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/*
* archive.h - tar archive operations for mkpkg
* https://rawnix.org
*
* Copyright (c) 2025 zorz@gmx.com
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifndef ARCHIVE_H
#define ARCHIVE_H
#include "util.h"
/* detect archive type by file extension */
int arc_is_archive(const char *filename);
/* mkpkg: extract upstream source tarball into destdir, --no-same-owner */
int arc_extract_src(const char *file, const char *destdir);
/* Observe bytes as they are written somewhere (e.g. hash them) */
typedef void (*arc_sink_fn)(const void *buf, size_t len, void *ctx);
/* mkpkg: walk pkgdir, sort entries, pipe to tar | <compressor> -> pkgfile.
* compression is one of "gz", "xz", "zst", "bz2", "lz" — selects the
* external compressor program. NULL or "" means "gz".
* When sink is non-NULL it is called with every chunk of compressed
* output as it is written to pkgfile (mkpkg uses this to compute the
* package SHA256 during the build instead of re-reading the file).
* Pass NULL/NULL to skip. */
int arc_create_pkg(const char *pkgfile, const char *pkgdir,
const char *compression,
arc_sink_fn sink, void *sink_ctx);
/* parse pkgfile name and list its contents */
int arc_list(const char *pkgfile, char **name, char **version,
strarray_t **files);
/* extract package into root, honouring keep/skip lists */
int arc_extract_pkg(const char *pkgfile, const char *root,
strarray_t *keep, strarray_t *skip);
/* extract one member of an archive into destdir (quiet).
* Goes through the same content-sniffed decompressor pipeline as
* full extraction. */
int arc_extract_single(const char *pkgfile, const char *member,
const char *destdir);
/* extract a specific list of members into destdir.
* tar takes member names as positional arguments, so this unpacks
* only what was asked for rather than the whole archive. */
int arc_extract_members(const char *pkgfile, strarray_t *members,
const char *destdir);
/* print footprint of a package archive to stdout */
int arc_footprint(const char *pkgfile);
#endif /* ARCHIVE_H */
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