├── LICENSE.md ├── README.md ├── ast.go ├── go.mod ├── go.sum ├── main.go ├── main_test.go └── native.go /LICENSE.md: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | ========================== 3 | 4 | Version 3, 29 June 2007 5 | 6 | Copyright © 2007 Free Software Foundation, Inc. <> 7 | 8 | Everyone is permitted to copy and distribute verbatim copies of this license 9 | document, but changing it is not allowed. 10 | 11 | ## Preamble 12 | 13 | The GNU General Public License is a free, copyleft license for software and other 14 | kinds of works. 15 | 16 | The licenses for most software and other practical works are designed to take away 17 | your freedom to share and change the works. By contrast, the GNU General Public 18 | License is intended to guarantee your freedom to share and change all versions of a 19 | program--to make sure it remains free software for all its users. We, the Free 20 | Software Foundation, use the GNU General Public License for most of our software; it 21 | applies also to any other work released this way by its authors. You can apply it to 22 | your programs, too. 23 | 24 | When we speak of free software, we are referring to freedom, not price. Our General 25 | Public Licenses are designed to make sure that you have the freedom to distribute 26 | copies of free software (and charge for them if you wish), that you receive source 27 | code or can get it if you want it, that you can change the software or use pieces of 28 | it in new free programs, and that you know you can do these things. 29 | 30 | To protect your rights, we need to prevent others from denying you these rights or 31 | asking you to surrender the rights. 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Patents. 412 | 413 | A “contributor” is a copyright holder who authorizes use under this 414 | License of the Program or a work on which the Program is based. The work thus 415 | licensed is called the contributor's “contributor version”. 416 | 417 | A contributor's “essential patent claims” are all patent claims owned or 418 | controlled by the contributor, whether already acquired or hereafter acquired, that 419 | would be infringed by some manner, permitted by this License, of making, using, or 420 | selling its contributor version, but do not include claims that would be infringed 421 | only as a consequence of further modification of the contributor version. For 422 | purposes of this definition, “control” includes the right to grant patent 423 | sublicenses in a manner consistent with the requirements of this License. 424 | 425 | Each contributor grants you a non-exclusive, worldwide, royalty-free patent license 426 | under the contributor's essential patent claims, to make, use, sell, offer for sale, 427 | import and otherwise run, modify and propagate the contents of its contributor 428 | version. 429 | 430 | In the following three paragraphs, a “patent license” is any express 431 | agreement or commitment, however denominated, not to enforce a patent (such as an 432 | express permission to practice a patent or covenant not to sue for patent 433 | infringement). 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You may not convey a covered work if you are a party to an arrangement with 459 | a third party that is in the business of distributing software, under which you make 460 | payment to the third party based on the extent of your activity of conveying the 461 | work, and under which the third party grants, to any of the parties who would receive 462 | the covered work from you, a discriminatory patent license (a) in connection with 463 | copies of the covered work conveyed by you (or copies made from those copies), or (b) 464 | primarily for and in connection with specific products or compilations that contain 465 | the covered work, unless you entered into that arrangement, or that patent license 466 | was granted, prior to 28 March 2007. 467 | 468 | Nothing in this License shall be construed as excluding or limiting any implied 469 | license or other defenses to infringement that may otherwise be available to you 470 | under applicable patent law. 471 | 472 | ### 12. No Surrender of Others' Freedom. 