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authorbrian m. carlson <sandals@crustytoothpaste.net>2017-11-12 21:28:51 (GMT)
committerJunio C Hamano <gitster@pobox.com>2017-11-13 04:20:44 (GMT)
commitabade65b79bdf505603b3699a2f9de75b318aa6e (patch)
tree9b67706dd5b7f8fb9edf63992816f9587ed20f48 /setup.c
parent4123bcaed0897cad152c052a5fa4e499e4dafcf4 (diff)
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setup: expose enumerated repo info
We enumerate several different items as part of struct repository_format, but then actually set up those values using the global variables we've initialized from them. Instead, let's pass a pointer to the structure down to the code where we enumerate these values, so we can later on use those values directly to perform setup. This technique makes it easier for us to determine additional items about the repository format (such as the hash algorithm) and then use them for setup later on, without needing to add additional global variables. We can't avoid using the existing global variables since they're intricately intertwined with how things work at the moment, but this improves things for the future. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'setup.c')
-rw-r--r--setup.c46
1 files changed, 25 insertions, 21 deletions
diff --git a/setup.c b/setup.c
index 9476851..cf1b22c 100644
--- a/setup.c
+++ b/setup.c
@@ -434,16 +434,15 @@ static int check_repo_format(const char *var, const char *value, void *vdata)
return 0;
}
-static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
+static int check_repository_format_gently(const char *gitdir, struct repository_format *candidate, int *nongit_ok)
{
struct strbuf sb = STRBUF_INIT;
struct strbuf err = STRBUF_INIT;
- struct repository_format candidate;
int has_common;
has_common = get_common_dir(&sb, gitdir);
strbuf_addstr(&sb, "/config");
- read_repository_format(&candidate, sb.buf);
+ read_repository_format(candidate, sb.buf);
strbuf_release(&sb);
/*
@@ -451,10 +450,10 @@ static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
* we treat a missing config as a silent "ok", even when nongit_ok
* is unset.
*/
- if (candidate.version < 0)
+ if (candidate->version < 0)
return 0;
- if (verify_repository_format(&candidate, &err) < 0) {
+ if (verify_repository_format(candidate, &err) < 0) {
if (nongit_ok) {
warning("%s", err.buf);
strbuf_release(&err);
@@ -464,21 +463,21 @@ static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
die("%s", err.buf);
}
- repository_format_precious_objects = candidate.precious_objects;
- string_list_clear(&candidate.unknown_extensions, 0);
+ repository_format_precious_objects = candidate->precious_objects;
+ string_list_clear(&candidate->unknown_extensions, 0);
if (!has_common) {
- if (candidate.is_bare != -1) {
- is_bare_repository_cfg = candidate.is_bare;
+ if (candidate->is_bare != -1) {
+ is_bare_repository_cfg = candidate->is_bare;
if (is_bare_repository_cfg == 1)
inside_work_tree = -1;
}
- if (candidate.work_tree) {
+ if (candidate->work_tree) {
free(git_work_tree_cfg);
- git_work_tree_cfg = candidate.work_tree;
+ git_work_tree_cfg = candidate->work_tree;
inside_work_tree = -1;
}
} else {
- free(candidate.work_tree);
+ free(candidate->work_tree);
}
return 0;
@@ -625,6 +624,7 @@ cleanup_return:
static const char *setup_explicit_git_dir(const char *gitdirenv,
struct strbuf *cwd,
+ struct repository_format *repo_fmt,
int *nongit_ok)
{
const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT);
@@ -650,7 +650,7 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
die("Not a git repository: '%s'", gitdirenv);
}
- if (check_repository_format_gently(gitdirenv, nongit_ok)) {
+ if (check_repository_format_gently(gitdirenv, repo_fmt, nongit_ok)) {
free(gitfile);
return NULL;
}
@@ -723,9 +723,10 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
static const char *setup_discovered_git_dir(const char *gitdir,
struct strbuf *cwd, int offset,
+ struct repository_format *repo_fmt,
int *nongit_ok)
{
- if (check_repository_format_gently(gitdir, nongit_ok))
+ if (check_repository_format_gently(gitdir, repo_fmt, nongit_ok))
return NULL;
/* --work-tree is set without --git-dir; use discovered one */
@@ -737,7 +738,7 @@ static const char *setup_discovered_git_dir(const char *gitdir,
gitdir = to_free = real_pathdup(gitdir, 1);
if (chdir(cwd->buf))
die_errno("Could not come back to cwd");
- ret = setup_explicit_git_dir(gitdir, cwd, nongit_ok);
+ ret = setup_explicit_git_dir(gitdir, cwd, repo_fmt, nongit_ok);
free(to_free);
return ret;
}
@@ -769,11 +770,12 @@ static const char *setup_discovered_git_dir(const char *gitdir,
/* #16.1, #17.1, #20.1, #21.1, #22.1 (see t1510) */
static const char *setup_bare_git_dir(struct strbuf *cwd, int offset,
+ struct repository_format *repo_fmt,
int *nongit_ok)
{
int root_len;
- if (check_repository_format_gently(".", nongit_ok))
+ if (check_repository_format_gently(".", repo_fmt, nongit_ok))
return NULL;
setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1);
@@ -785,7 +787,7 @@ static const char *setup_bare_git_dir(struct strbuf *cwd, int offset,
gitdir = offset == cwd->len ? "." : xmemdupz(cwd->buf, offset);
if (chdir(cwd->buf))
die_errno("Could not come back to cwd");
- return setup_explicit_git_dir(gitdir, cwd, nongit_ok);
+ return setup_explicit_git_dir(gitdir, cwd, repo_fmt, nongit_ok);
}
inside_git_dir = 1;
@@ -1026,6 +1028,7 @@ const char *setup_git_directory_gently(int *nongit_ok)
static struct strbuf cwd = STRBUF_INIT;
struct strbuf dir = STRBUF_INIT, gitdir = STRBUF_INIT;
const char *prefix;
+ struct repository_format repo_fmt;
/*
* We may have read an incomplete configuration before
@@ -1053,18 +1056,18 @@ const char *setup_git_directory_gently(int *nongit_ok)
prefix = NULL;
break;
case GIT_DIR_EXPLICIT:
- prefix = setup_explicit_git_dir(gitdir.buf, &cwd, nongit_ok);
+ prefix = setup_explicit_git_dir(gitdir.buf, &cwd, &repo_fmt, nongit_ok);
break;
case GIT_DIR_DISCOVERED:
if (dir.len < cwd.len && chdir(dir.buf))
die(_("Cannot change to '%s'"), dir.buf);
prefix = setup_discovered_git_dir(gitdir.buf, &cwd, dir.len,
- nongit_ok);
+ &repo_fmt, nongit_ok);
break;
case GIT_DIR_BARE:
if (dir.len < cwd.len && chdir(dir.buf))
die(_("Cannot change to '%s'"), dir.buf);
- prefix = setup_bare_git_dir(&cwd, dir.len, nongit_ok);
+ prefix = setup_bare_git_dir(&cwd, dir.len, &repo_fmt, nongit_ok);
break;
case GIT_DIR_HIT_CEILING:
prefix = setup_nongit(cwd.buf, nongit_ok);
@@ -1171,7 +1174,8 @@ int git_config_perm(const char *var, const char *value)
void check_repository_format(void)
{
- check_repository_format_gently(get_git_dir(), NULL);
+ struct repository_format repo_fmt;
+ check_repository_format_gently(get_git_dir(), &repo_fmt, NULL);
startup_info->have_repository = 1;
}