+++ /dev/null
-#include "builtin.h"
-#include "cache.h"
-#include "refs.h"
-#include "commit.h"
-#include "sigchain.h"
-
-static char *get_stdin(void)
-{
- struct strbuf buf = STRBUF_INIT;
- if (strbuf_read(&buf, 0, 1024) < 0) {
- die_errno("error reading standard input");
- }
- return strbuf_detach(&buf, NULL);
-}
-
-static void show_new(enum object_type type, unsigned char *sha1_new)
-{
- fprintf(stderr, " %s: %s\n", type_name(type),
- find_unique_abbrev(sha1_new, DEFAULT_ABBREV));
-}
-
-static int update_ref_env(const char *action,
- const char *refname,
- unsigned char *sha1,
- unsigned char *oldval)
-{
- char msg[1024];
- const char *rla = getenv("GIT_REFLOG_ACTION");
-
- if (!rla)
- rla = "(reflog update)";
- if (snprintf(msg, sizeof(msg), "%s: %s", rla, action) >= sizeof(msg))
- warning("reflog message too long: %.*s...", 50, msg);
- return update_ref(msg, refname, sha1, oldval, 0,
- UPDATE_REFS_QUIET_ON_ERR);
-}
-
-static int update_local_ref(const char *name,
- const char *new_head,
- const char *note,
- int verbose, int force)
-{
- unsigned char sha1_old[20], sha1_new[20];
- char oldh[41], newh[41];
- struct commit *current, *updated;
- enum object_type type;
-
- if (get_sha1_hex(new_head, sha1_new))
- die("malformed object name %s", new_head);
-
- type = sha1_object_info(sha1_new, NULL);
- if (type < 0)
- die("object %s not found", new_head);
-
- if (!*name) {
- /* Not storing */
- if (verbose) {
- fprintf(stderr, "* fetched %s\n", note);
- show_new(type, sha1_new);
- }
- return 0;
- }
-
- if (get_sha1(name, sha1_old)) {
- const char *msg;
- just_store:
- /* new ref */
- if (!strncmp(name, "refs/tags/", 10))
- msg = "storing tag";
- else
- msg = "storing head";
- fprintf(stderr, "* %s: storing %s\n",
- name, note);
- show_new(type, sha1_new);
- return update_ref_env(msg, name, sha1_new, NULL);
- }
-
- if (!hashcmp(sha1_old, sha1_new)) {
- if (verbose) {
- fprintf(stderr, "* %s: same as %s\n", name, note);
- show_new(type, sha1_new);
- }
- return 0;
- }
-
- if (!strncmp(name, "refs/tags/", 10)) {
- fprintf(stderr, "* %s: updating with %s\n", name, note);
- show_new(type, sha1_new);
- return update_ref_env("updating tag", name, sha1_new, NULL);
- }
-
- current = lookup_commit_reference(sha1_old);
- updated = lookup_commit_reference(sha1_new);
- if (!current || !updated)
- goto just_store;
-
- strcpy(oldh, find_unique_abbrev(current->object.sha1, DEFAULT_ABBREV));
- strcpy(newh, find_unique_abbrev(sha1_new, DEFAULT_ABBREV));
-
- if (in_merge_bases(current, updated)) {
- fprintf(stderr, "* %s: fast-forward to %s\n",
- name, note);
- fprintf(stderr, " old..new: %s..%s\n", oldh, newh);
- return update_ref_env("fast-forward", name, sha1_new, sha1_old);
- }
- if (!force) {
- fprintf(stderr,
- "* %s: not updating to non-fast-forward %s\n",
- name, note);
- fprintf(stderr,
- " old...new: %s...%s\n", oldh, newh);
- return 1;
- }
- fprintf(stderr,
- "* %s: forcing update to non-fast-forward %s\n",
- name, note);
- fprintf(stderr, " old...new: %s...%s\n", oldh, newh);
- return update_ref_env("forced-update", name, sha1_new, sha1_old);
-}
-
-static int append_fetch_head(FILE *fp,
- const char *head, const char *remote,
- const char *remote_name, const char *remote_nick,
- const char *local_name, int not_for_merge,
- int verbose, int force)
-{
- struct commit *commit;
- int remote_len, i, note_len;
- unsigned char sha1[20];
- char note[1024];
- const char *what, *kind;
-
- if (get_sha1(head, sha1))
- return error("Not a valid object name: %s", head);
- commit = lookup_commit_reference_gently(sha1, 1);
- if (!commit)
- not_for_merge = 1;
-
- if (!strcmp(remote_name, "HEAD")) {
- kind = "";
- what = "";
- }
- else if (!strncmp(remote_name, "refs/heads/", 11)) {
