rebase -i: implement the main part of interactive rebase as a builtin

This rewrites the part of interactive rebase which initializes the
basic state, make the script and complete the action, as a buitin, named
git-rebase--interactive2 for now.  Others modes (`--continue`,
`--edit-todo`, etc.) will be rewritten in the next commit.

git-rebase--interactive.sh is modified to call git-rebase--interactive2
instead of git-rebase--helper.

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 22 insertions, 19 deletions

diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index 761be95ed1..e87d708a4d 100644
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -58,24 +58,27 @@ git_rebase__interactive () {
 		return 0
 	fi
 
-	git rebase--helper --prepare-branch "$switch_to" ${verbose:+--verbose}
+	test -n "$keep_empty" && keep_empty="--keep-empty"
+	test -n "$rebase_merges" && rebase_merges="--rebase-merges"
+	test -n "$rebase_cousins" && rebase_cousins="--rebase-cousins"
+	test -n "$autosquash" && autosquash="--autosquash"
+	test -n "$verbose" && verbose="--verbose"
+	test -n "$force_rebase" && force_rebase="--no-ff"
+	test -n "$restrict_revisions" && restrict_revisions="--restrict-revisions=^$restrict_revisions"
+	test -n "$upstream" && upstream="--upstream=$upstream"
+	test -n "$onto" && onto="--onto=$onto"
+	test -n "$squash_onto" && squash_onto="--squash-onto=$squash_onto"
+	test -n "$onto_name" && onto_name="--onto-name=$onto_name"
+	test -n "$head_name" && head_name="--head-name=$head_name"
+	test -n "$strategy" && strategy="--strategy=$strategy"
+	test -n "$strategy_opts" && strategy_opts="--strategy-opts=$strategy_opts"
+	test -n "$switch_to" && switch_to="--switch-to=$switch_to"
+	test -n "$cmd" && cmd="--cmd=$cmd"
 
-	git rebase--helper --init-basic-state ${upstream:+--upstream "$upstream"} \
-		${onto:+--onto "$onto"} ${head_name:+--head-name "$head_name"} \
-		${verbose:+--verbose} ${strategy:+--strategy "$strategy"} \
-		${strategy_opts:+--strategy-opts="$strategy_opts"} \
-		"$allow_rerere_autoupdate" "$gpg_sign_opt" "$signoff" || exit
-
-	git rebase--helper --make-script ${keep_empty:+--keep-empty} \
-		${rebase_merges:+--rebase-merges} \
-		${rebase_cousins:+--rebase-cousins} \
-		${upstream:+--upstream "$upstream"} ${onto:+--onto "$onto"} \
-		${squash_onto:+--squash-onto "$squash_onto"} \
-		${restrict_revision:+--restrict-revision ^"$restrict_revision"} >"$todo" ||
-	die "$(gettext "Could not generate todo list")"
-
-	exec git rebase--helper --complete-action "$onto_name" "$cmd" \
-		$allow_empty_message ${autosquash:+--autosquash} ${verbose:+--verbose} \
-		${keep_empty:+--keep-empty} ${force_rebase:+--no-ff} \
-		${upstream:+--upstream "$upstream"} ${onto:+--onto "$onto"}
+	exec git rebase--interactive2 "$keep_empty" "$rebase_merges" "$rebase_cousins" \
+		"$upstream" "$onto" "$squash_onto" "$restrict_revision" \
+		"$allow_empty_message" "$autosquash" "$verbose" \
+		"$force_rebase" "$onto_name" "$head_name" "$strategy" \
+		"$strategy_opts" "$cmd" "$switch_to" \
+		"$allow_rerere_autoupdate" "$gpg_sign_opt" "$signoff"
 }