473 | 474 | If conditions are imposed on you (whether by court order, agreement or otherwise) 475 | that contradict the conditions of this License, they do not excuse you from the 476 | conditions of this License. If you cannot convey a covered work so as to satisfy 477 | simultaneously your obligations under this License and any other pertinent 478 | obligations, then as a consequence you may not convey it at all. For example, if you 479 | agree to terms that obligate you to collect a royalty for further conveying from 480 | those to whom you convey the Program, the only way you could satisfy both those terms 481 | and this License would be to refrain entirely from conveying the Program. 482 | 483 | ### 13. Use with the GNU Affero General Public License. 484 | 485 | Notwithstanding any other provision of this License, you have permission to link or 486 | combine any covered work with a work licensed under version 3 of the GNU Affero 487 | General Public License into a single combined work, and to convey the resulting work. 488 | The terms of this License will continue to apply to the part which is the covered 489 | work, but the special requirements of the GNU Affero General Public License, section 490 | 13, concerning interaction through a network will apply to the combination as such. 491 | 492 | ### 14. Revised Versions of this License. 493 | 494 | The Free Software Foundation may publish revised and/or new versions of the GNU 495 | General Public License from time to time. Such new versions will be similar in spirit 496 | to the present version, but may differ in detail to address new problems or concerns. 497 | 498 | Each version is given a distinguishing version number. If the Program specifies that 499 | a certain numbered version of the GNU General Public License “or any later 500 | version” applies to it, you have the option of following the terms and 501 | conditions either of that numbered version or of any later version published by the 502 | Free Software Foundation. If the Program does not specify a version number of the GNU 503 | General Public License, you may choose any version ever published by the Free 504 | Software Foundation. 505 | 506 | If the Program specifies that a proxy can decide which future versions of the GNU 507 | General Public License can be used, that proxy's public statement of acceptance of a 508 | version permanently authorizes you to choose that version for the Program. 509 | 510 | Later license versions may give you additional or different permissions. However, no 511 | additional obligations are imposed on any author or copyright holder as a result of 512 | your choosing to follow a later version. 513 | 514 | ### 15. Disclaimer of Warranty. 515 | 516 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. 517 | EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 518 | PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER 519 | EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 520 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE 521 | QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE 522 | DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 523 | 524 | ### 16. Limitation of Liability. 525 | 526 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY 527 | COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS 528 | PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, 529 | INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE 530 | PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE 531 | OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE 532 | WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 533 | POSSIBILITY OF SUCH DAMAGES. 534 | 535 | ### 17. Interpretation of Sections 15 and 16. 536 | 537 | If the disclaimer of warranty and limitation of liability provided above cannot be 538 | given local legal effect according to their terms, reviewing courts shall apply local 539 | law that most closely approximates an absolute waiver of all civil liability in 540 | connection with the Program, unless a warranty or assumption of liability accompanies 541 | a copy of the Program in return for a fee. 542 | 543 | END OF TERMS AND CONDITIONS 544 | 545 | ## How to Apply These Terms to Your New Programs 546 | 547 | If you develop a new program, and you want it to be of the greatest possible use to 548 | the public, the best way to achieve this is to make it free software which everyone 549 | can redistribute and change under these terms. 