2007-03-06 05:05:16 +00:00
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#!/bin/sh
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#
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# This program resolves merge conflicts in git
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#
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# Copyright (c) 2006 Theodore Y. Ts'o
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#
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# This file is licensed under the GPL v2, or a later version
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2007-06-06 04:24:19 +00:00
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# at the discretion of Junio C Hamano.
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2007-03-06 05:05:16 +00:00
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#
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USAGE='[--tool=tool] [file to merge] ...'
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SUBDIRECTORY_OK=Yes
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2007-11-06 09:50:02 +00:00
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OPTIONS_SPEC=
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2007-03-06 05:05:16 +00:00
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. git-sh-setup
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require_work_tree
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2007-09-27 21:41:23 +00:00
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prefix=$(git rev-parse --show-prefix)
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2007-03-06 05:05:16 +00:00
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# Returns true if the mode reflects a symlink
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2007-03-29 10:55:11 +00:00
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is_symlink () {
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2007-03-06 05:05:16 +00:00
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test "$1" = 120000
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}
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2007-03-29 10:55:11 +00:00
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local_present () {
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2007-03-06 05:05:16 +00:00
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test -n "$local_mode"
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}
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2007-03-29 10:55:11 +00:00
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remote_present () {
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2007-03-06 05:05:16 +00:00
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test -n "$remote_mode"
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}
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2007-03-29 10:55:11 +00:00
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base_present () {
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2007-03-06 05:05:16 +00:00
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test -n "$base_mode"
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}
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cleanup_temp_files () {
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if test "$1" = --save-backup ; then
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2008-02-21 23:30:34 +00:00
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mv -- "$BACKUP" "$MERGED.orig"
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2007-03-06 05:05:16 +00:00
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rm -f -- "$LOCAL" "$REMOTE" "$BASE"
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else
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rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
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fi
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}
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2007-03-29 10:55:11 +00:00
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describe_file () {
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2007-03-06 05:05:16 +00:00
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mode="$1"
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branch="$2"
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file="$3"
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2007-03-29 15:39:46 +00:00
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printf " {%s}: " "$branch"
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2007-03-06 05:05:16 +00:00
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if test -z "$mode"; then
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2007-03-29 15:39:46 +00:00
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echo "deleted"
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2007-03-06 05:05:16 +00:00
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elif is_symlink "$mode" ; then
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2007-03-29 15:39:46 +00:00
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echo "a symbolic link -> '$(cat "$file")'"
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2007-03-06 05:05:16 +00:00
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else
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if base_present; then
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2007-03-29 15:39:46 +00:00
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echo "modified"
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2007-03-06 05:05:16 +00:00
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else
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2007-03-29 15:39:46 +00:00
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echo "created"
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2007-03-06 05:05:16 +00:00
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fi
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fi
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}
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resolve_symlink_merge () {
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2007-03-29 10:46:59 +00:00
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while true; do
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2007-03-29 15:39:46 +00:00
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printf "Use (l)ocal or (r)emote, or (a)bort? "
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2007-03-06 05:05:16 +00:00
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read ans
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case "$ans" in
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[lL]*)
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2008-02-21 23:30:34 +00:00
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git checkout-index -f --stage=2 -- "$MERGED"
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git add -- "$MERGED"
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2007-03-06 05:05:16 +00:00
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cleanup_temp_files --save-backup
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return
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;;
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2007-03-29 13:48:31 +00:00
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[rR]*)
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2008-02-21 23:30:34 +00:00
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git checkout-index -f --stage=3 -- "$MERGED"
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git add -- "$MERGED"
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2007-03-06 05:05:16 +00:00
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cleanup_temp_files --save-backup
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return
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;;
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2007-03-29 13:48:31 +00:00
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[aA]*)
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2007-03-06 05:05:16 +00:00
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exit 1
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;;
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esac
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done
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}
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resolve_deleted_merge () {
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2007-03-29 10:46:59 +00:00
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while true; do
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2007-03-29 15:39:46 +00:00
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if base_present; then
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printf "Use (m)odified or (d)eleted file, or (a)bort? "
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else
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printf "Use (c)reated or (d)eleted file, or (a)bort? "
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fi
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2007-03-06 05:05:16 +00:00
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read ans
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case "$ans" in
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2007-03-29 15:39:46 +00:00
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[mMcC]*)
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2008-02-21 23:30:34 +00:00
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git add -- "$MERGED"
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2007-03-06 05:05:16 +00:00
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cleanup_temp_files --save-backup
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return
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;;
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2007-03-29 13:48:31 +00:00
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[dD]*)
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2008-02-21 23:30:34 +00:00
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git rm -- "$MERGED" > /dev/null
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2007-03-06 05:05:16 +00:00
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cleanup_temp_files
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return
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;;
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2007-03-29 13:48:31 +00:00
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[aA]*)
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2007-03-06 05:05:16 +00:00
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exit 1
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;;
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esac
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done
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}
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2007-03-29 13:39:59 +00:00
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check_unchanged () {
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2008-02-21 23:30:34 +00:00
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if test "$MERGED" -nt "$BACKUP" ; then
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2007-03-29 13:39:59 +00:00
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status=0;
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else
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while true; do
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2008-02-21 23:30:34 +00:00
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echo "$MERGED seems unchanged."
