git/archive.h

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Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
#ifndef ARCHIVE_H
#define ARCHIVE_H
#include "pathspec.h"
Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
struct archiver_args {
const char *base;
size_t baselen;
Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
struct tree *tree;
const unsigned char *commit_sha1;
const struct commit *commit;
Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
time_t time;
struct pathspec pathspec;
unsigned int verbose : 1;
unsigned int worktree_attributes : 1;
unsigned int convert : 1;
int compression_level;
Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
};
#define ARCHIVER_WANT_COMPRESSION_LEVELS 1
#define ARCHIVER_REMOTE 2
struct archiver {
const char *name;
int (*write_archive)(const struct archiver *, struct archiver_args *);
unsigned flags;
void *data;
};
extern void register_archiver(struct archiver *);
Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
extern void init_tar_archiver(void);
extern void init_zip_archiver(void);
typedef int (*write_archive_entry_fn_t)(struct archiver_args *args,
const unsigned char *sha1,
const char *path, size_t pathlen,
unsigned int mode);
Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
extern int write_archive_entries(struct archiver_args *args, write_archive_entry_fn_t write_entry);
extern int write_archive(int argc, const char **argv, const char *prefix, int setup_prefix, const char *name_hint, int remote);
archive: move file extension format-guessing lower The process for guessing an archive output format based on the filename is something like this: a. parse --output in cmd_archive; check the filename against a static set of mapping heuristics (right now it just matches ".zip" for zip files). b. if found, stick a fake "--format=zip" at the beginning of the arguments list (if the user did specify a --format manually, the later option will override our fake one) c. if it's a remote call, ship the arguments to the remote (including the fake), which will call write_archive on their end d. if it's local, ship the arguments to write_archive locally There are two problems: 1. The set of mappings is static and at too high a level. The write_archive level is going to check config for user-defined formats, some of which will specify extensions. We need to delay lookup until those are parsed, so we can match against them. 2. For a remote archive call, our set of mappings (or formats) may not match the remote side's. This is OK in practice right now, because all versions of git understand "zip" and "tar". But as new formats are added, there is going to be a mismatch between what the client can do and what the remote server can do. To fix (1), this patch refactors the location guessing to happen at the write_archive level, instead of the cmd_archive level. So instead of sticking a fake --format field in the argv list, we actually pass a "name hint" down the callchain; this hint is used at the appropriate time to guess the format (if one hasn't been given already). This patch leaves (2) unfixed. The name_hint is converted to a "--format" option as before, and passed to the remote. This means the local side's idea of how extensions map to formats will take precedence. Another option would be to pass the name hint to the remote side and let the remote choose. This isn't a good idea for two reasons: 1. There's no room in the protocol for passing that information. We can pass a new argument, but older versions of git on the server will choke on it. 2. Letting the remote side decide creates a silent inconsistency in user experience. Consider the case that the locally installed git knows about the "tar.gz" format, but a remote server doesn't. Running "git archive -o foo.tar.gz" will use the tar.gz format. If we use --remote, and the local side chooses the format, then we send "--format=tar.gz" to the remote, which will complain about the unknown format. But if we let the remote side choose the format, then it will realize that it doesn't know about "tar.gz" and output uncompressed tar without even issuing a warning. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-22 05:24:48 +04:00
const char *archive_format_from_filename(const char *filename);
extern void *sha1_file_to_archive(const struct archiver_args *args,
const char *path, const unsigned char *sha1,
unsigned int mode, enum object_type *type,
unsigned long *sizep);
Add git-archive git-archive is a command to make TAR and ZIP archives of a git tree. It helps prevent a proliferation of git-{format}-tree commands. Instead of directly calling git-{tar,zip}-tree command, it defines a very simple API, that archiver should implement and register in "git-archive.c". This API is made up by 2 functions whose prototype is defined in "archive.h" file. - The first one is used to parse 'extra' parameters which have signification only for the specific archiver. That would allow different archive backends to have different kind of options. - The second one is used to ask to an archive backend to build the archive given some already resolved parameters. The main reason for making this API is to avoid using git-{tar,zip}-tree commands, hence making them useless. Maybe it's time for them to die ? It also implements remote operations by defining a very simple protocol: it first sends the name of the specific uploader followed the repository name (git-upload-tar git://example.org/repo.git). Then it sends options. It's done by sending a sequence of one argument per packet, with prefix "argument ", followed by a flush. The remote protocol is implemented in "git-archive.c" for client side and is triggered by "--remote=<repo>" option. For example, to fetch a TAR archive in a remote repo, you can issue: $ git archive --format=tar --remote=git://xxx/yyy/zzz.git HEAD We choose to not make a new command "git-fetch-archive" for example, avoind one more GIT command which should be nice for users (less commands to remember, keeps existing --remote option). Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-07 17:12:02 +04:00
#endif /* ARCHIVE_H */