[PATCH 1/8] mergetool: use tabs consistently

[David Aguilar <davvid@gmail.com>]

This makes mergetool use hard tabs throughout.

Signed-off-by: David Aguilar <davvid@gmail.com>
---
 git-mergetool.sh |  694 +++++++++++++++++++++++++++--------------------------
 1 files changed, 354 insertions(+), 340 deletions(-)

diff --git a/git-mergetool.sh b/git-mergetool.sh
index 87fa88a..cfee28e 100755
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -16,336 +16,351 @@ require_work_tree
 
 # Returns true if the mode reflects a symlink
 is_symlink () {
-    test "$1" = 120000
+	test "$1" = 120000
 }
 
 local_present () {
-    test -n "$local_mode"
+	test -n "$local_mode"
 }
 
 remote_present () {
-    test -n "$remote_mode"
+	test -n "$remote_mode"
 }
 
 base_present () {
-    test -n "$base_mode"
+	test -n "$base_mode"
 }
 
 cleanup_temp_files () {
-    if test "$1" = --save-backup ; then
-	mv -- "$BACKUP" "$MERGED.orig"
-	rm -f -- "$LOCAL" "$REMOTE" "$BASE"
-    else
-	rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
-    fi
+	if test "$1" = --save-backup ; then
+		mv -- "$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")'"
-    else
-	if base_present; then
-	    echo "modified"
+	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")'"
 	else
-	    echo "created"
+		if base_present; then
+			echo "modified"
+		else
+			echo "created"
+		fi
 	fi
-    fi
 }
 
 
 resolve_symlink_merge () {
-    while true; do
-	printf "Use (l)ocal or (r)emote, or (a)bort? "
-	read ans
-	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 -- "$MERGED"
-		cleanup_temp_files --save-backup
-		return 0
-		;;
-	    [aA]*)
-		return 1
-		;;
-	    esac
+	while true; do
+		printf "Use (l)ocal or (r)emote, or (a)bort? "
+		read ans
+		case "$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
-	case "$ans" in
-	    [mMcC]*)
-		git add -- "$MERGED"
-		cleanup_temp_files --save-backup
-		return 0
-		;;
-	    [dD]*)
-		git rm -- "$MERGED" > /dev/null
-		cleanup_temp_files
-		return 0
-		;;
-	    [aA]*)
-		return 1
-		;;
-	    esac
+	while true; do
+		if base_present; then
+			printf "Use (m)odified or (d)eleted file, or (a)bort? "
+		else
+			printf "Use (c)reated or (d)eleted file, or (a)bort? "
+		fi
+		read ans
+		case "$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
 }
 
 check_unchanged () {
-    if test "$MERGED" -nt "$BACKUP" ; then
-	status=0;
-    else
-	while true; do
-	    echo "$MERGED seems unchanged."
-	    printf "Was the merge successful? [y/n] "
-	    read answer < /dev/tty
-	    case "$answer" in
-		y*|Y*) status=0; break ;;
-		n*|N*) status=1; break ;;
-	    esac
-	done
-    fi
+	if test "$MERGED" -nt "$BACKUP" ; then
+		status=0;
+	else
+		while true; do
+			echo "$MERGED seems unchanged."
+			printf "Was the merge successful? [y/n] "
+			read answer < /dev/tty
+			case "$answer" in
+			y*|Y*) status=0; break ;;
+			n*|N*) status=1; break ;;
+			esac
+		done
+	fi
 }
 
 checkout_staged_file () {
-    tmpfile=$(expr "$(git checkout-index --temp --stage="$1" "$2")" : '\([^	]*\)	')
+	checkouttmp=$(git checkout-index --temp --stage="$1" "$2")
+	tmpfile=$(expr "$checkouttmp" : '\([^	]*\)	')
 
