[thirdparty/git.git] / git-mergetool.sh

#!/bin/sh
#
# This program resolves merge conflicts in git
#
# Copyright (c) 2006 Theodore Y. Ts'o
#
# This file is licensed under the GPL v2, or a later version
# at the discretion of Junio C Hamano.
#

USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [file to merge] ...'
SUBDIRECTORY_OK=Yes
OPTIONS_SPEC=
TOOL_MODE=merge
. git-sh-setup
. git-mergetool--lib
require_work_tree

# Returns true if the mode reflects a symlink
is_symlink () {
	test "$1" = 120000
}

is_submodule () {
	test "$1" = 160000
}

local_present () {
	test -n "$local_mode"
}

remote_present () {
	test -n "$remote_mode"
}

base_present () {
	test -n "$base_mode"
}

cleanup_temp_files () {
	if test "$1" = --save-backup
	then
		rm -rf -- "$MERGED.orig"
		test -e "$BACKUP" && mv -- "$BACKUP" "$MERGED.orig"
		rm -f -- "$LOCAL" "$REMOTE" "$BASE"
	else
		rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
	fi
}

describe_file () {
	mode="$1"
	branch="$2"
	file="$3"

	printf "  {%s}: " "$branch"
	if test -z "$mode"
	then
		echo "deleted"
	elif is_symlink "$mode"
	then
		echo "a symbolic link -> '$(cat "$file")'"
	elif is_submodule "$mode"
	then
		echo "submodule commit $file"
	elif base_present
	then
		echo "modified file"
	else
		echo "created file"
	fi
}

resolve_symlink_merge () {
	while true
	do
		printf "Use (l)ocal or (r)emote, or (a)bort? "
		read ans || return 1
		case "$ans" in
		[lL]*)
			git checkout-index -f --stage=2 -- "$MERGED"
			git add -- "$MERGED"
			cleanup_temp_files --save-backup
			return 0
			;;
		[rR]*)
			git checkout-index -f --stage=3 -- "$MERGED"
			git add -- "$MERGED"
			cleanup_temp_files --save-backup
			return 0
			;;
		[aA]*)
			return 1
			;;
		esac
	done
}

resolve_deleted_merge () {
	while true
	do
		if base_present
		then
			printf "Use (m)odified or (d)eleted file, or (a)bort? "
		else
			printf "Use (c)reated or (d)eleted file, or (a)bort? "
		fi
		read ans || return 1
		case "$ans" in
		[mMcC]*)
			git add -- "$MERGED"
			cleanup_temp_files --save-backup
			return 0
			;;
		[dD]*)
			git rm -- "$MERGED" > /dev/null
			cleanup_temp_files
			return 0
			;;
		[aA]*)
			return 1
			;;
		esac
	done
}

resolve_submodule_merge () {
	while true
	do
		printf "Use (l)ocal or (r)emote, or (a)bort? "
		read ans || return 1
		case "$ans" in
		[lL]*)
			if ! local_present
			then
				if test -n "$(git ls-tree HEAD -- "$MERGED")"
				then
					# Local isn't present, but it's a subdirectory
					git ls-tree --full-name -r HEAD -- "$MERGED" |
					git update-index --index-info || exit $?
				else
					test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
					git update-index --force-remove "$MERGED"
					cleanup_temp_files --save-backup
				fi
			elif is_submodule "$local_mode"
			then
				stage_submodule "$MERGED" "$local_sha1"
			else
				git checkout-index -f --stage=2 -- "$MERGED"
				git add -- "$MERGED"
			fi
			return 0
			;;
		[rR]*)
			if ! remote_present
			then
				if test -n "$(git ls-tree MERGE_HEAD -- "$MERGED")"
				then
					# Remote isn't present, but it's a subdirectory
					git ls-tree --full-name -r MERGE_HEAD -- "$MERGED" |
					git update-index --index-info || exit $?
				else
					test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
					git update-index --force-remove "$MERGED"
				fi
			elif is_submodule "$remote_mode"
			then
				! is_submodule "$local_mode" &&
				test -e "$MERGED" &&
				mv -- "$MERGED" "$BACKUP"
				stage_submodule "$MERGED" "$remote_sha1"
			else
				test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
				git checkout-index -f --stage=3 -- "$MERGED"
				git add -- "$MERGED"
			fi
			cleanup_temp_files --save-backup
			return 0
			;;
		[aA]*)
			return 1
			;;
		esac
	done
}

