Merge pull request #2328 from libgit2/rb/how-broken-can-ignores-be Improve checks for ignore containment
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diff --git a/src/attr_file.c b/src/attr_file.c
index 156a23d..3e95a21 100644
--- a/src/attr_file.c
+++ b/src/attr_file.c
@@ -281,7 +281,7 @@ uint32_t git_attr_file__name_hash(const char *name)
int git_attr_file__lookup_one(
git_attr_file *file,
- const git_attr_path *path,
+ git_attr_path *path,
const char *attr,
const char **value)
{
@@ -342,14 +342,11 @@ int git_attr_file__load_standalone(git_attr_file **out, const char *path)
bool git_attr_fnmatch__match(
git_attr_fnmatch *match,
- const git_attr_path *path)
+ git_attr_path *path)
{
const char *filename;
int flags = 0;
- if ((match->flags & GIT_ATTR_FNMATCH_DIRECTORY) && !path->is_dir)
- return false;
-
if (match->flags & GIT_ATTR_FNMATCH_ICASE)
flags |= FNM_CASEFOLD;
if (match->flags & GIT_ATTR_FNMATCH_LEADINGDIR)
@@ -365,12 +362,28 @@ bool git_attr_fnmatch__match(
flags |= FNM_LEADING_DIR;
}
+ if ((match->flags & GIT_ATTR_FNMATCH_DIRECTORY) && !path->is_dir) {
+ int matchval;
+
+ /* for attribute checks or root ignore checks, fail match */
+ if (!(match->flags & GIT_ATTR_FNMATCH_IGNORE) ||
+ path->basename == path->path)
+ return false;
+
+ /* for ignore checks, use container of current item for check */
+ path->basename[-1] = '\0';
+ flags |= FNM_LEADING_DIR;
+ matchval = p_fnmatch(match->pattern, path->path, flags);
+ path->basename[-1] = '/';
+ return (matchval != FNM_NOMATCH);
+ }
+
return (p_fnmatch(match->pattern, filename, flags) != FNM_NOMATCH);
}
bool git_attr_rule__match(
git_attr_rule *rule,
- const git_attr_path *path)
+ git_attr_path *path)
{
bool matched = git_attr_fnmatch__match(&rule->match, path);
diff --git a/src/attr_file.h b/src/attr_file.h
index e50aec0..87cde7e 100644
--- a/src/attr_file.h
+++ b/src/attr_file.h
@@ -138,7 +138,7 @@ int git_attr_file__clear_rules(
int git_attr_file__lookup_one(
git_attr_file *file,
- const git_attr_path *path,
+ git_attr_path *path,
const char *attr,
const char **value);
@@ -162,13 +162,13 @@ extern int git_attr_fnmatch__parse(
extern bool git_attr_fnmatch__match(
git_attr_fnmatch *rule,
- const git_attr_path *path);
+ git_attr_path *path);
extern void git_attr_rule__free(git_attr_rule *rule);
extern bool git_attr_rule__match(
git_attr_rule *rule,
- const git_attr_path *path);
+ git_attr_path *path);
extern git_attr_assignment *git_attr_rule__lookup_assignment(
git_attr_rule *rule, const char *name);
diff --git a/src/diff.c b/src/diff.c
index bc23e6b..b3e3610 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -633,7 +633,6 @@ typedef struct {
git_iterator *new_iter;
const git_index_entry *oitem;
const git_index_entry *nitem;
- git_buf ignore_prefix;
} diff_in_progress;
#define MODE_BITS_MASK 0000777
@@ -844,24 +843,13 @@ static int handle_unmatched_new_item(
/* check if this is a prefix of the other side */
contains_oitem = entry_is_prefixed(diff, info->oitem, nitem);
- /* check if this is contained in an ignored parent directory */
- if (git_buf_len(&info->ignore_prefix)) {
- if (diff->pfxcomp(nitem->path, git_buf_cstr(&info->ignore_prefix)) == 0)
- delta_type = GIT_DELTA_IGNORED;
- else
- git_buf_clear(&info->ignore_prefix);
- }
+ /* update delta_type if this item is ignored */
+ if (git_iterator_current_is_ignored(info->new_iter))
+ delta_type = GIT_DELTA_IGNORED;
if (nitem->mode == GIT_FILEMODE_TREE) {
bool recurse_into_dir = contains_oitem;
- /* if not already inside an ignored dir, check if this is ignored */
- if (delta_type != GIT_DELTA_IGNORED &&
- git_iterator_current_is_ignored(info->new_iter)) {
- delta_type = GIT_DELTA_IGNORED;
- git_buf_sets(&info->ignore_prefix, nitem->path);
- }
-
/* check if user requests recursion into this type of dir */
recurse_into_dir = contains_oitem ||
(delta_type == GIT_DELTA_UNTRACKED &&
@@ -938,27 +926,12 @@ static int handle_unmatched_new_item(
}
}
- /* In core git, the next two checks are effectively reversed --
- * i.e. when an file contained in an ignored directory is explicitly
- * ignored, it shows up as an ignored file in the diff list, even though
- * other untracked files in the same directory are skipped completely.
