зеркало из https://github.com/microsoft/git.git
Merge branch 'en/fill-directory-fixes'
Assorted fixes to the directory traversal API. * en/fill-directory-fixes: dir.c: use st_add3() for allocation size dir: consolidate similar code in treat_directory() dir: synchronize treat_leading_path() and read_directory_recursive() dir: fix checks on common prefix directory dir: break part of read_directory_recursive() out for reuse dir: exit before wildcard fall-through if there is no wildcard dir: remove stray quote character in comment Revert "dir.c: make 'git-status --ignored' work within leading directories" t3011: demonstrate directory traversal failures
This commit is contained in:
Junio C Hamano
Коммит
d2189a721c
189
dir.c
189
dir.c
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|
@ -371,12 +371,19 @@ static int match_pathspec_item(const struct index_state *istate,
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!ps_strncmp(item, match, name, namelen))
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return MATCHED_RECURSIVELY_LEADING_PATHSPEC;
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/* name" doesn't match up to the first wild character */
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/* name doesn't match up to the first wild character */
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if (item->nowildcard_len < item->len &&
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ps_strncmp(item, match, name,
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item->nowildcard_len - prefix))
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return 0;
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/*
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* name has no wildcard, and it didn't match as a leading
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* pathspec so return.
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*/
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if (item->nowildcard_len == item->len)
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return 0;
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/*
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* Here is where we would perform a wildmatch to check if
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* "name" can be matched as a directory (or a prefix) against
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@ -1652,6 +1659,8 @@ static enum path_treatment treat_directory(struct dir_struct *dir,
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const char *dirname, int len, int baselen, int exclude,
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const struct pathspec *pathspec)
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{
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int nested_repo = 0;
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/* The "len-1" is to strip the final '/' */
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switch (directory_exists_in_index(istate, dirname, len-1)) {
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case index_directory:
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@ -1661,15 +1670,16 @@ static enum path_treatment treat_directory(struct dir_struct *dir,
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return path_none;
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case index_nonexistent:
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if (dir->flags & DIR_SKIP_NESTED_GIT) {
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int nested_repo;
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if ((dir->flags & DIR_SKIP_NESTED_GIT) ||
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!(dir->flags & DIR_NO_GITLINKS)) {
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struct strbuf sb = STRBUF_INIT;
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strbuf_addstr(&sb, dirname);
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nested_repo = is_nonbare_repository_dir(&sb);
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strbuf_release(&sb);
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if (nested_repo)
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return path_none;
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}
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if (nested_repo)
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return ((dir->flags & DIR_SKIP_NESTED_GIT) ? path_none :
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(exclude ? path_excluded : path_untracked));
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if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
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break;
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@ -1697,13 +1707,6 @@ static enum path_treatment treat_directory(struct dir_struct *dir,
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return path_none;
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}
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if (!(dir->flags & DIR_NO_GITLINKS)) {
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struct strbuf sb = STRBUF_INIT;
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strbuf_addstr(&sb, dirname);
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if (is_nonbare_repository_dir(&sb))
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return exclude ? path_excluded : path_untracked;
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strbuf_release(&sb);
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}
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return path_recurse;
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}
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@ -2123,6 +2126,40 @@ static void close_cached_dir(struct cached_dir *cdir)
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}
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}
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static void add_path_to_appropriate_result_list(struct dir_struct *dir,
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struct untracked_cache_dir *untracked,
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struct cached_dir *cdir,
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struct index_state *istate,
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struct strbuf *path,
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int baselen,
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const struct pathspec *pathspec,
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enum path_treatment state)
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{
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/* add the path to the appropriate result list */
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switch (state) {
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case path_excluded:
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if (dir->flags & DIR_SHOW_IGNORED)
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dir_add_name(dir, istate, path->buf, path->len);
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else if ((dir->flags & DIR_SHOW_IGNORED_TOO) ||
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((dir->flags & DIR_COLLECT_IGNORED) &&
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exclude_matches_pathspec(path->buf, path->len,
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pathspec)))
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dir_add_ignored(dir, istate, path->buf, path->len);
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break;
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case path_untracked:
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if (dir->flags & DIR_SHOW_IGNORED)
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break;
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dir_add_name(dir, istate, path->buf, path->len);
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if (cdir->fdir)
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add_untracked(untracked, path->buf + baselen);
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break;
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default:
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break;
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}
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}
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/*
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* Read a directory tree. We currently ignore anything but
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* directories, regular files and symlinks. That's because git
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@ -2147,6 +2184,15 @@ static enum path_treatment read_directory_recursive(struct dir_struct *dir,
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struct untracked_cache_dir *untracked, int check_only,
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int stop_at_first_file, const struct pathspec *pathspec)
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{
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/*
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* WARNING WARNING WARNING:
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*
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* Any updates to the traversal logic here may need corresponding
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* updates in treat_leading_path(). See the commit message for the
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* commit adding this warning as well as the commit preceding it
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* for details.
