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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:47:53 +0000
commitc8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch)
tree24e09d9f84dec336720cf393e156089ca2835791 /builtin/fetch-pack.c
parentInitial commit. (diff)
downloadgit-upstream.tar.xz
git-upstream.zip
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'builtin/fetch-pack.c')
-rw-r--r--builtin/fetch-pack.c277
1 files changed, 277 insertions, 0 deletions
diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
new file mode 100644
index 0000000..afe6793
--- /dev/null
+++ b/builtin/fetch-pack.c
@@ -0,0 +1,277 @@
+#include "builtin.h"
+#include "pkt-line.h"
+#include "fetch-pack.h"
+#include "remote.h"
+#include "connect.h"
+#include "oid-array.h"
+#include "protocol.h"
+
+static const char fetch_pack_usage[] =
+"git fetch-pack [--all] [--stdin] [--quiet | -q] [--keep | -k] [--thin] "
+"[--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] "
+"[--no-progress] [--diag-url] [-v] [<host>:]<directory> [<refs>...]";
+
+static void add_sought_entry(struct ref ***sought, int *nr, int *alloc,
+ const char *name)
+{
+ struct ref *ref;
+ struct object_id oid;
+ const char *p;
+
+ if (!parse_oid_hex(name, &oid, &p)) {
+ if (*p == ' ') {
+ /* <oid> <ref>, find refname */
+ name = p + 1;
+ } else if (*p == '\0') {
+ ; /* <oid>, leave oid as name */
+ } else {
+ /* <ref>, clear cruft from oid */
+ oidclr(&oid);
+ }
+ } else {
+ /* <ref>, clear cruft from get_oid_hex */
+ oidclr(&oid);
+ }
+
+ ref = alloc_ref(name);
+ oidcpy(&ref->old_oid, &oid);
+ (*nr)++;
+ ALLOC_GROW(*sought, *nr, *alloc);
+ (*sought)[*nr - 1] = ref;
+}
+
+int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
+{
+ int i, ret;
+ struct ref *ref = NULL;
+ const char *dest = NULL;
+ struct ref **sought = NULL;
+ int nr_sought = 0, alloc_sought = 0;
+ int fd[2];
+ struct string_list pack_lockfiles = STRING_LIST_INIT_DUP;
+ struct string_list *pack_lockfiles_ptr = NULL;
+ struct child_process *conn;
+ struct fetch_pack_args args;
+ struct oid_array shallow = OID_ARRAY_INIT;
+ struct string_list deepen_not = STRING_LIST_INIT_DUP;
+ struct packet_reader reader;
+ enum protocol_version version;
+
+ fetch_if_missing = 0;
+
+ packet_trace_identity("fetch-pack");
+
+ memset(&args, 0, sizeof(args));
+ list_objects_filter_init(&args.filter_options);
+ args.uploadpack = "git-upload-pack";
+
+ for (i = 1; i < argc && *argv[i] == '-'; i++) {
+ const char *arg = argv[i];
+
+ if (skip_prefix(arg, "--upload-pack=", &arg)) {
+ args.uploadpack = arg;
+ continue;
+ }
+ if (skip_prefix(arg, "--exec=", &arg)) {
+ args.uploadpack = arg;
+ continue;
+ }
+ if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
+ args.quiet = 1;
+ continue;
+ }
+ if (!strcmp("--keep", arg) || !strcmp("-k", arg)) {
+ args.lock_pack = args.keep_pack;
+ args.keep_pack = 1;
+ continue;
+ }
+ if (!strcmp("--thin", arg)) {
+ args.use_thin_pack = 1;
+ continue;
+ }
+ if (!strcmp("--include-tag", arg)) {
+ args.include_tag = 1;
+ continue;
+ }
+ if (!strcmp("--all", arg)) {
+ args.fetch_all = 1;
+ continue;
+ }
+ if (!strcmp("--stdin", arg)) {
+ args.stdin_refs = 1;
+ continue;
+ }
+ if (!strcmp("--diag-url", arg)) {
+ args.diag_url = 1;
+ continue;
+ }
+ if (!strcmp("-v", arg)) {
+ args.verbose = 1;
+ continue;
+ }
+ if (skip_prefix(arg, "--depth=", &arg)) {
+ args.depth = strtol(arg, NULL, 0);
+ continue;
+ }
+ if (skip_prefix(arg, "--shallow-since=", &arg)) {
+ args.deepen_since = xstrdup(arg);
+ continue;
+ }
+ if (skip_prefix(arg, "--shallow-exclude=", &arg)) {
+ string_list_append(&deepen_not, arg);
+ continue;
+ }
+ if (!strcmp(arg, "--deepen-relative")) {
