static void adjust_git_path(struct strbuf *buf, int git_dir_len)
{
const char *base = buf->buf + git_dir_len;
if (git_graft_env && is_dir_file(base, "info", "grafts"))
strbuf_splice(buf, 0, buf->len,
get_graft_file(), strlen(get_graft_file()));
else if (git_index_env && !strcmp(base, "index"))
strbuf_splice(buf, 0, buf->len,
get_index_file(), strlen(get_index_file()));
else if (git_db_env && dir_prefix(base, "objects"))
replace_dir(buf, git_dir_len + 7, get_object_directory());
else if (git_common_dir_env)
update_common_dir(buf, git_dir_len);
}
static void run_prepare_commit_msg(void)
{
write_merge_msg();
run_hook(get_index_file(), "prepare-commit-msg",
git_path("MERGE_MSG"), "merge", NULL, NULL);
read_merge_msg();
}
static int try_merge_strategy(const char *strategy, struct commit_list *common,
const char *head_arg)
{
int index_fd;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
index_fd = hold_locked_index(lock, 1);
refresh_cache(REFRESH_QUIET);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(lock)))
return error(_("Unable to write index."));
rollback_lock_file(lock);
if (!strcmp(strategy, "recursive") || !strcmp(strategy, "subtree")) {
int clean, x;
struct commit *result;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
int index_fd;
struct commit_list *reversed = NULL;
struct merge_options o;
struct commit_list *j;
if (remoteheads->next) {
error(_("Not handling anything other than two heads merge."));
return 2;
}
init_merge_options(&o);
if (!strcmp(strategy, "subtree"))
o.subtree_shift = "";
o.renormalize = option_renormalize;
o.show_rename_progress =
show_progress == -1 ? isatty(2) : show_progress;
for (x = 0; x < xopts_nr; x++)
if (parse_merge_opt(&o, xopts[x]))
die(_("Unknown option for merge-recursive: -X%s"), xopts[x]);
o.branch1 = head_arg;
o.branch2 = remoteheads->item->util;
for (j = common; j; j = j->next)
commit_list_insert(j->item, &reversed);
index_fd = hold_locked_index(lock, 1);
clean = merge_recursive(&o, lookup_commit(head),
remoteheads->item, reversed, &result);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(lock)))
die (_("unable to write %s"), get_index_file());
rollback_lock_file(lock);
return clean ? 0 : 1;
} else {
return try_merge_command(strategy, xopts_nr, xopts,
common, head_arg, remoteheads);
}
}
static int run_hook(const char *name)
{
struct child_process hook;
const char *argv[3], *env[2];
char index[PATH_MAX];
argv[0] = git_path("hooks/%s", name);
if (access(argv[0], X_OK) < 0)
return 0;
snprintf(index, sizeof(index), "GIT_INDEX_FILE=%s", get_index_file());
env[0] = index;
env[1] = NULL;
if (squash)
argv[1] = "1";
else
argv[1] = "0";
argv[2] = NULL;
memset(&hook, 0, sizeof(hook));
hook.argv = argv;
hook.no_stdin = 1;
hook.stdout_to_stderr = 1;
hook.env = env;
return run_command(&hook);
}
int hold_locked_index(struct lock_file *lk, int die_on_error)
{
return hold_lock_file_for_update(lk, get_index_file(),
die_on_error
? LOCK_DIE_ON_ERROR
: 0);
}
int main(int argc, char **argv)
{
int i, newfd, merge;
unsigned char sha1[20];
static char lockfile[MAXPATHLEN+1];
const char *indexfile = get_index_file();
snprintf(lockfile, sizeof(lockfile), "%s.lock", indexfile);
newfd = open(lockfile, O_RDWR | O_CREAT | O_EXCL, 0600);
if (newfd < 0)
die("unable to create new cachefile");
atexit(remove_lock_file);
lockfile_name = lockfile;
merge = 0;
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
/* "-m" stands for "merge", meaning we start in stage 1 */
if (!strcmp(arg, "-m")) {
int i;
if (stage)
die("-m needs to come first");
read_cache();
for (i = 0; i < active_nr; i++) {
if (ce_stage(active_cache[i]))
die("you need to resolve your current index first");
}
stage = 1;
merge = 1;
continue;
}
if (get_sha1_hex(arg, sha1) < 0)
usage(read_tree_usage);
if (stage > 3)
usage(read_tree_usage);
if (unpack_tree(sha1) < 0)
die("failed to unpack tree object %s", arg);
stage++;
}
if (merge) {
switch (stage) {
case 4: /* Three-way merge */
trivially_merge_cache(active_cache, active_nr);
break;
case 2: /* Just read a tree, merge with old cache contents */
merge_stat_info(active_cache, active_nr);
break;
default:
die("just how do you expect me to merge %d trees?", stage-1);
}
}
if (write_cache(newfd, active_cache, active_nr) || rename(lockfile, indexfile))
die("unable to write new index file");
lockfile_name = NULL;
return 0;
}
int read_cache(void)
{
int fd, i;
struct stat st;
unsigned long size, offset;
void *map;
struct cache_header *hdr;
errno = EBUSY;
if (active_cache)
return error("more than one cachefile");
errno = ENOENT;
sha1_file_directory = getenv(DB_ENVIRONMENT);
if (!sha1_file_directory)
sha1_file_directory = DEFAULT_DB_ENVIRONMENT;
if (access(sha1_file_directory, X_OK) < 0)
return error("no access to SHA1 file directory");
fd = open(get_index_file(), O_RDONLY);
if (fd < 0)
return (errno == ENOENT) ? 0 : error("open failed");
size = 0; // avoid gcc warning
map = (void *)-1;
if (!fstat(fd, &st)) {
size = st.st_size;
errno = EINVAL;
if (size >= sizeof(struct cache_header) + 20)
map = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
}
close(fd);
if (-1 == (int)(long)map)
return error("mmap failed");
hdr = map;
if (verify_hdr(hdr, size) < 0)
goto unmap;
active_nr = ntohl(hdr->hdr_entries);
active_alloc = alloc_nr(active_nr);
active_cache = calloc(active_alloc, sizeof(struct cache_entry *));
offset = sizeof(*hdr);
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = map + offset;
offset = offset + ce_size(ce);
active_cache[i] = ce;
}
return active_nr;
unmap:
munmap(map, size);
errno = EINVAL;
return error("verify header failed");
}
void wt_status_prepare(struct wt_status *s)
{
unsigned char sha1[20];
const char *head;
memset(s, 0, sizeof(*s));
head = resolve_ref("HEAD", sha1, 0, NULL);
s->branch = head ? xstrdup(head) : NULL;
s->reference = "HEAD";
s->fp = stdout;
s->index_file = get_index_file();
}
void wt_status_prepare(struct wt_status *s)
{
unsigned char sha1[20];
memset(s, 0, sizeof(*s));
memcpy(s->color_palette, default_wt_status_colors,
sizeof(default_wt_status_colors));
s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
s->use_color = -1;
s->relative_paths = 1;
s->branch = resolve_refdup("HEAD", sha1, 0, NULL);
s->reference = "HEAD";
s->fp = stdout;
s->index_file = get_index_file();
s->change.strdup_strings = 1;
s->untracked.strdup_strings = 1;
s->ignored.strdup_strings = 1;
}
inline uint32_t LightTable::insert_with_pk(AttrTuple & tuple)
{
// lookup index
int pk_index = mTablefile.mTableHeader.primaryKeyIndex;
const char *pk_attr_name = mTablefile.get_pk_attr_name();
PrimaryIndexFile *idx_file = static_cast<PrimaryIndexFile*>(get_index_file(pk_attr_name));
assert(idx_file != NULL);
if (idx_file->isExist(tuple[pk_index]))
throw exception_t(INSERT_DUPLICATE_TUPLE, "Duplicated tuple");
uint32_t addr = mDatafile.put(tuple);
idx_file->set(tuple[pk_index], addr);
return addr;
}
static void prepare_to_commit(void)
{
struct strbuf msg = STRBUF_INIT;
