#include "cache.h"
#include "builtin.h"
#include "archive.h"
-#include "commit.h"
-#include "tree-walk.h"
-#include "exec_cmd.h"
+#include "parse-options.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...]";
-
-static struct archiver_desc
+static void create_output_file(const char *output_file)
{
- 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 },
-};
+ int output_fd = open(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
+ if (output_fd < 0)
+ die("could not create archive file: %s ", output_file);
+ if (output_fd != 1) {
+ if (dup2(output_fd, 1) < 0)
+ die("could not redirect output");
+ else
+ close(output_fd);
+ }
+}
-static int run_remote_archiver(const char *remote, int argc,
- const char **argv)
+static int run_remote_archiver(int argc, const char **argv,
+ const char *remote, const char *exec)
{
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;
- }
- }
+ struct child_process *conn;
url = xstrdup(remote);
- pid = git_connect(fd, url, exec, 0);
- if (pid < 0)
- return pid;
+ conn = git_connect(fd, url, exec, 0);
- for (i = 1; i < argc; i++) {
- if (i == exec_at)
- continue;
+ for (i = 1; i < argc; i++)
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");
+ 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");
+ 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");
+ 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);
+ rv = recv_sideband("archive", fd[0], 1);
close(fd[0]);
close(fd[1]);
- rv |= finish_connect(pid);
+ rv |= finish_connect(conn);
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;
- }
+#define PARSE_OPT_KEEP_ALL ( PARSE_OPT_KEEP_DASHDASH | \
+ PARSE_OPT_KEEP_ARGV0 | \
+ PARSE_OPT_KEEP_UNKNOWN | \
+ PARSE_OPT_NO_INTERNAL_HELP )
- return buffer;
-}
-
-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;
- const 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->commit = commit;
- 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 = "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 (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 cmd_archive(int argc, const char **argv, const char *prefix)
{
- int ix, iy, cnt = *ac;
- int no_more_options = 0;
+ const char *exec = "git-upload-archive";
+ const char *output = NULL;
const char *remote = NULL;
+ struct option local_opts[] = {
+ OPT_STRING(0, "output", &output, "file",
+ "write the archive to this file"),
+ OPT_STRING(0, "remote", &remote, "repo",
+ "retrieve the archive from remote repository <repo>"),
+ OPT_STRING(0, "exec", &exec, "cmd",
+ "path to the remote git-upload-archive command"),
+ OPT_END()
+ };
- 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;
-}
+ argc = parse_options(argc, argv, local_opts, NULL, PARSE_OPT_KEEP_ALL);
-int cmd_archive(int argc, const char **argv, const char *prefix)
-{
- struct archiver ar;
- int tree_idx;
- const char *remote = NULL;
+ if (output)
+ create_output_file(output);
- remote = extract_remote_arg(&argc, argv);
if (remote)
- return run_remote_archiver(remote, argc, argv);
+ return run_remote_archiver(argc, argv, remote, exec);
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);
+ return write_archive(argc, argv, prefix, 1);
}