summaryrefslogtreecommitdiff
path: root/builtin-send-pack.c
diff options
context:
space:
mode:
Diffstat (limited to 'builtin-send-pack.c')
-rw-r--r--builtin-send-pack.c662
1 files changed, 0 insertions, 662 deletions
diff --git a/builtin-send-pack.c b/builtin-send-pack.c
deleted file mode 100644
index e428eace2b..0000000000
--- a/builtin-send-pack.c
+++ /dev/null
@@ -1,662 +0,0 @@
-#include "cache.h"
-#include "commit.h"
-#include "tag.h"
-#include "refs.h"
-#include "pkt-line.h"
-#include "run-command.h"
-#include "remote.h"
-#include "send-pack.h"
-
-static const char send_pack_usage[] =
-"git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
-" --all and explicit <ref> specification are mutually exclusive.";
-
-static struct send_pack_args args = {
- /* .receivepack = */ "git-receive-pack",
-};
-
-/*
- * Make a pack stream and spit it out into file descriptor fd
- */
-static int pack_objects(int fd, struct ref *refs)
-{
- /*
- * The child becomes pack-objects --revs; we feed
- * the revision parameters to it via its stdin and
- * let its stdout go back to the other end.
- */
- const char *argv[] = {
- "pack-objects",
- "--all-progress",
- "--revs",
- "--stdout",
- NULL,
- NULL,
- };
- struct child_process po;
-
- if (args.use_thin_pack)
- argv[4] = "--thin";
- memset(&po, 0, sizeof(po));
- po.argv = argv;
- po.in = -1;
- po.out = fd;
- po.git_cmd = 1;
- if (start_command(&po))
- die("git pack-objects failed (%s)", strerror(errno));
-
- /*
- * We feed the pack-objects we just spawned with revision
- * parameters by writing to the pipe.
- */
- while (refs) {
- char buf[42];
-
- if (!is_null_sha1(refs->old_sha1) &&
- has_sha1_file(refs->old_sha1)) {
- memcpy(buf + 1, sha1_to_hex(refs->old_sha1), 40);
- buf[0] = '^';
- buf[41] = '\n';
- if (!write_or_whine(po.in, buf, 42,
- "send-pack: send refs"))
- break;
- }
- if (!is_null_sha1(refs->new_sha1)) {
- memcpy(buf, sha1_to_hex(refs->new_sha1), 40);
- buf[40] = '\n';
- if (!write_or_whine(po.in, buf, 41,
- "send-pack: send refs"))
- break;
- }
- refs = refs->next;
- }
-
- close(po.in);
- if (finish_command(&po))
- return error("pack-objects died with strange error");
- return 0;
-}
-
-static void unmark_and_free(struct commit_list *list, unsigned int mark)
-{
- while (list) {
- struct commit_list *temp = list;
- temp->item->object.flags &= ~mark;
- list = temp->next;
- free(temp);
- }
-}
-
-static int ref_newer(const unsigned char *new_sha1,
- const unsigned char *old_sha1)
-{
- struct object *o;
- struct commit *old, *new;
- struct commit_list *list, *used;
- int found = 0;
-
- /* Both new and old must be commit-ish and new is descendant of
- * old. Otherwise we require --force.
- */
- o = deref_tag(parse_object(old_sha1), NULL, 0);
- if (!o || o->type != OBJ_COMMIT)
- return 0;
- old = (struct commit *) o;
-
- o = deref_tag(parse_object(new_sha1), NULL, 0);
- if (!o || o->type != OBJ_COMMIT)
- return 0;
- new = (struct commit *) o;
-
- if (parse_commit(new) < 0)
- return 0;
-
- used = list = NULL;
- commit_list_insert(new, &list);
- while (list) {
- new = pop_most_recent_commit(&list, 1);
- commit_list_insert(new, &used);
- if (new == old) {
- found = 1;
- break;
- }
- }
- unmark_and_free(list, 1);
- unmark_and_free(used, 1);
- return found;
-}
-
-static struct ref *local_refs, **local_tail;
-static struct ref *remote_refs, **remote_tail;
-
-static int one_local_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
-{
- struct ref *ref;
- int len;
-
- /* we already know it starts with refs/ to get here */
- if (check_ref_format(refname + 5))
- return 0;
-
- len = strlen(refname) + 1;
- ref = xcalloc(1, sizeof(*ref) + len);
- hashcpy(ref->new_sha1, sha1);
- memcpy(ref->name, refname, len);
- *local_tail = ref;
- local_tail = &ref->next;
- return 0;
-}
-
-static void get_local_heads(void)
-{
- local_tail = &local_refs;
- for_each_ref(one_local_ref, NULL);
-}
-
-static int receive_status(int in, struct ref *refs)
-{
- struct ref *hint;
- char line[1000];
- int ret = 0;
- int len = packet_read_line(in, line, sizeof(line));
