mirror of
https://github.com/git/git
synced 2024-08-28 12:09:19 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
This changes the "die_on_error" boolean parameter to a mere "flags", and changes the existing callers of hold_lock_file_for_update/append() functions to pass LOCK_DIE_ON_ERROR. Signed-off-by: Junio C Hamano <gitster@pobox.com>
1065 lines
28 KiB
C
1065 lines
28 KiB
C
/*
|
|
* Builtin "git commit"
|
|
*
|
|
* Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>
|
|
* Based on git-commit.sh by Junio C Hamano and Linus Torvalds
|
|
*/
|
|
|
|
#include "cache.h"
|
|
#include "cache-tree.h"
|
|
#include "color.h"
|
|
#include "dir.h"
|
|
#include "builtin.h"
|
|
#include "diff.h"
|
|
#include "diffcore.h"
|
|
#include "commit.h"
|
|
#include "revision.h"
|
|
#include "wt-status.h"
|
|
#include "run-command.h"
|
|
#include "refs.h"
|
|
#include "log-tree.h"
|
|
#include "strbuf.h"
|
|
#include "utf8.h"
|
|
#include "parse-options.h"
|
|
#include "string-list.h"
|
|
#include "rerere.h"
|
|
#include "unpack-trees.h"
|
|
|
|
static const char * const builtin_commit_usage[] = {
|
|
"git commit [options] [--] <filepattern>...",
|
|
NULL
|
|
};
|
|
|
|
static const char * const builtin_status_usage[] = {
|
|
"git status [options] [--] <filepattern>...",
|
|
NULL
|
|
};
|
|
|
|
static unsigned char head_sha1[20], merge_head_sha1[20];
|
|
static char *use_message_buffer;
|
|
static const char commit_editmsg[] = "COMMIT_EDITMSG";
|
|
static struct lock_file index_lock; /* real index */
|
|
static struct lock_file false_lock; /* used only for partial commits */
|
|
static enum {
|
|
COMMIT_AS_IS = 1,
|
|
COMMIT_NORMAL,
|
|
COMMIT_PARTIAL,
|
|
} commit_style;
|
|
|
|
static const char *logfile, *force_author;
|
|
static const char *template_file;
|
|
static char *edit_message, *use_message;
|
|
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;
|
|
static char *untracked_files_arg;
|
|
/*
|
|
* 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 use_editor = 1, initial_commit, in_merge;
|
|
static const char *only_include_assumed;
|
|
static struct strbuf message;
|
|
|
|
static int opt_parse_m(const struct option *opt, const char *arg, int unset)
|
|
{
|
|
struct strbuf *buf = opt->value;
|
|
if (unset)
|
|
strbuf_setlen(buf, 0);
|
|
else {
|
|
strbuf_addstr(buf, arg);
|
|
strbuf_addstr(buf, "\n\n");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct option builtin_commit_options[] = {
|
|
OPT__QUIET(&quiet),
|
|
OPT__VERBOSE(&verbose),
|
|
OPT_GROUP("Commit message options"),
|
|
|
|
OPT_STRING('F', "file", &logfile, "FILE", "read log from file"),
|
|
OPT_STRING(0, "author", &force_author, "AUTHOR", "override author for commit"),
|
|
OPT_CALLBACK('m', "message", &message, "MESSAGE", "specify commit message", opt_parse_m),
|
|
OPT_STRING('c', "reedit-message", &edit_message, "COMMIT", "reuse and edit message from specified commit "),
|
|
OPT_STRING('C', "reuse-message", &use_message, "COMMIT", "reuse message from specified commit"),
|
|
OPT_BOOLEAN('s', "signoff", &signoff, "add Signed-off-by:"),
|
|
OPT_STRING('t', "template", &template_file, "FILE", "use specified template file"),
|
|
OPT_BOOLEAN('e', "edit", &edit_flag, "force edit of commit"),
|
|
|
|
OPT_GROUP("Commit contents options"),
|
|
OPT_BOOLEAN('a', "all", &all, "commit all changed files"),
|
|
OPT_BOOLEAN('i', "include", &also, "add specified files to index for commit"),
|
|
OPT_BOOLEAN(0, "interactive", &interactive, "interactively add files"),
|
|
OPT_BOOLEAN('o', "only", &only, "commit only specified files"),
|
|
OPT_BOOLEAN('n', "no-verify", &no_verify, "bypass pre-commit hook"),
