| 1 | """Function/variables common to all the commands |
| 2 | """ |
| 3 | |
| 4 | __copyright__ = """ |
| 5 | Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com> |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License version 2 as |
| 9 | published by the Free Software Foundation. |
| 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, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | """ |
| 20 | |
| 21 | import sys, os, os.path, re |
| 22 | from optparse import OptionParser, make_option |
| 23 | |
| 24 | from stgit.exception import * |
| 25 | from stgit.utils import * |
| 26 | from stgit.out import * |
| 27 | from stgit.run import * |
| 28 | from stgit import stack, git, basedir |
| 29 | from stgit.config import config, file_extensions |
| 30 | from stgit.lib import stack as libstack |
| 31 | |
| 32 | # Command exception class |
| 33 | class CmdException(StgException): |
| 34 | pass |
| 35 | |
| 36 | # Utility functions |
| 37 | class RevParseException(StgException): |
| 38 | """Revision spec parse error.""" |
| 39 | pass |
| 40 | |
| 41 | def parse_rev(rev): |
| 42 | """Parse a revision specification into its |
| 43 | patchname@branchname//patch_id parts. If no branch name has a slash |
| 44 | in it, also accept / instead of //.""" |
| 45 | if '/' in ''.join(git.get_heads()): |
| 46 | # We have branch names with / in them. |
| 47 | branch_chars = r'[^@]' |
| 48 | patch_id_mark = r'//' |
| 49 | else: |
| 50 | # No / in branch names. |
| 51 | branch_chars = r'[^@/]' |
| 52 | patch_id_mark = r'(/|//)' |
| 53 | patch_re = r'(?P<patch>[^@/]+)' |
| 54 | branch_re = r'@(?P<branch>%s+)' % branch_chars |
| 55 | patch_id_re = r'%s(?P<patch_id>[a-z.]*)' % patch_id_mark |
| 56 | |
| 57 | # Try //patch_id. |
| 58 | m = re.match(r'^%s$' % patch_id_re, rev) |
| 59 | if m: |
| 60 | return None, None, m.group('patch_id') |
| 61 | |
| 62 | # Try path[@branch]//patch_id. |
| 63 | m = re.match(r'^%s(%s)?%s$' % (patch_re, branch_re, patch_id_re), rev) |
| 64 | if m: |
| 65 | return m.group('patch'), m.group('branch'), m.group('patch_id') |
| 66 | |
| 67 | # Try patch[@branch]. |
| 68 | m = re.match(r'^%s(%s)?$' % (patch_re, branch_re), rev) |
| 69 | if m: |
| 70 | return m.group('patch'), m.group('branch'), None |
| 71 | |
| 72 | # No, we can't parse that. |
| 73 | raise RevParseException |
| 74 | |
| 75 | def git_id(crt_series, rev): |
| 76 | """Return the GIT id |
| 77 | """ |
| 78 | if not rev: |
| 79 | return None |
| 80 | |
| 81 | # try a GIT revision first |
| 82 | try: |
| 83 | return git.rev_parse(rev + '^{commit}') |
| 84 | except git.GitException: |
| 85 | pass |
| 86 | |
| 87 | # try an StGIT patch name |
| 88 | try: |
| 89 | patch, branch, patch_id = parse_rev(rev) |
| 90 | if branch == None: |
| 91 | series = crt_series |
| 92 | else: |
| 93 | series = stack.Series(branch) |
| 94 | if patch == None: |
| 95 | patch = series.get_current() |
| 96 | if not patch: |
| 97 | raise CmdException, 'No patches applied' |
| 98 | if patch in series.get_applied() or patch in series.get_unapplied() or \ |
| 99 | patch in series.get_hidden(): |
| 100 | if patch_id in ['top', '', None]: |
| 101 | return series.get_patch(patch).get_top() |
| 102 | elif patch_id == 'bottom': |
| 103 | return series.get_patch(patch).get_bottom() |
| 104 | elif patch_id == 'top.old': |
| 105 | return series.get_patch(patch).get_old_top() |
| 106 | elif patch_id == 'bottom.old': |
| 107 | return series.get_patch(patch).get_old_bottom() |
| 108 | elif patch_id == 'log': |
| 109 | return series.get_patch(patch).get_log() |
| 110 | if patch == 'base' and patch_id == None: |
| 111 | return series.get_base() |
| 112 | except RevParseException: |
| 113 | pass |
| 114 | except stack.StackException: |