strbuf_addbuf(&msg, &merge_msg);
strbuf_addch(&msg, '\n');
write_merge_msg(&msg);
run_hook(get_index_file(), "prepare-commit-msg",
git_path("MERGE_MSG"), "merge", NULL, NULL);
if (option_edit) {
if (launch_editor(git_path("MERGE_MSG"), NULL, NULL))
abort_commit(NULL);
}
read_merge_msg(&msg);
stripspace(&msg, option_edit);
if (!msg.len)
abort_commit(_("Empty commit message."));
strbuf_release(&merge_msg);
strbuf_addbuf(&merge_msg, &msg);
strbuf_release(&msg);
}
/*=========================================
* check_index -- Validate one index node of btree
* Created: 2003/09/05, Perry Rapp
*=======================================*/
static BOOLEAN
check_index (BTREE btr, INDEX index, TABLE fkeytab, RKEY * lo, RKEY * hi)
{
INT n = nkeys(index);
INT i;
if (!check_keys((BLOCK)index, lo, hi))
return FALSE;
for (i = 0; i <= n; i++) {
INDEX newix=0;
char scratch[200];
FKEY fkey = fkeys(index, i);
RKEY *lox, *hix;
get_index_file(scratch, btr, fkey);
if (in_table(fkeytab, scratch)) {
printf(_("Cycle in indexes, file %s found again!\n"), scratch);
return FALSE;
} else {
insert_table_int(fkeytab, scratch, 1);
}
newix = readindex(btr, fkey, TRUE);
if (!newix) {
printf(_("Error loading index at key"));
printf("%ld\n", i);
printblock((BLOCK)index);
}
/* figure upper & lower bounds of what keys should be in the child */
lox = (i==0 ? lo : &rkeys(index, i));
hix = (i==n ? hi : &rkeys(index, i+1));
if (ixtype(newix) == BTINDEXTYPE) {
if (!check_index(btr, newix, fkeytab, lox, hix))
return FALSE;
} else {
if (!check_block((BLOCK)newix, lox, hix))
return FALSE;
}
}
/* TODO: use fkeytab */
return TRUE;
}
static void prepare_to_commit(struct commit_list *remoteheads)
{
struct strbuf msg = STRBUF_INIT;
strbuf_addbuf(&msg, &merge_msg);
strbuf_addch(&msg, '\n');
if (0 < option_edit)
strbuf_commented_addf(&msg, _(merge_editor_comment), comment_line_char);
write_file_buf(git_path_merge_msg(), msg.buf, msg.len);
if (run_commit_hook(0 < option_edit, get_index_file(), "prepare-commit-msg",
git_path_merge_msg(), "merge", NULL))
abort_commit(remoteheads, NULL);
if (0 < option_edit) {
if (launch_editor(git_path_merge_msg(), NULL, NULL))
abort_commit(remoteheads, NULL);
}
read_merge_msg(&msg);
strbuf_stripspace(&msg, 0 < option_edit);
if (!msg.len)
abort_commit(remoteheads, _("Empty commit message."));
strbuf_release(&merge_msg);
strbuf_addbuf(&merge_msg, &msg);
strbuf_release(&msg);
}
static void prepare_to_commit(struct commit_list *remoteheads)
{
struct strbuf msg = STRBUF_INIT;
const char *comment = _(merge_editor_comment);
strbuf_addbuf(&msg, &merge_msg);
strbuf_addch(&msg, '\n');
if (0 < option_edit)
strbuf_add_lines(&msg, "# ", comment, strlen(comment));
write_merge_msg(&msg);
if (run_hook(get_index_file(), "prepare-commit-msg",
git_path("MERGE_MSG"), "merge", NULL, NULL))
abort_commit(remoteheads, NULL);
if (0 < option_edit) {
if (launch_editor(git_path("MERGE_MSG"), NULL, NULL))
abort_commit(remoteheads, NULL);
}
read_merge_msg(&msg);
stripspace(&msg, 0 < option_edit);
if (!msg.len)
abort_commit(remoteheads, _("Empty commit message."));
strbuf_release(&merge_msg);
strbuf_addbuf(&merge_msg, &msg);
strbuf_release(&msg);
}
int cmd_commit(int argc, const char **argv, const char *prefix)
{
struct strbuf sb = STRBUF_INIT;
const char *index_file, *reflog_msg;
char *nl, *p;
unsigned char commit_sha1[20];
struct ref_lock *ref_lock;
struct commit_list *parents = NULL, **pptr = &parents;
struct stat statbuf;
int allow_fast_forward = 1;
struct wt_status s;
wt_status_prepare(&s);
git_config(git_commit_config, &s);
in_merge = file_exists(git_path("MERGE_HEAD"));
s.in_merge = in_merge;
if (s.use_color == -1)
s.use_color = git_use_color_default;
argc = parse_and_validate_options(argc, argv, builtin_commit_usage,
prefix, &s);
if (dry_run) {
if (diff_use_color_default == -1)
diff_use_color_default = git_use_color_default;
return dry_run_commit(argc, argv, prefix, &s);
}
index_file = prepare_index(argc, argv, 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, &s)) {
rollback_index_files();
return 1;
}
/* Determine parents */
reflog_msg = getenv("GIT_REFLOG_ACTION");
if (initial_commit) {
if (!reflog_msg)
reflog_msg = "commit (initial)";
} else if (amend) {
struct commit_list *c;
struct commit *commit;
if (!reflog_msg)
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)
pptr = &commit_list_insert(c->item, pptr)->next;
} else if (in_merge) {
struct strbuf m = STRBUF_INIT;
FILE *fp;
if (!reflog_msg)
reflog_msg = "commit (merge)";
pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
fp = fopen(git_path("MERGE_HEAD"), "r");
if (fp == NULL)
die_errno("could not open '%s' for reading",
git_path("MERGE_HEAD"));
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);
pptr = &commit_list_insert(lookup_commit(sha1), pptr)->next;
}
fclose(fp);
strbuf_release(&m);
if (!stat(git_path("MERGE_MODE"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0)
die_errno("could not read MERGE_MODE");
if (!strcmp(sb.buf, "no-ff"))
allow_fast_forward = 0;
}
if (allow_fast_forward)
parents = reduce_heads(parents);
} else {
if (!reflog_msg)
reflog_msg = "commit";
pptr = &commit_list_insert(lookup_commit(head_sha1), pptr)->next;
}
/* Finally, get the commit message */
strbuf_reset(&sb);
if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
int saved_errno = errno;
rollback_index_files();
die("could not read commit message: %s", strerror(saved_errno));
}
/* Truncate the message just before the diff, if any. */
if (verbose) {
p = strstr(sb.buf, "\ndiff --git ");
if (p != NULL)
strbuf_setlen(&sb, p - sb.buf + 1);
}
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, cleanup_mode == CLEANUP_ALL);
if (message_is_empty(&sb) && !allow_empty_message) {
rollback_index_files();
fprintf(stderr, "Aborting commit due to empty commit message.\n");
exit(1);
}
if (commit_tree(sb.buf, active_cache_tree->sha1, parents, commit_sha1,
fmt_ident(author_name, author_email, author_date,
IDENT_ERROR_ON_NO_NAME))) {
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, '\n');
if (nl)
strbuf_setlen(&sb, nl + 1 - sb.buf);
else
strbuf_addch(&sb, '\n');
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("MERGE_MODE"));
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(0);
run_hook(get_index_file(), "post-commit", NULL);
if (amend && !no_post_rewrite) {
struct notes_rewrite_cfg *cfg;
cfg = init_copy_notes_for_rewrite("amend");
if (cfg) {
copy_note_for_rewrite(cfg, head_sha1, commit_sha1);
finish_copy_notes_for_rewrite(cfg);
}
run_rewrite_hook(head_sha1, commit_sha1);
}
if (!quiet)
print_summary(prefix, commit_sha1);
return 0;
}
static char *prepare_index(int argc, const char **argv, const char *prefix)
{
int fd;
struct path_list partial;
const char **pathspec = NULL;
if (interactive) {
interactive_add(argc, argv, prefix);
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(0, also ? prefix : NULL, pathspec);
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_paths = 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()), 1);
