├── .gitignore ├── .travis.yml ├── CHANGELOG.md ├── COPYING ├── Makefile ├── README.md ├── i3blocks.1.md ├── i3blocks.conf ├── include ├── bar.h ├── block.h ├── click.h ├── ini.h ├── io.h ├── json.h ├── log.h └── sched.h ├── scripts ├── bandwidth ├── battery ├── cpu_usage ├── disk ├── iface ├── load_average ├── memory ├── volume └── wifi └── src ├── .gitignore ├── bar.c ├── block.c ├── click.c ├── ini.c ├── io.c ├── json.c ├── main.c └── sched.c /.gitignore: -------------------------------------------------------------------------------- 1 | i3blocks 2 | i3blocks.1 3 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: c 2 | 3 | env: 4 | - TARGET=all 5 | - TARGET=debug 6 | 7 | compiler: 8 | - gcc 9 | 10 | script: 11 | - make $TARGET 12 | -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # CHANGELOG 2 | 3 | ## master 4 | 5 | ## 1.4 6 | 7 | * Several scripts improvements and additions. 8 | * Add support for the "markup" property (GH #94). 9 | * Merge contrib scripts into the defaults (GH #36). 10 | * Add support for persistent blocks (GH #85). 11 | * Add support for JSON output format (GH #85). 12 | 13 | ## 1.3 14 | 15 | * Fix click checking (GH #34). 16 | * Use an alarm (if needed), which is more accurate. 17 | * Use real-time signals (SIGRTMIN+1 to SIGRTMAX) for blocks, deprecate 18 | SIGUSR1 and SIGUSR2. 19 | * Implement asynchronous block updates (GH #23). 20 | * Now check for config file ~/.config/i3blocks/config (or 21 | $XDG_CONFIG_HOME/i3blocks/config if set) before ~/.i3blocks.conf (GH #32), 22 | and similar with $XDG_CONFIG_DIRS. 23 | * Add a cpu usage script (GH #11). 24 | 25 | ## 1.2 26 | 27 | * Always define env variables related to clicks. Thus, set them to an empty 28 | string when no click happened (GH #9). 29 | 30 | ## 1.1 31 | 32 | * Change return code for urgency to 33 (GH #8). 33 | * Do not setup stdin if it refers to a tty (GH #7). 34 | 35 | ## 1.0 36 | 37 | Initial release 38 | -------------------------------------------------------------------------------- /COPYING: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. We, the Free Software Foundation, use the 18 | GNU General Public License for most of our software; it applies also to 19 | any other work released this way by its authors. You can apply it to 20 | your programs, too. 21 | 22 | When we speak of free software, we are referring to freedom, not 23 | price. Our General Public Licenses are designed to make sure that you 24 | have the freedom to distribute copies of free software (and charge for 25 | them if you wish), that you receive source code or can get it if you 26 | want it, that you can change the software or use pieces of it in new 27 | free programs, and that you know you can do these things. 28 | 29 | To protect your rights, we need to prevent others from denying you 30 | these rights or asking you to surrender the rights. Therefore, you have 31 | certain responsibilities if you distribute copies of the software, or if 32 | you modify it: responsibilities to respect the freedom of others. 33 | 34 | For example, if you distribute copies of such a program, whether 35 | gratis or for a fee, you must pass on to the recipients the same 36 | freedoms that you received. You must make sure that they, too, receive 37 | or can get the source code. And you must show them these terms so they 38 | know their rights. 39 | 40 | Developers that use the GNU GPL protect your rights with two steps: 41 | (1) assert copyright on the software, and (2) offer you this License 42 | giving you legal permission to copy, distribute and/or modify it. 43 | 44 | For the developers' and authors' protection, the GPL clearly explains 45 | that there is no warranty for this free software. For both users' and 46 | authors' sake, the GPL requires that modified versions be marked as 47 | changed, so that their problems will not be attributed erroneously to 48 | authors of previous versions. 49 | 50 | Some devices are designed to deny users access to install or run 51 | modified versions of the software inside them, although the manufacturer 52 | can do so. This is fundamentally incompatible with the aim of 53 | protecting users' freedom to change the software. The systematic 54 | pattern of such abuse occurs in the area of products for individuals to 55 | use, which is precisely where it is most unacceptable. Therefore, we 56 | have designed this version of the GPL to prohibit the practice for those 57 | products. If such problems arise substantially in other domains, we 58 | stand ready to extend this provision to those domains in future versions 59 | of the GPL, as needed to protect the freedom of users. 60 | 61 | Finally, every program is threatened constantly by software patents. 62 | States should not allow patents to restrict development and use of 63 | software on general-purpose computers, but in those that do, we wish to 64 | avoid the special danger that patents applied to a free program could 65 | make it effectively proprietary. To prevent this, the GPL assures that 66 | patents cannot be used to render the program non-free. 67 | 68 | The precise terms and conditions for copying, distribution and 69 | modification follow. 70 | 71 | TERMS AND CONDITIONS 72 | 73 | 0. Definitions. 74 | 75 | "This License" refers to version 3 of the GNU General Public License. 76 | 77 | "Copyright" also means copyright-like laws that apply to other kinds of 78 | works, such as semiconductor masks. 79 | 80 | "The Program" refers to any copyrightable work licensed under this 81 | License. Each licensee is addressed as "you". "Licensees" and 82 | "recipients" may be individuals or organizations. 83 | 84 | To "modify" a work means to copy from or adapt all or part of the work 85 | in a fashion requiring copyright permission, other than the making of an 86 | exact copy. The resulting work is called a "modified version" of the 87 | earlier work or a work "based on" the earlier work. 88 | 89 | A "covered work" means either the unmodified Program or a work based 90 | on the Program. 91 | 92 | To "propagate" a work means to do anything with it that, without 93 | permission, would make you directly or secondarily liable for 94 | infringement under applicable copyright law, except executing it on a 95 | computer or modifying a private copy. Propagation includes copying, 96 | distribution (with or without modification), making available to the 97 | public, and in some countries other activities as well. 98 | 99 | To "convey" a work means any kind of propagation that enables other 100 | parties to make or receive copies. Mere interaction with a user through 101 | a computer network, with no transfer of a copy, is not conveying. 102 | 103 | An interactive user interface displays "Appropriate Legal Notices" 104 | to the extent that it includes a convenient and prominently visible 105 | feature that (1) displays an appropriate copyright notice, and (2) 106 | tells the user that there is no warranty for the work (except to the 107 | extent that warranties are provided), that licensees may convey the 108 | work under this License, and how to view a copy of this License. If 109 | the interface presents a list of user commands or options, such as a 110 | menu, a prominent item in the list meets this criterion. 111 | 112 | 1. Source Code. 113 | 114 | The "source code" for a work means the preferred form of the work 115 | for making modifications to it. "Object code" means any non-source 116 | form of a work. 117 | 118 | A "Standard Interface" means an interface that either is an official 119 | standard defined by a recognized standards body, or, in the case of 120 | interfaces specified for a particular programming language, one that 121 | is widely used among developers working in that language. 122 | 123 | The "System Libraries" of an executable work include anything, other 124 | than the work as a whole, that (a) is included in the normal form of 125 | packaging a Major Component, but which is not part of that Major 126 | Component, and (b) serves only to enable use of the work with that 127 | Major Component, or to implement a Standard Interface for which an 128 | implementation is available to the public in source code form. A 129 | "Major Component", in this context, means a major essential component 130 | (kernel, window system, and so on) of the specific operating system 131 | (if any) on which the executable work runs, or a compiler used to 132 | produce the work, or an object code interpreter used to run it. 133 | 134 | The "Corresponding Source" for a work in object code form means all 135 | the source code needed to generate, install, and (for an executable 136 | work) run the object code and to modify the work, including scripts to 137 | control those activities. However, it does not include the work's 138 | System Libraries, or general-purpose tools or generally available free 139 | programs which are used unmodified in performing those activities but 140 | which are not part of the work. For example, Corresponding Source 141 | includes interface definition files associated with source files for 142 | the work, and the source code for shared libraries and dynamically 143 | linked subprograms that the work is specifically designed to require, 144 | such as by intimate data communication or control flow between those 145 | subprograms and other parts of the work. 146 | 147 | The Corresponding Source need not include anything that users 148 | can regenerate automatically from other parts of the Corresponding 149 | Source. 150 | 151 | The Corresponding Source for a work in source code form is that 152 | same work. 153 | 154 | 2. Basic Permissions. 155 | 156 | All rights granted under this License are granted for the term of 157 | copyright on the Program, and are irrevocable provided the stated 158 | conditions are met. This License explicitly affirms your unlimited 159 | permission to run the unmodified Program. The output from running a 160 | covered work is covered by this License only if the output, given its 161 | content, constitutes a covered work. This License acknowledges your 162 | rights of fair use or other equivalent, as provided by copyright law. 163 | 164 | You may make, run and propagate covered works that you do not 165 | convey, without conditions so long as your license otherwise remains 166 | in force. You may convey covered works to others for the sole purpose 167 | of having them make modifications exclusively for you, or provide you 168 | with facilities for running those works, provided that you comply with 169 | the terms of this License in conveying all material for which you do 170 | not control copyright. Those thus making or running the covered works 171 | for you must do so exclusively on your behalf, under your direction 172 | and control, on terms that prohibit them from making any copies of 173 | your copyrighted material outside their relationship with you. 174 | 175 | Conveying under any other circumstances is permitted solely under 176 | the conditions stated below. Sublicensing is not allowed; section 10 177 | makes it unnecessary. 178 | 179 | 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 180 | 181 | No covered work shall be deemed part of an effective technological 182 | measure under any applicable law fulfilling obligations under article 183 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or 184 | similar laws prohibiting or restricting circumvention of such 185 | measures. 186 | 187 | When you convey a covered work, you waive any legal power to forbid 188 | circumvention of technological measures to the extent such circumvention 189 | is effected by exercising rights under this License with respect to 190 | the covered work, and you disclaim any intention to limit operation or 191 | modification of the work as a means of enforcing, against the work's 192 | users, your or third parties' legal rights to forbid circumvention of 193 | technological measures. 194 | 195 | 4. Conveying Verbatim Copies. 196 | 197 | You may convey verbatim copies of the Program's source code as you 198 | receive it, in any medium, provided that you conspicuously and 199 | appropriately publish on each copy an appropriate copyright notice; 200 | keep intact all notices stating that this License and any 201 | non-permissive terms added in accord with section 7 apply to the code; 202 | keep intact all notices of the absence of any warranty; and give all 203 | recipients a copy of this License along with the Program. 204 | 205 | You may charge any price or no price for each copy that you convey, 206 | and you may offer support or warranty protection for a fee. 207 | 208 | 5. Conveying Modified Source Versions. 209 | 210 | You may convey a work based on the Program, or the modifications to 211 | produce it from the Program, in the form of source code under the 212 | terms of section 4, provided that you also meet all of these conditions: 213 | 214 | a) The work must carry prominent notices stating that you modified 215 | it, and giving a relevant date. 216 | 217 | b) The work must carry prominent notices stating that it is 218 | released under this License and any conditions added under section 219 | 7. This requirement modifies the requirement in section 4 to 220 | "keep intact all notices". 