- *
- * To me, this seems odd. If the directory is ignored and the file is
- * untracked, we should skip it consistently, regardless of whether it
- * happens to match a pattern in the ignore file.
- *
- * To match the core git behavior, reverse the following two if checks
- * so that individual file ignores are checked before container
- * directory exclusions are used to skip the file.
- */
else if (delta_type == GIT_DELTA_IGNORED &&
- DIFF_FLAG_ISNT_SET(diff, GIT_DIFF_RECURSE_IGNORED_DIRS))
+ DIFF_FLAG_ISNT_SET(diff, GIT_DIFF_RECURSE_IGNORED_DIRS) &&
+ git_iterator_current_tree_is_ignored(info->new_iter))
/* item contained in ignored directory, so skip over it */
return git_iterator_advance(&info->nitem, info->new_iter);
- else if (git_iterator_current_is_ignored(info->new_iter))
- delta_type = GIT_DELTA_IGNORED;
-
else if (info->new_iter->type != GIT_ITERATOR_TYPE_WORKDIR)
delta_type = GIT_DELTA_ADDED;
@@ -1068,7 +1041,6 @@ int git_diff__from_iterators(
info.repo = repo;
info.old_iter = old_iter;
info.new_iter = new_iter;
- git_buf_init(&info.ignore_prefix, 0);
/* make iterators have matching icase behavior */
if (DIFF_FLAG_IS_SET(diff, GIT_DIFF_IGNORE_CASE)) {
@@ -1123,8 +1095,6 @@ cleanup:
else
git_diff_free(diff);
- git_buf_free(&info.ignore_prefix);
-
return error;
}
diff --git a/src/ignore.c b/src/ignore.c
index f373c94..78f01ac 100644
--- a/src/ignore.c
+++ b/src/ignore.c
@@ -248,14 +248,15 @@ void git_ignore__free(git_ignores *ignores)
}
static bool ignore_lookup_in_rules(
- git_attr_file *file, git_attr_path *path, int *ignored)
+ int *ignored, git_attr_file *file, git_attr_path *path)
{
size_t j;
git_attr_fnmatch *match;
git_vector_rforeach(&file->rules, j, match) {
if (git_attr_fnmatch__match(match, path)) {
- *ignored = ((match->flags & GIT_ATTR_FNMATCH_NEGATIVE) == 0);
+ *ignored = ((match->flags & GIT_ATTR_FNMATCH_NEGATIVE) == 0) ?
