This patch moves the code of run_commit, up to writing the trees, editing
the message and running the commit-msg hook to prepare_log_message. It also
renames the latter to prepare_to_commit.
This simplifies a little the code for the next patch.
---
builtin-commit.c | 171 +++++++++++++++++++++++++++--------------------------
t/t7502-commit.sh | 28 +++++++++
2 files changed, 116 insertions(+), 83 deletions(-)
While not strictly necessary, I moved code that invokes pre-commit
too, because it seemed more logical. Both for pre-commit and
for the old prepare_log_message you have to call rollback_index_files
upon failure.
I added a testcase that the editor is invoked *after* checking
for incomplete merges.
diff --git a/builtin-commit.c b/builtin-commit.c
index 7d1059c..d8945ac 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -377,9 +377,17 @@ static int run_hook(const char *index_file, const char *name, ...)
return run_command(&hook);
}
+static int is_a_merge(const unsigned char *sha1)
+{
+ struct commit *commit = lookup_commit(sha1);
+ if (!commit || parse_commit(commit))
+ die("could not parse HEAD commit");
+ return !!(commit->parents && commit->parents->next);
+}
+
static const char sign_off_header[] = "Signed-off-by: ";
-static int prepare_log_message(const char *index_file, const char *prefix)
+static int prepare_to_commit(const char *index_file, const char *prefix)
{
struct stat statbuf;
int commitable, saved_color_setting;
@@ -387,6 +395,9 @@ static int prepare_log_message(const char *index_file, const char *prefix)
char *buffer;
FILE *fp;
+ if (!no_verify && run_hook(index_file, "pre-commit", NULL))
+ return 0;
+
strbuf_init(&sb, 0);
if (message.len) {
strbuf_addbuf(&sb, &message);
@@ -447,13 +458,38 @@ static int prepare_log_message(const char *index_file, const char *prefix)
strbuf_release(&sb);
- if (!use_editor) {
+ if (use_editor) {
+ if (in_merge)
+ fprintf(fp,
+ "#\n"
+ "# It looks like you may be committing a MERGE.\n"
+ "# If this is not correct, please remove the file\n"
+ "# %s\n"
+ "# and try again.\n"
+ "#\n",
+ git_path("MERGE_HEAD"));
+
+ fprintf(fp,
+ "\n"
+ "# Please enter the commit message for your changes.\n"
+ "# (Comment lines starting with '#' will ");
+ if (cleanup_mode == CLEANUP_ALL)
+ fprintf(fp, "not be included)\n");
+ else /* CLEANUP_SPACE, that is. */
+ fprintf(fp, "be kept.\n"
+ "# You can remove them yourself if you want to)\n");
+ if (only_include_assumed)
+ fprintf(fp, "# %s\n", only_include_assumed);
+
+ saved_color_setting = wt_status_use_color;
+ wt_status_use_color = 0;
+ commitable = run_status(fp, index_file, prefix, 1);
+ wt_status_use_color = saved_color_setting;
+ } else {
struct rev_info rev;
unsigned char sha1[20];
const char *parent = "HEAD";
- fclose(fp);
-
if (!active_nr && read_cache() < 0)
die("Cannot read index");
@@ -461,48 +497,56 @@ static int prepare_log_message(const char *index_file, const char *prefix)
parent = "HEAD^1";
if (get_sha1(parent, sha1))
- return !!active_nr;
+ commitable = !!active_nr;
+ else {
+ init_revisions(&rev, "");
+ rev.abbrev = 0;
+ setup_revisions(0, NULL, &rev, parent);
+ DIFF_OPT_SET(&rev.diffopt, QUIET);
+ DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
+ run_diff_index(&rev, 1 /* cached */);
+
+ commitable = !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
+ }
+ }
- init_revisions(&rev, "");
- rev.abbrev = 0;
- setup_revisions(0, NULL, &rev, parent);
- DIFF_OPT_SET(&rev.diffopt, QUIET);
- DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
- run_diff_index(&rev, 1 /* cached */);
+ fclose(fp);
+
+ if (!commitable && !in_merge && !allow_empty &&
+ !(amend && is_a_merge(head_sha1))) {
+ run_status(stdout, index_file, prefix, 0);
+ unlink(commit_editmsg);
+ return 0;
+ }
- return !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
+ /*
+ * Re-read the index as pre-commit hook could have updated it,
+ * and write it out as a tree. We must do this before we invoke
+ * the editor and after we invoke run_status above.
