#include "cache.h"
#include "cache-tree.h"
+#include "color.h"
#include "dir.h"
#include "builtin.h"
#include "diff.h"
#include "utf8.h"
#include "parse-options.h"
#include "path-list.h"
+#include "unpack-trees.h"
static const char * const builtin_commit_usage[] = {
"git-commit [options] [--] <filepattern>...",
static char *edit_message, *use_message;
static int all, edit_flag, also, interactive, only, amend, signoff;
static int quiet, verbose, untracked_files, no_verify, allow_empty;
+/*
+ * The default commit message cleanup mode will remove the lines
+ * beginning with # (shell comments) and leading and trailing
+ * whitespaces (empty lines or containing only whitespaces)
+ * if editor is used, and only the whitespaces if the message
+ * is specified explicitly.
+ */
+static enum {
+ CLEANUP_SPACE,
+ CLEANUP_NONE,
+ CLEANUP_ALL,
+} cleanup_mode;
+static char *cleanup_arg;
-static int no_edit, initial_commit, in_merge;
+static int use_editor = 1, initial_commit, in_merge;
const char *only_include_assumed;
struct strbuf message;
OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
OPT_BOOLEAN(0, "untracked-files", &untracked_files, "show all untracked files"),
OPT_BOOLEAN(0, "allow-empty", &allow_empty, "ok to record an empty change"),
+ OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
OPT_END()
};
}
}
-static void commit_index_files(void)
+static int commit_index_files(void)
{
+ int err = 0;
+
switch (commit_style) {
case COMMIT_AS_IS:
break; /* nothing to do */
case COMMIT_NORMAL:
- commit_lock_file(&index_lock);
+ err = commit_lock_file(&index_lock);
break;
case COMMIT_PARTIAL:
- commit_lock_file(&index_lock);
+ err = commit_lock_file(&index_lock);
rollback_lock_file(&false_lock);
break;
}
+
+ return err;
}
/*
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
- if (ce->ce_flags & htons(CE_UPDATE))
+ if (ce->ce_flags & CE_UPDATE)
continue;
if (!pathspec_match(pattern, m, ce->name, 0))
continue;
}
}
+static void create_base_index(void)
+{
+ struct tree *tree;
+ struct unpack_trees_options opts;
+ struct tree_desc t;
+
+ if (initial_commit) {
+ discard_cache();
+ return;
+ }
+
+ memset(&opts, 0, sizeof(opts));
+ opts.head_idx = 1;
+ opts.index_only = 1;
+ opts.merge = 1;
+
+ opts.fn = oneway_merge;
+ tree = parse_tree_indirect(head_sha1);
+ if (!tree)
+ die("failed to unpack HEAD tree object");
+ parse_tree(tree);
+ init_tree_desc(&t, tree->buffer, tree->size);
+ unpack_trees(1, &t, &opts);
+}
+
static char *prepare_index(int argc, const char **argv, const char *prefix)
{
int fd;
- struct tree *tree;
struct path_list partial;
const char **pathspec = NULL;
int fd = hold_locked_index(&index_lock, 1);
add_files_to_cache(0, also ? prefix : NULL, pathspec);
refresh_cache(REFRESH_QUIET);
- if (write_cache(fd, active_cache, active_nr) || close(fd))
+ if (write_cache(fd, active_cache, active_nr) ||
+ close_lock_file(&index_lock))
die("unable to write new_index file");
commit_style = COMMIT_NORMAL;
return index_lock.filename;
fd = hold_locked_index(&index_lock, 1);
refresh_cache(REFRESH_QUIET);
if (write_cache(fd, active_cache, active_nr) ||
- close(fd) || commit_locked_index(&index_lock))
+ commit_locked_index(&index_lock))
die("unable to write new_index file");
commit_style = COMMIT_AS_IS;
return get_index_file();
fd = hold_locked_index(&index_lock, 1);
add_remove_files(&partial);
refresh_cache(REFRESH_QUIET);
- if (write_cache(fd, active_cache, active_nr) || close(fd))
+ if (write_cache(fd, active_cache, active_nr) ||
+ close_lock_file(&index_lock))
die("unable to write new_index file");
fd = hold_lock_file_for_update(&false_lock,
git_path("next-index-%d", getpid()), 1);
- discard_cache();
- if (!initial_commit) {
- tree = parse_tree_indirect(head_sha1);
- if (!tree)
- die("failed to unpack HEAD tree object");
- if (read_tree(tree, 0, NULL))
- die("failed to read HEAD tree object");
- }
+
+ create_base_index();
add_remove_files(&partial);
refresh_cache(REFRESH_QUIET);
- if (write_cache(fd, active_cache, active_nr) || close(fd))
+ if (write_cache(fd, active_cache, active_nr) ||
+ close_lock_file(&false_lock))
die("unable to write temporary index file");
+
+ discard_cache();
+ read_cache_from(false_lock.filename);
+
return false_lock.filename;
}
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));
- stripspace(&sb, 0);
+ if (cleanup_mode != CLEANUP_NONE)
+ stripspace(&sb, 0);
if (signoff) {
struct strbuf sob;
strbuf_release(&sb);
- if (no_edit) {
- struct rev_info rev;
- unsigned char sha1[40];
+ 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"));
- fclose(fp);
+ 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";
if (!active_nr && read_cache() < 0)
die("Cannot read index");
- if (get_sha1("HEAD", sha1) != 0)
- return !!active_nr;
+ if (amend)
+ parent = "HEAD^1";
- init_revisions(&rev, "");
- rev.abbrev = 0;
- setup_revisions(0, NULL, &rev, "HEAD");
- DIFF_OPT_SET(&rev.diffopt, QUIET);
