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);
}
}
int merge_recursive_generic(struct merge_options *o,
const unsigned char *head,
const unsigned char *merge,
int num_base_list,
const unsigned char **base_list,
struct commit **result)
{
int clean, index_fd;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
struct commit *head_commit = get_ref(head, o->branch1);
struct commit *next_commit = get_ref(merge, o->branch2);
struct commit_list *ca = NULL;
if (base_list) {
int i;
for (i = 0; i < num_base_list; ++i) {
struct commit *base;
if (!(base = get_ref(base_list[i], sha1_to_hex(base_list[i]))))
return error("Could not parse object '%s'",
sha1_to_hex(base_list[i]));
commit_list_insert(base, &ca);
}
}
index_fd = hold_locked_index(lock, 1);
clean = merge_recursive(o, head_commit, next_commit, ca,
result);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(lock)))
return error("Unable to write index.");
return clean ? 0 : 1;
}
static int checkout(void)
{
unsigned char sha1[20];
char *head;
struct lock_file *lock_file;
struct unpack_trees_options opts;
struct tree *tree;
struct tree_desc t;
int err = 0, fd;
if (option_no_checkout)
return 0;
head = resolve_refdup("HEAD", sha1, 1, NULL);
if (!head) {
warning(_("remote HEAD refers to nonexistent ref, "
"unable to checkout.\n"));
return 0;
}
if (!strcmp(head, "HEAD")) {
if (advice_detached_head)
detach_advice(sha1_to_hex(sha1));
} else {
if (prefixcmp(head, "refs/heads/"))
die(_("HEAD not found below refs/heads!"));
}
free(head);
/* We need to be in the new work tree for the checkout */
setup_work_tree();
lock_file = xcalloc(1, sizeof(struct lock_file));
fd = hold_locked_index(lock_file, 1);
memset(&opts, 0, sizeof opts);
opts.update = 1;
opts.merge = 1;
opts.fn = oneway_merge;
opts.verbose_update = (option_verbosity >= 0);
opts.src_index = &the_index;
opts.dst_index = &the_index;
tree = parse_tree_indirect(sha1);
parse_tree(tree);
init_tree_desc(&t, tree->buffer, tree->size);
if (unpack_trees(1, &t, &opts) < 0)
die(_("unable to checkout working tree"));
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(lock_file))
die(_("unable to write new index file"));
err |= run_hook(NULL, "post-checkout", sha1_to_hex(null_sha1),
sha1_to_hex(sha1), "1", NULL);
if (!err && option_recursive)
err = run_command_v_opt(argv_submodule, RUN_GIT_CMD);
return err;
}
static int do_recursive_merge(struct commit *base, struct commit *next,
const char *base_label, const char *next_label,
unsigned char *head, struct strbuf *msgbuf,
struct replay_opts *opts)
{
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
int clean, index_fd;
const char **xopt;
static struct lock_file index_lock;
index_fd = hold_locked_index(&index_lock, 1);
read_cache();
init_merge_options(&o);
o.ancestor = base ? base_label : "(empty tree)";
o.branch1 = "HEAD";
o.branch2 = next ? next_label : "(empty tree)";
head_tree = parse_tree_indirect(head);
next_tree = next ? next->tree : empty_tree();
base_tree = base ? base->tree : empty_tree();
for (xopt = opts->xopts; xopt != opts->xopts + opts->xopts_nr; xopt++)
parse_merge_opt(&o, *xopt);
clean = merge_trees(&o,
head_tree,
next_tree, base_tree, &result);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(&index_lock)))
/* TRANSLATORS: %s will be "revert" or "cherry-pick" */
die(_("%s: Unable to write new index file"), action_name(opts));
rollback_lock_file(&index_lock);
if (opts->signoff)
append_signoff(msgbuf, 0, 0);
if (!clean) {
int i;
strbuf_addstr(msgbuf, "\nConflicts:\n");
for (i = 0; i < active_nr;) {
const struct cache_entry *ce = active_cache[i++];
if (ce_stage(ce)) {
strbuf_addch(msgbuf, '\t');
strbuf_addstr(msgbuf, ce->name);
strbuf_addch(msgbuf, '\n');
while (i < active_nr && !strcmp(ce->name,
active_cache[i]->name))
i++;
}
}
}
return !clean;
}
static void do_recursive_merge(struct commit *base, struct commit *next,
const char *base_label, const char *next_label,
unsigned char *head, struct strbuf *msgbuf,
char *defmsg)
{
struct merge_options o;
struct tree *result, *next_tree, *base_tree, *head_tree;
int clean, index_fd;
static struct lock_file index_lock;
index_fd = hold_locked_index(&index_lock, 1);
read_cache();
init_merge_options(&o);
o.ancestor = base ? base_label : "(empty tree)";
o.branch1 = "HEAD";
o.branch2 = next ? next_label : "(empty tree)";
head_tree = parse_tree_indirect(head);
next_tree = next ? next->tree : empty_tree();
base_tree = base ? base->tree : empty_tree();
clean = merge_trees(&o,
head_tree,
next_tree, base_tree, &result);
if (active_cache_changed &&
(write_cache(index_fd, active_cache, active_nr) ||
commit_locked_index(&index_lock)))
die("%s: Unable to write new index file", me);
rollback_lock_file(&index_lock);
if (!clean) {
int i;
strbuf_addstr(msgbuf, "\nConflicts:\n\n");
for (i = 0; i < active_nr;) {
struct cache_entry *ce = active_cache[i++];
if (ce_stage(ce)) {
strbuf_addch(msgbuf, '\t');
strbuf_addstr(msgbuf, ce->name);
strbuf_addch(msgbuf, '\n');
while (i < active_nr && !strcmp(ce->name,
active_cache[i]->name))
i++;
}
}
write_message(msgbuf, defmsg);
fprintf(stderr, "Automatic %s failed.%s\n",
me, help_msg());
rerere(allow_rerere_auto);
exit(1);
}
write_message(msgbuf, defmsg);
fprintf(stderr, "Finished one %s.\n", me);
}
static int reset_index_file(const unsigned char *sha1, int reset_type, int quiet)
{
int nr = 1;
int newfd;
struct tree_desc desc[2];
struct unpack_trees_options opts;
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
memset(&opts, 0, sizeof(opts));
opts.head_idx = 1;
opts.src_index = &the_index;
opts.dst_index = &the_index;
opts.fn = oneway_merge;
opts.merge = 1;
if (!quiet)
opts.verbose_update = 1;
switch (reset_type) {
case KEEP:
case MERGE:
opts.update = 1;
break;
case HARD:
opts.update = 1;
/* fallthrough */
default:
opts.reset = 1;
}
newfd = hold_locked_index(lock, 1);
read_cache_unmerged();
if (reset_type == KEEP) {
unsigned char head_sha1[20];
if (get_sha1("HEAD", head_sha1))
return error(_("You do not have a valid HEAD."));
if (!fill_tree_descriptor(desc, head_sha1))
return error(_("Failed to find tree of HEAD."));
nr++;
opts.fn = twoway_merge;
}
if (!fill_tree_descriptor(desc + nr - 1, sha1))
return error(_("Failed to find tree of %s."), sha1_to_hex(sha1));
if (unpack_trees(nr, desc, &opts))
return -1;
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(lock))
return error(_("Could not write new index file."));
return 0;
}
static void read_and_refresh_cache(struct replay_opts *opts)
{
static struct lock_file index_lock;
int index_fd = hold_locked_index(&index_lock, 0);
if (read_index_preload(&the_index, NULL) < 0)
die(_("git %s: failed to read the index"), action_name(opts));
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
