diff options
Diffstat (limited to 'path.c')
| -rw-r--r-- | path.c | 293 |
1 files changed, 245 insertions, 48 deletions
@@ -2,8 +2,6 @@ * Utilities for paths and pathnames */ -#define USE_THE_REPOSITORY_VARIABLE - #include "git-compat-util.h" #include "abspath.h" #include "environment.h" @@ -17,7 +15,7 @@ #include "submodule-config.h" #include "path.h" #include "packfile.h" -#include "object-store-ll.h" +#include "odb.h" #include "lockfile.h" #include "exec-cmd.h" @@ -30,7 +28,7 @@ static int get_st_mode_bits(const char *path, int *mode) return 0; } -struct strbuf *get_pathname(void) +static struct strbuf *get_pathname(void) { static struct strbuf pathname_array[4] = { STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT @@ -387,10 +385,11 @@ void report_linked_checkout_garbage(struct repository *r) strbuf_release(&sb); } -static void adjust_git_path(const struct repository *repo, +static void adjust_git_path(struct repository *repo, struct strbuf *buf, int git_dir_len) { const char *base = buf->buf + git_dir_len; + if (is_dir_file(base, "info", "grafts")) strbuf_splice(buf, 0, buf->len, repo->graft_file, strlen(repo->graft_file)); @@ -398,9 +397,9 @@ static void adjust_git_path(const struct repository *repo, strbuf_splice(buf, 0, buf->len, repo->index_file, strlen(repo->index_file)); else if (dir_prefix(base, "objects")) - replace_dir(buf, git_dir_len + 7, repo->objects->odb->path); - else if (git_hooks_path && dir_prefix(base, "hooks")) - replace_dir(buf, git_dir_len + 5, git_hooks_path); + replace_dir(buf, git_dir_len + 7, repo->objects->sources->path); + else if (repo_settings_get_hooks_path(repo) && dir_prefix(base, "hooks")) + replace_dir(buf, git_dir_len + 5, repo_settings_get_hooks_path(repo)); else if (repo->different_commondir) update_common_dir(buf, git_dir_len, repo->commondir); } @@ -414,12 +413,12 @@ static void strbuf_worktree_gitdir(struct strbuf *buf, else if (!wt->id) strbuf_addstr(buf, repo->commondir); else - strbuf_git_common_path(buf, repo, "worktrees/%s", wt->id); + repo_common_path_append(repo, buf, "worktrees/%s", wt->id); } -void repo_git_pathv(const struct repository *repo, - const struct worktree *wt, struct strbuf *buf, - const char *fmt, va_list args) +static void repo_git_pathv(struct repository *repo, + const struct worktree *wt, struct strbuf *buf, + const char *fmt, va_list args) { int gitdir_len; strbuf_worktree_gitdir(buf, repo, wt); @@ -432,7 +431,7 @@ void repo_git_pathv(const struct repository *repo, strbuf_cleanup_path(buf); } -char *repo_git_path(const struct repository *repo, +char *repo_git_path(struct repository *repo, const char *fmt, ...) { struct strbuf path = STRBUF_INIT; @@ -443,14 +442,27 @@ char *repo_git_path(const struct repository *repo, return strbuf_detach(&path, NULL); } -void strbuf_repo_git_path(struct strbuf *sb, - const struct repository *repo, - const char *fmt, ...) +const char *repo_git_path_append(struct repository *repo, + struct strbuf *sb, + const char *fmt, ...) { va_list args; va_start(args, fmt); repo_git_pathv(repo, NULL, sb, fmt, args); va_end(args); + return sb->buf; +} + +const char *repo_git_path_replace(struct repository *repo, + struct strbuf *sb, + const char *fmt, ...) +{ + va_list args; + strbuf_reset(sb); + va_start(args, fmt); + repo_git_pathv(repo, NULL, sb, fmt, args); + va_end(args); + return sb->buf; } char *mkpathdup(const char *fmt, ...) @@ -506,39 +518,56 @@ char *repo_worktree_path(const struct repository *repo, const char *fmt, ...) struct strbuf path = STRBUF_INIT; va_list args; + va_start(args, fmt); + do_worktree_path(repo, &path, fmt, args); + va_end(args); + + return strbuf_detach(&path, NULL); +} + +const char *repo_worktree_path_append(const struct repository *repo, + struct strbuf *sb, + const char *fmt, ...) +{ + va_list args; + if (!repo->worktree) return NULL; va_start(args, fmt); - do_worktree_path(repo, &path, fmt, args); + do_worktree_path(repo, sb, fmt, args); va_end(args); - return strbuf_detach(&path, NULL); + return sb->buf; } -void strbuf_repo_worktree_path(struct strbuf *sb, - const struct repository *repo, - const char *fmt, ...) +const char *repo_worktree_path_replace(const struct repository *repo, + struct strbuf *sb, + const char *fmt, ...) { va_list args; + strbuf_reset(sb); if (!repo->worktree) - return; + return NULL; va_start(args, fmt); do_worktree_path(repo, sb, fmt, args); va_end(args); + + return sb->buf; } /* Returns 0 on success, negative on failure. */ -static int do_submodule_path(struct strbuf *buf, const char *path, +static int do_submodule_path(struct repository *repo, + struct strbuf *buf, const char *path, const char *fmt, va_list args) { struct strbuf git_submodule_common_dir = STRBUF_INIT; struct strbuf git_submodule_dir = STRBUF_INIT; int ret; - ret = submodule_to_gitdir(&git_submodule_dir, path); + ret = submodule_to_gitdir(repo, &git_submodule_dir, path); if (ret) goto cleanup; @@ -557,13 +586,14 @@ cleanup: return ret; } -char *git_pathdup_submodule(const char *path, const char *fmt, ...) +char *repo_submodule_path(struct repository *repo, + const char *path, const char *fmt, ...) { int err; va_list args; struct strbuf buf = STRBUF_INIT; va_start(args, fmt); - err = do_submodule_path(&buf, path, fmt, args); + err = do_submodule_path(repo, &buf, path, fmt, args); va_end(args); if (err) { strbuf_release(&buf); @@ -572,22 +602,41 @@ char *git_pathdup_submodule(const char *path, const char *fmt, ...) return strbuf_detach(&buf, NULL); } -int strbuf_git_path_submodule(struct strbuf *buf, const char *path, - const char *fmt, ...) +const char *repo_submodule_path_append(struct repository *repo, + struct strbuf *buf, + const char *path, + const char *fmt, ...) { int err; va_list args; va_start(args, fmt); - err = do_submodule_path(buf, path, fmt, args); + err = do_submodule_path(repo, buf, path, fmt, args); va_end(args); + if (err) + return NULL; + return buf->buf; +} - return err; +const char *repo_submodule_path_replace(struct repository *repo, + struct strbuf *buf, + const char *path, + const char *fmt, ...) +{ + int err; + va_list args; + strbuf_reset(buf); + va_start(args, fmt); + err = do_submodule_path(repo, buf, path, fmt, args); + va_end(args); + if (err) + return NULL; + return buf->buf; } -void repo_common_pathv(const struct repository *repo, - struct strbuf *sb, - const char *fmt, - va_list args) +static void repo_common_pathv(const struct repository *repo, + struct strbuf *sb, + const char *fmt, + va_list args) { strbuf_addstr(sb, repo->commondir); if (sb->len && !is_dir_sep(sb->buf[sb->len - 1])) @@ -596,14 +645,38 @@ void repo_common_pathv(const struct repository *repo, strbuf_cleanup_path(sb); } -void strbuf_git_common_path(struct strbuf *sb, - const struct repository *repo, - const char *fmt, ...) +char *repo_common_path(const struct repository *repo, + const char *fmt, ...) +{ + struct strbuf sb = STRBUF_INIT; + va_list args; + va_start(args, fmt); + repo_common_pathv(repo, &sb, fmt, args); + va_end(args); + return strbuf_detach(&sb, NULL); +} + +const char *repo_common_path_append(const struct repository *repo, + struct strbuf *sb, + const char *fmt, ...) { va_list args; va_start(args, fmt); repo_common_pathv(repo, sb, fmt, args); va_end(args); + return sb->buf; +} + +const char *repo_common_path_replace(const struct repository *repo, + struct strbuf *sb, + const char *fmt, ...) +{ + va_list args; + strbuf_reset(sb); + va_start(args, fmt); + repo_common_pathv(repo, sb, fmt, args); + va_end(args); + return sb->buf; } static struct passwd *getpw_str(const char *username, size_t len) @@ -765,21 +838,22 @@ const char *enter_repo(const char *path, unsigned flags) return NULL; } -int calc_shared_perm(int mode) +int calc_shared_perm(struct repository *repo, + int mode) { int tweak; - if (get_shared_repository() < 0) - tweak = -get_shared_repository(); + if (repo_settings_get_shared_repository(repo) < 0) + tweak = -repo_settings_get_shared_repository(repo); else - tweak = get_shared_repository(); + tweak = repo_settings_get_shared_repository(repo); if (!