| 115 | pass |
| 116 | |
| 117 | raise CmdException, 'Unknown patch or revision: %s' % rev |
| 118 | |
| 119 | def check_local_changes(): |
| 120 | if git.local_changes(): |
| 121 | raise CmdException, \ |
| 122 | 'local changes in the tree. Use "refresh" or "status --reset"' |
| 123 | |
| 124 | def check_head_top_equal(crt_series): |
| 125 | if not crt_series.head_top_equal(): |
| 126 | raise CmdException( |
| 127 | """HEAD and top are not the same. This can happen if you |
| 128 | modify a branch with git. "stg repair --help" explains |
| 129 | more about what to do next.""") |
| 130 | |
| 131 | def check_conflicts(): |
| 132 | if git.get_conflicts(): |
| 133 | raise CmdException, \ |
| 134 | 'Unsolved conflicts. Please resolve them first or\n' \ |
| 135 | ' revert the changes with "status --reset"' |
| 136 | |
| 137 | def print_crt_patch(crt_series, branch = None): |
| 138 | if not branch: |
| 139 | patch = crt_series.get_current() |
| 140 | else: |
| 141 | patch = stack.Series(branch).get_current() |
| 142 | |
| 143 | if patch: |
| 144 | out.info('Now at patch "%s"' % patch) |
| 145 | else: |
| 146 | out.info('No patches applied') |
| 147 | |
| 148 | def resolved_all(reset = None): |
| 149 | conflicts = git.get_conflicts() |
| 150 | git.resolved(conflicts, reset) |
| 151 | |
| 152 | def push_patches(crt_series, patches, check_merged = False): |
| 153 | """Push multiple patches onto the stack. This function is shared |
| 154 | between the push and pull commands |
| 155 | """ |
| 156 | forwarded = crt_series.forward_patches(patches) |
| 157 | if forwarded > 1: |
| 158 | out.info('Fast-forwarded patches "%s" - "%s"' |
| 159 | % (patches[0], patches[forwarded - 1])) |
| 160 | elif forwarded == 1: |
| 161 | out.info('Fast-forwarded patch "%s"' % patches[0]) |
| 162 | |
| 163 | names = patches[forwarded:] |
| 164 | |
| 165 | # check for patches merged upstream |
| 166 | if names and check_merged: |
| 167 | out.start('Checking for patches merged upstream') |
| 168 | |
| 169 | merged = crt_series.merged_patches(names) |
| 170 | |
| 171 | out.done('%d found' % len(merged)) |
| 172 | else: |
| 173 | merged = [] |
| 174 | |
| 175 | for p in names: |
| 176 | out.start('Pushing patch "%s"' % p) |
| 177 | |
| 178 | if p in merged: |
| 179 | crt_series.push_empty_patch(p) |
| 180 | out.done('merged upstream') |
| 181 | else: |
| 182 | modified = crt_series.push_patch(p) |
| 183 | |
| 184 | if crt_series.empty_patch(p): |
| 185 | out.done('empty patch') |
| 186 | elif modified: |
| 187 | out.done('modified') |
| 188 | else: |
| 189 | out.done() |
| 190 | |
| 191 | def pop_patches(crt_series, patches, keep = False): |
| 192 | """Pop the patches in the list from the stack. It is assumed that |
| 193 | the patches are listed in the stack reverse order. |
| 194 | """ |
| 195 | if len(patches) == 0: |
| 196 | out.info('Nothing to push/pop') |
| 197 | else: |
| 198 | p = patches[-1] |
| 199 | if len(patches) == 1: |
| 200 | out.start('Popping patch "%s"' % p) |
| 201 | else: |
| 202 | out.start('Popping patches "%s" - "%s"' % (patches[0], p)) |
| 203 | crt_series.pop_patch(p, keep) |
| 204 | out.done() |
| 205 | |
| 206 | def parse_patches(patch_args, patch_list, boundary = 0, ordered = False): |
| 207 | """Parse patch_args list for patch names in patch_list and return |
| 208 | a list. The names can be individual patches and/or in the |
| 209 | patch1..patch2 format. |
| 210 | """ |
| 211 | patches = [] |
| 212 | |
| 213 | for name in patch_args: |
| 214 | pair = name.split('..') |
| 215 | for p in pair: |
| 216 | if p and not p in patch_list: |
| 217 | raise CmdException, 'Unknown patch name: %s' % p |
| 218 | |
| 219 | if len(pair) == 1: |
| 220 | # single patch name |