stage_submodule () {
	path="$1"
	submodule_sha1="$2"
	mkdir -p "$path" ||
	die "fatal: unable to create directory for module at $path"
	# Find $path relative to work tree
	work_tree_root=$(cd_to_toplevel && pwd)
	work_rel_path=$(cd "$path" &&
		GIT_WORK_TREE="${work_tree_root}" git rev-parse --show-prefix
	)
	test -n "$work_rel_path" ||
	die "fatal: unable to get path of module $path relative to work tree"
	git update-index --add --replace --cacheinfo 160000 "$submodule_sha1" "${work_rel_path%/}" || die
}

checkout_staged_file () {
	tmpfile=$(expr \
		"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
		: '\([^	]*\)	')

	if test $? -eq 0 -a -n "$tmpfile"
	then
		mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
	else
		>"$3"
	fi
}

merge_file () {
	MERGED="$1"

	f=$(git ls-files -u -- "$MERGED")
	if test -z "$f"
	then
		if test ! -f "$MERGED"
		then
			echo "$MERGED: file not found"
		else
			echo "$MERGED: file does not need merging"
		fi
		return 1
	fi

	ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
	BACKUP="./$MERGED.BACKUP.$ext"
	LOCAL="./$MERGED.LOCAL.$ext"
	REMOTE="./$MERGED.REMOTE.$ext"
	BASE="./$MERGED.BASE.$ext"

	base_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==1) print $1;}')
	local_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $1;}')
	remote_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $1;}')

	if is_submodule "$local_mode" || is_submodule "$remote_mode"
	then
		echo "Submodule merge conflict for '$MERGED':"
		local_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $2;}')
		remote_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $2;}')
		describe_file "$local_mode" "local" "$local_sha1"
		describe_file "$remote_mode" "remote" "$remote_sha1"
		resolve_submodule_merge
		return
	fi

	mv -- "$MERGED" "$BACKUP"
	cp -- "$BACKUP" "$MERGED"

	checkout_staged_file 1 "$MERGED" "$BASE"
	checkout_staged_file 2 "$MERGED" "$LOCAL"
	checkout_staged_file 3 "$MERGED" "$REMOTE"

	if test -z "$local_mode" -o -z "$remote_mode"
	then
		echo "Deleted merge conflict for '$MERGED':"
		describe_file "$local_mode" "local" "$LOCAL"
		describe_file "$remote_mode" "remote" "$REMOTE"
		resolve_deleted_merge
		return
	fi

	if is_symlink "$local_mode" || is_symlink "$remote_mode"
	then
		echo "Symbolic link merge conflict for '$MERGED':"
		describe_file "$local_mode" "local" "$LOCAL"
		describe_file "$remote_mode" "remote" "$REMOTE"
		resolve_symlink_merge
		return
	fi

	echo "Normal merge conflict for '$MERGED':"
	describe_file "$local_mode" "local" "$LOCAL"
	describe_file "$remote_mode" "remote" "$REMOTE"
	if "$prompt" = true
	then
		printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
		read ans || return 1
	fi

	if base_present
	then
		present=true
	else
		present=false
	fi

	if ! run_merge_tool "$merge_tool" "$present"
	then
		echo "merge of $MERGED failed" 1>&2
		mv -- "$BACKUP" "$MERGED"

		if test "$merge_keep_temporaries" = "false"
		then
			cleanup_temp_files
		fi

		return 1
	fi

	if test "$merge_keep_backup" = "true"
	then
		mv -- "$BACKUP" "$MERGED.orig"
	else
		rm -- "$BACKUP"
	fi

