+++ /dev/null
-/*
- * Copyright (C) the libgit2 contributors. All rights reserved.
- *
- * This file is part of libgit2, distributed under the GNU GPL v2 with
- * a Linking Exception. For full terms see the included COPYING file.
- */
-
-#include "config_backend.h"
-
-#include "config.h"
-#include "config_entries.h"
-
-typedef struct {
- git_config_backend parent;
- git_mutex values_mutex;
- git_config_entries *entries;
- git_config_backend *source;
-} config_snapshot_backend;
-
-static int config_error_readonly(void)
-{
- git_error_set(GIT_ERROR_CONFIG, "this backend is read-only");
- return -1;
-}
-
-static int config_snapshot_iterator(
- git_config_iterator **iter,
- struct git_config_backend *backend)
-{
- config_snapshot_backend *b = GIT_CONTAINER_OF(backend, config_snapshot_backend, parent);
- git_config_entries *entries = NULL;
- int error;
-
- if ((error = git_config_entries_dup(&entries, b->entries)) < 0 ||
- (error = git_config_entries_iterator_new(iter, entries)) < 0)
- goto out;
-
-out:
- /* Let iterator delete duplicated entries when it's done */
- git_config_entries_free(entries);
- return error;
-}
-
-/* release the map containing the entry as an equivalent to freeing it */
-static void config_snapshot_entry_free(git_config_entry *entry)
-{
- git_config_entries *entries = (git_config_entries *) entry->payload;
- git_config_entries_free(entries);
-}
-
-static int config_snapshot_get(git_config_backend *cfg, const char *key, git_config_entry **out)
-{
- config_snapshot_backend *b = GIT_CONTAINER_OF(cfg, config_snapshot_backend, parent);
- git_config_entries *entries = NULL;
- git_config_entry *entry;
- int error = 0;
-
- if (git_mutex_lock(&b->values_mutex) < 0) {
- git_error_set(GIT_ERROR_OS, "failed to lock config backend");
- return -1;
- }
-
- entries = b->entries;
- git_config_entries_incref(entries);
- git_mutex_unlock(&b->values_mutex);
-
- if ((error = (git_config_entries_get(&entry, entries, key))) < 0) {
- git_config_entries_free(entries);
- return error;
- }
-
- entry->free = config_snapshot_entry_free;
- entry->payload = entries;
- *out = entry;
-
- return 0;
-}
-
-static int config_snapshot_set(git_config_backend *cfg, const char *name, const char *value)
-{
- GIT_UNUSED(cfg);
- GIT_UNUSED(name);
- GIT_UNUSED(value);
-
- return config_error_readonly();
-}
-
-static int config_snapshot_set_multivar(
- git_config_backend *cfg, const char *name, const char *regexp, const char *value)
-{
- GIT_UNUSED(cfg);
- GIT_UNUSED(name);
- GIT_UNUSED(regexp);
- GIT_UNUSED(value);
-
- return config_error_readonly();
-}
-
-static int config_snapshot_delete_multivar(git_config_backend *cfg, const char *name, const char *regexp)
-{
- GIT_UNUSED(cfg);
- GIT_UNUSED(name);
- GIT_UNUSED(regexp);
-
- return config_error_readonly();
-}
-
-static int config_snapshot_delete(git_config_backend *cfg, const char *name)
-{
- GIT_UNUSED(cfg);
- GIT_UNUSED(name);
-
- return config_error_readonly();
-}
-
-static int config_snapshot_lock(git_config_backend *_cfg)
-{
- GIT_UNUSED(_cfg);
-
- return config_error_readonly();
-}
-
-static int config_snapshot_unlock(git_config_backend *_cfg, int success)
-{
- GIT_UNUSED(_cfg);
- GIT_UNUSED(success);
-
- return config_error_readonly();
-}
-
-static void config_snapshot_free(git_config_backend *_backend)
-{
- config_snapshot_backend *backend = GIT_CONTAINER_OF(_backend, config_snapshot_backend, parent);
-
- if (backend == NULL)
- return;
-
- git_config_entries_free(backend->entries);
- git_mutex_free(&backend->values_mutex);
- git__free(backend);
-}
-
-static int config_snapshot_open(git_config_backend *cfg, git_config_level_t level, const git_repository *repo)
-{
- config_snapshot_backend *b = GIT_CONTAINER_OF(cfg, config_snapshot_backend, parent);
- git_config_entries *entries = NULL;
- git_config_iterator *it = NULL;
- git_config_entry *entry;
- int error;
-
- /* We're just copying data, don't care about the level or repo*/
- GIT_UNUSED(level);
- GIT_UNUSED(repo);
-
- if ((error = git_config_entries_new(&entries)) < 0 ||
- (error = b->source->iterator(&it, b->source)) < 0)
- goto out;
-
- while ((error = git_config_next(&entry, it)) == 0)
- if ((error = git_config_entries_dup_entry(entries, entry)) < 0)
- goto out;
-
- if (error < 0) {
- if (error != GIT_ITEROVER)
- goto out;
- error = 0;
- }
-
- b->entries = entries;
-
-out:
- git_config_iterator_free(it);
- if (error)
- git_config_entries_free(entries);
- return error;
-}
-
-int git_config_backend_snapshot(git_config_backend **out, git_config_backend *source)
-{
- config_snapshot_backend *backend;
-
- backend = git__calloc(1, sizeof(config_snapshot_backend));
- GIT_ERROR_CHECK_ALLOC(backend);
-
- backend->parent.version = GIT_CONFIG_BACKEND_VERSION;
- git_mutex_init(&backend->values_mutex);
-
- backend->source = source;
-
- backend->parent.readonly = 1;
- backend->parent.version = GIT_CONFIG_BACKEND_VERSION;
- backend->parent.open = config_snapshot_open;
- backend->parent.get = config_snapshot_get;
- backend->parent.set = config_snapshot_set;
- backend->parent.set_multivar = config_snapshot_set_multivar;
- backend->parent.snapshot = git_config_backend_snapshot;
- backend->parent.del = config_snapshot_delete;
- backend->parent.del_multivar = config_snapshot_delete_multivar;
- backend->parent.iterator = config_snapshot_iterator;
- backend->parent.lock = config_snapshot_lock;
- backend->parent.unlock = config_snapshot_unlock;
- backend->parent.free = config_snapshot_free;
-
- *out = &backend->parent;
-
- return 0;
-}
projects / libgit2.git / blobdiff