| 221 | pl = pair |
| 222 | elif len(pair) == 2: |
| 223 | # patch range [p1]..[p2] |
| 224 | # inclusive boundary |
| 225 | if pair[0]: |
| 226 | first = patch_list.index(pair[0]) |
| 227 | else: |
| 228 | first = -1 |
| 229 | # exclusive boundary |
| 230 | if pair[1]: |
| 231 | last = patch_list.index(pair[1]) + 1 |
| 232 | else: |
| 233 | last = -1 |
| 234 | |
| 235 | # only cross the boundary if explicitly asked |
| 236 | if not boundary: |
| 237 | boundary = len(patch_list) |
| 238 | if first < 0: |
| 239 | if last <= boundary: |
| 240 | first = 0 |
| 241 | else: |
| 242 | first = boundary |
| 243 | if last < 0: |
| 244 | if first < boundary: |
| 245 | last = boundary |
| 246 | else: |
| 247 | last = len(patch_list) |
| 248 | |
| 249 | if last > first: |
| 250 | pl = patch_list[first:last] |
| 251 | else: |
| 252 | pl = patch_list[(last - 1):(first + 1)] |
| 253 | pl.reverse() |
| 254 | else: |
| 255 | raise CmdException, 'Malformed patch name: %s' % name |
| 256 | |
| 257 | for p in pl: |
| 258 | if p in patches: |
| 259 | raise CmdException, 'Duplicate patch name: %s' % p |
| 260 | |
| 261 | patches += pl |
| 262 | |
| 263 | if ordered: |
| 264 | patches = [p for p in patch_list if p in patches] |
| 265 | |
| 266 | return patches |
| 267 | |
| 268 | def name_email(address): |
| 269 | p = parse_name_email(address) |
| 270 | if p: |
| 271 | return p |
| 272 | else: |
| 273 | raise CmdException('Incorrect "name <email>"/"email (name)" string: %s' |
| 274 | % address) |
| 275 | |
| 276 | def name_email_date(address): |
| 277 | p = parse_name_email_date(address) |
| 278 | if p: |
| 279 | return p |
| 280 | else: |
| 281 | raise CmdException('Incorrect "name <email> date" string: %s' % address) |
| 282 | |
| 283 | def address_or_alias(addr_str): |
| 284 | """Return the address if it contains an e-mail address or look up |
| 285 | the aliases in the config files. |
| 286 | """ |
| 287 | def __address_or_alias(addr): |
| 288 | if not addr: |
| 289 | return None |
| 290 | if addr.find('@') >= 0: |
| 291 | # it's an e-mail address |
| 292 | return addr |
| 293 | alias = config.get('mail.alias.'+addr) |
| 294 | if alias: |
| 295 | # it's an alias |
| 296 | return alias |
| 297 | raise CmdException, 'unknown e-mail alias: %s' % addr |
| 298 | |
| 299 | addr_list = [__address_or_alias(addr.strip()) |
| 300 | for addr in addr_str.split(',')] |
| 301 | return ', '.join([addr for addr in addr_list if addr]) |
| 302 | |
| 303 | def prepare_rebase(crt_series): |
| 304 | # pop all patches |
| 305 | applied = crt_series.get_applied() |
| 306 | if len(applied) > 0: |
| 307 | out.start('Popping all applied patches') |
| 308 | crt_series.pop_patch(applied[0]) |
| 309 | out.done() |
| 310 | return applied |
| 311 | |
| 312 | def rebase(crt_series, target): |
| 313 | try: |
| 314 | tree_id = git_id(crt_series, target) |
| 315 | except: |
| 316 | # it might be that we use a custom rebase command with its own |
| 317 | # target type |
| 318 | tree_id = target |
| 319 | if tree_id == git.get_head(): |
| 320 | out.info('Already at "%s", no need for rebasing.' % target) |
| 321 | return |
| 322 | if target: |
| 323 | out.start('Rebasing to "%s"' % target) |
| 324 | else: |
| 325 | out.start('Rebasing to the default target') |
| 326 | git.rebase(tree_id = tree_id) |
| 327 | out.done() |
| 328 | |
| 329 | def post_rebase(crt_series, applied, nopush, merged): |
| 330 | # memorize that we rebased to here |
| 331 | crt_series._set_field('orig-base', git.get_head()) |
| 332 | # push the patches back |
| 333 | if not nopush: |
| 334 | push_patches(crt_series, applied, merged) |
| 335 | |
| 336 | # |
| 337 | # Patch description/e-mail/diff parsing |
| 338 | # |
| 339 | def __end_descr(line): |
