annotate mercurial/patch.py @ 2867:9a2a481ec3ea

util: qualify name properly.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Sat, 12 Aug 2006 15:41:26 -0700
parents 2893e51407a4
children 4ec58b157265
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # patch.py - patch file parsing routines
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2 #
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3 # Copyright 2006 Brendan Cully <brendan@kublai.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7
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8 from demandload import demandload
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9 from i18n import gettext as _
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10 demandload(globals(), "util")
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11 demandload(globals(), "cStringIO email.Parser os re shutil tempfile")
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12
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13 def extract(ui, fileobj):
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14 '''extract patch from data read from fileobj.
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15
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16 patch can be normal patch or contained in email message.
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17
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18 return tuple (filename, message, user, date). any item in returned
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19 tuple can be None. if filename is None, fileobj did not contain
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20 patch. caller must unlink filename when done.'''
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21
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22 # attempt to detect the start of a patch
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23 # (this heuristic is borrowed from quilt)
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24 diffre = re.compile(r'^(?:Index:[ \t]|diff[ \t]|RCS file: |' +
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25 'retrieving revision [0-9]+(\.[0-9]+)*$|' +
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26 '(---|\*\*\*)[ \t])', re.MULTILINE)
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27
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28 fd, tmpname = tempfile.mkstemp(prefix='hg-patch-')
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29 tmpfp = os.fdopen(fd, 'w')
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30 try:
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31 hgpatch = False
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32
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33 msg = email.Parser.Parser().parse(fileobj)
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34
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35 message = msg['Subject']
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36 user = msg['From']
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37 # should try to parse msg['Date']
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38 date = None
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39
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40 if message:
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41 message = message.replace('\n\t', ' ')
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42 ui.debug('Subject: %s\n' % message)
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43 if user:
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44 ui.debug('From: %s\n' % user)
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45 diffs_seen = 0
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46 ok_types = ('text/plain', 'text/x-diff', 'text/x-patch')
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47
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48 for part in msg.walk():
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49 content_type = part.get_content_type()
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50 ui.debug('Content-Type: %s\n' % content_type)
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51 if content_type not in ok_types:
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52 continue
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53 payload = part.get_payload(decode=True)
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54 m = diffre.search(payload)
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55 if m:
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56 ui.debug(_('found patch at byte %d\n') % m.start(0))
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57 diffs_seen += 1
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58 cfp = cStringIO.StringIO()
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59 if message:
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60 cfp.write(message)
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61 cfp.write('\n')
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62 for line in payload[:m.start(0)].splitlines():
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63 if line.startswith('# HG changeset patch'):
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64 ui.debug(_('patch generated by hg export\n'))
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65 hgpatch = True
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66 # drop earlier commit message content
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67 cfp.seek(0)
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68 cfp.truncate()
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69 elif hgpatch:
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70 if line.startswith('# User '):
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71 user = line[7:]
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72 ui.debug('From: %s\n' % user)
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73 elif line.startswith("# Date "):
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74 date = line[7:]
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75 if not line.startswith('# '):
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76 cfp.write(line)
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77 cfp.write('\n')
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78 message = cfp.getvalue()
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79 if tmpfp:
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80 tmpfp.write(payload)
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81 if not payload.endswith('\n'):
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82 tmpfp.write('\n')
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83 elif not diffs_seen and message and content_type == 'text/plain':
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84 message += '\n' + payload
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85 except:
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86 tmpfp.close()
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87 os.unlink(tmpname)
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88 raise
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89
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90 tmpfp.close()
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91 if not diffs_seen:
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92 os.unlink(tmpname)
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93 return None, message, user, date
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94 return tmpname, message, user, date
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95
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96 def readgitpatch(patchname):
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97 """extract git-style metadata about patches from <patchname>"""
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98 class gitpatch:
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99 "op is one of ADD, DELETE, RENAME, MODIFY or COPY"
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100 def __init__(self, path):
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101 self.path = path
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102 self.oldpath = None
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103 self.mode = None
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104 self.op = 'MODIFY'
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105 self.copymod = False
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106 self.lineno = 0
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107
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108 # Filter patch for git information
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109 gitre = re.compile('diff --git a/(.*) b/(.*)')
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110 pf = file(patchname)
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111 gp = None
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112 gitpatches = []
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113 # Can have a git patch with only metadata, causing patch to complain
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114 dopatch = False
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115
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116 lineno = 0
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117 for line in pf:
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118 lineno += 1
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119 if line.startswith('diff --git'):
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120 m = gitre.match(line)
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121 if m:
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122 if gp:
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123 gitpatches.append(gp)
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124 src, dst = m.group(1,2)
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125 gp = gitpatch(dst)
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126 gp.lineno = lineno
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127 elif gp:
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128 if line.startswith('--- '):
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129 if gp.op in ('COPY', 'RENAME'):
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130 gp.copymod = True
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
131 dopatch = 'filter'
0f08f2c042ec Move patch-related code into its own module.
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parents:
diff changeset
132 gitpatches.append(gp)
0f08f2c042ec Move patch-related code into its own module.