221 | 222 | c) You must license the entire work, as a whole, under this 223 | License to anyone who comes into possession of a copy. This 224 | License will therefore apply, along with any applicable section 7 225 | additional terms, to the whole of the work, and all its parts, 226 | regardless of how they are packaged. This License gives no 227 | permission to license the work in any other way, but it does not 228 | invalidate such permission if you have separately received it. 229 | 230 | d) If the work has interactive user interfaces, each must display 231 | Appropriate Legal Notices; however, if the Program has interactive 232 | interfaces that do not display Appropriate Legal Notices, your 233 | work need not make them do so. 234 | 235 | A compilation of a covered work with other separate and independent 236 | works, which are not by their nature extensions of the covered work, 237 | and which are not combined with it such as to form a larger program, 238 | in or on a volume of a storage or distribution medium, is called an 239 | "aggregate" if the compilation and its resulting copyright are not 240 | used to limit the access or legal rights of the compilation's users 241 | beyond what the individual works permit. Inclusion of a covered work 242 | in an aggregate does not cause this License to apply to the other 243 | parts of the aggregate. 244 | 245 | 6. Conveying Non-Source Forms. 246 | 247 | You may convey a covered work in object code form under the terms 248 | of sections 4 and 5, provided that you also convey the 249 | machine-readable Corresponding Source under the terms of this License, 250 | in one of these ways: 251 | 252 | a) Convey the object code in, or embodied in, a physical product 253 | (including a physical distribution medium), accompanied by the 254 | Corresponding Source fixed on a durable physical medium 255 | customarily used for software interchange. 256 | 257 | b) Convey the object code in, or embodied in, a physical product 258 | (including a physical distribution medium), accompanied by a 259 | written offer, valid for at least three years and valid for as 260 | long as you offer spare parts or customer support for that product 261 | model, to give anyone who possesses the object code either (1) a 262 | copy of the Corresponding Source for all the software in the 263 | product that is covered by this License, on a durable physical 264 | medium customarily used for software interchange, for a price no 265 | more than your reasonable cost of physically performing this 266 | conveying of source, or (2) access to copy the 267 | Corresponding Source from a network server at no charge. 268 | 269 | c) Convey individual copies of the object code with a copy of the 270 | written offer to provide the Corresponding Source. This 271 | alternative is allowed only occasionally and noncommercially, and 272 | only if you received the object code with such an offer, in accord 273 | with subsection 6b. 274 | 275 | d) Convey the object code by offering access from a designated 276 | place (gratis or for a charge), and offer equivalent access to the 277 | Corresponding Source in the same way through the same place at no 278 | further charge. You need not require recipients to copy the 279 | Corresponding Source along with the object code. If the place to 280 | copy the object code is a network server, the Corresponding Source 281 | may be on a different server (operated by you or a third party) 282 | that supports equivalent copying facilities, provided you maintain 283 | clear directions next to the object code saying where to find the 284 | Corresponding Source. Regardless of what server hosts the 285 | Corresponding Source, you remain obligated to ensure that it is 286 | available for as long as needed to satisfy these requirements. 287 | 288 | e) Convey the object code using peer-to-peer transmission, provided 289 | you inform other peers where the object code and Corresponding 290 | Source of the work are being offered to the general public at no 291 | charge under subsection 6d. 292 | 293 | A separable portion of the object code, whose source code is excluded 294 | from the Corresponding Source as a System Library, need not be 295 | included in conveying the object code work. 296 | 297 | A "User Product" is either (1) a "consumer product", which means any 298 | tangible personal property which is normally used for personal, family, 299 | or household purposes, or (2) anything designed or sold for incorporation 300 | into a dwelling. In determining whether a product is a consumer product, 301 | doubtful cases shall be resolved in favor of coverage. For a particular 302 | product received by a particular user, "normally used" refers to a 303 | typical or common use of that class of product, regardless of the status 304 | of the particular user or of the way in which the particular user 305 | actually uses, or expects or is expected to use, the product. A product 306 | is a consumer product regardless of whether the product has substantial 307 | commercial, industrial or non-consumer uses, unless such uses represent 308 | the only significant mode of use of the product. 309 | 310 | "Installation Information" for a User Product means any methods, 311 | procedures, authorization keys, or other information required to install 312 | and execute modified versions of a covered work in that User Product from 313 | a modified version of its Corresponding Source. The information must 314 | suffice to ensure that the continued functioning of the modified object 315 | code is in no case prevented or interfered with solely because 316 | modification has been made. 317 | 318 | If you convey an object code work under this section in, or with, or 319 | specifically for use in, a User Product, and the conveying occurs as 320 | part of a transaction in which the right of possession and use of the 321 | User Product is transferred to the recipient in perpetuity or for a 322 | fixed term (regardless of how the transaction is characterized), the 323 | Corresponding Source conveyed under this section must be accompanied 324 | by the Installation Information. But this requirement does not apply 325 | if neither you nor any third party retains the ability to install 326 | modified object code on the User Product (for example, the work has 327 | been installed in ROM). 328 | 329 | The requirement to provide Installation Information does not include a 330 | requirement to continue to provide support service, warranty, or updates 331 | for a work that has been modified or installed by the recipient, or for 332 | the User Product in which it has been modified or installed. Access to a 333 | network may be denied when the modification itself materially and 334 | adversely affects the operation of the network or violates the rules and 335 | protocols for communication across the network. 336 | 337 | Corresponding Source conveyed, and Installation Information provided, 338 | in accord with this section must be in a format that is publicly 339 | documented (and with an implementation available to the public in 340 | source code form), and must require no special password or key for 341 | unpacking, reading or copying. 342 | 343 | 7. Additional Terms. 344 | 345 | "Additional permissions" are terms that supplement the terms of this 346 | License by making exceptions from one or more of its conditions. 347 | Additional permissions that are applicable to the entire Program shall 348 | be treated as though they were included in this License, to the extent 349 | that they are valid under applicable law. If additional permissions 350 | apply only to part of the Program, that part may be used separately 351 | under those permissions, but the entire Program remains governed by 352 | this License without regard to the additional permissions. 353 | 354 | When you convey a copy of a covered work, you may at your option 355 | remove any additional permissions from that copy, or from any part of 356 | it. (Additional permissions may be written to require their own 357 | removal in certain cases when you modify the work.) You may place 358 | additional permissions on material, added by you to a covered work, 359 | for which you have or can give appropriate copyright permission. 360 | 361 | Notwithstanding any other provision of this License, for material you 362 | add to a covered work, you may (if authorized by the copyright holders of 363 | that material) supplement the terms of this License with terms: 364 | 365 | a) Disclaiming warranty or limiting liability differently from the 366 | terms of sections 15 and 16 of this License; or 367 | 368 | b) Requiring preservation of specified reasonable legal notices or 369 | author attributions in that material or in the Appropriate Legal 370 | Notices displayed by works containing it; or 371 | 372 | c) Prohibiting misrepresentation of the origin of that material, or 373 | requiring that modified versions of such material be marked in 374 | reasonable ways as different from the original version; or 375 | 376 | d) Limiting the use for publicity purposes of names of licensors or 377 | authors of the material; or 378 | 379 | e) Declining to grant rights under trademark law for use of some 380 | trade names, trademarks, or service marks; or 381 | 382 | f) Requiring indemnification of licensors and authors of that 383 | material by anyone who conveys the material (or modified versions of 384 | it) with contractual assumptions of liability to the recipient, for 385 | any liability that these contractual assumptions directly impose on 386 | those licensors and authors. 387 | 388 | All other non-permissive additional terms are considered "further 389 | restrictions" within the meaning of section 10. If the Program as you 390 | received it, or any part of it, contains a notice stating that it is 391 | governed by this License along with a term that is a further 392 | restriction, you may remove that term. If a license document contains 393 | a further restriction but permits relicensing or conveying under this 394 | License, you may add to a covered work material governed by the terms 395 | of that license document, provided that the further restriction does 396 | not survive such relicensing or conveying. 397 | 398 | If you add terms to a covered work in accord with this section, you 399 | must place, in the relevant source files, a statement of the 400 | additional terms that apply to those files, or a notice indicating 401 | where to find the applicable terms. 402 | 403 | Additional terms, permissive or non-permissive, may be stated in the 404 | form of a separately written license, or stated as exceptions; 405 | the above requirements apply either way. 406 | 407 | 8. Termination. 408 | 409 | You may not propagate or modify a covered work except as expressly 410 | provided under this License. Any attempt otherwise to propagate or 411 | modify it is void, and will automatically terminate your rights under 412 | this License (including any patent licenses granted under the third 413 | paragraph of section 11). 414 | 415 | However, if you cease all violation of this License, then your 416 | license from a particular copyright holder is reinstated (a) 417 | provisionally, unless and until the copyright holder explicitly and 418 | finally terminates your license, and (b) permanently, if the copyright 419 | holder fails to notify you of the violation by some reasonable means 420 | prior to 60 days after the cessation. 421 | 422 | Moreover, your license from a particular copyright holder is 423 | reinstated permanently if the copyright holder notifies you of the 424 | violation by some reasonable means, this is the first time you have 425 | received notice of violation of this License (for any work) from that 426 | copyright holder, and you cure the violation prior to 30 days after 427 | your receipt of the notice. 428 | 429 | Termination of your rights under this section does not terminate the 430 | licenses of parties who have received copies or rights from you under 431 | this License. If your rights have been terminated and not permanently 432 | reinstated, you do not qualify to receive new licenses for the same 433 | material under section 10. 434 | 435 | 9. Acceptance Not Required for Having Copies. 436 | 437 | You are not required to accept this License in order to receive or 438 | run a copy of the Program. Ancillary propagation of a covered work 439 | occurring solely as a consequence of using peer-to-peer transmission 440 | to receive a copy likewise does not require acceptance. However, 441 | nothing other than this License grants you permission to propagate or 442 | modify any covered work. These actions infringe copyright if you do 443 | not accept this License. Therefore, by modifying or propagating a 444 | covered work, you indicate your acceptance of this License to do so. 445 | 446 | 10. Automatic Licensing of Downstream Recipients. 447 | 448 | Each time you convey a covered work, the recipient automatically 449 | receives a license from the original licensors, to run, modify and 450 | propagate that work, subject to this License. You are not responsible 451 | for enforcing compliance by third parties with this License. 