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;
}
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);
argc = parse_and_validate_options(argc, argv, builtin_commit_usage);
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();
die("no commit message? aborting commit.");
}
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;
}
int cmd_update_index(int argc, const char **argv, const char *prefix)
{
int newfd, entries, has_errors = 0, line_termination = '\n';
int read_from_stdin = 0;
int prefix_length = prefix ? strlen(prefix) : 0;
int preferred_index_format = 0;
char set_executable_bit = 0;
struct refresh_params refresh_args = {0, &has_errors};
int lock_error = 0;
int split_index = -1;
struct lock_file *lock_file;
struct parse_opt_ctx_t ctx;
int parseopt_state = PARSE_OPT_UNKNOWN;
struct option options[] = {
OPT_BIT('q', NULL, &refresh_args.flags,
N_("continue refresh even when index needs update"),
REFRESH_QUIET),
OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
N_("refresh: ignore submodules"),
REFRESH_IGNORE_SUBMODULES),
OPT_SET_INT(0, "add", &allow_add,
N_("do not ignore new files"), 1),
OPT_SET_INT(0, "replace", &allow_replace,
N_("let files replace directories and vice-versa"), 1),
OPT_SET_INT(0, "remove", &allow_remove,
N_("notice files missing from worktree"), 1),
OPT_BIT(0, "unmerged", &refresh_args.flags,
N_("refresh even if index contains unmerged entries"),
REFRESH_UNMERGED),
{OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
N_("refresh stat information"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
refresh_callback},
{OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
N_("like --refresh, but ignore assume-unchanged setting"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
really_refresh_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
N_("<mode>,<object>,<path>"),
N_("add the specified entry to the index"),
PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
(parse_opt_cb *) cacheinfo_callback},
{OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"),
N_("override the executable bit of the listed files"),
PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
chmod_callback},
{OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL,
N_("mark files as \"not changing\""),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
{OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL,
N_("clear assumed-unchanged bit"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
{OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
N_("mark files as \"index-only\""),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
{OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL,
N_("clear skip-worktree bit"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
OPT_SET_INT(0, "info-only", &info_only,
N_("add to index only; do not add content to object database"), 1),
OPT_SET_INT(0, "force-remove", &force_remove,
N_("remove named paths even if present in worktree"), 1),
OPT_SET_INT('z', NULL, &line_termination,
N_("with --stdin: input lines are terminated by null bytes"), '\0'),
{OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
N_("read list of paths to be updated from standard input"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) stdin_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &line_termination, NULL,
N_("add entries from standard input to the index"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) stdin_cacheinfo_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
N_("repopulate stages #2 and #3 for the listed paths"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) unresolve_callback},
{OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
N_("only update entries that differ from HEAD"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) reupdate_callback},
OPT_BIT(0, "ignore-missing", &refresh_args.flags,
N_("ignore files missing from worktree"),
REFRESH_IGNORE_MISSING),
OPT_SET_INT(0, "verbose", &verbose,
N_("report actions to standard output"), 1),
{OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
N_("(for porcelains) forget saved unresolved conflicts"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
resolve_undo_clear_callback},
OPT_INTEGER(0, "index-version", &preferred_index_format,
N_("write index in this format")),
OPT_BOOL(0, "split-index", &split_index,
N_("enable or disable split index")),
OPT_END()
};
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(update_index_usage, options);
git_config(git_default_config, NULL);
/* We can't free this memory, it becomes part of a linked list parsed atexit() */
lock_file = xcalloc(1, sizeof(struct lock_file));
newfd = hold_locked_index(lock_file, 0);
if (newfd < 0)
lock_error = errno;
entries = read_cache();
if (entries < 0)
die("cache corrupted");
/*
* Custom copy of parse_options() because we want to handle
* filename arguments as they come.
*/
parse_options_start(&ctx, argc, argv, prefix,
options, PARSE_OPT_STOP_AT_NON_OPTION);
while (ctx.argc) {
if (parseopt_state != PARSE_OPT_DONE)
parseopt_state = parse_options_step(&ctx, options,
update_index_usage);
if (!ctx.argc)
break;
switch (parseopt_state) {
case PARSE_OPT_HELP:
exit(129);
case PARSE_OPT_NON_OPTION:
case PARSE_OPT_DONE:
{
const char *path = ctx.argv[0];
const char *p;
setup_work_tree();
p = prefix_path(prefix, prefix_length, path);
update_one(p);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
free((char *)p);
ctx.argc--;
ctx.argv++;
break;
}
case PARSE_OPT_UNKNOWN:
if (ctx.argv[0][1] == '-')
error("unknown option '%s'", ctx.argv[0] + 2);
else
error("unknown switch '%c'", *ctx.opt);
usage_with_options(update_index_usage, options);
}
}
argc = parse_options_end(&ctx);
if (preferred_index_format) {
if (preferred_index_format < INDEX_FORMAT_LB ||
INDEX_FORMAT_UB < preferred_index_format)
die("index-version %d not in range: %d..%d",
preferred_index_format,
INDEX_FORMAT_LB, INDEX_FORMAT_UB);
if (the_index.version != preferred_index_format)
active_cache_changed |= SOMETHING_CHANGED;
the_index.version = preferred_index_format;
}
if (read_from_stdin) {
struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT;
setup_work_tree();
while (strbuf_getline(&buf, stdin, line_termination) != EOF) {
const char *p;
if (line_termination && buf.buf[0] == '"') {
strbuf_reset(&nbuf);
if (unquote_c_style(&nbuf, buf.buf, NULL))
die("line is badly quoted");
strbuf_swap(&buf, &nbuf);
}
p = prefix_path(prefix, prefix_length, buf.buf);
update_one(p);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
free((char *)p);
}
strbuf_release(&nbuf);
strbuf_release(&buf);
}
if (split_index > 0) {
init_split_index(&the_index);
the_index.cache_changed |= SPLIT_INDEX_ORDERED;
} else if (!split_index && the_index.split_index) {
/*
* can't discard_split_index(&the_index); because that
* will destroy split_index->base->cache[], which may
* be shared with the_index.cache[]. So yeah we're
* leaking a bit here.
