├── tests ├── __init__.py ├── fixture │ ├── fake-package.tar.bz2 │ ├── inputrc │ └── bashrc ├── test_mamba.py └── conftest.py ├── setup.cfg ├── recipe ├── build.sh ├── run_test.sh ├── Makefile └── meta.yaml ├── README.md ├── mamba └── LICENSE /tests/__init__.py: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /tests/fixture/fake-package.tar.bz2: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /setup.cfg: -------------------------------------------------------------------------------- 1 | [tool:pytest] 2 | testpaths = tests 3 | markers = 4 | complete: tests involving shell completion 5 | -------------------------------------------------------------------------------- /recipe/build.sh: -------------------------------------------------------------------------------- 1 | mkdir -p $PREFIX/share/bash-completion/completions/ 2 | cp mamba $PREFIX/share/bash-completion/completions/mamba 3 | -------------------------------------------------------------------------------- /recipe/run_test.sh: -------------------------------------------------------------------------------- 1 | # Use the "bash" installed as a dependency 2 | 3 | bash -e <=4.1 24 | 25 | about: 26 | home: https://github.com/tartansandal/mamba-bash-completion 27 | license: GPL-3.0-or-later 28 | license_file: LICENSE 29 | summary: "Bash completion for the mamba commmand." 30 | 31 | extra: 32 | recipe-maintainers: 33 | - tartansandal 34 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Bash completion support for the `mamba` command 2 | 3 | This extends the 4 | [`conda-bash-completion`](https://github.com/tartansandal/conda-bash-completion) 5 | project to work with [`mamba`](https://mamba.readthedocs.io/en/latest/) by 6 | adding support for the `repoquery` command and its options. 7 | 8 | The easiest way to install this feature is via the `mamba-bash-completion` 9 | package: 10 | 11 | ```bash 12 | mamba install -c conda-forge mamba-bash-completion 13 | ``` 14 | 15 | This is really just a thin wrapper to tweak 16 | [`conda-bash-completion`](https://github.com/tartansandal/conda-bash-completion) 17 | so see that project for details. 18 | 19 | ## NOTES 20 | 21 | ### `minimamba` 22 | 23 | The `minimamba` executable is built on 24 | [cli11](https://cliutils.github.io/CLI11/book/) and has its own completion 25 | support built-in, so we are not going to mess with that :wink:. 26 | 27 | ## Thanks 28 | 29 | Thanks to @sixvable for introducing me to mamba by suggesting this 30 | project. :smile: 31 | -------------------------------------------------------------------------------- /mamba: -------------------------------------------------------------------------------- 1 | # bash_completion for mamba. 2 | 3 | # An extension of conda_bash_completion 4 | 5 | # The extglob option is set by the bash_completion library anyway, 6 | # Setting it here to work around some rare edge cases. 7 | shopt -s extglob 8 | 9 | if ! declare -F _comp_conda > /dev/null 10 | then 11 | # load `conda` completion using the bash completion routine 12 | __load_completion conda 13 | fi 14 | 15 | function __comp_mamba_commands () { 16 | __comp_conda_commands 17 | echo repoquery 18 | } 19 | 20 | _comp_mamba() 21 | { 22 | # shellcheck disable=SC2034 23 | \local cur prev words cword 24 | 25 | _init_completion || return 26 | 27 | \local word_list 28 | if [[ $cur != -* ]]; then 29 | case "$prev" in 30 | mamba) 31 | word_list=$(__comp_mamba_commands 2>/dev/null) 32 | ;; 33 | esac 34 | fi 35 | if [[ -n $word_list ]]; then 36 | # append completion suggestions to COMPREPLY 37 | mapfile -t -O "${#COMPREPLY[@]}" COMPREPLY < \ 38 | <(compgen -W "$word_list" -- "$cur") 39 | else 40 | _comp_conda 41 | fi 42 | } && 43 | complete -F _comp_mamba mamba 44 | 45 | # vim: ft=sh 46 | -------------------------------------------------------------------------------- /tests/fixture/bashrc: -------------------------------------------------------------------------------- 1 | # bashrc file for bash-completion test suite 2 | 3 | # Note that we do some initialization that would be too late to do here in 4 | # conftest.py. 5 | 6 | # Use emacs key bindings 7 | set -o emacs 8 | 9 | # Use bash strict mode 10 | set -o posix 11 | 12 | # Raise error on uninitialized variables 13 | # This really slows down tests ... maybe wait for new version of bash_completion 14 | # set -o nounset 15 | 16 | # Unset `command_not_found_handle' as defined on Debian/Ubuntu, because this 17 | # troubles and slows down testing 18 | unset -f command_not_found_handle 19 | 20 | export PS2='> ' 21 | 22 | # For clean test state, avoid sourcing user's ~/.bash_completion 23 | export BASH_COMPLETION_USER_FILE=/dev/null 24 | 25 | # ...and avoid stuff in BASH_COMPLETION_USER_DIR and system install locations 26 | # overriding in-tree completions. Setting the user dir would otherwise suffice, 27 | # but simple xspec completions are only installed if a separate one is not 28 | # found in any completion dirs. Therefore we also point the "system" dirs to 29 | # locations that should not yield valid completions and helpers paths either. 30 | export BASH_COMPLETION_USER_DIR=/var/empty 31 | 32 | # /var/empty isn't necessarily actually always empty :P 33 | export BASH_COMPLETION_COMPAT_DIR=/var/empty/bash_completion.d 34 | export XDG_DATA_DIRS=/var/empty 35 | 36 | # @param $1 Char to add to $COMP_WORDBREAKS 37 | add_comp_wordbreak_char() 38 | { 39 | [[ "${COMP_WORDBREAKS//[^$1]/}" ]] || COMP_WORDBREAKS+=$1 40 | } 41 | -------------------------------------------------------------------------------- /tests/test_mamba.py: -------------------------------------------------------------------------------- 1 | import pytest 2 | 3 | 4 | class TestMamba: 5 | @pytest.mark.complete("mamba") 6 | def test_base_command(self, completion): 7 | assert completion 8 | 9 | @pytest.mark.complete("mamba -", require_cmd=True) 10 | def test_top_level_options(self, completion): 11 | assert completion 12 | assert completion == ['--help', '--version'] 13 | 14 | @pytest.mark.complete("mamba ") 15 | def test_top_level_commands(self, completion): 16 | assert completion 17 | assert completion == [ 18 | 'activate', 19 | 'build', 20 | 'clean', 21 | 'compare', 22 | 'config', 23 | 'convert', 24 | 'create', 25 | 'deactivate', 26 | 'debug', 27 | 'develop', 28 | 'env', 29 | 'help', 30 | 'index', 31 | 'info', 32 | 'init', 33 | 'inspect', 34 | 'install', 35 | 'list', 36 | 'metapackage', 37 | 'pack', 38 | 'package', 39 | 'remove', 40 | 'render', 41 | 'repoquery', 42 | 'run', 43 | 'search', 44 | 'server', 45 | 'skeleton', 46 | 'uninstall', 47 | 'update', 48 | 'upgrade', 49 | 'verify', 50 | ] 51 | 52 | @pytest.mark.complete("mamba d") 53 | def test_top_level_partial_cmds(self, completion): 54 | assert completion 55 | assert completion == [ 56 | 'deactivate', 57 | 'debug', 58 | 'develop', 59 | ] 60 | 61 | @pytest.mark.complete("mamba develop --") 62 | def test_comand_options(self, completion): 63 | assert completion 64 | assert completion == [ 65 | '--build_ext', 66 | '--clean', 67 | '--help', 68 | '--name', 69 | '--no-pth-file', 70 | '--prefix', 71 | '--uninstall', 72 | ] 73 | 74 | @pytest.mark.complete("mamba env ") 75 | def test_sub_comands(self, completion): 76 | assert completion 77 | assert completion == [ 78 | 'config', 79 | 'create', 80 | 'export', 81 | 'list', 82 | 'remove', 83 | 'update', 84 | 'vars', 85 | ] 86 | 87 | @pytest.mark.complete("mamba activate ") 88 | def test_environments(self, completion): 89 | assert completion 90 | assert 'mamba-bash-comp-testing' in completion 91 | 92 | @pytest.mark.complete("mamba env create --") 93 | def test_sub_comand_options(self, completion): 94 | assert completion 95 | assert completion == [ 96 | '--dry-run', 97 | '--file', 98 | '--force', 99 | '--help', 100 | '--insecure', 101 | '--json', 102 | '--name', 103 | '--no-default-packages', 104 | '--offline', 105 | '--prefix', 106 | '--quiet', 107 | '--use-index-cache', 108 | '--verbose', 109 | ] 110 | 111 | @pytest.mark.complete("mamba build ") 112 | def test_build_sub_comands(self, completion): 113 | assert completion 114 | assert 'purge' in completion 115 | assert 'purge-all' in completion 116 | 117 | @pytest.mark.complete("mamba build --config-file ") 118 | def test_filename(self, completion): 119 | assert completion 120 | assert sorted(completion) == [ 121 | 'bashrc', 122 | 'fake-package.tar.bz2', 123 | 'inputrc', 124 | ] 125 | 126 | @pytest.mark.complete("mamba verify ") 127 | def test_verify(self, completion): 128 | assert completion 129 | assert completion == ['fake-package.tar.bz2'] 130 | 131 | @pytest.mark.complete("mamba config ") 132 | def test_config(self, completion): 133 | assert completion == [] 134 | 135 | @pytest.mark.complete("mamba config --") 136 | def test_config_options(self, completion): 137 | assert completion 138 | assert completion == [ 139 | '--append', 140 | '--describe', 141 | '--env', 142 | '--file', 143 | '--get', 144 | '--help', 145 | '--json', 146 | '--prepend', 147 | '--quiet', 148 | '--remove', 149 | '--remove-key', 150 | '--set', 151 | '--show', 152 | '--show-sources', 153 | '--stdin', 154 | '--system', 155 | '--validate', 156 | '--verbose', 157 | '--write-default', 158 | ] 159 | -------------------------------------------------------------------------------- /tests/conftest.py: -------------------------------------------------------------------------------- 1 | # The following was adapted from the test framework for the bash_completion 2 | # project: https://github.com/scop/bash-completion/ 3 | 4 | import os 5 | import difflib 6 | import re 7 | import shlex 8 | from typing import Iterable, List, Optional, Union 9 | 10 | import pexpect 11 | import pytest 12 | from pathlib import Path, PurePath 13 | 14 | 15 | PS1 = "(base) /@" 16 | MAGIC_MARK = "__MaGiC-maRKz!__" 17 | 18 | 19 | @pytest.fixture(scope="class") 20 | def bash(request) -> pexpect.spawn: 21 | 22 | env = os.environ.copy() 23 | 24 | logfile = None 25 | if "BASHCOMP_TEST_LOGFILE" in env: 26 | logfile = open(env["BASHCOMP_TEST_LOGFILE"], "w") 27 | 28 | # all our testing assumes an active conda environment 29 | assert 'CONDA_PREFIX' in env 30 | 31 | # ... with the bash-completion package installed 32 | bash_completion_file = ( 33 | Path(env['CONDA_PREFIX']) 34 | / 'share' / 'bash-completion' / 'bash_completion' 35 | ) 36 | assert bash_completion_file.exists() 37 | 38 | test_dir = Path(PurePath(__file__).parent) 39 | 40 | fixture_dir = test_dir / 'fixture' 41 | assert fixture_dir.exists() 42 | 43 | bashrc_file = fixture_dir / 'bashrc' 44 | assert bashrc_file.exists() 45 | 46 | mamba_file = (test_dir / '..' / 'mamba').resolve() 47 | assert mamba_file.exists() 48 | 49 | os.chdir(fixture_dir) 50 | 51 | env.update( 52 | dict( 53 | PS1=PS1, 54 | INPUTRC="%s/inputrc" % fixture_dir, 55 | TERM="dumb", 56 | LC_COLLATE="C", # to match Python's default locale unaware sort 57 | ) 58 | ) 59 | 60 | # Start bash 61 | bash = pexpect.spawn( 62 | "%s --norc" % os.environ.get("BASHCOMP_TEST_BASH", "bash"), 63 | maxread=os.environ.get("BASHCOMP_TEST_PEXPECT_MAXREAD", 20000), 64 | logfile=logfile, 65 | cwd=fixture_dir, 66 | env=env, 67 | encoding="utf-8", # TODO? or native or...? 68 | # FIXME: Tests shouldn't depend on dimensions, but it's dificult to 69 | # expect robustly enough for Bash to wrap lines anywhere (e.g. inside 70 | # MAGIC_MARK). Increase window width to reduce wrapping. 