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*/
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struct cached_dir cdir;
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enum path_treatment state, subdir_state, dir_state = path_none;
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struct strbuf path = STRBUF_INIT;
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@ -2226,29 +2272,9 @@ static enum path_treatment read_directory_recursive(struct dir_struct *dir,
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continue;
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}
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/* add the path to the appropriate result list */
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switch (state) {
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case path_excluded:
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if (dir->flags & DIR_SHOW_IGNORED)
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dir_add_name(dir, istate, path.buf, path.len);
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else if ((dir->flags & DIR_SHOW_IGNORED_TOO) ||
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((dir->flags & DIR_COLLECT_IGNORED) &&
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exclude_matches_pathspec(path.buf, path.len,
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pathspec)))
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dir_add_ignored(dir, istate, path.buf, path.len);
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break;
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case path_untracked:
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if (dir->flags & DIR_SHOW_IGNORED)
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break;
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dir_add_name(dir, istate, path.buf, path.len);
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if (cdir.fdir)
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add_untracked(untracked, path.buf + baselen);
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break;
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default:
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break;
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}
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add_path_to_appropriate_result_list(dir, untracked, &cdir,
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istate, &path, baselen,
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pathspec, state);
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}
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close_cached_dir(&cdir);
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out:
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@ -2278,41 +2304,104 @@ static int treat_leading_path(struct dir_struct *dir,
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const char *path, int len,
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const struct pathspec *pathspec)
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{
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/*
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* WARNING WARNING WARNING:
|
||||
*
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||||
* Any updates to the traversal logic here may need corresponding
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||||
* updates in treat_leading_path(). See the commit message for the
|
||||
* commit adding this warning as well as the commit preceding it
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* for details.
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*/
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struct strbuf sb = STRBUF_INIT;
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int baselen, rc = 0;
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int prevlen, baselen;
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const char *cp;
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int old_flags = dir->flags;
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struct cached_dir cdir;
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struct dirent *de;
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enum path_treatment state = path_none;
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/*
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* For each directory component of path, we are going to check whether
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* that path is relevant given the pathspec. For example, if path is
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* foo/bar/baz/
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* then we will ask treat_path() whether we should go into foo, then
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* whether we should go into bar, then whether baz is relevant.
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* Checking each is important because e.g. if path is
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* .git/info/
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* then we need to check .git to know we shouldn't traverse it.
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* If the return from treat_path() is:
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* * path_none, for any path, we return false.
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* * path_recurse, for all path components, we return true
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* * <anything else> for some intermediate component, we make sure
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* to add that path to the relevant list but return false
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* signifying that we shouldn't recurse into it.
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*/
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while (len && path[len - 1] == '/')
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len--;
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if (!len)
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return 1;
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/*
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* We need a manufactured dirent with sufficient space to store a
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* leading directory component of path in its d_name. Here, we
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* assume that the dirent's d_name is either declared as
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* char d_name[BIG_ENOUGH]
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* or that it is declared at the end of the struct as
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* char d_name[]
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* For either case, padding with len+1 bytes at the end will ensure
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* sufficient storage space.