	git add -- "$MERGED"
	cleanup_temp_files
	return 0
}

show_tool_help () {
	TOOL_MODE=merge
	list_merge_tool_candidates
	unavailable= available= LF='
'
	for i in $tools
	do
		merge_tool_path=$(translate_merge_tool_path "$i")
		if type "$merge_tool_path" >/dev/null 2>&1
		then
			available="$available$i$LF"
		else
			unavailable="$unavailable$i$LF"
		fi
	done
	if test -n "$available"
	then
		echo "'git mergetool --tool=<tool>' may be set to one of the following:"
		echo "$available" | sort | sed -e 's/^/	/'
	else
		echo "No suitable tool for 'git mergetool --tool=<tool>' found."
	fi
	if test -n "$unavailable"
	then
		echo
		echo 'The following tools are valid, but not currently available:'
		echo "$unavailable" | sort | sed -e 's/^/	/'
	fi
	if test -n "$unavailable$available"
	then
		echo
		echo "Some of the tools listed above only work in a windowed"
		echo "environment. If run in a terminal-only session, they will fail."
	fi
	exit 0
}

prompt=$(git config --bool mergetool.prompt || echo true)

while test $# != 0
do
	case "$1" in
	--tool-help)
		show_tool_help
		;;
	-t|--tool*)
		case "$#,$1" in
		*,*=*)
			merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
			;;
		1,*)
			usage ;;
		*)
			merge_tool="$2"
			shift ;;
		esac
		;;
	-y|--no-prompt)
		prompt=false
		;;
	--prompt)
		prompt=true
		;;
	--)
		shift
		break
		;;
	-*)
		usage
		;;
	*)
		break
		;;
	esac
	shift
done

prompt_after_failed_merge () {
	while true
	do
		printf "Continue merging other unresolved paths (y/n) ? "
		read ans || return 1
		case "$ans" in
		[yY]*)
			return 0
			;;
		[nN]*)
			return 1
			;;
		esac
	done
}

if test -z "$merge_tool"
then
	merge_tool=$(get_merge_tool "$merge_tool") || exit
fi
merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"

last_status=0
rollup_status=0
files=

if test $# -eq 0
then
	cd_to_toplevel

	if test -e "$GIT_DIR/MERGE_RR"
	then
		files=$(git rerere remaining)
	else
		files=$(git ls-files -u | sed -e 's/^[^	]*	//' | sort -u)
	fi
else
	files=$(git ls-files -u -- "$@" | sed -e 's/^[^	]*	//' | sort -u)
fi

if test -z "$files"
then
	echo "No files need merging"
	exit 0
fi

printf "Merging:\n"
printf "%s\n" "$files"

IFS='
'
for i in $files
do
	if test $last_status -ne 0
	then
		prompt_after_failed_merge || exit 1
	fi
	printf "\n"
	merge_file "$i"
	last_status=$?
	if test $last_status -ne 0
	then
		rollup_status=1
	fi
done

