#include "cache.h"
#include "cache-tree.h"
+#include "color.h"
#include "dir.h"
#include "builtin.h"
#include "diff.h"
return s.commitable;
}
+static int run_hook(const char *index_file, const char *name, ...)
+{
+ struct child_process hook;
+ const char *argv[10], *env[2];
+ char index[PATH_MAX];
+ va_list args;
+ int i;
+
+ va_start(args, name);
+ argv[0] = git_path("hooks/%s", name);
+ i = 0;
+ do {
+ if (++i >= ARRAY_SIZE(argv))
+ die ("run_hook(): too many arguments");
+ argv[i] = va_arg(args, const char *);
+ } while (argv[i]);
+ va_end(args);
+
+ snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
+ env[0] = index;
+ env[1] = NULL;
+
+ if (access(argv[0], X_OK) < 0)
+ return 0;
+
+ memset(&hook, 0, sizeof(hook));
+ hook.argv = argv;
+ hook.no_stdin = 1;
+ hook.stdout_to_stderr = 1;
+ hook.env = env;
+
+ 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;
struct strbuf sb;
char *buffer;
FILE *fp;
+ const char *hook_arg1 = NULL;
+ const char *hook_arg2 = NULL;
+
+ if (!no_verify && run_hook(index_file, "pre-commit", NULL))
+ return 0;
strbuf_init(&sb, 0);
if (message.len) {
strbuf_addbuf(&sb, &message);
+ hook_arg1 = "message";
} else if (logfile && !strcmp(logfile, "-")) {
if (isatty(0))
fprintf(stderr, "(reading log message from standard input)\n");
if (strbuf_read(&sb, 0, 0) < 0)
die("could not read log from standard input");
+ hook_arg1 = "message";
} else if (logfile) {
if (strbuf_read_file(&sb, logfile, 0) < 0)
die("could not read log file '%s': %s",
logfile, strerror(errno));
+ hook_arg1 = "message";
} else if (use_message) {
buffer = strstr(use_message_buffer, "\n\n");
if (!buffer || buffer[2] == '\0')
die("commit has empty message");
strbuf_add(&sb, buffer + 2, strlen(buffer + 2));
+ hook_arg1 = "commit";
+ hook_arg2 = use_message;
} else if (!stat(git_path("MERGE_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("MERGE_MSG"), 0) < 0)
die("could not read MERGE_MSG: %s", strerror(errno));
+ hook_arg1 = "merge";
} else if (!stat(git_path("SQUASH_MSG"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("SQUASH_MSG"), 0) < 0)
die("could not read SQUASH_MSG: %s", strerror(errno));
+ hook_arg1 = "squash";
} else if (template_file && !stat(template_file, &statbuf)) {
if (strbuf_read_file(&sb, template_file, 0) < 0)
die("could not read %s: %s",
template_file, strerror(errno));
+ hook_arg1 = "template";
}
+ /*
+ * This final case does not modify the template message,
+ * it just sets the argument to the prepare-commit-msg hook.
+ */
+ else if (in_merge)
+ hook_arg1 = "merge";
+
fp = fopen(git_path(commit_editmsg), "w");
if (fp == NULL)
die("could not open %s", git_path(commit_editmsg));
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");
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);
- return !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
+ if (!commitable && !in_merge && !allow_empty &&
+ !(amend && is_a_merge(head_sha1))) {
+ run_status(stdout, index_file, prefix, 0);
+ unlink(commit_editmsg);
+ 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;
+ /*
+ * 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;
+ }
- fclose(fp);
+ if (run_hook(index_file, "prepare-commit-msg",
+ git_path(commit_editmsg), hook_arg1, hook_arg2, NULL))
+ return 0;
+
+ 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);
+ }
- return commitable;
+ if (!no_verify &&
+ run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
+ return 0;
+ }
+
+ return 1;
}
/*
use_editor = 0;
if (edit_flag)
use_editor = 1;
+ if (!use_editor)
+ setenv("GIT_EDITOR", ":", 1);
if (get_sha1("HEAD", head_sha1))
initial_commit = 1;
git_config(git_status_config);
+ if (wt_status_use_color == -1)
+ wt_status_use_color = git_use_color_default;
+
argc = parse_and_validate_options(argc, argv, builtin_status_usage);
index_file = prepare_index(argc, argv, prefix);
return commitable ? 0 : 1;
}
-static int run_hook(const char *index_file, const char *name, const char *arg)
-{
- struct child_process hook;
- const char *argv[3], *env[2];
- char index[PATH_MAX];
-
- argv[0] = git_path("hooks/%s", name);
- argv[1] = arg;
- argv[2] = NULL;
- snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", index_file);
- env[0] = index;
- env[1] = NULL;
-
- if (access(argv[0], X_OK) < 0)
- return 0;
-
- memset(&hook, 0, sizeof(hook));
- hook.argv = argv;
- hook.no_stdin = 1;
- hook.stdout_to_stderr = 1;
- hook.env = env;
-
- return run_command(&hook);
-}
-
static void print_summary(const char *prefix, const unsigned char *sha1)
{
struct rev_info rev;
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"
index_file = prepare_index(argc, argv, prefix);
- if (!no_verify && run_hook(index_file, "pre-commit", NULL)) {
+ /* 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();
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);
- 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_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))) {
- 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");