1 """Function/variables common to all the commands
5 Copyright (C) 2005, Catalin Marinas <catalin.marinas@gmail.com>
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.
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.
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
21 import sys, os, os.path, re
22 from optparse import OptionParser, make_option
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
32 # Command exception class
33 class CmdException(StgException):
37 class RevParseException(StgException):
38 """Revision spec parse error."""
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'[^@]'
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
58 m = re.match(r'^%s$' % patch_id_re, rev)
60 return None, None, m.group('patch_id')
62 # Try path[@branch]//patch_id.
63 m = re.match(r'^%s(%s)?%s$' % (patch_re, branch_re, patch_id_re), rev)
65 return m.group('patch'), m.group('branch'), m.group('patch_id')
68 m = re.match(r'^%s(%s)?$' % (patch_re, branch_re), rev)
70 return m.group('patch'), m.group('branch'), None
72 # No, we can't parse that.
73 raise RevParseException
75 def git_id(crt_series, rev):
81 # try a GIT revision first
83 return git.rev_parse(rev + '^{commit}')
84 except git.GitException:
87 # try an StGIT patch name
89 patch, branch, patch_id = parse_rev(rev)
93 series = stack.Series(branch)
95 patch = series.get_current()
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:
114 except stack.StackException:
117 raise CmdException, 'Unknown patch or revision: %s' % rev
119 def check_local_changes():
120 if git.local_changes():
121 raise CmdException, \
122 'local changes in the tree. Use "refresh" or "status --reset"'
124 def check_head_top_equal(crt_series):
125 if not crt_series.head_top_equal():
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.""")
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"'
137 def print_crt_patch(crt_series, branch = None):
139 patch = crt_series.get_current()
141 patch = stack.Series(branch).get_current()
144 out.info('Now at patch "%s"' % patch)
146 out.info('No patches applied')
148 def resolved(filename, reset = None):
150 reset_file = filename + file_extensions()[reset]
151 if os.path.isfile(reset_file):
152 if os.path.isfile(filename):
154 os.rename(reset_file, filename)
155 # update the access and modificatied times
156 os.utime(filename, None)
158 git.update_cache([filename], force = True)
160 for ext in file_extensions().values():
162 if os.path.isfile(fn):
165 def resolved_all(reset = None):
166 conflicts = git.get_conflicts()
167 for filename in conflicts:
168 resolved(filename, reset)
170 def push_patches(crt_series, patches, check_merged = False):
171 """Push multiple patches onto the stack. This function is shared
172 between the push and pull commands
174 forwarded = crt_series.forward_patches(patches)
176 out.info('Fast-forwarded patches "%s" - "%s"'
177 % (patches[0], patches[forwarded - 1]))
179 out.info('Fast-forwarded patch "%s"' % patches[0])
181 names = patches[forwarded:]
183 # check for patches merged upstream
184 if names and check_merged:
185 out.start('Checking for patches merged upstream')
187 merged = crt_series.merged_patches(names)
189 out.done('%d found' % len(merged))
194 out.start('Pushing patch "%s"' % p)
197 crt_series.push_empty_patch(p)
198 out.done('merged upstream')
200 modified = crt_series.push_patch(p)
202 if crt_series.empty_patch(p):
203 out.done('empty patch')
209 def pop_patches(crt_series, patches, keep = False):
210 """Pop the patches in the list from the stack. It is assumed that
211 the patches are listed in the stack reverse order.
213 if len(patches) == 0:
214 out.info('Nothing to push/pop')
217 if len(patches) == 1:
218 out.start('Popping patch "%s"' % p)
220 out.start('Popping patches "%s" - "%s"' % (patches[0], p))
221 crt_series.pop_patch(p, keep)
224 def parse_patches(patch_args, patch_list, boundary = 0, ordered = False):
225 """Parse patch_args list for patch names in patch_list and return
226 a list. The names can be individual patches and/or in the
227 patch1..patch2 format.
231 for name in patch_args:
232 pair = name.split('..')