|
|
OPT_BOOLEAN(0, "amend", &amend, "amend previous commit"),
|
|
{ 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"),
|
|
OPT_STRING(0, "cleanup", &cleanup_arg, "default", "how to strip spaces and #comments from message"),
|
|
|
|
OPT_END()
|
|
};
|
|
|
|
static void rollback_index_files(void)
|
|
{
|
|
switch (commit_style) {
|
|
case COMMIT_AS_IS:
|
|
break; /* nothing to do */
|
|
case COMMIT_NORMAL:
|
|
rollback_lock_file(&index_lock);
|
|
break;
|
|
case COMMIT_PARTIAL:
|
|
rollback_lock_file(&index_lock);
|
|
rollback_lock_file(&false_lock);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int commit_index_files(void)
|
|
{
|
|
int err = 0;
|
|
|
|
switch (commit_style) {
|
|
case COMMIT_AS_IS:
|
|
break; /* nothing to do */
|
|
case COMMIT_NORMAL:
|
|
err = commit_lock_file(&index_lock);
|
|
break;
|
|
case COMMIT_PARTIAL:
|
|
err = commit_lock_file(&index_lock);
|
|
rollback_lock_file(&false_lock);
|
|
break;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* Take a union of paths in the index and the named tree (typically, "HEAD"),
|
|
* and return the paths that match the given pattern in list.
|
|
*/
|
|
static int list_paths(struct string_list *list, const char *with_tree,
|
|
const char *prefix, const char **pattern)
|
|
{
|
|
int i;
|
|
char *m;
|
|
|
|
for (i = 0; pattern[i]; i++)
|
|
;
|
|
m = xcalloc(1, i);
|
|
|
|
if (with_tree)
|
|
overlay_tree_on_cache(with_tree, prefix);
|
|
|
|
for (i = 0; i < active_nr; i++) {
|
|
struct cache_entry *ce = active_cache[i];
|
|
if (ce->ce_flags & CE_UPDATE)
|
|
continue;
|
|
if (!pathspec_match(pattern, m, ce->name, 0))
|
|
continue;
|
|
string_list_insert(ce->name, list);
|
|
}
|
|
|
|
return report_path_error(m, pattern, prefix ? strlen(prefix) : 0);
|
|
}
|
|
|
|
static void add_remove_files(struct string_list *list)
|
|
{
|
|
int i;
|
|
for (i = 0; i < list->nr; i++) {
|
|
struct stat st;
|
|
struct string_list_item *p = &(list->items[i]);
|
|
|
|
if (!lstat(p->string, &st)) {
|
|
if (add_to_cache(p->string, &st, 0))
|
|
die("updating files failed");
|
|
} else
|
|
remove_file_from_cache(p->string);
|
|
}
|
|
}
|
|
|
|
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.src_index = &the_index;
|
|
opts.dst_index = &the_index;
|
|
|
|
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);
|
|
if (unpack_trees(1, &t, &opts))
|
|
exit(128); /* We've already reported the error, finish dying */
|
|
}
|
|
|
|
static char *prepare_index(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int fd;
|
|
struct string_list partial;
|
|
const char **pathspec = NULL;
|
|
|
|
if (interactive) {
|
|
interactive_add(argc, argv, prefix);
|
|
if (read_cache() < 0)
|
|
die("index file corrupt");
|
|
commit_style = COMMIT_AS_IS;
|
|
return get_index_file();
|
|
}
|
|
|
|
if (read_cache() < 0)
|
|
die("index file corrupt");
|
|
|
|
if (*argv)
|
|
pathspec = get_pathspec(prefix, argv);
|
|
|
|
/*
|
|
* Non partial, non as-is commit.
|
|
*
|
|
* (1) get the real index;
|
|
* (2) update the_index as necessary;
|
|
* (3) write the_index out to the real index (still locked);
|
|
* (4) return the name of the locked index file.
|
|
*
|
|
* The caller should run hooks on the locked real index, and
|
|
* (A) if all goes well, commit the real index;
|
|
* (B) on failure, rollback the real index.
|
|
*/
|
|
if (all || (also && pathspec && *pathspec)) {
|
|
int fd = hold_locked_index(&index_lock, 1);
|
|
add_files_to_cache(also ? prefix : NULL, pathspec, 0);
|
|
refresh_cache(REFRESH_QUIET);
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* As-is commit.
