From e4e303479b62e474c52ee1f9edd265d7333117d9 Mon Sep 17 00:00:00 2001 From: Jonathan Nieder Date: Sat, 24 Jul 2010 06:19:44 -0500 Subject: [PATCH] setup: split off $GIT_DIR-set case from setup_git_directory_gently If $GIT_DIR is set, setup_git_directory_gently does not have to do any repository discovery at all. Split off a function for the validation it still does do, in the hope that this will make setup_git_directory_gently proper less daunting to read. Signed-off-by: Jonathan Nieder Signed-off-by: Junio C Hamano --- setup.c | 69 +++++++++++++++++++++++++++++++-------------------------- 1 file changed, 37 insertions(+), 32 deletions(-) diff --git a/setup.c b/setup.c index 276916052..16bee6d48 100644 --- a/setup.c +++ b/setup.c @@ -313,6 +313,41 @@ const char *read_gitfile_gently(const char *path) return path; } +static const char *setup_explicit_git_dir(const char *gitdirenv, + const char *work_tree_env, int *nongit_ok) +{ + static char buffer[1024 + 1]; + const char *retval; + + if (PATH_MAX - 40 < strlen(gitdirenv)) + die("'$%s' too big", GIT_DIR_ENVIRONMENT); + if (!is_git_directory(gitdirenv)) { + if (nongit_ok) { + *nongit_ok = 1; + 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(nongit_ok)) + return NULL; + return retval; + } + if (check_repository_format_gently(nongit_ok)) + return NULL; + retval = get_relative_cwd(buffer, sizeof(buffer) - 1, + get_git_work_tree()); + if (!retval || !*retval) + 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; +} + /* * We cannot decide in this function whether we are in the work tree or * not, since the config can only be read _after_ this function was called. @@ -343,38 +378,8 @@ const char *setup_git_directory_gently(int *nongit_ok) * validation. */ gitdirenv = getenv(GIT_DIR_ENVIRONMENT); - if (gitdirenv) { - if (PATH_MAX - 40 < strlen(gitdirenv)) - die("'$%s' too big", GIT_DIR_ENVIRONMENT); - if (is_git_directory(gitdirenv)) { - static char buffer[1024 + 1]; - const char *retval; - - if (!work_tree_env) { - retval = set_work_tree(gitdirenv); - /* config may override worktree */ - if (check_repository_format_gently(nongit_ok)) - return NULL; - return retval; - } - if (check_repository_format_gently(nongit_ok)) - return NULL; - retval = get_relative_cwd(buffer, sizeof(buffer) - 1, - get_git_work_tree()); - if (!retval || !*retval) - 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 (nongit_ok) { - *nongit_ok = 1; - return NULL; - } - die("Not a git repository: '%s'", gitdirenv); - } + 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"); -- 2.26.2