/*
* If it's not a git repo, return NULL. Be very conservative.
*/
struct git_repository *is_git_repository(const char *filename, const char **branchp, const char **remote)
{
int flen, blen, ret;
int offset = 1;
struct stat st;
git_repository *repo;
char *loc, *branch;
flen = strlen(filename);
if (!flen || filename[--flen] != ']')
return NULL;
/* Find the matching '[' */
blen = 0;
while (flen && filename[--flen] != '[')
blen++;
/* Ignore slashes at the end of the repo name */
while (flen && filename[flen-1] == '/') {
flen--;
offset++;
}
if (!flen)
return NULL;
/*
* This is the "point of no return": the name matches
* the git repository name rules, and we will no longer
* return NULL.
*
* We will either return "dummy_git_repository" and the
* branch pointer will have the _whole_ filename in it,
* or we will return a real git repository with the
* branch pointer being filled in with just the branch
* name.
*
* The actual git reading/writing routines can use this
* to generate proper error messages.
*/
*branchp = filename;
loc = format_string("%.*s", flen, filename);
if (!loc)
return dummy_git_repository;
branch = format_string("%.*s", blen, filename + flen + offset);
if (!branch) {
free(loc);
return dummy_git_repository;
}
repo = is_remote_git_repository(loc, branch);
if (repo) {
if (remote)
*remote = loc;
else
free(loc);
*branchp = branch;
return repo;
}
if (stat(loc, &st) < 0 || !S_ISDIR(st.st_mode)) {
free(loc);
free(branch);
return dummy_git_repository;
}
ret = git_repository_open(&repo, loc);
free(loc);
if (ret < 0) {
free(branch);
return dummy_git_repository;
}
if (remote)
*remote = NULL;
*branchp = branch;
return repo;
}
/*
* If it's not a git repo, return NULL. Be very conservative.
*/
struct git_repository *is_git_repository(const char *filename, const char **branchp, const char **remote, bool dry_run)
{
int flen, blen, ret;
int offset = 1;
struct stat st;
git_repository *repo;
char *loc, *branch;
flen = strlen(filename);
if (!flen || filename[--flen] != ']')
return NULL;
/*
* Special-case "file://", and treat it as a local
* repository since libgit2 is insanely slow for that.
*/
if (!strncmp(filename, "file://", 7)) {
filename += 7;
flen -= 7;
}
/* Find the matching '[' */
blen = 0;
while (flen && filename[--flen] != '[')
blen++;
/* Ignore slashes at the end of the repo name */
while (flen && filename[flen-1] == '/') {
flen--;
offset++;
}
if (!flen)
return NULL;
/*
* This is the "point of no return": the name matches
* the git repository name rules, and we will no longer
* return NULL.
*
* We will either return "dummy_git_repository" and the
* branch pointer will have the _whole_ filename in it,
* or we will return a real git repository with the
* branch pointer being filled in with just the branch
* name.
*
* The actual git reading/writing routines can use this
* to generate proper error messages.
*/
*branchp = filename;
loc = format_string("%.*s", flen, filename);
if (!loc)
return dummy_git_repository;
branch = format_string("%.*s", blen, filename + flen + offset);
if (!branch) {
free(loc);
return dummy_git_repository;
}
if (dry_run) {
*branchp = branch;
*remote = loc;
return dummy_git_repository;
}
repo = is_remote_git_repository(loc, branch);
if (repo) {
if (remote)
*remote = loc;
else
free(loc);
*branchp = branch;
return repo;
}
if (subsurface_stat(loc, &st) < 0 || !S_ISDIR(st.st_mode)) {
if (verbose)
fprintf(stderr, "loc %s wasn't found or is not a directory\n", loc);
free(loc);
free(branch);
return dummy_git_repository;
}
ret = git_repository_open(&repo, loc);
free(loc);
if (ret < 0) {
free(branch);
return dummy_git_repository;
}
if (remote)
*remote = NULL;
*branchp = branch;
return repo;
}