- DIFF_OPT_SET(&rev.diffopt, EXIT_WITH_STATUS);
- run_diff_index(&rev, 1 /* cached */);
+ if (get_sha1(parent, sha1))
+ 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 */);
- return !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
+ commitable = !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
+ }
}
- if (in_merge && !no_edit)
- 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 not be included)\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;
-
fclose(fp);
- return commitable;
+ if (!commitable && !in_merge && !allow_empty &&
+ !(amend && is_a_merge(head_sha1))) {
+ run_status(stdout, index_file, prefix, 0);
+ unlink(commit_editmsg);
+ return 0;
+ }
+
+ /*
+ * 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 (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);
+ }
+
+ if (!no_verify &&
+ run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
+ return 0;
+ }
+
+ return 1;
}
/*
const char *nl;
int eol, i;
+ if (cleanup_mode == CLEANUP_NONE && sb->len)
+ return 0;
+
/* See if the template is just a prefix of the message. */
strbuf_init(&tmpl, 0);
if (template_file && strbuf_read_file(&tmpl, template_file, 0) > 0) {
- stripspace(&tmpl, 1);
+ stripspace(&tmpl, cleanup_mode == CLEANUP_ALL);
if (start + tmpl.len <= sb->len &&
memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0)
start += tmpl.len;
argc = parse_options(argc, argv, builtin_commit_options, usage, 0);
if (logfile || message.len || use_message)
- no_edit = 1;
+ use_editor = 0;
if (edit_flag)
- no_edit = 0;
+ use_editor = 1;
+ if (!use_editor)
+ setenv("GIT_EDITOR", ":", 1);
if (get_sha1("HEAD", head_sha1))
initial_commit = 1;
if (get_sha1(use_message, sha1))
die("could not lookup commit %s", use_message);
- commit = lookup_commit(sha1);
+ commit = lookup_commit_reference(sha1);
if (!commit || parse_commit(commit))
die("could not parse commit %s", use_message);
only_include_assumed = "Explicit paths specified without -i nor -o; assuming --only paths...";
also = 0;
}
+ if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
+ cleanup_mode = use_editor ? CLEANUP_ALL : CLEANUP_SPACE;
+ else if (!strcmp(cleanup_arg, "verbatim"))
+ cleanup_mode = CLEANUP_NONE;
+ else if (!strcmp(cleanup_arg, "whitespace"))
+ cleanup_mode = CLEANUP_SPACE;
+ else if (!strcmp(cleanup_arg, "strip"))
+ cleanup_mode = CLEANUP_ALL;
+ else
+ die("Invalid cleanup mode %s", cleanup_arg);
if (all && argc > 0)
die("Paths with -a does not make sense.");
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;
int git_commit_config(const char *k, const char *v)
{
if (!strcmp(k, "commit.template")) {
+ if (!v)
+ return config_error_nonbool(v);
template_file = xstrdup(v);
return 0;
}
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"
"variable i18n.commitencoding to the encoding your project uses.\n";
+static void add_parent(struct strbuf *sb, const unsigned char *sha1)
+{
+ struct object *obj = parse_object(sha1);
+ const char *parent = sha1_to_hex(sha1);
+ if (!obj)
+ die("Unable to find commit parent %s", parent);
+ if (obj->type != OBJ_COMMIT)
+ die("Parent %s isn't a proper commit", parent);
+ strbuf_addf(sb, "parent %s\n", parent);
+}
+
int cmd_commit(int argc, const char **argv, const char *prefix)
{
int header_len;
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
*/
die("could not parse HEAD commit");
for (c = commit->parents; c; c = c->next)
- strbuf_addf(&sb, "parent %s\n",
- sha1_to_hex(c->item->object.sha1));
+ add_parent(&sb, c->item->object.sha1);
} else if (in_merge) {
struct strbuf m;
FILE *fp;
reflog_msg = "commit (merge)";
- strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1));
+ add_parent(&sb, head_sha1);
strbuf_init(&m, 0);
fp = fopen(git_path("MERGE_HEAD"), "r");
if (fp == NULL)
die("could not open %s for reading: %s",
git_path("MERGE_HEAD"), strerror(errno));
- while (strbuf_getline(&m, fp, '\n') != EOF)
- strbuf_addf(&sb, "parent %s\n", m.buf);
+ while (strbuf_getline(&m, fp, '\n') != EOF) {
+ unsigned char sha1[20];
+ if (get_sha1_hex(m.buf, sha1) < 0)
+ die("Corrupt MERGE_HEAD file (%s)", m.buf);
+ add_parent(&sb, sha1);
+ }
fclose(fp);
strbuf_release(&m);
} else {
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 (!no_edit) {
- 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");
if (p != NULL)
strbuf_setlen(&sb, p - sb.buf + 1);
- stripspace(&sb, 1);
+ if (cleanup_mode != CLEANUP_NONE)
+ stripspace(&sb, cleanup_mode == CLEANUP_ALL);
if (sb.len < header_len || message_is_empty(&sb, header_len)) {
rollback_index_files();
die("no commit message? aborting commit.");
unlink(git_path("MERGE_HEAD"));
unlink(git_path("MERGE_MSG"));
+ unlink(git_path("SQUASH_MSG"));
- commit_index_files();
+ if (commit_index_files())
+ die ("Repository has been updated, but unable to write\n"
+ "new_index file. Check that disk is not full or quota is\n"
+ "not exceeded, and then \"git reset HEAD\" to recover.");
rerere();
run_hook(get_index_file(), "post-commit", NULL);