#include "archive.h"
#include "commit.h"
#include "tree-walk.h"
-#include "exec_cmd.h"
#include "pkt-line.h"
#include "sideband.h"
-#include "attr.h"
static const char archive_usage[] = \
-"git
-archive --format=<fmt> [--prefix=<prefix>/] [--verbose] [<extra>] <tree-ish> [path...]";
+"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 },
+#define USES_ZLIB_COMPRESSION 1
+
+const struct archiver archivers[] = {
+ { "tar", write_tar_archive },
+ { "zip", write_zip_archive, USES_ZLIB_COMPRESSION },
};
static int run_remote_archiver(const char *remote, int argc,
return !!rv;
}
-static void format_subst(const struct commit *commit,
- const char *src, size_t len,
- struct strbuf *buf)
-{
- char *to_free = NULL;
- struct strbuf fmt;
-
- if (src == buf->buf)
- to_free = strbuf_detach(buf, NULL);
- strbuf_init(&fmt, 0);
- for (;;) {
- const char *b, *c;
-
- b = memmem(src, len, "$Format:", 8);
- if (!b || src + len < b + 9)
- break;
- c = memchr(b + 8, '$', len - 8);
- if (!c)
- break;
-
- strbuf_reset(&fmt);
- strbuf_add(&fmt, b + 8, c - b - 8);
-
- strbuf_add(buf, src, b - src);
- format_commit_message(commit, fmt.buf, buf);
- len -= c + 1 - src;
- src = c + 1;
- }
- strbuf_add(buf, src, len);
- strbuf_release(&fmt);
- free(to_free);
-}
-
-static int convert_to_archive(const char *path,
- const void *src, size_t len,
- struct strbuf *buf,
- const struct commit *commit)
-{
- static struct git_attr *attr_export_subst;
- struct git_attr_check check[1];
-
- if (!commit)
- return 0;
-
- if (!attr_export_subst)
- attr_export_subst = git_attr("export-subst", 12);
-
- check[0].attr = attr_export_subst;
- if (git_checkattr(path, ARRAY_SIZE(check), check))
- return 0;
- if (!ATTR_TRUE(check[0].value))
- return 0;
-
- format_subst(commit, src, len, buf);
- return 1;
-}
-
-void *sha1_file_to_archive(const char *path, const unsigned char *sha1,
- unsigned int mode, enum object_type *type,
- unsigned long *sizep,
- const struct commit *commit)
-{
- void *buffer;
-
- buffer = read_sha1_file(sha1, type, sizep);
- if (buffer && S_ISREG(mode)) {
- struct strbuf buf;
- size_t size = 0;
-
- strbuf_init(&buf, 0);
- strbuf_attach(&buf, buffer, *sizep, *sizep + 1);
- convert_to_working_tree(path, buf.buf, buf.len, &buf);
- convert_to_archive(path, buf.buf, buf.len, &buf, commit);
- buffer = strbuf_detach(&buf, &size);
- *sizep = size;
- }
-
- return buffer;
-}
-
-static int init_archiver(const char *name, struct archiver *ar)
+static const struct archiver *lookup_archiver(const char *name)
{
- int rv = -1, i;
+ int 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;
- }
+ if (!strcmp(name, archivers[i].name))
+ return &archivers[i];
}
- return rv;
+ return NULL;
}
void parse_pathspec_arg(const char **pathspec, struct archiver_args *ar_args)
ar_args->time = archive_time;
}
-int parse_archive_args(int argc, const char **argv, struct archiver *ar)
+int parse_archive_args(int argc, const char **argv, const struct archiver **ar,
+ struct archiver_args *args)
{
- const char *extra_argv[MAX_EXTRA_ARGS];
- int extra_argc = 0;
const char *format = "tar";
const char *base = "";
+ int compression_level = -1;
int verbose = 0;
int i;
i++;
break;
}
- if (arg[0] == '-') {
- if (extra_argc > MAX_EXTRA_ARGS - 1)
- die("Too many extra options");
- extra_argv[extra_argc++] = arg;
+ if (arg[0] == '-' && isdigit(arg[1]) && arg[2] == '\0') {
+ compression_level = arg[1] - '0';
continue;
}
+ if (arg[0] == '-')
+ die("Unknown argument: %s", arg);
break;
}
/* We need at least one parameter -- tree-ish */
if (argc - 1 < i)
usage(archive_usage);
- if (init_archiver(format, ar) < 0)
+ *ar = lookup_archiver(format);
+ if (!*ar)
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);
+ args->compression_level = Z_DEFAULT_COMPRESSION;
+ if (compression_level != -1) {
+ if ((*ar)->flags & USES_ZLIB_COMPRESSION)
+ args->compression_level = compression_level;
+ else {
+ die("Argument not supported for format '%s': -%d",
+ format, compression_level);
+ }
}
- ar->args.verbose = verbose;
- ar->args.base = base;
+ args->verbose = verbose;
+ args->base = base;
+ args->baselen = strlen(base);
return i;
}
int cmd_archive(int argc, const char **argv, const char *prefix)
{
- struct archiver ar;
+ const struct archiver *ar = NULL;
+ struct archiver_args args;
int tree_idx;
const char *remote = NULL;
setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
- memset(&ar, 0, sizeof(ar));
- tree_idx = parse_archive_args(argc, argv, &ar);
+ tree_idx = parse_archive_args(argc, argv, &ar, &args);
if (prefix == NULL)
prefix = setup_git_directory();
argv += tree_idx;
- parse_treeish_arg(argv, &ar.args, prefix);
- parse_pathspec_arg(argv + 1, &ar.args);
+ parse_treeish_arg(argv, &args, prefix);
+ parse_pathspec_arg(argv + 1, &args);
- return ar.write_archive(&ar.args);
+ return ar->write_archive(&args);
}