| 1 | import os, os.path, re |
| 2 | from datetime import datetime, timedelta, tzinfo |
| 3 | |
| 4 | from stgit import exception, run, utils |
| 5 | from stgit.config import config |
| 6 | |
| 7 | class RepositoryException(exception.StgException): |
| 8 | pass |
| 9 | |
| 10 | class DateException(exception.StgException): |
| 11 | def __init__(self, string, type): |
| 12 | exception.StgException.__init__( |
| 13 | self, '"%s" is not a valid %s' % (string, type)) |
| 14 | |
| 15 | class DetachedHeadException(RepositoryException): |
| 16 | def __init__(self): |
| 17 | RepositoryException.__init__(self, 'Not on any branch') |
| 18 | |
| 19 | class Repr(object): |
| 20 | def __repr__(self): |
| 21 | return str(self) |
| 22 | |
| 23 | class NoValue(object): |
| 24 | pass |
| 25 | |
| 26 | def make_defaults(defaults): |
| 27 | def d(val, attr): |
| 28 | if val != NoValue: |
| 29 | return val |
| 30 | elif defaults != NoValue: |
| 31 | return getattr(defaults, attr) |
| 32 | else: |
| 33 | return None |
| 34 | return d |
| 35 | |
| 36 | class TimeZone(tzinfo, Repr): |
| 37 | def __init__(self, tzstring): |
| 38 | m = re.match(r'^([+-])(\d{2}):?(\d{2})$', tzstring) |
| 39 | if not m: |
| 40 | raise DateException(tzstring, 'time zone') |
| 41 | sign = int(m.group(1) + '1') |
| 42 | try: |
| 43 | self.__offset = timedelta(hours = sign*int(m.group(2)), |
| 44 | minutes = sign*int(m.group(3))) |
| 45 | except OverflowError: |
| 46 | raise DateException(tzstring, 'time zone') |
| 47 | self.__name = tzstring |
| 48 | def utcoffset(self, dt): |
| 49 | return self.__offset |
| 50 | def tzname(self, dt): |
| 51 | return self.__name |
| 52 | def dst(self, dt): |
| 53 | return timedelta(0) |
| 54 | def __str__(self): |
| 55 | return self.__name |
| 56 | |
| 57 | class Date(Repr): |
| 58 | """Immutable.""" |
| 59 | def __init__(self, datestring): |
| 60 | # Try git-formatted date. |
| 61 | m = re.match(r'^(\d+)\s+([+-]\d\d:?\d\d)$', datestring) |
| 62 | if m: |
| 63 | try: |
| 64 | self.__time = datetime.fromtimestamp(int(m.group(1)), |
| 65 | TimeZone(m.group(2))) |
| 66 | except ValueError: |
| 67 | raise DateException(datestring, 'date') |
| 68 | return |
| 69 | |
| 70 | # Try iso-formatted date. |
| 71 | m = re.match(r'^(\d{4})-(\d{2})-(\d{2})\s+(\d{2}):(\d{2}):(\d{2})\s+' |
| 72 | + r'([+-]\d\d:?\d\d)$', datestring) |
| 73 | if m: |
| 74 | try: |
| 75 | self.__time = datetime( |
| 76 | *[int(m.group(i + 1)) for i in xrange(6)], |
| 77 | **{'tzinfo': TimeZone(m.group(7))}) |
| 78 | except ValueError: |
| 79 | raise DateException(datestring, 'date') |
| 80 | return |
| 81 | |
| 82 | raise DateException(datestring, 'date') |
| 83 | def __str__(self): |
| 84 | return self.isoformat() |
| 85 | def isoformat(self): |
| 86 | """Human-friendly ISO 8601 format.""" |
| 87 | return '%s %s' % (self.__time.replace(tzinfo = None).isoformat(' '), |
| 88 | self.__time.tzinfo) |
| 89 | @classmethod |
| 90 | def maybe(cls, datestring): |
| 91 | if datestring in [None, NoValue]: |
| 92 | return datestring |
| 93 | return cls(datestring) |
| 94 | |
| 95 | class Person(Repr): |
| 96 | """Immutable.""" |
| 97 | def __init__(self, name = NoValue, email = NoValue, |
| 98 | date = NoValue, defaults = NoValue): |
| 99 | d = make_defaults(defaults) |
| 100 | self.__name = d(name, 'name') |
| 101 | self.__email = d(email, 'email') |
| 102 | self.__date = d(date, 'date') |
| 103 | assert isinstance(self.__date, Date) or self.__date in [None, NoValue] |
| 104 | name = property(lambda self: self.__name) |