+ GIT_IGNORE_TRUE : GIT_IGNORE_FALSE;
return true;
}
}
@@ -264,34 +265,34 @@ static bool ignore_lookup_in_rules(
}
int git_ignore__lookup(
- git_ignores *ignores, const char *pathname, int *ignored)
+ int *out, git_ignores *ignores, const char *pathname)
{
unsigned int i;
git_attr_file *file;
git_attr_path path;
+ *out = GIT_IGNORE_NOTFOUND;
+
if (git_attr_path__init(
&path, pathname, git_repository_workdir(ignores->repo)) < 0)
return -1;
/* first process builtins - success means path was found */
- if (ignore_lookup_in_rules(ignores->ign_internal, &path, ignored))
+ if (ignore_lookup_in_rules(out, ignores->ign_internal, &path))
goto cleanup;
/* next process files in the path */
git_vector_foreach(&ignores->ign_path, i, file) {
- if (ignore_lookup_in_rules(file, &path, ignored))
+ if (ignore_lookup_in_rules(out, file, &path))
goto cleanup;
}
/* last process global ignores */
git_vector_foreach(&ignores->ign_global, i, file) {
- if (ignore_lookup_in_rules(file, &path, ignored))
+ if (ignore_lookup_in_rules(out, file, &path))
goto cleanup;
}
- *ignored = 0;
-
cleanup:
git_attr_path__free(&path);
return 0;
@@ -335,8 +336,6 @@ int git_ignore_path_is_ignored(
int error;
const char *workdir;
git_attr_path path;
- char *tail, *end;
- bool full_is_dir;
git_ignores ignores;
unsigned int i;
git_attr_file *file;
@@ -345,55 +344,42 @@ int git_ignore_path_is_ignored(
workdir = repo ? git_repository_workdir(repo) : NULL;
- if ((error = git_attr_path__init(&path, pathname, workdir)) < 0)
- return error;
+ memset(&path, 0, sizeof(path));
+ memset(&ignores, 0, sizeof(ignores));
- tail = path.path;
- end = &path.full.ptr[path.full.size];
- full_is_dir = path.is_dir;
+ if ((error = git_attr_path__init(&path, pathname, workdir)) < 0 ||
+ (error = git_ignore__for_path(repo, path.path, &ignores)) < 0)
+ goto cleanup;
while (1) {
- /* advance to next component of path */
- path.basename = tail;
-
- while (tail < end && *tail != '/') tail++;
- *tail = '\0';
-
- path.full.size = (tail - path.full.ptr);
- path.is_dir = (tail == end) ? full_is_dir : true;
-
- /* initialize ignores the first time through */
- if (path.basename == path.path &&
- (error = git_ignore__for_path(repo, path.path, &ignores)) < 0)
- break;
-
/* first process builtins - success means path was found */
- if (ignore_lookup_in_rules(ignores.ign_internal, &path, ignored))
+ if (ignore_lookup_in_rules(ignored, ignores.ign_internal, &path))
goto cleanup;
/* next process files in the path */
git_vector_foreach(&ignores.ign_path, i, file) {
- if (ignore_lookup_in_rules(file, &path, ignored))
+ if (ignore_lookup_in_rules(ignored, file, &path))
goto cleanup;
}
/* last process global ignores */
git_vector_foreach(&ignores.ign_global, i, file) {
- if (ignore_lookup_in_rules(file, &path, ignored))
+ if (ignore_lookup_in_rules(ignored, file, &path))
goto cleanup;
}
- /* if we found no rules before reaching the end, we're done */
- if (tail == end)
+ /* move up one directory */
+ if (path.basename == path.path)
break;
-
- /* now add this directory to list of ignores */
- if ((error = git_ignore__push_dir(&ignores, path.path)) < 0)
+ path.basename[-1] = '\0';
+ while (path.basename > path.path && *path.basename != '/')