550 | 551 | To do so, attach the following notices to the program. It is safest to attach them 552 | to the start of each source file to most effectively state the exclusion of warranty; 553 | and each file should have at least the “copyright” line and a pointer to 554 | where the full notice is found. 555 | 556 | 557 | Copyright (C) 558 | 559 | This program is free software: you can redistribute it and/or modify 560 | it under the terms of the GNU General Public License as published by 561 | the Free Software Foundation, either version 3 of the License, or 562 | (at your option) any later version. 563 | 564 | This program is distributed in the hope that it will be useful, 565 | but WITHOUT ANY WARRANTY; without even the implied warranty of 566 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 567 | GNU General Public License for more details. 568 | 569 | You should have received a copy of the GNU General Public License 570 | along with this program. If not, see . 571 | 572 | Also add information on how to contact you by electronic and paper mail. 573 | 574 | If the program does terminal interaction, make it output a short notice like this 575 | when it starts in an interactive mode: 576 | 577 | Copyright (C) 578 | This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'. 579 | This is free software, and you are welcome to redistribute it 580 | under certain conditions; type 'show c' for details. 581 | 582 | The hypothetical commands 'show w' and 'show c' should show the appropriate parts of 583 | the General Public License. Of course, your program's commands might be different; 584 | for a GUI interface, you would use an “about box”. 585 | 586 | You should also get your employer (if you work as a programmer) or school, if any, to 587 | sign a “copyright disclaimer” for the program, if necessary. For more 588 | information on this, and how to apply and follow the GNU GPL, see 589 | <>. 590 | 591 | The GNU General Public License does not permit incorporating your program into 592 | proprietary programs. If your program is a subroutine library, you may consider it 593 | more useful to permit linking proprietary applications with the library. If this is 594 | what you want to do, use the GNU Lesser General Public License instead of this 595 | License. But first, please read 596 | <>. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | gomove 2 | =================== 3 | 4 | 5 | **gomove** is a utility to help you move golang packages by automatically changing the import paths from the old one to new one. 6 | 7 | ---------- 8 | 9 | Getting Started 10 | ------------- 11 | 12 | Getting started with gomove is really easy. If you have a proper `$GOPATH` setup and your path set to `bin` directory in `$GOPATH`, you can do the following to get gomove tool: 13 | 14 | $ go get -u github.com/ksubedi/gomove 15 | 16 | You can also download pre-built binary files and debian packages from the [releases page](https://github.com/KSubedi/gomove/releases). 17 | 18 | Once you have the gomove installed, using it is really easy. First, move your package directory to the new directory and run gomove tool. 19 | 20 | In this example, we are moving package `github.com/ksubedi/go-web-seed` to `github.com/ksubedi/new-project`. First we move the first directory to the second one, then we can do the following to automatically update the imports: 21 | 22 | $ gomove -d $GOPATH/src/github.com/ksubedi/new-project github.com/ksubedi/go-web-seed github.com/ksubedi/new-project 23 | 24 | You can also `cd` to the directory of `github.com/ksubedi/new-project` and run gomove like this: 25 | 26 | $ gomove github.com/ksubedi/go-web-seed github.com/ksubedi/new-project 27 | 28 | You can also only replace the contents one file only by using `-f` or `--file` flag. 29 | 30 | $ gomove -f hello.go github.com/bla/bla github.com/foo/bar 31 | 32 | You can also run `gomove --help` for help. 33 | 34 | $ gomove --help 35 | NAME: 36 | gomove - Move Golang packages to a new path. 37 | 38 | USAGE: 39 | gomove [global options] command [command