+ */
+ discard_cache();
+ read_cache_from(index_file);
+ if (!active_cache_tree)
+ active_cache_tree = cache_tree();
+ if (cache_tree_update(active_cache_tree,
+ active_cache, active_nr, 0, 0) < 0) {
+ error("Error building trees");
+ return 0;
}
- if (in_merge)
- fprintf(fp,
- "#\n"
- "# It looks like you may be committing a MERGE.\n"
- "# If this is not correct, please remove the file\n"
- "# %s\n"
- "# and try again.\n"
- "#\n",
- git_path("MERGE_HEAD"));
-
- fprintf(fp,
- "\n"
- "# Please enter the commit message for your changes.\n"
- "# (Comment lines starting with '#' will ");
- if (cleanup_mode == CLEANUP_ALL)
- fprintf(fp, "not be included)\n");
- else /* CLEANUP_SPACE, that is. */
- fprintf(fp, "be kept.\n"
- "# You can remove them yourself if you want to)\n");
- if (only_include_assumed)
- fprintf(fp, "# %s\n", only_include_assumed);
-
- saved_color_setting = wt_status_use_color;
- wt_status_use_color = 0;
- commitable = run_status(fp, index_file, prefix, 1);
- wt_status_use_color = saved_color_setting;
+ if (use_editor) {
+ char index[PATH_MAX];
+ const char *env[2] = { index, NULL };
+ snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
+ launch_editor(git_path(commit_editmsg), NULL, env);
+ }
- fclose(fp);
+ if (!no_verify &&
+ run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
+ return 0;
+ }
- return commitable;
+ return 1;
}
/*
@@ -761,14 +805,6 @@ int git_commit_config(const char *k, const char *v)
return git_status_config(k, v);
}
-static int is_a_merge(const unsigned char *sha1)
-{
- struct commit *commit = lookup_commit(sha1);
- if (!commit || parse_commit(commit))
- die("could not parse HEAD commit");
- return !!(commit->parents && commit->parents->next);
-}
-
static const char commit_utf8_warn[] =
"Warning: commit message does not conform to UTF-8.\n"
"You may want to amend it after fixing the message, or set the config\n"
@@ -800,34 +836,14 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
index_file = prepare_index(argc, argv, prefix);
- if (!no_verify && run_hook(index_file, "pre-commit", NULL)) {
- rollback_index_files();
- return 1;
- }
-
- if (!prepare_log_message(index_file, prefix) && !in_merge &&
- !allow_empty && !(amend && is_a_merge(head_sha1))) {
- run_status(stdout, index_file, prefix, 0);
+ /* Set up everything for writing the commit object. This includes
+ running hooks, writing the trees, and interacting with the user. */
+ if (!prepare_to_commit(index_file, prefix)) {
rollback_index_files();
- unlink(commit_editmsg);
return 1;
}
/*
- * Re-read the index as pre-commit hook could have updated it,
- * and write it out as a tree.
- */
- discard_cache();
- read_cache_from(index_file);
- if (!active_cache_tree)
- active_cache_tree = cache_tree();
- if (cache_tree_update(active_cache_tree,
- active_cache, active_nr, 0, 0) < 0) {
- rollback_index_files();
- die("Error building trees");
- }
-
- /*
* The commit object
*/
strbuf_init(&sb, 0);
@@ -878,19 +894,8 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
strbuf_addf(&sb, "encoding %s\n", git_commit_encoding);
strbuf_addch(&sb, '\n');
- /* Get the commit message and validate it */
+ /* Finally, get the commit message */
header_len = sb.len;
- if (use_editor) {
- char index[PATH_MAX];
- const char *env[2] = { index, NULL };
- snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
- launch_editor(git_path(commit_editmsg), NULL, env);
- }
- if (!no_verify &&
- run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
- rollback_index_files();
- exit(1);
- }
if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
rollback_index_files();
die("could not read commit message");
diff --git a/t/t7502-commit.sh b/t/t7502-commit.sh
index aaf497e..5ab8e23 100755
--- a/t/t7502-commit.sh
+++ b/t/t7502-commit.sh
@@ -154,4 +154,33 @@ test_expect_success 'cleanup commit messages (strip,-F,-e)' '
'
+pwd=`pwd`
+cat >> .git/FAKE_EDITOR << EOF
+#! /bin/sh
+echo editor started > "$pwd/.git/result"
+exit 0
+EOF
+chmod +x .git/FAKE_EDITOR
+
+test_expect_success 'do not fire editor in the presence of conflicts' '
+
+ git clean
+ echo f>g
+ git add g
+ git commit -myes
+ git branch second
+ echo master>g
+ echo g>h
+ git add g h
+ git commit -mmaster
+ git checkout second
+ echo second>g
+ git add g
+ git commit -msecond
+ git cherry-pick -n master
+ echo "editor not started" > .git/result
+ GIT_EDITOR=`pwd`/.git/FAKE_EDITOR git commit && exit 1 # should fail
+ test "`cat .git/result`" = "editor not started"
+'
+
test_done
--
1.5.3.4.910.gc5122-dirty
-
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