+ path.basename--;
+ if (path.basename > path.path)
+ path.basename++;
+ path.is_dir = 1;
+
+ if ((error = git_ignore__pop_dir(&ignores)) < 0)
break;
-
- /* reinstate divider in path */
- *tail = '/';
- while (*tail == '/') tail++;
}
*ignored = 0;
@@ -404,7 +390,6 @@ cleanup:
return error;
}
-
int git_ignore__check_pathspec_for_exact_ignores(
git_repository *repo,
git_vector *vspec,
diff --git a/src/ignore.h b/src/ignore.h
index ff93690..77668c6 100644
--- a/src/ignore.h
+++ b/src/ignore.h
@@ -42,7 +42,14 @@ extern int git_ignore__pop_dir(git_ignores *ign);
extern void git_ignore__free(git_ignores *ign);
-extern int git_ignore__lookup(git_ignores *ign, const char *path, int *ignored);
+enum {
+ GIT_IGNORE_UNCHECKED = -2,
+ GIT_IGNORE_NOTFOUND = -1,
+ GIT_IGNORE_FALSE = 0,
+ GIT_IGNORE_TRUE = 1,
+};
+
+extern int git_ignore__lookup(int *out, git_ignores *ign, const char *path);
/* command line Git sometimes generates an error message if given a
* pathspec that contains an exact match to an ignored file (provided
diff --git a/src/iterator.c b/src/iterator.c
index 4f8087c..c664f17 100644
--- a/src/iterator.c
+++ b/src/iterator.c
@@ -897,6 +897,7 @@ struct fs_iterator_frame {
fs_iterator_frame *next;
git_vector entries;
size_t index;
+ int is_ignored;
};
typedef struct fs_iterator fs_iterator;
@@ -1290,16 +1291,28 @@ GIT_INLINE(bool) workdir_path_is_dotgit(const git_buf *path)
static int workdir_iterator__enter_dir(fs_iterator *fi)
{
+ workdir_iterator *wi = (workdir_iterator *)fi;
fs_iterator_frame *ff = fi->stack;
size_t pos;
git_path_with_stat *entry;
bool found_submodules = false;
- /* only push new ignores if this is not top level directory */
+ /* check if this directory is ignored */
+ if (git_ignore__lookup(
+ &ff->is_ignored, &wi->ignores, fi->path.ptr + fi->root_len) < 0) {
+ giterr_clear();
+ ff->is_ignored = GIT_IGNORE_NOTFOUND;
+ }
+
+ /* if this is not the top level directory... */
if (ff->next != NULL) {
- workdir_iterator *wi = (workdir_iterator *)fi;
ssize_t slash_pos = git_buf_rfind_next(&fi->path, '/');
+ /* inherit ignored from parent if no rule specified */
+ if (ff->is_ignored <= GIT_IGNORE_NOTFOUND)
+ ff->is_ignored = ff->next->is_ignored;
+
+ /* push new ignores for files in this directory */
(void)git_ignore__push_dir(&wi->ignores, &fi->path.ptr[slash_pos + 1]);
}
@@ -1342,7 +1355,7 @@ static int workdir_iterator__update_entry(fs_iterator *fi)
return GIT_ENOTFOUND;
/* reset is_ignored since we haven't checked yet */
- wi->is_ignored = -1;
+ wi->is_ignored = GIT_IGNORE_UNCHECKED;
return 0;
}
@@ -1487,6 +1500,19 @@ int git_iterator_current_parent_tree(
return 0;
}
+static void workdir_iterator_update_is_ignored(workdir_iterator *wi)
+{
+ if (git_ignore__lookup(
+ &wi->is_ignored, &wi->ignores, wi->fi.entry.path) < 0) {
+ giterr_clear();
+ wi->is_ignored = GIT_IGNORE_NOTFOUND;
+ }
+
+ /* use ignore from containing frame stack */
+ if (wi->is_ignored <= GIT_IGNORE_NOTFOUND)
+ wi->is_ignored = wi->fi.stack->is_ignored;
+}
+
bool git_iterator_current_is_ignored(git_iterator *iter)
{
workdir_iterator *wi = (workdir_iterator *)iter;
@@ -1494,14 +1520,22 @@ bool git_iterator_current_is_ignored(git_iterator *iter)