71 | dimensions=(24, 160), 72 | # TODO? codec_errors="replace", 73 | ) 74 | bash.expect_exact(PS1) 75 | 76 | # Load environment for testing 77 | assert_bash_exec(bash, f"source '{bashrc_file}'") 78 | assert_bash_exec(bash, f"source '{bash_completion_file}'") 79 | assert_bash_exec(bash, f"source '{mamba_file}'") 80 | 81 | # Ensure we have at least one test environment 82 | assert_bash_exec( 83 | bash, 84 | "mamba create -y -n 'mamba-bash-comp-testing'", 85 | want_output=True 86 | ) 87 | 88 | cmd = 'mamba' 89 | request.cls.cmd = cmd 90 | 91 | # We assume that the `bash_completion` package has been installed on 92 | # the testing system. The following will fail if not. 93 | if load_completion_for(bash, cmd): 94 | before_env = get_env(bash) 95 | yield bash 96 | # Not exactly sure why, but some errors leave bash in state where 97 | # getting the env here would fail and trash our test output. So 98 | # reset to a good state first (Ctrl+C, expect prompt). 99 | bash.sendintr() 100 | bash.expect_exact(PS1) 101 | diff_env( 102 | before_env, 103 | get_env(bash), 104 | "", 105 | ) 106 | else: 107 | pytest.fail("Could not load bash completion for mamba") 108 | 109 | # Clean up 110 | assert_bash_exec( 111 | bash, 112 | "mamba env remove -y -n 'mamba-bash-comp-testing'", 113 | want_output=True 114 | ) 115 | bash.close() 116 | if logfile: 117 | logfile.close() 118 | 119 | 120 | def is_bash_type(bash: pexpect.spawn, cmd: Optional[str]) -> bool: 121 | if not cmd: 122 | return False 123 | typecmd = "type %s &>/dev/null && echo -n 0 || echo -n 1" % cmd 124 | bash.sendline(typecmd) 125 | bash.expect_exact(typecmd + "\r\n") 126 | result = bash.expect_exact(["0", "1"]) == 0 127 | bash.expect_exact(PS1) 128 | return result 129 | 130 | 131 | def load_completion_for(bash: pexpect.spawn, cmd: str) -> bool: 132 | try: 133 | # Allow __load_completion to fail so we can test completions 134 | # that are directly loaded in bash_completion without a separate file. 135 | assert_bash_exec(bash, "__load_completion %s || :" % cmd) 136 | assert_bash_exec(bash, "complete -p %s &>/dev/null" % cmd) 137 | except AssertionError: 138 | return False 139 | return True 140 | 141 | 142 | def assert_bash_exec( 143 | bash: pexpect.spawn, cmd: str, want_output: bool = False, want_newline=True 144 | ) -> str: 145 | 146 | # Send command 147 | bash.sendline(cmd) 148 | bash.expect_exact(cmd) 149 | 150 | # Find prompt, output is before it 151 | bash.expect_exact("%s%s" % ("\r\n" if want_newline else "", PS1)) 152 | output = bash.before 153 | 154 | # Retrieve exit status 155 | echo = "echo $?" 156 | bash.sendline(echo) 157 | got = bash.expect( 158 | [ 159 | r"^%s\r\n(\d+)\r\n%s" % (re.escape(echo), re.escape(PS1)), 160 | PS1, 161 | pexpect.EOF, 162 | pexpect.TIMEOUT, 163 | ] 164 | ) 165 | status = bash.match.group(1) if got == 0 else "unknown" 166 | 167 | assert status == "0", 'Error running "%s": exit status=%s, output="%s"' % ( 168 | cmd, 169 | status, 170 | output, 171 | ) 172 | if output: 173 | assert want_output, ( 174 | 'Unexpected output from "%s": exit status=%s, output="%s"' 175 | % (cmd, status, output) 176 | ) 177 | else: 178 | assert not want_output, ( 179 | 'Expected output from "%s": exit status=%s, output="%s"' 180 | % (cmd, status, output) 181 | ) 182 | 183 | return output 184 | 185 | 186 | def get_env(bash: pexpect.spawn) -> List[str]: 187 | return ( 188 | assert_bash_exec( 