|
|
*
|
|
* (1) return the name of the real index file.
|
|
*
|
|
* The caller should run hooks on the real index, and run
|
|
* hooks on the real index, and create commit from the_index.
|
|
* We still need to refresh the index here.
|
|
*/
|
|
if (!pathspec || !*pathspec) {
|
|
fd = hold_locked_index(&index_lock, 1);
|
|
refresh_cache(REFRESH_QUIET);
|
|
if (write_cache(fd, active_cache, active_nr) ||
|
|
commit_locked_index(&index_lock))
|
|
die("unable to write new_index file");
|
|
commit_style = COMMIT_AS_IS;
|
|
return get_index_file();
|
|
}
|
|
|
|
/*
|
|
* A partial commit.
|
|
*
|
|
* (0) find the set of affected paths;
|
|
* (1) get lock on the real index file;
|
|
* (2) update the_index with the given paths;
|
|
* (3) write the_index out to the real index (still locked);
|
|
* (4) get lock on the false index file;
|
|
* (5) reset the_index from HEAD;
|
|
* (6) update the_index the same way as (2);
|
|
* (7) write the_index out to the false index file;
|
|
* (8) return the name of the false index file (still locked);
|
|
*
|
|
* The caller should run hooks on the locked false index, and
|
|
* create commit from it. Then
|
|
* (A) if all goes well, commit the real index;
|
|
* (B) on failure, rollback the real index;
|
|
* In either case, rollback the false index.
|
|
*/
|
|
commit_style = COMMIT_PARTIAL;
|
|
|
|
if (file_exists(git_path("MERGE_HEAD")))
|
|
die("cannot do a partial commit during a merge.");
|
|
|
|
memset(&partial, 0, sizeof(partial));
|
|
partial.strdup_strings = 1;
|
|
if (list_paths(&partial, initial_commit ? NULL : "HEAD", prefix, pathspec))
|
|
exit(1);
|
|
|
|
discard_cache();
|
|
if (read_cache() < 0)
|
|
die("cannot read the index");
|
|
|
|
fd = hold_locked_index(&index_lock, 1);
|
|
add_remove_files(&partial);
|
|
refresh_cache(REFRESH_QUIET);
|
|
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()),
|
|
LOCK_DIE_ON_ERROR);
|
|
|
|
create_base_index();
|
|
add_remove_files(&partial);
|
|
refresh_cache(REFRESH_QUIET);
|
|
|
|
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;
|
|
}
|
|
|
|
static int run_status(FILE *fp, const char *index_file, const char *prefix, int nowarn)
|
|
{
|
|
struct wt_status s;
|
|
|
|
wt_status_prepare(&s);
|
|
if (wt_status_relative_paths)
|
|
s.prefix = prefix;
|
|
|
|
if (amend) {
|
|
s.amend = 1;
|
|
s.reference = "HEAD^1";
|
|
}
|
|
s.verbose = verbose;
|
|
s.untracked = (show_untracked_files == SHOW_ALL_UNTRACKED_FILES);
|
|
s.index_file = index_file;
|
|
s.fp = fp;
|
|
s.nowarn = nowarn;
|
|
|
|
wt_status_print(&s);
|
|
|
|
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 void determine_author_info(void)
|
|
{
|
|
char *name, *email, *date;
|
|
|
|
name = getenv("GIT_AUTHOR_NAME");
|
|
email = getenv("GIT_AUTHOR_EMAIL");
|
|
date = getenv("GIT_AUTHOR_DATE");
|
|
|
|
if (use_message) {
|
|
const char *a, *lb, *rb, *eol;
|
|
|
|
a = strstr(use_message_buffer, "\nauthor ");
|
|
if (!a)
|
|
die("invalid commit: %s", use_message);
|
|
|
|
lb = strstr(a + 8, " <");
|
|
rb = strstr(a + 8, "> ");
|
|
eol = strchr(a + 8, '\n');
|
|
if (!lb || !rb || !eol)
|
|
die("invalid commit: %s", use_message);
|
|
|
|
name = xstrndup(a + 8, lb - (a + 8));
|
|
email = xstrndup(lb + 2, rb - (lb + 2));
|
|
date = xstrndup(rb + 2, eol - (rb + 2));
|
|
}
|
|
|
|
if (force_author) {
|
|
const char *lb = strstr(force_author, " <");
|
|
