hgmerge
author mpm@selenic.com
Fri, 01 Jul 2005 00:10:52 -0800
changeset 553 f2442a6a5893
parent 547 4fc63e22b1fe
child 795 cd0ad12d9e42
child 808 8f5637f0a0c0
child 814 0902ffece4b4
permissions -rwxr-xr-x
Merge with TAH -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Merge with TAH manifest hash: b8ea5be49794773eeb6b8beb712a7c1bd9ed1e9b -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCxPqMywK+sNU5EO8RAn62AJ9nmqCKGck8T4E90V+jljRV56hcHwCff0Co jTfrJT1oJrGRgd6VE/B4hKc= =8nW7 -----END PGP SIGNATURE-----
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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.
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set -e # bail out quickly on failure
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LOCAL=$1
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BASE=$2
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OTHER=$3
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EDITOR="${EDITOR:-vi}"
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# Back up our file
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cp $LOCAL $LOCAL.orig
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# Attempt to do a non-interactive merge
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if which merge > /dev/null ; then
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    if merge $LOCAL $BASE $OTHER 2> /dev/null; then
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	# success!
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	exit 0
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    fi
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    cp $LOCAL.orig $LOCAL
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elif which diff3 > /dev/null ; then
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    if diff3 -m $LOCAL.orig $BASE $OTHER > $LOCAL ; then
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	# success
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	exit 0
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    fi
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    cp $LOCAL.orig $LOCAL
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fi
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if [ -n "$DISPLAY" ]; then
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    # try using kdiff3, which is fairly nice
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    if which kdiff3 > /dev/null ; then
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	if kdiff3 --auto $BASE $LOCAL $OTHER -o $LOCAL ; then
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	    exit 0
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	else
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	    exit 1
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	fi
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    fi
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    # try using tkdiff, which is a bit less sophisticated
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    if which tkdiff > /dev/null ; then
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	if tkdiff $LOCAL $OTHER -a $BASE -o $LOCAL ; then
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	    exit 0
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	else
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	    exit 1
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	fi
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    fi
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fi
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# Attempt to do a merge with $EDITOR
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if which merge > /dev/null ; then
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    echo "conflicts detected in $LOCAL"
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    merge $LOCAL $BASE $OTHER 2>/dev/null || $EDITOR $LOCAL
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    exit 0
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fi
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if which diff3 > /dev/null ; then
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    echo "conflicts detected in $LOCAL"
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    diff3 -m $LOCAL.orig $BASE $OTHER > $LOCAL || $EDITOR $LOCAL
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    exit 0
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fi
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# attempt to manually merge with diff and patch
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if which diff > /dev/null ; then
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    if which patch > /dev/null ; then
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	T=`mktemp`
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	diff -u $BASE $OTHER > $T
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	if patch $LOCAL < $T ; then
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	    exit 0
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	else
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	    $EDITOR $LOCAL $LOCAL.rej
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	fi
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	rm $T
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	exit 1
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    fi
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fi
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echo "hgmerge: unable to find merge, tkdiff, kdiff3, or diff+patch!"
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exit 1