189 | bash, 190 | "{ (set -o posix ; set); declare -F; shopt -p; set -o; }", 191 | want_output=True, 192 | ) 193 | .strip() 194 | .splitlines() 195 | ) 196 | 197 | 198 | def diff_env(before: List[str], after: List[str], ignore: str): 199 | diff = [ 200 | x 201 | for x in difflib.unified_diff(before, after, n=0, lineterm="") 202 | # Remove unified diff markers: 203 | if not re.search(r"^(---|\+\+\+|@@ )", x) 204 | # Ignore variables expected to change: 205 | and not re.search("^[-+](_|PPID|BASH_REMATCH|OLDPWD)=", x) 206 | # Ignore likely completion functions added by us: 207 | and not re.search(r"^\+declare -f _.+", x) 208 | # ...and additional specified things: 209 | and not re.search(ignore or "^$", x) 210 | ] 211 | # For some reason, COMP_WORDBREAKS gets added to the list after 212 | # saving. Remove its changes, and note that it may take two lines. 213 | for i in range(0, len(diff)): 214 | if re.match("^[-+]COMP_WORDBREAKS=", diff[i]): 215 | if i < len(diff) and not re.match(r"^\+[\w]+=", diff[i + 1]): 216 | del diff[i + 1] 217 | del diff[i] 218 | break 219 | assert not diff, "Environment should not be modified" 220 | 221 | 222 | class CompletionResult: 223 | """ 224 | Class to hold completion results. 225 | """ 226 | 227 | def __init__(self, output: str, items: Optional[Iterable[str]] = None): 228 | """ 229 | When items are specified, they are used as the base for comparisons 230 | provided by this class. When not, regular expressions are used instead. 231 | This is because it is not always possible to unambiguously split a 232 | completion output string into individual items, for example when the 233 | items contain whitespace. 234 | 235 | :param output: All completion output as-is. 236 | :param items: Completions as individual items. Should be specified 237 | only in cases where the completions are robustly known to be 238 | exactly the specified ones. 239 | """ 240 | self.output = output 241 | self._items = None if items is None else sorted(items) 242 | 243 | def endswith(self, suffix: str) -> bool: 244 | return self.output.endswith(suffix) 245 | 246 | def __eq__(self, expected: Union[str, Iterable[str]]) -> bool: 247 | """ 248 | Returns True if completion contains expected items, and no others. 249 | 250 | Defining __eq__ this way is quite ugly, but facilitates concise 251 | testing code. 252 | """ 253 | expiter = [expected] if isinstance(expected, str) else expected 254 | if self._items is not None: 255 | return self._items == expiter 256 | return bool( 257 | re.match( 258 | r"^\s*" + r"\s+".join(re.escape(x) for x in expiter) + r"\s*$", 259 | self.output, 260 | ) 261 | ) 262 | 263 | def __contains__(self, item: str) -> bool: 264 | if self._items is not None: 265 | return item in self._items 266 | return bool( 267 | re.search(r"(^|\s)%s(\s|$)" % re.escape(item), self.output) 268 | ) 269 | 270 | def __iter__(self) -> Iterable[str]: 271 | """ 272 | Note that iteration over items may not be accurate when items were not 273 | specified to the constructor, if individual items in the output contain 274 | whitespace. In those cases, it errs on the side of possibly returning 275 | more items than there actually are, and intends to never return fewer. 276 | """ 277 | return iter( 278 | self._items 279 | if self._items is not None 280 | else re.split(r" {2,}|\r\n", self.output.strip()) 281 | ) 282 | 283 | def __len__(self) -> int: 284 | """ 285 | Uses __iter__, see caveat in it. While possibly inaccurate, this is 286 | good enough for truthiness checks. 