452 | 453 | An "entity transaction" is a transaction transferring control of an 454 | organization, or substantially all assets of one, or subdividing an 455 | organization, or merging organizations. If propagation of a covered 456 | work results from an entity transaction, each party to that 457 | transaction who receives a copy of the work also receives whatever 458 | licenses to the work the party's predecessor in interest had or could 459 | give under the previous paragraph, plus a right to possession of the 460 | Corresponding Source of the work from the predecessor in interest, if 461 | the predecessor has it or can get it with reasonable efforts. 462 | 463 | You may not impose any further restrictions on the exercise of the 464 | rights granted or affirmed under this License. For example, you may 465 | not impose a license fee, royalty, or other charge for exercise of 466 | rights granted under this License, and you may not initiate litigation 467 | (including a cross-claim or counterclaim in a lawsuit) alleging that 468 | any patent claim is infringed by making, using, selling, offering for 469 | sale, or importing the Program or any portion of it. 470 | 471 | 11. Patents. 472 | 473 | A "contributor" is a copyright holder who authorizes use under this 474 | License of the Program or a work on which the Program is based. The 475 | work thus licensed is called the contributor's "contributor version". 476 | 477 | A contributor's "essential patent claims" are all patent claims 478 | owned or controlled by the contributor, whether already acquired or 479 | hereafter acquired, that would be infringed by some manner, permitted 480 | by this License, of making, using, or selling its contributor version, 481 | but do not include claims that would be infringed only as a 482 | consequence of further modification of the contributor version. For 483 | purposes of this definition, "control" includes the right to grant 484 | patent sublicenses in a manner consistent with the requirements of 485 | this License. 486 | 487 | Each contributor grants you a non-exclusive, worldwide, royalty-free 488 | patent license under the contributor's essential patent claims, to 489 | make, use, sell, offer for sale, import and otherwise run, modify and 490 | propagate the contents of its contributor version. 491 | 492 | In the following three paragraphs, a "patent license" is any express 493 | agreement or commitment, however denominated, not to enforce a patent 494 | (such as an express permission to practice a patent or covenant not to 495 | sue for patent infringement). To "grant" such a patent license to a 496 | party means to make such an agreement or commitment not to enforce a 497 | patent against the party. 498 | 499 | If you convey a covered work, knowingly relying on a patent license, 500 | and the Corresponding Source of the work is not available for anyone 501 | to copy, free of charge and under the terms of this License, through a 502 | publicly available network server or other readily accessible means, 503 | then you must either (1) cause the Corresponding Source to be so 504 | available, or (2) arrange to deprive yourself of the benefit of the 505 | patent license for this particular work, or (3) arrange, in a manner 506 | consistent with the requirements of this License, to extend the patent 507 | license to downstream recipients. "Knowingly relying" means you have 508 | actual knowledge that, but for the patent license, your conveying the 509 | covered work in a country, or your recipient's use of the covered work 510 | in a country, would infringe one or more identifiable patents in that 511 | country that you have reason to believe are valid. 512 | 513 | If, pursuant to or in connection with a single transaction or 514 | arrangement, you convey, or propagate by procuring conveyance of, a 515 | covered work, and grant a patent license to some of the parties 516 | receiving the covered work authorizing them to use, propagate, modify 517 | or convey a specific copy of the covered work, then the patent license 518 | you grant is automatically extended to all recipients of the covered 519 | work and works based on it. 520 | 521 | A patent license is "discriminatory" if it does not include within 522 | the scope of its coverage, prohibits the exercise of, or is 523 | conditioned on the non-exercise of one or more of the rights that are 524 | specifically granted under this License. You may not convey a covered 525 | work if you are a party to an arrangement with a third party that is 526 | in the business of distributing software, under which you make payment 527 | to the third party based on the extent of your activity of conveying 528 | the work, and under which the third party grants, to any of the 529 | parties who would receive the covered work from you, a discriminatory 530 | patent license (a) in connection with copies of the covered work 531 | conveyed by you (or copies made from those copies), or (b) primarily 532 | for and in connection with specific products or compilations that 533 | contain the covered work, unless you entered into that arrangement, 534 | or that patent license was granted, prior to 28 March 2007. 535 | 536 | Nothing in this License shall be construed as excluding or limiting 537 | any implied license or other defenses to infringement that may 538 | otherwise be available to you under applicable patent law. 539 | 540 | 12. No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | RELEASE_VERSION = 1.4 2 | 3 | ifndef PREFIX 4 | PREFIX=/usr/local 5 | endif 6 | ifndef SYSCONFDIR 7 | ifeq ($(PREFIX),/usr) 8 | SYSCONFDIR=/etc 9 | else 10 | SYSCONFDIR=$(PREFIX)/etc 11 | endif 12 | endif 13 | ifndef DATAROOTDIR 14 | DATAROOTDIR=$(PREFIX)/share 15 | endif 16 | ifndef LIBEXECDIR 17 | LIBEXECDIR=$(PREFIX)/libexec 18 | endif 19 | ifndef VERSION 20 | VERSION = $(shell git describe --tags --always 2> /dev/null) 21 | ifeq ($(strip $(VERSION)),) 22 | VERSION = $(RELEASE_VERSION) 23 | endif 24 | endif 25 | 26 | PROGRAM = i3blocks 27 | 28 | CPPFLAGS += -DSYSCONFDIR=\"$(SYSCONFDIR)\" 29 | CPPFLAGS += -DVERSION=\"${VERSION}\" 30 | CFLAGS += -std=gnu99 -Iinclude -Wall -Werror=format-security 31 | 32 | OBJS := $(sort $(wildcard src/*.c)) 33 | OBJS := $(OBJS:.c=.o) 34 | 35 | %.o: %.c %.h 36 | $(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $< 37 | @echo " CC $<" 38 | 39 | all: $(PROGRAM) 40 | 41 | debug: CPPFLAGS += -DDEBUG 42 | debug: CFLAGS += -g 43 | debug: $(PROGRAM) 44 | 45 | $(PROGRAM): ${OBJS} 46 | $(CC) $(LDFLAGS) -o $@ $^ 47 | @echo " LD $@" 48 | 49 | man: $(PROGRAM).1 50 | 51 | $(PROGRAM).1: $(PROGRAM).1.md 52 | pandoc --to man --standalone --output $@ $< 53 | 54 | clean: 55 | rm -f src/*.o $(PROGRAM) 56 | 57 | install: all 58 | install -m 755 -d $(DESTDIR)$(PREFIX)/bin 59 | install -m 755 -d $(DESTDIR)$(SYSCONFDIR) 60 | install -m 755 -d $(DESTDIR)$(LIBEXECDIR)/$(PROGRAM) 61 | install -m 755 $(PROGRAM) $(DESTDIR)$(PREFIX)/bin/$(PROGRAM) 62 | sed 's,$$SCRIPT_DIR,$(LIBEXECDIR)/$(PROGRAM),' $(PROGRAM).conf > $(DESTDIR)$(SYSCONFDIR)/$(PROGRAM).conf 63 | chmod 644 $(DESTDIR)$(SYSCONFDIR)/$(PROGRAM).conf 64 | install -m 755 scripts/* $(DESTDIR)$(LIBEXECDIR)/$(PROGRAM)/ 65 | 66 | install-man: man 67 | install -m 755 -d $(DESTDIR)$(DATAROOTDIR)/man/man1 68 | install -m 644 $(PROGRAM).1 $(DESTDIR)$(DATAROOTDIR)/man/man1 69 | 70 | uninstall: 71 | rm -f $(DESTDIR)$(PREFIX)/bin/$(PROGRAM) 72 | rm -f $(DESTDIR)$(SYSCONFDIR)/$(PROGRAM).conf 73 | rm -rf $(DESTDIR)$(LIBEXECDIR)/$(PROGRAM) 74 | 75 | uninstall-man: 76 | rm -f $(DESTDIR)$(DATAROOTDIR)/man/man1/$(PROGRAM).1 77 | 78 | dist: clean man 79 | ( git ls-files * ; ls $(PROGRAM).1 ) | \ 80 | tar -czT - --transform 's,^,$(PROGRAM)-$(VERSION)/,' \ 81 | -f $(PROGRAM)-$(VERSION).tar.gz 82 | 83 | distclean: clean 84 | rm -f $(PROGRAM).1 $(PROGRAM)-*.tar.gz 85 | 86 | .PHONY: all clean install uninstall install-man uninstall-man 87 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # i3blocks-gaps 2 | 3 | This repository is a fork of [i3blocks](https://github.com/vivien/i3blocks) made to be compatible with [i3-gaps](https://github.com/Airblader/i3), itself a fork of i3wm. 4 | 5 | *** 6 | 7 | i3blocks is a highly flexible **status line** for the [i3](http://i3wm.org) 8 | window manager. It handles *clicks*, *signals* and *language-agnostic* user 9 | *scripts*. 10 | 11 | The content of each *block* (e.g. time, battery status, network state, ...) is 12 | the output of a *command* provided by the user. Blocks are updated on *click*, 13 | at a given *interval* of time or on a given *signal*, also specified by the 14 | user. 15 | 16 | It aims to respect the 17 | [i3bar protocol](http://i3wm.org/docs/i3bar-protocol.html), providing 18 | customization such as text alignment, urgency, color, and more. 19 | 20 | - - - 21 | 22 | Here is an example of status line, showing the time updated every 5 seconds, 23 | the volume updated only when i3blocks receives a SIGRTMIN+1, and click events. 24 | 25 | ```` ini 26 | [volume] 27 | label=Volume: 28 | command=amixer get Master | grep -E -o '[0-9]{1,3}?%' | head -1 29 | interval=once 30 | signal=1 31 | # use 'pkill -RTMIN+1 i3blocks' after changing the volume 32 | 33 | [time] 34 | command=date '+%D %T' 35 | interval=5 36 | 37 | [clickme] 38 | full_text=Click me! 39 | command=echo button=$BLOCK_BUTTON x=$BLOCK_X y=$BLOCK_Y 40 | min_width=button=1 x=1366 y=768 41 | align=left 42 | ```` 43 | 44 | You can use your own scripts, or the 45 | [ones](https://github.com/Airblader/i3blocks-gaps/tree/master/scripts) provided with 46 | i3blocks. Many [community-contributed scripts](https://github.com/vivien/i3blocks-contrib) are also available. Feel free to contribute and improve them! 47 | 48 | The default config will look like this: 49 | 50 | ![](http://i.imgur.com/p3d6MeK.png) 51 | 52 | The scripts provided by default may use external tools: 53 | 54 | * `mpstat` (often provided by the *sysstat* package) used by `cpu_usage`. 55 | * `acpi` (often provided by a package of the same name) used by `battery`. 56 | 57 | The user contributed scripts may also use external tools: 58 | 59 | * `playerctl` (available [here](https://github.com/acrisci/playerctl)) used by `mediaplayer`. 60 | * `sensors` (often provided by the *lm-sensors* package) used by `temperature`. 61 | 62 | ## Documentation 63 | 64 | For more information about how it works, please refer to the 65 | [**manpage**](http://vivien.github.io/i3blocks). 66 | 67 | You can also take a look at the 68 | [i3bar protocol](http://i3wm.org/docs/i3bar-protocol.html) to see what 69 | possibilities it offers you. 70 | 71 | Take a look at the [wiki](https://github.com/vivien/i3blocks/wiki) for examples 72 | of blocks and screenshots. If you want to share your ideas and status line, 73 | feel free to edit it! 74 | 75 | ## Installation 76 | 77 | Install i3blocks-gaps from source: 78 | 79 | $ git clone https://github.com/Airblader/i3blocks-gaps i3blocks 80 | $ cd i3blocks 81 | $ make clean debug # or make clean all 82 | # make install 83 | 84 | Note: the generation of the manpage requires the `pandoc` utility, packaged in 85 | common distributions as `pandoc`. 86 | 87 | ### Usage 88 | 89 | * Set your `status_command` in a bar block of your i3 config file: 90 | 91 | bar { 92 | status_command i3blocks 93 | } 94 | 95 | * For customization, copy the default i3blocks.conf into ~/.i3blocks.conf 96 | (e.g. `cp /etc/i3blocks.conf ~/.i3blocks.conf`) 97 | * Restart i3 (e.g. `i3-msg restart`) 98 | 99 | ## Copying 100 | 101 | i3blocks is Copyright (C) 2014 Vivien Didelot
102 | See the file COPYING for information of licensing and distribution. 103 | -------------------------------------------------------------------------------- /i3blocks.1.md: -------------------------------------------------------------------------------- 1 | % I3BLOCKS(1) 2 | 3 | # NAME 4 | i3blocks - A flexible scheduler for your i3bar blocks 5 | 6 | # SYNOPSIS 7 | 8 | i3blocks [*options*] 9 | 10 | # DESCRIPTION 11 | 12 | **i3blocks** allows one to easily describe blocks in a simple format, and 13 | generate a status line for i3bar(1). It handles clicks, signals and time 14 | interval for user scripts. 15 | 16 | #OPTIONS 17 | -c 18 | : Specifies an alternate configuration file path. By default, i3blocks looks 19 | for configuration files in the following order (note that /etc may be 20 | prefixed with /usr/local depending on the compilation flags): 21 | 22 | 1. ~/.config/i3blocks/config (or $XDG_CONFIG_HOME/i3blocks/config if set) 23 | 2. ~/.i3blocks.conf 24 | 3. /etc/xdg/i3blocks/config (or $XDG_CONFIG_DIRS/i3blocks/config if set) 25 | 4. /etc/i3blocks.conf 26 | 27 | -v 28 | : Log level. This option is cumulative. By default, error messages are 29 | displayed on stderr. Passed once, a failure during an update is shown 30 | within the block. Passed twice enables the debug messages on stderr. 31 | 32 | -V 33 | : Print the version and exit. 34 | 35 | -h 36 | : Print the help message and exit. 37 | 38 | # CONFIGURATION 39 | 40 | The configuration file is an ini file. Each section describes a new block. 41 | A line beginning with a `#` sign is a comment, and empty lines are ignored. 42 | A property is a `key=value` pair per line, with no space around the equal sign. 43 | Properties declared outside a block (i.e. at the beginning of the file) 44 | describe global settings. 