[PATCH 2/4] sequencer: add "--fast-forward" option to "git sequencer--helper"

[Christian Couder <chriscool@xxxxxxxxxxxxx>]

This new option uses the "do_fast_forward()" function to perform
a fast forward.

Signed-off-by: Christian Couder <chriscool@xxxxxxxxxxxxx>
---
 builtin-sequencer--helper.c |   16 ++++++++++++----
 1 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/builtin-sequencer--helper.c b/builtin-sequencer--helper.c
index 0cd7e98..bd72f65 100644
--- a/builtin-sequencer--helper.c
+++ b/builtin-sequencer--helper.c
@@ -19,6 +19,7 @@ static unsigned char head_sha1[20];
 static const char * const git_sequencer_helper_usage[] = {
 	"git sequencer--helper --make-patch <commit>",
 	"git sequencer--helper --reset-hard <commit> <reflog-msg> <verbosity>",
+	"git sequencer--helper --fast-forward <commit> <reflog-msg> <verbosity>",
 	NULL
 };
 
@@ -218,11 +219,14 @@ int cmd_sequencer__helper(int argc, const char **argv, const char *prefix)
 {
 	char *patch_commit = NULL;
 	char *reset_commit = NULL;
+	char *ff_commit = NULL;
 	struct option options[] = {
 		OPT_STRING(0, "make-patch", &patch_commit, "commit",
 			   "create a patch from commit"),
 		OPT_STRING(0, "reset-hard", &reset_commit, "commit",
 			   "reset to commit"),
+		OPT_STRING(0, "fast-forward", &ff_commit, "commit",
+			   "fast forward to commit"),
 		OPT_END()
 	};
 
@@ -239,15 +243,16 @@ int cmd_sequencer__helper(int argc, const char **argv, const char *prefix)
 		return 0;
 	}
 
-	if (reset_commit) {
+	if (ff_commit || reset_commit) {
 		unsigned char sha1[20];
+		char *commit = ff_commit ? ff_commit : reset_commit;
 
 		if (argc != 2)
 			usage_with_options(git_sequencer_helper_usage,
 					   options);
 
-		if (get_sha1(reset_commit, sha1)) {
-			error("Could not find '%s'", reset_commit);
+		if (get_sha1(commit, sha1)) {
+			error("Could not find '%s'", commit);
 			return 1;
 		}
 
@@ -258,7 +263,10 @@ int cmd_sequencer__helper(int argc, const char **argv, const char *prefix)
 			return 1;
 		}
 
-		return reset_almost_hard(sha1);
+		if (ff_commit)
+			return do_fast_forward(sha1);
+		else
+			return reset_almost_hard(sha1);
 	}
 
 	usage_with_options(git_sequencer_helper_usage, options);
-- 
1.6.4.209.g16b77


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