X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-rebase--interactive.sh;h=f28c3df204214f691de87cb48c513f1eb5d767e6;hb=562ca192f94496611583688beb3725603ce51f89;hp=ac4d559f07ed656ff08f75a00c028bb515f7a8af;hpb=8e4a91bd780b89c7337f281a8601f2e0cae108fc;p=git.git

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index ac4d559f0..f28c3df20 100755
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -17,8 +17,10 @@ USAGE='(--continue | --abort | --skip | [--preserve-merges] [--verbose]
 require_work_tree
 
 DOTEST="$GIT_DIR/.dotest-merge"
-TODO="$DOTEST"/todo
+TODO="$DOTEST"/git-rebase-todo
 DONE="$DOTEST"/done
+MSG="$DOTEST"/message
+SQUASH_MSG="$DOTEST"/message-squash
 REWRITTEN="$DOTEST"/rewritten
 PRESERVE_MERGES=
 STRATEGY=
@@ -31,6 +33,20 @@ warn () {
 	echo "$*" >&2
 }
 
+output () {
+	case "$VERBOSE" in
+	'')
+		"$@" > "$DOTEST"/output 2>&1
+		status=$?
+		test $status != 0 &&
+			cat "$DOTEST"/output
+		return $status
+	;;
+	*)
+		"$@"
+	esac
+}
+
 require_clean_work_tree () {
 	# test if working tree is dirty
 	git rev-parse --verify HEAD > /dev/null &&
@@ -54,11 +70,15 @@ mark_action_done () {
 	sed -e 1q < "$TODO" >> "$DONE"
 	sed -e 1d < "$TODO" >> "$TODO".new
 	mv -f "$TODO".new "$TODO"
+	count=$(($(wc -l < "$DONE")))
+	total=$(($count+$(wc -l < "$TODO")))
+	printf "Rebasing (%d/%d)\r" $count $total
+	test -z "$VERBOSE" || echo
 }
 
 make_patch () {
 	parent_sha1=$(git rev-parse --verify "$1"^ 2> /dev/null)
-	git diff "$parent_sha1".."$1" > "$DOTEST"/patch
+	git diff-tree -p "$parent_sha1".."$1" > "$DOTEST"/patch
 }
 
 die_with_patch () {
@@ -76,18 +96,20 @@ die_abort () {
 }
 
 pick_one () {
-	case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
-	git rev-parse --verify $sha1 || die "Invalid commit name: $sha1"
+	no_ff=
+	case "$1" in -n) sha1=$2; no_ff=t ;; *) sha1=$1 ;; esac
+	output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1"
 	test -d "$REWRITTEN" &&
 		pick_one_preserving_merges "$@" && return
 	parent_sha1=$(git rev-parse --verify $sha1^ 2>/dev/null)
 	current_sha1=$(git rev-parse --verify HEAD)
-	if [ $current_sha1 = $parent_sha1 ]; then
-		git reset --hard $sha1
+	if test $no_ff$current_sha1 = $parent_sha1; then
+		output git reset --hard $sha1
+		test "a$1" = a-n && output git reset --soft $current_sha1
 		sha1=$(git rev-parse --short $sha1)
-		warn Fast forward to $sha1
+		output warn Fast forward to $sha1
 	else
-		git cherry-pick $STRATEGY "$@"
+		output git cherry-pick "$@"
 	fi
 }
 
@@ -95,7 +117,7 @@ pick_one_preserving_merges () {
 	case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac
 	sha1=$(git rev-parse $sha1)
 
-	if [ -f "$DOTEST"/current-commit ]
+	if test -f "$DOTEST"/current-commit
 	then
 		current_commit=$(cat "$DOTEST"/current-commit) &&
 		git rev-parse HEAD > "$REWRITTEN"/$current_commit &&
@@ -109,7 +131,7 @@ pick_one_preserving_merges () {
 	new_parents=
 	for p in $(git rev-list --parents -1 $sha1 | cut -d\  -f2-)
 	do
-		if [ -f "$REWRITTEN"/$p ]
+		if test -f "$REWRITTEN"/$p
 		then
 			preserve=f
 			new_p=$(cat "$REWRITTEN"/$p)
@@ -124,7 +146,7 @@ pick_one_preserving_merges () {
 	done
 	case $fast_forward in
 	t)
-		echo "Fast forward to $sha1"
+		output warn "Fast forward to $sha1"
 		test $preserve=f && echo $sha1 > "$REWRITTEN"/$sha1
 		;;
 	f)
@@ -132,7 +154,7 @@ pick_one_preserving_merges () {
 
