diff options
| -rw-r--r-- | cache.h | 3 | ||||
| -rw-r--r-- | path.c | 38 | ||||
| -rw-r--r-- | refs.c | 118 |
3 files changed, 127 insertions, 32 deletions
@@ -641,6 +641,9 @@ extern char *git_pathdup(const char *fmt, ...) /* Return a statically allocated filename matching the sha1 signature */ extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2))); extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2))); +extern char *git_path_submodule(const char *path, const char *fmt, ...) + __attribute__((format (printf, 2, 3))); + extern char *sha1_file_name(const unsigned char *sha1); extern char *sha1_pack_name(const unsigned char *sha1); extern char *sha1_pack_index_name(const unsigned char *sha1); @@ -122,6 +122,44 @@ char *git_path(const char *fmt, ...) return cleanup_path(pathname); } +char *git_path_submodule(const char *path, const char *fmt, ...) +{ + char *pathname = get_pathname(); + struct strbuf buf = STRBUF_INIT; + const char *git_dir; + va_list args; + unsigned len; + + len = strlen(path); + if (len > PATH_MAX-100) + return bad_path; + + strbuf_addstr(&buf, path); + if (len && path[len-1] != '/') + strbuf_addch(&buf, '/'); + strbuf_addstr(&buf, ".git"); + + git_dir = read_gitfile_gently(buf.buf); + if (git_dir) { + strbuf_reset(&buf); + strbuf_addstr(&buf, git_dir); + } + strbuf_addch(&buf, '/'); + + if (buf.len >= PATH_MAX) + return bad_path; + memcpy(pathname, buf.buf, buf.len + 1); + + strbuf_release(&buf); + len = strlen(pathname); + + va_start(args, fmt); + len += vsnprintf(pathname + len, PATH_MAX - len, fmt, args); + va_end(args); + if (len >= PATH_MAX) + return bad_path; + return cleanup_path(pathname); +} /* git_mkstemp() - create tmp file honoring TMPDIR variable */ int git_mkstemp(char *path, size_t len, const char *template) @@ -157,7 +157,7 @@ static struct cached_refs { char did_packed; struct ref_list *loose; struct ref_list *packed; -} cached_refs; +} cached_refs, submodule_refs; static struct ref_list *current_ref; static struct ref_list *extra_refs; @@ -229,23 +229,45 @@ void clear_extra_refs(void) extra_refs = NULL; } -static struct ref_list *get_packed_refs(void) +static struct ref_list *get_packed_refs(const char *submodule) { - if (!cached_refs.did_packed) { - FILE *f = fopen(git_path("packed-refs"), "r"); - cached_refs.packed = NULL; + const char *packed_refs_file; + struct cached_refs *refs; + + if (submodule) { + packed_refs_file = git_path_submodule(submodule, "packed-refs"); + refs = &submodule_refs; + free_ref_list(refs->packed); + } else { + packed_refs_file = git_path("packed-refs"); + refs = &cached_refs; + } + + if (!refs->did_packed || submodule) { + FILE *f = fopen(packed_refs_file, "r"); + refs->packed = NULL; if (f) { - read_packed_refs(f, &cached_refs); + read_packed_refs(f, refs); fclose(f); } - cached_refs.did_packed = 1; + refs->did_packed = 1; } - return cached_refs.packed; + return refs->packed; } -static struct ref_list *get_ref_dir(const char *base, struct ref_list *list) +static struct ref_list *get_ref_dir(const char *submodule, const char *base, + struct ref_list *list) { - DIR *dir = opendir(git_path("%s", base)); + DIR *dir; + const char *path; + + if (submodule) + path = git_path_submodule(submodule, "%s", base); + else + path = git_path("%s", base); + + + dir = opendir(path); if (dir) { struct dirent *de; @@ -261,6 +283,7 @@ static struct ref_list *get_ref_dir(const char *base, struct ref_list *list) struct stat st; int flag; int namelen; + const char *refdir; if (de->d_name[0] == '.') continue; @@ -270,16 +293,27 @@ static struct ref_list *get_ref_dir(const char *base, struct ref_list *list) if (has_extension(de->d_name, ".lock")) continue; memcpy(ref + baselen, de->d_name, namelen+1); - if (stat(git_path("%s", ref), &st) < 0) + refdir = submodule + ? git_path_submodule(submodule, "%s", ref) + : git_path("%s", ref); + if (stat(refdir, &st) < 0) continue; if (S_ISDIR(st.st_mode)) { - list = get_ref_dir(ref, list); + list = get_ref_dir(submodule, ref, list); continue; } - if (!resolve_ref(ref, sha1, 1, &flag)) { + if (submodule) { hashclr(sha1); - flag |= REF_BROKEN; - } + flag = 0; + if (resolve_gitlink_ref(submodule, ref, sha1) < 0) { + hashclr(sha1); + flag |= REF_BROKEN; + } + } else + if (!resolve_ref(ref, sha1, 1, &flag)) { + hashclr(sha1); + flag |= REF_BROKEN; + } list = add_ref(ref, sha1, flag, list, NULL); } free(ref); @@ -322,10 +356,16 @@ void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) for_each_rawref(warn_if_dangling_symref, &data); } -static struct ref_list *get_loose_refs(void) +static struct ref_list *get_loose_refs(const char *submodule) { + if (submodule) { + free_ref_list(submodule_refs.loose); + submodule_refs.loose = get_ref_dir(submodule, "refs", NULL); + return submodule_refs.loose; + } + if (!cached_refs.did_loose) { - cached_refs.loose = get_ref_dir("refs", NULL); + cached_refs.loose = get_ref_dir(NULL, "refs", NULL); cached_refs.did_loose = 1; } return cached_refs.loose; @@ -459,7 +499,7 @@ const char *resolve_ref(const char *ref, unsigned char *sha1, int reading, int * git_snpath(path, sizeof(path), "%s", ref); /* Special case: non-existing file. */ if (lstat(path, &st) < 0) { - struct ref_list *list = get_packed_refs(); + struct ref_list *list = get_packed_refs(NULL); while (list) { if (!strcmp(ref, list->name)) { hashcpy(sha1, list->sha1); @@ -588,7 +628,7 @@ int peel_ref(const char *ref, unsigned char *sha1) return -1; if ((flag & REF_ISPACKED)) { - struct ref_list *list = get_packed_refs(); + struct ref_list *list = get_packed_refs(NULL); while (list) { if (!strcmp(list->name, ref)) { @@ -615,12 +655,12 @@ fallback: return -1; } -static int do_for_each_ref(const char *base, each_ref_fn fn, int trim, - int flags, void *cb_data) +static int do_for_each_ref(const char *submodule, const char *base, each_ref_fn fn, + int trim, int flags, void *cb_data) { int retval = 0; - struct ref_list *packed = get_packed_refs(); - struct ref_list *loose = get_loose_refs(); + struct ref_list *packed = get_packed_refs(submodule); + struct ref_list *loose = get_loose_refs(submodule); struct ref_list *extra; @@ -657,24 +697,38 @@ end_each: return retval; } -int head_ref(each_ref_fn fn, void *cb_data) + +static int do_head_ref(const char *submodule, each_ref_fn fn, void *cb_data) { unsigned char sha1[20]; int flag; + if (submodule) { + if (resolve_gitlink_ref(submodule, "HEAD", sha1) == 0) + return fn("HEAD", sha1, 0, cb_data); + + return 0; + } + if (resolve_ref("HEAD", sha1, 1, &flag)) return fn("HEAD", sha1, flag, cb_data); + return 0; } +int head_ref(each_ref_fn fn, void *cb_data) +{ + return do_head_ref(NULL, fn, cb_data); +} + int for_each_ref(each_ref_fn fn, void *cb_data) { - return do_for_each_ref("refs/", fn, 0, 0, cb_data); + return do_for_each_ref(NULL, "refs/", fn, 0, 0, cb_data); } int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) { - return do_for_each_ref(prefix, fn, strlen(prefix), 0, cb_data); + return do_for_each_ref(NULL, prefix, fn, strlen(prefix), 0, cb_data); } int for_each_tag_ref(each_ref_fn fn, void *cb_data) @@ -694,7 +748,7 @@ int for_each_remote_ref(each_ref_fn fn, void *cb_data) int for_each_replace_ref(each_ref_fn fn, void *cb_data) { - return do_for_each_ref("refs/replace/", fn, 13, 0, cb_data); + return do_for_each_ref(NULL, "refs/replace/", fn, 13, 0, cb_data); } int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, @@ -734,7 +788,7 @@ int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) int for_each_rawref(each_ref_fn fn, void *cb_data) { - return do_for_each_ref("refs/", fn, 0, + return do_for_each_ref(NULL, "refs/", fn, 0, DO_FOR_EACH_INCLUDE_BROKEN, cb_data); } @@ -958,7 +1012,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *ref, const unsigned char * name is a proper prefix of our refname. */ if (missing && - !is_refname_available(ref, NULL, get_packed_refs(), 0)) { + !is_refname_available(ref, NULL, get_packed_refs(NULL), 0)) { last_errno = ENOTDIR; goto error_return; } @@ -1021,7 +1075,7 @@ static int repack_without_ref(const char *refname) int fd; int found = 0; - packed_ref_list = get_packed_refs(); + packed_ref_list = get_packed_refs(NULL); for (list = packed_ref_list; list; list = list->next) { if (!strcmp(refname, list->name)) { found = 1; @@ -1110,10 +1164,10 @@ int rename_ref(const char *oldref, const char *newref, const char *logmsg) if (!symref) return error("refname %s not found", oldref); - if (!is_refname_available(newref, oldref, get_packed_refs(), 0)) + if (!is_refname_available(newref, oldref, get_packed_refs(NULL), 0)) return 1; - if (!is_refname_available(newref, oldref, get_loose_refs(), 0)) + if (!is_refname_available(newref, oldref, get_loose_refs(NULL), 0)) return 1; lock = lock_ref_sha1_basic(renamed_ref, NULL, 0, NULL); |