*/
the_index.split_index = NULL;
the_index.cache_changed |= SOMETHING_CHANGED;
}
if (active_cache_changed) {
if (newfd < 0) {
if (refresh_args.flags & REFRESH_QUIET)
exit(128);
unable_to_lock_die(get_index_file(), lock_error);
}
if (write_locked_index(&the_index, lock_file, COMMIT_LOCK))
die("Unable to write new index file");
}
rollback_lock_file(lock_file);
return has_errors ? 1 : 0;
}
int hold_locked_index(struct lock_file *lk, int die_on_error)
{
return hold_lock_file_for_update(lk, get_index_file(), die_on_error);
}
int cmd_update_index(int argc, const char **argv, const char *prefix)
{
int i, newfd, entries, has_errors = 0, line_termination = '\n';
int allow_options = 1;
int read_from_stdin = 0;
int prefix_length = prefix ? strlen(prefix) : 0;
char set_executable_bit = 0;
unsigned int refresh_flags = 0;
int lock_error = 0;
struct lock_file *lock_file;
git_config(git_default_config, NULL);
/* We can't free this memory, it becomes part of a linked list parsed atexit() */
lock_file = xcalloc(1, sizeof(struct lock_file));
newfd = hold_locked_index(lock_file, 0);
if (newfd < 0)
lock_error = errno;
entries = read_cache();
if (entries < 0)
die("cache corrupted");
for (i = 1 ; i < argc; i++) {
const char *path = argv[i];
const char *p;
if (allow_options && *path == '-') {
if (!strcmp(path, "--")) {
allow_options = 0;
continue;
}
if (!strcmp(path, "-q")) {
refresh_flags |= REFRESH_QUIET;
continue;
}
if (!strcmp(path, "--ignore-submodules")) {
refresh_flags |= REFRESH_IGNORE_SUBMODULES;
continue;
}
if (!strcmp(path, "--add")) {
allow_add = 1;
continue;
}
if (!strcmp(path, "--replace")) {
allow_replace = 1;
continue;
}
if (!strcmp(path, "--remove")) {
allow_remove = 1;
continue;
}
if (!strcmp(path, "--unmerged")) {
refresh_flags |= REFRESH_UNMERGED;
continue;
}
if (!strcmp(path, "--refresh")) {
setup_work_tree();
has_errors |= refresh_cache(refresh_flags);
continue;
}
if (!strcmp(path, "--really-refresh")) {
setup_work_tree();
has_errors |= refresh_cache(REFRESH_REALLY | refresh_flags);
continue;
}
if (!strcmp(path, "--cacheinfo")) {
unsigned char sha1[20];
unsigned int mode;
if (i+3 >= argc)
die("git update-index: --cacheinfo <mode> <sha1> <path>");
if (strtoul_ui(argv[i+1], 8, &mode) ||
get_sha1_hex(argv[i+2], sha1) ||
add_cacheinfo(mode, sha1, argv[i+3], 0))
die("git update-index: --cacheinfo"
" cannot add %s", argv[i+3]);
i += 3;
continue;
}
if (!strcmp(path, "--chmod=-x") ||
!strcmp(path, "--chmod=+x")) {
if (argc <= i+1)
die("git update-index: %s <path>", path);
set_executable_bit = path[8];
continue;
}
if (!strcmp(path, "--assume-unchanged")) {
mark_valid_only = MARK_VALID;
continue;
}
if (!strcmp(path, "--no-assume-unchanged")) {
mark_valid_only = UNMARK_VALID;
continue;
}
if (!strcmp(path, "--info-only")) {
info_only = 1;
continue;
}
if (!strcmp(path, "--force-remove")) {
force_remove = 1;
continue;
}
if (!strcmp(path, "-z")) {
line_termination = 0;
continue;
}
if (!strcmp(path, "--stdin")) {
if (i != argc - 1)
die("--stdin must be at the end");
read_from_stdin = 1;
break;
}
if (!strcmp(path, "--index-info")) {
if (i != argc - 1)
die("--index-info must be at the end");
allow_add = allow_replace = allow_remove = 1;
read_index_info(line_termination);
break;
}
if (!strcmp(path, "--unresolve")) {
has_errors = do_unresolve(argc - i, argv + i,
prefix, prefix_length);
if (has_errors)
active_cache_changed = 0;
goto finish;
}
if (!strcmp(path, "--again") || !strcmp(path, "-g")) {
setup_work_tree();
has_errors = do_reupdate(argc - i, argv + i,
prefix, prefix_length);
if (has_errors)
active_cache_changed = 0;
goto finish;
}
if (!strcmp(path, "--ignore-missing")) {
refresh_flags |= REFRESH_IGNORE_MISSING;
continue;
}
if (!strcmp(path, "--verbose")) {
verbose = 1;
continue;
}
if (!strcmp(path, "-h") || !strcmp(path, "--help"))
usage(update_index_usage);
die("unknown option %s", path);
}
setup_work_tree();
p = prefix_path(prefix, prefix_length, path);
update_one(p, NULL, 0);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
if (p < path || p > path + strlen(path))
free((char*)p);
}
if (read_from_stdin) {
struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT;
setup_work_tree();
while (strbuf_getline(&buf, stdin, line_termination) != EOF) {
const char *p;
if (line_termination && buf.buf[0] == '"') {
strbuf_reset(&nbuf);
if (unquote_c_style(&nbuf, buf.buf, NULL))
die("line is badly quoted");
strbuf_swap(&buf, &nbuf);
}
p = prefix_path(prefix, prefix_length, buf.buf);
update_one(p, NULL, 0);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
if (p < buf.buf || p > buf.buf + buf.len)
free((char *)p);
}
strbuf_release(&nbuf);
strbuf_release(&buf);
}
finish:
if (active_cache_changed) {
if (newfd < 0) {
if (refresh_flags & REFRESH_QUIET)
exit(128);
unable_to_lock_index_die(get_index_file(), lock_error);
}
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(lock_file))
die("Unable to write new index file");
}
rollback_lock_file(lock_file);
return has_errors ? 1 : 0;
}
int cmd_merge_recursive(int argc, const char **argv, const char *prefix)
{
static const char *bases[20];
static unsigned bases_count = 0;
int i, clean;
const char *branch1, *branch2;
struct commit *result, *h1, *h2;
struct commit_list *ca = NULL;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
int index_fd;
if (argv[0]) {
int namelen = strlen(argv[0]);
if (8 < namelen &&
!strcmp(argv[0] + namelen - 8, "-subtree"))
subtree_merge = 1;
}
git_config(merge_config, NULL);
if (getenv("GIT_MERGE_VERBOSITY"))
verbosity = strtol(getenv("GIT_MERGE_VERBOSITY"), NULL, 10);
if (argc < 4)
die("Usage: %s <base>... -- <head> <remote> ...\n", argv[0]);
for (i = 1; i < argc; ++i) {
if (!strcmp(argv[i], "--"))
break;
if (bases_count < sizeof(bases)/sizeof(*bases))
bases[bases_count++] = argv[i];
}
if (argc - i != 3) /* "--" "<head>" "<remote>" */
die("Not handling anything other than two heads merge.");
if (verbosity >= 5)
buffer_output = 0;
branch1 = argv[++i];
branch2 = argv[++i];
h1 = get_ref(branch1);
h2 = get_ref(branch2);
branch1 = better_branch_name(branch1);
branch2 = better_branch_name(branch2);
if (show(3))
printf("Merging %s with %s\n", branch1, branch2);
index_fd = hold_locked_index(lock, 1);
for (i = 0; i < bases_count; i++) {
struct commit *ancestor = get_ref(bases[i]);
ca = commit_list_insert(ancestor, &ca);
}
clean = merge_recursive(h1, h2, branch1, branch2, ca, &result);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(lock)))
die ("unable to write %s", get_index_file());
return clean ? 0: 1;
}
int cmd_stash(int argc, const char **argv, const char *prefix)
{
int i = -1;
pid_t pid = getpid();
const char *index_file;
struct argv_array args = ARGV_ARRAY_INIT;
struct option options[] = {
OPT_END()
};
if (!use_builtin_stash()) {
const char *path = mkpath("%s/git-legacy-stash",
git_exec_path());
if (sane_execvp(path, (char **)argv) < 0)
die_errno(_("could not exec %s"), path);
else
BUG("sane_execvp() returned???");
}
prefix = setup_git_directory();
trace_repo_setup(prefix);
setup_work_tree();
git_config(git_diff_basic_config, NULL);
argc = parse_options(argc, argv, prefix, options, git_stash_usage,
PARSE_OPT_KEEP_UNKNOWN | PARSE_OPT_KEEP_DASHDASH);
index_file = get_index_file();
strbuf_addf(&stash_index_path, "%s.stash.%" PRIuMAX, index_file,
(uintmax_t)pid);
if (!argc)
return !!push_stash(0, NULL, prefix);
else if (!strcmp(argv[0], "apply"))
return !!apply_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "clear"))
return !!clear_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "drop"))
return !!drop_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "pop"))
return !!pop_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "branch"))
return !!branch_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "list"))
return !!list_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "show"))
return !!show_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "store"))
return !!store_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "create"))
return !!create_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "push"))
return !!push_stash(argc, argv, prefix);
else if (!strcmp(argv[0], "save"))
return !!save_stash(argc, argv, prefix);
else if (*argv[0] != '-')
usage_msg_opt(xstrfmt(_("unknown subcommand: %s"), argv[0]),
git_stash_usage, options);
if (strcmp(argv[0], "-p")) {
while (++i < argc && strcmp(argv[i], "--")) {
/*
* `akpqu` is a string which contains all short options,
* except `-m` which is verified separately.