45 | 46 | Here is an example config file: 47 | 48 | # This is a comment 49 | interval=5 50 | color=#00FF00 51 | 52 | [weather] 53 | command=~/bin/weather.pl 54 | interval=1800 55 | 56 | [time] 57 | command=date +%T 58 | 59 | To use i3blocks as your status line, define it in a *bar* block of your 60 | `~/i3/config` file: 61 | 62 | bar { 63 | status_command i3blocks 64 | } 65 | 66 | # BLOCK 67 | 68 | The properties used to describe a block are the keys specified in the i3bar 69 | protocol http://i3wm.org/docs/i3bar-protocol.html , plus additional properties 70 | used by **i3blocks** to describe when and how to update a block. 71 | All the supported properties are described below. 72 | 73 | The following keys are standard, see 74 | http://i3wm.org/docs/i3bar-protocol.html 75 | for details. 76 | 77 | - `full_text` 78 | 79 | - `short_text` 80 | 81 | - `color` 82 | 83 | - `background` 84 | 85 | - `border` 86 | 87 | - `min_width` 88 | 89 | - `align` 90 | 91 | - `name` 92 | 93 | - `instance` 94 | 95 | - `urgent` 96 | 97 | - `separator` 98 | 99 | - `separator_block_width` 100 | 101 | - `markup` 102 | 103 | The following keys are specific to **i3blocks**. 104 | 105 | `command` 106 | : The command executed by a shell, used to update the block. The expected 107 | behavior is described below, in the **COMMAND** section. 108 | 109 | `interval` 110 | : If it is a positive integer, then the block is spawned on startup and the 111 | value is used as a time interval in seconds to schedule future updates. 112 | If unspecified or 0, the block won't be executed on startup (which is 113 | useful to simulate buttons). 114 | 115 | If "*once*" (or -1), the block will be executed only on startup (note that a 116 | click or signal will still trigger an update). 117 | 118 | If "*repeat*" (or -2), the block will be spawned on startup, and as soon as 119 | it terminates (useful to repeat blocking commands). Use with caution! 120 | 121 | If "*persist*" (or -3), the block will be executed only on startup, and 122 | updated as soon as it outputs a line. Thus limited to single line updates. 123 | 124 | `signal` 125 | : The signal number used to update the block. All the real-time (think 126 | prioritized and queueable) signals are available to the user. The number is 127 | valid between 1 and N, where SIGRTMIN+N = SIGRTMAX. (Note: there are 31 128 | real-time signals in Linux.) For instance, `signal=10` means that this 129 | block will be updated when **i3blocks** receives SIGRTMIN+10. 130 | 131 | `label` 132 | : An optional label to preprend to the `full_text` after an update. 133 | 134 | `format` 135 | : This property specifies the format of the output text. The default format 136 | is plain text, as described in the **COMMAND** section. 137 | If "json" (or 1) is used, the block output is parsed as JSON. 138 | 139 | # COMMAND 140 | 141 | The value of the `command` key will be passed and executed as is by a shell. 142 | 143 | The standard output of the command line is used to update the block content. 144 | Each non-empty line of the output will overwrite the corresponding property: 145 | 146 | 1. full_text 147 | 2. short_text 148 | 3. color 149 | 150 | For example, this script sets the `full_text` in blue but no `short_text`: 151 | 152 | echo "Here's my label" 153 | echo 154 | echo \#0000FF 155 | 156 | If the command line returns 0 or 33, the block is updated. Otherwise, it is 157 | considered a failure and the first line (if any) is still displayed. Note that 158 | stderr is ignored. A return code of 33 will set the `urgent` flag to true. 159 | 160 | For example, this script prints the battery percentage and sets the urgent flag 161 | if it is below 10%: 162 | 163 | BAT=`acpi -b | grep -E -o '[0-9][0-9]?%'` 164 | echo "BAT: $BAT" 165 | test ${BAT%?} -le 10 && exit 33 || exit 0 166 | 167 | When forking a block command, **i3blocks** will set the environment with some 168 | `BLOCK_*` variables. The following variables are always provided, with 169 | eventually an empty string as the value. 170 | 171 | `BLOCK_NAME` 172 | : The name of the block (usually the section name). 173 | 174 | `BLOCK_INSTANCE` 175 | : An optional argument to the script. 176 | 177 | `BLOCK_BUTTON` 178 | : Mouse button (1, 2 or 3) if the block was clicked. 179 | 180 | `BLOCK_X` and `BLOCK_Y` 181 | : Coordinates where the click occurred, if the block was clicked. 182 | 183 | Here is an example using the environment: 184 | 185 | [block] 186 | command=echo name=$BLOCK_NAME instance=$BLOCK_INSTANCE 187 | interval=1 188 | 189 | [clickme] 190 | full_text=Click me! 191 | command=echo button=$BLOCK_BUTTON x=$BLOCK_X y=$BLOCK_Y 192 | min_width=button=1 x=1366 y=768 193 | align=left 194 | 195 | Note that **i3blocks** provides a set of optional scripts for convenience, such 196 | as network status, battery check, cpu load, volume, etc. 197 | 198 | # EXAMPLES 199 | 200 | As an example, here is a close configuration to i3status(1) default settings: 201 | 202 | **TODO** 203 | 204 | interval=5 205 | signal=10 206 | 207 | [ipv6] 208 | 209 | [free] 210 | 211 | [dhcp] 212 | 213 | [vpn] 214 | 215 | [wifi] 216 | 217 | [ethernet] 218 | min_width=E: 255.255.255.255 (1000 Mbit/s) 219 | 220 | [battery] 221 | 222 | [cpu] 223 | 224 | [datetime] 225 | 226 | The following block shows the usage of `signal` with some i3(1) bindings 227 | which adjust the volume, before issuing a `pkill -RTMIN+1 i3blocks`: 228 | 229 | [volume] 230 | command=echo -n 'Volume: '; amixer get Master | grep -E -o '[0-9][0-9]?%' 231 | interval=once 232 | signal=1 233 | # no interval, only check on SIGRTMIN+1 234 | 235 | Here is an example of a very minimalist config, assuming you have a bunch of 236 | scripts under `~/bin/blocks/` with the same name as the blocks: 237 | 238 | command=~/bin/blocks/$BLOCK_NAME 239 | interval=1 240 | 241 | [free] 242 | [wifi] 243 | [ethernet] 244 | [battery] 245 | [cpu] 246 | [datetime] 247 | 248 | # SEE ALSO 249 | 250 | The development of i3blocks takes place on [Github](https://github.com/vivien/i3blocks). 251 | 252 | The [wiki](https://github.com/vivien/i3blocks/wiki) is a good 253 | source of examples for blocks and screenshots. 254 | 255 | `i3` (1), `i3bar` (1), `i3status` (1) 256 | 257 | # Reporting Bugs 258 | 259 | Please report bugs on the [issue tracker](https://github.com/vivien/i3blocks/issues). 260 | 261 | # Known Bugs 262 | 263 | None. 264 | 265 | # AUTHOR 266 | 267 | Written by Vivien Didelot . 268 | 269 | # COPYRIGHT 270 | 271 | Copyright (C) 2014 Vivien Didelot 272 | 273 | License GPLv3+: GNU GPL version 3 or later . 274 | 275 | This is free software: you are free to change and redistribute it. There is NO 276 | WARRANTY, to the extent permitted by law. 277 | -------------------------------------------------------------------------------- /i3blocks.conf: -------------------------------------------------------------------------------- 1 | # i3blocks config file 2 | # 3 | # Please see man i3blocks for a complete reference! 4 | # The man page is also hosted at http://vivien.github.io/i3blocks 5 | # 6 | # List of valid properties: 7 | # 8 | # align 9 | # color 10 | # background 11 | # border 12 | # command 13 | # full_text 14 | # instance 15 | # interval 16 | # label 17 | # min_width 18 | # name 19 | # separator 20 | # separator_block_width 21 | # short_text 22 | # signal 23 | # urgent 24 | 25 | # Global properties 26 | # 27 | # The top properties below are applied to every block, but can be overridden. 28 | # Each block command defaults to the script name to avoid boilerplate. 29 | command=$SCRIPT_DIR/$BLOCK_NAME 30 | separator_block_width=15 31 | markup=none 32 | 33 | # Volume indicator 34 | # 35 | # The first parameter sets the step (and units to display) 36 | # The second parameter overrides the mixer selection 37 | # See the script for details. 38 | [volume] 39 | label=VOL 40 | #label=♪ 41 | instance=Master 42 | #instance=PCM 43 | interval=once 44 | signal=10 45 | 46 | # Memory usage 47 | # 48 | # The type defaults to "mem" if the instance is not specified. 49 | [memory] 50 | label=MEM 51 | separator=false 52 | interval=30 53 | 54 | [memory] 55 | label=SWAP 56 | instance=swap 57 | separator=false 58 | interval=30 59 | 60 | # Disk usage 61 | # 62 | # The directory defaults to $HOME if the instance is not specified. 63 | # The script may be called with a optional argument to set the alert 64 | # (defaults to 10 for 10%). 65 | [disk] 66 | label=HOME 67 | #instance=/mnt/data 68 | interval=30 69 | 70 | # Network interface monitoring 71 | # 72 | # If the instance is not specified, use the interface used for default route. 73 | # The address can be forced to IPv4 or IPv6 with -4 or -6 switches. 74 | [iface] 75 | #instance=wlan0 76 | color=#00FF00 77 | interval=10 78 | separator=false 79 | 80 | [wifi] 81 | #instance=wlp3s0 82 | interval=10 83 | separator=false 84 | 85 | [bandwidth] 86 | #instance=eth0 87 | interval=5 88 | 89 | # CPU usage 90 | # 91 | # The script may be called with -w and -c switches to specify thresholds, 92 | # see the script for details. 93 | [cpu_usage] 94 | label=CPU 95 | interval=10 96 | min_width=CPU: 100.00% 97 | #separator=false 98 | 99 | #[load_average] 100 | #interval=10 101 | 102 | # Battery indicator 103 | # 104 | # The battery instance defaults to 0. 105 | [battery] 106 | label=BAT 107 | #label=⚡ 108 | #instance=1 109 | interval=30 110 | 111 | # Date Time 112 | # 113 | [time] 114 | command=date '+%Y-%m-%d %H:%M:%S' 115 | interval=5 116 | -------------------------------------------------------------------------------- /include/bar.h: -------------------------------------------------------------------------------- 1 | /* 2 | * bar.h - definition of a status line handling functions 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _BAR_H 20 | #define _BAR_H 21 | 22 | struct bar { 23 | struct block *blocks; 24 | unsigned int num; 25 | }; 26 | 27 | void bar_poll_timed(struct bar *); 28 | void bar_poll_clicked(struct bar *); 29 | void bar_poll_outdated(struct bar *); 30 | void bar_poll_signaled(struct bar *, int); 31 | void bar_poll_exited(struct bar *); 32 | void bar_poll_readable(struct bar *, int); 33 | 34 | #endif /* _BAR_H */ 35 | -------------------------------------------------------------------------------- /include/block.h: -------------------------------------------------------------------------------- 1 | /* 2 | * block.h - definition of a block 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _BLOCK_H 20 | #define _BLOCK_H 21 | 22 | #include 23 | 24 | #include "click.h" 25 | #include "log.h" 26 | 27 | #define PROP_I3BAR 1 /* See http://i3wm.org/docs/i3bar-protocol.html */ 28 | #define PROP_GAPS 1 /* See https://github.com/Airblader/i3/blob/gaps/docs/i3bar-protocol */ 29 | #define PROP_STRING 2 30 | #define PROP_NUMBER 4 31 | #define PROP_BOOLEAN 8 32 | 33 | #define INTER_ONCE -1 34 | #define INTER_REPEAT -2 35 | #define INTER_PERSIST -3 36 | 37 | #define FORMAT_PLAIN 0 38 | #define FORMAT_JSON 1 39 | 40 | /* Block command exit codes */ 41 | #define EXIT_URGENT '!' /* 33 */ 42 | #define EXIT_ERR_INTERNAL 66 43 | 44 | #define PROPERTIES(_) \ 45 | _(full_text, 1024, PROP_I3BAR | PROP_STRING) \ 46 | _(short_text, 512, PROP_I3BAR | PROP_STRING) \ 47 | _(color, 10, PROP_I3BAR | PROP_STRING) \ 48 | _(background, 10, PROP_I3BAR | PROP_STRING) \ 49 | _(border, 10, PROP_I3BAR | PROP_STRING) \ 50 | _(min_width, 1024, PROP_I3BAR | PROP_STRING | PROP_NUMBER) \ 51 | _(align, 8, PROP_I3BAR | PROP_STRING) \ 52 | _(name, 32, PROP_I3BAR | PROP_STRING) \ 53 | _(instance, 256, PROP_I3BAR | PROP_STRING) \ 54 | _(urgent, 8, PROP_I3BAR | PROP_BOOLEAN) \ 55 | _(separator, 8, PROP_I3BAR | PROP_BOOLEAN) \ 56 | _(separator_block_width, 8, PROP_I3BAR | PROP_NUMBER) \ 57 | _(markup, 8, PROP_I3BAR | PROP_STRING) \ 58 | _(command, 1024, PROP_STRING) \ 59 | _(interval, 8, PROP_STRING | PROP_NUMBER) \ 60 | _(signal, 8, PROP_NUMBER) \ 61 | _(label, 32, PROP_STRING) \ 62 | _(format, 8, PROP_STRING | PROP_NUMBER) \ 63 | _(border_top, 8, PROP_GAPS | PROP_NUMBER) \ 64 | _(border_bottom, 8, PROP_GAPS | PROP_NUMBER) \ 65 | _(border_left, 8, PROP_GAPS | PROP_NUMBER) \ 66 | _(border_right, 8, PROP_GAPS | PROP_NUMBER) \ 67 | 68 | struct properties { 69 | #define DEFINE(_name, _size, _flags) char _name[_size]; 70 | PROPERTIES(DEFINE); 71 | #undef DEFINE 72 | }; 73 | 74 | struct block { 75 | struct properties default_props; 76 | struct properties updated_props; 77 | 78 | /* Shortcuts */ 79 | int interval; 80 | unsigned signal; 81 | unsigned format; 82 | 83 | /* Runtime info */ 84 | unsigned long timestamp; 85 | pid_t pid; 86 | int out, err; 87 | }; 88 | 89 | /* Shortcuts to config */ 90 | #define NAME(_block) (_block->default_props.name) 91 | #define INSTANCE(_block) (_block->default_props.instance) 92 | #define COMMAND(_block) (_block->default_props.command) 93 | #define LABEL(_block) (_block->default_props.label) 94 | #define INTERVAL(_block) (_block->default_props.interval) 95 | 96 | /* Shortcuts to update */ 97 | #define FULL_TEXT(_block) (_block->updated_props.full_text) 98 | 99 | #define bdebug(block, msg, ...) \ 100 | debug("[%s] " msg, NAME(block), ##__VA_ARGS__) 101 | 102 | #define berror(block, msg, ...) \ 103 | error("[%s] " msg, NAME(block), ##__VA_ARGS__) 104 | 105 | #define berrorx(block, msg, ...) \ 106 | errorx("[%s] " msg, NAME(block), ##__VA_ARGS__) 107 | 108 | void block_setup(struct block *); 109 | void block_spawn(struct block *, struct click *); 110 | void block_reap(struct block *); 111 | void block_update(struct block *); 112 | 113 | #endif /* _BLOCK_H */ 114 | -------------------------------------------------------------------------------- /include/click.h: -------------------------------------------------------------------------------- 1 | /* 2 | * click.h - definition of click parsing functions 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _CLICK_H 20 | #define _CLICK_H 21 | 22 | struct click { 23 | char *name; 24 | char *instance; 25 | char *button; 26 | char *x; 27 | char *y; 28 | }; 29 | 30 | void click_parse(char *, struct click *); 31 | 32 | #endif /* _CLICK_H */ 33 | -------------------------------------------------------------------------------- /include/ini.h: -------------------------------------------------------------------------------- 1 | /* 2 | * ini.h - INI parsing header 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _INI_H 20 | #define _INI_H 21 | 22 | #include "bar.h" 23 | 24 | struct bar *ini_load(const char *); 25 | 26 | #endif /* _INI_H */ 27 | -------------------------------------------------------------------------------- /include/io.h: -------------------------------------------------------------------------------- 1 | /* 2 | * io.h - header for non-blocking I/O operations 3 | * Copyright (C) 2015 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _IO_H 20 | #define _IO_H 21 | 22 | int io_signal(int, int); 23 | int io_readline(int, char *, size_t); 24 | 25 | #endif /* _IO_H */ 26 | -------------------------------------------------------------------------------- /include/json.h: -------------------------------------------------------------------------------- 1 | /* 2 | * json.h - JSON manipulation header 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _JSON_H 20 | #define _JSON_H 21 | 22 | #include "bar.h" 23 | #include "block.h" 24 | 25 | void json_parse(const char *json, const char *name, int *start, int *len); 26 | void json_print_bar(struct bar *); 27 | 28 | #endif /* _JSON_H */ 29 | 30 | -------------------------------------------------------------------------------- /include/log.h: -------------------------------------------------------------------------------- 1 | /* 2 | * log.h - debug and error printing macros 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _LOG_H 20 | #define _LOG_H 21 | 22 | #include 23 | #include 24 | #include 25 | 26 | extern unsigned log_level; 27 | 28 | enum log_level { 29 | LOG_NORMAL, 30 | LOG_WARN, 31 | LOG_DEBUG, 32 | }; 33 | 34 | #define debug(msg, ...) \ 35 | if (log_level >= LOG_DEBUG) { \ 36 | fprintf(stderr, "DEBUG %s:%d: " msg "\n", __func__, __LINE__, ##__VA_ARGS__); \ 37 | } 38 | 39 | #define error(msg, ...) \ 40 | fprintf(stderr, "ERROR %s:%d: " msg "\n", __func__, __LINE__, ##__VA_ARGS__) 41 | 42 | #define errorx(msg, ...) \ 43 | error(msg ": %s", ##__VA_ARGS__, strerror(errno)) 44 | 45 | #endif /* _LOG_H */ 46 | -------------------------------------------------------------------------------- /include/sched.h: -------------------------------------------------------------------------------- 1 | /* 2 | * sched.h - scheduling header 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #ifndef _SCHED_H 20 | #define _SCHED_H 21 | 22 | int sched_init(struct bar *); 23 | void sched_start(struct bar *); 24 | 25 | #endif /* _SCHED_H */ 26 | -------------------------------------------------------------------------------- /scripts/bandwidth: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | # Copyright (C) 2012 Stefan Breunig 3 | # Copyright (C) 2014 kaueraal 4 | # Copyright (C) 2015 Thiago Perrotta 5 | 6 | # This program is free software: you can redistribute it and/or modify 7 | # it under the terms of the GNU General Public License as published by 8 | # the Free Software Foundation, either version 3 of the License, or 9 | # (at your option) any later version. 10 | 11 | # This program is distributed in the hope that it will be useful, 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 | # GNU General Public License for more details. 15 | 16 | # You should have received a copy of the GNU General Public License 17 | # along with this program. If not, see . 18 | 19 | # Get custom IN and OUT labels if provided by command line arguments 20 | while [[ $# -gt 1 ]]; do 21 | key="$1" 22 | case "$key" in 23 | -i|--inlabel) 24 | INLABEL="$2" 25 | shift;; 26 | -o|--outlabel) 27 | OUTLABEL="$2" 28 | shift;; 29 | esac 30 | shift 31 | done 32 | 33 | [[ -z $INLABEL ]] && INLABEL="IN " 34 | [[ -z $OUTLABEL ]] && OUTLABEL="OUT " 35 | 36 | # Use the provided interface, otherwise the device used for the default route. 37 | if [[ -n $BLOCK_INSTANCE ]]; then 38 | INTERFACE=$BLOCK_INSTANCE 39 | else 40 | INTERFACE=$(ip route | awk '/^default/ { print $5 ; exit }') 41 | fi 42 | 43 | # Issue #36 compliant. 44 | if ! [ -e "/sys/class/net/${INTERFACE}/operstate" ] || ! [ "`cat /sys/class/net/${INTERFACE}/operstate`" = "up" ] 45 | then 46 | echo "$INTERFACE down" 47 | echo "$INTERFACE down" 48 | echo "#FF0000" 49 | exit 0 50 | fi 51 | 52 | # path to store the old results in 53 | path="/dev/shm/$(basename $0)-${INTERFACE}" 54 | 55 | # grabbing data for each adapter. 56 | read rx < "/sys/class/net/${INTERFACE}/statistics/rx_bytes" 57 | read tx < "/sys/class/net/${INTERFACE}/statistics/tx_bytes" 58 | 59 | # get time 60 | time=$(date +%s) 61 | 62 | # write current data if file does not exist. Do not exit, this will cause 63 | # problems if this file is sourced instead of executed as another process. 64 | if ! [[ -f "${path}" ]]; then 65 | echo "${time} ${rx} ${tx}" > "${path}" 66 | chmod 0666 "${path}" 67 | fi 68 | 69 | # read previous state and update data storage 70 | read old < "${path}" 71 | echo "${time} ${rx} ${tx}" > "${path}" 72 | 73 | # parse old data and calc time passed 74 | old=(${old//;/ }) 75 | time_diff=$(( $time - ${old[0]} )) 76 | 77 | # sanity check: has a positive amount of time passed 78 | [[ "${time_diff}" -gt 0 ]] || exit 79 | 80 | # calc bytes transferred, and their rate in byte/s 81 | rx_diff=$(( $rx - ${old[1]} )) 82 | tx_diff=$(( $tx - ${old[2]} )) 83 | rx_rate=$(( $rx_diff / $time_diff )) 84 | tx_rate=$(( $tx_diff / $time_diff )) 85 | 86 | # shift by 10 bytes to get KiB/s. If the value is larger than 87 | # 1024^2 = 1048576, then display MiB/s instead 88 | 89 | # incoming 90 | echo -n "$INLABEL" 91 | rx_kib=$(( $rx_rate >> 10 )) 92 | if hash bc 2>/dev/null && [[ "$rx_rate" -gt 1048576 ]]; then 93 | printf '%sM' "`echo "scale=1; $rx_kib / 1024" | bc`" 94 | else 95 | echo -n "${rx_kib}K" 96 | fi 97 | 98 | echo -n " " 99 | 100 | # outgoing 101 | echo -n "$OUTLABEL" 102 | tx_kib=$(( $tx_rate >> 10 )) 103 | if hash bc 2>/dev/null && [[ "$tx_rate" -gt 1048576 ]]; then 104 | printf '%sM' "`echo "scale=1; $tx_kib / 1024" | bc`" 105 | else 106 | echo -n "${tx_kib}K" 107 | fi 108 | -------------------------------------------------------------------------------- /scripts/battery: -------------------------------------------------------------------------------- 1 | #!/usr/bin/perl 2 | # 3 | # Copyright 2014 Pierre Mavro 4 | # Copyright 2014 Vivien Didelot 5 | # 6 | # Licensed under the terms of the GNU GPL v3, or any later version. 7 | # 8 | # This script is meant to use with i3blocks. It parses the output of the "acpi" 9 | # command (often provided by a package of the same name) to read the status of 10 | # the battery, and eventually its remaining time (to full charge or discharge). 11 | # 12 | # The color will gradually change for a percentage below 85%, and the urgency 13 | # (exit code 33) is set if there is less that 5% remaining. 14 | 15 | use strict; 16 | use warnings; 17 | use utf8; 18 | 19 | my $acpi; 20 | my $status; 21 | my $percent; 22 | my $ac_adapt; 23 | my $full_text; 24 | my $short_text; 25 | my $bat_number = $ENV{BLOCK_INSTANCE} || 0; 26 | 27 | # read the first line of the "acpi" command output 28 | open (ACPI, "acpi -b | grep 'Battery $bat_number' |") or die; 29 | $acpi = ; 30 | close(ACPI); 31 | 32 | # fail on unexpected output 33 | if ($acpi !~ /: (\w+), (\d+)%/) { 34 | die "$acpi\n"; 35 | } 36 | 37 | $status = $1; 38 | $percent = $2; 39 | $full_text = "$percent%"; 40 | 41 | if ($status eq 'Discharging') { 42 | $full_text .= ' DIS'; 43 | } elsif ($status eq 'Charging') { 44 | $full_text .= ' CHR'; 45 | } elsif ($status eq 'Unknown') { 46 | open (AC_ADAPTER, "acpi -a |") or die; 47 | $ac_adapt = ; 48 | close(AC_ADAPTER); 49 | 50 | if ($ac_adapt =~ /: ([\w-]+)/) { 51 | $ac_adapt = $1; 52 | 53 | if ($ac_adapt eq 'on-line') { 54 | $full_text .= ' CHR'; 55 | } elsif ($ac_adapt eq 'off-line') { 56 | $full_text .= ' DIS'; 57 | } 58 | } 59 | } 60 | 61 | $short_text = $full_text; 62 | 63 | if ($acpi =~ /(\d\d:\d\d):/) { 64 | $full_text .= " ($1)"; 65 | } 66 | 67 | # print text 68 | print "$full_text\n"; 69 | print "$short_text\n"; 70 | 71 | # consider color and urgent flag only on discharge 72 | if ($status eq 'Discharging') { 73 | 74 | if ($percent < 20) { 75 | print "#FF0000\n"; 76 | } elsif ($percent < 40) { 77 | print "#FFAE00\n"; 78 | } elsif ($percent < 60) { 79 | print "#FFF600\n"; 80 | } elsif ($percent < 85) { 81 | print "#A8FF00\n"; 82 | } 83 | 84 | if ($percent < 5) { 85 | exit(33); 86 | } 87 | } 88 | 89 | exit(0); 90 | -------------------------------------------------------------------------------- /scripts/cpu_usage: -------------------------------------------------------------------------------- 1 | #!/usr/bin/perl 2 | # 3 | # Copyright 2014 Pierre Mavro 4 | # Copyright 2014 Vivien Didelot 5 | # Copyright 2014 Andreas Guldstrand 6 | # 7 | # Licensed under the terms of the GNU GPL v3, or any later version. 8 | 9 | use strict; 10 | use warnings; 11 | use utf8; 12 | use Getopt::Long; 13 | 14 | # default values 15 | my $t_warn = 50; 16 | my $t_crit = 80; 17 | my $cpu_usage = -1; 18 | my $decimals = 2; 19 | 20 | sub help { 21 | print "Usage: cpu_usage [-w ] [-c ] [-d ]\n"; 22 | print "-w : warning threshold to become yellow\n"; 23 | print "-c : critical threshold to become red\n"; 24 | print "-d : Use decimals for percentage (default is $decimals) \n"; 25 | exit 0; 26 | } 27 | 28 | GetOptions("help|h" => \&help, 29 | "w=i" => \$t_warn, 30 | "c=i" => \$t_crit, 31 | "d=i" => \$decimals, 32 | ); 33 | 34 | # Get CPU usage 35 | $ENV{LC_ALL}="en_US"; # if mpstat is not run under en_US locale, things may break, so make sure it is 36 | open (MPSTAT, 'mpstat 1 1 |') or die; 37 | while () { 38 | if (/^.*\s+(\d+\.\d+)\s+$/) { 39 | $cpu_usage = 100 - $1; # 100% - %idle 40 | last; 41 | } 42 | } 43 | close(MPSTAT); 44 | 45 | $cpu_usage eq -1 and die 'Can\'t find CPU information'; 46 | 47 | # Print short_text, full_text 48 | printf "%.${decimals}f%%\n", $cpu_usage; 49 | printf "%.${decimals}f%%\n", $cpu_usage; 50 | 51 | # Print color, if needed 52 | if ($cpu_usage >= $t_crit) { 53 | print "#FF0000\n"; 54 | exit 33; 55 | } elsif ($cpu_usage >= $t_warn) { 56 | print "#FFFC00\n"; 57 | } 58 | 59 | exit 0; 60 | -------------------------------------------------------------------------------- /scripts/disk: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # Copyright (C) 2014 Julien Bonjean 3 | 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | DIR="${BLOCK_INSTANCE:-$HOME}" 18 | ALERT_LOW="${1:-10}" # color will turn red under this value (default: 10%) 19 | 20 | df -h -P -l "$DIR" | awk -v alert_low=$ALERT_LOW ' 21 | /\/.*/ { 22 | # full text 23 | print $4 24 | 25 | # short text 26 | print $4 27 | 28 | use=$5 29 | 30 | # no need to continue parsing 31 | exit 0 32 | } 33 | 34 | END { 35 | gsub(/%$/,"",use) 36 | if (100 - use < alert_low) { 37 | # color 38 | print "#FF0000" 39 | } 40 | } 41 | ' 42 | -------------------------------------------------------------------------------- /scripts/iface: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | # Copyright (C) 2014 Julien Bonjean 3 | # Copyright (C) 2014 Alexander Keller 4 | 5 | # This program is free software: you can redistribute it and/or modify 6 | # it under the terms of the GNU General Public License as published by 7 | # the Free Software Foundation, either version 3 of the License, or 8 | # (at your option) any later version. 9 | 10 | # This program is distributed in the hope that it will be useful, 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | # GNU General Public License for more details. 14 | 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | 18 | #------------------------------------------------------------------------ 19 | 20 | # Use the provided interface, otherwise the device used for the default route. 21 | if [[ -n $BLOCK_INSTANCE ]]; then 22 | IF=$BLOCK_INSTANCE 23 | else 24 | IF=$(ip route | awk '/^default/ { print $5 ; exit }') 25 | fi 26 | 27 | #------------------------------------------------------------------------ 28 | 29 | # As per #36 -- It is transparent: e.g. if the machine has no battery or wireless 30 | # connection (think desktop), the corresponding block should not be displayed. 31 | [[ ! -d /sys/class/net/${IF} ]] && exit 32 | 33 | #------------------------------------------------------------------------ 34 | 35 | if [[ "$(cat /sys/class/net/$IF/operstate)" = 'down' ]]; then 36 | echo down # full text 37 | echo down # short text 38 | echo \#FF0000 # color 39 | exit 40 | fi 41 | 42 | case $1 in 43 | -4) 44 | AF=inet ;; 45 | -6) 46 | AF=inet6 ;; 47 | *) 48 | AF=inet6? ;; 49 | esac 50 | 51 | # if no interface is found, use the first device with a global scope 52 | IPADDR=$(ip addr show $IF | perl -n -e "/$AF ([^\/]+).