db: prepare database reading for layers
Timo Teräs
parent
be4ce40797
commit
9e4dd29f54
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@ -115,6 +115,10 @@ struct apk_repository {
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apk_blob_t description;
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};
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#define APK_DB_LAYER_ROOT 0
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#define APK_DB_LAYER_UVOL 1
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#define APK_DB_LAYER_NUM 2
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#define APK_REPOSITORY_CACHED 0
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#define APK_REPOSITORY_FIRST_CONFIGURED 1
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@ -138,6 +142,7 @@ struct apk_database {
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unsigned int repo_update_errors, repo_update_counter;
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unsigned int pending_triggers;
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unsigned int extract_flags;
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unsigned int active_layers;
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int performing_self_upgrade : 1;
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int permanent : 1;
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int autoupdate : 1;
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@ -189,6 +194,7 @@ struct apk_db_dir *apk_db_dir_query(struct apk_database *db, apk_blob_t name);
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struct apk_db_file *apk_db_file_query(struct apk_database *db,
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apk_blob_t dir, apk_blob_t name);
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const char *apk_db_layer_name(int layer);
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void apk_db_init(struct apk_database *db);
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int apk_db_open(struct apk_database *db, struct apk_ctx *ctx);
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void apk_db_close(struct apk_database *db);
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@ -93,6 +93,7 @@ struct apk_package {
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unsigned marked : 1;
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unsigned uninstallable : 1;
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unsigned cached_non_repository : 1;
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unsigned layer : 4;
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struct apk_checksum csum;
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};
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APK_ARRAY(apk_package_array, struct apk_package *);
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@ -13,8 +13,6 @@
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#include "apk_version.h"
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#include "apk_print.h"
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extern const char * const apk_installed_file;
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static void print_policy(struct apk_database *db, const char *match, struct apk_name *name, void *ctx)
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{
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struct apk_out *out = &db->ctx->out;
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@ -44,8 +42,8 @@ zlib1g policy:
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if (num++ == 0)
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apk_out(out, "%s policy:", name->name);
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apk_out(out, " " BLOB_FMT ":", BLOB_PRINTF(*p->version));
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if (p->pkg->ipkg != NULL)
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apk_out(out, " %s", apk_installed_file);
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if (p->pkg->ipkg)
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apk_out(out, " %s/installed", apk_db_layer_name(p->pkg->layer));
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for (i = 0; i < db->num_repos; i++) {
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repo = &db->repos[i];
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if (!(BIT(i) & p->pkg->repos))
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@ -56,9 +56,6 @@ static const char * const apk_static_cache_dir = "var/cache/apk";
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static const char * const apk_world_file = "etc/apk/world";
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static const char * const apk_arch_file = "etc/apk/arch";
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static const char * const apk_lock_file = "lib/apk/db/lock";
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static const char * const apk_scripts_file = "lib/apk/db/scripts.tar";
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static const char * const apk_triggers_file = "lib/apk/db/triggers";
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const char * const apk_installed_file = "lib/apk/db/installed";
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static struct apk_db_acl *apk_default_acl_dir, *apk_default_acl_file;
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@ -759,7 +756,7 @@ err:
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return apk_istream_close(is);
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}
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int apk_db_index_read(struct apk_database *db, struct apk_istream *is, int repo)
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static int apk_db_fdb_read(struct apk_database *db, struct apk_istream *is, int repo, unsigned layer)
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{
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struct apk_out *out = &db->ctx->out;
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struct apk_package *pkg = NULL;
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@ -812,6 +809,7 @@ int apk_db_index_read(struct apk_database *db, struct apk_istream *is, int repo)
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/* If no package, create new */
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if (pkg == NULL) {
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pkg = apk_pkg_new();
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pkg->layer = layer;
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ipkg = NULL;
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diri = NULL;
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file_diri_node = NULL;
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@ -911,6 +909,11 @@ err_fmt:
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return apk_istream_close(is);
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}
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int apk_db_index_read(struct apk_database *db, struct apk_istream *is, int repo)
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{
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return apk_db_fdb_read(db, is, repo, 0);
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}
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static void apk_blob_push_db_acl(apk_blob_t *b, char field, struct apk_db_acl *acl)
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{
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char hdr[2] = { field, ':' };
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@ -1171,21 +1174,29 @@ static int apk_db_triggers_read(struct apk_database *db, struct apk_istream *is)
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return apk_istream_close(is);
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}