-    if test $? -eq 0 -a -n "$tmpfile" ; then
-	mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
-    fi
+	if test $? -eq 0 -a -n "$tmpfile" ; then
+		mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
+	fi
 }
 
 merge_file () {
-    MERGED="$1"
+	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 "$MERGED: file does not need merging"
+	f=`git ls-files -u -- "$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
-	return 1
-    fi
-
-    ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
-    BACKUP="./$MERGED.BACKUP.$ext"
-    LOCAL="./$MERGED.LOCAL.$ext"
-    REMOTE="./$MERGED.REMOTE.$ext"
-    BASE="./$MERGED.BASE.$ext"
 
-    mv -- "$MERGED" "$BACKUP"
-    cp -- "$BACKUP" "$MERGED"
-
-    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;}'`
+	ext="$$$(expr "$MERGED" : '.*\(\.[^/]*\)$')"
+	BACKUP="./$MERGED.BACKUP.$ext"
+	LOCAL="./$MERGED.LOCAL.$ext"
+	REMOTE="./$MERGED.REMOTE.$ext"
+	BASE="./$MERGED.BASE.$ext"
+
+	mv -- "$MERGED" "$BACKUP"
+	cp -- "$BACKUP" "$MERGED"
+
+	base_mode=`git ls-files -u -- "$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 $1;}'`
+
+	base_present   && checkout_staged_file 1 "$MERGED" "$BASE"
+	local_present  && checkout_staged_file 2 "$MERGED" "$LOCAL"
+	remote_present && checkout_staged_file 3 "$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
 
-    base_present   && checkout_staged_file 1 "$MERGED" "$BASE"
-    local_present  && checkout_staged_file 2 "$MERGED" "$LOCAL"
-    remote_present && checkout_staged_file 3 "$MERGED" "$REMOTE"
+	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
 
