mirror of
https://github.com/git/git
synced 2024-09-12 21:04:12 +00:00
cde8ea9c66
Compression programs like zip, gzip, bzip2 and xz allow to adjust the trade-off between CPU cost and size gain with numerical options from -1 for fast compression and -9 for high compression ratio. zip also accepts -0 for storing files verbatim. git archive directly support these single-digit compression levels for ZIP output and passes them to filters like gzip. Zstandard additionally supports compression level options -10 to -19, or up to -22 with --ultra. This *seems* to work with git archive in most cases, e.g. it will produce an archive with -19 without complaining, but since it only supports single-digit compression level options this is the same as -1 -9 and thus -9. Allow git archive to accept multi-digit compression levels to support the full range supported by zstd. Explicitly reject them for the ZIP format, as otherwise deflateInit2() would just fail with a somewhat cryptic "stream consistency error". Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
#ifndef ARCHIVE_H
|
|
#define ARCHIVE_H
|
|
|
|
#include "cache.h"
|
|
#include "pathspec.h"
|
|
|
|
struct repository;
|
|
|
|
struct archiver_args {
|
|
struct repository *repo;
|
|
const char *refname;
|
|
const char *prefix;
|
|
const char *base;
|
|
size_t baselen;
|
|
struct tree *tree;
|
|
const struct object_id *commit_oid;
|
|
const struct commit *commit;
|
|
timestamp_t time;
|
|
struct pathspec pathspec;
|
|
unsigned int verbose : 1;
|
|
unsigned int worktree_attributes : 1;
|
|
unsigned int convert : 1;
|
|
int compression_level;
|
|
struct string_list extra_files;
|
|
};
|
|
|
|
/* main api */
|
|
|
|
int write_archive(int argc, const char **argv, const char *prefix,
|
|
struct repository *repo,
|
|
const char *name_hint, int remote);
|
|
|
|
const char *archive_format_from_filename(const char *filename);
|
|
|
|
/* archive backend stuff */
|
|
|
|
#define ARCHIVER_WANT_COMPRESSION_LEVELS 1
|
|
#define ARCHIVER_REMOTE 2
|
|
#define ARCHIVER_HIGH_COMPRESSION_LEVELS 4
|
|
struct archiver {
|
|
const char *name;
|
|
int (*write_archive)(const struct archiver *, struct archiver_args *);
|
|
unsigned flags;
|
|
void *data;
|
|
};
|
|
void register_archiver(struct archiver *);
|
|
|
|
void init_tar_archiver(void);
|
|
void init_zip_archiver(void);
|
|
void init_archivers(void);
|
|
|
|
typedef int (*write_archive_entry_fn_t)(struct archiver_args *args,
|
|
const struct object_id *oid,
|
|
const char *path, size_t pathlen,
|
|
unsigned int mode,
|
|
void *buffer, unsigned long size);
|
|
|
|
int write_archive_entries(struct archiver_args *args, write_archive_entry_fn_t write_entry);
|
|
|
|
#endif /* ARCHIVE_H */
|