const char *rb = strchr(force_author, '>');
|
|
|
|
if (!lb || !rb)
|
|
die("malformed --author parameter");
|
|
name = xstrndup(force_author, lb - force_author);
|
|
email = xstrndup(lb + 2, rb - (lb + 2));
|
|
}
|
|
|
|
author_name = name;
|
|
author_email = email;
|
|
author_date = date;
|
|
}
|
|
|
|
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;
|
|
int ident_shown = 0;
|
|
|
|
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: %s",
|
|
git_path(commit_editmsg), strerror(errno));
|
|
|
|
if (cleanup_mode != CLEANUP_NONE)
|
|
stripspace(&sb, 0);
|
|
|
|
if (signoff) {
|
|
struct strbuf sob;
|
|
int i;
|
|
|
|
strbuf_init(&sob, 0);
|
|
strbuf_addstr(&sob, sign_off_header);
|
|
strbuf_addstr(&sob, fmt_name(getenv("GIT_COMMITTER_NAME"),
|
|
getenv("GIT_COMMITTER_EMAIL")));
|
|
strbuf_addch(&sob, '\n');
|
|
for (i = sb.len - 1; i > 0 && sb.buf[i - 1] != '\n'; i--)
|
|
; /* do nothing */
|
|
if (prefixcmp(sb.buf + i, sob.buf)) {
|
|
if (prefixcmp(sb.buf + i, sign_off_header))
|
|
strbuf_addch(&sb, '\n');
|
|
strbuf_addbuf(&sb, &sob);
|
|
}
|
|
strbuf_release(&sob);
|
|
}
|
|
|
|
if (fwrite(sb.buf, 1, sb.len, fp) < sb.len)
|
|
die("could not write commit template: %s", strerror(errno));
|
|
|
|
strbuf_release(&sb);
|
|
|
|
determine_author_info();
|
|
|
|
/* This checks if committer ident is explicitly given */
|
|
git_committer_info(0);
|
|
if (use_editor) {
|
|
char *author_ident;
|
|
const char *committer_ident;
|
|
|
|
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.");
|
|
if (cleanup_mode == CLEANUP_ALL)
|
|
fprintf(fp,
|
|
" Lines starting\n"
|
|
"# with '#' will be ignored, and an empty"
|
|
" message aborts the commit.\n");
|
|
else /* CLEANUP_SPACE, that is. */
|
|
fprintf(fp,
|
|
" Lines starting\n"
|
|
"# with '#' will be kept; you may remove them"
|
|
" yourself if you want to.\n"
|
|
"# An empty message aborts the commit.\n");
|
|
if (only_include_assumed)
|
|
fprintf(fp, "# %s\n", only_include_assumed);
|
|
|
|
author_ident = xstrdup(fmt_name(author_name, author_email));
|
|
committer_ident = fmt_name(getenv("GIT_COMMITTER_NAME"),
|
|
getenv("GIT_COMMITTER_EMAIL"));
|
|
if (strcmp(author_ident, committer_ident))
|
|
fprintf(fp,
|
|
"%s"
|
|
"# Author: %s\n",
|
|
ident_shown++ ? "" : "#\n",
|
|
author_ident);
|
|
free(author_ident);
|
|
|
|
if (!user_ident_explicitly_given)
|
|
fprintf(fp,
|
|
"%s"
|
|
"# Committer: %s\n",
|
|
ident_shown++ ? "" : "#\n",
|
|
committer_ident);
|
|
|
|
if (ident_shown)
|
|
fprintf(fp, "#\n");
|
|
|
|
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 (amend)
|
|
parent = "HEAD^1";
|
|
|
|
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 */);
|
|
|
|
commitable = !!DIFF_OPT_TST(&rev.diffopt, HAS_CHANGES);
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* 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; the index is unmerged?");
|
|
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);
|
|
if (launch_editor(git_path(commit_editmsg), NULL, env)) {
|
|
fprintf(stderr,
|
|
"Please supply the message using either -m or -F option.\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
if (!no_verify &&
|
|
run_hook(index_file, "commit-msg", git_path(commit_editmsg), NULL)) {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Find out if the message starting at position 'start' in the strbuf
|
|
* contains only whitespace and Signed-off-by lines.