exit $rollup_status
Commit	Line	Data
c4b4a5af TT	1	#!/bin/sh
	2	#
	3	# This program resolves merge conflicts in git
	4	#
	5	# Copyright (c) 2006 Theodore Y. Ts'o
	6	#
	7	# This file is licensed under the GPL v2, or a later version
2571ac67	8	# at the discretion of Junio C Hamano.
c4b4a5af TT	9	#
c4b4a5af TT	10
109859e2	11	USAGE='[--tool=tool] [--tool-help] [-y\|--no-prompt\|--prompt] [file to merge] ...'
c4b4a5af	12	SUBDIRECTORY_OK=Yes
8f321a39	13	OPTIONS_SPEC=
21d0ba7e	14	TOOL_MODE=merge
c4b4a5af	15	. git-sh-setup
21d0ba7e	16	. git-mergetool--lib
c4b4a5af TT	17	require_work_tree
	18
	19	# Returns true if the mode reflects a symlink
262c981e	20	is_symlink () {
f8750a0e	21	test "$1" = 120000
c4b4a5af TT	22	}
c4b4a5af TT	23
ff7f089e	24	is_submodule () {
f8750a0e	25	test "$1" = 160000
ff7f089e JM	26	}
ff7f089e JM	27
262c981e	28	local_present () {
f8750a0e	29	test -n "$local_mode"
c4b4a5af TT	30	}
c4b4a5af TT	31
262c981e	32	remote_present () {
f8750a0e	33	test -n "$remote_mode"
c4b4a5af TT	34	}
c4b4a5af TT	35
262c981e	36	base_present () {
f8750a0e	37	test -n "$base_mode"
c4b4a5af TT	38	}
	39
	40	cleanup_temp_files () {
f8750a0e JH	41	if test "$1" = --save-backup
	42	then
	43	rm -rf -- "$MERGED.orig"
	44	test -e "$BACKUP" && mv -- "$BACKUP" "$MERGED.orig"
	45	rm -f -- "$LOCAL" "$REMOTE" "$BASE"
	46	else
	47	rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
	48	fi
c4b4a5af TT	49	}
c4b4a5af TT	50
262c981e	51	describe_file () {
f8750a0e JH	52	mode="$1"
	53	branch="$2"
	54	file="$3"
	55
	56	printf " {%s}: " "$branch"
	57	if test -z "$mode"
	58	then
	59	echo "deleted"
	60	elif is_symlink "$mode"
	61	then
	62	echo "a symbolic link -> '$(cat "$file")'"
	63	elif is_submodule "$mode"
	64	then
	65	echo "submodule commit $file"
	66	elif base_present
	67	then
	68	echo "modified file"
c4b4a5af	69	else
f8750a0e	70	echo "created file"
c4b4a5af	71	fi
c4b4a5af TT	72	}
c4b4a5af TT	73
c4b4a5af	74	resolve_symlink_merge () {
f8750a0e JH	75	while true
	76	do
	77	printf "Use (l)ocal or (r)emote, or (a)bort? "
	78	read ans \|\| return 1
	79	case "$ans" in
	80	[lL]*)
	81	git checkout-index -f --stage=2 -- "$MERGED"
	82	git add -- "$MERGED"
	83	cleanup_temp_files --save-backup
	84	return 0
	85	;;
	86	[rR]*)
	87	git checkout-index -f --stage=3 -- "$MERGED"
	88	git add -- "$MERGED"
	89	cleanup_temp_files --save-backup
	90	return 0
	91	;;
	92	[aA]*)
	93	return 1
	94	;;
	95	esac
c4b4a5af TT	96	done
	97	}
	98
	99	resolve_deleted_merge () {
f8750a0e JH	100	while true
	101	do
	102	if base_present
	103	then
	104	printf "Use (m)odified or (d)eleted file, or (a)bort? "
	105	else
	106	printf "Use (c)reated or (d)eleted file, or (a)bort? "
	107	fi
	108	read ans \|\| return 1
	109	case "$ans" in
	110	[mMcC]*)
	111	git add -- "$MERGED"
	112	cleanup_temp_files --save-backup
	113	return 0
	114	;;
	115	[dD]*)
	116	git rm -- "$MERGED" > /dev/null
	117	cleanup_temp_files
	118	return 0
	119	;;
	120	[aA]*)
	121	return 1
	122	;;
	123	esac
c4b4a5af TT	124	done
	125	}
	126
ff7f089e	127	resolve_submodule_merge () {
f8750a0e JH	128	while true
	129	do