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parents:
diff changeset
133 gp = None
0f08f2c042ec Move patch-related code into its own module.
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parents:
diff changeset
134 if not dopatch:
0f08f2c042ec Move patch-related code into its own module.
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parents:
diff changeset
135 dopatch = True
0f08f2c042ec Move patch-related code into its own module.
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parents:
diff changeset
136 continue
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
137 if line.startswith('rename from '):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
138 gp.op = 'RENAME'
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
139 gp.oldpath = line[12:].rstrip()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
140 elif line.startswith('rename to '):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
141 gp.path = line[10:].rstrip()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
142 elif line.startswith('copy from '):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
143 gp.op = 'COPY'
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
144 gp.oldpath = line[10:].rstrip()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
145 elif line.startswith('copy to '):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
146 gp.path = line[8:].rstrip()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
147 elif line.startswith('deleted file'):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
148 gp.op = 'DELETE'
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
149 elif line.startswith('new file mode '):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
150 gp.op = 'ADD'
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
151 gp.mode = int(line.rstrip()[-3:], 8)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
152 elif line.startswith('new mode '):
0f08f2c042ec Move patch-related code into its own module.
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parents:
diff changeset
153 gp.mode = int(line.rstrip()[-3:], 8)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
154 if gp:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
155 gitpatches.append(gp)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
156
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
157 if not gitpatches:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
158 dopatch = True
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
159
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
160 return (dopatch, gitpatches)
0f08f2c042ec Move patch-related code into its own module.
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parents:
diff changeset
161
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
162 def dogitpatch(patchname, gitpatches):
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Brendan Cully <brendan@kublai.com>
parents:
diff changeset
163 """Preprocess git patch so that vanilla patch can handle it"""
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
164 pf = file(patchname)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
165 pfline = 1
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
166
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
167 fd, patchname = tempfile.mkstemp(prefix='hg-patch-')
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parents:
diff changeset
168 tmpfp = os.fdopen(fd, 'w')
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
169
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
170 try:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
171 for i in range(len(gitpatches)):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
172 p = gitpatches[i]
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
173 if not p.copymod:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
174 continue
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
175
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
176 if os.path.exists(p.path):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
177 raise util.Abort(_("cannot create %s: destination already exists") %
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
178 p.path)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
179
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
180 (src, dst) = [os.path.join(os.getcwd(), n)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
181 for n in (p.oldpath, p.path)]
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
182
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
183 targetdir = os.path.dirname(dst)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
184 if not os.path.isdir(targetdir):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
185 os.makedirs(targetdir)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
186 try:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
187 shutil.copyfile(src, dst)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
188 shutil.copymode(src, dst)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
189 except shutil.Error, inst:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
190 raise util.Abort(str(inst))
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
191
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
192 # rewrite patch hunk
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
193 while pfline < p.lineno:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
194 tmpfp.write(pf.readline())
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
195 pfline += 1
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
196 tmpfp.write('diff --git a/%s b/%s\n' % (p.path, p.path))
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
197 line = pf.readline()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
198 pfline += 1
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
199 while not line.startswith('--- a/'):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
200 tmpfp.write(line)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
201 line = pf.readline()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
202 pfline += 1
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
203 tmpfp.write('--- a/%s\n' % p.path)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
204
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
205 line = pf.readline()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
206 while line:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
207 tmpfp.write(line)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
208 line = pf.readline()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
209 except:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
210 tmpfp.close()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
211 os.unlink(patchname)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
212 raise
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
213
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
214 tmpfp.close()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
215 return patchname
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
216
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
217 def patch(strip, patchname, ui, cwd=None):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
218 """apply the patch <patchname> to the working directory.
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
219 a list of patched files is returned"""
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
220
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
221 (dopatch, gitpatches) = readgitpatch(patchname)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
222
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
223 files = {}
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
224 if dopatch:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
225 if dopatch == 'filter':
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
226 patchname = dogitpatch(patchname, gitpatches)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
227 patcher = util.find_in_path('gpatch', os.environ.get('PATH', ''), 'patch')
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
228 args = []
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
229 if cwd:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
230 args.append('-d %s' % util.shellquote(cwd))
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
231 fp = os.popen('%s %s -p%d < %s' % (patcher, ' '.join(args), strip,
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
232 util.shellquote(patchname)))
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
233
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
234 if dopatch == 'filter':
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
235 False and os.unlink(patchname)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
236
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
237 for line in fp:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
238 line = line.rstrip()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
239 ui.status("%s\n" % line)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
240 if line.startswith('patching file '):
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
241 pf = util.parse_patch_output(line)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
242 files.setdefault(pf, (None, None))
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
243 code = fp.close()
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
244 if code:
2867
9a2a481ec3ea util: qualify name properly.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2865
diff changeset
245 raise util.Abort(_("patch command failed: %s") %
9a2a481ec3ea util: qualify name properly.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2865
diff changeset
246 util.explain_exit(code)[0])
2860
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
247
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
248 for gp in gitpatches:
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
249 files[gp.path] = (gp.op, gp)
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
250
0f08f2c042ec Move patch-related code into its own module.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
251 return files