| 105 | email = property(lambda self: self.__email) |
| 106 | date = property(lambda self: self.__date) |
| 107 | def set_name(self, name): |
| 108 | return type(self)(name = name, defaults = self) |
| 109 | def set_email(self, email): |
| 110 | return type(self)(email = email, defaults = self) |
| 111 | def set_date(self, date): |
| 112 | return type(self)(date = date, defaults = self) |
| 113 | def __str__(self): |
| 114 | return '%s <%s> %s' % (self.name, self.email, self.date) |
| 115 | @classmethod |
| 116 | def parse(cls, s): |
| 117 | m = re.match(r'^([^<]*)<([^>]*)>\s+(\d+\s+[+-]\d{4})$', s) |
| 118 | assert m |
| 119 | name = m.group(1).strip() |
| 120 | email = m.group(2) |
| 121 | date = Date(m.group(3)) |
| 122 | return cls(name, email, date) |
| 123 | @classmethod |
| 124 | def user(cls): |
| 125 | if not hasattr(cls, '__user'): |
| 126 | cls.__user = cls(name = config.get('user.name'), |
| 127 | email = config.get('user.email')) |
| 128 | return cls.__user |
| 129 | @classmethod |
| 130 | def author(cls): |
| 131 | if not hasattr(cls, '__author'): |
| 132 | cls.__author = cls( |
| 133 | name = os.environ.get('GIT_AUTHOR_NAME', NoValue), |
| 134 | email = os.environ.get('GIT_AUTHOR_EMAIL', NoValue), |
| 135 | date = Date.maybe(os.environ.get('GIT_AUTHOR_DATE', NoValue)), |
| 136 | defaults = cls.user()) |
| 137 | return cls.__author |
| 138 | @classmethod |
| 139 | def committer(cls): |
| 140 | if not hasattr(cls, '__committer'): |
| 141 | cls.__committer = cls( |
| 142 | name = os.environ.get('GIT_COMMITTER_NAME', NoValue), |
| 143 | email = os.environ.get('GIT_COMMITTER_EMAIL', NoValue), |
| 144 | date = Date.maybe( |
| 145 | os.environ.get('GIT_COMMITTER_DATE', NoValue)), |
| 146 | defaults = cls.user()) |
| 147 | return cls.__committer |
| 148 | |
| 149 | class Tree(Repr): |
| 150 | """Immutable.""" |
| 151 | def __init__(self, sha1): |
| 152 | self.__sha1 = sha1 |
| 153 | sha1 = property(lambda self: self.__sha1) |
| 154 | def __str__(self): |
| 155 | return 'Tree<%s>' % self.sha1 |
| 156 | |
| 157 | class Commitdata(Repr): |
| 158 | """Immutable.""" |
| 159 | def __init__(self, tree = NoValue, parents = NoValue, author = NoValue, |
| 160 | committer = NoValue, message = NoValue, defaults = NoValue): |
| 161 | d = make_defaults(defaults) |
| 162 | self.__tree = d(tree, 'tree') |
| 163 | self.__parents = d(parents, 'parents') |
| 164 | self.__author = d(author, 'author') |
| 165 | self.__committer = d(committer, 'committer') |
| 166 | self.__message = d(message, 'message') |
| 167 | tree = property(lambda self: self.__tree) |
| 168 | parents = property(lambda self: self.__parents) |
| 169 | @property |
| 170 | def parent(self): |
| 171 | assert len(self.__parents) == 1 |
| 172 | return self.__parents[0] |
| 173 | author = property(lambda self: self.__author) |
| 174 | committer = property(lambda self: self.__committer) |
| 175 | message = property(lambda self: self.__message) |
| 176 | def set_tree(self, tree): |
| 177 | return type(self)(tree = tree, defaults = self) |
| 178 | def set_parents(self, parents): |
| 179 | return type(self)(parents = parents, defaults = self) |
| 180 | def add_parent(self, parent): |
| 181 | return type(self)(parents = list(self.parents or []) + [parent], |
| 182 | defaults = self) |
| 183 | def set_parent(self, parent): |
| 184 | return self.set_parents([parent]) |
| 185 | def set_author(self, author): |
| 186 | return type(self)(author = author, defaults = self) |