-    if test -z "$local_mode" -o -z "$remote_mode"; then
-	echo "Deleted merge conflict for '$MERGED':"
+	echo "Normal merge conflict for '$MERGED':"
 	describe_file "$local_mode" "local" "$LOCAL"
 	describe_file "$remote_mode" "remote" "$REMOTE"
-	resolve_deleted_merge
-	return
-    fi
+	if "$prompt" = true; then
+		printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
+		read ans
+	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
-    fi
-
-    case "$merge_tool" in
+	case "$merge_tool" in
 	kdiff3)
-	    if base_present ; then
-		("$merge_tool_path" --auto --L1 "$MERGED (Base)" --L2 "$MERGED (Local)" --L3 "$MERGED (Remote)" \
-		    -o "$MERGED" "$BASE" "$LOCAL" "$REMOTE" > /dev/null 2>&1)
-	    else
-		("$merge_tool_path" --auto --L1 "$MERGED (Local)" --L2 "$MERGED (Remote)" \
-		    -o "$MERGED" "$LOCAL" "$REMOTE" > /dev/null 2>&1)
-	    fi
-	    status=$?
-	    ;;
+		if base_present ; then
+			("$merge_tool_path" --auto \
+				--L1 "$MERGED (Base)" \
+				--L2 "$MERGED (Local)" \
+				--L3 "$MERGED (Remote)" \
+				-o "$MERGED" "$BASE" "$LOCAL" "$REMOTE" \
+			 > /dev/null 2>&1)
+		else
+			("$merge_tool_path" --auto \
+				--L1 "$MERGED (Local)" \
+				--L2 "$MERGED (Remote)" \
+				-o "$MERGED" "$LOCAL" "$REMOTE" \
+			 > /dev/null 2>&1)
+		fi
+		status=$?
+		;;
 	tkdiff)
-	    if base_present ; then
-		"$merge_tool_path" -a "$BASE" -o "$MERGED" "$LOCAL" "$REMOTE"
-	    else
-		"$merge_tool_path" -o "$MERGED" "$LOCAL" "$REMOTE"
-	    fi
-	    status=$?
-	    ;;
+		if base_present ; then
+			"$merge_tool_path" -a "$BASE" -o "$MERGED" "$LOCAL" "$REMOTE"
+		else
+			"$merge_tool_path" -o "$MERGED" "$LOCAL" "$REMOTE"
+		fi
+		status=$?
+		;;
 	meld)
-	    touch "$BACKUP"
-	    "$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"
-	    check_unchanged
-	    ;;
+		touch "$BACKUP"
+		"$merge_tool_path" "$LOCAL" "$MERGED" "$REMOTE"
+		check_unchanged
+		;;
 	vimdiff)
-	    touch "$BACKUP"
-	    "$merge_tool_path" -c "wincmd l" "$LOCAL" "$MERGED" "$REMOTE"
-	    check_unchanged
-	    ;;
+		touch "$BACKUP"
+		"$merge_tool_path" -c "wincmd l" "$LOCAL" "$MERGED" "$REMOTE"
+		check_unchanged
+		;;
 	gvimdiff)
-	    touch "$BACKUP"
-	    "$merge_tool_path" -c "wincmd l" -f "$LOCAL" "$MERGED" "$REMOTE"
-	    check_unchanged
-	    ;;
+		touch "$BACKUP"
+		"$merge_tool_path" -c "wincmd l" -f "$LOCAL" "$MERGED" "$REMOTE"
+		check_unchanged
+		;;
 	xxdiff)
-	    touch "$BACKUP"
-	    if base_present ; then
-		"$merge_tool_path" -X --show-merged-pane \
-		    -R 'Accel.SaveAsMerged: "Ctrl-S"' \
-		    -R 'Accel.Search: "Ctrl+F"' \
-		    -R 'Accel.SearchForward: "Ctrl-G"' \
-		    --merged-file "$MERGED" "$LOCAL" "$BASE" "$REMOTE"
-	    else
-		"$merge_tool_path" -X --show-merged-pane \
-		    -R 'Accel.SaveAsMerged: "Ctrl-S"' \
-		    -R 'Accel.Search: "Ctrl+F"' \
-		    -R 'Accel.SearchForward: "Ctrl-G"' \
-		    --merged-file "$MERGED" "$LOCAL" "$REMOTE"
-	    fi
-	    check_unchanged
-	    ;;
+		touch "$BACKUP"
+		if base_present ; then
+			"$merge_tool_path" -X --show-merged-pane \
+				-R 'Accel.SaveAsMerged: "Ctrl-S"' \
+				-R 'Accel.Search: "Ctrl+F"' \
+				-R 'Accel.SearchForward: "Ctrl-G"' \
+				--merged-file "$MERGED" "$LOCAL" "$BASE" "$REMOTE"
+		else
+			"$merge_tool_path" -X --show-merged-pane \
+				-R 'Accel.SaveAsMerged: "Ctrl-S"' \
+				-R 'Accel.Search: "Ctrl+F"' \
+				-R 'Accel.SearchForward: "Ctrl-G"' \
+				--merged-file "$MERGED" "$LOCAL" "$REMOTE"
+		fi
+		check_unchanged
+		;;
 	opendiff)
-	    touch "$BACKUP"
-	    if base_present; then
-		"$merge_tool_path" "$LOCAL" "$REMOTE" -ancestor "$BASE" -merge "$MERGED" | cat
-	    else
-		"$merge_tool_path" "$LOCAL" "$REMOTE" -merge "$MERGED" | cat
-	    fi
-	    check_unchanged
-	    ;;
+		touch "$BACKUP"
+		if base_present; then
+			"$merge_tool_path" "$LOCAL" "$REMOTE" \
+				-ancestor "$BASE" -merge "$MERGED" | cat
+		else
+			"$merge_tool_path" "$LOCAL" "$REMOTE" \
+				-merge "$MERGED" | cat
+		fi
+		check_unchanged
+		;;
 	ecmerge)
-	    touch "$BACKUP"
-	    if base_present; then
-		"$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" --default --mode=merge3 --to="$MERGED"
-	    else
-		"$merge_tool_path" "$LOCAL" "$REMOTE" --default --mode=merge2 --to="$MERGED"
-	    fi
-	    check_unchanged
-	    ;;
+		touch "$BACKUP"
+		if base_present; then
+			"$merge_tool_path" "$BASE" "$LOCAL" "$REMOTE" \
+				--default --mode=merge3 --to="$MERGED"
+		else
+			"$merge_tool_path" "$LOCAL" "$REMOTE" \
+				--default --mode=merge2 --to="$MERGED"
+		fi
+		check_unchanged
+		;;
 	emerge)
-	    if base_present ; then
-		"$merge_tool_path" -f emerge-files-with-ancestor-command "$LOCAL" "$REMOTE" "$BASE" "$(basename "$MERGED")"
-	    else
-		"$merge_tool_path" -f emerge-files-command "$LOCAL" "$REMOTE" "$(basename "$MERGED")"
-	    fi
-	    status=$?
-	    ;;
-	*)
-	    if test -n "$merge_tool_cmd"; then
-		if test "$merge_tool_trust_exit_code" = "false"; then
-		    touch "$BACKUP"
-		    ( eval $merge_tool_cmd )
-		    check_unchanged
+		if base_present ; then
+			"$merge_tool_path" -f emerge-files-with-ancestor-command \
+				"$LOCAL" "$REMOTE" "$BASE" "$(basename "$MERGED")"
 		else
-		    ( eval $merge_tool_cmd )
-		    status=$?
+			"$merge_tool_path" -f emerge-files-command \
+				"$LOCAL" "$REMOTE" "$(basename "$MERGED")"
 		fi
-	    fi
-	    ;;
-    esac
-    if test "$status" -ne 0; then
-	echo "merge of $MERGED failed" 1>&2
-	mv -- "$BACKUP" "$MERGED"
-
-	if test "$merge_keep_temporaries" = "false"; then
-	    cleanup_temp_files
-	fi
+		status=$?
+		;;
+	*)
+		if test -n "$merge_tool_cmd"; then
+			if test "$merge_tool_trust_exit_code" = "false"; then
+				touch "$BACKUP"
+				( eval $merge_tool_cmd )
+				check_unchanged
+			else
+				( eval $merge_tool_cmd )
+				status=$?
+			fi
+		fi
+		;;
+	esac
+	if test "$status" -ne 0; then
+		echo "merge of $MERGED failed" 1>&2
+		mv -- "$BACKUP" "$MERGED"
 