if (iter->type != GIT_ITERATOR_TYPE_WORKDIR)
return false;
- if (wi->is_ignored != -1)
- return (bool)(wi->is_ignored != 0);
+ if (wi->is_ignored != GIT_IGNORE_UNCHECKED)
+ return (bool)(wi->is_ignored == GIT_IGNORE_TRUE);
- if (git_ignore__lookup(
- &wi->ignores, wi->fi.entry.path, &wi->is_ignored) < 0)
- wi->is_ignored = true;
+ workdir_iterator_update_is_ignored(wi);
+
+ return (bool)(wi->is_ignored == GIT_IGNORE_TRUE);
+}
+
+bool git_iterator_current_tree_is_ignored(git_iterator *iter)
+{
+ workdir_iterator *wi = (workdir_iterator *)iter;
+
+ if (iter->type != GIT_ITERATOR_TYPE_WORKDIR)
+ return false;
- return (bool)wi->is_ignored;
+ return (bool)(wi->fi.stack->is_ignored == GIT_IGNORE_TRUE);
}
int git_iterator_cmp(git_iterator *iter, const char *path_prefix)
@@ -1549,10 +1583,8 @@ int git_iterator_advance_over_with_status(
return error;
if (!S_ISDIR(entry->mode)) {
- if (git_ignore__lookup(
- &wi->ignores, wi->fi.entry.path, &wi->is_ignored) < 0)
- wi->is_ignored = true;
- if (wi->is_ignored)
+ workdir_iterator_update_is_ignored(wi);
+ if (wi->is_ignored == GIT_IGNORE_TRUE)
*status = GIT_ITERATOR_STATUS_IGNORED;
return git_iterator_advance(entryptr, iter);
}
@@ -1564,14 +1596,12 @@ int git_iterator_advance_over_with_status(
/* scan inside directory looking for a non-ignored item */
while (entry && !iter->prefixcomp(entry->path, base)) {
- if (git_ignore__lookup(
- &wi->ignores, wi->fi.entry.path, &wi->is_ignored) < 0)
- wi->is_ignored = true;
+ workdir_iterator_update_is_ignored(wi);
/* if we found an explicitly ignored item, then update from
* EMPTY to IGNORED
*/
- if (wi->is_ignored)
+ if (wi->is_ignored == GIT_IGNORE_TRUE)
*status = GIT_ITERATOR_STATUS_IGNORED;
else if (S_ISDIR(entry->mode)) {
error = git_iterator_advance_into(&entry, iter);
@@ -1580,7 +1610,7 @@ int git_iterator_advance_over_with_status(
continue;
else if (error == GIT_ENOTFOUND) {
error = 0;
- wi->is_ignored = true; /* mark empty directories as ignored */
+ wi->is_ignored = GIT_IGNORE_TRUE; /* mark empty dirs ignored */
} else
break; /* real error, stop here */
} else {
diff --git a/src/iterator.h b/src/iterator.h
index f678302..d88ad51 100644
--- a/src/iterator.h
+++ b/src/iterator.h
@@ -245,6 +245,8 @@ extern int git_iterator_current_parent_tree(
extern bool git_iterator_current_is_ignored(git_iterator *iter);
+extern bool git_iterator_current_tree_is_ignored(git_iterator *iter);
+
extern int git_iterator_cmp(
git_iterator *iter, const char *path_prefix);
diff --git a/tests/diff/iterator.c b/tests/diff/iterator.c
index cdc64eb..a2df1c7 100644
--- a/tests/diff/iterator.c
+++ b/tests/diff/iterator.c
@@ -647,7 +647,7 @@ static void workdir_iterator_test(
void test_diff_iterator__workdir_0(void)
{
- workdir_iterator_test("attr", NULL, NULL, 27, 1, NULL, "ign");
+ workdir_iterator_test("attr", NULL, NULL, 23, 5, NULL, "ign");
}
static const char *status_paths[] = {
diff --git a/tests/status/ignore.c b/tests/status/ignore.c
index caa1f19..a4e766f 100644
--- a/tests/status/ignore.c
+++ b/tests/status/ignore.c
@@ -681,3 +681,110 @@ void test_status_ignore__issue_1766_negated_ignores(void)
}
}
+static void add_one_to_index(const char *file)