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2007-03-29 13:39:59 +00:00
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printf "Was the merge successful? [y/n] "
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read answer < /dev/tty
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case "$answer" in
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y*|Y*) status=0; break ;;
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n*|N*) status=1; break ;;
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esac
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done
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fi
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}
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2007-03-06 05:05:16 +00:00
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merge_file () {
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2008-02-21 23:30:34 +00:00
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MERGED="$1"
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2007-03-06 05:05:16 +00:00
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2008-02-21 23:30:34 +00:00
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f=`git ls-files -u -- "$MERGED"`
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2007-03-06 05:05:16 +00:00
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if test -z "$f" ; then
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2008-02-21 23:30:34 +00:00
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if test ! -f "$MERGED" ; then
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echo "$MERGED: file not found"
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2007-03-27 22:00:03 +00:00
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else
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2008-02-21 23:30:34 +00:00
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echo "$MERGED: file does not need merging"
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2007-03-27 22:00:03 +00:00
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fi
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2007-03-06 05:05:16 +00:00
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exit 1
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fi
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2008-02-21 23:30:34 +00:00
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ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
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2008-06-16 23:33:41 +00:00
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BACKUP="./$MERGED.BACKUP.$ext"
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LOCAL="./$MERGED.LOCAL.$ext"
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REMOTE="./$MERGED.REMOTE.$ext"
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BASE="./$MERGED.BASE.$ext"
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2007-03-06 05:05:16 +00:00
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2008-02-21 23:30:34 +00:00
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mv -- "$MERGED" "$BACKUP"
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cp -- "$BACKUP" "$MERGED"
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2007-03-06 05:05:16 +00:00
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2008-02-21 23:30:34 +00:00
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base_mode=`git ls-files -u -- "$MERGED" | awk '{if ($3==1) print $1;}'`
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local_mode=`git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $1;}'`
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remote_mode=`git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $1;}'`
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2007-03-06 05:05:16 +00:00
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2008-02-21 23:30:34 +00:00
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base_present && git cat-file blob ":1:$prefix$MERGED" >"$BASE" 2>/dev/null
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local_present && git cat-file blob ":2:$prefix$MERGED" >"$LOCAL" 2>/dev/null
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remote_present && git cat-file blob ":3:$prefix$MERGED" >"$REMOTE" 2>/dev/null
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2007-03-06 05:05:16 +00:00
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if test -z "$local_mode" -o -z "$remote_mode"; then
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2008-02-21 23:30:34 +00:00
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echo "Deleted merge conflict for '$MERGED':"
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2007-03-06 05:05:16 +00:00
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describe_file "$local_mode" "local" "$LOCAL"
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describe_file "$remote_mode" "remote" "$REMOTE"
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resolve_deleted_merge
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return
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fi
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if is_symlink "$local_mode" || is_symlink "$remote_mode"; then
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2008-02-21 23:30:34 +00:00
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echo "Symbolic link merge conflict for '$MERGED':"
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2007-03-06 05:05:16 +00:00
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describe_file "$local_mode" "local" "$LOCAL"
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describe_file "$remote_mode" "remote" "$REMOTE"
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resolve_symlink_merge
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return
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fi
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2008-02-21 23:30:34 +00:00
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echo "Normal merge conflict for '$MERGED':"
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2007-03-06 05:05:16 +00:00
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describe_file "$local_mode" "local" "$LOCAL"
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describe_file "$remote_mode" "remote" "$REMOTE"
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2007-03-27 16:12:22 +00:00
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printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
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2007-03-06 05:05:16 +00:00
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read ans
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case "$merge_tool" in
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kdiff3)
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if base_present ; then
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2008-02-21 23:30:34 +00:00
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("$merge_tool_path" --auto --L1 "$MERGED (Base)" --L2 "$MERGED (Local)" --L3 "$MERGED (Remote)" \
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2008-06-16 23:33:41 +00:00
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-o "$MERGED" "$BASE" "$LOCAL" "$REMOTE" > /dev/null 2>&1)
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2007-03-06 05:05:16 +00:00
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else
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2008-02-21 23:30:34 +00:00
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("$merge_tool_path" --auto --L1 "$MERGED (Local)" --L2 "$MERGED (Remote)" \
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2008-06-16 23:33:41 +00:00
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-o "$MERGED" "$LOCAL" "$REMOTE" > /dev/null 2>&1)
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2007-03-06 05:05:16 +00:00
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fi
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status=$?