234 if p and not p in patch_list:
235 raise CmdException, 'Unknown patch name: %s' % p
241 # patch range [p1]..[p2]
244 first = patch_list.index(pair[0])
249 last = patch_list.index(pair[1]) + 1
253 # only cross the boundary if explicitly asked
255 boundary = len(patch_list)
265 last = len(patch_list)
268 pl = patch_list[first:last]
270 pl = patch_list[(last - 1):(first + 1)]
273 raise CmdException, 'Malformed patch name: %s' % name
277 raise CmdException, 'Duplicate patch name: %s' % p
282 patches = [p for p in patch_list if p in patches]
286 def name_email(address):
287 """Return a tuple consisting of the name and email parsed from a
288 standard 'name <email>' or 'email (name)' string
290 address = re.sub('[\\\\"]', '\\\\\g<0>', address)
291 str_list = re.findall('^(.*)\s*<(.*)>\s*$', address)
293 str_list = re.findall('^(.*)\s*\((.*)\)\s*$', address)
295 raise CmdException, 'Incorrect "name <email>"/"email (name)" string: %s' % address
296 return ( str_list[0][1], str_list[0][0] )
300 def name_email_date(address):
301 """Return a tuple consisting of the name, email and date parsed
302 from a 'name <email> date' string
304 address = re.sub('[\\\\"]', '\\\\\g<0>', address)
305 str_list = re.findall('^(.*)\s*<(.*)>\s*(.*)\s*$', address)
307 raise CmdException, 'Incorrect "name <email> date" string: %s' % address
311 def address_or_alias(addr_str):
312 """Return the address if it contains an e-mail address or look up
313 the aliases in the config files.
315 def __address_or_alias(addr):
318 if addr.find('@') >= 0:
319 # it's an e-mail address
321 alias = config.get('mail.alias.'+addr)
325 raise CmdException, 'unknown e-mail alias: %s' % addr
327 addr_list = [__address_or_alias(addr.strip())
328 for addr in addr_str.split(',')]
329 return ', '.join([addr for addr in addr_list if addr])
331 def prepare_rebase(crt_series):
333 applied = crt_series.get_applied()
335 out.start('Popping all applied patches')
336 crt_series.pop_patch(applied[0])
340 def rebase(crt_series, target):
342 tree_id = git_id(crt_series, target)
344 # it might be that we use a custom rebase command with its own
347 if tree_id == git.get_head():
348 out.info('Already at "%s", no need for rebasing.' % target)
351 out.start('Rebasing to "%s"' % target)
353 out.start('Rebasing to the default target')
354 git.rebase(tree_id = tree_id)
357 def post_rebase(crt_series, applied, nopush, merged):
358 # memorize that we rebased to here
359 crt_series._set_field('orig-base', git.get_head())
360 # push the patches back
362 push_patches(crt_series, applied, merged)
365 # Patch description/e-mail/diff parsing
367 def __end_descr(line):
368 return re.match('---\s*$', line) or re.match('diff -', line) or \
369 re.match('Index: ', line)
371 def __split_descr_diff(string):
372 """Return the description and the diff from the given string
377 for line in string.split('\n'):
379 if not __end_descr(line):
386 return (descr.rstrip(), diff)
388 def __parse_description(descr):
389 """Parse the patch description and return the new description and
390 author information (if any).