(mode & S_IWUSR)) tweak &= ~0222; if (mode & S_IXUSR) /* Copy read bits to execute bits */ tweak |= (tweak & 0444) >> 2; - if (get_shared_repository() < 0) + if (repo_settings_get_shared_repository(repo) < 0) mode = (mode & ~0777) | tweak; else mode |= tweak; @@ -787,17 +861,17 @@ int calc_shared_perm(int mode) return mode; } - -int adjust_shared_perm(const char *path) +int adjust_shared_perm(struct repository *repo, + const char *path) { int old_mode, new_mode; - if (!get_shared_repository()) + if (!repo_settings_get_shared_repository(repo)) return 0; if (get_st_mode_bits(path, &old_mode) < 0) return -1; - new_mode = calc_shared_perm(old_mode); + new_mode = calc_shared_perm(repo, old_mode); if (S_ISDIR(old_mode)) { /* Copy read bits to execute bits */ new_mode |= (new_mode & 0444) >> 2; @@ -816,7 +890,7 @@ int adjust_shared_perm(const char *path) return 0; } -void safe_create_dir(const char *dir, int share) +void safe_create_dir(struct repository *repo, const char *dir, int share) { if (mkdir(dir, 0777) < 0) { if (errno != EEXIST) { @@ -824,10 +898,133 @@ void safe_create_dir(const char *dir, int share) exit(1); } } - else if (share && adjust_shared_perm(dir)) + else if (share && adjust_shared_perm(repo, dir)) die(_("Could not make %s writable by group"), dir); } +int safe_create_dir_in_gitdir(struct repository *repo, const char *path) +{ + if (mkdir(path, 0777)) { + int saved_errno = errno; + struct stat st; + struct strbuf sb = STRBUF_INIT; + + if (errno != EEXIST) + return -1; + /* + * Are we looking at a path in a symlinked worktree + * whose original repository does not yet have it? + * e.g. .git/rr-cache pointing at its original + * repository in which the user hasn't performed any + * conflict resolution yet? + */ + if (lstat(path, &st) || !S_ISLNK(st.st_mode) || + strbuf_readlink(&sb, path, st.st_size) || + !is_absolute_path(sb.buf) || + mkdir(sb.buf, 0777)) { + strbuf_release(&sb); + errno = saved_errno; + return -1; + } + strbuf_release(&sb); + } + return adjust_shared_perm(repo, path); +} + +static enum scld_error safe_create_leading_directories_1(struct repository *repo, + char *path) +{ + char *next_component = path + offset_1st_component(path); + enum scld_error ret = SCLD_OK; + + while (ret == SCLD_OK && next_component) { + struct stat st; + char *slash = next_component, slash_character; + + while (*slash && !is_dir_sep(*slash)) + slash++; + + if (!*slash) + break; + + next_component = slash + 1; + while (is_dir_sep(*next_component)) + next_component++; + if (!*next_component) + break; + + slash_character = *slash; + *slash = '\0'; + if (!stat(path, &st)) { + /* path exists */ + if (!S_ISDIR(st.st_mode)) { + errno = ENOTDIR; + ret = SCLD_EXISTS; + } + } else if (mkdir(path, 0777)) { + if (errno == EEXIST && + !stat(path, &st) && S_ISDIR(st.st_mode)) + ; /* somebody created it since we checked */ + else if (errno == ENOENT) + /* + * Either mkdir() failed because + * somebody just pruned the containing + * directory, or stat() failed because + * the file that was in our way was + * just removed. Either way, inform + * the caller that it might be worth + * trying again: + */ + ret = SCLD_VANISHED; + else + ret = SCLD_FAILED; + } else if (repo && adjust_shared_perm(repo, path)) { + ret = SCLD_PERMS; + } + *slash = slash_character; + } + return ret; +} + +enum scld_error safe_create_leading_directories(struct repository *repo, + char *path) +{ + return safe_create_leading_directories_1(repo, path); +} + +enum scld_error safe_create_leading_directories_no_share(char *path) +{ + return safe_create_leading_directories_1(NULL, path); +} + +enum scld_error safe_create_leading_directories_const(struct repository *repo, + const char *path) +{ + int save_errno; + /* path points to cache entries, so xstrdup before messing with it */ + char *buf = xstrdup(path); + enum scld_error result = safe_create_leading_directories(repo, buf); + + save_errno = errno; + free(buf); + errno = save_errno; + return result; +} + +int safe_create_file_with_leading_directories(struct repository *repo, + const char *path) +{ + int fd; + + fd = open(path, O_RDWR|O_CREAT|O_EXCL, 0600); + if (0 <= fd) + return fd; + + /* slow path */ + safe_create_leading_directories_const(repo, path); + return open(path, O_RDWR|O_CREAT|O_EXCL, 0600); +} + static int have_same_root(const char *path1, const char *path2) { int is_abs1, is_abs2; |