#include "cache.h"
#include "builtin.h"
#include "archive.h"
+#include "parse-options.h"
#include "pkt-line.h"
#include "sideband.h"
-static int run_remote_archiver(const char *remote, int argc,
- const char **argv)
+static void create_output_file(const char *output_file)
+{
+ int output_fd = open(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
+ if (output_fd < 0)
+ die_errno("could not create archive file '%s'", output_file);
+ if (output_fd != 1) {
+ if (dup2(output_fd, 1) < 0)
+ die_errno("could not redirect output");
+ else
+ close(output_fd);
+ }
+}
+
+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;
struct child_process *conn;
- const char *exec = "git-upload-archive";
- int exec_at = 0, exec_value_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;
- } else if (!strcmp(arg, "--exec")) {
- if (exec_at)
- die("multiple --exec specified");
- if (i + 1 >= argc)
- die("option --exec requires a value");
- exec = argv[i + 1];
- exec_at = i;
- exec_value_at = ++i;
- }
- }
url = xstrdup(remote);
conn = git_connect(fd, url, exec, 0);
- for (i = 1; i < argc; i++) {
- if (i == exec_at || i == exec_value_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));
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(conn);
return !!rv;
}
-static const char *extract_remote_arg(int *ac, const char **av)
+static const char *format_from_name(const char *filename)
{
- 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;
- } else if (!strcmp(arg, "--remote")) {
- if (remote)
- die("Multiple --remote specified");
- if (++ix >= cnt)
- die("option --remote requires a value");
- remote = av[ix];
- continue;
- }
- if (arg[0] != '-')
- no_more_options = 1;
- }
- if (ix != iy)
- av[iy] = arg;
- iy++;
- }
- if (remote) {
- av[--cnt] = NULL;
- *ac = cnt;
- }
- return remote;
+ const char *ext = strrchr(filename, '.');
+ if (!ext)
+ return NULL;
+ ext++;
+ if (!strcasecmp(ext, "zip"))
+ return "zip";
+ return NULL;
}
+#define PARSE_OPT_KEEP_ALL ( PARSE_OPT_KEEP_DASHDASH | \
+ PARSE_OPT_KEEP_ARGV0 | \
+ PARSE_OPT_KEEP_UNKNOWN | \
+ PARSE_OPT_NO_INTERNAL_HELP )
+
int cmd_archive(int argc, const char **argv, const char *prefix)
{
+ const char *exec = "git-upload-archive";
+ const char *output = NULL;
const char *remote = NULL;
+ const char *format = NULL;
+ struct option local_opts[] = {
+ OPT_STRING('o', "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_STRING(0, "format", &format, "fmt", "archive format"),
+ OPT_END()
+ };
+ char fmt_opt[32];
+
+ argc = parse_options(argc, argv, prefix, local_opts, NULL,
+ PARSE_OPT_KEEP_ALL);
+
+ if (output) {
+ create_output_file(output);
+ if (!format)
+ format = format_from_name(output);
+ }
+
+ if (format) {
+ sprintf(fmt_opt, "--format=%s", format);
+ /*
+ * This is safe because either --format and/or --output must
+ * have been given on the original command line if we get to
+ * this point, and parse_options() must have eaten at least
+ * one argument, i.e. we have enough room to append to argv[].
+ */
+ argv[argc++] = fmt_opt;
+ argv[argc] = NULL;
+ }
- 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);