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-rw-r--r--setup.c126
1 files changed, 80 insertions, 46 deletions
diff --git a/setup.c b/setup.c
index 5e55306083..979b13f0c6 100644
--- a/setup.c
+++ b/setup.c
@@ -387,7 +387,7 @@ const char *read_gitfile(const char *path)
}
static const char *setup_explicit_git_dir(const char *gitdirenv,
- char *cwd, int len,
+ struct strbuf *cwd,
int *nongit_ok)
{
const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT);
@@ -434,16 +434,16 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
if (is_absolute_path(git_work_tree_cfg))
set_git_work_tree(git_work_tree_cfg);
else {
- char core_worktree[PATH_MAX];
+ char *core_worktree;
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))
+ core_worktree = xgetcwd();
+ if (chdir(cwd->buf))
die_errno("Could not come back to cwd");
set_git_work_tree(core_worktree);
+ free(core_worktree);
}
}
else if (!git_env_bool(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, 1)) {
@@ -459,21 +459,20 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
worktree = get_git_work_tree();
/* both get_git_work_tree() and cwd are already normalized */
- if (!strcmp(cwd, worktree)) { /* cwd == worktree */
+ if (!strcmp(cwd->buf, worktree)) { /* cwd == worktree */
set_git_dir(gitdirenv);
free(gitfile);
return NULL;
}
- offset = dir_inside_of(cwd, worktree);
+ offset = dir_inside_of(cwd->buf, worktree);
if (offset >= 0) { /* cwd inside worktree? */
set_git_dir(real_path(gitdirenv));
if (chdir(worktree))
die_errno("Could not chdir to '%s'", worktree);
- cwd[len++] = '/';
- cwd[len] = '\0';
+ strbuf_addch(cwd, '/');
free(gitfile);
- return cwd + offset;
+ return cwd->buf + offset;
}
/* cwd outside worktree */
@@ -483,7 +482,7 @@ static const char *setup_explicit_git_dir(const char *gitdirenv,
}
static const char *setup_discovered_git_dir(const char *gitdir,
- char *cwd, int offset, int len,
+ struct strbuf *cwd, int offset,
int *nongit_ok)
{
if (check_repository_format_gently(gitdir, nongit_ok))
@@ -491,17 +490,17 @@ static const char *setup_discovered_git_dir(const char *gitdir,
/* --work-tree is set without --git-dir; use discovered one */
if (getenv(GIT_WORK_TREE_ENVIRONMENT) || git_work_tree_cfg) {
- if (offset != len && !is_absolute_path(gitdir))
+ if (offset != cwd->len && !is_absolute_path(gitdir))
gitdir = xstrdup(real_path(gitdir));
- if (chdir(cwd))
+ if (chdir(cwd->buf))
die_errno("Could not come back to cwd");
- return setup_explicit_git_dir(gitdir, cwd, len, nongit_ok);
+ return setup_explicit_git_dir(gitdir, cwd, nongit_ok);
}
/* #16.2, #17.2, #20.2, #21.2, #24, #25, #28, #29 (see t1510) */
if (is_bare_repository_cfg > 0) {
- set_git_dir(offset == len ? gitdir : real_path(gitdir));
- if (chdir(cwd))
+ set_git_dir(offset == cwd->len ? gitdir : real_path(gitdir));
+ if (chdir(cwd->buf))
die_errno("Could not come back to cwd");
return NULL;
}
@@ -512,18 +511,18 @@ static const char *setup_discovered_git_dir(const char *gitdir,
set_git_dir(gitdir);
inside_git_dir = 0;
inside_work_tree = 1;
- if (offset == len)
+ if (offset == cwd->len)
return NULL;
/* Make "offset" point to past the '/', and add a '/' at the end */
offset++;
- cwd[len++] = '/';
- cwd[len] = 0;
- return cwd + offset;
+ strbuf_addch(cwd, '/');
+ return cwd->buf + offset;
}
/* #16.1, #17.1, #20.1, #21.1, #22.1 (see t1510) */
-static const char *setup_bare_git_dir(char *cwd, int offset, int len, int *nongit_ok)
+static const char *setup_bare_git_dir(struct strbuf *cwd, int offset,
+ int *nongit_ok)
{
int root_len;
@@ -536,20 +535,20 @@ static const char *setup_bare_git_dir(char *cwd, int offset, int len, int *nongi
if (getenv(GIT_WORK_TREE_ENVIRONMENT) || git_work_tree_cfg) {
const char *gitdir;
- gitdir = offset == len ? "." : xmemdupz(cwd, offset);
- if (chdir(cwd))
+ 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, len, nongit_ok);
+ return setup_explicit_git_dir(gitdir, cwd, nongit_ok);
}
inside_git_dir = 1;
inside_work_tree = 0;
- if (offset != len) {
- if (chdir(cwd))
+ if (offset != cwd->len) {
+ if (chdir(cwd->buf))
die_errno("Cannot come back to cwd");
- root_len = offset_1st_component(cwd);
- cwd[offset > root_len ? offset : root_len] = '\0';
- set_git_dir(cwd);
+ root_len = offset_1st_component(cwd->buf);
+ strbuf_setlen(cwd, offset > root_len ? offset : root_len);
+ set_git_dir(cwd->buf);
}
else
set_git_dir(".");
@@ -617,14 +616,23 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
{
const char *env_ceiling_dirs = getenv(CEILING_DIRECTORIES_ENVIRONMENT);
struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
- static char cwd[PATH_MAX + 1];
+ static struct strbuf cwd = STRBUF_INIT;
const char *gitdirenv, *ret;
char *gitfile;
- int len, offset, offset_parent, ceil_offset = -1;
+ int offset, offset_parent, ceil_offset = -1;
dev_t current_device = 0;
int one_filesystem = 1;
/*
+ * We may have read an incomplete configuration before
+ * setting-up the git directory. If so, clear the cache so
+ * that the next queries to the configuration reload complete
+ * configuration (including the per-repo config file that we
+ * ignored previously).
