free(to_free);
}
-static 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 *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)
{
void *buffer;
+ const struct commit *commit = args->convert ? args->commit : NULL;
+ path += args->baselen;
buffer = read_sha1_file(sha1, type, sizep);
if (buffer && S_ISREG(mode)) {
struct strbuf buf = STRBUF_INIT;
write_archive_entry_fn_t write_entry = c->write_entry;
struct git_attr_check check[2];
const char *path_without_prefix;
- int convert = 0;
int err;
- enum object_type type;
- unsigned long size;
- void *buffer;
+ args->convert = 0;
strbuf_reset(&path);
strbuf_grow(&path, PATH_MAX);
strbuf_add(&path, args->base, args->baselen);
path_without_prefix = path.buf + args->baselen;
setup_archive_check(check);
- if (!git_checkattr(path_without_prefix, ARRAY_SIZE(check), check)) {
+ if (!git_check_attr(path_without_prefix, ARRAY_SIZE(check), check)) {
if (ATTR_TRUE(check[0].value))
return 0;
- convert = ATTR_TRUE(check[1].value);
+ args->convert = ATTR_TRUE(check[1].value);
}
if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
strbuf_addch(&path, '/');
if (args->verbose)
fprintf(stderr, "%.*s\n", (int)path.len, path.buf);
- err = write_entry(args, sha1, path.buf, path.len, mode, NULL, 0);
+ err = write_entry(args, sha1, path.buf, path.len, mode);
if (err)
return err;
return (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0);
}
- buffer = sha1_file_to_archive(path_without_prefix, sha1, mode,
- &type, &size, convert ? args->commit : NULL);
- if (!buffer)
- return error("cannot read %s", sha1_to_hex(sha1));
if (args->verbose)
fprintf(stderr, "%.*s\n", (int)path.len, path.buf);
- err = write_entry(args, sha1, path.buf, path.len, mode, buffer, size);
- free(buffer);
- return err;
+ return write_entry(args, sha1, path.buf, path.len, mode);
}
int write_archive_entries(struct archiver_args *args,
if (args->verbose)
fprintf(stderr, "%.*s\n", (int)len, args->base);
err = write_entry(args, args->tree->object.sha1, args->base,
- len, 040777, NULL, 0);
+ len, 040777);
if (err)
return err;
}
}
static void parse_treeish_arg(const char **argv,
- struct archiver_args *ar_args, const char *prefix)
+ struct archiver_args *ar_args, const char *prefix,
+ int remote)
{
const char *name = argv[0];
const unsigned char *commit_sha1;
const struct commit *commit;
unsigned char sha1[20];
+ /* Remotes are only allowed to fetch actual refs */
+ if (remote) {
+ char *ref = NULL;
+ const char *colon = strchr(name, ':');
+ int refnamelen = colon ? colon - name : strlen(name);
+
+ if (!dwim_ref(name, refnamelen, sha1, &ref))
+ die("no such ref: %.*s", refnamelen, name);
+ free(ref);
+ }
+
if (get_sha1(name, sha1))
die("Not a valid object name");
PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_HIDDEN, NULL, (p) }
static int parse_archive_args(int argc, const char **argv,
- const struct archiver **ar, struct archiver_args *args)
+ const struct archiver **ar, struct archiver_args *args,
+ const char *name_hint, int is_remote)
{
- const char *format = "tar";
+ const char *format = NULL;
const char *base = NULL;
const char *remote = NULL;
const char *exec = NULL;
"prepend prefix to each pathname in the archive"),
OPT_STRING('o', "output", &output, "file",
"write the archive to this file"),
- OPT_BOOLEAN(0, "worktree-attributes", &worktree_attributes,
+ OPT_BOOL(0, "worktree-attributes", &worktree_attributes,
"read .gitattributes in working directory"),
OPT__VERBOSE(&verbose, "report archived files on stderr"),
OPT__COMPR('0', &compression_level, "store only", 0),
OPT__COMPR_HIDDEN('8', &compression_level, 8),
OPT__COMPR('9', &compression_level, "compress better", 9),
OPT_GROUP(""),
- OPT_BOOLEAN('l', "list", &list,
+ OPT_BOOL('l', "list", &list,
"list supported archive formats"),
OPT_GROUP(""),
OPT_STRING(0, "remote", &remote, "repo",
if (list) {
for (i = 0; i < nr_archivers; i++)
- printf("%s\n", archivers[i]->name);
+ if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE)
+ printf("%s\n", archivers[i]->name);
exit(0);
}
+ if (!format && name_hint)
+ format = archive_format_from_filename(name_hint);
+ if (!format)
+ format = "tar";
+
/* We need at least one parameter -- tree-ish */
if (argc < 1)
usage_with_options(archive_usage, opts);
*ar = lookup_archiver(format);
- if (!*ar)
+ if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE)))
die("Unknown archive format '%s'", format);
args->compression_level = Z_DEFAULT_COMPRESSION;
}
int write_archive(int argc, const char **argv, const char *prefix,
- int setup_prefix)
+ int setup_prefix, const char *name_hint, int remote)
{
int nongit = 0;
const struct archiver *ar = NULL;
init_tar_archiver();
init_zip_archiver();
- argc = parse_archive_args(argc, argv, &ar, &args);
+ argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote);
if (nongit) {
/*
* We know this will die() with an error, so we could just
setup_git_directory();
}
- parse_treeish_arg(argv, &args, prefix);
+ parse_treeish_arg(argv, &args, prefix, remote);
parse_pathspec_arg(argv + 1, &args);
- return ar->write_archive(&args);
+ return ar->write_archive(ar, &args);
+}
+
+static int match_extension(const char *filename, const char *ext)
+{
+ int prefixlen = strlen(filename) - strlen(ext);
+
+ /*
+ * We need 1 character for the '.', and 1 character to ensure that the
+ * prefix is non-empty (k.e., we don't match .tar.gz with no actual
+ * filename).
+ */
+ if (prefixlen < 2 || filename[prefixlen-1] != '.')
+ return 0;
+ return !strcmp(filename + prefixlen, ext);
+}
+
+const char *archive_format_from_filename(const char *filename)
+{
+ int i;
+
+ for (i = 0; i < nr_archivers; i++)
+ if (match_extension(filename, archivers[i]->name))
+ return archivers[i]->name;
+ return NULL;
}