-	return 1
-    fi
+		if test "$merge_keep_temporaries" = "false"; then
+			cleanup_temp_files
+		fi
 
-    if test "$merge_keep_backup" = "true"; then
-	mv -- "$BACKUP" "$MERGED.orig"
-    else
-	rm -- "$BACKUP"
-    fi
+		return 1
+	fi
+
+	if test "$merge_keep_backup" = "true"; then
+		mv -- "$BACKUP" "$MERGED.orig"
+	else
+		rm -- "$BACKUP"
+	fi
 
-    git add -- "$MERGED"
-    cleanup_temp_files
-    return 0
+	git add -- "$MERGED"
+	cleanup_temp_files
+	return 0
 }
 
 prompt=$(git config --bool mergetool.prompt || echo true)
 
 while test $# != 0
 do
-    case "$1" in
+	case "$1" in
 	-t|--tool*)
-	    case "$#,$1" in
+		case "$#,$1" in
 		*,*=*)
-		    merge_tool=`expr "z$1" : 'z-[^=]*=\(.*\)'`
-		    ;;
+			merge_tool=`expr "z$1" : 'z-[^=]*=\(.*\)'`
+			;;
 		1,*)
-		    usage ;;
+			usage ;;
 		*)
-		    merge_tool="$2"
-		    shift ;;
-	    esac
-	    ;;
+			merge_tool="$2"
+			shift ;;
+		esac
+		;;
 	-y|--no-prompt)
-	    prompt=false
-	    ;;
+		prompt=false
+		;;
 	--prompt)
-	    prompt=true
-	    ;;
+		prompt=true
+		;;
 	--)
-	    shift
-	    break
-	    ;;
+		shift
+		break
+		;;
 	-*)
-	    usage
-	    ;;
+		usage
+		;;
 	*)
-	    break
-	    ;;
-    esac
-    shift
+		break
+		;;
+	esac
+	shift
 done
 