| 340 | return re.match('---\s*$', line) or re.match('diff -', line) or \ |
| 341 | re.match('Index: ', line) |
| 342 | |
| 343 | def __split_descr_diff(string): |
| 344 | """Return the description and the diff from the given string |
| 345 | """ |
| 346 | descr = diff = '' |
| 347 | top = True |
| 348 | |
| 349 | for line in string.split('\n'): |
| 350 | if top: |
| 351 | if not __end_descr(line): |
| 352 | descr += line + '\n' |
| 353 | continue |
| 354 | else: |
| 355 | top = False |
| 356 | diff += line + '\n' |
| 357 | |
| 358 | return (descr.rstrip(), diff) |
| 359 | |
| 360 | def __parse_description(descr): |
| 361 | """Parse the patch description and return the new description and |
| 362 | author information (if any). |
| 363 | """ |
| 364 | subject = body = '' |
| 365 | authname = authemail = authdate = None |
| 366 | |
| 367 | descr_lines = [line.rstrip() for line in descr.split('\n')] |
| 368 | if not descr_lines: |
| 369 | raise CmdException, "Empty patch description" |
| 370 | |
| 371 | lasthdr = 0 |
| 372 | end = len(descr_lines) |
| 373 | |
| 374 | # Parse the patch header |
| 375 | for pos in range(0, end): |
| 376 | if not descr_lines[pos]: |
| 377 | continue |
| 378 | # check for a "From|Author:" line |
| 379 | if re.match('\s*(?:from|author):\s+', descr_lines[pos], re.I): |
| 380 | auth = re.findall('^.*?:\s+(.*)$', descr_lines[pos])[0] |
| 381 | authname, authemail = name_email(auth) |
| 382 | lasthdr = pos + 1 |
| 383 | continue |
| 384 | # check for a "Date:" line |
| 385 | if re.match('\s*date:\s+', descr_lines[pos], re.I): |
| 386 | authdate = re.findall('^.*?:\s+(.*)$', descr_lines[pos])[0] |
| 387 | lasthdr = pos + 1 |
| 388 | continue |
| 389 | if subject: |
| 390 | break |
| 391 | # get the subject |
| 392 | subject = descr_lines[pos] |
| 393 | lasthdr = pos + 1 |
| 394 | |
| 395 | # get the body |
| 396 | if lasthdr < end: |
| 397 | body = reduce(lambda x, y: x + '\n' + y, descr_lines[lasthdr:], '') |
| 398 | |
| 399 | return (subject + body, authname, authemail, authdate) |
| 400 | |
| 401 | def parse_mail(msg): |
| 402 | """Parse the message object and return (description, authname, |
| 403 | authemail, authdate, diff) |
| 404 | """ |
| 405 | from email.Header import decode_header, make_header |
| 406 | |
| 407 | def __decode_header(header): |
| 408 | """Decode a qp-encoded e-mail header as per rfc2047""" |
| 409 | try: |
| 410 | words_enc = decode_header(header) |
| 411 | hobj = make_header(words_enc) |
| 412 | except Exception, ex: |
| 413 | raise CmdException, 'header decoding error: %s' % str(ex) |
| 414 | return unicode(hobj).encode('utf-8') |
| 415 | |
| 416 | # parse the headers |
| 417 | if msg.has_key('from'): |
| 418 | authname, authemail = name_email(__decode_header(msg['from'])) |
| 419 | else: |
| 420 | authname = authemail = None |
| 421 | |
| 422 | # '\n\t' can be found on multi-line headers |
| 423 | descr = __decode_header(msg['subject']).replace('\n\t', ' ') |
| 424 | authdate = msg['date'] |
| 425 | |
| 426 | # remove the '[*PATCH*]' expression in the subject |
| 427 | if descr: |
| 428 | descr = re.findall('^(\[.*?[Pp][Aa][Tt][Cc][Hh].*?\])?\s*(.*)$', |
| 429 | descr)[0][1] |
| 430 | else: |
| 431 | raise CmdException, 'Subject: line not found' |
| 432 | |
| 433 | # the rest of the message |
| 434 | msg_text = '' |
| 435 | for part in msg.walk(): |
| 436 | if part.get_content_type() == 'text/plain': |
| 437 | msg_text += part.get_payload(decode = True) |
| 438 | |
| 439 | rem_descr, diff = __split_descr_diff(msg_text) |
| 440 | if rem_descr: |
| 441 | descr += '\n\n' + rem_descr |
| 442 | |
| 443 | # parse the description for author information |
| 444 | descr, descr_authname, descr_authemail, descr_authdate = \ |