+ */
+ git_config_clear();
+
+ /*
* Let's assume that we are in a git repository.
* If it turns out later that we are somewhere else, the value will be
* updated accordingly.
@@ -632,9 +640,9 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
if (nongit_ok)
*nongit_ok = 0;
- if (!getcwd(cwd, sizeof(cwd) - 1))
+ if (strbuf_getcwd(&cwd))
die_errno("Unable to read current working directory");
- offset = len = strlen(cwd);
+ offset = cwd.len;
/*
* If GIT_DIR is set explicitly, we're not going
@@ -643,7 +651,7 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
*/
gitdirenv = getenv(GIT_DIR_ENVIRONMENT);
if (gitdirenv)
- return setup_explicit_git_dir(gitdirenv, cwd, len, nongit_ok);
+ return setup_explicit_git_dir(gitdirenv, &cwd, nongit_ok);
if (env_ceiling_dirs) {
int empty_entry_found = 0;
@@ -651,11 +659,11 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
string_list_split(&ceiling_dirs, env_ceiling_dirs, PATH_SEP, -1);
filter_string_list(&ceiling_dirs, 0,
canonicalize_ceiling_entry, &empty_entry_found);
- ceil_offset = longest_ancestor_length(cwd, &ceiling_dirs);
+ ceil_offset = longest_ancestor_length(cwd.buf, &ceiling_dirs);
string_list_clear(&ceiling_dirs, 0);
}
- if (ceil_offset < 0 && has_dos_drive_prefix(cwd))
+ if (ceil_offset < 0 && has_dos_drive_prefix(cwd.buf))
ceil_offset = 1;
/*
@@ -683,7 +691,7 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
if (gitdirenv) {
ret = setup_discovered_git_dir(gitdirenv,
- cwd, offset, len,
+ &cwd, offset,
nongit_ok);
free(gitfile);
return ret;
@@ -691,29 +699,31 @@ static const char *setup_git_directory_gently_1(int *nongit_ok)
free(gitfile);
if (is_git_directory("."))
- return setup_bare_git_dir(cwd, offset, len, nongit_ok);
+ return setup_bare_git_dir(&cwd, offset, nongit_ok);
offset_parent = offset;
- while (--offset_parent > ceil_offset && cwd[offset_parent] != '/');
+ while (--offset_parent > ceil_offset && cwd.buf[offset_parent] != '/');
if (offset_parent <= ceil_offset)
- return setup_nongit(cwd, nongit_ok);
+ return setup_nongit(cwd.buf, nongit_ok);
if (one_filesystem) {
- dev_t parent_device = get_device_or_die("..", cwd, offset);
+ dev_t parent_device = get_device_or_die("..", cwd.buf,
+ offset);
if (parent_device != current_device) {
if (nongit_ok) {
- if (chdir(cwd))
+ if (chdir(cwd.buf))
die_errno("Cannot come back to cwd");
*nongit_ok = 1;
return NULL;
}
- cwd[offset] = '\0';
+ strbuf_setlen(&cwd, offset);
die("Not a git repository (or any parent up to mount point %s)\n"
- "Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).", cwd);
+ "Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).",
+ cwd.buf);
}
}
if (chdir("..")) {
- cwd[offset] = '\0';
- die_errno("Cannot change to '%s/..'", cwd);
+ strbuf_setlen(&cwd, offset);
+ die_errno("Cannot change to '%s/..'", cwd.buf);
}
offset = offset_parent;
}
@@ -841,3 +851,27 @@ void sanitize_stdfds(void)
if (fd > 2)
close(fd);
}
+
+int daemonize(void)
+{
+#ifdef NO_POSIX_GOODIES
+ errno = ENOSYS;
+ return -1;
+#else
+ switch (fork()) {
+ case 0:
+ break;
+ case -1:
+ die_errno("fork failed");
+ default:
+ exit(0);
+ }
+ if (setsid() == -1)
+ die_errno("setsid failed");
+ close(0);
+ close(1);
+ close(2);
+ sanitize_stdfds();
+ return 0;
+#endif
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 08:44:53 +0000