*/
if ((strlen(argv[i]) == 2) && *argv[i] == '-' &&
strchr("akpqu", argv[i][1]))
continue;
if (!strcmp(argv[i], "--all") ||
!strcmp(argv[i], "--keep-index") ||
!strcmp(argv[i], "--no-keep-index") ||
!strcmp(argv[i], "--patch") ||
!strcmp(argv[i], "--quiet") ||
!strcmp(argv[i], "--include-untracked"))
continue;
/*
* `-m` and `--message=` are verified separately because
* they need to be immediately followed by a string
* (i.e.`-m"foobar"` or `--message="foobar"`).
*/
if (starts_with(argv[i], "-m") ||
starts_with(argv[i], "--message="))
continue;
usage_with_options(git_stash_usage, options);
}
}
argv_array_push(&args, "push");
argv_array_pushv(&args, argv);
return !!push_stash(args.argc, args.argv, prefix);
}
/*
* Skip merging the trees, updating the index and working directory if and
* only if we are creating a new branch via "git checkout -b <new_branch>."
*/
static int skip_merge_working_tree(const struct checkout_opts *opts,
const struct branch_info *old_branch_info,
const struct branch_info *new_branch_info)
{
/*
* Do the merge if sparse checkout is on and the user has not opted in
* to the optimized behavior
*/
if (core_apply_sparse_checkout && !checkout_optimize_new_branch)
return 0;
/*
* We must do the merge if we are actually moving to a new commit.
*/
if (!old_branch_info->commit || !new_branch_info->commit ||
!oideq(&old_branch_info->commit->object.oid,
&new_branch_info->commit->object.oid))
return 0;
/*
* opts->patch_mode cannot be used with switching branches so is
* not tested here
*/
/*
* opts->quiet only impacts output so doesn't require a merge
*/
/*
* Honor the explicit request for a three-way merge or to throw away
* local changes
*/
if (opts->merge || opts->force)
return 0;
/*
* --detach is documented as "updating the index and the files in the
* working tree" but this optimization skips those steps so fall through
* to the regular code path.
*/
if (opts->force_detach)
return 0;
/*
* opts->writeout_stage cannot be used with switching branches so is
* not tested here
*/
/*
* Honor the explicit ignore requests
*/
if (!opts->overwrite_ignore || opts->ignore_skipworktree ||
opts->ignore_other_worktrees)
return 0;
/*
* opts->show_progress only impacts output so doesn't require a merge
*/
/*
* opts->overlay_mode cannot be used with switching branches so is
* not tested here
*/
/*
* If we aren't creating a new branch any changes or updates will
* happen in the existing branch. Since that could only be updating
* the index and working directory, we don't want to skip those steps
* or we've defeated any purpose in running the command.
*/
if (!opts->new_branch)
return 0;
/*
* new_branch_force is defined to "create/reset and checkout a branch"
* so needs to go through the merge to do the reset
*/
if (opts->new_branch_force)
return 0;
/*
* A new orphaned branch requrires the index and the working tree to be
* adjusted to <start_point>
*/
if (opts->new_orphan_branch)
return 0;
/*
* Remaining variables are not checkout options but used to track state
*/
/*
* Do the merge if this is the initial checkout. We cannot use
* is_cache_unborn() here because the index hasn't been loaded yet
* so cache_nr and timestamp.sec are always zero.
*/
if (!file_exists(get_index_file()))
return 0;
return 1;
}
static int try_merge_strategy(const char *strategy, struct commit_list *common,
const char *head_arg)
{
const char **args;
int i = 0, ret;
struct commit_list *j;
struct strbuf buf = STRBUF_INIT;
int index_fd;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
index_fd = hold_locked_index(lock, 1);
refresh_cache(REFRESH_QUIET);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(lock)))
return error("Unable to write index.");
rollback_lock_file(lock);
if (!strcmp(strategy, "recursive") || !strcmp(strategy, "subtree")) {
int clean;
struct commit *result;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
int index_fd;
struct commit_list *reversed = NULL;
struct merge_options o;
if (remoteheads->next) {
error("Not handling anything other than two heads merge.");
return 2;
}
init_merge_options(&o);
if (!strcmp(strategy, "subtree"))
o.subtree_merge = 1;
o.branch1 = head_arg;
o.branch2 = remoteheads->item->util;
for (j = common; j; j = j->next)
commit_list_insert(j->item, &reversed);
index_fd = hold_locked_index(lock, 1);
clean = merge_recursive(&o, lookup_commit(head),
remoteheads->item, reversed, &result);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(lock)))
die ("unable to write %s", get_index_file());
rollback_lock_file(lock);
return clean ? 0 : 1;
} else {
args = xmalloc((4 + commit_list_count(common) +
commit_list_count(remoteheads)) * sizeof(char *));
strbuf_addf(&buf, "merge-%s", strategy);
args[i++] = buf.buf;
for (j = common; j; j = j->next)
args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
args[i++] = "--";
args[i++] = head_arg;
for (j = remoteheads; j; j = j->next)
args[i++] = xstrdup(sha1_to_hex(j->item->object.sha1));
args[i] = NULL;
ret = run_command_v_opt(args, RUN_GIT_CMD);
strbuf_release(&buf);
i = 1;
for (j = common; j; j = j->next)
free((void *)args[i++]);
i += 2;
for (j = remoteheads; j; j = j->next)
free((void *)args[i++]);
free(args);
discard_cache();
if (read_cache() < 0)
die("failed to read the cache");
return ret;
}
}
void read_request ( struct process* process )
{
int sock = process->sock, s;
char* buf=process->buf;
char read_complete = 0;
ssize_t count;
while ( 1 )
{
count = read ( sock, buf + process->read_pos, BUF_SIZE - process->read_pos );
if ( count == -1 )
{
if ( errno != EAGAIN )
{
handle_error ( process, "read request" );
return;
}
else
{
//errno == EAGAIN表示读取完毕
break;
}
}
else if ( count == 0 )
{
// 被客户端关闭连接
cleanup ( process );
return;
}
else if ( count > 0 )
{
process->read_pos += count;
}
}
int header_length = process->read_pos;
// determine whether the request is complete
if ( header_length > BUF_SIZE - 1 )
{
process->response_code = 400;
process->status = STATUS_SEND_RESPONSE_HEADER;
strcpy ( process->buf, header_400 );
send_response_header ( process );
handle_error ( processes, "bad request" );
return;
}
buf[header_length]=0;
read_complete = ( strstr ( buf, "\n\n" ) != 0 ) || ( strstr ( buf, "\r\n\r\n" ) != 0 );
int error = 0;
if ( read_complete )
{
//重置读取位置
reset_process ( process );
// get GET info
if ( !strncmp ( buf, "GET", 3 ) == 0 )
{
process->response_code = 400;
process->status = STATUS_SEND_RESPONSE_HEADER;
strcpy ( process->buf, header_400 );
send_response_header ( process );
handle_error ( processes, "bad request" );