- kind = "branch";
- what = remote_name + 11;
- }
- else if (!strncmp(remote_name, "refs/tags/", 10)) {
- kind = "tag";
- what = remote_name + 10;
- }
- else if (!strncmp(remote_name, "refs/remotes/", 13)) {
- kind = "remote-tracking branch";
- what = remote_name + 13;
- }
- else {
- kind = "";
- what = remote_name;
- }
-
- remote_len = strlen(remote);
- for (i = remote_len - 1; remote[i] == '/' && 0 <= i; i--)
- ;
- remote_len = i + 1;
- if (4 < i && !strncmp(".git", remote + i - 3, 4))
- remote_len = i - 3;
-
- note_len = 0;
- if (*what) {
- if (*kind)
- note_len += sprintf(note + note_len, "%s ", kind);
- note_len += sprintf(note + note_len, "'%s' of ", what);
- }
- note_len += sprintf(note + note_len, "%.*s", remote_len, remote);
- fprintf(fp, "%s\t%s\t%s\n",
- sha1_to_hex(commit ? commit->object.sha1 : sha1),
- not_for_merge ? "not-for-merge" : "",
- note);
- return update_local_ref(local_name, head, note, verbose, force);
-}
-
-static char *keep;
-static void remove_keep(void)
-{
- if (keep && *keep)
- unlink(keep);
-}
-
-static void remove_keep_on_signal(int signo)
-{
- remove_keep();
- sigchain_pop(signo);
- raise(signo);
-}
-
-static char *find_local_name(const char *remote_name, const char *refs,
- int *force_p, int *not_for_merge_p)
-{
- const char *ref = refs;
- int len = strlen(remote_name);
-
- while (ref) {
- const char *next;
- int single_force, not_for_merge;
-
- while (*ref == '\n')
- ref++;
- if (!*ref)
- break;
- next = strchr(ref, '\n');
-
- single_force = not_for_merge = 0;
- if (*ref == '+') {
- single_force = 1;
- ref++;
- }
- if (*ref == '.') {
- not_for_merge = 1;
- ref++;
- if (*ref == '+') {
- single_force = 1;
- ref++;
- }
- }
- if (!strncmp(remote_name, ref, len) && ref[len] == ':') {
- const char *local_part = ref + len + 1;
- int retlen;
-
- if (!next)
- retlen = strlen(local_part);
- else
- retlen = next - local_part;
- *force_p = single_force;
- *not_for_merge_p = not_for_merge;
- return xmemdupz(local_part, retlen);
- }
- ref = next;
- }
- return NULL;
-}
-
-static int fetch_native_store(FILE *fp,
- const char *remote,
- const char *remote_nick,
- const char *refs,
- int verbose, int force)
-{
- char buffer[1024];
- int err = 0;
-
- sigchain_push_common(remove_keep_on_signal);
- atexit(remove_keep);
-
- while (fgets(buffer, sizeof(buffer), stdin)) {
- int len;
- char *cp;
- char *local_name;
- int single_force, not_for_merge;
-
- for (cp = buffer; *cp && !isspace(*cp); cp++)
- ;
- if (*cp)
- *cp++ = 0;
- len = strlen(cp);
- if (len && cp[len-1] == '\n')
- cp[--len] = 0;
- if (!strcmp(buffer, "failed"))
- die("Fetch failure: %s", remote);
- if (!strcmp(buffer, "pack"))
- continue;
- if (!strcmp(buffer, "keep")) {
- char *od = get_object_directory();
- int len = strlen(od) + strlen(cp) + 50;
- keep = xmalloc(len);
- sprintf(keep, "%s/pack/pack-%s.keep", od, cp);
- continue;
- }
-
- local_name = find_local_name(cp, refs,
- &single_force, ¬_for_merge);
- if (!local_name)
- continue;
- err |= append_fetch_head(fp,
- buffer, remote, cp, remote_nick,
- local_name, not_for_merge,
- verbose, force || single_force);
- }
- return err;
-}
-
-static int parse_reflist(const char *reflist)
-{
- const char *ref;
-
- printf("refs='");
- for (ref = reflist; ref; ) {
- const char *next;
- while (*ref && isspace(*ref))
- ref++;
- if (!*ref)
- break;
- for (next = ref; *next && !isspace(*next); next++)
- ;
- printf("\n%.*s", (int)(next - ref), ref);
- ref = next;
- }
- printf("'\n");
-
- printf("rref='");
- for (ref = reflist; ref; ) {
- const char *next, *colon;
- while (*ref && isspace(*ref))
- ref++;
- if (!*ref)
- break;
- for (next = ref; *next && !isspace(*next); next++)
- ;
- if (*ref == '.')