if (the_index.cache_changed) {
if (write_index(&the_index, index_fd) ||
commit_locked_index(&index_lock))
die(_("git %s: failed to refresh the index"), action_name(opts));
}
rollback_lock_file(&index_lock);
}
static void read_and_refresh_cache(const char *me)
{
static struct lock_file index_lock;
int index_fd = hold_locked_index(&index_lock, 0);
if (read_index_preload(&the_index, NULL) < 0)
die("git %s: failed to read the index", me);
refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
if (the_index.cache_changed) {
if (write_index(&the_index, index_fd) ||
commit_locked_index(&index_lock))
die("git %s: failed to refresh the index", me);
}
rollback_lock_file(&index_lock);
}
int checkout_fast_forward(const unsigned char *head, const unsigned char *remote)
{
struct tree *trees[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
struct tree_desc t[MAX_UNPACK_TREES];
int i, fd, nr_trees = 0;
struct dir_struct dir;
struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
refresh_cache(REFRESH_QUIET);
fd = hold_locked_index(lock_file, 1);
memset(&trees, 0, sizeof(trees));
memset(&opts, 0, sizeof(opts));
memset(&t, 0, sizeof(t));
if (overwrite_ignore) {
memset(&dir, 0, sizeof(dir));
dir.flags |= DIR_SHOW_IGNORED;
setup_standard_excludes(&dir);
opts.dir = &dir;
}
opts.head_idx = 1;
opts.src_index = &the_index;
opts.dst_index = &the_index;
opts.update = 1;
opts.verbose_update = 1;
opts.merge = 1;
opts.fn = twoway_merge;
setup_unpack_trees_porcelain(&opts, "merge");
trees[nr_trees] = parse_tree_indirect(head);
if (!trees[nr_trees++])
return -1;
trees[nr_trees] = parse_tree_indirect(remote);
if (!trees[nr_trees++])
return -1;
for (i = 0; i < nr_trees; i++) {
parse_tree(trees[i]);
init_tree_desc(t+i, trees[i]->buffer, trees[i]->size);
}
if (unpack_trees(nr_trees, t, &opts))
return -1;
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(lock_file))
die(_("unable to write new index file"));
return 0;
}
static int checkout_fast_forward(unsigned char *head, unsigned char *remote)
{
struct tree *trees[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
struct tree_desc t[MAX_UNPACK_TREES];
int i, fd, nr_trees = 0;
struct dir_struct dir;
struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
if (read_cache_unmerged())
die("you need to resolve your current index first");
fd = hold_locked_index(lock_file, 1);
memset(&trees, 0, sizeof(trees));
memset(&opts, 0, sizeof(opts));
memset(&t, 0, sizeof(t));
dir.show_ignored = 1;
dir.exclude_per_dir = ".gitignore";
opts.dir = &dir;
opts.head_idx = 1;
opts.src_index = &the_index;
opts.dst_index = &the_index;
opts.update = 1;
opts.verbose_update = 1;
opts.merge = 1;
opts.fn = twoway_merge;
trees[nr_trees] = parse_tree_indirect(head);
if (!trees[nr_trees++])
return -1;
trees[nr_trees] = parse_tree_indirect(remote);
if (!trees[nr_trees++])
return -1;
for (i = 0; i < nr_trees; i++) {
parse_tree(trees[i]);
init_tree_desc(t+i, trees[i]->buffer, trees[i]->size);
}
if (unpack_trees(nr_trees, t, &opts))
return -1;
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(lock_file))
die("unable to write new index file");
return 0;
}
static int update_index_refresh(int fd, struct lock_file *index_lock, int flags)
{
int result;
if (!index_lock) {
index_lock = xcalloc(1, sizeof(struct lock_file));
fd = hold_locked_index(index_lock, 1);
}
if (read_cache() < 0)
return error("Could not read index");
result = refresh_cache(flags) ? 1 : 0;
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(index_lock))
return error ("Could not refresh index");
return result;
}
static void refresh_index_quietly(void)
{
struct lock_file *lock_file;
int fd;
lock_file = xcalloc(1, sizeof(struct lock_file));
fd = hold_locked_index(lock_file, 0);
if (fd < 0)
return;
discard_cache();
read_cache();
refresh_cache(REFRESH_QUIET|REFRESH_UNMERGED);
if (active_cache_changed &&
!write_cache(fd, active_cache, active_nr))
commit_locked_index(lock_file);
rollback_lock_file(lock_file);
}
static int update_paths(struct string_list *update)
{
int i;
int fd = hold_locked_index(&index_lock, 0);
int status = 0;
if (fd < 0)
return -1;
for (i = 0; i < update->nr; i++) {
struct string_list_item *item = &update->items[i];
if (add_file_to_cache(item->string, ADD_CACHE_IGNORE_ERRORS))
status = -1;
}
if (!status && active_cache_changed) {
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(&index_lock))
die("Unable to write new index file");
} else if (fd >= 0)
rollback_lock_file(&index_lock);
return status;
}
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_rm(int argc, const char **argv, const char *prefix)
{
int i, newfd;
const char **pathspec;
char *seen;
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, builtin_rm_options,
builtin_rm_usage, 0);
if (!argc)
usage_with_options(builtin_rm_usage, builtin_rm_options);
if (!index_only)
setup_work_tree();
newfd = hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
/*
* Drop trailing directory separators from directories so we'll find
* submodules in the index.
*/
for (i = 0; i < argc; i++) {
size_t pathlen = strlen(argv[i]);
if (pathlen && is_dir_sep(argv[i][pathlen - 1]) &&
is_directory(argv[i])) {
do {
pathlen--;
} while (pathlen && is_dir_sep(argv[i][pathlen - 1]));
argv[i] = xmemdupz(argv[i], pathlen);
}
}
pathspec = get_pathspec(prefix, argv);
refresh_index(&the_index, REFRESH_QUIET, pathspec, NULL, NULL);
seen = NULL;
for (i = 0; pathspec[i] ; i++)
/* nothing */;
seen = xcalloc(i, 1);
for (i = 0; i < active_nr; i++) {
struct cache_entry *ce = active_cache[i];
if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
continue;
ALLOC_GROW(list.entry, list.nr + 1, list.alloc);
list.entry[list.nr].name = ce->name;
list.entry[list.nr++].is_submodule = S_ISGITLINK(ce->ce_mode);
}
if (pathspec) {
const char *match;
int seen_any = 0;
for (i = 0; (match = pathspec[i]) != NULL ; i++) {
if (!seen[i]) {
if (!ignore_unmatch) {
die(_("pathspec '%s' did not match any files"),
match);
}
}
else {
seen_any = 1;
}
if (!recursive && seen[i] == MATCHED_RECURSIVELY)
die(_("not removing '%s' recursively without -r"),
*match ? match : ".");
}
if (! seen_any)
exit(0);
}
/*
* If not forced, the file, the index and the HEAD (if exists)
* must match; but the file can already been removed, since
* this sequence is a natural "novice" way:
*
* rm F; git rm F
*
* Further, if HEAD commit exists, "diff-index --cached" must
* report no changes unless forced.
*/
if (!force) {
unsigned char sha1[20];
if (get_sha1("HEAD", sha1))
hashclr(sha1);
if (check_local_mod(sha1, index_only))
exit(1);
} else if (!index_only) {
if (check_submodules_use_gitfiles())
exit(1);
}
/*
* First remove the names from the index: we won't commit
* the index unless all of them succeed.