return;
}
// get first line
int n_loc = ( int ) strchr ( buf, '\n' );
int space_loc = ( int ) strchr ( buf + 4, ' ' );
if ( n_loc <= space_loc )
{
process->response_code = 400;
process->status = STATUS_SEND_RESPONSE_HEADER;
strcpy ( process->buf, header_400 );
send_response_header ( process );
handle_error ( processes, "bad request" );
return;
}
char path[255];
int len = space_loc - ( int ) buf - 4;
if ( len > MAX_URL_LENGTH )
{
process->response_code = 400;
process->status = STATUS_SEND_RESPONSE_HEADER;
strcpy ( process->buf, header_400 );
send_response_header ( process );
handle_error ( processes, "bad request" );
return;
}
buf[header_length] = 0;
strncpy ( path, buf+4, len );
path[len] = 0;
struct stat filestat;
char fullname[256];
char *prefix = doc_root;
strcpy ( fullname, prefix );
strcpy ( fullname + strlen ( prefix ), path );
s = get_index_file ( fullname, &filestat);
if ( s == -1 )
{
process->response_code = 404;
process->status = STATUS_SEND_RESPONSE_HEADER;
strcpy ( process->buf, header_404 );
send_response_header ( process );
handle_error ( processes, "not found" );
return;
}
int fd = open ( fullname, O_RDONLY );
process->fd = fd;
if ( fd<0 )
{
process->response_code = 404;
process->status = STATUS_SEND_RESPONSE_HEADER;
strcpy ( process->buf, header_404 );
send_response_header ( process );
handle_error ( processes, "not found" );
return;
}
else
{
process->response_code = 200;
}
char tempstring[256];
//检查有无If-Modified-Since，返回304
char* c = strstr ( buf, HEADER_IF_MODIFIED_SINCE );
if(c!=0){
char* rn = strchr(c, '\r');
if(rn==0){
rn = strchr(c, '\n');
if(rn==0){
process->response_code = 400;
process->status = STATUS_SEND_RESPONSE_HEADER;
strcpy ( process->buf, header_400 );
send_response_header ( process );
handle_error ( processes, "bad request" );
return;
}
}
int time_len = rn - c - sizeof(HEADER_IF_MODIFIED_SINCE) + 1;
strncpy(tempstring, c + sizeof(HEADER_IF_MODIFIED_SINCE) - 1,time_len);
tempstring[time_len]=0;
{
struct tm tm;
time_t t;
strptime(tempstring, RFC1123_DATE_FMT, &tm);
tzset();
t=mktime(&tm);
t-=timezone;
gmtime_r(&t, &tm);
if(t >= filestat.st_mtime){
process->response_code = 304;
}
}
}
//开始header
process->buf[0] = 0;
if(process->response_code == 304){
write_to_header ( header_304_start );
} else {
write_to_header ( header_200_start );
}
process->total_length = filestat.st_size;
{
//写入当前时间
struct tm *tm;
time_t tmt;
tmt = time ( NULL );
tm = gmtime ( &tmt );
strftime ( tempstring, sizeof ( tempstring ), RFC1123_DATE_FMT, tm );
write_to_header ( "Date: " );
write_to_header ( tempstring );
write_to_header ( "\r\n" );
//写入文件修改时间
tm = gmtime ( &filestat.st_mtime );
strftime ( tempstring, sizeof ( tempstring ), RFC1123_DATE_FMT, tm );
write_to_header ( "Last-modified: " );
write_to_header ( tempstring );
write_to_header ( "\r\n" );
if(process->response_code == 200){
//写入content长度
sprintf ( tempstring, "Content-Length: %ld\r\n", filestat.st_size );
write_to_header ( tempstring );
}
}
//结束header
write_to_header ( header_end );
process->status = STATUS_SEND_RESPONSE_HEADER;
//修改此sock的监听状态，改为监视写状态
event.data.fd = process->sock;
event.events = EPOLLOUT | EPOLLET;
s = epoll_ctl ( efd, EPOLL_CTL_MOD, process->sock, &event );
if ( s == -1 )
{
perror ( "epoll_ctl" );
abort ();
}
//发送header
send_response_header ( process );
}
}
int cmd_commit(int argc, const char **argv, const char *prefix)
{
static struct wt_status s;
static struct option builtin_commit_options[] = {
OPT__QUIET(&quiet, N_("suppress summary after successful commit")),
OPT__VERBOSE(&verbose, N_("show diff in commit message template")),
OPT_GROUP(N_("Commit message options")),
OPT_FILENAME('F', "file", &logfile, N_("read message from file")),
OPT_STRING(0, "author", &force_author, N_("author"), N_("override author for commit")),
OPT_STRING(0, "date", &force_date, N_("date"), N_("override date for commit")),
OPT_CALLBACK('m', "message", &message, N_("message"), N_("commit message"), opt_parse_m),
OPT_STRING('c', "reedit-message", &edit_message, N_("commit"), N_("reuse and edit message from specified commit")),
OPT_STRING('C', "reuse-message", &use_message, N_("commit"), N_("reuse message from specified commit")),
OPT_STRING(0, "fixup", &fixup_message, N_("commit"), N_("use autosquash formatted message to fixup specified commit")),
OPT_STRING(0, "squash", &squash_message, N_("commit"), N_("use autosquash formatted message to squash specified commit")),
OPT_BOOL(0, "reset-author", &renew_authorship, N_("the commit is authored by me now (used with -C/-c/--amend)")),
OPT_BOOL('s', "signoff", &signoff, N_("add Signed-off-by:")),
OPT_FILENAME('t', "template", &template_file, N_("use specified template file")),
OPT_BOOL('e', "edit", &edit_flag, N_("force edit of commit")),
OPT_STRING(0, "cleanup", &cleanup_arg, N_("default"), N_("how to strip spaces and #comments from message")),
OPT_BOOL(0, "status", &include_status, N_("include status in commit message template")),
{ OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key id"),
N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
/* end commit message options */
OPT_GROUP(N_("Commit contents options")),
OPT_BOOL('a', "all", &all, N_("commit all changed files")),
OPT_BOOL('i', "include", &also, N_("add specified files to index for commit")),
OPT_BOOL(0, "interactive", &interactive, N_("interactively add files")),
OPT_BOOL('p', "patch", &patch_interactive, N_("interactively add changes")),
OPT_BOOL('o', "only", &only, N_("commit only specified files")),
OPT_BOOL('n', "no-verify", &no_verify, N_("bypass pre-commit hook")),
OPT_BOOL(0, "dry-run", &dry_run, N_("show what would be committed")),
OPT_SET_INT(0, "short", &status_format, N_("show status concisely"),
STATUS_FORMAT_SHORT),
OPT_BOOL(0, "branch", &s.show_branch, N_("show branch information")),
OPT_SET_INT(0, "porcelain", &status_format,
N_("machine-readable output"), STATUS_FORMAT_PORCELAIN),
OPT_SET_INT(0, "long", &status_format,
N_("show status in long format (default)"),
STATUS_FORMAT_LONG),
OPT_BOOL('z', "null", &s.null_termination,
N_("terminate entries with NUL")),
OPT_BOOL(0, "amend", &amend, N_("amend previous commit")),
OPT_BOOL(0, "no-post-rewrite", &no_post_rewrite, N_("bypass post-rewrite hook")),
{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, N_("mode"), N_("show untracked files, optional modes: all, normal, no. (Default: all)"), PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
/* end commit contents options */
OPT_HIDDEN_BOOL(0, "allow-empty", &allow_empty,
