/* lookup submodule or return ENOTFOUND if it doesn't exist */
static int submodule_lookup(
git_submodule **out,
git_submodule_cache *cache,
const char *name,
const char *alternate)
{
khiter_t pos;
/* lock cache */
pos = git_strmap_lookup_index(cache->submodules, name);
if (!git_strmap_valid_index(cache->submodules, pos) && alternate)
pos = git_strmap_lookup_index(cache->submodules, alternate);
if (!git_strmap_valid_index(cache->submodules, pos)) {
/* unlock cache */
return GIT_ENOTFOUND; /* don't set error - caller will cope */
}
if (out != NULL) {
git_submodule *sm = git_strmap_value_at(cache->submodules, pos);
GIT_REFCOUNT_INC(sm);
*out = sm;
}
/* unlock cache */
return 0;
}
static int submodules_from_index(git_strmap *map, git_index *idx)
{
int error;
git_iterator *i;
const git_index_entry *entry;
if ((error = git_iterator_for_index(&i, idx, 0, NULL, NULL)) < 0)
return error;
while (!(error = git_iterator_advance(&entry, i))) {
khiter_t pos = git_strmap_lookup_index(map, entry->path);
git_submodule *sm;
if (git_strmap_valid_index(map, pos)) {
sm = git_strmap_value_at(map, pos);
if (S_ISGITLINK(entry->mode))
submodule_update_from_index_entry(sm, entry);
else
sm->flags |= GIT_SUBMODULE_STATUS__INDEX_NOT_SUBMODULE;
} else if (S_ISGITLINK(entry->mode)) {
if (!submodule_get_or_create(&sm, git_index_owner(idx), map, entry->path)) {
submodule_update_from_index_entry(sm, entry);
git_submodule_free(sm);
}
}
}
if (error == GIT_ITEROVER)
error = 0;
git_iterator_free(i);
return error;
}
static int submodule_get_or_create(git_submodule **out, git_repository *repo, git_strmap *map, const char *name)
{
int error = 0;
khiter_t pos;
git_submodule *sm = NULL;
pos = git_strmap_lookup_index(map, name);
if (git_strmap_valid_index(map, pos)) {
sm = git_strmap_value_at(map, pos);
goto done;
}
/* if the submodule doesn't exist yet in the map, create it */
if ((error = submodule_alloc(&sm, repo, name)) < 0)
return error;
pos = kh_put(str, map, sm->name, &error);
/* nobody can beat us to adding it */
assert(error != 0);
if (error < 0) {
git_submodule_free(sm);
return error;
}
git_strmap_set_value_at(map, pos, sm);
done:
GIT_REFCOUNT_INC(sm);
*out = sm;
return 0;
}
GIT_INLINE(git_attr_file_entry *) attr_cache_lookup_entry(
git_attr_cache *cache, const char *path)
{
khiter_t pos = git_strmap_lookup_index(cache->files, path);
if (git_strmap_valid_index(cache->files, pos))
return git_strmap_value_at(cache->files, pos);
else
return NULL;
}
static int find_locked(transaction_node **out, git_transaction *tx, const char *refname)
{
git_strmap_iter pos;
transaction_node *node;
pos = git_strmap_lookup_index(tx->locks, refname);
if (!git_strmap_valid_index(tx->locks, pos)) {
giterr_set(GITERR_REFERENCE, "the specified reference is not locked");
return GIT_ENOTFOUND;
}
node = git_strmap_value_at(tx->locks, pos);
*out = node;
return 0;
}
int git_submodule_lookup(
git_submodule **sm_ptr, /* NULL if user only wants to test existence */
git_repository *repo,
const char *name) /* trailing slash is allowed */
{
int error;
khiter_t pos;
assert(repo && name);
if ((error = load_submodule_config(repo)) < 0)
return error;
pos = git_strmap_lookup_index(repo->submodules, name);
if (!git_strmap_valid_index(repo->submodules, pos)) {
error = GIT_ENOTFOUND;
/* check if a plausible submodule exists at path */
if (git_repository_workdir(repo)) {
git_buf path = GIT_BUF_INIT;
if (git_buf_joinpath(&path, git_repository_workdir(repo), name) < 0)
return -1;
if (git_path_contains_dir(&path, DOT_GIT))
error = GIT_EEXISTS;
git_buf_free(&path);
}
giterr_set(GITERR_SUBMODULE, (error == GIT_ENOTFOUND) ?