 		first_parent=$(expr "$new_parents" : " \([^ ]*\)")
 		# detach HEAD to current parent
-		git checkout $first_parent 2> /dev/null ||
+		output git checkout $first_parent 2> /dev/null ||
 			die "Cannot move HEAD to $first_parent"
 
 		echo $sha1 > "$DOTEST"/current-commit
@@ -143,20 +165,54 @@ pick_one_preserving_merges () {
 			eval "$author_script"
 			msg="$(git cat-file commit $sha1 | \
 				sed -e '1,/^$/d' -e "s/[\"\\]/\\\\&/g")"
+			# No point in merging the first parent, that's HEAD
+			new_parents=${new_parents# $first_parent}
 			# NEEDSWORK: give rerere a chance
-			if ! git merge $STRATEGY -m "$msg" $new_parents
+			if ! output git merge $STRATEGY -m "$msg" $new_parents
 			then
 				echo "$msg" > "$GIT_DIR"/MERGE_MSG
 				die Error redoing merge $sha1
 			fi
 			;;
 		*)
-			git cherry-pick $STRATEGY "$@" ||
+			output git cherry-pick "$@" ||
 				die_with_patch $sha1 "Could not pick $sha1"
 		esac
 	esac
 }
 
+nth_string () {
+	case "$1" in
+	*1[0-9]|*[04-9]) echo "$1"th;;
+	*1) echo "$1"st;;
+	*2) echo "$1"nd;;
+	*3) echo "$1"rd;;
+	esac
+}
+
+make_squash_message () {
+	if test -f "$SQUASH_MSG"; then
+		COUNT=$(($(sed -n "s/^# This is [^0-9]*\([1-9][0-9]*\).*/\1/p" \
+			< "$SQUASH_MSG" | tail -n 1)+1))
+		echo "# This is a combination of $COUNT commits."
+		sed -n "2,\$p" < "$SQUASH_MSG"
+	else
+		COUNT=2
+		echo "# This is a combination of two commits."
+		echo "# The first commit's message is:"
+		echo
+		git cat-file commit HEAD | sed -e '1,/^$/d'
+		echo
+	fi
+	echo "# This is the $(nth_string $COUNT) commit message:"
+	echo
+	git cat-file commit $1 | sed -e '1,/^$/d'
+}
+
+peek_next_command () {
+	sed -n "1s/ .*$//p" < "$TODO"
+}
+
 do_next () {
 	test -f "$DOTEST"/message && rm "$DOTEST"/message
 	test -f "$DOTEST"/author-script && rm "$DOTEST"/author-script
@@ -193,26 +249,30 @@ do_next () {
 			die "Cannot 'squash' without a previous commit"
 
 		mark_action_done
+		make_squash_message $sha1 > "$MSG"
+		case "$(peek_next_command)" in
+		squash)
+			EDIT_COMMIT=
+			USE_OUTPUT=output
+			cp "$MSG" "$SQUASH_MSG"
+		;;
+		*)
+			EDIT_COMMIT=-e
+			USE_OUTPUT=
+			test -f "$SQUASH_MSG" && rm "$SQUASH_MSG"
+		esac
+
 		failed=f
+		author_script=$(get_author_ident_from_commit HEAD)
+		output git reset --soft HEAD^
 		pick_one -n $sha1 || failed=t
-		MSG="$DOTEST"/message
-		echo "# This is a combination of two commits." > "$MSG"
-		echo "# The first commit's message is:" >> "$MSG"
-		echo >> "$MSG"
-		git cat-file commit HEAD | sed -e '1,/^$/d' >> "$MSG"
-		echo >> "$MSG"
-		echo "# And this is the 2nd commit message:" >> "$MSG"
-		echo >> "$MSG"
-		git cat-file commit $sha1 | sed -e '1,/^$/d' >> "$MSG"
-		git reset --soft HEAD^
-		author_script=$(get_author_ident_from_commit $sha1)
 		echo "$author_script" > "$DOTEST"/author-script
 		case $failed in
 		f)
 			# This is like --amend, but with a different message
 			eval "$author_script"
 			export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
-			git commit -F "$MSG" -e
+			$USE_OUTPUT git commit -F "$MSG" $EDIT_COMMIT
 			;;
 		t)
 			cp "$MSG" "$GIT_DIR"/MERGE_MSG
@@ -231,7 +291,7 @@ do_next () {
 	HEADNAME=$(cat "$DOTEST"/head-name) &&
 	OLDHEAD=$(cat "$DOTEST"/head) &&
 	SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) &&
-	if [ -d "$REWRITTEN" ]
+	if test -d "$REWRITTEN"
 	then
 		test -f "$DOTEST"/current-commit &&
 			current_commit=$(cat "$DOTEST"/current-commit) &&
@@ -244,7 +304,7 @@ do_next () {
 	git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD &&
 	git symbolic-ref HEAD $HEADNAME && {
 		test ! -f "$DOTEST"/verbose ||
-			git diff --stat $(cat "$DOTEST"/head)..HEAD
+			git diff-tree --stat $(cat "$DOTEST"/head)..HEAD
 	} &&
 	rm -rf "$DOTEST" &&
 	warn "Successfully rebased and updated $HEADNAME."
@@ -259,7 +319,7 @@ do_rest () {
 	done
 }
 