N_("ok to record an empty change")),
OPT_HIDDEN_BOOL(0, "allow-empty-message", &allow_empty_message,
N_("ok to record a change with an empty message")),
OPT_END()
};
struct strbuf sb = STRBUF_INIT;
struct strbuf author_ident = STRBUF_INIT;
const char *index_file, *reflog_msg;
char *nl;
unsigned char sha1[20];
struct ref_lock *ref_lock;
struct commit_list *parents = NULL, **pptr = &parents;
struct stat statbuf;
struct commit *current_head = NULL;
struct commit_extra_header *extra = NULL;
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(builtin_commit_usage, builtin_commit_options);
status_init_config(&s, git_commit_config);
status_format = STATUS_FORMAT_NONE; /* Ignore status.short */
s.colopts = 0;
if (get_sha1("HEAD", sha1))
current_head = NULL;
else {
current_head = lookup_commit_or_die(sha1, "HEAD");
if (parse_commit(current_head))
die(_("could not parse HEAD commit"));
}
argc = parse_and_validate_options(argc, argv, builtin_commit_options,
builtin_commit_usage,
prefix, current_head, &s);
if (dry_run)
return dry_run_commit(argc, argv, prefix, current_head, &s);
index_file = prepare_index(argc, argv, prefix, current_head, 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,
current_head, &s, &author_ident)) {
rollback_index_files();
return 1;
}
/* Determine parents */
reflog_msg = getenv("GIT_REFLOG_ACTION");
if (!current_head) {
if (!reflog_msg)
reflog_msg = "commit (initial)";
} else if (amend) {
struct commit_list *c;
if (!reflog_msg)
reflog_msg = "commit (amend)";
for (c = current_head->parents; c; c = c->next)
pptr = &commit_list_insert(c->item, pptr)->next;
} else if (whence == FROM_MERGE) {
struct strbuf m = STRBUF_INIT;
FILE *fp;
int allow_fast_forward = 1;
if (!reflog_msg)
reflog_msg = "commit (merge)";
pptr = &commit_list_insert(current_head, pptr)->next;
fp = fopen(git_path("MERGE_HEAD"), "r");
if (fp == NULL)
die_errno(_("could not open '%s' for reading"),
git_path("MERGE_HEAD"));
while (strbuf_getline(&m, fp, '\n') != EOF) {
struct commit *parent;
parent = get_merge_parent(m.buf);
if (!parent)
die(_("Corrupt MERGE_HEAD file (%s)"), m.buf);
pptr = &commit_list_insert(parent, pptr)->next;
}
fclose(fp);
strbuf_release(&m);
if (!stat(git_path("MERGE_MODE"), &statbuf)) {
if (strbuf_read_file(&sb, git_path("MERGE_MODE"), 0) < 0)
die_errno(_("could not read MERGE_MODE"));
if (!strcmp(sb.buf, "no-ff"))
allow_fast_forward = 0;
}
if (allow_fast_forward)
parents = reduce_heads(parents);
} else {
if (!reflog_msg)
reflog_msg = (whence == FROM_CHERRY_PICK)
? "commit (cherry-pick)"
: "commit";
pptr = &commit_list_insert(current_head, pptr)->next;
}
/* Finally, get the commit message */
strbuf_reset(&sb);
if (strbuf_read_file(&sb, git_path(commit_editmsg), 0) < 0) {
int saved_errno = errno;
rollback_index_files();
die(_("could not read commit message: %s"), strerror(saved_errno));
}
/* Truncate the message just before the diff, if any. */
if (verbose)
wt_status_truncate_message_at_cut_line(&sb);
if (cleanup_mode != CLEANUP_NONE)
stripspace(&sb, cleanup_mode == CLEANUP_ALL);
if (template_untouched(&sb) && !allow_empty_message) {
rollback_index_files();
fprintf(stderr, _("Aborting commit; you did not edit the message.\n"));
exit(1);
}
if (message_is_empty(&sb) && !allow_empty_message) {
rollback_index_files();
fprintf(stderr, _("Aborting commit due to empty commit message.\n"));
exit(1);
}
if (amend) {
const char *exclude_gpgsig[2] = { "gpgsig", NULL };
extra = read_commit_extra_headers(current_head, exclude_gpgsig);
} else {
struct commit_extra_header **tail = &extra;
append_merge_tag_headers(parents, &tail);
}
if (commit_tree_extended(&sb, active_cache_tree->sha1, parents, sha1,
author_ident.buf, sign_commit, extra)) {
rollback_index_files();
die(_("failed to write commit object"));
}
strbuf_release(&author_ident);
free_commit_extra_headers(extra);
ref_lock = lock_any_ref_for_update("HEAD",
!current_head
? NULL
: current_head->object.sha1,
0, NULL);
nl = strchr(sb.buf, '\n');
if (nl)
strbuf_setlen(&sb, nl + 1 - sb.buf);
else
strbuf_addch(&sb, '\n');
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, sha1, sb.buf) < 0) {
rollback_index_files();
die(_("cannot update HEAD ref"));
}
unlink(git_path("CHERRY_PICK_HEAD"));
unlink(git_path("REVERT_HEAD"));
unlink(git_path("MERGE_HEAD"));
unlink(git_path("MERGE_MSG"));
unlink(git_path("MERGE_MODE"));
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(0);
run_hook(get_index_file(), "post-commit", NULL);
if (amend && !no_post_rewrite) {
struct notes_rewrite_cfg *cfg;
cfg = init_copy_notes_for_rewrite("amend");
if (cfg) {
/* we are amending, so current_head is not NULL */
copy_note_for_rewrite(cfg, current_head->object.sha1, sha1);
finish_copy_notes_for_rewrite(cfg, "Notes added by 'git commit --amend'");
}
run_rewrite_hook(current_head->object.sha1, sha1);
}
if (!quiet)
print_summary(prefix, sha1, !current_head);
return 0;
}
int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix)
{
return write_index_as_tree(sha1, &the_index, get_index_file(), flags, prefix);
}
static char *prepare_index(int argc, const char **argv, const char *prefix,
const struct commit *current_head, int is_status)
{
int fd;
struct string_list partial;
struct pathspec pathspec;
int refresh_flags = REFRESH_QUIET;
if (is_status)
refresh_flags |= REFRESH_UNMERGED;
parse_pathspec(&pathspec, 0,
PATHSPEC_PREFER_FULL,
prefix, argv);
if (read_cache_preload(&pathspec) < 0)
die(_("index file corrupt"));
if (interactive) {
char *old_index_env = NULL;
fd = hold_locked_index(&index_lock, 1);
refresh_cache_or_die(refresh_flags);
if (write_cache(fd, active_cache, active_nr) ||
close_lock_file(&index_lock))
die(_("unable to create temporary index"));
old_index_env = getenv(INDEX_ENVIRONMENT);
setenv(INDEX_ENVIRONMENT, index_lock.filename, 1);
if (interactive_add(argc, argv, prefix, patch_interactive) != 0)
die(_("interactive add failed"));
if (old_index_env && *old_index_env)
setenv(INDEX_ENVIRONMENT, old_index_env, 1);
else
unsetenv(INDEX_ENVIRONMENT);
discard_cache();
read_cache_from(index_lock.filename);
commit_style = COMMIT_NORMAL;
return index_lock.filename;
}
/*
* 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.nr)) {
fd = hold_locked_index(&index_lock, 1);
add_files_to_cache(also ? prefix : NULL, &pathspec, 0);
refresh_cache_or_die(refresh_flags);
update_main_cache_tree(WRITE_TREE_SILENT);
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 create commit from the_index.
* We still need to refresh the index here.