options] [old path] [new path] 40 | 41 | VERSION: 42 | 0.2.17 43 | 44 | AUTHOR(S): 45 | Kaushal Subedi 46 | 47 | COMMANDS: 48 | help, h Shows a list of commands or help for one command 49 | 50 | GLOBAL OPTIONS: 51 | --dir, -d "./" directory to scan 52 | --file, -f only move imports in a file 53 | --safe-mode, -s "false" run program in safe mode (comments will be wiped) 54 | --help, -h show help 55 | --version, -v print the version 56 | 57 | 58 | Safe Mode 59 | ------------- 60 | By default this tool uses something called native mode where it scans through the go files, finds import statements and replaces the package names. However if you want to use a more safe way of changing the import statements, you can use Safe Mode which parses the ast tree of the go file and replaces imports from there. The biggest downside to using this is that it will [prettify](https://godoc.org/github.com/golang/go/src/cmd/gofmt) your files. To use it in safe mode set the `--safe-mode` or `-s` flag to true: 61 | 62 | gomove --safe-mode true github.com/bla/bla github.com/foo/bar 63 | 64 | 65 | License 66 | ------------- 67 | 68 | This software is licensed under the GNU GPL V3 License. Check [LICENSE.md](LICENSE.md) for full license. -------------------------------------------------------------------------------- /ast.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "bytes" 5 | "fmt" 6 | "go/parser" 7 | "go/printer" 8 | "go/token" 9 | "io/ioutil" 10 | "os" 11 | 12 | "github.com/mgutz/ansi" 13 | "golang.org/x/tools/go/ast/astutil" 14 | ) 15 | 16 | // ProcessFileAST processes the files using golang's AST parser 17 | func ProcessFileAST(filePath string, from string, to string) { 18 | 19 | //Colors to be used on the console 20 | red := ansi.ColorCode("red+bh") 21 | white := ansi.ColorCode("white+bh") 22 | yellow := ansi.ColorCode("yellow+bh") 23 | blackOnWhite := ansi.ColorCode("black+b:white+h") 24 | //Reset the color 25 | reset := ansi.ColorCode("reset") 26 | 27 | fmt.Println(blackOnWhite+"Processing file", filePath, "in SAFE MODE", reset) 28 | 29 | // New FileSet to parse the go file to 30 | fSet := token.NewFileSet() 31 | 32 | // Parse the file 33 | file, err := parser.ParseFile(fSet, filePath, nil, parser.ParseComments) 34 | if err != nil { 35 | fmt.Println(err) 36 | return 37 | } 38 | 39 | // Keep track of number of changes 40 | changed := false 41 | if changed = astutil.RewriteImport(fSet, file, from, to); changed { 42 | fmt.Println(red + 43 | "Updating import " + 44 | reset + white + 45 | from + 46 | reset + red + 47 | " to " + 48 | reset + white + 49 | to + 50 | reset) 51 | } 52 | 53 | // If the number of changes are more than 0, write file 54 | if changed { 55 | // Print the new AST tree to a new output buffer. These Config settings intended to match gofmt. 56 | printerMode := printer.TabIndent | printer.UseSpaces 57 | printConfig := &printer.Config{Mode: printerMode, Tabwidth: 8} 58 | 59 | var outputBuffer bytes.Buffer 60 | err := printConfig.Fprint(&outputBuffer, fSet, file) 61 | if err != nil { 62 | fmt.Println(err) 63 | return 64 | } 65 | 66 | ioutil.WriteFile(filePath, outputBuffer.Bytes(), os.ModePerm) 67 | fmt.Print(yellow+ 68 | "File", 69 | filePath, 70 | "saved", 71 | reset, "\n\n\n") 72 | } else { 73 | fmt.Print(yellow+ 74 | "No changes to write on this file.", 75 | reset, "\n\n\n") 76 | } 77 | } 78 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/ksubedi/gomove 2 | 3 | go 1.13 4 | 5 | require ( 6 | github.com/mattn/go-colorable v0.1.4 // indirect 7 | github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b 8 | github.com/urfave/cli v1.22.2 9 | golang.org/x/tools v0.0.0-20191204214957-d79e56da46fe 10 | ) 11 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 2 | github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY= 3 | github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= 4 | github.com/mattn/go-colorable v0.1.4 h1:snbPLB8fVfU9iwbbo30TPtbLRzwWu6aJS6Xh4eaaviA= 5 | github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE= 6 | github.com/mattn/go-isatty v0.0.8 h1:HLtExJ+uU2HOZ+wI0Tt5DtUDrx8yhUqDcp7fYERX4CE= 7 | github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= 8 | github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b