- if (len < 10 || memcmp(line, "unpack ", 7))
- return error("did not receive remote status");
- if (memcmp(line, "unpack ok\n", 10)) {
- char *p = line + strlen(line) - 1;
- if (*p == '\n')
- *p = '\0';
- error("unpack failed: %s", line + 7);
- ret = -1;
- }
- hint = NULL;
- while (1) {
- char *refname;
- char *msg;
- len = packet_read_line(in, line, sizeof(line));
- if (!len)
- break;
- if (len < 3 ||
- (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3))) {
- fprintf(stderr, "protocol error: %s\n", line);
- ret = -1;
- break;
- }
-
- line[strlen(line)-1] = '\0';
- refname = line + 3;
- msg = strchr(refname, ' ');
- if (msg)
- *msg++ = '\0';
-
- /* first try searching at our hint, falling back to all refs */
- if (hint)
- hint = find_ref_by_name(hint, refname);
- if (!hint)
- hint = find_ref_by_name(refs, refname);
- if (!hint) {
- warning("remote reported status on unknown ref: %s",
- refname);
- continue;
- }
- if (hint->status != REF_STATUS_EXPECTING_REPORT) {
- warning("remote reported status on unexpected ref: %s",
- refname);
- continue;
- }
-
- if (line[0] == 'o' && line[1] == 'k')
- hint->status = REF_STATUS_OK;
- else {
- hint->status = REF_STATUS_REMOTE_REJECT;
- ret = -1;
- }
- if (msg)
- hint->remote_status = xstrdup(msg);
- /* start our next search from the next ref */
- hint = hint->next;
- }
- return ret;
-}
-
-static void update_tracking_ref(struct remote *remote, struct ref *ref)
-{
- struct refspec rs;
-
- if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
- return;
-
- rs.src = ref->name;
- rs.dst = NULL;
-
- if (!remote_find_tracking(remote, &rs)) {
- if (args.verbose)
- fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
- if (ref->deletion) {
- delete_ref(rs.dst, NULL, 0);
- } else
- update_ref("update by push", rs.dst,
- ref->new_sha1, NULL, 0, 0);
- free(rs.dst);
- }
-}
-
-static const char *prettify_ref(const struct ref *ref)
-{
- const char *name = ref->name;
- return name + (
- !prefixcmp(name, "refs/heads/") ? 11 :
- !prefixcmp(name, "refs/tags/") ? 10 :
- !prefixcmp(name, "refs/remotes/") ? 13 :
- 0);
-}
-
-#define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3)
-
-static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg)
-{
- fprintf(stderr, " %c %-*s ", flag, SUMMARY_WIDTH, summary);
- if (from)
- fprintf(stderr, "%s -> %s", prettify_ref(from), prettify_ref(to));
- else
- fputs(prettify_ref(to), stderr);
- if (msg) {
- fputs(" (", stderr);
- fputs(msg, stderr);
- fputc(')', stderr);
- }
- fputc('\n', stderr);
-}
-
-static const char *status_abbrev(unsigned char sha1[20])
-{
- return find_unique_abbrev(sha1, DEFAULT_ABBREV);
-}
-
-static void print_ok_ref_status(struct ref *ref)
-{
- if (ref->deletion)
- print_ref_status('-', "[deleted]", ref, NULL, NULL);
- else if (is_null_sha1(ref->old_sha1))
- print_ref_status('*',
- (!prefixcmp(ref->name, "refs/tags/") ? "[new tag]" :
- "[new branch]"),
- ref, ref->peer_ref, NULL);
- else {
- char quickref[84];
- char type;
- const char *msg;
-
- strcpy(quickref, status_abbrev(ref->old_sha1));
- if (ref->nonfastforward) {
- strcat(quickref, "...");
- type = '+';
- msg = "forced update";
- } else {
- strcat(quickref, "..");
- type = ' ';
- msg = NULL;
- }
- strcat(quickref, status_abbrev(ref->new_sha1));
-
- print_ref_status(type, quickref, ref, ref->peer_ref, msg);
- }
-}
-
-static int print_one_push_status(struct ref *ref, const char *dest, int count)
-{
- if (!count)
- fprintf(stderr, "To %s\n", dest);
-
- switch(ref->status) {
- case REF_STATUS_NONE:
- print_ref_status('X', "[no match]", ref, NULL, NULL);
- break;
- case REF_STATUS_REJECT_NODELETE:
- print_ref_status('!', "[rejected]", ref, NULL,
- "remote does not support deleting refs");
- break;
- case REF_STATUS_UPTODATE:
- print_ref_status('=', "[up to date]", ref,
- ref->peer_ref, NULL);
- break;
- case REF_STATUS_REJECT_NONFASTFORWARD:
- print_ref_status('!', "[rejected]", ref, ref->peer_ref,
- "non-fast forward");
- break;
- case REF_STATUS_REMOTE_REJECT:
- print_ref_status('!', "[remote rejected]", ref,