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static int apk_db_read_state(struct apk_database *db, int flags)
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static int apk_db_read_layer(struct apk_database *db, unsigned layer)
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{
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apk_blob_t blob, world;
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int r, ret = 0;
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int r, fd, ret = 0, flags = db->ctx->open_flags;
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/* Read:
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* 1. /etc/apk/world
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* 1. world
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* 2. installed packages db
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* 3. triggers db
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* 4. scripts db
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*/
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fd = openat(db->root_fd, apk_db_layer_name(layer), O_RDONLY | O_CLOEXEC);
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if (fd < 0) return -errno;
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if (!(flags & APK_OPENF_NO_WORLD)) {
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blob = world = apk_blob_from_file(db->root_fd, apk_world_file);
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if (!APK_BLOB_IS_NULL(blob)) {
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blob = apk_blob_trim(blob);
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if (layer == APK_DB_LAYER_ROOT)
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world = apk_blob_from_file(db->root_fd, apk_world_file);
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else
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world = apk_blob_from_file(fd, "world");
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if (!APK_BLOB_IS_NULL(world)) {
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blob = apk_blob_trim(world);
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apk_blob_pull_deps(&blob, db, &db->world);
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free(world.ptr);
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} else {
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@ -1194,18 +1205,19 @@ static int apk_db_read_state(struct apk_database *db, int flags)
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}
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if (!(flags & APK_OPENF_NO_INSTALLED)) {
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r = apk_db_index_read(db, apk_istream_from_file(db->root_fd, apk_installed_file), -1);
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if (r && r != -ENOENT) ret = r;
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r = apk_db_triggers_read(db, apk_istream_from_file(db->root_fd, apk_triggers_file));
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if (r && r != -ENOENT) ret = r;
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r = apk_db_fdb_read(db, apk_istream_from_file(fd, "installed"), -1, layer);
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if (!ret && r != -ENOENT) ret = r;
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r = apk_db_triggers_read(db, apk_istream_from_file(fd, "triggers"));
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if (!ret && r != -ENOENT) ret = r;
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}
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if (!(flags & APK_OPENF_NO_SCRIPTS)) {
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r = apk_tar_parse(apk_istream_from_file(db->root_fd, apk_scripts_file),
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r = apk_tar_parse(apk_istream_from_file(fd, "scripts.tar"),
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apk_read_script_archive_entry, db, db->id_cache);
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if (r && r != -ENOENT) ret = r;
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if (!ret && r != -ENOENT) ret = r;
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}
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close(fd);
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return ret;
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}
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@ -1616,6 +1628,17 @@ static void unmount_proc(struct apk_database *db)
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}
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#endif
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const char *apk_db_layer_name(int layer)
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{
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switch (layer) {
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case APK_DB_LAYER_ROOT: return "lib/apk/db";
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case APK_DB_LAYER_UVOL: return "lib/apk/db-uvol";
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default:
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assert("invalid layer");
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return 0;
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}
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}
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void apk_db_init(struct apk_database *db)
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{
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memset(db, 0, sizeof(*db));
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@ -1637,7 +1660,7 @@ int apk_db_open(struct apk_database *db, struct apk_ctx *ac)
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struct apk_out *out = &ac->out;
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const char *msg = NULL;
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apk_blob_t blob;
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int r;
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int r, i;
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apk_default_acl_dir = apk_db_acl_atomize(db, 0755, 0, 0);
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apk_default_acl_file = apk_db_acl_atomize(db, 0644, 0, 0);
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@ -1721,10 +1744,15 @@ int apk_db_open(struct apk_database *db, struct apk_ctx *ac)
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apk_db_read_overlay(db, apk_istream_from_fd(STDIN_FILENO));
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}
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r = apk_db_read_state(db, ac->open_flags);
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if (r != 0 && !(r == -ENOENT && (ac->open_flags & APK_OPENF_CREATE))) {
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msg = "Unable to read database state";
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goto ret_r;
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for (i = 0; i < APK_DB_LAYER_NUM; i++) {
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r = apk_db_read_layer(db, i);
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if (r) {
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if (i != 0) continue;
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if (r == -ENOENT && (ac->open_flags & APK_OPENF_CREATE)) continue;
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msg = "Unable to read database";
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goto ret_r;
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}
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db->active_layers |= BIT(i);
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}
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if (!(ac->open_flags & APK_OPENF_NO_INSTALLED_REPO)) {
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