h1:j7+1HpAFS1zy5+Q4qx1fWh90gTKwiN4QCGoY9TWyyO4= 9 | github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE= 10 | github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= 11 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 12 | github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q= 13 | github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM= 14 | github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo= 15 | github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc= 16 | github.com/urfave/cli v1.22.2 h1:gsqYFH8bb9ekPA12kRo0hfjngWQjkJPlN9R0N78BoUo= 17 | github.com/urfave/cli v1.22.2/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0= 18 | golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= 19 | golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= 20 | golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= 21 | golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 22 | golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 h1:DH4skfRX4EBpamg7iV4ZlCpblAHI6s6TDM39bFZumv8= 23 | golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= 24 | golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= 25 | golang.org/x/tools v0.0.0-20191204214957-d79e56da46fe h1:vkJyJzXSoRU0cEXFVuc2EPZ78LTXlR8iK1r41XbRopc= 26 | golang.org/x/tools v0.0.0-20191204214957-d79e56da46fe/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= 27 | golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= 28 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 29 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 30 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "os" 5 | "path" 6 | "path/filepath" 7 | "strings" 8 | 9 | "github.com/urfave/cli" 10 | ) 11 | 12 | func main() { 13 | app := cli.NewApp() 14 | app.Name = "gomove" 15 | app.Usage = "Move Golang packages to a new path." 16 | app.Version = "0.2.17" 17 | app.ArgsUsage = "[old path] [new path]" 18 | app.Author = "Kaushal Subedi " 19 | 20 | app.Flags = []cli.Flag{ 21 | cli.StringFlag{ 22 | Name: "dir, d", 23 | Value: "./", 24 | Usage: "directory to scan. files under vendor/ are ignored", 25 | }, 26 | cli.StringFlag{ 27 | Name: "file, f", 28 | Usage: "only move imports in a file", 29 | }, 30 | cli.StringFlag{ 31 | Name: "safe-mode, s", 32 | Value: "false", 33 | Usage: "run program in safe mode (comments will be wiped)", 34 | }, 35 | } 36 | 37 | app.Action = func(c *cli.Context) { 38 | file := c.String("file") 39 | dir := c.String("dir") 40 | from := c.Args().Get(0) 41 | to := c.Args().Get(1) 42 | 43 | if file != "" { 44 | ProcessFile(file, from, to, c) 45 | } else { 46 | ScanDir(dir, from, to, c) 47 | } 48 | 49 | } 50 | 51 | app.Run(os.Args) 52 | } 53 | 54 | // ScanDir scans a directory for go files and 55 | func ScanDir(dir string, from string, to string, c *cli.Context) { 56 | // If from and to are not empty scan all files 57 | if from != "" && to != "" { 58 | // construct the path of the vendor dir of the project for prefix matching 59 | vendorDir := path.Join(dir, "vendor") 60 | // Scan directory for files 61 | filepath.Walk(dir, func(filePath string, info os.FileInfo, err error) error { 62 | // ignore vendor path 63 | if matched := strings.HasPrefix(filePath, vendorDir); matched { 64 | return nil 65 | } 66 | // Only process go files 67 | if path.Ext(filePath) == ".go" { 68 | ProcessFile(filePath, from, to, c) 69 | } 70 | 71 | return nil 72 | }) 73 | 74 | } else { 75 | cli.ShowAppHelp(c) 76 | } 77 | 78 | } 79 | 80 | // ProcessFile processes file according to what mode is chosen 81 | func ProcessFile(filePath string, from string, to string, c *cli.Context) { 82 | if c.String("safe-mode") == "true" { 83 | ProcessFileAST(filePath, from, to) 84 | } else { 85 | ProcessFileNative(filePath, from, to) 86 | } 87 | } 88 | -------------------------------------------------------------------------------- /main_test.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "io/ioutil" 5 | "os" 6 | "strings" 7 | "testing" 8 | ) 9 | 10 | func TestAppAST(t *testing.T) { 11 | fileContent := "package testing\n\nimport \"fmt\"\n\nfunc HelloWorld() {\nfmt.Println(\"Hello World!