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;;
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tkdiff)
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if base_present ; then
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2008-06-16 23:33:41 +00:00
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"$merge_tool_path" -a "$BASE" -o "$MERGED" "$LOCAL" "$REMOTE"
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2007-03-06 05:05:16 +00:00
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else
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2008-06-16 23:33:41 +00:00
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"$merge_tool_path" -o "$MERGED" "$LOCAL" "$REMOTE"
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2007-03-06 05:05:16 +00:00
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fi
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status=$?
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;;
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2007-03-19 02:11:54 +00:00
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meld|vimdiff)
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2007-03-06 05:05:16 +00:00
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touch "$BACKUP"
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2008-06-16 23:33:41 +00:00
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"$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"
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2007-03-29 13:39:59 +00:00
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check_unchanged
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2007-03-06 05:05:16 +00:00
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;;
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2007-06-06 01:19:47 +00:00
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gvimdiff)
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2008-02-21 23:30:02 +00:00
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touch "$BACKUP"
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2008-06-16 23:33:41 +00:00
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"$merge_tool_path" -f "$LOCAL" "$MERGED" "$REMOTE"
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2008-02-21 23:30:02 +00:00
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check_unchanged
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;;
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2007-03-06 05:05:16 +00:00
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xxdiff)
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touch "$BACKUP"
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if base_present ; then
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2007-10-17 17:16:11 +00:00
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"$merge_tool_path" -X --show-merged-pane \
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2007-03-06 05:05:16 +00:00
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-R 'Accel.SaveAsMerged: "Ctrl-S"' \
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-R 'Accel.Search: "Ctrl+F"' \
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-R 'Accel.SearchForward: "Ctrl-G"' \
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2008-06-16 23:33:41 +00:00
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--merged-file "$MERGED" "$LOCAL" "$BASE" "$REMOTE"
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2007-03-06 05:05:16 +00:00
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else
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2007-10-17 17:16:11 +00:00
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"$merge_tool_path" -X --show-merged-pane \
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2007-03-06 05:05:16 +00:00
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-R 'Accel.SaveAsMerged: "Ctrl-S"' \
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-R 'Accel.Search: "Ctrl+F"' \
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-R 'Accel.SearchForward: "Ctrl-G"' \
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2008-06-16 23:33:41 +00:00
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--merged-file "$MERGED" "$LOCAL" "$REMOTE"
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2007-03-06 05:05:16 +00:00
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fi
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2007-03-29 13:39:59 +00:00
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check_unchanged
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2007-03-06 05:05:16 +00:00
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;;
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2007-03-29 14:03:17 +00:00
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opendiff)
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touch "$BACKUP"
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if base_present; then
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2008-02-21 23:30:34 +00:00
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"$merge_tool_path" "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$MERGED" | cat
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2007-03-29 14:03:17 +00:00
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else
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2008-02-21 23:30:34 +00:00
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"$merge_tool_path" "$LOCAL" "$REMOTE" -merge "$MERGED" | cat
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2007-03-29 14:03:17 +00:00
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fi
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check_unchanged
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;;
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2007-10-17 17:16:12 +00:00
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ecmerge)
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touch "$BACKUP"
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if base_present; then
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2008-05-06 10:53:56 +00:00
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"$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" --default --mode=merge3 --to="$MERGED"
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2007-10-17 17:16:12 +00:00
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else
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2008-05-06 10:53:56 +00:00
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"$merge_tool_path" "$LOCAL" "$REMOTE" --default --mode=merge2 --to="$MERGED"
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2007-10-17 17:16:12 +00:00
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fi
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check_unchanged
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;;
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2007-03-06 05:05:16 +00:00
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emerge)
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if base_present ; then
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2008-02-21 23:30:34 +00:00
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"$merge_tool_path" -f emerge-files-with-ancestor-command "$LOCAL" "$REMOTE" "$BASE" "$(basename "$MERGED")"
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2007-03-06 05:05:16 +00:00
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else
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2008-02-21 23:30:34 +00:00
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"$merge_tool_path" -f emerge-files-command "$LOCAL" "$REMOTE" "$(basename "$MERGED")"
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2007-03-06 05:05:16 +00:00
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fi
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status=$?