 valid_custom_tool()
 {
-    merge_tool_cmd="$(git config mergetool.$1.cmd)"
-    test -n "$merge_tool_cmd"
+	merge_tool_cmd="$(git config mergetool.$1.cmd)"
+	test -n "$merge_tool_cmd"
 }
 
 valid_tool() {
 	case "$1" in
-		kdiff3 | tkdiff | xxdiff | meld | opendiff | emerge | vimdiff | gvimdiff | ecmerge)
+		kdiff3 | tkdiff | xxdiff | meld | opendiff | \
+		emerge | vimdiff | gvimdiff | ecmerge)
 			;; # happy
 		*)
 			if ! valid_custom_tool "$1"; then
@@ -370,117 +385,116 @@ init_merge_tool_path() {
 }
 
 prompt_after_failed_merge() {
-    while true; do
-	printf "Continue merging other unresolved paths (y/n) ? "
-	read ans
-	case "$ans" in
-
-	    [yY]*)
-		return 0
-		;;
+	while true; do
+		printf "Continue merging other unresolved paths (y/n) ? "
+		read ans
+		case "$ans" in
+		[yY]*)
+			return 0
+			;;
 
-	    [nN]*)
-		return 1
-		;;
-	esac
-    done
+		[nN]*)
+			return 1
+			;;
+		esac
+	done
 }
 
 if test -z "$merge_tool"; then
-    merge_tool=`git config merge.tool`
-    if test -n "$merge_tool" && ! valid_tool "$merge_tool"; then
-	    echo >&2 "git config option merge.tool set to unknown tool: $merge_tool"
-	    echo >&2 "Resetting to default..."
-	    unset merge_tool
-    fi
+	merge_tool=`git config merge.tool`
+	if test -n "$merge_tool" && ! valid_tool "$merge_tool"; then
+		echo >&2 "git config option merge.tool set to unknown tool:" "$merge_tool"
+		echo >&2 "Resetting to default..."
+		unset merge_tool
+	fi
 fi
 
 if test -z "$merge_tool" ; then
-    if test -n "$DISPLAY"; then
-        if test -n "$GNOME_DESKTOP_SESSION_ID" ; then
-            merge_tool_candidates="meld kdiff3 tkdiff xxdiff gvimdiff"
-        else
-            merge_tool_candidates="kdiff3 tkdiff xxdiff meld gvimdiff"
-        fi
-    fi
-    if echo "${VISUAL:-$EDITOR}" | grep 'emacs' > /dev/null 2>&1; then
-        merge_tool_candidates="$merge_tool_candidates emerge opendiff vimdiff"
-    elif echo "${VISUAL:-$EDITOR}" | grep 'vim' > /dev/null 2>&1; then
-        merge_tool_candidates="$merge_tool_candidates vimdiff opendiff emerge"
-    else
-        merge_tool_candidates="$merge_tool_candidates opendiff emerge vimdiff"
-    fi
-    echo "merge tool candidates: $merge_tool_candidates"
-    for i in $merge_tool_candidates; do
-        init_merge_tool_path $i
-        if type "$merge_tool_path" > /dev/null 2>&1; then
-            merge_tool=$i
-            break
-        fi
-    done
-    if test -z "$merge_tool" ; then
-	echo "No known merge resolution program available."
-	exit 1
-    fi
+	if test -n "$DISPLAY"; then
+		if test -n "$GNOME_DESKTOP_SESSION_ID" ; then
+			merge_tool_candidates="meld kdiff3 tkdiff xxdiff gvimdiff"
+		else
+			merge_tool_candidates="kdiff3 tkdiff xxdiff meld gvimdiff"
+		fi
+	fi
+	if echo "${VISUAL:-$EDITOR}" | grep 'emacs' > /dev/null 2>&1; then
+		merge_tool_candidates="$merge_tool_candidates emerge opendiff vimdiff"
+	elif echo "${VISUAL:-$EDITOR}" | grep 'vim' > /dev/null 2>&1; then
+		merge_tool_candidates="$merge_tool_candidates vimdiff opendiff emerge"
+	else
+		merge_tool_candidates="$merge_tool_candidates opendiff emerge vimdiff"
+	fi
+	echo "merge tool candidates: $merge_tool_candidates"
+	for i in $merge_tool_candidates; do
+		init_merge_tool_path $i
+		if type "$merge_tool_path" > /dev/null 2>&1; then
+			merge_tool=$i
+			break
+		fi
+	done
+	if test -z "$merge_tool" ; then
+		echo "No known merge resolution program available."
+		exit 1
+	fi
 else
-    if ! valid_tool "$merge_tool"; then
-        echo >&2 "Unknown merge_tool $merge_tool"
-        exit 1
-    fi
+	if ! valid_tool "$merge_tool"; then
+		echo >&2 "Unknown merge_tool $merge_tool"
+		exit 1
+	fi
 