*/
for (i = 0; i < list.nr; i++) {
const char *path = list.entry[i].name;
if (!quiet)
printf("rm '%s'\n", path);
if (remove_file_from_cache(path))
die(_("git rm: unable to remove %s"), path);
}
if (show_only)
return 0;
/*
* Then, unless we used "--cached", remove the filenames from
* the workspace. If we fail to remove the first one, we
* abort the "git rm" (but once we've successfully removed
* any file at all, we'll go ahead and commit to it all:
* by then we've already committed ourselves and can't fail
* in the middle)
*/
if (!index_only) {
int removed = 0;
for (i = 0; i < list.nr; i++) {
const char *path = list.entry[i].name;
if (list.entry[i].is_submodule) {
if (is_empty_dir(path)) {
if (!rmdir(path)) {
removed = 1;
continue;
}
} else {
struct strbuf buf = STRBUF_INIT;
strbuf_addstr(&buf, path);
if (!remove_dir_recursively(&buf, 0)) {
removed = 1;
strbuf_release(&buf);
continue;
}
strbuf_release(&buf);
/* Fallthrough and let remove_path() fail. */
}
}
if (!remove_path(path)) {
removed = 1;
continue;
}
if (!removed)
die_errno("git rm: '%s'", path);
}
}
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die(_("Unable to write new index file"));
}
return 0;
}
int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
{
int i, newfd, stage = 0;
unsigned char sha1[20];
struct tree_desc t[MAX_UNPACK_TREES];
struct unpack_trees_options opts;
int prefix_set = 0;
const struct option read_tree_options[] = {
{ OPTION_CALLBACK, 0, "index-output", NULL, N_("file"),
N_("write resulting index to <file>"),
PARSE_OPT_NONEG, index_output_cb },
OPT_SET_INT(0, "empty", &read_empty,
N_("only empty the index"), 1),
OPT__VERBOSE(&opts.verbose_update, N_("be verbose")),
OPT_GROUP(N_("Merging")),
OPT_SET_INT('m', NULL, &opts.merge,
N_("perform a merge in addition to a read"), 1),
OPT_SET_INT(0, "trivial", &opts.trivial_merges_only,
N_("3-way merge if no file level merging required"), 1),
OPT_SET_INT(0, "aggressive", &opts.aggressive,
N_("3-way merge in presence of adds and removes"), 1),
OPT_SET_INT(0, "reset", &opts.reset,
N_("same as -m, but discard unmerged entries"), 1),
{ OPTION_STRING, 0, "prefix", &opts.prefix, N_("<subdirectory>/"),
N_("read the tree into the index under <subdirectory>/"),
PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP },
OPT_SET_INT('u', NULL, &opts.update,
N_("update working tree with merge result"), 1),
{ OPTION_CALLBACK, 0, "exclude-per-directory", &opts,
N_("gitignore"),
N_("allow explicitly ignored files to be overwritten"),
PARSE_OPT_NONEG, exclude_per_directory_cb },
OPT_SET_INT('i', NULL, &opts.index_only,
N_("don't check the working tree after merging"), 1),
OPT__DRY_RUN(&opts.dry_run, N_("don't update the index or the work tree")),
OPT_SET_INT(0, "no-sparse-checkout", &opts.skip_sparse_checkout,
N_("skip applying sparse checkout filter"), 1),
OPT_SET_INT(0, "debug-unpack", &opts.debug_unpack,
N_("debug unpack-trees"), 1),
OPT_END()
};
memset(&opts, 0, sizeof(opts));
opts.head_idx = -1;
opts.src_index = &the_index;
opts.dst_index = &the_index;
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, unused_prefix, read_tree_options,
read_tree_usage, 0);
newfd = hold_locked_index(&lock_file, 1);
prefix_set = opts.prefix ? 1 : 0;
if (1 < opts.merge + opts.reset + prefix_set)
die("Which one? -m, --reset, or --prefix?");
if (opts.reset || opts.merge || opts.prefix) {
if (read_cache_unmerged() && (opts.prefix || opts.merge))
die("You need to resolve your current index first");
stage = opts.merge = 1;
}
resolve_undo_clear();
for (i = 0; i < argc; i++) {
const char *arg = argv[i];
if (get_sha1(arg, sha1))
die("Not a valid object name %s", arg);
if (list_tree(sha1) < 0)
die("failed to unpack tree object %s", arg);
stage++;
}
if (nr_trees == 0 && !read_empty)
warning("read-tree: emptying the index with no arguments is deprecated; use --empty");
else if (nr_trees > 0 && read_empty)
die("passing trees as arguments contradicts --empty");
if (1 < opts.index_only + opts.update)
die("-u and -i at the same time makes no sense");
if ((opts.update||opts.index_only) && !opts.merge)
die("%s is meaningless without -m, --reset, or --prefix",
opts.update ? "-u" : "-i");
if ((opts.dir && !opts.update))
die("--exclude-per-directory is meaningless unless -u");
if (opts.merge && !opts.index_only)
setup_work_tree();
if (opts.merge) {
if (stage < 2)
die("just how do you expect me to merge %d trees?", stage-1);
switch (stage - 1) {
case 1:
opts.fn = opts.prefix ? bind_merge : oneway_merge;
break;
case 2:
opts.fn = twoway_merge;
opts.initial_checkout = is_cache_unborn();
break;
case 3:
default:
opts.fn = threeway_merge;
break;
}
if (stage - 1 >= 3)
opts.head_idx = stage - 2;
else
opts.head_idx = 1;
}
if (opts.debug_unpack)
opts.fn = debug_merge;
cache_tree_free(&active_cache_tree);
for (i = 0; i < nr_trees; i++) {
struct tree *tree = trees[i];
parse_tree(tree);
init_tree_desc(t+i, tree->buffer, tree->size);
}
if (unpack_trees(nr_trees, t, &opts))
return 128;
if (opts.debug_unpack || opts.dry_run)
return 0; /* do not write the index out */
/*
* When reading only one tree (either the most basic form,
* "-m ent" or "--reset ent" form), we can obtain a fully
* valid cache-tree because the index must match exactly
* what came from the tree.
*/
if (nr_trees == 1 && !opts.prefix)
prime_cache_tree(&active_cache_tree, trees[0]);
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die("unable to write new index file");
return 0;
}
int cmd_add(int argc, const char **argv, const char *prefix)
{
int exit_status = 0;
int newfd;
const char **pathspec;
struct dir_struct dir;
int flags;
int add_new_files;
int require_pathspec;
char *seen = NULL;
git_config(add_config, NULL);
argc = parse_options(argc, argv, prefix, builtin_add_options,
builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
if (patch_interactive)
add_interactive = 1;
if (add_interactive)
exit(interactive_add(argc - 1, argv + 1, prefix));
if (edit_interactive)
return(edit_patch(argc, argv, prefix));
argc--;
argv++;
if (addremove && take_worktree_changes)
die("-A and -u are mutually incompatible");
if (!show_only && ignore_missing)
die("Option --ignore-missing can only be used together with --dry-run");
if ((addremove || take_worktree_changes) && !argc) {
static const char *here[2] = { ".", NULL };
argc = 1;
argv = here;
}
add_new_files = !take_worktree_changes && !refresh_only;
require_pathspec = !take_worktree_changes;
newfd = hold_locked_index(&lock_file, 1);
flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
(show_only ? ADD_CACHE_PRETEND : 0) |
(intent_to_add ? ADD_CACHE_INTENT : 0) |
(ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
(!(addremove || take_worktree_changes)
? ADD_CACHE_IGNORE_REMOVAL : 0));
if (require_pathspec && argc == 0) {
fprintf(stderr, "Nothing specified, nothing added.\n");
fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
return 0;
}
pathspec = validate_pathspec(argc, argv, prefix);
if (read_cache() < 0)
die("index file corrupt");
treat_gitlinks(pathspec);
if (add_new_files) {
int baselen;
/* Set up the default git porcelain excludes */
memset(&dir, 0, sizeof(dir));
if (!ignored_too) {
dir.flags |= DIR_COLLECT_IGNORED;
setup_standard_excludes(&dir);
}
/* This picks up the paths that are not tracked */
baselen = fill_directory(&dir, pathspec);
if (pathspec)
seen = prune_directory(&dir, pathspec, baselen);
}
if (refresh_only) {
refresh(verbose, pathspec);
goto finish;
}
if (pathspec) {
int i;
if (!seen)
seen = find_used_pathspec(pathspec);
for (i = 0; pathspec[i]; i++) {
if (!seen[i] && pathspec[i][0]
&& !file_exists(pathspec[i])) {
if (ignore_missing) {
if (excluded(&dir, pathspec[i], DT_UNKNOWN))
dir_add_ignored(&dir, pathspec[i], strlen(pathspec[i]));
} else
die("pathspec '%s' did not match any files",
pathspec[i]);
}
}
free(seen);
}
exit_status |= add_files_to_cache(prefix, pathspec, flags);
if (add_new_files)
exit_status |= add_files(&dir, flags);
finish:
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die("Unable to write new index file");
}
return exit_status;
}
int cmd_mv(int argc, const char **argv, const char *prefix)
{
int i, newfd, gitmodules_modified = 0;
int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
struct option builtin_mv_options[] = {
OPT__VERBOSE(&verbose, N_("be verbose")),
OPT__DRY_RUN(&show_only, N_("dry run")),
OPT__FORCE(&force, N_("force move/rename even if target exists")),
OPT_BOOL('k', NULL, &ignore_errors, N_("skip move/rename errors")),
OPT_END(),
};
const char **source, **destination, **dest_path, **submodule_gitfile;
enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
struct stat st;
struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
gitmodules_config();
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, builtin_mv_options,
builtin_mv_usage, 0);
if (--argc < 1)
usage_with_options(builtin_mv_usage, builtin_mv_options);
newfd = hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
source = internal_copy_pathspec(prefix, argv, argc, 0);
modes = xcalloc(argc, sizeof(enum update_mode));
/*
* Keep trailing slash, needed to let
* "git mv file no-such-dir/" error out.
