static void wt_status_collect_changes_index(struct wt_status *s)
{
struct rev_info rev;
struct setup_revision_opt opt;
init_revisions(&rev, NULL);
memset(&opt, 0, sizeof(opt));
opt.def = s->is_initial ? EMPTY_TREE_SHA1_HEX : s->reference;
setup_revisions(0, NULL, &rev, &opt);
DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
if (s->ignore_submodule_arg) {
handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
} else {
/*
* Unless the user did explicitly request a submodule ignore
* mode by passing a command line option we do not ignore any
* changed submodule SHA-1s when comparing index and HEAD, no
* matter what is configured. Otherwise the user won't be
* shown any submodules she manually added (and which are
* staged to be committed), which would be really confusing.
*/
handle_ignore_submodules_arg(&rev.diffopt, "dirty");
}
rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = wt_status_collect_updated_cb;
rev.diffopt.format_callback_data = s;
rev.diffopt.detect_rename = 1;
rev.diffopt.rename_limit = 200;
rev.diffopt.break_opt = 0;
copy_pathspec(&rev.prune_data, &s->pathspec);
run_diff_index(&rev, 1);
}
static void preload_index(struct index_state *index,
const struct pathspec *pathspec)
{
int threads, i, work, offset;
struct thread_data data[MAX_PARALLEL];
if (!core_preload_index)
return;
threads = index->cache_nr / THREAD_COST;
if (threads < 2)
return;
if (threads > MAX_PARALLEL)
threads = MAX_PARALLEL;
offset = 0;
work = DIV_ROUND_UP(index->cache_nr, threads);
memset(&data, 0, sizeof(data));
for (i = 0; i < threads; i++) {
struct thread_data *p = data+i;
p->index = index;
if (pathspec)
copy_pathspec(&p->pathspec, pathspec);
p->offset = offset;
p->nr = work;
offset += work;
if (pthread_create(&p->pthread, NULL, preload_thread, p))
die("unable to create threaded lstat");
}
for (i = 0; i < threads; i++) {
struct thread_data *p = data+i;
if (pthread_join(p->pthread, NULL))
die("unable to join threaded lstat");
}
}
int do_diff_cache(const struct object_id *tree_oid, struct diff_options *opt)
{
struct rev_info revs;
repo_init_revisions(the_repository, &revs, NULL);
copy_pathspec(&revs.prune_data, &opt->pathspec);
revs.diffopt = *opt;
if (diff_cache(&revs, tree_oid, NULL, 1))
exit(128);
return 0;
}
static void update_files_in_cache(const char *prefix,
const struct pathspec *pathspec,
struct update_callback_data *data)
{
struct rev_info rev;
init_revisions(&rev, prefix);
setup_revisions(0, NULL, &rev, NULL);
if (pathspec)
copy_pathspec(&rev.prune_data, pathspec);
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
rev.diffopt.format_callback_data = data;
rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
}
static void wt_status_collect_changes_worktree(struct wt_status *s)
{
struct rev_info rev;
init_revisions(&rev, NULL);
setup_revisions(0, NULL, &rev, NULL);
rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
DIFF_OPT_SET(&rev.diffopt, DIRTY_SUBMODULES);
if (!s->show_untracked_files)
DIFF_OPT_SET(&rev.diffopt, IGNORE_UNTRACKED_IN_SUBMODULES);
if (s->ignore_submodule_arg) {
DIFF_OPT_SET(&rev.diffopt, OVERRIDE_SUBMODULE_CONFIG);
handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
}
rev.diffopt.format_callback = wt_status_collect_changed_cb;
rev.diffopt.format_callback_data = s;
copy_pathspec(&rev.prune_data, &s->pathspec);
run_diff_files(&rev, 0);
}
static int read_from_tree(const struct pathspec *pathspec,
unsigned char *tree_sha1)
{
struct diff_options opt;
memset(&opt, 0, sizeof(opt));
copy_pathspec(&opt.pathspec, pathspec);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.format_callback = update_index_from_diff;
read_cache();
if (do_diff_cache(tree_sha1, &opt))
return 1;
diffcore_std(&opt);
diff_flush(&opt);
free_pathspec(&opt.pathspec);
return 0;
}
static int read_from_tree(const struct pathspec *pathspec,
struct object_id *tree_oid,
int intent_to_add)
{
struct diff_options opt;
memset(&opt, 0, sizeof(opt));
copy_pathspec(&opt.pathspec, pathspec);
opt.output_format = DIFF_FORMAT_CALLBACK;
opt.format_callback = update_index_from_diff;
opt.format_callback_data = &intent_to_add;
if (do_diff_cache(tree_oid->hash, &opt))
return 1;
diffcore_std(&opt);
diff_flush(&opt);
clear_pathspec(&opt.pathspec);
return 0;
}
int add_files_to_cache(const char *prefix,
const struct pathspec *pathspec, int flags)
{
struct update_callback_data data;
struct rev_info rev;
memset(&data, 0, sizeof(data));
data.flags = flags;
init_revisions(&rev, prefix);
setup_revisions(0, NULL, &rev, NULL);
if (pathspec)
copy_pathspec(&rev.prune_data, pathspec);
rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
rev.diffopt.format_callback = update_callback;
rev.diffopt.format_callback_data = &data;
rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
return !!data.add_errors;
}
static void preload_index(struct index_state *index,
const struct pathspec *pathspec)
{
int threads, i, work, offset;
struct thread_data data[MAX_PARALLEL];
uint64_t start = getnanotime();
if (!core_preload_index)
return;
threads = index->cache_nr / THREAD_COST;
if ((index->cache_nr > 1) && (threads < 2) && getenv("GIT_FORCE_PRELOAD_TEST"))
threads = 2;
if (threads < 2)
return;
if (threads > MAX_PARALLEL)
threads = MAX_PARALLEL;
offset = 0;
work = DIV_ROUND_UP(index->cache_nr, threads);
memset(&data, 0, sizeof(data));
for (i = 0; i < threads; i++) {
struct thread_data *p = data+i;
p->index = index;
if (pathspec)
copy_pathspec(&p->pathspec, pathspec);
p->offset = offset;
p->nr = work;
offset += work;
if (pthread_create(&p->pthread, NULL, preload_thread, p))
die("unable to create threaded lstat");
}
for (i = 0; i < threads; i++) {
struct thread_data *p = data+i;
if (pthread_join(p->pthread, NULL))
die("unable to join threaded lstat");
}
trace_performance_since(start, "preload index");
}
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;
}
