author | Thomas Arendsen Hein <thomas@intevation.de> |
Mon, 01 May 2006 19:17:34 +0200 | |
changeset 2174 | 3044a3fdae76 |
parent 2051 | 6a03cff2b0f5 |
child 4845 | e4480f2b61e9 |
permissions | -rwxr-xr-x |
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#!/bin/sh |
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# |
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# hgmerge - default merge helper for Mercurial |
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# |
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# This tries to find a way to do three-way merge on the current system. |
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# The result ought to end up in $1. Script is run in root directory of |
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# repository. |
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# |
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# Environment variables set by Mercurial: |
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# HG_FILE name of file within repo |
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# HG_MY_NODE revision being merged |
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# HG_OTHER_NODE revision being merged |
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set -e # bail out quickly on failure |
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||
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LOCAL="$1" |
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BASE="$2" |
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OTHER="$3" |
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if [ -z "$EDITOR" ]; then |
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EDITOR="vi" |
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fi |
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# find decent versions of our utilities, insisting on the GNU versions where we |
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# need to |
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MERGE="merge" |
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DIFF3="gdiff3" |
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DIFF="gdiff" |
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PATCH="gpatch" |
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type "$MERGE" >/dev/null 2>&1 || MERGE= |
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type "$DIFF3" >/dev/null 2>&1 || DIFF3="diff3" |
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$DIFF3 --version >/dev/null 2>&1 || DIFF3= |
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type "$DIFF" >/dev/null 2>&1 || DIFF="diff" |
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type "$DIFF" >/dev/null 2>&1 || DIFF= |
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type "$PATCH" >/dev/null 2>&1 || PATCH="patch" |
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type "$PATCH" >/dev/null 2>&1 || PATCH= |
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# find optional visual utilities |
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FILEMERGE="/Developer/Applications/Utilities/FileMerge.app/Contents/MacOS/FileMerge" |
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KDIFF3="kdiff3" |
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TKDIFF="tkdiff" |
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MELD="meld" |
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type "$FILEMERGE" >/dev/null 2>&1 || FILEMERGE= |
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type "$KDIFF3" >/dev/null 2>&1 || KDIFF3= |
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type "$TKDIFF" >/dev/null 2>&1 || TKDIFF= |
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type "$MELD" >/dev/null 2>&1 || MELD= |
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# Hack for Solaris |
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TEST="/usr/bin/test" |
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type "$TEST" >/dev/null 2>&1 || TEST="/bin/test" |
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type "$TEST" >/dev/null 2>&1 || TEST="test" |
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# random part of names |
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RAND="$RANDOM$RANDOM" |
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# temporary directory for diff+patch merge |
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HGTMP="${TMPDIR-/tmp}/hgmerge.$RAND" |
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# backup file |
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BACKUP="$LOCAL.orig.$RAND" |
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# file used to test for file change |
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CHGTEST="$LOCAL.chg.$RAND" |
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# put all your required cleanup here |
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cleanup() { |
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rm -f "$BACKUP" "$CHGTEST" |
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rm -rf "$HGTMP" |
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} |
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# functions concerning program exit |
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success() { |
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cleanup |
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exit 0 |
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} |
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failure() { |
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echo "merge failed" 1>&2 |
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mv "$BACKUP" "$LOCAL" |
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cleanup |
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exit 1 |
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} |
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# Ask if the merge was successful |
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ask_if_merged() { |
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while true; do |
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echo "$LOCAL seems unchanged." |
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echo "Was the merge successful? [y/n]" |
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read answer |
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case "$answer" in |
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y*|Y*) success;; |
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n*|N*) failure;; |
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esac |
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done |
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} |
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# Clean up when interrupted |
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trap "failure" 1 2 3 6 15 # HUP INT QUIT ABRT TERM |
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# Back up our file (and try hard to keep the mtime unchanged) |
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mv "$LOCAL" "$BACKUP" |
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cp "$BACKUP" "$LOCAL" |
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# Attempt to do a non-interactive merge |
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if [ -n "$MERGE" -o -n "$DIFF3" ]; then |
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if [ -n "$MERGE" ]; then |
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$MERGE "$LOCAL" "$BASE" "$OTHER" 2> /dev/null && success |
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elif [ -n "$DIFF3" ]; then |
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111 |
$DIFF3 -m "$BACKUP" "$BASE" "$OTHER" > "$LOCAL" && success |
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112 |
fi |
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113 |
if [ $? -gt 1 ]; then |
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114 |
echo "automatic merge failed! Exiting." 1>&2 |
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115 |
failure |
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116 |
fi |
240 | 117 |
fi |
118 |
||
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119 |
# on MacOS X try FileMerge.app, shipped with Apple's developer tools |
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120 |
if [ -n "$FILEMERGE" ]; then |
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121 |
cp "$BACKUP" "$LOCAL" |
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cp "$BACKUP" "$CHGTEST" |
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123 |
# filemerge prefers the right by default |
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124 |
$FILEMERGE -left "$OTHER" -right "$LOCAL" -ancestor "$BASE" -merge "$LOCAL" |
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125 |
[ $? -ne 0 ] && echo "FileMerge failed to launch" && failure |
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126 |
$TEST "$LOCAL" -nt "$CHGTEST" && success || ask_if_merged |
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Use of opendiff as merge program on MacOS X
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127 |
fi |
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128 |
|
303
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Check if $DISPLAY is set before using tkdiff or kdiff3.