*/
dest_path = internal_copy_pathspec(prefix, argv + argc, 1,
KEEP_TRAILING_SLASH);
submodule_gitfile = xcalloc(argc, sizeof(char *));
if (dest_path[0][0] == '\0')
/* special case: "." was normalized to "" */
destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
destination = internal_copy_pathspec(dest_path[0], argv, argc, DUP_BASENAME);
} else {
if (argc != 1)
die("destination '%s' is not a directory", dest_path[0]);
destination = dest_path;
}
/* Checking */
for (i = 0; i < argc; i++) {
const char *src = source[i], *dst = destination[i];
int length, src_is_dir;
const char *bad = NULL;
if (show_only)
printf(_("Checking rename of '%s' to '%s'\n"), src, dst);
length = strlen(src);
if (lstat(src, &st) < 0)
bad = _("bad source");
else if (!strncmp(src, dst, length) &&
(dst[length] == 0 || dst[length] == '/')) {
bad = _("can not move directory into itself");
} else if ((src_is_dir = S_ISDIR(st.st_mode))
&& lstat(dst, &st) == 0)
bad = _("cannot move directory over file");
else if (src_is_dir) {
int first = cache_name_pos(src, length);
if (first >= 0) {
struct strbuf submodule_dotgit = STRBUF_INIT;
if (!S_ISGITLINK(active_cache[first]->ce_mode))
die (_("Huh? Directory %s is in index and no submodule?"), src);
if (!is_staging_gitmodules_ok())
die (_("Please, stage your changes to .gitmodules or stash them to proceed"));
strbuf_addf(&submodule_dotgit, "%s/.git", src);
submodule_gitfile[i] = read_gitfile(submodule_dotgit.buf);
if (submodule_gitfile[i])
submodule_gitfile[i] = xstrdup(submodule_gitfile[i]);
else
submodule_gitfile[i] = SUBMODULE_WITH_GITDIR;
strbuf_release(&submodule_dotgit);
} else {
const char *src_w_slash = add_slash(src);
int last, len_w_slash = length + 1;
modes[i] = WORKING_DIRECTORY;
first = cache_name_pos(src_w_slash, len_w_slash);
if (first >= 0)
die (_("Huh? %.*s is in index?"),
len_w_slash, src_w_slash);
first = -1 - first;
for (last = first; last < active_nr; last++) {
const char *path = active_cache[last]->name;
if (strncmp(path, src_w_slash, len_w_slash))
break;
}
free((char *)src_w_slash);
if (last - first < 1)
bad = _("source directory is empty");
else {
int j, dst_len;
if (last - first > 0) {
source = xrealloc(source,
(argc + last - first)
* sizeof(char *));
destination = xrealloc(destination,
(argc + last - first)
* sizeof(char *));
modes = xrealloc(modes,
(argc + last - first)
* sizeof(enum update_mode));
submodule_gitfile = xrealloc(submodule_gitfile,
(argc + last - first)
* sizeof(char *));
}
dst = add_slash(dst);
dst_len = strlen(dst);
for (j = 0; j < last - first; j++) {
const char *path =
active_cache[first + j]->name;
source[argc + j] = path;
destination[argc + j] =
prefix_path(dst, dst_len,
path + length + 1);
modes[argc + j] = INDEX;
submodule_gitfile[argc + j] = NULL;
}
argc += last - first;
}
}
} else if (cache_name_pos(src, length) < 0)
bad = _("not under version control");
else if (lstat(dst, &st) == 0) {
bad = _("destination exists");
if (force) {
/*
* only files can overwrite each other:
* check both source and destination
*/
if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
if (verbose)
warning(_("overwriting '%s'"), dst);
bad = NULL;
} else
bad = _("Cannot overwrite");
}
} else if (string_list_has_string(&src_for_dst, dst))
bad = _("multiple sources for the same target");
else if (is_dir_sep(dst[strlen(dst) - 1]))
bad = _("destination directory does not exist");
else
string_list_insert(&src_for_dst, dst);
if (bad) {
if (ignore_errors) {
if (--argc > 0) {
memmove(source + i, source + i + 1,
(argc - i) * sizeof(char *));
memmove(destination + i,
destination + i + 1,
(argc - i) * sizeof(char *));
memmove(modes + i, modes + i + 1,
(argc - i) * sizeof(enum update_mode));
memmove(submodule_gitfile + i,
submodule_gitfile + i + 1,
(argc - i) * sizeof(char *));
i--;
}
} else
die (_("%s, source=%s, destination=%s"),
bad, src, dst);
}
}
for (i = 0; i < argc; i++) {
const char *src = source[i], *dst = destination[i];
enum update_mode mode = modes[i];
int pos;
if (show_only || verbose)
printf(_("Renaming %s to %s\n"), src, dst);
if (!show_only && mode != INDEX) {
if (rename(src, dst) < 0 && !ignore_errors)
die_errno (_("renaming '%s' failed"), src);
if (submodule_gitfile[i]) {
if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
connect_work_tree_and_git_dir(dst, submodule_gitfile[i]);
if (!update_path_in_gitmodules(src, dst))
gitmodules_modified = 1;
}
}
if (mode == WORKING_DIRECTORY)
continue;
pos = cache_name_pos(src, strlen(src));
assert(pos >= 0);
if (!show_only)
rename_cache_entry_at(pos, dst);
}
if (gitmodules_modified)
stage_updated_gitmodules();
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die(_("Unable to write new index file"));
}
return 0;
}
int cmd_add(int argc, const char **argv, const char *prefix)
{
int exit_status = 0;
int newfd;
struct pathspec pathspec;
struct dir_struct dir;
int flags;
int add_new_files;
int require_pathspec;
char *seen = NULL;
int implicit_dot = 0;
struct update_callback_data update_data;
git_config(add_config, NULL);
argc = parse_options(argc, argv, prefix, builtin_add_options,
builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
if (patch_interactive)
add_interactive = 1;
if (add_interactive)
exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive));
if (edit_interactive)
return(edit_patch(argc, argv, prefix));
argc--;
argv++;
if (0 <= addremove_explicit)
addremove = addremove_explicit;
else if (take_worktree_changes && ADDREMOVE_DEFAULT)
addremove = 0; /* "-u" was given but not "-A" */
if (addremove && take_worktree_changes)
die(_("-A and -u are mutually incompatible"));
/*
* Warn when "git add pathspec..." was given without "-u" or "-A"
* and pathspec... covers a removed path.
*/
memset(&update_data, 0, sizeof(update_data));
if (!take_worktree_changes && addremove_explicit < 0)
update_data.warn_add_would_remove = 1;
if (!take_worktree_changes && addremove_explicit < 0 && argc)
/*
* Turn "git add pathspec..." to "git add -A pathspec..."
* in Git 2.0 but not yet
*/
; /* addremove = 1; */
if (!show_only && ignore_missing)
die(_("Option --ignore-missing can only be used together with --dry-run"));
if (addremove) {
option_with_implicit_dot = "--all";
short_option_with_implicit_dot = "-A";
}
if (take_worktree_changes) {
option_with_implicit_dot = "--update";
short_option_with_implicit_dot = "-u";
}
if (option_with_implicit_dot && !argc) {
static const char *here[2] = { ".", NULL };
argc = 1;
argv = here;
implicit_dot = 1;
}
add_new_files = !take_worktree_changes && !refresh_only;
require_pathspec = !take_worktree_changes;
newfd = hold_locked_index(&lock_file, 1);
flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
(show_only ? ADD_CACHE_PRETEND : 0) |
(intent_to_add ? ADD_CACHE_INTENT : 0) |
(ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
(!(addremove || take_worktree_changes)
? ADD_CACHE_IGNORE_REMOVAL : 0)) |
(implicit_dot ? ADD_CACHE_IMPLICIT_DOT : 0);
if (require_pathspec && argc == 0) {
fprintf(stderr, _("Nothing specified, nothing added.\n"));
fprintf(stderr, _("Maybe you wanted to say 'git add .'?\n"));
return 0;
}
if (read_cache() < 0)
die(_("index file corrupt"));
/*
* Check the "pathspec '%s' did not match any files" block
* below before enabling new magic.