- ref++;
- if (*ref == '+')
- ref++;
- colon = strchr(ref, ':');
- putchar('\n');
- printf("%.*s", (int)((colon ? colon : next) - ref), ref);
- ref = next;
- }
- printf("'\n");
- return 0;
-}
-
-static int expand_refs_wildcard(const char *ls_remote_result, int numrefs,
- const char **refs)
-{
- int i, matchlen, replacelen;
- int found_one = 0;
- const char *remote = *refs++;
- numrefs--;
-
- if (numrefs == 0) {
- fprintf(stderr, "Nothing specified for fetching with remote.%s.fetch\n",
- remote);
- printf("empty\n");
- }
-
- for (i = 0; i < numrefs; i++) {
- const char *ref = refs[i];
- const char *lref = ref;
- const char *colon;
- const char *tail;
- const char *ls;
- const char *next;
-
- if (*lref == '+')
- lref++;
- colon = strchr(lref, ':');
- tail = lref + strlen(lref);
- if (!(colon &&
- 2 < colon - lref &&
- colon[-1] == '*' &&
- colon[-2] == '/' &&
- 2 < tail - (colon + 1) &&
- tail[-1] == '*' &&
- tail[-2] == '/')) {
- /* not a glob */
- if (!found_one++)
- printf("explicit\n");
- printf("%s\n", ref);
- continue;
- }
-
- /* glob */
- if (!found_one++)
- printf("glob\n");
-
- /* lref to colon-2 is remote hierarchy name;
- * colon+1 to tail-2 is local.
- */
- matchlen = (colon-1) - lref;
- replacelen = (tail-1) - (colon+1);
- for (ls = ls_remote_result; ls; ls = next) {
- const char *eol;
- unsigned char sha1[20];
- int namelen;
-
- while (*ls && isspace(*ls))
- ls++;
- next = strchr(ls, '\n');
- eol = !next ? (ls + strlen(ls)) : next;
- if (!memcmp("^{}", eol-3, 3))
- continue;
- if (eol - ls < 40)
- continue;
- if (get_sha1_hex(ls, sha1))
- continue;
- ls += 40;
- while (ls < eol && isspace(*ls))
- ls++;
- /* ls to next (or eol) is the name.
- * is it identical to lref to colon-2?