-while case $# in 0) break ;; esac
+while test $# != 0
 do
 	case "$1" in
 	--continue)
@@ -287,7 +347,7 @@ do
 		HEADNAME=$(cat "$DOTEST"/head-name)
 		HEAD=$(cat "$DOTEST"/head)
 		git symbolic-ref HEAD $HEADNAME &&
-		git reset --hard $HEAD &&
+		output git reset --hard $HEAD &&
 		rm -rf "$DOTEST"
 		exit
 		;;
@@ -296,10 +356,9 @@ do
 
 		test -d "$DOTEST" || die "No interactive rebase running"
 
-		git reset --hard && do_rest
+		output git reset --hard && do_rest
 		;;
 	-s|--strategy)
-		shift
 		case "$#,$1" in
 		*,*=*)
 			STRATEGY="-s `expr "z$1" : 'z-[^=]*=\(.*\)'`" ;;
@@ -348,11 +407,12 @@ do
 
 		require_clean_work_tree
 
-		if [ ! -z "$2"]
+		mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
+		if test ! -z "$2"
 		then
-			git show-ref --verify --quiet "refs/heads/$2" ||
+			output git show-ref --verify --quiet "refs/heads/$2" ||
 				die "Invalid branchname: $2"
-			git checkout "$2" ||
+			output git checkout "$2" ||
 				die "Could not checkout $2"
 		fi
 
@@ -361,7 +421,6 @@ do
 
 		test -z "$ONTO" && ONTO=$UPSTREAM
 
-		mkdir "$DOTEST" || die "Could not create temporary $DOTEST"
 		: > "$DOTEST"/interactive || die "Could not mark as interactive"
 		git symbolic-ref HEAD > "$DOTEST"/head-name ||
 			die "Could not get HEAD"
@@ -371,7 +430,7 @@ do
 		echo $ONTO > "$DOTEST"/onto
 		test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy
 		test t = "$VERBOSE" && : > "$DOTEST"/verbose
-		if [ t = "$PRESERVE_MERGES" ]
+		if test t = "$PRESERVE_MERGES"
 		then
 			# $REWRITTEN contains files for each commit that is
 			# reachable by at least one merge base of $HEAD and
@@ -401,22 +460,26 @@ do
 #  pick = use commit
 #  edit = use commit, but stop for amending
 #  squash = use commit, but meld into previous commit
+#
+# If you remove a line here THAT COMMIT WILL BE LOST.
+#
 EOF
 		git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \
-			--abbrev=7 --reverse $UPSTREAM..$HEAD | \
-			sed "s/^/pick /" >> "$TODO"
+			--abbrev=7 --reverse --left-right --cherry-pick \
+			$UPSTREAM...$HEAD | \
+			sed -n "s/^>/pick /p" >> "$TODO"
 
 		test -z "$(grep -ve '^$' -e '^#' < $TODO)" &&
 			die_abort "Nothing to do"
 
 		cp "$TODO" "$TODO".backup
-		${VISUAL:-${EDITOR:-vi}} "$TODO" ||
+		git_editor "$TODO" ||
 			die "Could not execute editor"
 
 		test -z "$(grep -ve '^$' -e '^#' < $TODO)" &&
 			die_abort "Nothing to do"
 
-		git checkout $ONTO && do_rest
+		output git checkout $ONTO && do_rest
 	esac
 	shift
 done