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;;
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2008-02-21 23:31:12 +00:00
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*)
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if test -n "$merge_tool_cmd"; then
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if test "$merge_tool_trust_exit_code" = "false"; then
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touch "$BACKUP"
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( eval $merge_tool_cmd )
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check_unchanged
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else
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( eval $merge_tool_cmd )
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status=$?
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fi
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fi
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;;
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2007-03-06 05:05:16 +00:00
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esac
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if test "$status" -ne 0; then
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2008-02-21 23:30:34 +00:00
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echo "merge of $MERGED failed" 1>&2
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mv -- "$BACKUP" "$MERGED"
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2007-03-06 05:05:16 +00:00
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exit 1
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fi
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2008-02-21 23:30:02 +00:00
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if test "$merge_keep_backup" = "true"; then
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2008-02-21 23:30:34 +00:00
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mv -- "$BACKUP" "$MERGED.orig"
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2008-02-21 23:30:02 +00:00
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else
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rm -- "$BACKUP"
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fi
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2008-02-21 23:30:34 +00:00
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git add -- "$MERGED"
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2007-03-06 05:05:16 +00:00
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cleanup_temp_files
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}
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2007-09-23 20:42:08 +00:00
|
|
|
while test $# != 0
|
2007-03-06 05:05:16 +00:00
|
|
|
do
|
|
|
|
case "$1" in
|
|
|
|
-t|--tool*)
|
|
|
|
case "$#,$1" in
|
|
|
|
*,*=*)
|
|
|
|
merge_tool=`expr "z$1" : 'z-[^=]*=\(.*\)'`
|
|
|
|
;;
|
|
|
|
1,*)
|
|
|
|
usage ;;
|
|
|
|
*)
|
|
|
|
merge_tool="$2"
|
|
|
|
shift ;;
|
|
|
|
esac
|
|
|
|
;;
|
|
|
|
--)
|
2008-12-20 01:01:01 +00:00
|
|
|
shift
|
2007-03-06 05:05:16 +00:00
|
|
|
break
|
|
|
|
;;
|
|
|
|
-*)
|
|
|
|
usage
|
|
|
|
;;
|
|
|
|
*)
|
|
|
|
break
|
|
|
|
;;
|
|
|
|
esac
|
|
|
|
shift
|
|
|
|
done
|
|
|
|
|
2008-02-21 23:31:12 +00:00
|
|
|
valid_custom_tool()
|
|
|
|
{
|
|
|
|
merge_tool_cmd="$(git config mergetool.$1.cmd)"
|
|
|
|
test -n "$merge_tool_cmd"
|
|
|
|
}
|
|
|
|
|
2007-10-17 17:16:11 +00:00
|
|
|
valid_tool() {
|
|
|
|
case "$1" in
|
2007-10-17 17:16:12 +00:00
|
|
|
kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | ecmerge)
|
2007-10-17 17:16:11 +00:00
|
|
|
;; # happy
|
|
|
|
*)
|
2008-02-21 23:31:12 +00:00
|
|
|
if ! valid_custom_tool "$1"; then
|
|
|
|
return 1
|
|
|
|
fi
|
2007-10-17 17:16:11 +00:00
|
|
|
;;
|
|
|
|
esac
|
|
|
|
}
|
|
|
|
|
|
|
|
init_merge_tool_path() {
|
|
|
|
merge_tool_path=`git config mergetool.$1.path`
|
|
|
|
if test -z "$merge_tool_path" ; then
|
|
|
|
case "$1" in
|
|
|
|
emerge)
|
|
|
|
merge_tool_path=emacs
|
|
|
|
;;
|
|
|
|
*)
|
|
|
|
merge_tool_path=$1
|
|
|
|
;;
|
|
|
|
esac
|
|
|
|
fi
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-03-06 05:05:16 +00:00
|
|
|
if test -z "$merge_tool"; then
|
2007-07-03 05:52:14 +00:00
|
|
|
merge_tool=`git config merge.tool`
|
2007-10-18 10:25:34 +00:00
|
|
|
if test -n "$merge_tool" && ! valid_tool "$merge_tool"; then
|
2007-03-19 02:30:10 +00:00
|
|
|
echo >&2 "git config option merge.tool set to unknown tool: $merge_tool"
|
|
|
|
echo >&2 "Resetting to default..."
