annotate hgmerge @ 705:574869103985

Merge with TAH manifest hash: 197e0d1a0d7376a9eb72381330462f06490ab821
author mpm@selenic.com
date Thu, 14 Jul 2005 22:56:55 -0800
parents 4fc63e22b1fe
children cd0ad12d9e42 8f5637f0a0c0 0902ffece4b4
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3d4d5f2aba9a Remove bashisms and use /bin/sh instead of /bin/bash.
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1 #!/bin/sh
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2 #
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3 # hgmerge - default merge helper for Mercurial
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4 #
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5 # This tries to find a way to do three-way merge on the current system.
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6 # The result ought to end up in $1.
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7
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8 set -e # bail out quickly on failure
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9
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10 LOCAL=$1
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11 BASE=$2
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12 OTHER=$3
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13
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38fb7d23b78d Use vi if $EDITOR is unset.
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14 EDITOR="${EDITOR:-vi}"
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15
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16 # Back up our file
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17 cp $LOCAL $LOCAL.orig
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18
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19 # Attempt to do a non-interactive merge
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20 if which merge > /dev/null ; then
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21 if merge $LOCAL $BASE $OTHER 2> /dev/null; then
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22 # success!
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23 exit 0
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24 fi
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25 cp $LOCAL.orig $LOCAL
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26 elif which diff3 > /dev/null ; then
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27 if diff3 -m $LOCAL.orig $BASE $OTHER > $LOCAL ; then
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28 # success
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29 exit 0
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30 fi
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31 cp $LOCAL.orig $LOCAL
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32 fi
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33
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34 if [ -n "$DISPLAY" ]; then
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35 # try using kdiff3, which is fairly nice
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36 if which kdiff3 > /dev/null ; then
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37 if kdiff3 --auto $BASE $LOCAL $OTHER -o $LOCAL ; then
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38 exit 0
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39 else
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40 exit 1
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41 fi
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42 fi
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43
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44 # try using tkdiff, which is a bit less sophisticated
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45 if which tkdiff > /dev/null ; then
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46 if tkdiff $LOCAL $OTHER -a $BASE -o $LOCAL ; then
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47 exit 0
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48 else
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49 exit 1
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50 fi
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51 fi
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52 fi
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53
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54 # Attempt to do a merge with $EDITOR
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55 if which merge > /dev/null ; then
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56 echo "conflicts detected in $LOCAL"
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57 merge $LOCAL $BASE $OTHER 2>/dev/null || $EDITOR $LOCAL
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58 exit 0
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59 fi
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60
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61 if which diff3 > /dev/null ; then
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62 echo "conflicts detected in $LOCAL"
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63 diff3 -m $LOCAL.orig $BASE $OTHER > $LOCAL || $EDITOR $LOCAL
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64 exit 0
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65 fi
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66
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67 # attempt to manually merge with diff and patch
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68 if which diff > /dev/null ; then
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69 if which patch > /dev/null ; then
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70 T=`mktemp`
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71 diff -u $BASE $OTHER > $T
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72 if patch $LOCAL < $T ; then
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73 exit 0
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74 else
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75 $EDITOR $LOCAL $LOCAL.rej
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76 fi
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77 rm $T
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78 exit 1
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79 fi
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80 fi
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81
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82 echo "hgmerge: unable to find merge, tkdiff, kdiff3, or diff+patch!"
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83 exit 1