mirror of
https://github.com/git/git
synced 2024-08-24 18:26:02 +00:00
![René Scharfe](/assets/img/avatar_default.png)
Commit 64edf4b2
cleaned up the initialization of git-archive,
at the cost of 'git-archive --list' now requiring a git repo.
This patch reverts the cleanup and documents the requirement
for this particular dirtyness in a test.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <junkio@cox.net>
264 lines
5.8 KiB
C
264 lines
5.8 KiB
C
/*
|
|
* Copyright (c) 2006 Franck Bui-Huu
|
|
* Copyright (c) 2006 Rene Scharfe
|
|
*/
|
|
#include "cache.h"
|
|
#include "builtin.h"
|
|
#include "archive.h"
|
|
#include "commit.h"
|
|
#include "tree-walk.h"
|
|
#include "exec_cmd.h"
|
|
#include "pkt-line.h"
|
|
#include "sideband.h"
|
|
|
|
static const char archive_usage[] = \
|
|
"git-archive --format=<fmt> [--prefix=<prefix>/] [--verbose] [<extra>] <tree-ish> [path...]";
|
|
|
|
static struct archiver_desc
|
|
{
|
|
const char *name;
|
|
write_archive_fn_t write_archive;
|
|
parse_extra_args_fn_t parse_extra;
|
|
} archivers[] = {
|
|
{ "tar", write_tar_archive, NULL },
|
|
{ "zip", write_zip_archive, parse_extra_zip_args },
|
|
};
|
|
|
|
static int run_remote_archiver(const char *remote, int argc,
|
|
const char **argv)
|
|
{
|
|
char *url, buf[LARGE_PACKET_MAX];
|
|
int fd[2], i, len, rv;
|
|
pid_t pid;
|
|
const char *exec = "git-upload-archive";
|
|
int exec_at = 0;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
if (!prefixcmp(arg, "--exec=")) {
|
|
if (exec_at)
|
|
die("multiple --exec specified");
|
|
exec = arg + 7;
|
|
exec_at = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
url = xstrdup(remote);
|
|
pid = git_connect(fd, url, exec);
|
|
if (pid < 0)
|
|
return pid;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
if (i == exec_at)
|
|
continue;
|
|
packet_write(fd[1], "argument %s\n", argv[i]);
|
|
}
|
|
packet_flush(fd[1]);
|
|
|
|
len = packet_read_line(fd[0], buf, sizeof(buf));
|
|
if (!len)
|
|
die("git-archive: expected ACK/NAK, got EOF");
|
|
if (buf[len-1] == '\n')
|
|
buf[--len] = 0;
|
|
if (strcmp(buf, "ACK")) {
|
|
if (len > 5 && !prefixcmp(buf, "NACK "))
|
|
die("git-archive: NACK %s", buf + 5);
|
|
die("git-archive: protocol error");
|
|
}
|
|
|
|
len = packet_read_line(fd[0], buf, sizeof(buf));
|
|
if (len)
|
|
die("git-archive: expected a flush");
|
|
|
|
/* Now, start reading from fd[0] and spit it out to stdout */
|
|
rv = recv_sideband("archive", fd[0], 1, 2);
|
|
close(fd[0]);
|
|
close(fd[1]);
|
|
rv |= finish_connect(pid);
|
|
|
|
return !!rv;
|
|
}
|
|
|
|
static int init_archiver(const char *name, struct archiver *ar)
|
|
{
|
|
int rv = -1, i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(archivers); i++) {
|
|
if (!strcmp(name, archivers[i].name)) {
|
|
memset(ar, 0, sizeof(*ar));
|
|
ar->name = archivers[i].name;
|
|
ar->write_archive = archivers[i].write_archive;
|
|
ar->parse_extra = archivers[i].parse_extra;
|
|
rv = 0;
|
|
break;
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
void parse_pathspec_arg(const char **pathspec, struct archiver_args *ar_args)
|
|
{
|
|
ar_args->pathspec = get_pathspec(ar_args->base, pathspec);
|
|
}
|
|
|
|
void parse_treeish_arg(const char **argv, struct archiver_args *ar_args,
|
|
const char *prefix)
|
|
{
|
|
const char *name = argv[0];
|
|
const unsigned char *commit_sha1;
|
|
time_t archive_time;
|
|
struct tree *tree;
|
|
struct commit *commit;
|
|
unsigned char sha1[20];
|
|
|
|
if (get_sha1(name, sha1))
|
|
die("Not a valid object name");
|
|
|
|
commit = lookup_commit_reference_gently(sha1, 1);