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*/
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de = xcalloc(1, st_add3(sizeof(struct dirent), len, 1));
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memset(&cdir, 0, sizeof(cdir));
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cdir.de = de;
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#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
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de->d_type = DT_DIR;
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#endif
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baselen = 0;
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dir->flags &= ~DIR_SHOW_OTHER_DIRECTORIES;
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prevlen = 0;
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while (1) {
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cp = path + baselen + !!baselen;
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prevlen = baselen + !!baselen;
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cp = path + prevlen;
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cp = memchr(cp, '/', path + len - cp);
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if (!cp)
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baselen = len;
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else
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baselen = cp - path;
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strbuf_setlen(&sb, 0);
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strbuf_reset(&sb);
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strbuf_add(&sb, path, baselen);
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if (!is_directory(sb.buf))
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break;
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if (simplify_away(sb.buf, sb.len, pathspec))
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break;
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if (treat_one_path(dir, NULL, istate, &sb, baselen, pathspec,
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DT_DIR, NULL) == path_none)
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break; /* do not recurse into it */
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if (len <= baselen) {
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rc = 1;
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break; /* finished checking */
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strbuf_reset(&sb);
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strbuf_add(&sb, path, prevlen);
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memcpy(de->d_name, path+prevlen, baselen-prevlen);
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de->d_name[baselen-prevlen] = '\0';
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state = treat_path(dir, NULL, &cdir, istate, &sb, prevlen,
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pathspec);
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if (state == path_untracked &&
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get_dtype(cdir.de, istate, sb.buf, sb.len) == DT_DIR &&
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(dir->flags & DIR_SHOW_IGNORED_TOO ||
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do_match_pathspec(istate, pathspec, sb.buf, sb.len,
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baselen, NULL, DO_MATCH_LEADING_PATHSPEC) == MATCHED_RECURSIVELY_LEADING_PATHSPEC)) {
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add_path_to_appropriate_result_list(dir, NULL, &cdir,
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istate,
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&sb, baselen,
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pathspec, state);
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state = path_recurse;
|
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}
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|
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if (state != path_recurse)
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break; /* do not recurse into it */
|
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if (len <= baselen)
|
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break; /* finished checking */
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}
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add_path_to_appropriate_result_list(dir, NULL, &cdir, istate,
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&sb, baselen, pathspec,
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state);
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free(de);
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strbuf_release(&sb);
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dir->flags = old_flags;
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return rc;
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return state == path_recurse;
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}
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static const char *get_ident_string(void)
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|
|
|
|||
|
|
@ -0,0 +1,209 @@
|
|||
#!/bin/sh
|
||||
|
||||
test_description='directory traversal handling, especially with common prefixes'
|
||||
|
||||
. ./test-lib.sh
|
||||
|
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test_expect_success 'setup' '
|
||||
test_commit hello &&
|
||||
|
||||
>empty &&
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||||
mkdir untracked_dir &&
|
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>untracked_dir/empty &&
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git init untracked_repo &&
|
||||
>untracked_repo/empty &&
|
||||
|
||||
cat <<-EOF >.gitignore &&
|
||||
ignored
|
||||
an_ignored_dir/
|
||||
EOF
|
||||
mkdir an_ignored_dir &&
|
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mkdir an_untracked_dir &&
|
||||
>an_ignored_dir/ignored &&
|
||||
>an_ignored_dir/untracked &&
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||||
>an_untracked_dir/ignored &&
|
||||
>an_untracked_dir/untracked
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o shows the right entries' '