+ args.deepen_relative = 1;
+ continue;
+ }
+ if (!strcmp("--no-progress", arg)) {
+ args.no_progress = 1;
+ continue;
+ }
+ if (!strcmp("--stateless-rpc", arg)) {
+ args.stateless_rpc = 1;
+ continue;
+ }
+ if (!strcmp("--lock-pack", arg)) {
+ args.lock_pack = 1;
+ pack_lockfiles_ptr = &pack_lockfiles;
+ continue;
+ }
+ if (!strcmp("--check-self-contained-and-connected", arg)) {
+ args.check_self_contained_and_connected = 1;
+ continue;
+ }
+ if (!strcmp("--cloning", arg)) {
+ args.cloning = 1;
+ continue;
+ }
+ if (!strcmp("--update-shallow", arg)) {
+ args.update_shallow = 1;
+ continue;
+ }
+ if (!strcmp("--from-promisor", arg)) {
+ args.from_promisor = 1;
+ continue;
+ }
+ if (!strcmp("--refetch", arg)) {
+ args.refetch = 1;
+ continue;
+ }
+ if (skip_prefix(arg, ("--filter="), &arg)) {
+ parse_list_objects_filter(&args.filter_options, arg);
+ continue;
+ }
+ if (!strcmp(arg, ("--no-filter"))) {
+ list_objects_filter_set_no_filter(&args.filter_options);
+ continue;
+ }
+ usage(fetch_pack_usage);
+ }
+ if (deepen_not.nr)
+ args.deepen_not = &deepen_not;
+
+ if (i < argc)
+ dest = argv[i++];
+ else
+ usage(fetch_pack_usage);
+
+ /*
+ * Copy refs from cmdline to growable list, then append any
+ * refs from the standard input:
+ */
+ for (; i < argc; i++)
+ add_sought_entry(&sought, &nr_sought, &alloc_sought, argv[i]);
+ if (args.stdin_refs) {
+ if (args.stateless_rpc) {
+ /* in stateless RPC mode we use pkt-line to read
+ * from stdin, until we get a flush packet
+ */
+ for (;;) {
+ char *line = packet_read_line(0, NULL);
+ if (!line)
+ break;
+ add_sought_entry(&sought, &nr_sought, &alloc_sought, line);
+ }
+ }
+ else {
+ /* read from stdin one ref per line, until EOF */
+ struct strbuf line = STRBUF_INIT;
+ while (strbuf_getline_lf(&line, stdin) != EOF)
+ add_sought_entry(&sought, &nr_sought, &alloc_sought, line.buf);
+ strbuf_release(&line);
+ }
+ }
+
+ if (args.stateless_rpc) {
+ conn = NULL;
+ fd[0] = 0;
+ fd[1] = 1;
+ } else {
+ int flags = args.verbose ? CONNECT_VERBOSE : 0;
+ if (args.diag_url)
+ flags |= CONNECT_DIAG_URL;
+ conn = git_connect(fd, dest, args.uploadpack,
+ flags);
+ if (!conn)
+ return args.diag_url ? 0 : 1;
+ }
+
+ packet_reader_init(&reader, fd[0], NULL, 0,
+ PACKET_READ_CHOMP_NEWLINE |
+ PACKET_READ_GENTLE_ON_EOF |
+ PACKET_READ_DIE_ON_ERR_PACKET);
+
+ version = discover_version(&reader);
+ switch (version) {
+ case protocol_v2:
+ get_remote_refs(fd[1], &reader, &ref, 0, NULL, NULL,
+ args.stateless_rpc);
+ break;
+ case protocol_v1:
+ case protocol_v0:
+ get_remote_heads(&reader, &ref, 0, NULL, &shallow);
+ break;
+ case protocol_unknown_version:
+ BUG("unknown protocol version");
+ }
+
+ ref = fetch_pack(&args, fd, ref, sought, nr_sought,
+ &shallow, pack_lockfiles_ptr, version);
+ if (pack_lockfiles.nr) {
+ int i;
+
+ printf("lock %s\n", pack_lockfiles.items[0].string);
+ fflush(stdout);
+ for (i = 1; i < pack_lockfiles.nr; i++)
+ warning(_("Lockfile created but not reported: %s"),
+ pack_lockfiles.items[i].string);
+ }
+ if (args.check_self_contained_and_connected &&
+ args.self_contained_and_connected) {
+ printf("connectivity-ok\n");
+ fflush(stdout);
+ }
+ close(fd[0]);
+ close(fd[1]);
+ if (finish_connect(conn))
+ return 1;
+
+ ret = !ref;
+
+ /*
+ * If the heads to pull were given, we should have consumed
+ * all of them by matching the remote. Otherwise, 'git fetch
+ * remote no-such-ref' would silently succeed without issuing
+ * an error.
+ */
+ ret |= report_unmatched_refs(sought, nr_sought);
+
+ while (ref) {
+ printf("%s %s\n",
+ oid_to_hex(&ref->old_oid), ref->name);
+ ref = ref->next;
+ }
+
+ return ret;
+}