|
|
*/
|
|
static int message_is_empty(struct strbuf *sb, int start)
|
|
{
|
|
struct strbuf tmpl;
|
|
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, cleanup_mode == CLEANUP_ALL);
|
|
if (start + tmpl.len <= sb->len &&
|
|
memcmp(tmpl.buf, sb->buf + start, tmpl.len) == 0)
|
|
start += tmpl.len;
|
|
}
|
|
strbuf_release(&tmpl);
|
|
|
|
/* Check if the rest is just whitespace and Signed-of-by's. */
|
|
for (i = start; i < sb->len; i++) {
|
|
nl = memchr(sb->buf + i, '\n', sb->len - i);
|
|
if (nl)
|
|
eol = nl - sb->buf;
|
|
else
|
|
eol = sb->len;
|
|
|
|
if (strlen(sign_off_header) <= eol - i &&
|
|
!prefixcmp(sb->buf + i, sign_off_header)) {
|
|
i = eol;
|
|
continue;
|
|
}
|
|
while (i < eol)
|
|
if (!isspace(sb->buf[i++]))
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int parse_and_validate_options(int argc, const char *argv[],
|
|
const char * const usage[],
|
|
const char *prefix)
|
|
{
|
|
int f = 0;
|
|
|
|
argc = parse_options(argc, argv, builtin_commit_options, usage, 0);
|
|
logfile = parse_options_fix_filename(prefix, logfile);
|
|
template_file = parse_options_fix_filename(prefix, template_file);
|
|
|
|
if (logfile || message.len || use_message)
|
|
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;
|
|
|
|
if (!get_sha1("MERGE_HEAD", merge_head_sha1))
|
|
in_merge = 1;
|
|
|
|
/* Sanity check options */
|
|
if (amend && initial_commit)
|
|
die("You have nothing to amend.");
|
|
if (amend && in_merge)
|
|
die("You are in the middle of a merge -- cannot amend.");
|
|
|
|
if (use_message)
|
|
f++;
|
|
if (edit_message)
|
|
f++;
|
|
if (logfile)
|
|
f++;
|
|
if (f > 1)
|
|
die("Only one of -c/-C/-F can be used.");
|
|
if (message.len && f > 0)
|
|
die("Option -m cannot be combined with -c/-C/-F.");
|
|
if (edit_message)
|
|
use_message = edit_message;
|
|
if (amend && !use_message)
|
|
use_message = "HEAD";
|
|
if (use_message) {
|
|
unsigned char sha1[20];
|
|
static char utf8[] = "UTF-8";
|
|
const char *out_enc;
|
|
char *enc, *end;
|
|
struct commit *commit;
|
|
|
|
if (get_sha1(use_message, sha1))
|
|
die("could not lookup commit %s", use_message);
|
|
commit = lookup_commit_reference(sha1);
|
|
if (!commit || parse_commit(commit))
|
|
die("could not parse commit %s", use_message);
|
|
|
|
enc = strstr(commit->buffer, "\nencoding");
|
|
if (enc) {
|
|
end = strchr(enc + 10, '\n');
|
|
enc = xstrndup(enc + 10, end - (enc + 10));
|
|
} else {
|
|
enc = utf8;
|
|
}
|
|
out_enc = git_commit_encoding ? git_commit_encoding : utf8;
|
|
|
|
if (strcmp(out_enc, enc))
|
|
use_message_buffer =
|
|
reencode_string(commit->buffer, out_enc, enc);
|
|
|
|
/*
|
|
* If we failed to reencode the buffer, just copy it
|
|
* byte for byte so the user can try to fix it up.
|
|
* This also handles the case where input and output
|
|
* encodings are identical.