393 authname = authemail = authdate = None
395 descr_lines = [line.rstrip() for line in descr.split('\n')]
397 raise CmdException, "Empty patch description"
400 end = len(descr_lines)
402 # Parse the patch header
403 for pos in range(0, end):
404 if not descr_lines[pos]:
406 # check for a "From|Author:" line
407 if re.match('\s*(?:from|author):\s+', descr_lines[pos], re.I):
408 auth = re.findall('^.*?:\s+(.*)$', descr_lines[pos])[0]
409 authname, authemail = name_email(auth)
412 # check for a "Date:" line
413 if re.match('\s*date:\s+', descr_lines[pos], re.I):
414 authdate = re.findall('^.*?:\s+(.*)$', descr_lines[pos])[0]
420 subject = descr_lines[pos]
425 body = reduce(lambda x, y: x + '\n' + y, descr_lines[lasthdr:], '')
427 return (subject + body, authname, authemail, authdate)
430 """Parse the message object and return (description, authname,
431 authemail, authdate, diff)
433 from email.Header import decode_header, make_header
435 def __decode_header(header):
436 """Decode a qp-encoded e-mail header as per rfc2047"""
438 words_enc = decode_header(header)
439 hobj = make_header(words_enc)
440 except Exception, ex:
441 raise CmdException, 'header decoding error: %s' % str(ex)
442 return unicode(hobj).encode('utf-8')
445 if msg.has_key('from'):
446 authname, authemail = name_email(__decode_header(msg['from']))
448 authname = authemail = None
450 # '\n\t' can be found on multi-line headers
451 descr = __decode_header(msg['subject']).replace('\n\t', ' ')
452 authdate = msg['date']
454 # remove the '[*PATCH*]' expression in the subject
456 descr = re.findall('^(\[.*?[Pp][Aa][Tt][Cc][Hh].*?\])?\s*(.*)$',
459 raise CmdException, 'Subject: line not found'
461 # the rest of the message
463 for part in msg.walk():
464 if part.get_content_type() == 'text/plain':
465 msg_text += part.get_payload(decode = True)
467 rem_descr, diff = __split_descr_diff(msg_text)
469 descr += '\n\n' + rem_descr
471 # parse the description for author information
472 descr, descr_authname, descr_authemail, descr_authdate = \
473 __parse_description(descr)
475 authname = descr_authname
477 authemail = descr_authemail
479 authdate = descr_authdate
481 return (descr, authname, authemail, authdate, diff)
483 def parse_patch(text):
484 """Parse the input text and return (description, authname,
485 authemail, authdate, diff)
487 descr, diff = __split_descr_diff(text)
488 descr, authname, authemail, authdate = __parse_description(descr)
490 # we don't yet have an agreed place for the creation date.
492 return (descr, authname, authemail, authdate, diff)
494 def readonly_constant_property(f):
495 """Decorator that converts a function that computes a value to an
496 attribute that returns the value. The value is computed only once,
497 the first time it is accessed."""
499 n = '__' + f.__name__
500 if not hasattr(self, n):
501 setattr(self, n, f(self))
502 return getattr(self, n)
503 return property(new_f)
505 class DirectoryException(StgException):
508 class _Directory(object):
509 def __init__(self, needs_current_series = True):
510 self.needs_current_series = needs_current_series
511 @readonly_constant_property
514 return Run('git', 'rev-parse', '--git-dir'
515 ).discard_stderr().output_one_line()
517 raise DirectoryException('No git repository found')
518 @readonly_constant_property
519 def __topdir_path(self):
521 lines = Run('git', 'rev-parse', '--show-cdup'
522 ).discard_stderr().output_lines()
525 elif len(lines) == 1:
528 raise RunException('Too much output')
530 raise DirectoryException('No git repository found')
531 @readonly_constant_property
532 def is_inside_git_dir(self):
533 return { 'true': True, 'false': False
534 }[Run('git', 'rev-parse', '--is-inside-git-dir'
536 @readonly_constant_property
537 def is_inside_worktree(self):
538 return { 'true': True, 'false': False
539 }[Run('git', 'rev-parse', '--is-inside-work-tree'
541 def cd_to_topdir(self):
542 os.chdir(self.__topdir_path)
544 class DirectoryAnywhere(_Directory):
548 class DirectoryHasRepository(_Directory):
550 self.git_dir # might throw an exception
552 class DirectoryInWorktree(DirectoryHasRepository):
554 DirectoryHasRepository.setup(self)
555 if not self.is_inside_worktree:
556 raise DirectoryException('Not inside a git worktree')
558 class DirectoryGotoToplevel(DirectoryInWorktree):
560 DirectoryInWorktree.setup(self)