\")\n}\n" 12 | 13 | ioutil.WriteFile("hello.go", []byte(fileContent), os.ModePerm) 14 | 15 | ProcessFileAST("hello.go", "fmt", "replacedImport") 16 | 17 | result, err := ioutil.ReadFile("hello.go") 18 | if err != nil { 19 | t.Error("Failed to read written file.") 20 | } 21 | 22 | if !strings.Contains(string(result), "replacedImport") { 23 | t.Error("Got different results") 24 | } 25 | os.Remove("hello.go") 26 | } 27 | 28 | func TestAppNative(t *testing.T) { 29 | fileContent := "package testing\n\nimport \"fmt\"\n\nfunc HelloWorld() {\nfmt.Println(\"Hello World!\")\n}\n" 30 | 31 | ioutil.WriteFile("hello.go", []byte(fileContent), os.ModePerm) 32 | 33 | ProcessFileNative("hello.go", "fmt", "replacedImport") 34 | 35 | result, err := ioutil.ReadFile("hello.go") 36 | if err != nil { 37 | t.Error("Failed to read written file.") 38 | } 39 | 40 | if !strings.Contains(string(result), "replacedImport") { 41 | t.Error("Got different results") 42 | } 43 | os.Remove("hello.go") 44 | } 45 | -------------------------------------------------------------------------------- /native.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "bufio" 5 | "bytes" 6 | "fmt" 7 | "io/ioutil" 8 | "os" 9 | "strings" 10 | 11 | "github.com/mgutz/ansi" 12 | ) 13 | 14 | // ProcessFileNative processes files uing native string search instead of ast parsing 15 | func ProcessFileNative(filePath string, from string, to string) { 16 | //Colors to be used on the console 17 | red := ansi.ColorCode("red+bh") 18 | white := ansi.ColorCode("white+bh") 19 | green := ansi.ColorCode("green+bh") 20 | yellow := ansi.ColorCode("yellow+bh") 21 | blackOnWhite := ansi.ColorCode("black+b:white+h") 22 | //Reset the color 23 | reset := ansi.ColorCode("reset") 24 | 25 | fmt.Println(blackOnWhite+"Processing file", filePath, reset) 26 | 27 | // Open file to read 28 | fileContent, err := ioutil.ReadFile(filePath) 29 | if err != nil { 30 | fmt.Println(err) 31 | } 32 | 33 | // Scan file line by line 34 | scanner := bufio.NewScanner(bytes.NewReader(fileContent)) 35 | 36 | // Track line that is being scanned 37 | scanLine := 0 38 | // Track number of changes in file 39 | numChanges := 0 40 | 41 | // Control variables 42 | isImportLine := false 43 | 44 | // Store final output text 45 | output := "" 46 | 47 | // Scan through the lines of go file 48 | for scanner.Scan() { 49 | 50 | scanLine++ 51 | line := scanner.Text() 52 | bareLine := strings.Replace(line, " ", "", -1) 53 | 54 | // If it is a single import statement, replace the path in that line 55 | if strings.Contains(bareLine, "import\"") { 56 | 57 | newImport := strings.Replace(line, from, to, -1) 58 | output += newImport + "\n" 59 | if line != newImport { 60 | numChanges++ 61 | 62 | fmt.Println(red+"Updating "+ 63 | reset+white+ 64 | strings.TrimSpace(line)+ 65 | reset+red+ 66 | " to "+ 67 | reset+white+ 68 | strings.TrimSpace(newImport)+ 69 | reset+red+ 70 | "on line", scanLine, reset) 71 | } 72 | 73 | continue 74 | } 75 | 76 | // Change isImportLine accordingly if import statements are detected 77 | if strings.Contains(bareLine, "import(") { 78 | fmt.Println(green+"Found Multiple Imports Starting On Line", scanLine, reset) 79 | isImportLine = true 80 | } else if isImportLine && strings.Contains(bareLine, ")") { 81 | fmt.Println(green+"Imports Finish On Line", scanLine, reset) 82 | isImportLine = false 83 | } 84 | 85 | // If it is a import line, replace the import 86 | if isImportLine { 87 | newImport := strings.Replace(line, from, to, -1) 88 | output += newImport + "\n" 89 | if line != newImport { 90 | numChanges++ 91 | fmt.Println(red+"Updating text "+ 92 | reset+white+ 93 | strings.TrimSpace(line)+ 94 | reset+red+ 95 | " to "+ 96 | reset+white+ 97 | strings.TrimSpace(newImport)+ 98 | reset+red+ 99 | " on line", scanLine, reset) 100 | 101 | } 102 | continue 103 | } 104 | 105 | // Just copy the rest of the lines to the output 106 | output += line + "\n" 107 | 108 | } 109 | 110 | // Only write if changes were made 111 | if numChanges > 0 { 112 | fmt.Print(yellow+ 113 | "File", 114 | filePath, 115 | "saved after", 116 | numChanges, 117 | "changes", 118 | reset, "\n\n\n") 119 | ioutil.WriteFile(filePath, []byte(output), os.ModePerm) 120 | } else { 121 | fmt.Print(yellow+ 122 | "No changes to write on this file.", 123 | reset, "\n\n\n") 124 | } 125 | } 126 | --------------------------------------------------------------------------------