diff options
Diffstat (limited to 'builtin-fetch.c')
| -rw-r--r-- | builtin-fetch.c | 99 |
1 files changed, 63 insertions, 36 deletions
diff --git a/builtin-fetch.c b/builtin-fetch.c index 3c998ea740..817dd6bff0 100644 --- a/builtin-fetch.c +++ b/builtin-fetch.c @@ -167,6 +167,9 @@ static struct ref *get_ref_map(struct transport *transport, return ref_map; } +#define STORE_REF_ERROR_OTHER 1 +#define STORE_REF_ERROR_DF_CONFLICT 2 + static int s_update_ref(const char *action, struct ref *ref, int check_old) @@ -181,9 +184,11 @@ static int s_update_ref(const char *action, lock = lock_any_ref_for_update(ref->name, check_old ? ref->old_sha1 : NULL, 0); if (!lock) - return 2; + return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT : + STORE_REF_ERROR_OTHER; if (write_ref_sha1(lock, ref->new_sha1, msg) < 0) - return 2; + return errno == ENOTDIR ? STORE_REF_ERROR_DF_CONFLICT : + STORE_REF_ERROR_OTHER; return 0; } @@ -197,7 +202,7 @@ static int update_local_ref(struct ref *ref, struct commit *current = NULL, *updated; enum object_type type; struct branch *current_branch = branch_get(NULL); - const char *pretty_ref = prettify_ref(ref); + const char *pretty_ref = prettify_refname(ref->name); *display = 0; type = sha1_object_info(ref->new_sha1, NULL); @@ -289,7 +294,7 @@ static int update_local_ref(struct ref *ref, } } -static int store_updated_refs(const char *url, const char *remote_name, +static int store_updated_refs(const char *raw_url, const char *remote_name, struct ref *ref_map) { FILE *fp; @@ -298,11 +303,13 @@ static int store_updated_refs(const char *url, const char *remote_name, char note[1024]; const char *what, *kind; struct ref *rm; - char *filename = git_path("FETCH_HEAD"); + char *url, *filename = git_path("FETCH_HEAD"); fp = fopen(filename, "a"); if (!fp) return error("cannot open %s: %s\n", filename, strerror(errno)); + + url = transport_anonymize_url(raw_url); for (rm = ref_map; rm; rm = rm->next) { struct ref *ref = NULL; @@ -353,12 +360,18 @@ static int store_updated_refs(const char *url, const char *remote_name, kind); note_len += sprintf(note + note_len, "'%s' of ", what); } - note_len += sprintf(note + note_len, "%.*s", url_len, url); - fprintf(fp, "%s\t%s\t%s\n", + note[note_len] = '\0'; + fprintf(fp, "%s\t%s\t%s", sha1_to_hex(commit ? commit->object.sha1 : rm->old_sha1), rm->merge ? "" : "not-for-merge", note); + for (i = 0; i < url_len; ++i) + if ('\n' == url[i]) + fputs("\\n", fp); + else + fputc(url[i], fp); + fputc('\n', fp); if (ref) rc |= update_local_ref(ref, what, note); @@ -376,8 +389,9 @@ static int store_updated_refs(const char *url, const char *remote_name, fprintf(stderr, " %s\n", note); } } + free(url); fclose(fp); - if (rc & 2) + if (rc & STORE_REF_ERROR_DF_CONFLICT) error("some local refs could not be updated; try running\n" " 'git remote prune %s' to remove any old, conflicting " "branches", remote_name); @@ -386,14 +400,14 @@ static int store_updated_refs(const char *url, const char *remote_name, /* * We would want to bypass the object transfer altogether if - * everything we are going to fetch already exists and connected + * everything we are going to fetch already exists and is connected * locally. * - * The refs we are going to fetch are in to_fetch (nr_heads in - * total). If running + * The refs we are going to fetch are in ref_map. If running * - * $ git rev-list --objects to_fetch[0] to_fetch[1] ... --not --all + * $ git rev-list --objects --stdin --not --all * + * (feeding all the refs in ref_map on its standard input) * does not error out, that means everything reachable from the * refs we are going to fetch exists and is connected to some of * our existing refs. @@ -402,8 +416,9 @@ static int quickfetch(struct ref *ref_map) { struct child_process revlist; struct ref *ref; - char **argv; - int i, err; + int err; + const char *argv[] = {"rev-list", + "--quiet", "--objects", "--stdin", "--not", "--all", NULL}; /* * If we are deepening a shallow clone we already have these @@ -415,34 +430,46 @@ static int quickfetch(struct ref *ref_map) if (depth) return -1; - for (i = 0, ref = ref_map; ref; ref = ref->next) - i++; - if (!i) + if (!ref_map) return 0; - argv = xmalloc(sizeof(*argv) * (i + 6)); - i = 0; - argv[i++] = xstrdup("rev-list"); - argv[i++] = xstrdup("--quiet"); - argv[i++] = xstrdup("--objects"); - for (ref = ref_map; ref; ref = ref->next) - argv[i++] = xstrdup(sha1_to_hex(ref->old_sha1)); - argv[i++] = xstrdup("--not"); - argv[i++] = xstrdup("--all"); - argv[i++] = NULL; - memset(&revlist, 0, sizeof(revlist)); - revlist.argv = (const char**)argv; + revlist.argv = argv; revlist.git_cmd = 1; - revlist.no_stdin = 1; revlist.no_stdout = 1; revlist.no_stderr = 1; - err = run_command(&revlist); + revlist.in = -1; + + err = start_command(&revlist); + if (err) { + error("could not run rev-list"); + return err; + } + + /* + * If rev-list --stdin encounters an unknown commit, it terminates, + * which will cause SIGPIPE in the write loop below. + */ + sigchain_push(SIGPIPE, SIG_IGN); + + for (ref = ref_map; ref; ref = ref->next) { + if (write_in_full(revlist.in, sha1_to_hex(ref->old_sha1), 40) < 0 || + write_in_full(revlist.in, "\n", 1) < 0) { + if (errno != EPIPE && errno != EINVAL) + error("failed write to rev-list: %s", strerror(errno)); + err = -1; + break; + } + } + + if (close(revlist.in)) { + error("failed to close rev-list's stdin: %s", strerror(errno)); + err = -1; + } + + sigchain_pop(SIGPIPE); - for (i = 0; argv[i]; i++) - free(argv[i]); - free(argv); - return err; + return finish_command(&revlist) || err; } static int fetch_refs(struct transport *transport, struct ref *ref_map) @@ -625,7 +652,7 @@ int cmd_fetch(int argc, const char **argv, const char *prefix) for (i = 1; i < argc; i++) strbuf_addf(&default_rla, " %s", argv[i]); - argc = parse_options(argc, argv, + argc = parse_options(argc, argv, prefix, builtin_fetch_options, builtin_fetch_usage, 0); if (argc == 0) |