Mercurial > hg
annotate mercurial/patch.py @ 2863:f3c68e0ca37d
Remove debugging line
author | Brendan Cully <brendan@kublai.com> |
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date | Fri, 11 Aug 2006 16:55:48 -0700 |
parents | 0f08f2c042ec |
children | 71e78f2ca5ae |
rev | line source |
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1 # patch.py - patch file parsing routines |
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2 # |
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3 # This software may be used and distributed according to the terms |
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4 # of the GNU General Public License, incorporated herein by reference. |
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5 |
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6 from demandload import demandload |
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7 demandload(globals(), "util") |
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8 demandload(globals(), "os re shutil tempfile") |
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9 |
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10 def readgitpatch(patchname): |
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11 """extract git-style metadata about patches from <patchname>""" |
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12 class gitpatch: |
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13 "op is one of ADD, DELETE, RENAME, MODIFY or COPY" |
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14 def __init__(self, path): |
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15 self.path = path |
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16 self.oldpath = None |
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17 self.mode = None |
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18 self.op = 'MODIFY' |
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19 self.copymod = False |
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20 self.lineno = 0 |
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21 |
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22 # Filter patch for git information |
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23 gitre = re.compile('diff --git a/(.*) b/(.*)') |
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24 pf = file(patchname) |
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25 gp = None |
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26 gitpatches = [] |
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27 # Can have a git patch with only metadata, causing patch to complain |
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28 dopatch = False |
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29 |
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30 lineno = 0 |
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31 for line in pf: |
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32 lineno += 1 |
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33 if line.startswith('diff --git'): |
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34 m = gitre.match(line) |
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35 if m: |
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36 if gp: |
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37 gitpatches.append(gp) |
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38 src, dst = m.group(1,2) |
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39 gp = gitpatch(dst) |
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40 gp.lineno = lineno |
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41 elif gp: |
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42 if line.startswith('--- '): |
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43 if gp.op in ('COPY', 'RENAME'): |
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44 gp.copymod = True |
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45 dopatch = 'filter' |
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46 gitpatches.append(gp) |
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47 gp = None |
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48 if not dopatch: |
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49 dopatch = True |
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50 continue |
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51 if line.startswith('rename from '): |
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52 gp.op = 'RENAME' |
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53 gp.oldpath = line[12:].rstrip() |
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54 elif line.startswith('rename to '): |
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55 gp.path = line[10:].rstrip() |
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56 elif line.startswith('copy from '): |
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57 gp.op = 'COPY' |
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58 gp.oldpath = line[10:].rstrip() |
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59 elif line.startswith('copy to '): |
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60 gp.path = line[8:].rstrip() |
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61 elif line.startswith('deleted file'): |
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62 gp.op = 'DELETE' |
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63 elif line.startswith('new file mode '): |
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64 gp.op = 'ADD' |
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65 gp.mode = int(line.rstrip()[-3:], 8) |
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66 elif line.startswith('new mode '): |
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67 gp.mode = int(line.rstrip()[-3:], 8) |
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68 if gp: |
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69 gitpatches.append(gp) |
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70 |
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71 if not gitpatches: |
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72 dopatch = True |
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73 |
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74 return (dopatch, gitpatches) |
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75 |
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76 def dogitpatch(patchname, gitpatches): |
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77 """Preprocess git patch so that vanilla patch can handle it""" |
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78 pf = file(patchname) |
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79 pfline = 1 |
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80 |
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81 fd, patchname = tempfile.mkstemp(prefix='hg-patch-') |
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82 tmpfp = os.fdopen(fd, 'w') |
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83 |
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84 try: |
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85 for i in range(len(gitpatches)): |
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86 p = gitpatches[i] |
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87 if not p.copymod: |
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88 continue |
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89 |
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90 if os.path.exists(p.path): |
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91 raise util.Abort(_("cannot create %s: destination already exists") % |
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92 p.path) |
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93 |
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94 (src, dst) = [os.path.join(os.getcwd(), n) |
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95 for n in (p.oldpath, p.path)] |
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96 |
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97 targetdir = os.path.dirname(dst) |
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98 if not os.path.isdir(targetdir): |
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99 os.makedirs(targetdir) |
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100 try: |
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101 shutil.copyfile(src, dst) |
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102 shutil.copymode(src, dst) |
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103 except shutil.Error, inst: |
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104 raise util.Abort(str(inst)) |
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105 |
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106 # rewrite patch hunk |
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107 while pfline < p.lineno: |
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108 tmpfp.write(pf.readline()) |
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109 pfline += 1 |
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110 tmpfp.write('diff --git a/%s b/%s\n' % (p.path, p.path)) |
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111 line = pf.readline() |
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112 pfline += 1 |
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113 while not line.startswith('--- a/'): |
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114 tmpfp.write(line) |
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115 line = pf.readline() |
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116 pfline += 1 |
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117 tmpfp.write('--- a/%s\n' % p.path) |
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118 |
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119 line = pf.readline() |
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120 while line: |
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121 tmpfp.write(line) |
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122 line = pf.readline() |
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123 except: |
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124 tmpfp.close() |
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125 os.unlink(patchname) |
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126 raise |
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127 |
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128 tmpfp.close() |
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129 return patchname |
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130 |
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131 def patch(strip, patchname, ui, cwd=None): |
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132 """apply the patch <patchname> to the working directory. |
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133 a list of patched files is returned""" |
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134 |
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135 (dopatch, gitpatches) = readgitpatch(patchname) |
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136 |
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137 files = {} |
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138 if dopatch: |
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139 if dopatch == 'filter': |
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140 patchname = dogitpatch(patchname, gitpatches) |
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141 patcher = util.find_in_path('gpatch', os.environ.get('PATH', ''), 'patch') |
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142 args = [] |
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143 if cwd: |
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144 args.append('-d %s' % util.shellquote(cwd)) |
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145 fp = os.popen('%s %s -p%d < %s' % (patcher, ' '.join(args), strip, |
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146 util.shellquote(patchname))) |
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147 |
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148 if dopatch == 'filter': |
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149 False and os.unlink(patchname) |
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150 |
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151 for line in fp: |
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152 line = line.rstrip() |
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153 ui.status("%s\n" % line) |
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154 if line.startswith('patching file '): |
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155 pf = util.parse_patch_output(line) |
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156 files.setdefault(pf, (None, None)) |
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157 code = fp.close() |
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158 if code: |
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159 raise util.Abort(_("patch command failed: %s") % explain_exit(code)[0]) |
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160 |
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161 for gp in gitpatches: |
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162 files[gp.path] = (gp.op, gp) |
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163 |
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164 return files |