*/
if (!only && !pathspec.nr) {
fd = hold_locked_index(&index_lock, 1);
refresh_cache_or_die(refresh_flags);
if (active_cache_changed) {
update_main_cache_tree(WRITE_TREE_SILENT);
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(&index_lock))
die(_("unable to write new_index file"));
} else {
rollback_lock_file(&index_lock);
}
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 (whence != FROM_COMMIT) {
if (whence == FROM_MERGE)
die(_("cannot do a partial commit during a merge."));
else if (whence == FROM_CHERRY_PICK)
die(_("cannot do a partial commit during a cherry-pick."));
}
memset(&partial, 0, sizeof(partial));
partial.strdup_strings = 1;
if (list_paths(&partial, !current_head ? 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-%"PRIuMAX,
(uintmax_t) getpid()),
LOCK_DIE_ON_ERROR);
create_base_index(current_head);
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;
}
int cmd_update_index(int argc, const char **argv, const char *prefix)
{
int newfd, entries, has_errors = 0, nul_term_line = 0;
enum uc_mode untracked_cache = UC_UNSPECIFIED;
int read_from_stdin = 0;
int prefix_length = prefix ? strlen(prefix) : 0;
int preferred_index_format = 0;
char set_executable_bit = 0;
struct refresh_params refresh_args = {0, &has_errors};
int lock_error = 0;
int split_index = -1;
int force_write = 0;
int fsmonitor = -1;
struct lock_file lock_file = LOCK_INIT;
struct parse_opt_ctx_t ctx;
strbuf_getline_fn getline_fn;
int parseopt_state = PARSE_OPT_UNKNOWN;
struct option options[] = {
OPT_BIT('q', NULL, &refresh_args.flags,
N_("continue refresh even when index needs update"),
REFRESH_QUIET),
OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
N_("refresh: ignore submodules"),
REFRESH_IGNORE_SUBMODULES),
OPT_SET_INT(0, "add", &allow_add,
N_("do not ignore new files"), 1),
OPT_SET_INT(0, "replace", &allow_replace,
N_("let files replace directories and vice-versa"), 1),
OPT_SET_INT(0, "remove", &allow_remove,
N_("notice files missing from worktree"), 1),
OPT_BIT(0, "unmerged", &refresh_args.flags,
N_("refresh even if index contains unmerged entries"),
REFRESH_UNMERGED),
{OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
N_("refresh stat information"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
refresh_callback},
{OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
N_("like --refresh, but ignore assume-unchanged setting"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
really_refresh_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
N_("<mode>,<object>,<path>"),
N_("add the specified entry to the index"),
PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */
PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP,
(parse_opt_cb *) cacheinfo_callback},
{OPTION_CALLBACK, 0, "chmod", &set_executable_bit, "(+|-)x",
N_("override the executable bit of the listed files"),
PARSE_OPT_NONEG,
chmod_callback},
{OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL,
N_("mark files as \"not changing\""),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
{OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL,
N_("clear assumed-unchanged bit"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
{OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
N_("mark files as \"index-only\""),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
{OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL,
N_("clear skip-worktree bit"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
OPT_SET_INT(0, "info-only", &info_only,
N_("add to index only; do not add content to object database"), 1),
OPT_SET_INT(0, "force-remove", &force_remove,
N_("remove named paths even if present in worktree"), 1),
OPT_BOOL('z', NULL, &nul_term_line,
N_("with --stdin: input lines are terminated by null bytes")),
{OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
N_("read list of paths to be updated from standard input"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) stdin_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &nul_term_line, NULL,
N_("add entries from standard input to the index"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) stdin_cacheinfo_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL,
N_("repopulate stages #2 and #3 for the listed paths"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) unresolve_callback},
{OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL,
N_("only update entries that differ from HEAD"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG,
(parse_opt_cb *) reupdate_callback},
OPT_BIT(0, "ignore-missing", &refresh_args.flags,
N_("ignore files missing from worktree"),
REFRESH_IGNORE_MISSING),
OPT_SET_INT(0, "verbose", &verbose,
N_("report actions to standard output"), 1),
{OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
N_("(for porcelains) forget saved unresolved conflicts"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
resolve_undo_clear_callback},
OPT_INTEGER(0, "index-version", &preferred_index_format,
N_("write index in this format")),
OPT_BOOL(0, "split-index", &split_index,
N_("enable or disable split index")),
OPT_BOOL(0, "untracked-cache", &untracked_cache,
N_("enable/disable untracked cache")),
OPT_SET_INT(0, "test-untracked-cache", &untracked_cache,
N_("test if the filesystem supports untracked cache"), UC_TEST),
OPT_SET_INT(0, "force-untracked-cache", &untracked_cache,
N_("enable untracked cache without testing the filesystem"), UC_FORCE),
OPT_SET_INT(0, "force-write-index", &force_write,
N_("write out the index even if is not flagged as changed"), 1),
OPT_BOOL(0, "fsmonitor", &fsmonitor,
N_("enable or disable file system monitor")),
{OPTION_SET_INT, 0, "fsmonitor-valid", &mark_fsmonitor_only, NULL,
N_("mark files as fsmonitor valid"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG},
{OPTION_SET_INT, 0, "no-fsmonitor-valid", &mark_fsmonitor_only, NULL,
N_("clear fsmonitor valid bit"),
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
OPT_END()
};
if (argc == 2 && !strcmp(argv[1], "-h"))
usage_with_options(update_index_usage, options);
git_config(git_default_config, NULL);
/* we will diagnose later if it turns out that we need to update it */
newfd = hold_locked_index(&lock_file, 0);
if (newfd < 0)
lock_error = errno;
entries = read_cache();
if (entries < 0)
die("cache corrupted");
/*
* Custom copy of parse_options() because we want to handle
* filename arguments as they come.
*/
parse_options_start(&ctx, argc, argv, prefix,
options, PARSE_OPT_STOP_AT_NON_OPTION);
while (ctx.argc) {
if (parseopt_state != PARSE_OPT_DONE)
parseopt_state = parse_options_step(&ctx, options,
update_index_usage);
if (!ctx.argc)
break;
switch (parseopt_state) {
case PARSE_OPT_HELP:
case PARSE_OPT_ERROR:
exit(129);
case PARSE_OPT_NON_OPTION:
case PARSE_OPT_DONE:
{
const char *path = ctx.argv[0];
char *p;
setup_work_tree();
p = prefix_path(prefix, prefix_length, path);
update_one(p);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
free(p);
ctx.argc--;
ctx.argv++;
break;
}
case PARSE_OPT_UNKNOWN:
if (ctx.argv[0][1] == '-')
error("unknown option '%s'", ctx.argv[0] + 2);
else
error("unknown switch '%c'", *ctx.opt);
usage_with_options(update_index_usage, options);
}
}
argc = parse_options_end(&ctx);
getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
if (preferred_index_format) {
if (preferred_index_format < INDEX_FORMAT_LB ||
INDEX_FORMAT_UB < preferred_index_format)
die("index-version %d not in range: %d..%d",
preferred_index_format,
INDEX_FORMAT_LB, INDEX_FORMAT_UB);
if (the_index.version != preferred_index_format)
active_cache_changed |= SOMETHING_CHANGED;
the_index.version = preferred_index_format;
}
if (read_from_stdin) {
struct strbuf buf = STRBUF_INIT;
struct strbuf unquoted = STRBUF_INIT;
setup_work_tree();
while (getline_fn(&buf, stdin) != EOF) {
char *p;
if (!nul_term_line && buf.buf[0] == '"') {
strbuf_reset(&unquoted);
if (unquote_c_style(&unquoted, buf.buf, NULL))
die("line is badly quoted");
strbuf_swap(&buf, &unquoted);
}
p = prefix_path(prefix, prefix_length, buf.buf);
update_one(p);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
free(p);
}
strbuf_release(&unquoted);
strbuf_release(&buf);
}
if (split_index > 0) {
if (git_config_get_split_index() == 0)
warning(_("core.splitIndex is set to false; "
"remove or change it, if you really want to "
"enable split index"));
if (the_index.split_index)
the_index.cache_changed |= SPLIT_INDEX_ORDERED;
else
add_split_index(&the_index);
} else if (!split_index) {
if (git_config_get_split_index() == 1)
warning(_("core.splitIndex is set to true; "
"remove or change it, if you really want to "
"disable split index"));
remove_split_index(&the_index);
}
switch (untracked_cache) {
case UC_UNSPECIFIED:
break;
case UC_DISABLE:
if (git_config_get_untracked_cache() == 1)
warning(_("core.untrackedCache is set to true; "
"remove or change it, if you really want to "
"disable the untracked cache"));
remove_untracked_cache(&the_index);
report(_("Untracked cache disabled"));
break;
case UC_TEST:
setup_work_tree();
return !test_if_untracked_cache_is_supported();
case UC_ENABLE:
case UC_FORCE:
if (git_config_get_untracked_cache() == 0)
warning(_("core.untrackedCache is set to false; "
"remove or change it, if you really want to "
"enable the untracked cache"));
add_untracked_cache(&the_index);
report(_("Untracked cache enabled for '%s'"), get_git_work_tree());
break;
default:
BUG("bad untracked_cache value: %d", untracked_cache);
}
if (fsmonitor > 0) {
if (git_config_get_fsmonitor() == 0)
warning(_("core.fsmonitor is unset; "
"set it if you really want to "
"enable fsmonitor"));
add_fsmonitor(&the_index);
report(_("fsmonitor enabled"));
} else if (!fsmonitor) {
if (git_config_get_fsmonitor() == 1)
warning(_("core.fsmonitor is set; "
"remove it if you really want to "
"disable fsmonitor"));
remove_fsmonitor(&the_index);
report(_("fsmonitor disabled"));
}
if (active_cache_changed || force_write) {
if (newfd < 0) {
if (refresh_args.flags & REFRESH_QUIET)
exit(128);
unable_to_lock_die(get_index_file(), lock_error);
}
if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die("Unable to write new index file");
}
rollback_lock_file(&lock_file);
return has_errors ? 1 : 0;
}