| 187 | def set_committer(self, committer): |
| 188 | return type(self)(committer = committer, defaults = self) |
| 189 | def set_message(self, message): |
| 190 | return type(self)(message = message, defaults = self) |
| 191 | def is_nochange(self): |
| 192 | return len(self.parents) == 1 and self.tree == self.parent.data.tree |
| 193 | def __str__(self): |
| 194 | if self.tree == None: |
| 195 | tree = None |
| 196 | else: |
| 197 | tree = self.tree.sha1 |
| 198 | if self.parents == None: |
| 199 | parents = None |
| 200 | else: |
| 201 | parents = [p.sha1 for p in self.parents] |
| 202 | return ('Commitdata<tree: %s, parents: %s, author: %s,' |
| 203 | ' committer: %s, message: "%s">' |
| 204 | ) % (tree, parents, self.author, self.committer, self.message) |
| 205 | @classmethod |
| 206 | def parse(cls, repository, s): |
| 207 | cd = cls(parents = []) |
| 208 | lines = list(s.splitlines(True)) |
| 209 | for i in xrange(len(lines)): |
| 210 | line = lines[i].strip() |
| 211 | if not line: |
| 212 | return cd.set_message(''.join(lines[i+1:])) |
| 213 | key, value = line.split(None, 1) |
| 214 | if key == 'tree': |
| 215 | cd = cd.set_tree(repository.get_tree(value)) |
| 216 | elif key == 'parent': |
| 217 | cd = cd.add_parent(repository.get_commit(value)) |
| 218 | elif key == 'author': |
| 219 | cd = cd.set_author(Person.parse(value)) |
| 220 | elif key == 'committer': |
| 221 | cd = cd.set_committer(Person.parse(value)) |
| 222 | else: |
| 223 | assert False |
| 224 | assert False |
| 225 | |
| 226 | class Commit(Repr): |
| 227 | """Immutable.""" |
| 228 | def __init__(self, repository, sha1): |
| 229 | self.__sha1 = sha1 |
| 230 | self.__repository = repository |
| 231 | self.__data = None |
| 232 | sha1 = property(lambda self: self.__sha1) |
| 233 | @property |
| 234 | def data(self): |
| 235 | if self.__data == None: |
| 236 | self.__data = Commitdata.parse( |
| 237 | self.__repository, |
| 238 | self.__repository.cat_object(self.sha1)) |
| 239 | return self.__data |
| 240 | def __str__(self): |
| 241 | return 'Commit<sha1: %s, data: %s>' % (self.sha1, self.__data) |
| 242 | |
| 243 | class Refs(object): |
| 244 | def __init__(self, repository): |
| 245 | self.__repository = repository |
| 246 | self.__refs = None |
| 247 | def __cache_refs(self): |
| 248 | self.__refs = {} |
| 249 | for line in self.__repository.run(['git', 'show-ref']).output_lines(): |
| 250 | m = re.match(r'^([0-9a-f]{40})\s+(\S+)$', line) |
| 251 | sha1, ref = m.groups() |
| 252 | self.__refs[ref] = sha1 |
| 253 | def get(self, ref): |
| 254 | """Throws KeyError if ref doesn't exist.""" |
| 255 | if self.__refs == None: |
| 256 | self.__cache_refs() |
| 257 | return self.__repository.get_commit(self.__refs[ref]) |
| 258 | def exists(self, ref): |
| 259 | try: |
| 260 | self.get(ref) |
| 261 | except KeyError: |
| 262 | return False |
| 263 | else: |
| 264 | return True |
| 265 | def set(self, ref, commit, msg): |
| 266 | if self.__refs == None: |
| 267 | self.__cache_refs() |
| 268 | old_sha1 = self.__refs.get(ref, '0'*40) |
| 269 | new_sha1 = commit.sha1 |
| 270 | if old_sha1 != new_sha1: |
| 271 | self.__repository.run(['git', 'update-ref', '-m', msg, |
| 272 | ref, new_sha1, old_sha1]).no_output() |
| 273 | self.__refs[ref] = new_sha1 |
| 274 | def delete(self, ref): |
| 275 | if self.__refs == None: |
| 276 | self.__cache_refs() |
| 277 | self.__repository.run(['git', 'update-ref', |
| 278 | '-d', ref, self.__refs[ref]]).no_output() |
| 279 | del self.__refs[ref] |
| 280 | |