- */
- if ((eol - ls) <= matchlen ||
- strncmp(ls, lref, matchlen))
- continue;
-
- /* Yes, it is a match */
- namelen = eol - ls;
- if (lref != ref)
- putchar('+');
- printf("%.*s:%.*s%.*s\n",
- namelen, ls,
- replacelen, colon + 1,
- namelen - matchlen, ls + matchlen);
- }
- }
- return 0;
-}
-
-static int pick_rref(int sha1_only, const char *rref, const char *ls_remote_result)
-{
- int err = 0;
- int lrr_count = lrr_count, i, pass;
- const char *cp;
- struct lrr {
- const char *line;
- const char *name;
- int namelen;
- int shown;
- } *lrr_list = lrr_list;
-
- for (pass = 0; pass < 2; pass++) {
- /* pass 0 counts and allocates, pass 1 fills... */
- cp = ls_remote_result;
- i = 0;
- while (1) {
- const char *np;
- while (*cp && isspace(*cp))
- cp++;
- if (!*cp)
- break;
- np = strchrnul(cp, '\n');
- if (pass) {
- lrr_list[i].line = cp;
- lrr_list[i].name = cp + 41;
- lrr_list[i].namelen = np - (cp + 41);
- }
- i++;
- cp = np;
- }
- if (!pass) {
- lrr_count = i;
- lrr_list = xcalloc(lrr_count, sizeof(*lrr_list));
- }
- }
-
- while (1) {
- const char *next;
- int rreflen;
- int i;
-
- while (*rref && isspace(*rref))
- rref++;
- if (!*rref)
- break;
- next = strchrnul(rref, '\n');
- rreflen = next - rref;
-
- for (i = 0; i < lrr_count; i++) {
- struct lrr *lrr = &(lrr_list[i]);
-
- if (rreflen == lrr->namelen &&
- !memcmp(lrr->name, rref, rreflen)) {
- if (!lrr->shown)
- printf("%.*s\n",
- sha1_only ? 40 : lrr->namelen + 41,
- lrr->line);
- lrr->shown = 1;
- break;
- }
- }
- if (lrr_count <= i) {
- error("pick-rref: %.*s not found", rreflen, rref);
- err = 1;
- }
- rref = next;
- }
- free(lrr_list);
- return err;
-}
-
-int cmd_fetch__tool(int argc, const char **argv, const char *prefix)
-{
- int verbose = 0;
- int force = 0;
- int sopt = 0;
-
- while (1 < argc) {
- const char *arg = argv[1];
- if (!strcmp("-v", arg))
- verbose = 1;
- else if (!strcmp("-f", arg))
- force = 1;
- else if (!strcmp("-s", arg))
- sopt = 1;
- else
- break;
- argc--;
- argv++;
- }
-
- if (argc <= 1)
- return error("Missing subcommand");
-
- if (!strcmp("append-fetch-head", argv[1])) {
- int result;
- FILE *fp;
- char *filename;
-
- if (argc != 8)
- return error("append-fetch-head takes 6 args");
- filename = git_path_fetch_head();
- fp = fopen(filename, "a");
- if (!fp)
- return error("cannot open %s: %s", filename, strerror(errno));
- result = append_fetch_head(fp, argv[2], argv[3],
- argv[4], argv[5],
- argv[6], !!argv[7][0],
- verbose, force);
- fclose(fp);
- return result;
- }
- if (!strcmp("native-store", argv[1])) {
- int result;
- FILE *fp;
- char *filename;
-
- if (argc != 5)
- return error("fetch-native-store takes 3 args");
- filename = git_path_fetch_head();
- fp = fopen(filename, "a");
- if (!fp)
- return error("cannot open %s: %s", filename, strerror(errno));
- result = fetch_native_store(fp, argv[2], argv[3], argv[4],
- verbose, force);
- fclose(fp);
- return result;
- }
- if (!strcmp("parse-reflist", argv[1])) {
- const char *reflist;
- if (argc != 3)
- return error("parse-reflist takes 1 arg");
- reflist = argv[2];
- if (!strcmp(reflist, "-"))
- reflist = get_stdin();
- return parse_reflist(reflist);
- }
- if (!strcmp("pick-rref", argv[1])) {
- const char *ls_remote_result;
- if (argc != 4)
- return error("pick-rref takes 2 args");
- ls_remote_result = argv[3];
- if (!strcmp(ls_remote_result, "-"))
- ls_remote_result = get_stdin();
- return pick_rref(sopt, argv[2], ls_remote_result);
- }
- if (!strcmp("expand-refs-wildcard", argv[1])) {
- const char *reflist;
- if (argc < 4)
- return error("expand-refs-wildcard takes at least 2 args");
- reflist = argv[2];
- if (!strcmp(reflist, "-"))
- reflist = get_stdin();
- return expand_refs_wildcard(reflist, argc - 3, argv + 3);
- }
-
- return error("Unknown subcommand: %s", argv[1]);
-}
projects / thirdparty / git.git / blobdiff