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db: make --no-cache disable the cache completely 

Including using files found from the cache, or creating the cache
directories with --initdb.

Based on patch by Paul Spooren.
cute-signatures
Timo Teräs 2022-03-28 11:10:03 +03:00
parent d0821b6d42
commit bc2b5b69b7
1 changed files with 11 additions and 4 deletions
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15
src/database.c
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@ -628,6 +628,7 @@ int apk_repo_format_item(struct apk_database *db, struct apk_repository *repo, s
int *fd, char *buf, size_t len)
{
if (repo->url == db->repos[APK_REPOSITORY_CACHED].url) {
if (db->cache_fd < 0) return db->cache_fd;
*fd = db->cache_fd;
return apk_pkg_format_cache_pkg(APK_BLOB_PTR_LEN(buf, len), pkg);
} else {
@ -651,6 +652,8 @@ int apk_cache_download(struct apk_database *db, struct apk_repository *repo,
int r;
time_t now = time(NULL);
if (db->cache_fd < 0) return db->cache_fd;
if (pkg != NULL)
r = apk_pkg_format_cache_pkg(APK_BLOB_BUF(cacheitem), pkg);
else
@ -1664,6 +1667,7 @@ int apk_db_open(struct apk_database *db, struct apk_ctx *ac)
apk_db_setup_repositories(db, ac->cache_dir);
db->root_fd = apk_ctx_fd_root(ac);
db->cache_fd = -APKE_CACHE_NOT_AVAILABLE;
db->permanent = !detect_tmpfs_root(db);
if (ac->root && ac->arch) {
@ -1720,9 +1724,11 @@ int apk_db_open(struct apk_database *db, struct apk_ctx *ac)
add_protected_paths_from_file, db);
/* figure out where to have the cache */
if ((r = setup_cache(db, ac)) < 0) {
apk_err(out, "Unable to remount cache read/write");
goto ret_r;
if (!(db->ctx->flags & APK_NO_CACHE)) {
if ((r = setup_cache(db, ac)) < 0) {
apk_err(out, "Unable to remount cache read/write");
goto ret_r;
}
}
if (db->ctx->flags & APK_OVERLAY_FROM_STDIN) {
@ -2116,7 +2122,7 @@ void apk_db_update_directory_permissions(struct apk_database *db)
int apk_db_cache_active(struct apk_database *db)
{
return db->cache_dir != apk_static_cache_dir;
return db->cache_fd > 0 && db->cache_dir != apk_static_cache_dir;
}
struct foreach_cache_item_ctx {
@ -2160,6 +2166,7 @@ int apk_db_cache_foreach_item(struct apk_database *db, apk_cache_item_cb cb)
{
struct foreach_cache_item_ctx ctx = { db, cb };
if (db->cache_fd < 0) return db->cache_fd;
return apk_dir_foreach_file(dup(db->cache_fd), foreach_cache_file, &ctx);
}