Mercurial > hg > mercurial-crew-with-dirclash
annotate hgmerge @ 1834:24881eaebee3
Fixes running 'hg serve' with Windows executable and no explicit template path configured.
PY2EXE executables don't support __file__ but do place the directory of the
shared code library into sys.prefix.
Fixes bug 152.
author | Lee Cantey <lcantey@gmail.com> |
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date | Fri, 03 Mar 2006 13:41:12 -0800 |
parents | d610fe0e6893 |
children | 05c7d75be925 |
rev | line source |
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544
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1 #!/bin/sh |
240 | 2 # |
3 # hgmerge - default merge helper for Mercurial | |
4 # | |
5 # This tries to find a way to do three-way merge on the current system. | |
6 # The result ought to end up in $1. | |
7 | |
8 set -e # bail out quickly on failure | |
9 | |
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10 LOCAL="$1" |
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11 BASE="$2" |
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12 OTHER="$3" |
240 | 13 |
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14 if [ -z "$EDITOR" ]; then |
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15 EDITOR="vi" |
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16 fi |
304
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17 |
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18 # find decent versions of our utilities, insisting on the GNU versions where we |
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19 # need to |
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20 MERGE="merge" |
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21 DIFF3="gdiff3" |
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22 DIFF="gdiff" |
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23 PATCH="gpatch" |
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24 |
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25 type "$MERGE" >/dev/null 2>&1 || MERGE= |
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26 type "$DIFF3" >/dev/null 2>&1 || DIFF3="diff3" |
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27 $DIFF3 --version >/dev/null 2>&1 || DIFF3= |
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28 type "$DIFF" >/dev/null 2>&1 || DIFF="diff" |
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29 type "$DIFF" >/dev/null 2>&1 || DIFF= |
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30 type "$PATCH" >/dev/null 2>&1 || PATCH="patch" |
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31 type "$PATCH" >/dev/null 2>&1 || PATCH= |
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32 |
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33 # find optional visual utilities |
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34 FILEMERGE="/Developer/Applications/Utilities/FileMerge.app/Contents/MacOS/FileMerge" |
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35 KDIFF3="kdiff3" |
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36 TKDIFF="tkdiff" |
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37 MELD="meld" |
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38 |
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39 type "$FILEMERGE" >/dev/null 2>&1 || FILEMERGE= |
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40 type "$KDIFF3" >/dev/null 2>&1 || KDIFF3= |
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41 type "$TKDIFF" >/dev/null 2>&1 || TKDIFF= |
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42 type "$MELD" >/dev/null 2>&1 || MELD= |
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43 |
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44 # random part of names |
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45 RAND="$RANDOM$RANDOM" |
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46 |
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47 # temporary directory for diff+patch merge |
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48 HGTMP="${TMPDIR-/tmp}/hgmerge.$RAND" |
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49 |
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50 # backup file |
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51 BACKUP="$LOCAL.orig.$RAND" |
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52 |
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53 # file used to test for file change |
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54 CHGTEST="$LOCAL.chg.$RAND" |
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55 |
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56 # put all your required cleanup here |
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57 cleanup() { |
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58 rm -f "$BACKUP" "$CHGTEST" |
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59 rm -rf "$HGTMP" |
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60 } |
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61 |
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62 # functions concerning program exit |
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63 success() { |
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64 cleanup |
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65 exit 0 |
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66 } |
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67 |
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68 failure() { |
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69 echo "merge failed" 1>&2 |
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70 mv "$BACKUP" "$LOCAL" |
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71 cleanup |
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72 exit 1 |
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73 } |
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74 |
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75 # Ask if the merge was successful |
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76 ask_if_merged() { |
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77 while true; do |
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78 echo "$LOCAL seems unchanged." |
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79 echo "Was the merge successful? [y/n]" |
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80 read answer |
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81 case "$answer" in |
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82 y*|Y*) success;; |
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83 n*|N*) failure;; |
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84 esac |
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85 done |
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86 } |
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87 |