| 281 | class ObjectCache(object): |
| 282 | """Cache for Python objects, for making sure that we create only one |
| 283 | Python object per git object.""" |
| 284 | def __init__(self, create): |
| 285 | self.__objects = {} |
| 286 | self.__create = create |
| 287 | def __getitem__(self, name): |
| 288 | if not name in self.__objects: |
| 289 | self.__objects[name] = self.__create(name) |
| 290 | return self.__objects[name] |
| 291 | def __contains__(self, name): |
| 292 | return name in self.__objects |
| 293 | def __setitem__(self, name, val): |
| 294 | assert not name in self.__objects |
| 295 | self.__objects[name] = val |
| 296 | |
| 297 | class RunWithEnv(object): |
| 298 | def run(self, args, env = {}): |
| 299 | return run.Run(*args).env(utils.add_dict(self.env, env)) |
| 300 | |
| 301 | class RunWithEnvCwd(RunWithEnv): |
| 302 | def run(self, args, env = {}): |
| 303 | return RunWithEnv.run(self, args, env).cwd(self.cwd) |
| 304 | |
| 305 | class Repository(RunWithEnv): |
| 306 | def __init__(self, directory): |
| 307 | self.__git_dir = directory |
| 308 | self.__refs = Refs(self) |
| 309 | self.__trees = ObjectCache(lambda sha1: Tree(sha1)) |
| 310 | self.__commits = ObjectCache(lambda sha1: Commit(self, sha1)) |
| 311 | self.__default_index = None |
| 312 | self.__default_worktree = None |
| 313 | self.__default_iw = None |
| 314 | env = property(lambda self: { 'GIT_DIR': self.__git_dir }) |
| 315 | @classmethod |
| 316 | def default(cls): |
| 317 | """Return the default repository.""" |
| 318 | try: |
| 319 | return cls(run.Run('git', 'rev-parse', '--git-dir' |
| 320 | ).output_one_line()) |
| 321 | except run.RunException: |
| 322 | raise RepositoryException('Cannot find git repository') |
| 323 | @property |
| 324 | def default_index(self): |
| 325 | if self.__default_index == None: |
| 326 | self.__default_index = Index( |
| 327 | self, (os.environ.get('GIT_INDEX_FILE', None) |
| 328 | or os.path.join(self.__git_dir, 'index'))) |
| 329 | return self.__default_index |
| 330 | def temp_index(self): |
| 331 | return Index(self, self.__git_dir) |
| 332 | @property |
| 333 | def default_worktree(self): |
| 334 | if self.__default_worktree == None: |
| 335 | path = os.environ.get('GIT_WORK_TREE', None) |
| 336 | if not path: |
| 337 | o = run.Run('git', 'rev-parse', '--show-cdup').output_lines() |
| 338 | o = o or ['.'] |
| 339 | assert len(o) == 1 |
| 340 | path = o[0] |
| 341 | self.__default_worktree = Worktree(path) |
| 342 | return self.__default_worktree |
| 343 | @property |
| 344 | def default_iw(self): |
| 345 | if self.__default_iw == None: |
| 346 | self.__default_iw = IndexAndWorktree(self.default_index, |
| 347 | self.default_worktree) |
| 348 | return self.__default_iw |
| 349 | directory = property(lambda self: self.__git_dir) |
| 350 | refs = property(lambda self: self.__refs) |
| 351 | def cat_object(self, sha1): |
| 352 | return self.run(['git', 'cat-file', '-p', sha1]).raw_output() |
| 353 | def rev_parse(self, rev): |
| 354 | try: |
| 355 | return self.get_commit(self.run( |
| 356 | ['git', 'rev-parse', '%s^{commit}' % rev] |
| 357 | ).output_one_line()) |
| 358 | except run.RunException: |
| 359 | raise RepositoryException('%s: No such revision' % rev) |
| 360 | def get_tree(self, sha1): |
| 361 | return self.__trees[sha1] |
| 362 | def get_commit(self, sha1): |
| 363 | return self.__commits[sha1] |
| 364 | def commit(self, commitdata): |
| 365 | c = ['git', 'commit-tree', commitdata.tree.sha1] |
| 366 | for p in commitdata.parents: |