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|
129 |
if [ -n "$DISPLAY" ]; then |
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130 |
# try using kdiff3, which is fairly nice |
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131 |
if [ -n "$KDIFF3" ]; then |
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132 |
$KDIFF3 --auto "$BASE" "$BACKUP" "$OTHER" -o "$LOCAL" || failure |
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133 |
success |
240 | 134 |
fi |
135 |
||
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|
136 |
# try using tkdiff, which is a bit less sophisticated |
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137 |
if [ -n "$TKDIFF" ]; then |
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138 |
$TKDIFF "$BACKUP" "$OTHER" -a "$BASE" -o "$LOCAL" || failure |
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|
139 |
success |
240 | 140 |
fi |
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|
141 |
|
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|
142 |
if [ -n "$MELD" ]; then |
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|
143 |
cp "$BACKUP" "$CHGTEST" |
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|
144 |
# protect our feet - meld allows us to save to the left file |
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|
145 |
cp "$BACKUP" "$LOCAL.tmp.$RAND" |
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|
146 |
# Meld doesn't have automatic merging, so to reduce intervention |
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|
147 |
# use the file with conflicts |
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|
148 |
$MELD "$LOCAL.tmp.$RAND" "$LOCAL" "$OTHER" || failure |
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|
149 |
# Also it doesn't return good error code |
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|
150 |
$TEST "$LOCAL" -nt "$CHGTEST" && success || ask_if_merged |
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changeset
|
151 |
fi |
240 | 152 |
fi |
153 |
||
154 |
# Attempt to do a merge with $EDITOR |
|
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changeset
|
155 |
if [ -n "$MERGE" -o -n "$DIFF3" ]; then |
242 | 156 |
echo "conflicts detected in $LOCAL" |
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changeset
|
157 |
cp "$BACKUP" "$CHGTEST" |
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|
158 |
$EDITOR "$LOCAL" || failure |
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|
159 |
# Some editors do not return meaningful error codes |
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|
160 |
# Do not take any chances |
2051
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changeset
|
161 |
$TEST "$LOCAL" -nt "$CHGTEST" && success || ask_if_merged |
240 | 162 |
fi |
163 |
||
164 |
# attempt to manually merge with diff and patch |
|
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Fix use of diff(1) triggered by set -e.
levon@movementarian.org
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changeset
|
165 |
if [ -n "$DIFF" -a -n "$PATCH" ]; then |
795
cd0ad12d9e42
Remove usage of ${par:-word}, which and mktemp. Quote filenames.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
547
diff
changeset
|
166 |
|
829
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Shortened hgmerge a little bit.
Thomas Arendsen Hein <thomas@intevation.de>
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changeset
|
167 |
(umask 077 && mkdir "$HGTMP") || { |
1770
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changeset
|
168 |
echo "Could not create temporary directory $HGTMP" 1>&2 |
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|
169 |
failure |
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Shortened hgmerge a little bit.
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parents:
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|
170 |
} |
795
cd0ad12d9e42
Remove usage of ${par:-word}, which and mktemp. Quote filenames.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
changeset
|
171 |
|
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Fix use of diff(1) triggered by set -e.
levon@movementarian.org
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839
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changeset
|
172 |
$DIFF -u "$BASE" "$OTHER" > "$HGTMP/diff" || : |
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Fix use of diff(1) triggered by set -e.
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changeset
|
173 |
if $PATCH "$LOCAL" < "$HGTMP/diff"; then |
1770
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|
174 |
success |
829
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Shortened hgmerge a little bit.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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changeset
|
175 |
else |
1770
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hgmerge: fix diff+patch detection; cleanups
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|
176 |
# If rejects are empty after using the editor, merge was ok |
1772
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Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
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changeset
|
177 |
$EDITOR "$LOCAL" "$LOCAL.rej" || failure |
2051
6a03cff2b0f5
Try to use /usr/bin/test or /bin/test to work around missing features.
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
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changeset
|
178 |
$TEST -s "$LOCAL.rej" || success |
240 | 179 |
fi |
1700
e2f91e0acbb8
hgmerge: add cleanup functions
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
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changeset
|
180 |
failure |
240 | 181 |
fi |
182 |
||
1773
aae93c3bffb4
hgmerge: improve "apps not found" message
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
parents:
1772
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changeset
|
183 |
echo |
aae93c3bffb4
hgmerge: improve "apps not found" message
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
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1772
diff
changeset
|
184 |
echo "hgmerge: unable to find any merge utility!" |
aae93c3bffb4
hgmerge: improve "apps not found" message
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
parents:
1772
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changeset
|
185 |
echo "supported programs:" |
1774
ac7b91bcbd8d
hgmerge: add meld support
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
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1773
diff
changeset
|
186 |
echo "merge, FileMerge, tkdiff, kdiff3, meld, diff+patch" |
1773
aae93c3bffb4
hgmerge: improve "apps not found" message
Radoslaw Szkodzinski <astralstorm@gorzow.mm.pl>
parents:
1772
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changeset
|
187 |
echo |
1700
e2f91e0acbb8
hgmerge: add cleanup functions
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1699
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changeset
|
188 |
failure |