-    init_merge_tool_path "$merge_tool"
+	init_merge_tool_path "$merge_tool"
 
-    merge_keep_backup="$(git config --bool merge.keepBackup || echo true)"
-    merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
+	merge_keep_backup="$(git config --bool merge.keepBackup || echo true)"
+	merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
 
-    if test -z "$merge_tool_cmd" && ! type "$merge_tool_path" > /dev/null 2>&1; then
-        echo "The merge tool $merge_tool is not available as '$merge_tool_path'"
-        exit 1
-    fi
+	if test -z "$merge_tool_cmd" && ! type "$merge_tool_path" > /dev/null 2>&1; then
+		echo "The merge tool $merge_tool is not available as '$merge_tool_path'"
+		exit 1
+	fi
 
-    if ! test -z "$merge_tool_cmd"; then
-        merge_tool_trust_exit_code="$(git config --bool mergetool.$merge_tool.trustExitCode || echo false)"
-    fi
+	if ! test -z "$merge_tool_cmd"; then
+		merge_tool_trust_exit_code="$(git config --bool mergetool.$merge_tool.trustExitCode || echo false)"
+	fi
 fi
 
 last_status=0
 rollup_status=0
 
 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
-    echo Merging the files: "$files"
-    git ls-files -u |
-    sed -e 's/^[^	]*	//' |
-    sort -u |
-    while IFS= read i
-    do
-	if test $last_status -ne 0; then
-	    prompt_after_failed_merge < /dev/tty || exit 1
+	files=`git ls-files -u | sed -e 's/^[^	]*	//' | sort -u`
+	if test -z "$files" ; then
+		echo "No files need merging"
+		exit 0
 	fi
-	printf "\n"
-	merge_file "$i" < /dev/tty > /dev/tty
-	last_status=$?
-	if test $last_status -ne 0; then
-	    rollup_status=1
-	fi
-    done
+	echo Merging the files: "$files"
+	git ls-files -u |
+	sed -e 's/^[^	]*	//' |
+	sort -u |
+	while IFS= read i
+	do
+		if test $last_status -ne 0; then
+			prompt_after_failed_merge < /dev/tty || exit 1
+		fi
+		printf "\n"
+		merge_file "$i" < /dev/tty > /dev/tty
+		last_status=$?
+		if test $last_status -ne 0; then
+			rollup_status=1
+		fi
+	done
 else
-    while test $# -gt 0; do
-	if test $last_status -ne 0; then
-	    prompt_after_failed_merge || exit 1
-	fi
-	printf "\n"
-	merge_file "$1"
-	last_status=$?
-	if test $last_status -ne 0; then
-	    rollup_status=1
-	fi
-	shift
-    done
+	while test $# -gt 0; do
+		if test $last_status -ne 0; then
+			prompt_after_failed_merge || exit 1
+		fi
+		printf "\n"
+		merge_file "$1"
+		last_status=$?
+		if test $last_status -ne 0; then
+			rollup_status=1
+		fi
+		shift
+	done
 fi
 
 exit $rollup_status
-- 
1.6.1.3