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88 # Clean up when interrupted |
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89 trap "failure" 1 2 3 6 15 # HUP INT QUIT ABRT TERM |
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90 |
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91 # Back up our file (and try hard to keep the mtime unchanged) |
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92 mv "$LOCAL" "$BACKUP" |
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93 cp "$BACKUP" "$LOCAL" |
240 | 94 |
95 # Attempt to do a non-interactive merge | |
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96 if [ -n "$MERGE" -o -n "$DIFF3" ]; then |
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97 if [ -n "$MERGE" ]; then |
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98 $MERGE "$LOCAL" "$BASE" "$OTHER" 2> /dev/null && success |
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99 elif [ -n "$DIFF3" ]; then |
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100 $DIFF3 -m "$BACKUP" "$BASE" "$OTHER" > "$LOCAL" && success |
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101 fi |
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102 if [ $? -gt 1 ]; then |
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103 echo "automatic merge failed! Exiting." 1>&2 |
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104 failure |
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105 fi |
240 | 106 fi |
107 | |
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108 # on MacOS X try FileMerge.app, shipped with Apple's developer tools |
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109 if [ -n "$FILEMERGE" ]; then |
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110 cp "$BACKUP" "$LOCAL" |
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111 cp "$BACKUP" "$CHGTEST" |
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112 # filemerge prefers the right by default |
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113 $FILEMERGE -left "$OTHER" -right "$LOCAL" -ancestor "$BASE" -merge "$LOCAL" |
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114 [ $? -ne 0 ] && echo "FileMerge failed to launch" && failure |
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115 test "$LOCAL" -nt "$CHGTEST" && success || ask_if_merged |
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116 fi |
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117 |
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118 if [ -n "$DISPLAY" ]; then |
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119 # try using kdiff3, which is fairly nice |
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120 if [ -n "$KDIFF3" ]; then |
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121 $KDIFF3 --auto "$BASE" "$BACKUP" "$OTHER" -o "$LOCAL" || failure |
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122 success |
240 | 123 fi |
124 | |
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125 # try using tkdiff, which is a bit less sophisticated |
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126 if [ -n "$TKDIFF" ]; then |
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127 $TKDIFF "$BACKUP" "$OTHER" -a "$BASE" -o "$LOCAL" || failure |
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128 success |
240 | 129 fi |
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130 |
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131 if [ -n "$MELD" ]; then |
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132 cp "$BACKUP" "$CHGTEST" |
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133 # protect our feet - meld allows us to save to the left file |
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134 cp "$BACKUP" "$LOCAL.tmp.$RAND" |
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135 # Meld doesn't have automatic merging, so to reduce intervention |
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136 # use the file with conflicts |
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137 $MELD "$LOCAL.tmp.$RAND" "$LOCAL" "$OTHER" || failure |
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138 # Also it doesn't return good error code |
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139 test "$LOCAL" -nt "$CHGTEST" && success || ask_if_merged |
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140 fi |
240 | 141 fi |
142 | |
143 # Attempt to do a merge with $EDITOR | |
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144 if [ -n "$MERGE" -o -n "$DIFF3" ]; then |
242 | 145 echo "conflicts detected in $LOCAL" |
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146 cp "$BACKUP" "$CHGTEST" |
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147 $EDITOR "$LOCAL" || failure |
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148 # Some editors do not return meaningful error codes |
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149 # Do not take any chances |
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150 test "$LOCAL" -nt "$CHGTEST" && success || ask_if_merged |
240 | 151 fi |
152 | |
153 # attempt to manually merge with diff and patch | |
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154 if [ -n "$DIFF" -a -n "$PATCH" ]; then |
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155 |
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156 (umask 077 && mkdir "$HGTMP") || { |
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157 echo "Could not create temporary directory $HGTMP" 1>&2 |
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158 failure |
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159 } |
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160 |
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161 $DIFF -u "$BASE" "$OTHER" > "$HGTMP/diff" || : |
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162 if $PATCH "$LOCAL" < "$HGTMP/diff"; then |
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163 success |
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164 else |
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165 # If rejects are empty after using the editor, merge was ok |
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166 $EDITOR "$LOCAL" "$LOCAL.rej" || failure |
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167 test -s "$LOCAL.rej" || success |
240 | 168 fi |
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169 failure |
240 | 170 fi |
171 | |
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172 echo |
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173 echo "hgmerge: unable to find any merge utility!" |
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174 echo "supported programs:" |
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175 echo "merge, FileMerge, tkdiff, kdiff3, meld, diff+patch" |
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176 echo |
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177 failure |