- ref->deletion ? NULL : ref->peer_ref,
- ref->remote_status);
- break;
- case REF_STATUS_EXPECTING_REPORT:
- print_ref_status('!', "[remote failure]", ref,
- ref->deletion ? NULL : ref->peer_ref,
- "remote failed to report status");
- break;
- case REF_STATUS_OK:
- print_ok_ref_status(ref);
- break;
- }
-
- return 1;
-}
-
-static void print_push_status(const char *dest, struct ref *refs)
-{
- struct ref *ref;
- int n = 0;
-
- if (args.verbose) {
- for (ref = refs; ref; ref = ref->next)
- if (ref->status == REF_STATUS_UPTODATE)
- n += print_one_push_status(ref, dest, n);
- }
-
- for (ref = refs; ref; ref = ref->next)
- if (ref->status == REF_STATUS_OK)
- n += print_one_push_status(ref, dest, n);
-
- for (ref = refs; ref; ref = ref->next) {
- if (ref->status != REF_STATUS_NONE &&
- ref->status != REF_STATUS_UPTODATE &&
- ref->status != REF_STATUS_OK)
- n += print_one_push_status(ref, dest, n);
- }
-}
-
-static int refs_pushed(struct ref *ref)
-{
- for (; ref; ref = ref->next) {
- switch(ref->status) {
- case REF_STATUS_NONE:
- case REF_STATUS_UPTODATE:
- break;
- default:
- return 1;
- }
- }
- return 0;
-}
-
-static int do_send_pack(int in, int out, struct remote *remote, const char *dest, int nr_refspec, const char **refspec)
-{
- struct ref *ref;
- int new_refs;
- int ask_for_status_report = 0;
- int allow_deleting_refs = 0;
- int expect_status_report = 0;
- int flags = MATCH_REFS_NONE;
- int ret;
-
- if (args.send_all)
- flags |= MATCH_REFS_ALL;
- if (args.send_mirror)
- flags |= MATCH_REFS_MIRROR;
-
- /* No funny business with the matcher */
- remote_tail = get_remote_heads(in, &remote_refs, 0, NULL, REF_NORMAL);
- get_local_heads();
-
- /* Does the other end support the reporting? */
- if (server_supports("report-status"))
- ask_for_status_report = 1;
- if (server_supports("delete-refs"))
- allow_deleting_refs = 1;
-
- /* match them up */
- if (!remote_tail)
- remote_tail = &remote_refs;
- if (match_refs(local_refs, remote_refs, &remote_tail,
- nr_refspec, refspec, flags)) {
- close(out);
- return -1;
- }
-
- if (!remote_refs) {
- fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
- "Perhaps you should specify a branch such as 'master'.\n");
- close(out);
- return 0;
- }
-
- /*
- * Finally, tell the other end!
- */
- new_refs = 0;
- for (ref = remote_refs; ref; ref = ref->next) {
-
- if (ref->peer_ref)
- hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
- else if (!args.send_mirror)
- continue;
-
- ref->deletion = is_null_sha1(ref->new_sha1);
- if (ref->deletion && !allow_deleting_refs) {
- ref->status = REF_STATUS_REJECT_NODELETE;
- continue;
- }
- if (!ref->deletion &&
- !hashcmp(ref->old_sha1, ref->new_sha1)) {
- ref->status = REF_STATUS_UPTODATE;
- continue;
- }
-
- /* This part determines what can overwrite what.
- * The rules are:
- *
- * (0) you can always use --force or +A:B notation to
- * selectively force individual ref pairs.
- *
- * (1) if the old thing does not exist, it is OK.
- *
- * (2) if you do not have the old thing, you are not allowed
- * to overwrite it; you would not know what you are losing
- * otherwise.
- *
- * (3) if both new and old are commit-ish, and new is a
- * descendant of old, it is OK.
- *
- * (4) regardless of all of the above, removing :B is
- * always allowed.
- */
-
- ref->nonfastforward =
- !ref->deletion &&
- !is_null_sha1(ref->old_sha1) &&
- (!has_sha1_file(ref->old_sha1)
- || !ref_newer(ref->new_sha1, ref->old_sha1));
-
- if (ref->nonfastforward && !ref->force && !args.force_update) {
- ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
- continue;
- }
-
- if (!ref->deletion)
- new_refs++;
-
- if (!args.dry_run) {
- char *old_hex = sha1_to_hex(ref->old_sha1);
- char *new_hex = sha1_to_hex(ref->new_sha1);
-
- if (ask_for_status_report) {
- packet_write(out, "%s %s %s%c%s",
- old_hex, new_hex, ref->name, 0,
- "report-status");
- ask_for_status_report = 0;
- expect_status_report = 1;
- }
- else
- packet_write(out, "%s %s %s",
- old_hex, new_hex, ref->name);
- }
- ref->status = expect_status_report ?