*/
parse_pathspec(&pathspec, 0,
PATHSPEC_PREFER_FULL |
PATHSPEC_SYMLINK_LEADING_PATH |
PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE,
prefix, argv);
if (add_new_files) {
int baselen;
struct pathspec empty_pathspec;
/* Set up the default git porcelain excludes */
memset(&dir, 0, sizeof(dir));
if (!ignored_too) {
dir.flags |= DIR_COLLECT_IGNORED;
setup_standard_excludes(&dir);
}
memset(&empty_pathspec, 0, sizeof(empty_pathspec));
/* This picks up the paths that are not tracked */
baselen = fill_directory(&dir, implicit_dot ? &empty_pathspec : &pathspec);
if (pathspec.nr)
seen = prune_directory(&dir, &pathspec, baselen,
implicit_dot ? WARN_IMPLICIT_DOT : 0);
}
if (refresh_only) {
refresh(verbose, &pathspec);
goto finish;
}
if (implicit_dot && prefix)
refresh_cache(REFRESH_QUIET);
if (pathspec.nr) {
int i;
if (!seen)
seen = find_pathspecs_matching_against_index(&pathspec);
/*
* file_exists() assumes exact match
*/
GUARD_PATHSPEC(&pathspec,
PATHSPEC_FROMTOP |
PATHSPEC_LITERAL |
PATHSPEC_GLOB |
PATHSPEC_ICASE);
for (i = 0; i < pathspec.nr; i++) {
const char *path = pathspec.items[i].match;
if (!seen[i] &&
((pathspec.items[i].magic &
(PATHSPEC_GLOB | PATHSPEC_ICASE)) ||
!file_exists(path))) {
if (ignore_missing) {
int dtype = DT_UNKNOWN;
if (is_excluded(&dir, path, &dtype))
dir_add_ignored(&dir, path, pathspec.items[i].len);
} else
die(_("pathspec '%s' did not match any files"),
pathspec.items[i].original);
}
}
free(seen);
}
plug_bulk_checkin();
if ((flags & ADD_CACHE_IMPLICIT_DOT) && prefix) {
/*
* Check for modified files throughout the worktree so
* update_callback has a chance to warn about changes
* outside the cwd.
*/
update_data.implicit_dot = prefix;
update_data.implicit_dot_len = strlen(prefix);
free_pathspec(&pathspec);
memset(&pathspec, 0, sizeof(pathspec));
}
update_data.flags = flags & ~ADD_CACHE_IMPLICIT_DOT;
update_files_in_cache(prefix, &pathspec, &update_data);
exit_status |= !!update_data.add_errors;
if (add_new_files)
exit_status |= add_files(&dir, flags);
unplug_bulk_checkin();
finish:
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die(_("Unable to write new index file"));
}
return exit_status;
}
int cmd_rm(int argc, const char **argv, const char *prefix)
{
int i, newfd;
struct pathspec pathspec;
char *seen;
gitmodules_config();
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, builtin_rm_options,
builtin_rm_usage, 0);
if (!argc)
usage_with_options(builtin_rm_usage, builtin_rm_options);
if (!index_only)
setup_work_tree();
newfd = hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die(_("index file corrupt"));
parse_pathspec(&pathspec, 0,
PATHSPEC_PREFER_CWD |
PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP,
prefix, argv);
refresh_index(&the_index, REFRESH_QUIET, &pathspec, NULL, NULL);
seen = xcalloc(pathspec.nr, 1);
for (i = 0; i < active_nr; i++) {
const struct cache_entry *ce = active_cache[i];
if (!ce_path_match(ce, &pathspec, seen))
continue;
ALLOC_GROW(list.entry, list.nr + 1, list.alloc);
list.entry[list.nr].name = xstrdup(ce->name);
list.entry[list.nr].is_submodule = S_ISGITLINK(ce->ce_mode);
if (list.entry[list.nr++].is_submodule &&
!is_staging_gitmodules_ok())
die (_("Please, stage your changes to .gitmodules or stash them to proceed"));
}
if (pathspec.nr) {
const char *original;
int seen_any = 0;
for (i = 0; i < pathspec.nr; i++) {
original = pathspec.items[i].original;
if (!seen[i]) {
if (!ignore_unmatch) {
die(_("pathspec '%s' did not match any files"),
original);
}
}
else {
seen_any = 1;
}
if (!recursive && seen[i] == MATCHED_RECURSIVELY)
die(_("not removing '%s' recursively without -r"),
*original ? original : ".");
}
if (!seen_any)
exit(0);
}
/*
* If not forced, the file, the index and the HEAD (if exists)
* must match; but the file can already been removed, since
* this sequence is a natural "novice" way:
*
* rm F; git rm F
*
* Further, if HEAD commit exists, "diff-index --cached" must
* report no changes unless forced.
*/
if (!force) {
unsigned char sha1[20];
if (get_sha1("HEAD", sha1))
hashclr(sha1);
if (check_local_mod(sha1, index_only))
exit(1);
} else if (!index_only) {
if (check_submodules_use_gitfiles())
exit(1);
}
/*
* First remove the names from the index: we won't commit
* the index unless all of them succeed.
*/
for (i = 0; i < list.nr; i++) {
const char *path = list.entry[i].name;
if (!quiet)
printf("rm '%s'\n", path);
if (remove_file_from_cache(path))
die(_("git rm: unable to remove %s"), path);
}
if (show_only)
return 0;
/*
* Then, unless we used "--cached", remove the filenames from
* the workspace. If we fail to remove the first one, we
* abort the "git rm" (but once we've successfully removed
* any file at all, we'll go ahead and commit to it all:
* by then we've already committed ourselves and can't fail
* in the middle)
*/
if (!index_only) {
int removed = 0, gitmodules_modified = 0;
for (i = 0; i < list.nr; i++) {
const char *path = list.entry[i].name;
if (list.entry[i].is_submodule) {
if (is_empty_dir(path)) {
if (!rmdir(path)) {
removed = 1;
if (!remove_path_from_gitmodules(path))
gitmodules_modified = 1;
continue;
}
} else {
struct strbuf buf = STRBUF_INIT;
strbuf_addstr(&buf, path);
if (!remove_dir_recursively(&buf, 0)) {
removed = 1;
if (!remove_path_from_gitmodules(path))
gitmodules_modified = 1;
strbuf_release(&buf);
continue;
} else if (!file_exists(path))
/* Submodule was removed by user */
if (!remove_path_from_gitmodules(path))
gitmodules_modified = 1;
strbuf_release(&buf);
/* Fallthrough and let remove_path() fail. */
}
}
if (!remove_path(path)) {
removed = 1;
continue;
}
if (!removed)
die_errno("git rm: '%s'", path);
}
if (gitmodules_modified)
stage_updated_gitmodules();
}
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die(_("Unable to write new index file"));
}
return 0;
}
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_checkout_index(int argc, const char **argv, const char *prefix)
{
int i;
int newfd = -1;
int all = 0;
int read_from_stdin = 0;
int prefix_length;
int force = 0, quiet = 0, not_new = 0;
struct option builtin_checkout_index_options[] = {
OPT_BOOLEAN('a', "all", &all,
"checks out all files in the index"),
OPT_BOOLEAN('f', "force", &force,
"forces overwrite of existing files"),
OPT__QUIET(&quiet),
OPT_BOOLEAN('n', "no-create", ¬_new,
"don't checkout new files"),
{ OPTION_CALLBACK, 'u', "index", &newfd, NULL,
"update stat information in the index file",
PARSE_OPT_NOARG, option_parse_u },
{ OPTION_CALLBACK, 'z', NULL, NULL, NULL,
"paths are separated with NUL character",
PARSE_OPT_NOARG, option_parse_z },
OPT_BOOLEAN(0, "stdin", &read_from_stdin,
"read list of paths from the standard input"),
OPT_BOOLEAN(0, "temp", &to_tempfile,
"write the content to temporary files"),
OPT_CALLBACK(0, "prefix", NULL, "string",
"when creating files, prepend <string>",
option_parse_prefix),
OPT_CALLBACK(0, "stage", NULL, NULL,
"copy out the files from named stage",
option_parse_stage),
OPT_END()
};
git_config(git_default_config, NULL);
state.base_dir = "";
prefix_length = prefix ? strlen(prefix) : 0;
if (read_cache() < 0) {
die("invalid cache");
}
argc = parse_options(argc, argv, builtin_checkout_index_options,
builtin_checkout_index_usage, 0);
state.force = force;
state.quiet = quiet;
state.not_new = not_new;
if (state.base_dir_len || to_tempfile) {
/* when --prefix is specified we do not
* want to update cache.