|
|
*/
|
|
if (use_message_buffer == NULL)
|
|
use_message_buffer = xstrdup(commit->buffer);
|
|
if (enc != utf8)
|
|
free(enc);
|
|
}
|
|
|
|
if (!!also + !!only + !!all + !!interactive > 1)
|
|
die("Only one of --include/--only/--all/--interactive can be used.");
|
|
if (argc == 0 && (also || (only && !amend)))
|
|
die("No paths with --include/--only does not make sense.");
|
|
if (argc == 0 && only && amend)
|
|
only_include_assumed = "Clever... amending the last one with dirty index.";
|
|
if (argc > 0 && !also && !only)
|
|
only_include_assumed = "Explicit paths specified without -i nor -o; assuming --only paths...";
|
|
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 (!untracked_files_arg)
|
|
; /* default already initialized */
|
|
else if (!strcmp(untracked_files_arg, "no"))
|
|
show_untracked_files = SHOW_NO_UNTRACKED_FILES;
|
|
else if (!strcmp(untracked_files_arg, "normal"))
|
|
show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
|
|
else if (!strcmp(untracked_files_arg, "all"))
|
|
show_untracked_files = SHOW_ALL_UNTRACKED_FILES;
|
|
else
|
|
die("Invalid untracked files mode '%s'", untracked_files_arg);
|
|
|
|
if (all && argc > 0)
|
|
die("Paths with -a does not make sense.");
|
|
else if (interactive && argc > 0)
|
|
die("Paths with --interactive does not make sense.");
|
|
|
|
return argc;
|
|
}
|
|
|
|
int cmd_status(int argc, const char **argv, const char *prefix)
|
|
{
|
|
const char *index_file;
|
|
int commitable;
|
|
|
|
git_config(git_status_config, NULL);
|
|
|
|
if (wt_status_use_color == -1)
|
|
wt_status_use_color = git_use_color_default;
|
|
|
|
argc = parse_and_validate_options(argc, argv, builtin_status_usage, prefix);
|
|
|
|
index_file = prepare_index(argc, argv, prefix);
|
|
|
|
commitable = run_status(stdout, index_file, prefix, 0);
|
|
|
|
rollback_index_files();
|
|
|
|
return commitable ? 0 : 1;
|
|
}
|
|
|
|
static void print_summary(const char *prefix, const unsigned char *sha1)
|
|
{
|
|
struct rev_info rev;
|
|
struct commit *commit;
|
|
|
|
commit = lookup_commit(sha1);
|
|
if (!commit)
|
|
die("couldn't look up newly created commit");
|
|
if (!commit || parse_commit(commit))
|
|
die("could not parse newly created commit");
|
|
|
|
init_revisions(&rev, prefix);
|
|
setup_revisions(0, NULL, &rev, NULL);
|
|
|
|
rev.abbrev = 0;
|
|
rev.diff = 1;
|
|
rev.diffopt.output_format =
|
|
DIFF_FORMAT_SHORTSTAT | DIFF_FORMAT_SUMMARY;
|
|
|
|
rev.verbose_header = 1;
|
|
rev.show_root_diff = 1;
|
|
get_commit_format("format:%h: %s", &rev);
|
|
rev.always_show_header = 0;
|
|
rev.diffopt.detect_rename = 1;
|
|
rev.diffopt.rename_limit = 100;
|
|
rev.diffopt.break_opt = 0;
|
|
diff_setup_done(&rev.diffopt);
|
|
|
|
printf("Created %scommit ", initial_commit ? "initial " : "");
|
|
|
|
if (!log_tree_commit(&rev, commit)) {
|
|
struct strbuf buf = STRBUF_INIT;
|
|
format_commit_message(commit, "%h: %s", &buf, DATE_NORMAL);
|
|
printf("%s\n", buf.buf);
|
|
strbuf_release(&buf);
|
|
}
|
|
}
|
|
|
|
static int git_commit_config(const char *k, const char *v, void *cb)
|
|
{
|
|
if (!strcmp(k, "commit.template"))
|
|
return git_config_string(&template_file, k, v);
|
|
|
|
return git_status_config(k, v, cb);
|
|
}
|
|
|
|
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);
|
|
const char *cp;
|
|
|
|
if (!obj)
|
|
die("Unable to find commit parent %s", parent);
|
|
if (obj->type != OBJ_COMMIT)
|
|
die("Parent %s isn't a proper commit", parent);
|
|
|
|
for (cp = sb->buf; cp && (cp = strstr(cp, "\nparent ")); cp += 8) {
|
|
if (!memcmp(cp + 8, parent, 40) && cp[48] == '\n') {