| 367 | c.append('-p') |
| 368 | c.append(p.sha1) |
| 369 | env = {} |
| 370 | for p, v1 in ((commitdata.author, 'AUTHOR'), |
| 371 | (commitdata.committer, 'COMMITTER')): |
| 372 | if p != None: |
| 373 | for attr, v2 in (('name', 'NAME'), ('email', 'EMAIL'), |
| 374 | ('date', 'DATE')): |
| 375 | if getattr(p, attr) != None: |
| 376 | env['GIT_%s_%s' % (v1, v2)] = str(getattr(p, attr)) |
| 377 | sha1 = self.run(c, env = env).raw_input(commitdata.message |
| 378 | ).output_one_line() |
| 379 | return self.get_commit(sha1) |
| 380 | @property |
| 381 | def head(self): |
| 382 | try: |
| 383 | return self.run(['git', 'symbolic-ref', '-q', 'HEAD'] |
| 384 | ).output_one_line() |
| 385 | except run.RunException: |
| 386 | raise DetachedHeadException() |
| 387 | def set_head(self, ref, msg): |
| 388 | self.run(['git', 'symbolic-ref', '-m', msg, 'HEAD', ref]).no_output() |
| 389 | def simple_merge(self, base, ours, theirs): |
| 390 | """Given three trees, tries to do an in-index merge in a temporary |
| 391 | index with a temporary index. Returns the result tree, or None if |
| 392 | the merge failed (due to conflicts).""" |
| 393 | assert isinstance(base, Tree) |
| 394 | assert isinstance(ours, Tree) |
| 395 | assert isinstance(theirs, Tree) |
| 396 | |
| 397 | # Take care of the really trivial cases. |
| 398 | if base == ours: |
| 399 | return theirs |
| 400 | if base == theirs: |
| 401 | return ours |
| 402 | if ours == theirs: |
| 403 | return ours |
| 404 | |
| 405 | index = self.temp_index() |
| 406 | try: |
| 407 | index.merge(base, ours, theirs) |
| 408 | try: |
| 409 | return index.write_tree() |
| 410 | except MergeException: |
| 411 | return None |
| 412 | finally: |
| 413 | index.delete() |
| 414 | def apply(self, tree, patch_text): |
| 415 | """Given a tree and a patch, will either return the new tree that |
| 416 | results when the patch is applied, or None if the patch |
| 417 | couldn't be applied.""" |
| 418 | assert isinstance(tree, Tree) |
| 419 | if not patch_text: |
| 420 | return tree |
| 421 | index = self.temp_index() |
| 422 | try: |
| 423 | index.read_tree(tree) |
| 424 | try: |
| 425 | index.apply(patch_text) |
| 426 | return index.write_tree() |
| 427 | except MergeException: |
| 428 | return None |
| 429 | finally: |
| 430 | index.delete() |
| 431 | def diff_tree(self, t1, t2, diff_opts): |
| 432 | assert isinstance(t1, Tree) |
| 433 | assert isinstance(t2, Tree) |
| 434 | return self.run(['git', 'diff-tree', '-p'] + list(diff_opts) |
| 435 | + [t1.sha1, t2.sha1]).raw_output() |
| 436 | |
| 437 | class MergeException(exception.StgException): |
| 438 | pass |
| 439 | |
| 440 | class MergeConflictException(MergeException): |
| 441 | pass |
| 442 | |
| 443 | class Index(RunWithEnv): |
| 444 | def __init__(self, repository, filename): |
| 445 | self.__repository = repository |
| 446 | if os.path.isdir(filename): |
| 447 | # Create a temp index in the given directory. |
| 448 | self.__filename = os.path.join( |
| 449 | filename, 'index.temp-%d-%x' % (os.getpid(), id(self))) |
| 450 | self.delete() |
| 451 | else: |
| 452 | self.__filename = filename |
| 453 | env = property(lambda self: utils.add_dict( |
| 454 | self.__repository.env, { 'GIT_INDEX_FILE': self.__filename })) |
| 455 | def read_tree(self, tree): |
| 456 | self.run(['git', 'read-tree', tree.sha1]).no_output() |
| 457 | def write_tree(self): |
| 458 | try: |
| 459 | return self.__repository.get_tree( |
| 460 | self.run(['git', 'write-tree']).discard_stderr( |