* scope global/ && print \$1 and exit") 53 | 54 | case $BLOCK_BUTTON in 55 | 3) echo -n "$IPADDR" | xclip -q -se c ;; 56 | esac 57 | 58 | #------------------------------------------------------------------------ 59 | 60 | echo "$IPADDR" # full text 61 | echo "$IPADDR" # short text 62 | -------------------------------------------------------------------------------- /scripts/load_average: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # Copyright (C) 2014 Julien Bonjean 3 | 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | load="$(cut -d ' ' -f1 /proc/loadavg)" 18 | cpus="$(nproc)" 19 | 20 | # full text 21 | echo "$load" 22 | 23 | # short text 24 | echo "$load" 25 | 26 | # color if load is too high 27 | awk -v cpus=$cpus -v cpuload=$load ' 28 | BEGIN { 29 | if (cpus <= cpuload) { 30 | print "#FF0000"; 31 | exit 33; 32 | } 33 | } 34 | ' 35 | -------------------------------------------------------------------------------- /scripts/memory: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | # Copyright (C) 2014 Julien Bonjean 3 | 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | TYPE="${BLOCK_INSTANCE:-mem}" 18 | 19 | awk -v type=$TYPE ' 20 | /^MemTotal:/ { 21 | mem_total=$2 22 | } 23 | /^MemFree:/ { 24 | mem_free=$2 25 | } 26 | /^Buffers:/ { 27 | mem_free+=$2 28 | } 29 | /^Cached:/ { 30 | mem_free+=$2 31 | } 32 | /^SwapTotal:/ { 33 | swap_total=$2 34 | } 35 | /^SwapFree:/ { 36 | swap_free=$2 37 | } 38 | END { 39 | if (type == "swap") { 40 | free=swap_free/1024/1024 41 | used=(swap_total-swap_free)/1024/1024 42 | total=swap_total/1024/1024 43 | } else { 44 | free=mem_free/1024/1024 45 | used=(mem_total-mem_free)/1024/1024 46 | total=mem_total/1024/1024 47 | } 48 | pct=used/total*100 49 | 50 | # full text 51 | printf("%.1fG/%.1fG (%.f%%)\n", used, total, pct) 52 | 53 | # short text 54 | printf("%.f%%\n", pct) 55 | 56 | # color 57 | if (pct > 90) { 58 | print("#FF0000\n") 59 | } else if (pct > 80) { 60 | print("#FFAE00\n") 61 | } else if (pct > 70) { 62 | print("#FFF600\n") 63 | } 64 | } 65 | ' /proc/meminfo 66 | -------------------------------------------------------------------------------- /scripts/volume: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | # Copyright (C) 2014 Julien Bonjean 3 | # Copyright (C) 2014 Alexander Keller 4 | 5 | # This program is free software: you can redistribute it and/or modify 6 | # it under the terms of the GNU General Public License as published by 7 | # the Free Software Foundation, either version 3 of the License, or 8 | # (at your option) any later version. 9 | 10 | # This program is distributed in the hope that it will be useful, 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | # GNU General Public License for more details. 14 | 15 | # You should have received a copy of the GNU General Public License 16 | # along with this program. If not, see . 17 | 18 | #------------------------------------------------------------------------ 19 | 20 | # The second parameter overrides the mixer selection 21 | # For PulseAudio users, use "pulse" 22 | # For Jack/Jack2 users, use "jackplug" 23 | # For ALSA users, you may use "default" for your primary card 24 | # or you may use hw:# where # is the number of the card desired 25 | MIXER="default" 26 | [ -n "$(lsmod | grep pulse)" ] && MIXER="pulse" 27 | [ -n "$(lsmod | grep jack)" ] && MIXER="jackplug" 28 | MIXER="${2:-$MIXER}" 29 | 30 | # The instance option sets the control to report and configure 31 | # This defaults to the first control of your selected mixer 32 | # For a list of the available, use `amixer -D $Your_Mixer scontrols` 33 | SCONTROL="${BLOCK_INSTANCE:-$(amixer -D $MIXER scontrols | 34 | sed -n "s/Simple mixer control '\([A-Za-z ]*\)',0/\1/p" | 35 | head -n1 36 | )}" 37 | 38 | # The first parameter sets the step to change the volume by (and units to display) 39 | # This may be in in % or dB (eg. 5% or 3dB) 40 | STEP="${1:-5%}" 41 | 42 | #------------------------------------------------------------------------ 43 | 44 | capability() { # Return "Capture" if the device is a capture device 45 | amixer -D $MIXER get $SCONTROL | 46 | sed -n "s/ Capabilities:.*cvolume.*/Capture/p" 47 | } 48 | 49 | volume() { 50 | amixer -D $MIXER get $SCONTROL $(capability) 51 | } 52 | 53 | format() { 54 | perl_filter='if (/.*\[(\d+%)\] (\[(-?\d+.\d+dB)\] )?\[(on|off)\]/)' 55 | perl_filter+='{CORE::say $4 eq "off" ? "MUTE" : "' 56 | # If dB was selected, print that instead 57 | perl_filter+=$([[ $STEP = *dB ]] && echo '$3' || echo '$1') 58 | perl_filter+='"; exit}' 59 | perl -ne "$perl_filter" 60 | } 61 | 62 | #------------------------------------------------------------------------ 63 | 64 | case $BLOCK_BUTTON in 65 | 3) amixer -q -D $MIXER sset $SCONTROL $(capability) toggle ;; # right click, mute/unmute 66 | 4) amixer -q -D $MIXER sset $SCONTROL $(capability) ${STEP}+ unmute ;; # scroll up, increase 67 | 5) amixer -q -D $MIXER sset $SCONTROL $(capability) ${STEP}- unmute ;; # scroll down, decrease 68 | esac 69 | 70 | volume | format 71 | -------------------------------------------------------------------------------- /scripts/wifi: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | # Copyright (C) 2014 Alexander Keller 3 | 4 | # This program is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | 9 | # This program is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | 14 | # You should have received a copy of the GNU General Public License 15 | # along with this program. If not, see . 16 | 17 | #------------------------------------------------------------------------ 18 | 19 | INTERFACE="${BLOCK_INSTANCE:-wlan0}" 20 | 21 | #------------------------------------------------------------------------ 22 | 23 | # As per #36 -- It is transparent: e.g. if the machine has no battery or wireless 24 | # connection (think desktop), the corresponding block should not be displayed. 25 | [[ ! -d /sys/class/net/${INTERFACE}/wireless ]] || 26 | [[ "$(cat /sys/class/net/$INTERFACE/operstate)" = 'down' ]] && exit 27 | 28 | #------------------------------------------------------------------------ 29 | 30 | QUALITY=$(grep $INTERFACE /proc/net/wireless | awk '{ print int($3 * 100 / 70) }') 31 | 32 | #------------------------------------------------------------------------ 33 | 34 | echo $QUALITY% # full text 35 | echo $QUALITY% # short text 36 | 37 | # color 38 | if [[ $QUALITY -ge 80 ]]; then 39 | echo "#00FF00" 40 | elif [[ $QUALITY -ge 60 ]]; then 41 | echo "#FFF600" 42 | elif [[ $QUALITY -ge 40 ]]; then 43 | echo "#FFAE00" 44 | else 45 | echo "#FF0000" 46 | fi 47 | -------------------------------------------------------------------------------- /src/.gitignore: -------------------------------------------------------------------------------- 1 | *.o 2 | -------------------------------------------------------------------------------- /src/bar.c: -------------------------------------------------------------------------------- 1 | /* 2 | * bar.c - status line handling functions 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #include 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | #include 26 | 27 | #include "bar.h" 28 | #include "block.h" 29 | #include "click.h" 30 | #include "io.h" 31 | #include "log.h" 32 | 33 | void 34 | bar_poll_timed(struct bar *bar) 35 | { 36 | for (int i = 0; i < bar->num; ++i) { 37 | struct block *block = bar->blocks + i; 38 | 39 | /* spawn unless it is only meant for click or signal */ 40 | if (block->interval != 0) 41 | block_spawn(block, NULL); 42 | } 43 | } 44 | 45 | void 46 | bar_poll_clicked(struct bar *bar) 47 | { 48 | char json[1024] = { 0 }; 49 | 50 | while (io_readline(STDIN_FILENO, json, sizeof(json)) > 0) { 51 | struct click click; 52 | 53 | /* find the corresponding block */ 54 | click_parse(json, &click); 55 | if (!*click.name && !*click.instance) 56 | continue; 57 | 58 | for (int i = 0; i < bar->num; ++i) { 59 | struct block *block = bar->blocks + i; 60 | 61 | if (strcmp(NAME(block), click.name) == 0 && strcmp(INSTANCE(block), click.instance) == 0) { 62 | bdebug(block, "clicked"); 63 | block_spawn(block, &click); 64 | break; /* Unlikely to click several blocks */ 65 | } 66 | } 67 | } 68 | } 69 | 70 | void 71 | bar_poll_outdated(struct bar *bar) 72 | { 73 | for (int i = 0; i < bar->num; ++i) { 74 | struct block *block = bar->blocks + i; 75 | 76 | if (block->interval > 0) { 77 | const unsigned long now = time(NULL); 78 | const unsigned long next_update = block->timestamp + block->interval; 79 | 80 | if (((long) (next_update - now)) <= 0) { 81 | bdebug(block, "outdated"); 82 | block_spawn(block, NULL); 83 | } 84 | } 85 | } 86 | } 87 | 88 | void 89 | bar_poll_signaled(struct bar *bar, int sig) 90 | { 91 | for (int i = 0; i < bar->num; ++i) { 92 | struct block *block = bar->blocks + i; 93 | 94 | if (block->signal == sig) { 95 | bdebug(block, "signaled"); 96 | block_spawn(block, NULL); 97 | } 98 | } 99 | } 100 | 101 | void 102 | bar_poll_exited(struct bar *bar) 103 | { 104 | for (;;) { 105 | siginfo_t infop = { 0 }; 106 | 107 | /* Non-blocking check for dead child(ren) */ 108 | if (waitid(P_ALL, 0, &infop, WEXITED | WNOHANG | WNOWAIT) == -1) 109 | if (errno != ECHILD) 110 | errorx("waitid"); 111 | 112 | /* Error or no (dead yet) child(ren) */ 113 | if (infop.si_pid == 0) 114 | break; 115 | 116 | /* Find the dead process */ 117 | for (int i = 0; i < bar->num; ++i) { 118 | struct block *block = bar->blocks + i; 119 | 120 | if (block->pid == infop.si_pid) { 121 | bdebug(block, "exited"); 122 | block_reap(block); 123 | if (block->interval == INTER_REPEAT) { 124 | if (block->timestamp == time(NULL)) 125 | berror(block, "loop too fast"); 126 | block_spawn(block, NULL); 127 | } else if (block->interval == INTER_PERSIST) { 128 | bdebug(block, "unexpected exit?"); 129 | } 130 | break; 131 | } 132 | } 133 | } 134 | } 135 | 136 | void 137 | bar_poll_readable(struct bar *bar, const int fd) 138 | { 139 | for (int i = 0; i < bar->num; ++i) { 140 | struct block *block = bar->blocks + i; 141 | 142 | if (block->out == fd) { 143 | bdebug(block, "readable"); 144 | block_update(block); 145 | break; 146 | } 147 | } 148 | } 149 | -------------------------------------------------------------------------------- /src/block.c: -------------------------------------------------------------------------------- 1 | /* 2 | * block.c - update of a single status line block 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #include 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | #include 28 | 29 | #include "block.h" 30 | #include "click.h" 31 | #include "io.h" 32 | #include "json.h" 33 | #include "log.h" 34 | 35 | static void 36 | child_setenv(struct block *block, const char *name, const char *value) 37 | { 38 | if (setenv(name, value, 1) == -1) { 39 | berrorx(block, "setenv(%s=%s)", name, value); 40 | _exit(EXIT_ERR_INTERNAL); 41 | } 42 | } 43 | 44 | static void 45 | child_setup_env(struct block *block, struct click *click) 46 | { 47 | child_setenv(block, "BLOCK_NAME", NAME(block)); 48 | child_setenv(block, "BLOCK_INSTANCE", INSTANCE(block)); 49 | child_setenv(block, "BLOCK_INTERVAL", INTERVAL(block)); 50 | child_setenv(block, "BLOCK_BUTTON", click ? click->button : ""); 51 | child_setenv(block, "BLOCK_X", click ? click->x : ""); 52 | child_setenv(block, "BLOCK_Y", click ? click->y : ""); 53 | } 54 | 55 | static void 56 | child_reset_signals(struct block *block) 57 | { 58 | sigset_t set; 59 | 60 | if (sigfillset(&set) == -1) { 61 | berrorx(block, "sigfillset"); 62 | _exit(EXIT_ERR_INTERNAL); 63 | } 64 | 65 | /* It should be safe to assume that all signals are unblocked by default */ 66 | if (sigprocmask(SIG_UNBLOCK, &set, NULL) == -1) { 67 | berrorx(block, "sigprocmask"); 68 | _exit(EXIT_ERR_INTERNAL); 69 | } 70 | } 71 | 72 | static void 73 | child_redirect_write(struct block *block, int pipe[2], int fd) 74 | { 75 | if (close(pipe[0]) == -1) { 76 | berrorx(block, "close pipe read end"); 77 | _exit(EXIT_ERR_INTERNAL); 78 | } 79 | 80 | /* Defensive check */ 81 | if (pipe[1] == fd) 82 | return; 83 | 84 | if (dup2(pipe[1], fd) == -1) { 85 | berrorx(block, "dup pipe write end"); 86 | _exit(EXIT_ERR_INTERNAL); 87 | } 88 | 89 | if (close(pipe[1]) == -1) { 90 | berrorx(block, "close pipe write end"); 91 | _exit(EXIT_ERR_INTERNAL); 92 | } 93 | } 94 | 95 | static void 96 | child_exec(struct block *block) 97 | { 98 | static const char * const shell = "/bin/sh"; 99 | 100 | execl(shell, shell, "-c", COMMAND(block), (char *) NULL); 101 | /* Unlikely to reach this point */ 102 | berrorx(block, "exec(%s -c %s)", shell, COMMAND(block)); 103 | _exit(EXIT_ERR_INTERNAL); 104 | } 105 | 106 | static void 107 | block_dump_stderr(struct block *block) 108 | { 109 | char buf[2048] = { 0 }; 110 | 111 | /* Note read(2) returns 0 for end-of-pipe */ 112 | if (read(block->err, buf, sizeof(buf) - 1) == -1) { 113 | berrorx(block, "read stderr"); 114 | return; 115 | } 116 | 117 | if (*buf) 118 | bdebug(block, "stderr:\n{\n%s\n}", buf); 119 | } 120 | 121 | static void 122 | linecpy(char **lines, char *dest, size_t size) 123 | { 124 | char *newline = strchr(*lines, '\n'); 125 | 126 | /* split if there's a newline */ 127 | if (newline) 128 | *newline = '\0'; 129 | 130 | strncpy(dest, *lines, size); 131 | *lines += strlen(dest); 132 | 133 | /* increment if next char is non-null */ 134 | if (*(*lines + 1)) 135 | *lines += 1; 136 | } 137 | 138 | static void 139 | mark_as_failed(struct block *block, const char *reason) 140 | { 141 | if (log_level < LOG_WARN) 142 | return; 