	130	printf "Use (l)ocal or (r)emote, or (a)bort? "
	131	read ans \|\| return 1
	132	case "$ans" in
	133	[lL]*)
	134	if ! local_present
	135	then
	136	if test -n "$(git ls-tree HEAD -- "$MERGED")"
	137	then
	138	# Local isn't present, but it's a subdirectory
	139	git ls-tree --full-name -r HEAD -- "$MERGED" \|
	140	git update-index --index-info \|\| exit $?
	141	else
	142	test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
	143	git update-index --force-remove "$MERGED"
	144	cleanup_temp_files --save-backup
	145	fi
	146	elif is_submodule "$local_mode"
	147	then
	148	stage_submodule "$MERGED" "$local_sha1"
	149	else
	150	git checkout-index -f --stage=2 -- "$MERGED"
	151	git add -- "$MERGED"
	152	fi
	153	return 0
	154	;;
	155	[rR]*)
	156	if ! remote_present
	157	then
	158	if test -n "$(git ls-tree MERGE_HEAD -- "$MERGED")"
	159	then
	160	# Remote isn't present, but it's a subdirectory
	161	git ls-tree --full-name -r MERGE_HEAD -- "$MERGED" \|
	162	git update-index --index-info \|\| exit $?
	163	else
	164	test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
	165	git update-index --force-remove "$MERGED"
	166	fi
	167	elif is_submodule "$remote_mode"
	168	then
	169	! is_submodule "$local_mode" &&
	170	test -e "$MERGED" &&
	171	mv -- "$MERGED" "$BACKUP"
	172	stage_submodule "$MERGED" "$remote_sha1"
	173	else
	174	test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
	175	git checkout-index -f --stage=3 -- "$MERGED"
	176	git add -- "$MERGED"
	177	fi
ff7f089e	178	cleanup_temp_files --save-backup
f8750a0e JH	179	return 0
	180	;;
	181	[aA]*)
	182	return 1
	183	;;
	184	esac
ff7f089e JM	185	done
	186	}
	187
	188	stage_submodule () {
f8750a0e JH	189	path="$1"
	190	submodule_sha1="$2"
	191	mkdir -p "$path" \|\|
	192	die "fatal: unable to create directory for module at $path"
	193	# Find $path relative to work tree
	194	work_tree_root=$(cd_to_toplevel && pwd)
	195	work_rel_path=$(cd "$path" &&
	196	GIT_WORK_TREE="${work_tree_root}" git rev-parse --show-prefix
	197	)
	198	test -n "$work_rel_path" \|\|
	199	die "fatal: unable to get path of module $path relative to work tree"
	200	git update-index --add --replace --cacheinfo 160000 "$submodule_sha1" "${work_rel_path%/}" \|\| die
ff7f089e JM	201	}
ff7f089e JM	202
0ec7b6c2	203	checkout_staged_file () {
f8750a0e JH	204	tmpfile=$(expr \
	205	"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
	206	: '\([^ ]*\) ')
	207
	208	if test $? -eq 0 -a -n "$tmpfile"
	209	then
	210	mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
	211	else
	212	>"$3"
	213	fi
0ec7b6c2 CB	214	}
0ec7b6c2 CB	215
c4b4a5af	216	merge_file () {
f8750a0e	217	MERGED="$1"
c4b4a5af	218
f8750a0e JH	219	f=$(git ls-files -u -- "$MERGED")
	220	if test -z "$f"
	221	then
	222	if test ! -f "$MERGED"
	223	then
	224	echo "$MERGED: file not found"
	225	else
	226	echo "$MERGED: file does not need merging"
	227	fi
	228	return 1
ce5b6d75	229	fi
c4b4a5af	230
f8750a0e JH	231	ext="$$$(expr "$MERGED" : '.\(\.[^/]\)$')"
	232	BACKUP="./$MERGED.BACKUP.$ext"
	233	LOCAL="./$MERGED.LOCAL.$ext"