*/
if (state.refresh_cache) {
rollback_lock_file(&lock_file);
newfd = -1;
}
state.refresh_cache = 0;
}
/* Check out named files first */
for (i = 0; i < argc; i++) {
const char *arg = argv[i];
const char *p;
if (all)
die("git checkout-index: don't mix '--all' and explicit filenames");
if (read_from_stdin)
die("git checkout-index: don't mix '--stdin' and explicit filenames");
p = prefix_path(prefix, prefix_length, arg);
checkout_file(p, prefix_length);
if (p < arg || p > arg + strlen(arg))
free((char*)p);
}
if (read_from_stdin) {
struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT;
if (all)
die("git checkout-index: don't mix '--all' and '--stdin'");
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);
checkout_file(p, prefix_length);
if (p < buf.buf || p > buf.buf + buf.len)
free((char *)p);
}
strbuf_release(&nbuf);
strbuf_release(&buf);
}
if (all)
checkout_all(prefix, prefix_length);
if (0 <= newfd &&
(write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file)))
die("Unable to write new index file");
return 0;
}
int cmd_add(int argc, const char **argv, const char *prefix)
{
int exit_status = 0;
int newfd;
const char **pathspec;
struct dir_struct dir;
int flags;
int add_new_files;
int require_pathspec;
argc = parse_options(argc, argv, builtin_add_options,
builtin_add_usage, 0);
if (patch_interactive)
add_interactive = 1;
if (add_interactive)
exit(interactive_add(argc, argv, prefix));
git_config(add_config, NULL);
if (addremove && take_worktree_changes)
die("-A and -u are mutually incompatible");
if ((addremove || take_worktree_changes) && !argc) {
static const char *here[2] = { ".", NULL };
argc = 1;
argv = here;
}
add_new_files = !take_worktree_changes && !refresh_only;
require_pathspec = !take_worktree_changes;
newfd = hold_locked_index(&lock_file, 1);
flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
(show_only ? ADD_CACHE_PRETEND : 0) |
(intent_to_add ? ADD_CACHE_INTENT : 0) |
(ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
(!(addremove || take_worktree_changes)
? ADD_CACHE_IGNORE_REMOVAL : 0));
if (require_pathspec && argc == 0) {
fprintf(stderr, "Nothing specified, nothing added.\n");
fprintf(stderr, "Maybe you wanted to say 'git add .'?\n");
return 0;
}
pathspec = validate_pathspec(argc, argv, prefix);
if (read_cache() < 0)
die("index file corrupt");
treat_gitlinks(pathspec);
if (add_new_files)
/* This picks up the paths that are not tracked */
fill_directory(&dir, pathspec, ignored_too);
if (refresh_only) {
refresh(verbose, pathspec);
goto finish;
}
exit_status |= add_files_to_cache(prefix, pathspec, flags);
if (add_new_files)
exit_status |= add_files(&dir, flags);
finish:
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die("Unable to write new index file");
}
return exit_status;
}
int cmd_clone(int argc, const char **argv, const char *prefix)
{
int is_bundle = 0;
struct stat buf;
const char *repo_name, *repo, *work_tree, *git_dir;
char *path, *dir;
int dest_exists;
const struct ref *refs, *remote_head;
const struct ref *remote_head_points_at;
const struct ref *our_head_points_at;
struct ref *mapped_refs;
struct strbuf key = STRBUF_INIT, value = STRBUF_INIT;
struct strbuf branch_top = STRBUF_INIT, reflog_msg = STRBUF_INIT;
struct transport *transport = NULL;
char *src_ref_prefix = "refs/heads/";
int err = 0;
struct refspec *refspec;
const char *fetch_pattern;
junk_pid = getpid();
argc = parse_options(argc, argv, prefix, builtin_clone_options,
builtin_clone_usage, 0);
if (argc > 2)
usage_msg_opt("Too many arguments.",
builtin_clone_usage, builtin_clone_options);
if (argc == 0)
usage_msg_opt("You must specify a repository to clone.",
builtin_clone_usage, builtin_clone_options);
if (option_mirror)
option_bare = 1;
if (option_bare) {
if (option_origin)
die("--bare and --origin %s options are incompatible.",
option_origin);
option_no_checkout = 1;
}
if (!option_origin)
option_origin = "origin";
repo_name = argv[0];
path = get_repo_path(repo_name, &is_bundle);
if (path)
repo = xstrdup(make_nonrelative_path(repo_name));
else if (!strchr(repo_name, ':'))
repo = xstrdup(make_absolute_path(repo_name));
else
repo = repo_name;
if (argc == 2)
dir = xstrdup(argv[1]);
else
dir = guess_dir_name(repo_name, is_bundle, option_bare);
strip_trailing_slashes(dir);
dest_exists = !stat(dir, &buf);
if (dest_exists && !is_empty_dir(dir))
die("destination path '%s' already exists and is not "
"an empty directory.", dir);
strbuf_addf(&reflog_msg, "clone: from %s", repo);
if (option_bare)
work_tree = NULL;
else {
work_tree = getenv("GIT_WORK_TREE");
if (work_tree && !stat(work_tree, &buf))
die("working tree '%s' already exists.", work_tree);
}
if (option_bare || work_tree)
git_dir = xstrdup(dir);
else {
work_tree = dir;
git_dir = xstrdup(mkpath("%s/.git", dir));
}
if (!option_bare) {
junk_work_tree = work_tree;
if (safe_create_leading_directories_const(work_tree) < 0)
die_errno("could not create leading directories of '%s'",
work_tree);
if (!dest_exists && mkdir(work_tree, 0755))
die_errno("could not create work tree dir '%s'.",
work_tree);
set_git_work_tree(work_tree);
}
junk_git_dir = git_dir;
atexit(remove_junk);
sigchain_push_common(remove_junk_on_signal);
setenv(CONFIG_ENVIRONMENT, mkpath("%s/config", git_dir), 1);
if (safe_create_leading_directories_const(git_dir) < 0)
die("could not create leading directories of '%s'", git_dir);
set_git_dir(make_absolute_path(git_dir));
init_db(option_template, option_quiet ? INIT_DB_QUIET : 0);
/*
* At this point, the config exists, so we do not need the
* environment variable. We actually need to unset it, too, to
* re-enable parsing of the global configs.