143 | 144 | struct properties *props = &block->updated_props; 145 | 146 | memset(props, 0, sizeof(struct properties)); 147 | strcpy(props->name, NAME(block)); 148 | strcpy(props->instance, INSTANCE(block)); 149 | snprintf(props->full_text, sizeof(props->full_text), "[%s] %s", NAME(block), reason); 150 | snprintf(props->short_text, sizeof(props->short_text), "[%s] ERROR", NAME(block)); 151 | strcpy(props->color, "#FF0000"); 152 | strcpy(props->urgent, "true"); 153 | } 154 | 155 | static void 156 | block_update_plain_text(struct block *block, char *buf) 157 | { 158 | struct properties *props = &block->updated_props; 159 | char *lines = buf; 160 | 161 | linecpy(&lines, props->full_text, sizeof(props->full_text) - 1); 162 | if (block->interval == INTER_PERSIST) 163 | return; 164 | 165 | linecpy(&lines, props->short_text, sizeof(props->short_text) - 1); 166 | if (*lines) 167 | linecpy(&lines, props->color, sizeof(props->color) - 1); 168 | } 169 | 170 | static void 171 | block_update_json(struct block *block, char *buf) 172 | { 173 | struct properties *props = &block->updated_props; 174 | int start, length, size; 175 | 176 | #define PARSE(_name, _size, _flags) \ 177 | if ((_flags) & PROP_I3BAR) { \ 178 | json_parse(buf, #_name, &start, &length); \ 179 | if (start > 0) { \ 180 | size = _size - 1 < length ? _size - 1 : length; \ 181 | strncpy(props->_name, buf + start, size); \ 182 | props->_name[size] = '\0'; \ 183 | } \ 184 | } 185 | 186 | PROPERTIES(PARSE); 187 | 188 | #undef PARSE 189 | } 190 | 191 | void 192 | block_update(struct block *block) 193 | { 194 | struct properties *props = &block->updated_props; 195 | char buf[2048] = { 0 }; 196 | int nr; 197 | 198 | /* Read a single line for persistent block, everything otherwise */ 199 | if (block->interval == INTER_PERSIST) { 200 | nr = io_readline(block->out, buf, sizeof(buf)); 201 | if (nr < 0) { 202 | berror(block, "failed to read a line"); 203 | return mark_as_failed(block, "failed to read"); 204 | } else if (nr == 0) { 205 | berror(block, "pipe closed"); 206 | return mark_as_failed(block, "pipe closed"); 207 | } 208 | } else { 209 | /* Note: read(2) returns 0 for end-of-pipe */ 210 | if (read(block->out, buf, sizeof(buf) - 1) == -1) { 211 | berrorx(block, "read stdout"); 212 | return mark_as_failed(block, strerror(errno)); 213 | } 214 | } 215 | 216 | /* Reset the defaults and merge the output */ 217 | memcpy(props, &block->default_props, sizeof(struct properties)); 218 | 219 | if (block->format == FORMAT_JSON) 220 | block_update_json(block, buf); 221 | else 222 | block_update_plain_text(block, buf); 223 | 224 | if (*FULL_TEXT(block) && *LABEL(block)) { 225 | static const size_t size = sizeof(props->full_text); 226 | char concat[size]; 227 | snprintf(concat, size, "%s %s", LABEL(block), FULL_TEXT(block)); 228 | strcpy(props->full_text, concat); 229 | } 230 | 231 | bdebug(block, "updated successfully"); 232 | } 233 | 234 | void 235 | block_spawn(struct block *block, struct click *click) 236 | { 237 | const unsigned long now = time(NULL); 238 | int out[2], err[2]; 239 | 240 | if (!*COMMAND(block)) { 241 | bdebug(block, "no command, skipping"); 242 | return; 243 | } 244 | 245 | if (block->pid > 0) { 246 | bdebug(block, "process already spawned"); 247 | return; 248 | } 249 | 250 | if (pipe(out) == -1 || pipe(err) == -1) { 251 | berrorx(block, "pipe"); 252 | return mark_as_failed(block, strerror(errno)); 253 | } 254 | 255 | if (block->interval == INTER_PERSIST) { 256 | if (io_signal(out[0], SIGRTMIN)) 257 | return mark_as_failed(block, "event I/O impossible"); 258 | } 259 | 260 | block->pid = fork(); 261 | if (block->pid == -1) { 262 | berrorx(block, "fork"); 263 | return mark_as_failed(block, strerror(errno)); 264 | } 265 | 266 | /* Child? */ 267 | if (block->pid == 0) { 268 | /* Error messages are merged into the parent's stderr... */ 269 | child_setup_env(block, click); 270 | child_reset_signals(block); 271 | child_redirect_write(block, out, STDOUT_FILENO); 272 | child_redirect_write(block, err, STDERR_FILENO); 273 | /* ... until here */ 274 | child_exec(block); 275 | } 276 | 277 | /* 278 | * Note: for non-persistent blocks, no need to set the pipe read end as 279 | * non-blocking, since it is meant to be read once the child has exited 280 | * (and thus the write end is closed and read is available). 281 | */ 282 | 283 | /* Parent */ 284 | if (close(out[1]) == -1) 285 | berrorx(block, "close stdout"); 286 | if (close(err[1]) == -1) 287 | berrorx(block, "close stderr"); 288 | 289 | block->out = out[0]; 290 | block->err = err[0]; 291 | 292 | if (!click) 293 | block->timestamp = now; 294 | 295 | bdebug(block, "forked child %d at %ld", block->pid, now); 296 | } 297 | 298 | void 299 | block_reap(struct block *block) 300 | { 301 | int status, code; 302 | 303 | if (block->pid <= 0) { 304 | bdebug(block, "not spawned yet"); 305 | return; 306 | } 307 | 308 | if (waitpid(block->pid, &status, 0) == -1) { 309 | berrorx(block, "waitpid(%d)", block->pid); 310 | mark_as_failed(block, strerror(errno)); 311 | goto close; 312 | } 313 | 314 | code = WEXITSTATUS(status); 315 | bdebug(block, "process %d exited with %d", block->pid, code); 316 | 317 | /* Process successfully reaped, reset the block PID */ 318 | block->pid = 0; 319 | 320 | block_dump_stderr(block); 321 | 322 | if (code != 0 && code != EXIT_URGENT) { 323 | char reason[32]; 324 | 325 | if (code == EXIT_ERR_INTERNAL) 326 | sprintf(reason, "internal error"); 327 | else 328 | sprintf(reason, "bad exit code %d", code); 329 | 330 | berror(block, "%s", reason); 331 | mark_as_failed(block, reason); 332 | goto close; 333 | } 334 | 335 | /* Do not update unless it was meant to terminate */ 336 | if (block->interval == INTER_PERSIST) 337 | goto close; 338 | 339 | block_update(block); 340 | 341 | /* Exit code takes precedence over the output */ 342 | if (code == EXIT_URGENT) 343 | strcpy(block->updated_props.urgent, "true"); 344 | close: 345 | if (close(block->out) == -1) 346 | berrorx(block, "close stdout"); 347 | if (close(block->err) == -1) 348 | berrorx(block, "close stderr"); 349 | 350 | /* Invalidate descriptors to avoid misdetection after reassignment */ 351 | block->out = block->err = -1; 352 | } 353 | 354 | void block_setup(struct block *block) 355 | { 356 | struct properties *defaults = &block->default_props; 357 | struct properties *updated = &block->updated_props; 358 | 359 | /* Convenient shortcuts */ 360 | if (strcmp(defaults->interval, "once") == 0) 361 | block->interval = INTER_ONCE; 362 | else if (strcmp(defaults->interval, "repeat") == 0) 363 | block->interval = INTER_REPEAT; 364 | else if (strcmp(defaults->interval, "persist") == 0) 365 | block->interval = INTER_PERSIST; 366 | else 367 | block->interval = atoi(defaults->interval); 368 | 369 | if (strcmp(defaults->format, "json") == 0) 370 | block->format = FORMAT_JSON; 371 | else 372 | block->format = FORMAT_PLAIN; 373 | 374 | block->signal = atoi(defaults->signal); 375 | 376 | /* First update (for static blocks and loading labels) */ 377 | memcpy(updated, defaults, sizeof(struct properties)); 378 | 379 | #define PLACEHOLDERS(_name, _size, _flags) " %s: \"%s\"\n" 380 | #define ARGS(_name, _size, _flags) #_name, updated->_name, 381 | 382 | debug("\n{\n" PROPERTIES(PLACEHOLDERS) "%s", PROPERTIES(ARGS) "}"); 383 | 384 | #undef ARGS 385 | #undef PLACEHOLDERS 386 | } 387 | -------------------------------------------------------------------------------- /src/click.c: -------------------------------------------------------------------------------- 1 | /* 2 | * click.c - read and parse of a click 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #include "click.h" 20 | #include "json.h" 21 | #include "log.h" 22 | 23 | /* 24 | * Parse a click, previous read from stdin. 25 | * 26 | * A click looks like this ("name" and "instance" can be absent): 27 | * 28 | * ',{"name":"foo","instance":"bar","button":1,"x":1186,"y":13}\n' 29 | * 30 | * Note that this function is non-idempotent. We need to parse from right to 31 | * left. It's ok since the JSON layout is known and fixed. 32 | */ 33 | void 34 | click_parse(char *json, struct click *click) 35 | { 36 | int nst, nlen; 37 | int ist, ilen; 38 | int bst, blen; 39 | int xst, xlen; 40 | int yst, ylen; 41 | 42 | json_parse(json, "y", &yst, &ylen); 43 | json_parse(json, "x", &xst, &xlen); 44 | json_parse(json, "button", &bst, &blen); 45 | json_parse(json, "instance", &ist, &ilen); 46 | json_parse(json, "name", &nst, &nlen); 47 | 48 | click->name = json + nst; 49 | *(click->name + nlen) = '\0'; 50 | 51 | click->instance = json + ist; 52 | *(click->instance + ilen) = '\0'; 53 | 54 | click->button = json + bst; 55 | *(click->button + blen) = '\0'; 56 | 57 | click->y = json + yst; 58 | *(click->y + ylen) = '\0'; 59 | 60 | click->x = json + xst; 61 | *(click->x + xlen) = '\0'; 62 | 63 | debug("parsed click: name=%s instance=%s button=%s x=%s y=%s", 64 | click->name, click->instance, 65 | click->button, click->x, click->y); 66 | } 67 | -------------------------------------------------------------------------------- /src/ini.c: -------------------------------------------------------------------------------- 1 | /* 2 | * ini.c - parsing of the INI configuration file 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #include 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | 26 | #include "bar.h" 27 | #include "block.h" 28 | #include "log.h" 29 | 30 | #ifndef SYSCONFDIR 31 | #define SYSCONFDIR "/etc" 32 | #endif 33 | 34 | static struct block * 35 | add_block(struct bar *bar) 36 | { 37 | struct block *block = NULL; 38 | void *reloc; 39 | 40 | reloc = realloc(bar->blocks, sizeof(struct block) * (bar->num + 1)); 41 | if (reloc) { 42 | bar->blocks = reloc; 43 | block = bar->blocks + bar->num; 44 | bar->num++; 45 | } 46 | 47 | return block; 48 | } 49 | 50 | static int 51 | parse_section(const char *line, char *name, unsigned int size) 52 | { 53 | char *closing = strchr(line, ']'); 54 | const int len = strlen(line); 55 | 56 | /* stop if the last char is not a closing bracket */ 57 | if (!closing || line + len - 1 != closing) { 58 | error("malformated section \"%s\"", line); 59 | return 1; 60 | } 61 | 62 | if (size - 1 < len - 2) { 63 | error("section name too long \"%s\"", line); 64 | return 1; 65 | } 66 | 67 | memcpy(name, line + 1, len - 2); 68 | name[len - 2] = '\0'; 69 | return 0; 70 | } 71 | 72 | static int 73 | parse_property(const char *line, struct properties *props, bool strict) 74 | { 75 | char *equal = strchr(line, '='); 76 | const char *key, *value; 77 | 78 | if (!equal) { 79 | error("malformated property, should be a key=value pair"); 80 | return 1; 81 | } 82 | 83 | /* split key and value */ 84 | *equal = '\0'; 85 | key = line; 86 | value = equal + 1; 87 | 88 | #define PARSE(_name, _size, _flags) \ 89 | if ((!strict || (_flags) & PROP_I3BAR) && strcmp(key, #_name) == 0) { \ 90 | strncpy(props->_name, value, _size - 1); \ 91 | return 0; \ 92 | } 93 | 94 | PROPERTIES(PARSE); 95 | 96 | #undef PARSE 97 | 98 | error("unknown key: \"%s\"", key); 99 | return 1; 100 | } 101 | 102 | static struct bar * 103 | parse_bar(FILE *fp) 104 | { 105 | char line[2048]; 106 | struct block *block = NULL; 107 | struct block global = {}; 108 | struct bar *bar; 109 | 110 | bar = calloc(1, sizeof(struct bar)); 111 | if (!bar) 112 | return NULL; 113 | 114 | while (fgets(line, sizeof(line), fp) != NULL) { 115 | int len = strlen(line); 116 | 117 | if (line[len - 1] != '\n') { 118 | error("line \"%s\" is not terminated by a newline", line); 119 | goto free; 120 | } 121 | line[len - 1] = '\0'; 122 | 123 | switch (*line) { 124 | /* Comment or empty line? */ 125 | case '#': 126 | case '\0': 127 | break; 128 | 129 | /* Section? */ 130 | case '[': 131 | /* Finalize previous block */ 132 | if (block) 133 | block_setup(block); 134 | 135 | block = add_block(bar); 136 | if (!block) 137 | goto free; 138 | 139 | /* Init the block with default settings (if any) */ 140 | memcpy(block, &global, sizeof(struct block)); 141 | 142 | if (parse_section(line, block->default_props.name, sizeof(block->default_props.name))) 143 | goto free; 144 | 145 | bdebug(block, "new block"); 146 | break; 147 | 148 | /* Property? */ 149 | case 'a' ... 