|
|
|
|
unset merge_tool
|
2007-10-17 17:16:11 +00:00
|
|
|
fi
|
2007-03-06 05:05:16 +00:00
|
|
|
fi
|
|
|
|
|
|
|
|
if test -z "$merge_tool" ; then
|
2007-06-10 15:17:30 +00:00
|
|
|
if test -n "$DISPLAY"; then
|
|
|
|
merge_tool_candidates="kdiff3 tkdiff xxdiff meld gvimdiff"
|
|
|
|
if test -n "$GNOME_DESKTOP_SESSION_ID" ; then
|
|
|
|
merge_tool_candidates="meld $merge_tool_candidates"
|
|
|
|
fi
|
|
|
|
if test "$KDE_FULL_SESSION" = "true"; then
|
|
|
|
merge_tool_candidates="kdiff3 $merge_tool_candidates"
|
|
|
|
fi
|
|
|
|
fi
|
|
|
|
if echo "${VISUAL:-$EDITOR}" | grep 'emacs' > /dev/null 2>&1; then
|
|
|
|
merge_tool_candidates="$merge_tool_candidates emerge"
|
|
|
|
fi
|
|
|
|
if echo "${VISUAL:-$EDITOR}" | grep 'vim' > /dev/null 2>&1; then
|
|
|
|
merge_tool_candidates="$merge_tool_candidates vimdiff"
|
|
|
|
fi
|
|
|
|
merge_tool_candidates="$merge_tool_candidates opendiff emerge vimdiff"
|
|
|
|
echo "merge tool candidates: $merge_tool_candidates"
|
|
|
|
for i in $merge_tool_candidates; do
|
2007-10-17 17:16:11 +00:00
|
|
|
init_merge_tool_path $i
|
|
|
|
if type "$merge_tool_path" > /dev/null 2>&1; then
|
2007-06-10 15:17:30 +00:00
|
|
|
merge_tool=$i
|
|
|
|
break
|
|
|
|
fi
|
|
|
|
done
|
|
|
|
if test -z "$merge_tool" ; then
|
2007-10-17 17:16:11 +00:00
|
|
|
echo "No known merge resolution program available."
|
2007-03-06 05:05:16 +00:00
|
|
|
exit 1
|
|
|
|
fi
|
2007-10-17 17:16:11 +00:00
|
|
|
else
|
|
|
|
if ! valid_tool "$merge_tool"; then
|
|
|
|
echo >&2 "Unknown merge_tool $merge_tool"
|
|
|
|
exit 1
|
|
|
|
fi
|
|
|
|
|
|
|
|
init_merge_tool_path "$merge_tool"
|
|
|
|
|
2008-02-21 23:30:02 +00:00
|
|
|
merge_keep_backup="$(git config --bool merge.keepBackup || echo true)"
|
|
|
|
|
2008-02-21 23:31:12 +00:00
|
|
|
if test -z "$merge_tool_cmd" && ! type "$merge_tool_path" > /dev/null 2>&1; then
|
2007-10-17 17:16:11 +00:00
|
|
|
echo "The merge tool $merge_tool is not available as '$merge_tool_path'"
|
|
|
|
exit 1
|
|
|
|
fi
|
2008-02-21 23:31:12 +00:00
|
|
|
|
|
|
|
if ! test -z "$merge_tool_cmd"; then
|
|
|
|
merge_tool_trust_exit_code="$(git config --bool mergetool.$merge_tool.trustExitCode || echo false)"
|
|
|
|
fi
|
2007-03-06 05:05:16 +00:00
|
|
|
fi
|
|
|
|
|
|
|
|
|
|
|
|
if test $# -eq 0 ; then
|
|
|
|
files=`git ls-files -u | sed -e 's/^[^ ]* //' | sort -u`
|
|
|
|
if test -z "$files" ; then
|
|
|
|
echo "No files need merging"
|
|
|
|
exit 0
|
|
|
|
fi
|
2008-01-07 07:37:38 +00:00
|
|
|
echo Merging the files: "$files"
|
|
|
|
git ls-files -u |
|
|
|
|
sed -e 's/^[^ ]* //' |
|
|
|
|
sort -u |
|
|
|
|
while IFS= read i
|
2007-03-06 05:05:16 +00:00
|
|
|
do
|
2007-03-27 16:12:22 +00:00
|
|
|
printf "\n"
|
2007-03-06 05:05:16 +00:00
|
|
|
merge_file "$i" < /dev/tty > /dev/tty
|
|
|
|
done
|
|
|
|
else
|
|
|
|
while test $# -gt 0; do
|
2007-03-27 16:12:22 +00:00
|
|
|
printf "\n"
|
2007-03-06 05:05:16 +00:00
|
|
|
merge_file "$1"
|
|
|
|
shift
|
|
|
|
done
|
|
|
|
fi
|
|
|
|
exit 0
|