| 445 | __parse_description(descr) |
| 446 | if descr_authname: |
| 447 | authname = descr_authname |
| 448 | if descr_authemail: |
| 449 | authemail = descr_authemail |
| 450 | if descr_authdate: |
| 451 | authdate = descr_authdate |
| 452 | |
| 453 | return (descr, authname, authemail, authdate, diff) |
| 454 | |
| 455 | def parse_patch(text): |
| 456 | """Parse the input text and return (description, authname, |
| 457 | authemail, authdate, diff) |
| 458 | """ |
| 459 | descr, diff = __split_descr_diff(text) |
| 460 | descr, authname, authemail, authdate = __parse_description(descr) |
| 461 | |
| 462 | # we don't yet have an agreed place for the creation date. |
| 463 | # Just return None |
| 464 | return (descr, authname, authemail, authdate, diff) |
| 465 | |
| 466 | def readonly_constant_property(f): |
| 467 | """Decorator that converts a function that computes a value to an |
| 468 | attribute that returns the value. The value is computed only once, |
| 469 | the first time it is accessed.""" |
| 470 | def new_f(self): |
| 471 | n = '__' + f.__name__ |
| 472 | if not hasattr(self, n): |
| 473 | setattr(self, n, f(self)) |
| 474 | return getattr(self, n) |
| 475 | return property(new_f) |
| 476 | |
| 477 | class DirectoryException(StgException): |
| 478 | pass |
| 479 | |
| 480 | class _Directory(object): |
| 481 | def __init__(self, needs_current_series = True): |
| 482 | self.needs_current_series = needs_current_series |
| 483 | @readonly_constant_property |
| 484 | def git_dir(self): |
| 485 | try: |
| 486 | return Run('git', 'rev-parse', '--git-dir' |
| 487 | ).discard_stderr().output_one_line() |
| 488 | except RunException: |
| 489 | raise DirectoryException('No git repository found') |
| 490 | @readonly_constant_property |
| 491 | def __topdir_path(self): |
| 492 | try: |
| 493 | lines = Run('git', 'rev-parse', '--show-cdup' |
| 494 | ).discard_stderr().output_lines() |
| 495 | if len(lines) == 0: |
| 496 | return '.' |
| 497 | elif len(lines) == 1: |
| 498 | return lines[0] |
| 499 | else: |
| 500 | raise RunException('Too much output') |
| 501 | except RunException: |
| 502 | raise DirectoryException('No git repository found') |
| 503 | @readonly_constant_property |
| 504 | def is_inside_git_dir(self): |
| 505 | return { 'true': True, 'false': False |
| 506 | }[Run('git', 'rev-parse', '--is-inside-git-dir' |
| 507 | ).output_one_line()] |
| 508 | @readonly_constant_property |
| 509 | def is_inside_worktree(self): |
| 510 | return { 'true': True, 'false': False |
| 511 | }[Run('git', 'rev-parse', '--is-inside-work-tree' |
| 512 | ).output_one_line()] |
| 513 | def cd_to_topdir(self): |
| 514 | os.chdir(self.__topdir_path) |
| 515 | |
| 516 | class DirectoryAnywhere(_Directory): |
| 517 | def setup(self): |
| 518 | pass |
| 519 | |
| 520 | class DirectoryHasRepository(_Directory): |
| 521 | def setup(self): |
| 522 | self.git_dir # might throw an exception |
| 523 | |
| 524 | class DirectoryInWorktree(DirectoryHasRepository): |
| 525 | def setup(self): |
| 526 | DirectoryHasRepository.setup(self) |
| 527 | if not self.is_inside_worktree: |
| 528 | raise DirectoryException('Not inside a git worktree') |
| 529 | |
| 530 | class DirectoryGotoToplevel(DirectoryInWorktree): |
| 531 | def setup(self): |
| 532 | DirectoryInWorktree.setup(self) |
| 533 | self.cd_to_topdir() |
| 534 | |
| 535 | class DirectoryHasRepositoryLib(_Directory): |
| 536 | """For commands that use the new infrastructure in stgit.lib.*.""" |
| 537 | def __init__(self): |
| 538 | self.needs_current_series = False |
| 539 | def setup(self): |
| 540 | # This will throw an exception if we don't have a repository. |
| 541 | self.repository = libstack.Repository.default() |