"No submodule named '%s'" :
"Submodule '%s' has not been added yet", name);
return error;
}
if (sm_ptr)
*sm_ptr = git_strmap_value_at(repo->submodules, pos);
return 0;
}
bool git_attr_cache__is_cached(
git_repository *repo,
git_attr_file_source source,
const char *filename)
{
git_attr_cache *cache = git_repository_attr_cache(repo);
git_strmap *files;
khiter_t pos;
git_attr_file_entry *entry;
if (!cache || !(files = cache->files))
return false;
pos = git_strmap_lookup_index(files, filename);
if (!git_strmap_valid_index(files, pos))
return false;
entry = git_strmap_value_at(files, pos);
return entry && (entry->file[source] != NULL);
}
void git_strmap_delete(git_strmap *map, const char *key)
{
khiter_t idx = git_strmap_lookup_index(map, key);
if (git_strmap_valid_index(map, idx))
git_strmap_delete_at(map, idx);
}
static int git_diff_driver_load(
git_diff_driver **out, git_repository *repo, const char *driver_name)
{
int error = 0;
git_diff_driver_registry *reg;
git_diff_driver *drv = NULL;
size_t namelen = strlen(driver_name);
khiter_t pos;
git_config *cfg;
git_buf name = GIT_BUF_INIT;
const git_config_entry *ce;
bool found_driver = false;
if ((reg = git_repository_driver_registry(repo)) == NULL)
return -1;
pos = git_strmap_lookup_index(reg->drivers, driver_name);
if (git_strmap_valid_index(reg->drivers, pos)) {
*out = git_strmap_value_at(reg->drivers, pos);
return 0;
}
drv = git__calloc(1, sizeof(git_diff_driver) + namelen + 1);
GITERR_CHECK_ALLOC(drv);
drv->type = DIFF_DRIVER_AUTO;
memcpy(drv->name, driver_name, namelen);
/* if you can't read config for repo, just use default driver */
if (git_repository_config_snapshot(&cfg, repo) < 0) {
giterr_clear();
goto done;
}
if ((error = git_buf_printf(&name, "diff.%s.binary", driver_name)) < 0)
goto done;
switch (git_config__get_bool_force(cfg, name.ptr, -1)) {
case true:
/* if diff.<driver>.binary is true, just return the binary driver */
*out = &global_drivers[DIFF_DRIVER_BINARY];
goto done;
case false:
/* if diff.<driver>.binary is false, force binary checks off */
/* but still may have custom function context patterns, etc. */
drv->binary_flags = GIT_DIFF_FORCE_TEXT;
found_driver = true;
break;
default:
/* diff.<driver>.binary unspecified or "auto", so just continue */
break;
}
/* TODO: warn if diff.<name>.command or diff.<name>.textconv are set */
git_buf_truncate(&name, namelen + strlen("diff.."));
git_buf_put(&name, "xfuncname", strlen("xfuncname"));
if ((error = git_config_get_multivar_foreach(
cfg, name.ptr, NULL, diff_driver_xfuncname, drv)) < 0) {
if (error != GIT_ENOTFOUND)
goto done;
giterr_clear(); /* no diff.<driver>.xfuncname, so just continue */
}
git_buf_truncate(&name, namelen + strlen("diff.."));
git_buf_put(&name, "funcname", strlen("funcname"));
if ((error = git_config_get_multivar_foreach(
cfg, name.ptr, NULL, diff_driver_funcname, drv)) < 0) {
if (error != GIT_ENOTFOUND)
goto done;
giterr_clear(); /* no diff.<driver>.funcname, so just continue */
}
/* if we found any patterns, set driver type to use correct callback */
if (git_array_size(drv->fn_patterns) > 0) {
drv->type = DIFF_DRIVER_PATTERNLIST;
found_driver = true;
}
git_buf_truncate(&name, namelen + strlen("diff.."));
git_buf_put(&name, "wordregex", strlen("wordregex"));
if ((error = git_config__lookup_entry(&ce, cfg, name.ptr, false)) < 0)
goto done;
if (!ce || !ce->value)
/* no diff.<driver>.wordregex, so just continue */;
else if (!(error = regcomp(&drv->word_pattern, ce->value, REG_EXTENDED)))
found_driver = true;
else {
/* TODO: warn about bad regex instead of failure */
error = giterr_set_regex(&drv->word_pattern, error);
goto done;
}
/* TODO: look up diff.<driver>.algorithm to turn on minimal / patience
* diff in drv->other_flags
*/
/* if no driver config found at all, fall back on AUTO driver */
if (!found_driver)
goto done;
/* store driver in registry */
git_strmap_insert(reg->drivers, drv->name, drv, error);
if (error < 0)
goto done;
error = 0;
*out = drv;
done:
git_buf_free(&name);
git_config_free(cfg);
if (!*out) {
int error2 = git_diff_driver_builtin(out, reg, driver_name);
if (!error)
error = error2;
}
if (drv && drv != *out)
git_diff_driver_free(drv);
return error;
}