*/
unsetenv(CONFIG_ENVIRONMENT);
if (option_reference)
setup_reference(git_dir);
git_config(git_default_config, NULL);
if (option_bare) {
if (option_mirror)
src_ref_prefix = "refs/";
strbuf_addstr(&branch_top, src_ref_prefix);
git_config_set("core.bare", "true");
} else {
strbuf_addf(&branch_top, "refs/remotes/%s/", option_origin);
}
strbuf_addf(&value, "+%s*:%s*", src_ref_prefix, branch_top.buf);
if (option_mirror || !option_bare) {
/* Configure the remote */
strbuf_addf(&key, "remote.%s.fetch", option_origin);
git_config_set_multivar(key.buf, value.buf, "^$", 0);
strbuf_reset(&key);
if (option_mirror) {
strbuf_addf(&key, "remote.%s.mirror", option_origin);
git_config_set(key.buf, "true");
strbuf_reset(&key);
}
strbuf_addf(&key, "remote.%s.url", option_origin);
git_config_set(key.buf, repo);
strbuf_reset(&key);
}
fetch_pattern = value.buf;
refspec = parse_fetch_refspec(1, &fetch_pattern);
strbuf_reset(&value);
if (path && !is_bundle) {
refs = clone_local(path, git_dir);
mapped_refs = wanted_peer_refs(refs, refspec);
} else {
struct remote *remote = remote_get(argv[0]);
transport = transport_get(remote, remote->url[0]);
if (!transport->get_refs_list || !transport->fetch)
die("Don't know how to clone %s", transport->url);
transport_set_option(transport, TRANS_OPT_KEEP, "yes");
if (option_depth)
transport_set_option(transport, TRANS_OPT_DEPTH,
option_depth);
if (option_quiet)
transport->verbose = -1;
else if (option_verbose)
transport->verbose = 1;
if (option_progress)
transport->progress = 1;
if (option_upload_pack)
transport_set_option(transport, TRANS_OPT_UPLOADPACK,
option_upload_pack);
refs = transport_get_remote_refs(transport);
if (refs) {
mapped_refs = wanted_peer_refs(refs, refspec);
transport_fetch_refs(transport, mapped_refs);
}
}
if (refs) {
clear_extra_refs();
write_remote_refs(mapped_refs);
remote_head = find_ref_by_name(refs, "HEAD");
remote_head_points_at =
guess_remote_head(remote_head, mapped_refs, 0);
if (option_branch) {
struct strbuf head = STRBUF_INIT;
strbuf_addstr(&head, src_ref_prefix);
strbuf_addstr(&head, option_branch);
our_head_points_at =
find_ref_by_name(mapped_refs, head.buf);
strbuf_release(&head);
if (!our_head_points_at) {
warning("Remote branch %s not found in "
"upstream %s, using HEAD instead",
option_branch, option_origin);
our_head_points_at = remote_head_points_at;
}
}
else
our_head_points_at = remote_head_points_at;
}
else {
warning("You appear to have cloned an empty repository.");
our_head_points_at = NULL;
remote_head_points_at = NULL;
remote_head = NULL;
option_no_checkout = 1;
if (!option_bare)
install_branch_config(0, "master", option_origin,
"refs/heads/master");
}
if (remote_head_points_at && !option_bare) {
struct strbuf head_ref = STRBUF_INIT;
strbuf_addstr(&head_ref, branch_top.buf);
strbuf_addstr(&head_ref, "HEAD");
create_symref(head_ref.buf,
remote_head_points_at->peer_ref->name,
reflog_msg.buf);
}
if (our_head_points_at) {
/* Local default branch link */
create_symref("HEAD", our_head_points_at->name, NULL);
if (!option_bare) {
const char *head = skip_prefix(our_head_points_at->name,
"refs/heads/");
update_ref(reflog_msg.buf, "HEAD",
our_head_points_at->old_sha1,
NULL, 0, DIE_ON_ERR);
install_branch_config(0, head, option_origin,
our_head_points_at->name);
}
} else if (remote_head) {
/* Source had detached HEAD pointing somewhere. */
if (!option_bare) {
update_ref(reflog_msg.buf, "HEAD",
remote_head->old_sha1,
NULL, REF_NODEREF, DIE_ON_ERR);
our_head_points_at = remote_head;
}
} else {
/* Nothing to checkout out */
if (!option_no_checkout)
warning("remote HEAD refers to nonexistent ref, "
"unable to checkout.\n");
option_no_checkout = 1;
}
if (transport) {
transport_unlock_pack(transport);
transport_disconnect(transport);
}
if (!option_no_checkout) {
struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file));
struct unpack_trees_options opts;
struct tree *tree;
struct tree_desc t;
int fd;
/* We need to be in the new work tree for the checkout */
setup_work_tree();
fd = hold_locked_index(lock_file, 1);
memset(&opts, 0, sizeof opts);
opts.update = 1;
opts.merge = 1;
opts.fn = oneway_merge;
opts.verbose_update = !option_quiet;
opts.src_index = &the_index;
opts.dst_index = &the_index;
tree = parse_tree_indirect(our_head_points_at->old_sha1);
parse_tree(tree);
init_tree_desc(&t, tree->buffer, tree->size);
unpack_trees(1, &t, &opts);
if (write_cache(fd, active_cache, active_nr) ||
commit_locked_index(lock_file))
die("unable to write new index file");
err |= run_hook(NULL, "post-checkout", sha1_to_hex(null_sha1),
sha1_to_hex(our_head_points_at->old_sha1), "1",
NULL);
if (!err && option_recursive)
err = run_command_v_opt(argv_submodule, RUN_GIT_CMD);
}
strbuf_release(&reflog_msg);
strbuf_release(&branch_top);
strbuf_release(&key);
strbuf_release(&value);
junk_pid = 0;
return err;
}
int cmd_reset(int argc, const char **argv, const char *prefix)
{
int reset_type = NONE, update_ref_status = 0, quiet = 0;
int patch_mode = 0, unborn;
const char *rev;
unsigned char sha1[20];
const char **pathspec = NULL;
const struct option options[] = {
OPT__QUIET(&quiet, N_("be quiet, only report errors")),
OPT_SET_INT(0, "mixed", &reset_type,
N_("reset HEAD and index"), MIXED),
OPT_SET_INT(0, "soft", &reset_type, N_("reset only HEAD"), SOFT),
OPT_SET_INT(0, "hard", &reset_type,
N_("reset HEAD, index and working tree"), HARD),
OPT_SET_INT(0, "merge", &reset_type,
N_("reset HEAD, index and working tree"), MERGE),
OPT_SET_INT(0, "keep", &reset_type,
N_("reset HEAD but keep local changes"), KEEP),
OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")),
OPT_END()
};
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, options, git_reset_usage,
PARSE_OPT_KEEP_DASHDASH);
pathspec = parse_args(argv, prefix, &rev);
unborn = !strcmp(rev, "HEAD") && get_sha1("HEAD", sha1);
if (unborn) {
/* reset on unborn branch: treat as reset to empty tree */
hashcpy(sha1, EMPTY_TREE_SHA1_BIN);
} else if (!pathspec) {
struct commit *commit;
if (get_sha1_committish(rev, sha1))
die(_("Failed to resolve '%s' as a valid revision."), rev);
commit = lookup_commit_reference(sha1);
if (!commit)
die(_("Could not parse object '%s'."), rev);
hashcpy(sha1, commit->object.sha1);
} else {
struct tree *tree;
if (get_sha1_treeish(rev, sha1))
die(_("Failed to resolve '%s' as a valid tree."), rev);
tree = parse_tree_indirect(sha1);
if (!tree)
die(_("Could not parse object '%s'."), rev);
hashcpy(sha1, tree->object.sha1);
}
if (patch_mode) {
if (reset_type != NONE)
die(_("--patch is incompatible with --{hard,mixed,soft}"));
return run_add_interactive(sha1_to_hex(sha1), "--patch=reset", pathspec);
}
/* git reset tree [--] paths... can be used to
* load chosen paths from the tree into the index without
* affecting the working tree nor HEAD. */
if (pathspec) {
if (reset_type == MIXED)
warning(_("--mixed with paths is deprecated; use 'git reset -- <paths>' instead."));
else if (reset_type != NONE)
die(_("Cannot do %s reset with paths."),
_(reset_type_names[reset_type]));
}
if (reset_type == NONE)
reset_type = MIXED; /* by default */
if (reset_type != SOFT && reset_type != MIXED)
setup_work_tree();
if (reset_type == MIXED && is_bare_repository())
die(_("%s reset is not allowed in a bare repository"),
_(reset_type_names[reset_type]));
/* Soft reset does not touch the index file nor the working tree
* at all, but requires them in a good order. Other resets reset
* the index file to the tree object we are switching to. */
if (reset_type == SOFT || reset_type == KEEP)
die_if_unmerged_cache(reset_type);
if (reset_type != SOFT) {
struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
int newfd = hold_locked_index(lock, 1);
if (reset_type == MIXED) {
if (read_from_tree(pathspec, sha1))
return 1;
} else {
int err = reset_index(sha1, reset_type, quiet);
if (reset_type == KEEP && !err)
err = reset_index(sha1, MIXED, quiet);
if (err)
die(_("Could not reset index file to revision '%s'."), rev);
}
if (reset_type == MIXED) { /* Report what has not been updated. */
int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN;