	234	REMOTE="./$MERGED.REMOTE.$ext"
	235	BASE="./$MERGED.BASE.$ext"
	236
	237	base_mode=$(git ls-files -u -- "$MERGED" \| awk '{if ($3==1) print $1;}')
	238	local_mode=$(git ls-files -u -- "$MERGED" \| awk '{if ($3==2) print $1;}')
	239	remote_mode=$(git ls-files -u -- "$MERGED" \| awk '{if ($3==3) print $1;}')
	240
	241	if is_submodule "$local_mode" \|\| is_submodule "$remote_mode"
	242	then
	243	echo "Submodule merge conflict for '$MERGED':"
	244	local_sha1=$(git ls-files -u -- "$MERGED" \| awk '{if ($3==2) print $2;}')
	245	remote_sha1=$(git ls-files -u -- "$MERGED" \| awk '{if ($3==3) print $2;}')
	246	describe_file "$local_mode" "local" "$local_sha1"
	247	describe_file "$remote_mode" "remote" "$remote_sha1"
	248	resolve_submodule_merge
	249	return
	250	fi
	251
	252	mv -- "$MERGED" "$BACKUP"
	253	cp -- "$BACKUP" "$MERGED"
	254
	255	checkout_staged_file 1 "$MERGED" "$BASE"
	256	checkout_staged_file 2 "$MERGED" "$LOCAL"
	257	checkout_staged_file 3 "$MERGED" "$REMOTE"
	258
	259	if test -z "$local_mode" -o -z "$remote_mode"
	260	then
	261	echo "Deleted merge conflict for '$MERGED':"
	262	describe_file "$local_mode" "local" "$LOCAL"
	263	describe_file "$remote_mode" "remote" "$REMOTE"
	264	resolve_deleted_merge
	265	return
	266	fi
	267
	268	if is_symlink "$local_mode" \|\| is_symlink "$remote_mode"
	269	then
	270	echo "Symbolic link merge conflict for '$MERGED':"
	271	describe_file "$local_mode" "local" "$LOCAL"
	272	describe_file "$remote_mode" "remote" "$REMOTE"
	273	resolve_symlink_merge
	274	return
	275	fi
	276
	277	echo "Normal merge conflict for '$MERGED':"
c4b4a5af TT	278	describe_file "$local_mode" "local" "$LOCAL"
c4b4a5af TT	279	describe_file "$remote_mode" "remote" "$REMOTE"
f8750a0e JH	280	if "$prompt" = true
	281	then
	282	printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
	283	read ans \|\| return 1
162eba8b CB	284	fi
162eba8b CB	285
f8750a0e JH	286	if base_present
	287	then
	288	present=true
	289	else
	290	present=false
	291	fi
	292
	293	if ! run_merge_tool "$merge_tool" "$present"
	294	then
	295	echo "merge of $MERGED failed" 1>&2
	296	mv -- "$BACKUP" "$MERGED"
	297
	298	if test "$merge_keep_temporaries" = "false"
	299	then
	300	cleanup_temp_files
	301	fi
44c36d1c	302
f8750a0e JH	303	return 1
f8750a0e JH	304	fi
44c36d1c	305
f8750a0e JH	306	if test "$merge_keep_backup" = "true"
	307	then
	308	mv -- "$BACKUP" "$MERGED.orig"
	309	else
	310	rm -- "$BACKUP"
	311	fi
	312
	313	git add -- "$MERGED"
	314	cleanup_temp_files
	315	return 0
c4b4a5af TT	316	}
c4b4a5af TT	317
109859e2 JH	318	show_tool_help () {
	319	TOOL_MODE=merge
	320	list_merge_tool_candidates
	321	unavailable= available= LF='
	322	'
	323	for i in $tools
	324	do
	325	merge_tool_path=$(translate_merge_tool_path "$i")
	326	if type "$merge_tool_path" >/dev/null 2>&1
	327	then
	328	available="$available$i$LF"
	329	else
	330	unavailable="$unavailable$i$LF"
	331	fi
	332	done
	333	if test -n "$available"
	334	then
	335	echo "'git mergetool --tool=<tool>' may be set to one of the following:"
	336	echo "$available" \| sort \| sed -e 's/^/ /'