|
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cat <<-EOF >expect &&
|
||||
.gitignore
|
||||
actual
|
||||
an_ignored_dir/ignored
|
||||
an_ignored_dir/untracked
|
||||
an_untracked_dir/ignored
|
||||
an_untracked_dir/untracked
|
||||
empty
|
||||
expect
|
||||
untracked_dir/empty
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o --exclude-standard shows the right entries' '
|
||||
cat <<-EOF >expect &&
|
||||
.gitignore
|
||||
actual
|
||||
an_untracked_dir/untracked
|
||||
empty
|
||||
expect
|
||||
untracked_dir/empty
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o --exclude-standard >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o untracked_dir recurses' '
|
||||
echo untracked_dir/empty >expect &&
|
||||
git ls-files -o untracked_dir >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o untracked_dir/ recurses' '
|
||||
echo untracked_dir/empty >expect &&
|
||||
git ls-files -o untracked_dir/ >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o --directory untracked_dir does not recurse' '
|
||||
echo untracked_dir/ >expect &&
|
||||
git ls-files -o --directory untracked_dir >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o --directory untracked_dir/ does not recurse' '
|
||||
echo untracked_dir/ >expect &&
|
||||
git ls-files -o --directory untracked_dir/ >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o untracked_repo does not recurse' '
|
||||
echo untracked_repo/ >expect &&
|
||||
git ls-files -o untracked_repo >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o untracked_repo/ does not recurse' '
|
||||
echo untracked_repo/ >expect &&
|
||||
git ls-files -o untracked_repo/ >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o untracked_dir untracked_repo recurses into untracked_dir only' '
|
||||
cat <<-EOF >expect &&
|
||||
untracked_dir/empty
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o untracked_dir untracked_repo >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o untracked_dir/ untracked_repo/ recurses into untracked_dir only' '
|
||||
cat <<-EOF >expect &&
|
||||
untracked_dir/empty
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o untracked_dir/ untracked_repo/ >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o --directory untracked_dir untracked_repo does not recurse' '
|
||||
cat <<-EOF >expect &&
|
||||
untracked_dir/
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o --directory untracked_dir untracked_repo >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o --directory untracked_dir/ untracked_repo/ does not recurse' '
|
||||
cat <<-EOF >expect &&
|
||||
untracked_dir/
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o --directory untracked_dir/ untracked_repo/ >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o .git shows nothing' '
|
||||
git ls-files -o .git >actual &&
|
||||
test_must_be_empty actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o .git/ shows nothing' '
|
||||
git ls-files -o .git/ >actual &&
|
||||
test_must_be_empty actual
|
||||
'
|
||||
|
||||
test_expect_success FUNNYNAMES 'git ls-files -o untracked_* recurses appropriately' '
|
||||
mkdir "untracked_*" &&
|
||||
>"untracked_*/empty" &&
|
||||
|
||||
cat <<-EOF >expect &&
|
||||
untracked_*/empty
|
||||
untracked_dir/empty
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o "untracked_*" >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
# It turns out fill_directory returns the right paths, but ls-files' post-call
|
||||
# filtering in show_dir_entry() via calling dir_path_match() which ends up
|
||||
# in git_fnmatch() has logic for PATHSPEC_ONESTAR that assumes the pathspec
|
||||
# must match the full path; it doesn't check it for matching a leading
|
||||
# directory.
|
||||
test_expect_failure FUNNYNAMES 'git ls-files -o untracked_*/ recurses appropriately' '
|
||||
cat <<-EOF >expect &&
|
||||
untracked_*/empty
|
||||
untracked_dir/empty
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o "untracked_*/" >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success FUNNYNAMES 'git ls-files -o --directory untracked_* does not recurse' '
|
||||
cat <<-EOF >expect &&
|
||||
untracked_*/
|
||||
untracked_dir/
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o --directory "untracked_*" >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success FUNNYNAMES 'git ls-files -o --directory untracked_*/ does not recurse' '
|
||||
cat <<-EOF >expect &&
|
||||
untracked_*/
|
||||
untracked_dir/
|
||||
untracked_repo/
|
||||
EOF
|
||||
git ls-files -o --directory "untracked_*/" >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_expect_success 'git ls-files -o consistent between one or two dirs' '
|
||||
git ls-files -o --exclude-standard an_ignored_dir/ an_untracked_dir/ >tmp &&
|
||||
! grep ^an_ignored_dir/ tmp >expect &&
|
||||
git ls-files -o --exclude-standard an_ignored_dir/ >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
# ls-files doesn't have a way to request showing both untracked and ignored
|
||||
# files at the same time, so use `git status --ignored`
|
||||
test_expect_success 'git status --ignored shows same files under dir with or without pathspec' '
|
||||
cat <<-EOF >expect &&
|
||||
?? an_untracked_dir/
|
||||
!! an_untracked_dir/ignored
|
||||
EOF
|
||||
git status --porcelain --ignored >output &&
|
||||
grep an_untracked_dir output >expect &&
|
||||
git status --porcelain --ignored an_untracked_dir/ >actual &&
|
||||
test_cmp expect actual
|
||||
'
|
||||
|
||||
test_done
|
||||
|
|
@ -43,11 +43,16 @@ test_expect_success 'status untracked directory with --ignored -u' '
|
|||
test_cmp expected actual
|
||||
'
|
||||
cat >expected <<\EOF
|
||||
?? untracked/uncommitted
|
||||
?? untracked/
|
||||
!! untracked/ignored
|
||||
EOF
|
||||
|
||||
test_expect_success 'status prefixed untracked directory with --ignored' '
|
||||
test_expect_success 'status of untracked directory with --ignored works with or without prefix' '
|
||||
git status --porcelain --ignored >tmp &&
|
||||
grep untracked/ tmp >actual &&
|
||||
rm tmp &&
|
||||
test_cmp expected actual &&
|
||||
|
||||
git status --porcelain --ignored untracked/ >actual &&
|
||||
test_cmp expected actual
|
||||
'
|
||||
|
|
|
|||
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