The rough structure of run_rewrite_hook() comes from
run_receive_hook() in receive-pack.
We introduce a --no-post-rewrite option and use it to avoid the hook
when called from git-rebase -i 'edit'. The next patch will add full
support in git-rebase, and we only want to invoke the hook once.
Signed-off-by: Thomas Rast <trast@xxxxxxxxxxxxxxx>
---
builtin/commit.c | 39 +++++++++++++++++++++++++++++++
git-rebase--interactive.sh | 2 +-
t/t5407-post-rewrite-hook.sh | 52 ++++++++++++++++++++++++++++++++++++++++++
3 files changed, 92 insertions(+), 1 deletions(-)
create mode 100755 t/t5407-post-rewrite-hook.sh
diff --git a/builtin/commit.c b/builtin/commit.c
index f4c7344..0367412 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -66,6 +66,7 @@
static char *author_name, *author_email, *author_date;
static int all, edit_flag, also, interactive, only, amend, signoff;
static int quiet, verbose, no_verify, allow_empty, dry_run, renew_authorship;
+static int no_post_rewrite;
static char *untracked_files_arg, *force_date;
/*
* The default commit message cleanup mode will remove the lines
@@ -137,6 +138,7 @@ static int opt_parse_m(const struct option *opt, const char *arg, int unset)
OPT_BOOLEAN('z', "null", &null_termination,
"terminate entries with NUL"),
OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
+ OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, "bypass post-rewrite hook"),
{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, "mode", "show untracked files, optional modes: all, normal, no. (Default: all)", PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
/* end commit contents options */
@@ -1160,6 +1162,40 @@ static int git_commit_config(const char *k, const char *v, void *cb)
return git_status_config(k, v, s);
}
+static const char post_rewrite_hook[] = "hooks/post-rewrite";
+
+static int run_rewrite_hook(const unsigned char *oldsha1,
+ const unsigned char *newsha1)
+{
+ /* oldsha1 SP newsha1 LF NUL */
+ static char buf[2*40 + 3];
+ struct child_process proc;
+ const char *argv[3];
+ int code;
+ size_t n;
+
+ if (access(git_path(post_rewrite_hook), X_OK) < 0)
+ return 0;
+
+ argv[0] = git_path(post_rewrite_hook);
+ argv[1] = "amend";
+ argv[2] = NULL;
+
+ memset(&proc, 0, sizeof(proc));
+ proc.argv = argv;
+ proc.in = -1;
+ proc.stdout_to_stderr = 1;
+
+ code = start_command(&proc);
+ if (code)
+ return code;
+ n = snprintf(buf, sizeof(buf), "%s %s\n",
+ sha1_to_hex(oldsha1), sha1_to_hex(newsha1));
+ write_in_full(proc.in, buf, n);
+ close(proc.in);
+ return finish_command(&proc);
+}
+
int cmd_commit(int argc, const char **argv, const char *prefix)
{
struct strbuf sb = STRBUF_INIT;
@@ -1303,6 +1339,9 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
rerere(0);
run_hook(get_index_file(), "post-commit", NULL);
+ if (amend && !no_post_rewrite) {
+ run_rewrite_hook(head_sha1, commit_sha1);
+ }
if (!quiet)
print_summary(prefix, commit_sha1);
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh
index 92d19f5..c38efc4 100755
--- a/git-rebase--interactive.sh
+++ b/git-rebase--interactive.sh
@@ -436,7 +436,7 @@ do_next () {
mark_action_done
pick_one $sha1 ||
die_with_patch $sha1 "Could not apply $sha1... $rest"
- git commit --amend
+ git commit --amend --no-post-rewrite
;;
edit|e)
comment_for_reflog edit
diff --git a/t/t5407-post-rewrite-hook.sh b/t/t5407-post-rewrite-hook.sh
new file mode 100755
index 0000000..1020af9
--- /dev/null
+++ b/t/t5407-post-rewrite-hook.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+#
+# Copyright (c) 2010 Thomas Rast
+#
+
+test_description='Test the post-rewrite hook.'
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ test_commit A foo A &&
+ test_commit B foo B &&
+ test_commit C foo C &&
+ test_commit D foo D
+'
+
+mkdir .git/hooks
+
+cat >.git/hooks/post-rewrite <<EOF
+#!/bin/sh
+echo \$@ > "$TRASH_DIRECTORY"/post-rewrite.args
+cat > "$TRASH_DIRECTORY"/post-rewrite.data
+EOF
+chmod u+x .git/hooks/post-rewrite
+
+clear_hook_input () {
+ rm -f post-rewrite.args post-rewrite.data
+}
+
+verify_hook_input () {
+ test_cmp "$TRASH_DIRECTORY"/post-rewrite.args expected.args &&
+ test_cmp "$TRASH_DIRECTORY"/post-rewrite.data expected.data
+}
+
+test_expect_success 'git commit --amend' '
+ clear_hook_input &&
+ echo "D new message" > newmsg &&
+ oldsha=$(git rev-parse HEAD^0) &&
+ git commit -Fnewmsg --amend &&
+ echo amend > expected.args &&
+ echo $oldsha $(git rev-parse HEAD^0) > expected.data &&
+ verify_hook_input
+'
+
+test_expect_success 'git commit --amend --no-post-rewrite' '
+ clear_hook_input &&
+ echo "D new message again" > newmsg &&
+ git commit --no-post-rewrite -Fnewmsg --amend &&
+ test ! -f post-rewrite.args &&
+ test ! -f post-rewrite.data
+'
+
+test_done
--
1.7.0.2.417.gbc354
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