	337	else
	338	echo "No suitable tool for 'git mergetool --tool=<tool>' found."
	339	fi
	340	if test -n "$unavailable"
	341	then
	342	echo
	343	echo 'The following tools are valid, but not currently available:'
	344	echo "$unavailable" \| sort \| sed -e 's/^/ /'
	345	fi
	346	if test -n "$unavailable$available"
	347	then
	348	echo
	349	echo "Some of the tools listed above only work in a windowed"
	350	echo "environment. If run in a terminal-only session, they will fail."
	351	fi
	352	exit 0
	353	}
	354
682b451f CB	355	prompt=$(git config --bool mergetool.prompt \|\| echo true)
682b451f CB	356
822f7c73	357	while test $# != 0
c4b4a5af	358	do
f8750a0e	359	case "$1" in
109859e2 JH	360	--tool-help)
	361	show_tool_help
	362	;;
c4b4a5af	363	-t\|--tool*)
f8750a0e	364	case "$#,$1" in
c4b4a5af	365	,=*)
f8750a0e JH	366	merge_tool=$(expr "z$1" : 'z-[^=]=\(.\)')
f8750a0e JH	367	;;
c4b4a5af	368	1,*)
f8750a0e	369	usage ;;
c4b4a5af	370	*)
f8750a0e JH	371	merge_tool="$2"
	372	shift ;;
	373	esac
	374	;;
682b451f	375	-y\|--no-prompt)
f8750a0e JH	376	prompt=false
f8750a0e JH	377	;;
682b451f	378	--prompt)
f8750a0e JH	379	prompt=true
f8750a0e JH	380	;;
c4b4a5af	381	--)
f8750a0e JH	382	shift
	383	break
	384	;;
c4b4a5af	385	-*)
f8750a0e	386	usage
b0169d84	387	;;
f8750a0e JH	388	*)
f8750a0e JH	389	break
b0169d84 CB	390	;;
b0169d84 CB	391	esac
f8750a0e JH	392	shift
	393	done
	394
	395	prompt_after_failed_merge () {
	396	while true
	397	do
	398	printf "Continue merging other unresolved paths (y/n) ? "
	399	read ans \|\| return 1
	400	case "$ans" in
	401	[yY]*)
	402	return 0
	403	;;
	404	[nN]*)
	405	return 1
	406	;;
	407	esac
	408	done
b0169d84	409	}
e3fa2c76	410
f8750a0e JH	411	if test -z "$merge_tool"
	412	then
	413	merge_tool=$(get_merge_tool "$merge_tool") \|\| exit
47d65924	414	fi
70af4e9b	415	merge_keep_backup="$(git config --bool mergetool.keepBackup \|\| echo true)"
21d0ba7e	416	merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries \|\| echo false)"
c4b4a5af	417
b0169d84 CB	418	last_status=0
b0169d84 CB	419	rollup_status=0
3e8e691a	420	files=
c4b4a5af	421
f8750a0e JH	422	if test $# -eq 0
	423	then
	424	cd_to_toplevel
bb0a484e	425
f8750a0e JH	426	if test -e "$GIT_DIR/MERGE_RR"
	427	then
	428	files=$(git rerere remaining)
	429	else
	430	files=$(git ls-files -u \| sed -e 's/^[^ ]* //' \| sort -u)
	431	fi
3e8e691a	432	else
f8750a0e	433	files=$(git ls-files -u -- "$@" \| sed -e 's/^[^ ]* //' \| sort -u)
3e8e691a	434	fi
af314714	435
f8750a0e JH	436	if test -z "$files"
	437	then
	438	echo "No files need merging"
	439	exit 0
3e8e691a	440	fi
af314714	441
3e8e691a	442	printf "Merging:\n"
59cf706b	443	printf "%s\n" "$files"
bb0a484e	444
3e8e691a	445	IFS='
6d9990a9 JH	446	'
6d9990a9 JH	447	for i in $files
3e8e691a	448	do
f8750a0e JH	449	if test $last_status -ne 0
	450	then
	451	prompt_after_failed_merge \|\| exit 1
	452	fi
	453	printf "\n"
	454	merge_file "$i"
	455	last_status=$?
	456	if test $last_status -ne 0
	457	then
	458	rollup_status=1
	459	fi
3e8e691a	460	done
b0169d84 CB	461
b0169d84 CB	462	exit $rollup_status