287 | """ 288 | return len(list(iter(self))) 289 | 290 | def __repr__(self) -> str: 291 | return "" % list(self) 292 | 293 | 294 | def assert_complete( 295 | bash: pexpect.spawn, cmd: str, **kwargs 296 | ) -> CompletionResult: 297 | skipif = kwargs.get("skipif") 298 | if skipif: 299 | try: 300 | assert_bash_exec(bash, skipif) 301 | except AssertionError: 302 | pass 303 | else: 304 | pytest.skip(skipif) 305 | xfail = kwargs.get("xfail") 306 | if xfail: 307 | try: 308 | assert_bash_exec(bash, xfail) 309 | except AssertionError: 310 | pass 311 | else: 312 | pytest.xfail(xfail) 313 | cwd = kwargs.get("cwd") 314 | if cwd: 315 | assert_bash_exec(bash, "cd '%s'" % cwd) 316 | env_prefix = "_BASHCOMP_TEST_" 317 | env = kwargs.get("env", {}) 318 | if env: 319 | # Back up environment and apply new one 320 | assert_bash_exec( 321 | bash, 322 | " ".join('%s%s="$%s"' % (env_prefix, k, k) for k in env.keys()), 323 | ) 324 | assert_bash_exec( 325 | bash, 326 | "export %s" % " ".join("%s=%s" % (k, v) for k, v in env.items()), 327 | ) 328 | bash.send(cmd + "\t") 329 | bash.expect_exact(cmd) 330 | bash.send(MAGIC_MARK) 331 | got = bash.expect( 332 | [ 333 | # 0: multiple lines, result in .before 334 | r"\r\n" + re.escape(PS1 + cmd) + ".*" + MAGIC_MARK, 335 | # 1: no completion 336 | r"^" + MAGIC_MARK, 337 | # 2: on same line, result in .match 338 | r"^([^\r]+)%s$" % MAGIC_MARK, 339 | pexpect.EOF, 340 | pexpect.TIMEOUT, 341 | ] 342 | ) 343 | if got == 0: 344 | output = bash.before 345 | if output.endswith(MAGIC_MARK): 346 | output = bash.before[: -len(MAGIC_MARK)] 347 | result = CompletionResult(output) 348 | elif got == 2: 349 | output = bash.match.group(1) 350 | result = CompletionResult(output, [shlex.split(cmd + output)[-1]]) 351 | else: 352 | # TODO: warn about EOF/TIMEOUT? 353 | result = CompletionResult("", []) 354 | bash.sendintr() 355 | bash.expect_exact(PS1) 356 | if env: 357 | # Restore environment, and clean up backup 358 | # TODO: Test with declare -p if a var was set, backup only if yes, and 359 | # similarly restore only backed up vars. Should remove some need 360 | # for ignore_env. 361 | assert_bash_exec( 362 | bash, 363 | "export %s" 364 | % " ".join('%s="$%s%s"' % (k, env_prefix, k) for k in env.keys()), 365 | ) 366 | assert_bash_exec( 367 | bash, 368 | "unset -v %s" 369 | % " ".join("%s%s" % (env_prefix, k) for k in env.keys()), 370 | ) 371 | if cwd: 372 | assert_bash_exec(bash, "cd - >/dev/null") 373 | return result 374 | 375 | 376 | @pytest.fixture 377 | def completion(request, bash: pexpect.spawn) -> CompletionResult: 378 | marker = request.node.get_closest_marker("complete") 379 | if not marker: 380 | return CompletionResult("", []) 381 | for pre_cmd in marker.kwargs.get("pre_cmds", []): 382 | assert_bash_exec(bash, pre_cmd) 383 | cmd = getattr(request.cls, "cmd", None) 384 | if marker.kwargs.get("require_longopt"): 385 | # longopt completions require both command presence and that it 386 | # responds something useful to --help 387 | if "require_cmd" not in marker.kwargs: 388 | marker.kwargs["require_cmd"] = True 389 | if "xfail" not in marker.kwargs: 390 | marker.kwargs["xfail"] = ( 391 | "! %s --help &>/dev/null || " 392 | "! %s --help 2>&1 | command grep -qF -- --help" 393 | ) % ((cmd,) * 2) 394 | if marker.kwargs.get("require_cmd") and not is_bash_type(bash, cmd): 395 | pytest.skip("Command not found") 396 | return assert_complete(bash, marker.args[0], **marker.kwargs) 397 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 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. 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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. 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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 | --------------------------------------------------------------------------------