+{
+ git_index *index;
+ cl_git_pass(git_repository_index(&index, g_repo));
+ cl_git_pass(git_index_add_bypath(index, file));
+ git_index_free(index);
+}
+
+/* Some further broken scenarios that have been reported */
+void test_status_ignore__more_breakage(void)
+{
+ static const char *test_files[] = {
+ "empty_standard_repo/d1/pfx-d2/d3/d4/d5/tracked",
+ "empty_standard_repo/d1/pfx-d2/d3/d4/d5/untracked",
+ "empty_standard_repo/d1/pfx-d2/d3/d4/untracked",
+ NULL
+ };
+
+ make_test_data("empty_standard_repo", test_files);
+ cl_git_mkfile(
+ "empty_standard_repo/.gitignore",
+ "/d1/pfx-*\n"
+ "!/d1/pfx-d2/\n"
+ "/d1/pfx-d2/*\n"
+ "!/d1/pfx-d2/d3/\n"
+ "/d1/pfx-d2/d3/*\n"
+ "!/d1/pfx-d2/d3/d4/\n");
+ add_one_to_index("d1/pfx-d2/d3/d4/d5/tracked");
+
+ {
+ git_status_options opts = GIT_STATUS_OPTIONS_INIT;
+ status_entry_counts counts;
+ static const char *files[] = {
+ ".gitignore",
+ "d1/pfx-d2/d3/d4/d5/tracked",
+ "d1/pfx-d2/d3/d4/d5/untracked",
+ "d1/pfx-d2/d3/d4/untracked",
+ };
+ static const unsigned int statuses[] = {
+ GIT_STATUS_WT_NEW,
+ GIT_STATUS_INDEX_NEW,
+ GIT_STATUS_WT_NEW,
+ GIT_STATUS_WT_NEW,
+ };
+
+ memset(&counts, 0x0, sizeof(status_entry_counts));
+ counts.expected_entry_count = 4;
+ counts.expected_paths = files;
+ counts.expected_statuses = statuses;
+ opts.flags = GIT_STATUS_OPT_DEFAULTS |
+ GIT_STATUS_OPT_INCLUDE_IGNORED |
+ GIT_STATUS_OPT_RECURSE_IGNORED_DIRS;
+ cl_git_pass(git_status_foreach_ext(
+ g_repo, &opts, cb_status__normal, &counts));
+
+ cl_assert_equal_i(counts.expected_entry_count, counts.entry_count);
+ cl_assert_equal_i(0, counts.wrong_status_flags_count);
+ cl_assert_equal_i(0, counts.wrong_sorted_path);
+ }
+
+ refute_is_ignored("d1/pfx-d2/d3/d4/d5/tracked");
+ refute_is_ignored("d1/pfx-d2/d3/d4/d5/untracked");
+ refute_is_ignored("d1/pfx-d2/d3/d4/untracked");
+}
+
+void test_status_ignore__negative_ignores_inside_ignores(void)
+{
+ static const char *test_files[] = {
+ "empty_standard_repo/top/mid/btm/tracked",
+ "empty_standard_repo/top/mid/btm/untracked",
+ NULL
+ };
+
+ make_test_data("empty_standard_repo", test_files);
+ cl_git_mkfile(
+ "empty_standard_repo/.gitignore",
+ "top\n!top/mid/btm\n");
+ add_one_to_index("top/mid/btm/tracked");
+
+ {
+ git_status_options opts = GIT_STATUS_OPTIONS_INIT;
+ status_entry_counts counts;
+ static const char *files[] = {
+ ".gitignore", "top/mid/btm/tracked", "top/mid/btm/untracked",
+ };
+ static const unsigned int statuses[] = {
+ GIT_STATUS_WT_NEW, GIT_STATUS_INDEX_NEW, GIT_STATUS_WT_NEW,
+ };
+
+ memset(&counts, 0x0, sizeof(status_entry_counts));
+ counts.expected_entry_count = 3;
+ counts.expected_paths = files;
+ counts.expected_statuses = statuses;
+ opts.flags = GIT_STATUS_OPT_DEFAULTS |
+ GIT_STATUS_OPT_INCLUDE_IGNORED |
+ GIT_STATUS_OPT_RECURSE_IGNORED_DIRS;
+ cl_git_pass(git_status_foreach_ext(
+ g_repo, &opts, cb_status__normal, &counts));
+
+ cl_assert_equal_i(counts.expected_entry_count, counts.entry_count);
+ cl_assert_equal_i(0, counts.wrong_status_flags_count);
+ cl_assert_equal_i(0, counts.wrong_sorted_path);
+ }
+
+ refute_is_ignored("top/mid/btm/tracked");
+ refute_is_ignored("top/mid/btm/untracked");
+}