| 461 | ).output_one_line()) |
| 462 | except run.RunException: |
| 463 | raise MergeException('Conflicting merge') |
| 464 | def is_clean(self): |
| 465 | try: |
| 466 | self.run(['git', 'update-index', '--refresh']).discard_output() |
| 467 | except run.RunException: |
| 468 | return False |
| 469 | else: |
| 470 | return True |
| 471 | def merge(self, base, ours, theirs): |
| 472 | """In-index merge, no worktree involved.""" |
| 473 | self.run(['git', 'read-tree', '-m', '-i', '--aggressive', |
| 474 | base.sha1, ours.sha1, theirs.sha1]).no_output() |
| 475 | def apply(self, patch_text): |
| 476 | """In-index patch application, no worktree involved.""" |
| 477 | try: |
| 478 | self.run(['git', 'apply', '--cached'] |
| 479 | ).raw_input(patch_text).no_output() |
| 480 | except run.RunException: |
| 481 | raise MergeException('Patch does not apply cleanly') |
| 482 | def delete(self): |
| 483 | if os.path.isfile(self.__filename): |
| 484 | os.remove(self.__filename) |
| 485 | def conflicts(self): |
| 486 | """The set of conflicting paths.""" |
| 487 | paths = set() |
| 488 | for line in self.run(['git', 'ls-files', '-z', '--unmerged'] |
| 489 | ).raw_output().split('\0')[:-1]: |
| 490 | stat, path = line.split('\t', 1) |
| 491 | paths.add(path) |
| 492 | return paths |
| 493 | |
| 494 | class Worktree(object): |
| 495 | def __init__(self, directory): |
| 496 | self.__directory = directory |
| 497 | env = property(lambda self: { 'GIT_WORK_TREE': '.' }) |
| 498 | directory = property(lambda self: self.__directory) |
| 499 | |
| 500 | class CheckoutException(exception.StgException): |
| 501 | pass |
| 502 | |
| 503 | class IndexAndWorktree(RunWithEnvCwd): |
| 504 | def __init__(self, index, worktree): |
| 505 | self.__index = index |
| 506 | self.__worktree = worktree |
| 507 | index = property(lambda self: self.__index) |
| 508 | env = property(lambda self: utils.add_dict(self.__index.env, |
| 509 | self.__worktree.env)) |
| 510 | cwd = property(lambda self: self.__worktree.directory) |
| 511 | def checkout(self, old_tree, new_tree): |
| 512 | # TODO: Optionally do a 3-way instead of doing nothing when we |
| 513 | # have a problem. Or maybe we should stash changes in a patch? |
| 514 | assert isinstance(old_tree, Tree) |
| 515 | assert isinstance(new_tree, Tree) |
| 516 | try: |
| 517 | self.run(['git', 'read-tree', '-u', '-m', |
| 518 | '--exclude-per-directory=.gitignore', |
| 519 | old_tree.sha1, new_tree.sha1] |
| 520 | ).discard_output() |
| 521 | except run.RunException: |
| 522 | raise CheckoutException('Index/workdir dirty') |
| 523 | def merge(self, base, ours, theirs): |
| 524 | assert isinstance(base, Tree) |
| 525 | assert isinstance(ours, Tree) |
| 526 | assert isinstance(theirs, Tree) |
| 527 | try: |
| 528 | r = self.run(['git', 'merge-recursive', base.sha1, '--', ours.sha1, |
| 529 | theirs.sha1], |
| 530 | env = { 'GITHEAD_%s' % base.sha1: 'ancestor', |
| 531 | 'GITHEAD_%s' % ours.sha1: 'current', |
| 532 | 'GITHEAD_%s' % theirs.sha1: 'patched'}) |
| 533 | r.discard_output() |
| 534 | except run.RunException, e: |
| 535 | if r.exitcode == 1: |
| 536 | raise MergeConflictException() |
| 537 | else: |
| 538 | raise MergeException('Index/worktree dirty') |
| 539 | def changed_files(self): |
| 540 | return self.run(['git', 'diff-files', '--name-only']).output_lines() |
| 541 | def update_index(self, files): |
| 542 | self.run(['git', 'update-index', '--remove', '-z', '--stdin'] |
| 543 | ).input_nulterm(files).discard_output() |