refresh_index(&the_index, flags, NULL, NULL,
_("Unstaged changes after reset:"));
}
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(lock))
die(_("Could not write new index file."));
}
if (!pathspec && !unborn) {
/* Any resets without paths update HEAD to the head being
* switched to, saving the previous head in ORIG_HEAD before. */
update_ref_status = update_refs(rev, sha1);
if (reset_type == HARD && !update_ref_status && !quiet)
print_new_head_line(lookup_commit_reference(sha1));
}
if (!pathspec)
remove_branch_state();
return update_ref_status;
}
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_mv(int argc, const char **argv, const char *prefix)
{
int i, newfd;
int verbose = 0, show_only = 0, force = 0, ignore_errors = 0;
struct option builtin_mv_options[] = {
OPT__DRY_RUN(&show_only),
OPT_BOOLEAN('f', "force", &force, "force move/rename even if target exists"),
OPT_BOOLEAN('k', NULL, &ignore_errors, "skip move/rename errors"),
OPT_END(),
};
const char **source, **destination, **dest_path;
enum update_mode { BOTH = 0, WORKING_DIRECTORY, INDEX } *modes;
struct stat st;
struct string_list src_for_dst = STRING_LIST_INIT_NODUP;
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, builtin_mv_options,
builtin_mv_usage, 0);
if (--argc < 1)
usage_with_options(builtin_mv_usage, builtin_mv_options);
newfd = hold_locked_index(&lock_file, 1);
if (read_cache() < 0)
die("index file corrupt");
source = copy_pathspec(prefix, argv, argc, 0);
modes = xcalloc(argc, sizeof(enum update_mode));
dest_path = copy_pathspec(prefix, argv + argc, 1, 0);
if (dest_path[0][0] == '\0')
/* special case: "." was normalized to "" */
destination = copy_pathspec(dest_path[0], argv, argc, 1);
else if (!lstat(dest_path[0], &st) &&
S_ISDIR(st.st_mode)) {
dest_path[0] = add_slash(dest_path[0]);
destination = copy_pathspec(dest_path[0], argv, argc, 1);
} else {
if (argc != 1)
usage_with_options(builtin_mv_usage, builtin_mv_options);
destination = dest_path;
}
/* Checking */
for (i = 0; i < argc; i++) {
const char *src = source[i], *dst = destination[i];
int length, src_is_dir;
const char *bad = NULL;
if (show_only)
printf("Checking rename of '%s' to '%s'\n", src, dst);
length = strlen(src);
if (lstat(src, &st) < 0)
bad = "bad source";
else if (!strncmp(src, dst, length) &&
(dst[length] == 0 || dst[length] == '/')) {
bad = "can not move directory into itself";
} else if ((src_is_dir = S_ISDIR(st.st_mode))
&& lstat(dst, &st) == 0)
bad = "cannot move directory over file";
else if (src_is_dir) {
const char *src_w_slash = add_slash(src);
int len_w_slash = length + 1;
int first, last;
modes[i] = WORKING_DIRECTORY;
first = cache_name_pos(src_w_slash, len_w_slash);
if (first >= 0)
die ("Huh? %.*s is in index?",
len_w_slash, src_w_slash);
first = -1 - first;
for (last = first; last < active_nr; last++) {
const char *path = active_cache[last]->name;
if (strncmp(path, src_w_slash, len_w_slash))
break;
}
free((char *)src_w_slash);
if (last - first < 1)
bad = "source directory is empty";
else {
int j, dst_len;
if (last - first > 0) {
source = xrealloc(source,
(argc + last - first)
* sizeof(char *));
destination = xrealloc(destination,
(argc + last - first)
* sizeof(char *));
modes = xrealloc(modes,
(argc + last - first)
* sizeof(enum update_mode));
}
dst = add_slash(dst);
dst_len = strlen(dst);
for (j = 0; j < last - first; j++) {
const char *path =
active_cache[first + j]->name;
source[argc + j] = path;
destination[argc + j] =
prefix_path(dst, dst_len,
path + length + 1);
modes[argc + j] = INDEX;
}
argc += last - first;
}
} else if (cache_name_pos(src, length) < 0)
bad = "not under version control";
else if (lstat(dst, &st) == 0) {
bad = "destination exists";
if (force) {
/*
* only files can overwrite each other:
* check both source and destination
*/
if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
warning("%s; will overwrite!", bad);
bad = NULL;
} else
bad = "Cannot overwrite";
}
} else if (string_list_has_string(&src_for_dst, dst))
bad = "multiple sources for the same target";
else
string_list_insert(&src_for_dst, dst);
if (bad) {
if (ignore_errors) {
if (--argc > 0) {
memmove(source + i, source + i + 1,
(argc - i) * sizeof(char *));
memmove(destination + i,
destination + i + 1,
(argc - i) * sizeof(char *));
i--;
}
} else
die ("%s, source=%s, destination=%s",
bad, src, dst);
}
}
for (i = 0; i < argc; i++) {
const char *src = source[i], *dst = destination[i];
enum update_mode mode = modes[i];
int pos;
if (show_only || verbose)
printf("Renaming %s to %s\n", src, dst);
if (!show_only && mode != INDEX &&
rename(src, dst) < 0 && !ignore_errors)
die_errno ("renaming '%s' failed", src);
if (mode == WORKING_DIRECTORY)
continue;
pos = cache_name_pos(src, strlen(src));
assert(pos >= 0);
if (!show_only)
rename_cache_entry_at(pos, dst);
}
if (active_cache_changed) {
if (write_cache(newfd, active_cache, active_nr) ||
commit_locked_index(&lock_file))
die("Unable to write new index file");
}
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;
char set_executable_bit = 0;
struct refresh_params refresh_args = {0, &has_errors};
int lock_error = 0;
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,
"continue refresh even when index needs update",
REFRESH_QUIET),
OPT_BIT(0, "ignore-submodules", &refresh_args.flags,
"refresh: ignore submodules",
REFRESH_IGNORE_SUBMODULES),
OPT_SET_INT(0, "add", &allow_add,
"do not ignore new files", 1),
OPT_SET_INT(0, "replace", &allow_replace,
"let files replace directories and vice-versa", 1),
OPT_SET_INT(0, "remove", &allow_remove,
"notice files missing from worktree", 1),
OPT_BIT(0, "unmerged", &refresh_args.flags,
"refresh even if index contains unmerged entries",
REFRESH_UNMERGED),
{OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL,
"refresh stat information",
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
refresh_callback},
{OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL,
"like --refresh, but ignore assume-unchanged setting",
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
really_refresh_callback},
{OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL,
"<mode> <object> <path>",
"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",
"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,
"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,
"clear assumed-unchanged bit",
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
{OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL,
"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,
"clear skip-worktree bit",
PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG},
OPT_SET_INT(0, "info-only", &info_only,
"add to index only; do not add content to object database", 1),
OPT_SET_INT(0, "force-remove", &force_remove,
"remove named paths even if present in worktree", 1),
OPT_SET_INT('z', NULL, &line_termination,
"with --stdin: input lines are terminated by null bytes", '\0'),
{OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL,
"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,
"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,
"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,
"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,
"ignore files missing from worktree",
REFRESH_IGNORE_MISSING),
OPT_SET_INT(0, "verbose", &verbose,
"report actions to standard output", 1),
{OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL,
"(for porcelains) forget saved unresolved conflicts",
PARSE_OPT_NOARG | PARSE_OPT_NONEG,
resolve_undo_clear_callback},
OPT_END()
};
if (argc == 2 && !strcmp(argv[1], "-h"))
usage(update_index_usage[0]);
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, NULL, 0);
if (set_executable_bit)
chmod_path(set_executable_bit, p);
if (p < path || p > path + strlen(path))
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 (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);
}
if (active_cache_changed) {
if (newfd < 0) {
if (refresh_args.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;
}
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;
}
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;
}
}