|
|
if (commit) {
|
|
commit_sha1 = commit->object.sha1;
|
|
archive_time = commit->date;
|
|
} else {
|
|
commit_sha1 = NULL;
|
|
archive_time = time(NULL);
|
|
}
|
|
|
|
tree = parse_tree_indirect(sha1);
|
|
if (tree == NULL)
|
|
die("not a tree object");
|
|
|
|
if (prefix) {
|
|
unsigned char tree_sha1[20];
|
|
unsigned int mode;
|
|
int err;
|
|
|
|
err = get_tree_entry(tree->object.sha1, prefix,
|
|
tree_sha1, &mode);
|
|
if (err || !S_ISDIR(mode))
|
|
die("current working directory is untracked");
|
|
|
|
tree = parse_tree_indirect(tree_sha1);
|
|
}
|
|
ar_args->tree = tree;
|
|
ar_args->commit_sha1 = commit_sha1;
|
|
ar_args->time = archive_time;
|
|
}
|
|
|
|
int parse_archive_args(int argc, const char **argv, struct archiver *ar)
|
|
{
|
|
const char *extra_argv[MAX_EXTRA_ARGS];
|
|
int extra_argc = 0;
|
|
const char *format = NULL; /* might want to default to "tar" */
|
|
const char *base = "";
|
|
int verbose = 0;
|
|
int i;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
const char *arg = argv[i];
|
|
|
|
if (!strcmp(arg, "--list") || !strcmp(arg, "-l")) {
|
|
for (i = 0; i < ARRAY_SIZE(archivers); i++)
|
|
printf("%s\n", archivers[i].name);
|
|
exit(0);
|
|
}
|
|
if (!strcmp(arg, "--verbose") || !strcmp(arg, "-v")) {
|
|
verbose = 1;
|
|
continue;
|
|
}
|
|
if (!prefixcmp(arg, "--format=")) {
|
|
format = arg + 9;
|
|
continue;
|
|
}
|
|
if (!prefixcmp(arg, "--prefix=")) {
|
|
base = arg + 9;
|
|
continue;
|
|
}
|
|
if (!strcmp(arg, "--")) {
|
|
i++;
|
|
break;
|
|
}
|
|
if (arg[0] == '-') {
|
|
if (extra_argc > MAX_EXTRA_ARGS - 1)
|
|
die("Too many extra options");
|
|
extra_argv[extra_argc++] = arg;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* We need at least one parameter -- tree-ish */
|
|
if (argc - 1 < i)
|
|
usage(archive_usage);
|
|
if (!format)
|
|
die("You must specify an archive format");
|
|
if (init_archiver(format, ar) < 0)
|
|
die("Unknown archive format '%s'", format);
|
|
|
|
if (extra_argc) {
|
|
if (!ar->parse_extra)
|
|
die("'%s' format does not handle %s",
|
|
ar->name, extra_argv[0]);
|
|
ar->args.extra = ar->parse_extra(extra_argc, extra_argv);
|
|
}
|
|
ar->args.verbose = verbose;
|
|
ar->args.base = base;
|
|
|
|
return i;
|
|
}
|
|
|
|
static const char *extract_remote_arg(int *ac, const char **av)
|
|
{
|
|
int ix, iy, cnt = *ac;
|
|
int no_more_options = 0;
|
|
const char *remote = NULL;
|
|
|
|
for (ix = iy = 1; ix < cnt; ix++) {
|
|
const char *arg = av[ix];
|
|
if (!strcmp(arg, "--"))
|
|
no_more_options = 1;
|
|
if (!no_more_options) {
|
|
if (!prefixcmp(arg, "--remote=")) {
|
|
if (remote)
|
|
die("Multiple --remote specified");
|
|
remote = arg + 9;
|
|
continue;
|
|
}
|
|
if (arg[0] != '-')
|
|
no_more_options = 1;
|
|
}
|
|
if (ix != iy)
|
|
av[iy] = arg;
|
|
iy++;
|
|
}
|
|
if (remote) {
|
|
av[--cnt] = NULL;
|
|
*ac = cnt;
|
|
}
|
|
return remote;
|
|
}
|
|
|
|
int cmd_archive(int argc, const char **argv, const char *prefix)
|
|
{
|
|
struct archiver ar;
|
|
int tree_idx;
|
|
const char *remote = NULL;
|
|
|
|
remote = extract_remote_arg(&argc, argv);
|
|
if (remote)
|
|
return run_remote_archiver(remote, argc, argv);
|
|
|
|
setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
|
|
|
|
memset(&ar, 0, sizeof(ar));
|
|
tree_idx = parse_archive_args(argc, argv, &ar);
|
|
if (prefix == NULL)
|
|
prefix = setup_git_directory();
|
|
|
|
argv += tree_idx;
|
|
parse_treeish_arg(argv, &ar.args, prefix);
|
|
parse_pathspec_arg(argv + 1, &ar.args);
|
|
|
|
return ar.write_archive(&ar.args);
|
|
}
|