diff options
Diffstat (limited to 'setup.c')
| -rw-r--r-- | setup.c | 138 |
1 files changed, 78 insertions, 60 deletions
@@ -208,24 +208,6 @@ int is_inside_work_tree(void) return inside_work_tree; } -/* - * set_work_tree() is only ever called if you set GIT_DIR explicitly. - * The old behaviour (which we retain here) is to set the work tree root - * to the cwd, unless overridden by the config, the command line, or - * GIT_WORK_TREE. - */ -static const char *set_work_tree(const char *dir) -{ - char buffer[PATH_MAX + 1]; - - if (!getcwd(buffer, sizeof(buffer))) - die ("Could not get the current working directory"); - git_work_tree_cfg = xstrdup(buffer); - inside_work_tree = 1; - - return NULL; -} - void setup_work_tree(void) { const char *work_tree, *git_dir; @@ -326,40 +308,92 @@ const char *read_gitfile_gently(const char *path) } static const char *setup_explicit_git_dir(const char *gitdirenv, - const char *work_tree_env, int *nongit_ok) + char *cwd, int len, + int *nongit_ok) { - static char buffer[1024 + 1]; - const char *retval; + const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT); + const char *worktree; + char *gitfile; - if (startup_info) - startup_info->setup_explicit = 1; if (PATH_MAX - 40 < strlen(gitdirenv)) die("'$%s' too big", GIT_DIR_ENVIRONMENT); + + gitfile = (char*)read_gitfile_gently(gitdirenv); + if (gitfile) { + gitfile = xstrdup(gitfile); + gitdirenv = gitfile; + } + if (!is_git_directory(gitdirenv)) { if (nongit_ok) { *nongit_ok = 1; + free(gitfile); return NULL; } die("Not a git repository: '%s'", gitdirenv); } - if (!work_tree_env) { - retval = set_work_tree(gitdirenv); - /* config may override worktree */ - if (check_repository_format_gently(gitdirenv, nongit_ok)) - return NULL; - return retval; + + if (check_repository_format_gently(gitdirenv, nongit_ok)) { + free(gitfile); + return NULL; } - if (check_repository_format_gently(gitdirenv, nongit_ok)) + + /* #3, #7, #11, #15, #19, #23, #27, #31 (see t1510) */ + if (work_tree_env) + set_git_work_tree(work_tree_env); + else if (is_bare_repository_cfg > 0) { + if (git_work_tree_cfg) /* #22.2, #30 */ + die("core.bare and core.worktree do not make sense"); + + /* #18, #26 */ + set_git_dir(gitdirenv); + free(gitfile); return NULL; - retval = get_relative_cwd(buffer, sizeof(buffer) - 1, - get_git_work_tree()); - if (!retval || !*retval) + } + else if (git_work_tree_cfg) { /* #6, #14 */ + if (is_absolute_path(git_work_tree_cfg)) + set_git_work_tree(git_work_tree_cfg); + else { + char core_worktree[PATH_MAX]; + if (chdir(gitdirenv)) + die_errno("Could not chdir to '%s'", gitdirenv); + if (chdir(git_work_tree_cfg)) + die_errno("Could not chdir to '%s'", git_work_tree_cfg); + if (!getcwd(core_worktree, PATH_MAX)) + die_errno("Could not get directory '%s'", git_work_tree_cfg); + if (chdir(cwd)) + die_errno("Could not come back to cwd"); + set_git_work_tree(core_worktree); + } + } + else /* #2, #10 */ + set_git_work_tree("."); + + /* set_git_work_tree() must have been called by now */ + worktree = get_git_work_tree(); + + /* both get_git_work_tree() and cwd are already normalized */ + if (!strcmp(cwd, worktree)) { /* cwd == worktree */ + set_git_dir(gitdirenv); + free(gitfile); return NULL; - set_git_dir(make_absolute_path(gitdirenv)); - if (chdir(work_tree_env) < 0) - die_errno ("Could not chdir to '%s'", work_tree_env); - strcat(buffer, "/"); - return retval; + } + + if (!prefixcmp(cwd, worktree) && + cwd[strlen(worktree)] == '/') { /* cwd inside worktree */ + set_git_dir(make_absolute_path(gitdirenv)); + if (chdir(worktree)) + die_errno("Could not chdir to '%s'", worktree); + cwd[len++] = '/'; + cwd[len] = '\0'; + free(gitfile); + return cwd + strlen(worktree) + 1; + } + + /* cwd outside worktree */ + set_git_dir(gitdirenv); + free(gitfile); + return NULL; } static const char *setup_discovered_git_dir(const char *gitdir, @@ -441,7 +475,6 @@ static dev_t get_device_or_die(const char *path, const char *prefix) */ static const char *setup_git_directory_gently_1(int *nongit_ok) { - const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT); const char *env_ceiling_dirs = getenv(CEILING_DIRECTORIES_ENVIRONMENT); static char cwd[PATH_MAX+1]; const char *gitdirenv, *ret; @@ -458,6 +491,10 @@ static const char *setup_git_directory_gently_1(int *nongit_ok) if (nongit_ok) *nongit_ok = 0; + if (!getcwd(cwd, sizeof(cwd)-1)) + die_errno("Unable to read current working directory"); + offset = len = strlen(cwd); + /* * If GIT_DIR is set explicitly, we're not going * to do any discovery, but we still do repository @@ -465,10 +502,7 @@ static const char *setup_git_directory_gently_1(int *nongit_ok) */ gitdirenv = getenv(GIT_DIR_ENVIRONMENT); if (gitdirenv) - return setup_explicit_git_dir(gitdirenv, work_tree_env, nongit_ok); - - if (!getcwd(cwd, sizeof(cwd)-1)) - die_errno("Unable to read current working directory"); + return setup_explicit_git_dir(gitdirenv, cwd, len, nongit_ok); ceil_offset = longest_ancestor_length(cwd, env_ceiling_dirs); if (ceil_offset < 0 && has_dos_drive_prefix(cwd)) @@ -485,7 +519,6 @@ static const char *setup_git_directory_gently_1(int *nongit_ok) * - ../../.git/ * etc. */ - offset = len = strlen(cwd); one_filesystem = !git_env_bool("GIT_DISCOVERY_ACROSS_FILESYSTEM", 0); if (one_filesystem) current_device = get_device_or_die(".", NULL); @@ -628,20 +661,5 @@ int check_repository_format(void) */ const char *setup_git_directory(void) { - const char *retval = setup_git_directory_gently(NULL); - - /* If the work tree is not the default one, recompute prefix */ - if ((!startup_info || startup_info->setup_explicit) && - inside_work_tree < 0) { - static char buffer[PATH_MAX + 1]; - char *rel; - if (retval && chdir(retval)) - die_errno ("Could not jump back into original cwd"); - rel = get_relative_cwd(buffer, PATH_MAX, get_git_work_tree()); - if (rel && *rel && chdir(get_git_work_tree())) - die_errno ("Could not jump to working directory"); - return rel && *rel ? strcat(rel, "/") : NULL; - } - - return retval; + return setup_git_directory_gently(NULL); } |