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-rw-r--r--builtin/archive.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/builtin/archive.c b/builtin/archive.c
new file mode 100644
index 0000000..f094390
--- /dev/null
+++ b/builtin/archive.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2006 Franck Bui-Huu
+ * Copyright (c) 2006 Rene Scharfe
+ */
+#include "cache.h"
+#include "builtin.h"
+#include "archive.h"
+#include "transport.h"
+#include "parse-options.h"
+#include "pkt-line.h"
+#include "sideband.h"
+
+static void create_output_file(const char *output_file)
+{
+ int output_fd = xopen(output_file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
+ 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,
+ const char *name_hint)
+{
+ int fd[2], i, rv;
+ struct transport *transport;
+ struct remote *_remote;
+ struct packet_reader reader;
+
+ _remote = remote_get(remote);
+ if (!_remote->url[0])
+ die(_("git archive: Remote with no URL"));
+ transport = transport_get(_remote, _remote->url[0]);
+ transport_connect(transport, "git-upload-archive", exec, fd);
+
+ /*
+ * Inject a fake --format field at the beginning of the
+ * arguments, with the format inferred from our output
+ * filename. This way explicit --format options can override
+ * it.
+ */
+ if (name_hint) {
+ const char *format = archive_format_from_filename(name_hint);
+ if (format)
+ packet_write_fmt(fd[1], "argument --format=%s\n", format);
+ }
+ for (i = 1; i < argc; i++)
+ packet_write_fmt(fd[1], "argument %s\n", argv[i]);
+ packet_flush(fd[1]);
+
+ packet_reader_init(&reader, fd[0], NULL, 0,
+ PACKET_READ_CHOMP_NEWLINE |
+ PACKET_READ_DIE_ON_ERR_PACKET);
+
+ if (packet_reader_read(&reader) != PACKET_READ_NORMAL)
+ die(_("git archive: expected ACK/NAK, got a flush packet"));
+ if (strcmp(reader.line, "ACK")) {
+ if (starts_with(reader.line, "NACK "))
+ die(_("git archive: NACK %s"), reader.line + 5);
+ die(_("git archive: protocol error"));
+ }
+
+ if (packet_reader_read(&reader) != PACKET_READ_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);
+ rv |= transport_disconnect(transport);
+
+ return !!rv;
+}
+
+#define PARSE_OPT_KEEP_ALL ( PARSE_OPT_KEEP_DASHDASH | \
+ PARSE_OPT_KEEP_ARGV0 | \
+ PARSE_OPT_KEEP_UNKNOWN_OPT | \
+ 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;
+ struct option local_opts[] = {
+ OPT_FILENAME('o', "output", &output,
+ N_("write the archive to this file")),
+ OPT_STRING(0, "remote", &remote, N_("repo"),
+ N_("retrieve the archive from remote repository <repo>")),
+ OPT_STRING(0, "exec", &exec, N_("command"),
+ N_("path to the remote git-upload-archive command")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, local_opts, NULL,
+ PARSE_OPT_KEEP_ALL);
+
+ init_archivers();
+
+ if (output)
+ create_output_file(output);
+
+ if (remote)
+ return run_remote_archiver(argc, argv, remote, exec, output);
+
+ setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
+
+ return write_archive(argc, argv, prefix, the_repository, output, 0);
+}