'z': 150 | if (!block) { 151 | debug("parsing global properties"); 152 | block = &global; 153 | } 154 | 155 | if (parse_property(line, &block->default_props, false)) 156 | goto free; 157 | 158 | break; 159 | 160 | /* Syntax error */ 161 | default: 162 | error("malformated line: %s", line); 163 | goto free; 164 | } 165 | } 166 | 167 | /* Finalize the last block */ 168 | if (block) 169 | block_setup(block); 170 | 171 | return bar; 172 | 173 | free: 174 | free(bar->blocks); 175 | free(bar); 176 | return NULL; 177 | } 178 | 179 | static struct bar * 180 | try_parse(const char *path, bool *found) 181 | { 182 | struct bar *bar = NULL; 183 | bool noent = false; 184 | FILE *fp = fopen(path, "r"); 185 | 186 | debug("try file %s", path); 187 | 188 | if (!fp) { 189 | if (errno == ENOENT && found) 190 | noent = true; 191 | else 192 | errorx("fopen"); 193 | } else { 194 | bar = parse_bar(fp); 195 | 196 | if (fclose(fp)) 197 | errorx("fclose"); 198 | } 199 | 200 | if (found) 201 | *found = !noent; 202 | 203 | return bar; 204 | } 205 | 206 | struct bar * 207 | ini_load(const char *inifile) 208 | { 209 | const char * const home = getenv("HOME"); 210 | const char * const xdg_home = getenv("XDG_CONFIG_HOME"); 211 | const char * const xdg_dirs = getenv("XDG_CONFIG_DIRS"); 212 | char buf[PATH_MAX]; 213 | struct bar *bar; 214 | bool found; 215 | 216 | /* command line config file? */ 217 | if (inifile) 218 | return try_parse(inifile, NULL); 219 | 220 | /* user config file? */ 221 | if (home) { 222 | if (xdg_home) 223 | snprintf(buf, PATH_MAX, "%s/i3blocks/config", xdg_home); 224 | else 225 | snprintf(buf, PATH_MAX, "%s/.config/i3blocks/config", home); 226 | bar = try_parse(buf, &found); 227 | if (found) 228 | return bar; 229 | 230 | snprintf(buf, PATH_MAX, "%s/.i3blocks.conf", home); 231 | bar = try_parse(buf, &found); 232 | if (found) 233 | return bar; 234 | } 235 | 236 | /* system config file? */ 237 | if (xdg_dirs) 238 | snprintf(buf, PATH_MAX, "%s/i3blocks/config", xdg_dirs); 239 | else 240 | snprintf(buf, PATH_MAX, "%s/xdg/i3blocks/config", SYSCONFDIR); 241 | bar = try_parse(buf, &found); 242 | if (found) 243 | return bar; 244 | 245 | snprintf(buf, PATH_MAX, "%s/i3blocks.conf", SYSCONFDIR); 246 | return try_parse(buf, NULL); 247 | } 248 | -------------------------------------------------------------------------------- /src/io.c: -------------------------------------------------------------------------------- 1 | /* 2 | * io.c - non-blocking I/O operations 3 | * Copyright (C) 2015 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #define _GNU_SOURCE /* for F_SETSIG */ 20 | 21 | #include 22 | #include 23 | 24 | #include "log.h" 25 | 26 | int 27 | io_signal(int fd, int sig) 28 | { 29 | int flags; 30 | 31 | /* Assign the signal for this file descriptor */ 32 | if (fcntl(fd, F_SETSIG, sig) == -1) { 33 | errorx("failed to set signal %d on fd %d", sig, fd); 34 | return 1; 35 | } 36 | 37 | /* Set owner process that is to receive "I/O possible" signal */ 38 | if (fcntl(fd, F_SETOWN, getpid()) == -1) { 39 | errorx("failed to set process as owner of fd %d", fd); 40 | return 1; 41 | } 42 | 43 | flags = fcntl(fd, F_GETFL); 44 | if (flags == -1) { 45 | errorx("failed to get flags of fd %d", fd); 46 | return 1; 47 | } 48 | 49 | /* Enable "I/O possible" signaling and make I/O nonblocking */ 50 | if (fcntl(fd, F_SETFL, flags | O_ASYNC | O_NONBLOCK) == -1) { 51 | errorx("failed to enable I/O signaling for fd %d", fd); 52 | return 1; 53 | } 54 | 55 | return 0; 56 | } 57 | 58 | static ssize_t 59 | read_nonblock(int fd, char *buf, size_t size) 60 | { 61 | ssize_t nr; 62 | 63 | nr = read(fd, buf, size); 64 | if (nr == -1) { 65 | if (errno == EAGAIN) { 66 | /* no more reading */ 67 | return 0; 68 | } 69 | 70 | errorx("read from %d", fd); 71 | return -1; 72 | } 73 | 74 | /* Note read(2) returns 0 for end-of-pipe */ 75 | return nr; 76 | } 77 | 78 | int 79 | io_readline(int fd, char *buffer, size_t size) 80 | { 81 | int nr = 0; 82 | char c; 83 | 84 | while (nr < size && read_nonblock(fd, &c, 1) > 0) { 85 | buffer[nr++] = c; 86 | if (c == '\n') 87 | break; 88 | } 89 | 90 | return nr; 91 | } 92 | -------------------------------------------------------------------------------- /src/json.c: -------------------------------------------------------------------------------- 1 | /* 2 | * json.c - basic JSON parsing and printing 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #include 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | 26 | #include "bar.h" 27 | #include "block.h" 28 | 29 | static inline bool 30 | is_number(const char *str) 31 | { 32 | char *end; 33 | 34 | strtoul(str, &end, 10); 35 | 36 | /* not a valid number if end is not a null character */ 37 | return !(*str == 0 || *end != 0); 38 | } 39 | 40 | static inline void 41 | escape(const char *str) 42 | { 43 | fprintf(stdout, "\""); 44 | 45 | while (*str) { 46 | switch (*str) { 47 | case '"': 48 | case '\\': 49 | fprintf(stdout, "\\%c", *str); 50 | break; 51 | default: 52 | fprintf(stdout, "%c", *str); 53 | } 54 | 55 | str++; 56 | } 57 | 58 | fprintf(stdout, "\""); 59 | } 60 | 61 | static void 62 | print_prop(const char *key, const char *value, int flags) 63 | { 64 | /* Only print i3bar-specific properties */ 65 | if (!(flags & PROP_I3BAR)) 66 | return; 67 | 68 | if (!*value) 69 | return; 70 | 71 | fprintf(stdout, ",\"%s\":", key); 72 | 73 | /* Print as-is (except strings which must be escaped) */ 74 | if (flags & PROP_STRING && flags & PROP_NUMBER && is_number(value)) 75 | fprintf(stdout, "%s", value); 76 | else if (flags & PROP_STRING) 77 | escape(value); 78 | else 79 | fprintf(stdout, "%s", value); 80 | } 81 | 82 | static void 83 | print_block(struct block *block) 84 | { 85 | #define PRINT(_name, _size, _flags) \ 86 | print_prop(#_name, block->updated_props._name, _flags); \ 87 | 88 | fprintf(stdout, ",{\"\":\"\""); 89 | PROPERTIES(PRINT); 90 | fprintf(stdout, "}"); 91 | 92 | #undef PRINT 93 | } 94 | 95 | /* 96 | * Parse the input for the key and store the start of its value 97 | * into and its size into . 98 | * 99 | * set to 0 means that the key was not present. 100 | */ 101 | void 102 | json_parse(const char *json, const char *name, int *start, int *len) 103 | { 104 | const size_t keylen = strlen(name) + 2; 105 | char key[keylen + 1]; 106 | snprintf(key, sizeof(key), "\"%s\"", name); 107 | 108 | *start = *len = 0; 109 | 110 | char *here = strstr(json, key); 111 | if (here) { 112 | here += keylen + 1; 113 | 114 | /* skip pre-value whitespace */ 115 | while (isspace(*here)) 116 | here++; 117 | 118 | if (*here == '"') { 119 | /* string */ 120 | here++; 121 | *start = here - json; 122 | while (*here && *here != '"') 123 | *len += 1, here++; 124 | 125 | /* invalidate on incomplete string */ 126 | if (*here != '"') 127 | *start = 0; 128 | } else { 129 | /* number */ 130 | *start = here - json; 131 | while (isdigit(*here++)) 132 | *len += 1; 133 | } 134 | } 135 | } 136 | 137 | void 138 | json_print_bar(struct bar *bar) 139 | { 140 | fprintf(stdout, ",[{\"full_text\":\"\"}"); 141 | 142 | for (int i = 0; i < bar->num; ++i) { 143 | struct block *block = bar->blocks + i; 144 | 145 | /* full_text is the only mandatory key, skip if empty */ 146 | if (!*FULL_TEXT(block)) { 147 | bdebug(block, "no text to display, skipping"); 148 | continue; 149 | } 150 | 151 | print_block(block); 152 | } 153 | 154 | fprintf(stdout, "]\n"); 155 | fflush(stdout); 156 | } 157 | -------------------------------------------------------------------------------- /src/main.c: -------------------------------------------------------------------------------- 1 | /* 2 | * i3blocks.c - main entry point, load the config and start the scheduler 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #include 20 | #include 21 | 22 | #include "ini.h" 23 | #include "log.h" 24 | #include "sched.h" 25 | 26 | #ifndef VERSION 27 | #define VERSION "unknown" 28 | #endif 29 | 30 | unsigned log_level = LOG_NORMAL; 31 | 32 | static void 33 | start(void) 34 | { 35 | fprintf(stdout, "{\"version\":1,\"click_events\":true}\n[[]\n"); 36 | fflush(stdout); 37 | } 38 | 39 | int 40 | main(int argc, char *argv[]) 41 | { 42 | char *inifile = NULL; 43 | struct bar *bar; 44 | int c; 45 | 46 | while (c = getopt(argc, argv, "c:vhV"), c != -1) { 47 | switch (c) { 48 | case 'c': 49 | inifile = optarg; 50 | break; 51 | case 'v': 52 | log_level++; 53 | break; 54 | case 'h': 55 | printf("Usage: %s [-c ] [-h] [-V]\n", argv[0]); 56 | return 0; 57 | case 'V': 58 | printf("i3blocks " VERSION " © 2014 Vivien Didelot and contributors\n"); 59 | return 0; 60 | default: 61 | error("Try '%s -h' for more information.", argv[0]); 62 | return 1; 63 | } 64 | } 65 | 66 | debug("log level %u", log_level); 67 | 68 | bar = ini_load(inifile); 69 | if (!bar) { 70 | error("Try '%s -h' for more information.", argv[0]); 71 | return 1; 72 | } 73 | 74 | if (sched_init(bar)) 75 | return 1; 76 | 77 | start(); 78 | sched_start(bar); 79 | 80 | //stop(); 81 | return 0; 82 | } 83 | -------------------------------------------------------------------------------- /src/sched.c: -------------------------------------------------------------------------------- 1 | /* 2 | * sched.c - scheduling of block updates (timeout, signal or click) 3 | * Copyright (C) 2014 Vivien Didelot 4 | * 5 | * This program is free software: you can redistribute it and/or modify 6 | * it under the terms of the GNU General Public License as published by 7 | * the Free Software Foundation, either version 3 of the License, or 8 | * (at your option) any later version. 9 | * 10 | * This program is distributed in the hope that it will be useful, 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 | * GNU General Public License for more details. 14 | * 15 | * You should have received a copy of the GNU General Public License 16 | * along with this program. If not, see . 17 | */ 18 | 19 | #include 20 | #include 21 | #include 22 | #include 23 | #include 24 | #include 25 | #include 26 | #include 27 | 28 | #include "bar.h" 29 | #include "block.h" 30 | #include "io.h" 31 | #include "json.h" 32 | #include "log.h" 33 | 34 | static sigset_t set; 35 | 36 | static int 37 | gcd(int a, int b) 38 | { 39 | while (b != 0) 40 | a %= b, a ^= b, b ^= a, a ^= b; 41 | 42 | return a; 43 | } 44 | 45 | static unsigned int 46 | longest_sleep(struct bar *bar) 47 | { 48 | unsigned int time = 0; 49 | 50 | if (bar->num > 0 && bar->blocks->interval > 0) 51 | time = bar->blocks->interval; /* first block's interval */ 52 | 53 | if (bar->num < 2) 54 | return time; 55 | 56 | /* The maximum sleep time is actually the GCD between all block intervals */ 57 | for (int i = 1; i < bar->num; ++i) 58 | if ((bar->blocks + i)->interval > 0) 59 | time = gcd(time, (bar->blocks + i)->interval); 60 | 61 | return time; 62 | } 63 | 64 | static int 65 | setup_timer(struct bar *bar) 66 | { 67 | const unsigned sleeptime = longest_sleep(bar); 68 | 69 | if (!sleeptime) { 70 | debug("no timer needed"); 71 | return 0; 72 | } 73 | 74 | struct itimerval itv = { 75 | .it_value.tv_sec = sleeptime, 76 | .it_interval.tv_sec = sleeptime, 77 | }; 78 | 79 | if (setitimer(ITIMER_REAL, &itv, NULL) == -1) { 80 | errorx("setitimer"); 81 | return 1; 82 | } 83 | 84 | debug("starting timer with interval of %d seconds", sleeptime); 85 | return 0; 86 | } 87 | 88 | static int 89 | setup_signals(void) 90 | { 91 | if (sigemptyset(&set) == -1) { 92 | errorx("sigemptyset"); 93 | return 1; 94 | } 95 | 96 | #define ADD_SIG(_sig) \ 97 | if (sigaddset(&set, _sig) == -1) { errorx("sigaddset(%d)", _sig); return 1; } 98 | 99 | /* Control signals */ 100 | ADD_SIG(SIGTERM); 101 | ADD_SIG(SIGINT); 102 | 103 | /* Timer signal */ 104 | ADD_SIG(SIGALRM); 105 | 106 | /* Block updates (forks) */ 107 | ADD_SIG(SIGCHLD); 108 | 109 | /* Deprecated signals */ 110 | ADD_SIG(SIGUSR1); 111 | ADD_SIG(SIGUSR2); 112 | 113 | /* Click signal */ 114 | ADD_SIG(SIGIO); 115 | 116 | /* I/O Possible signal for persistent blocks */ 117 | ADD_SIG(SIGRTMIN); 118 | 119 | /* Real-time signals for blocks */ 120 | for (int sig = SIGRTMIN + 1; sig <= SIGRTMAX; ++sig) { 121 | debug("provide signal %d (%s)", sig, strsignal(sig)); 122 | ADD_SIG(sig); 123 | } 124 | 125 | #undef ADD_SIG 126 | 127 | /* Block signals for which we are interested in waiting */ 128 | if (sigprocmask(SIG_SETMASK, &set, NULL) == -1) { 129 | errorx("sigprocmask"); 130 | return 1; 131 | } 132 | 133 | return 0; 134 | } 135 | 136 | int 137 | sched_init(struct bar *bar) 138 | { 139 | if (setup_signals()) 140 | return 1; 141 | 142 | if (setup_timer(bar)) 143 | return 1; 144 | 145 | /* Setup event I/O for stdin (clicks) */ 146 | if (!isatty(STDIN_FILENO)) 147 | if (io_signal(STDIN_FILENO, SIGIO)) 148 | return 1; 149 | 150 | return 0; 151 | } 152 | 153 | void 154 | sched_start(struct bar *bar) 155 | { 156 | siginfo_t siginfo; 157 | int sig; 158 | 159 | /* 160 | * Initial display (for static blocks and loading labels), 161 | * and first forks (for commands with an interval). 162 | */ 163 | json_print_bar(bar); 164 | bar_poll_timed(bar); 165 | 166 | while (1) { 167 | sig = sigwaitinfo(&set, &siginfo); 168 | if (sig == -1) { 169 | /* Hiding the bar may interrupt this system call */ 170 | if (errno == EINTR) 171 | continue; 172 | 173 | errorx("sigwaitinfo"); 174 | break; 175 | } 176 | 177 | debug("received signal %d (%s)", sig, strsignal(sig)); 178 | 179 | if (sig == SIGTERM || sig == SIGINT) 180 | break; 181 | 182 | /* Interval tick? */ 183 | if (sig == SIGALRM) { 184 | bar_poll_outdated(bar); 185 | 186 | /* Child(ren) dead? */ 187 | } else if (sig == SIGCHLD) { 188 | bar_poll_exited(bar); 189 | json_print_bar(bar); 190 | 191 | /* Block clicked? */ 192 | } else if (sig == SIGIO) { 193 | bar_poll_clicked(bar); 194 | 195 | /* Persistent block ready to be read? */ 196 | } else if (sig == SIGRTMIN) { 197 | bar_poll_readable(bar, siginfo.si_fd); 198 | json_print_bar(bar); 199 | 200 | /* Blocks signaled? */ 201 | } else if (sig > SIGRTMIN && sig <= SIGRTMAX) { 202 | bar_poll_signaled(bar, sig - SIGRTMIN); 203 | 204 | /* Deprecated signals? */ 205 | } else if (sig == SIGUSR1 || sig == SIGUSR2) { 206 | error("SIGUSR{1,2} are deprecated, ignoring."); 207 | 208 | } else debug("unhandled signal %d", sig); 209 | } 210 | 211 | /* 212 | * Unblock signals (so subsequent syscall can be interrupted) 213 | * and wait for child processes termination. 214 | */ 215 | if (sigprocmask(SIG_UNBLOCK, &set, NULL) == -1) 216 | errorx("sigprocmask"); 217 | while (waitpid(-1, NULL, 0) > 0) 218 | continue; 219 | 220 | debug("quit scheduling"); 221 | } 222 | --------------------------------------------------------------------------------