- REF_STATUS_EXPECTING_REPORT :
- REF_STATUS_OK;
- }
-
- packet_flush(out);
- if (new_refs && !args.dry_run) {
- if (pack_objects(out, remote_refs) < 0)
- return -1;
- }
- else
- close(out);
-
- if (expect_status_report)
- ret = receive_status(in, remote_refs);
- else
- ret = 0;
-
- print_push_status(dest, remote_refs);
-
- if (!args.dry_run && remote) {
- for (ref = remote_refs; ref; ref = ref->next)
- update_tracking_ref(remote, ref);
- }
-
- if (!refs_pushed(remote_refs))
- fprintf(stderr, "Everything up-to-date\n");
- if (ret < 0)
- return ret;
- for (ref = remote_refs; ref; ref = ref->next) {
- switch (ref->status) {
- case REF_STATUS_NONE:
- case REF_STATUS_UPTODATE:
- case REF_STATUS_OK:
- break;
- default:
- return -1;
- }
- }
- return 0;
-}
-
-static void verify_remote_names(int nr_heads, const char **heads)
-{
- int i;
-
- for (i = 0; i < nr_heads; i++) {
- const char *local = heads[i];
- const char *remote = strrchr(heads[i], ':');
-
- if (*local == '+')
- local++;
-
- /* A matching refspec is okay. */
- if (remote == local && remote[1] == '\0')
- continue;
-
- remote = remote ? (remote + 1) : local;
- switch (check_ref_format(remote)) {
- case 0: /* ok */
- case CHECK_REF_FORMAT_ONELEVEL:
- /* ok but a single level -- that is fine for
- * a match pattern.
- */
- case CHECK_REF_FORMAT_WILDCARD:
- /* ok but ends with a pattern-match character */
- continue;
- }
- die("remote part of refspec is not a valid name in %s",
- heads[i]);
- }
-}
-
-int cmd_send_pack(int argc, const char **argv, const char *prefix)
-{
- int i, nr_heads = 0;
- const char **heads = NULL;
- const char *remote_name = NULL;
- struct remote *remote = NULL;
- const char *dest = NULL;
-
- argv++;
- for (i = 1; i < argc; i++, argv++) {
- const char *arg = *argv;
-
- if (*arg == '-') {
- if (!prefixcmp(arg, "--receive-pack=")) {
- args.receivepack = arg + 15;
- continue;
- }
- if (!prefixcmp(arg, "--exec=")) {
- args.receivepack = arg + 7;
- continue;
- }
- if (!prefixcmp(arg, "--remote=")) {
- remote_name = arg + 9;
- continue;
- }
- if (!strcmp(arg, "--all")) {
- args.send_all = 1;
- continue;
- }
- if (!strcmp(arg, "--dry-run")) {
- args.dry_run = 1;
- continue;
- }
- if (!strcmp(arg, "--mirror")) {
- args.send_mirror = 1;
- continue;
- }
- if (!strcmp(arg, "--force")) {
- args.force_update = 1;
- continue;
- }
- if (!strcmp(arg, "--verbose")) {
- args.verbose = 1;
- continue;
- }
- if (!strcmp(arg, "--thin")) {
- args.use_thin_pack = 1;
- continue;
- }
- usage(send_pack_usage);
- }
- if (!dest) {
- dest = arg;
- continue;
- }
- heads = (const char **) argv;
- nr_heads = argc - i;
- break;
- }
- if (!dest)
- usage(send_pack_usage);
- /*
- * --all and --mirror are incompatible; neither makes sense
- * with any refspecs.
- */
- if ((heads && (args.send_all || args.send_mirror)) ||
- (args.send_all && args.send_mirror))
- usage(send_pack_usage);
-
- if (remote_name) {
- remote = remote_get(remote_name);
- if (!remote_has_url(remote, dest)) {
- die("Destination %s is not a uri for %s",
- dest, remote_name);
- }
- }
-
- return send_pack(&args, dest, remote, nr_heads, heads);
-}
-
-int send_pack(struct send_pack_args *my_args,
- const char *dest, struct remote *remote,
- int nr_heads, const char **heads)
-{
- int fd[2], ret;
- struct child_process *conn;
-
- memcpy(&args, my_args, sizeof(args));
-
- verify_remote_names(nr_heads, heads);
-
- conn = git_connect(fd, dest, args.receivepack, args.verbose ? CONNECT_VERBOSE : 0);
- ret = do_send_pack(fd[0], fd[1], remote, dest, nr_heads, heads);
- close(fd[0]);
- /* do_send_pack always closes fd[1] */
- ret |= finish_connect(conn);
- return !!ret;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 00:13:10 +0000