|
|
error("duplicate parent %s ignored", parent);
|
|
return;
|
|
}
|
|
}
|
|
strbuf_addf(sb, "parent %s\n", parent);
|
|
}
|
|
|
|
int cmd_commit(int argc, const char **argv, const char *prefix)
|
|
{
|
|
int header_len;
|
|
struct strbuf sb;
|
|
const char *index_file, *reflog_msg;
|
|
char *nl, *p;
|
|
unsigned char commit_sha1[20];
|
|
struct ref_lock *ref_lock;
|
|
|
|
git_config(git_commit_config, NULL);
|
|
|
|
argc = parse_and_validate_options(argc, argv, builtin_commit_usage, prefix);
|
|
|
|
index_file = prepare_index(argc, argv, prefix);
|
|
|
|
/* 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;
|
|
}
|
|
|
|
/*
|
|
* The commit object
|
|
*/
|
|
strbuf_init(&sb, 0);
|
|
strbuf_addf(&sb, "tree %s\n",
|
|
sha1_to_hex(active_cache_tree->sha1));
|
|
|
|
/* Determine parents */
|
|
if (initial_commit) {
|
|
reflog_msg = "commit (initial)";
|
|
} else if (amend) {
|
|
struct commit_list *c;
|
|
struct commit *commit;
|
|
|
|
reflog_msg = "commit (amend)";
|
|
commit = lookup_commit(head_sha1);
|
|
if (!commit || parse_commit(commit))
|
|
die("could not parse HEAD commit");
|
|
|
|
for (c = commit->parents; c; c = c->next)
|
|
add_parent(&sb, c->item->object.sha1);
|
|
} else if (in_merge) {
|
|
struct strbuf m;
|
|
FILE *fp;
|
|
|
|
reflog_msg = "commit (merge)";
|
|
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) {
|
|
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 {
|
|
reflog_msg = "commit";
|
|
strbuf_addf(&sb, "parent %s\n", sha1_to_hex(head_sha1));
|
|
}
|
|
|
|
strbuf_addf(&sb, "author %s\n",
|
|
fmt_ident(author_name, author_email, author_date, IDENT_ERROR_ON_NO_NAME));
|
|
strbuf_addf(&sb, "committer %s\n", git_committer_info(IDENT_ERROR_ON_NO_NAME));
|
|
if (!is_encoding_utf8(git_commit_encoding))
|
|
strbuf_addf(&sb, "encoding %s\n", git_commit_encoding);
|
|
strbuf_addch(&sb, '\n');
|
|
|
|
/* Finally, get the commit message */
|
|
header_len = sb.len;
|
|
if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
|
|
rollback_index_files();
|
|
die("could not read commit message");
|
|
}
|
|
|
|
/* Truncate the message just before the diff, if any. */
|
|
p = strstr(sb.buf, "\ndiff --git a/");
|
|
if (p != NULL)
|
|
strbuf_setlen(&sb, p - sb.buf + 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();
|
|
fprintf(stderr, "Aborting commit due to empty commit message.\n");
|
|
exit(1);
|
|
}
|
|
strbuf_addch(&sb, '\0');
|
|
if (is_encoding_utf8(git_commit_encoding) && !is_utf8(sb.buf))
|
|
fprintf(stderr, commit_utf8_warn);
|
|
|
|
if (write_sha1_file(sb.buf, sb.len - 1, commit_type, commit_sha1)) {
|
|
rollback_index_files();
|
|
die("failed to write commit object");
|
|
}
|
|
|
|
ref_lock = lock_any_ref_for_update("HEAD",
|
|
initial_commit ? NULL : head_sha1,
|
|
0);
|
|
|
|
nl = strchr(sb.buf + header_len, '\n');
|
|
if (nl)
|
|
strbuf_setlen(&sb, nl + 1 - sb.buf);
|
|
else
|
|
strbuf_addch(&sb, '\n');
|
|
strbuf_remove(&sb, 0, header_len);
|
|
strbuf_insert(&sb, 0, reflog_msg, strlen(reflog_msg));
|
|
strbuf_insert(&sb, strlen(reflog_msg), ": ", 2);
|
|
|
|
if (!ref_lock) {
|
|
rollback_index_files();
|
|
die("cannot lock HEAD ref");
|
|
}
|
|
if (write_ref_sha1(ref_lock, commit_sha1, sb.buf) < 0) {
|
|
rollback_index_files();
|
|
die("cannot update HEAD ref");
|
|
}
|
|
|
|
unlink(git_path("MERGE_HEAD"));
|
|
unlink(git_path("MERGE_MSG"));
|
|
unlink(git_path("SQUASH_MSG"));
|
|
|
|
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);
|
|
if (!quiet)
|
|
print_summary(prefix, commit_sha1);
|
|
|
|
return 0;
|
|
}
|