* This handles recursive filename detection with exclude
* files, index knowledge etc..
*
+ * See Documentation/technical/api-directory-listing.txt
+ *
* Copyright (C) Linus Torvalds, 2005-2006
* Junio Hamano, 2005-2006
*/
#include "cache.h"
#include "dir.h"
#include "refs.h"
+#include "wildmatch.h"
struct path_simplify {
int len;
{
const char *n, *first;
size_t max = 0;
+ int literal = limit_pathspec_to_literal();
if (!pathspec)
return max;
size_t i, len = 0;
for (i = 0; first == n || i < max; i++) {
char c = n[i];
- if (!c || c != first[i] || is_glob_special(c))
+ if (!c || c != first[i] || (!literal && is_glob_special(c)))
break;
if (c == '/')
len = i + 1;
static int match_one(const char *match, const char *name, int namelen)
{
int matchlen;
+ int literal = limit_pathspec_to_literal();
/* If the match was just the prefix, we matched */
if (!*match)
for (;;) {
unsigned char c1 = tolower(*match);
unsigned char c2 = tolower(*name);
- if (c1 == '\0' || is_glob_special(c1))
+ if (c1 == '\0' || (!literal && is_glob_special(c1)))
break;
if (c1 != c2)
return 0;
for (;;) {
unsigned char c1 = *match;
unsigned char c2 = *name;
- if (c1 == '\0' || is_glob_special(c1))
+ if (c1 == '\0' || (!literal && is_glob_special(c1)))
break;
if (c1 != c2)
return 0;
}
}
-
/*
* If we don't match the matchstring exactly,
* we need to match by fnmatch
*/
matchlen = strlen(match);
- if (strncmp_icase(match, name, matchlen))
+ if (strncmp_icase(match, name, matchlen)) {
+ if (literal)
+ return 0;
return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0;
+ }
if (namelen == matchlen)
return MATCHED_EXACTLY;
}
void add_exclude(const char *string, const char *base,
- int baselen, struct exclude_list *which)
+ int baselen, struct exclude_list *el)
{
struct exclude *x;
int patternlen;
x->base = base;
x->baselen = baselen;
x->flags = flags;
- ALLOC_GROW(which->excludes, which->nr + 1, which->alloc);
- which->excludes[which->nr++] = x;
+ ALLOC_GROW(el->excludes, el->nr + 1, el->alloc);
+ el->excludes[el->nr++] = x;
}
static void *read_skip_worktree_file_from_index(const char *path, size_t *size)
return data;
}
-void free_excludes(struct exclude_list *el)
+/*
+ * Frees memory within el which was allocated for exclude patterns and
+ * the file buffer. Does not free el itself.
+ */
+void clear_exclude_list(struct exclude_list *el)
{
int i;
const char *base,
int baselen,
char **buf_p,
- struct exclude_list *which,
+ struct exclude_list *el,
int check_index)
{
struct stat st;
if (buf[i] == '\n') {
if (entry != buf + i && entry[0] != '#') {
buf[i - (i && buf[i-1] == '\r')] = 0;
- add_exclude(entry, base, baselen, which);
+ add_exclude(entry, base, baselen, el);
}
entry = buf + i + 1;
}
die("cannot use %s as an exclude file", fname);
}
+/*
+ * Loads the per-directory exclude list for the substring of base
+ * which has a char length of baselen.
+ */
static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
{
struct exclude_list *el;
(baselen + strlen(dir->exclude_per_dir) >= PATH_MAX))
return; /* too long a path -- ignore */
- /* Pop the ones that are not the prefix of the path being checked. */
+ /* Pop the directories that are not the prefix of the path being checked. */
el = &dir->exclude_list[EXC_DIRS];
while ((stk = dir->exclude_stack) != NULL) {
if (stk->baselen <= baselen &&
namelen -= prefix;
}
- return fnmatch_icase(pattern, name, FNM_PATHNAME) == 0;
+ return wildmatch(pattern, name,
+ ignore_case ? FNM_CASEFOLD : 0) == 0;
}
-/* Scan the list and let the last match determine the fate.
- * Return 1 for exclude, 0 for include and -1 for undecided.
+/*
+ * Scan the given exclude list in reverse to see whether pathname
+ * should be ignored. The first match (i.e. the last on the list), if
+ * any, determines the fate. Returns the exclude_list element which
+ * matched, or NULL for undecided.
*/
-int excluded_from_list(const char *pathname,
- int pathlen, const char *basename, int *dtype,
- struct exclude_list *el)
+static struct exclude *last_exclude_matching_from_list(const char *pathname,
+ int pathlen,
+ const char *basename,
+ int *dtype,
+ struct exclude_list *el)
{
int i;
if (!el->nr)
- return -1; /* undefined */
+ return NULL; /* undefined */
for (i = el->nr - 1; 0 <= i; i--) {
struct exclude *x = el->excludes[i];
const char *exclude = x->pattern;
- int to_exclude = x->flags & EXC_FLAG_NEGATIVE ? 0 : 1;
int prefix = x->nowildcardlen;
if (x->flags & EXC_FLAG_MUSTBEDIR) {
pathlen - (basename - pathname),
exclude, prefix, x->patternlen,
x->flags))
- return to_exclude;
+ return x;
continue;
}
if (match_pathname(pathname, pathlen,
x->base, x->baselen ? x->baselen - 1 : 0,
exclude, prefix, x->patternlen, x->flags))
- return to_exclude;
+ return x;
}
+ return NULL; /* undecided */
+}
+
+/*
+ * Scan the list and let the last match determine the fate.
+ * Return 1 for exclude, 0 for include and -1 for undecided.
+ */
+int is_excluded_from_list(const char *pathname,
+ int pathlen, const char *basename, int *dtype,
+ struct exclude_list *el)
+{
+ struct exclude *exclude;
+ exclude = last_exclude_matching_from_list(pathname, pathlen, basename, dtype, el);
+ if (exclude)
+ return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1;
return -1; /* undecided */
}
-static int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
+/*
+ * Loads the exclude lists for the directory containing pathname, then
+ * scans all exclude lists to determine whether pathname is excluded.
+ * Returns the exclude_list element which matched, or NULL for
+ * undecided.
+ */
+static struct exclude *last_exclude_matching(struct dir_struct *dir,
+ const char *pathname,
+ int *dtype_p)
{
int pathlen = strlen(pathname);
int st;
+ struct exclude *exclude;
const char *basename = strrchr(pathname, '/');
basename = (basename) ? basename+1 : pathname;
prep_exclude(dir, pathname, basename-pathname);
for (st = EXC_CMDL; st <= EXC_FILE; st++) {
- switch (excluded_from_list(pathname, pathlen, basename,
- dtype_p, &dir->exclude_list[st])) {
- case 0:
- return 0;
- case 1:
- return 1;
- }
+ exclude = last_exclude_matching_from_list(
+ pathname, pathlen, basename, dtype_p,
+ &dir->exclude_list[st]);
+ if (exclude)
+ return exclude;
}
+ return NULL;
+}
+
+/*
+ * Loads the exclude lists for the directory containing pathname, then
+ * scans all exclude lists to determine whether pathname is excluded.
+ * Returns 1 if true, otherwise 0.
+ */
+static int is_excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
+{
+ struct exclude *exclude =
+ last_exclude_matching(dir, pathname, dtype_p);
+ if (exclude)
+ return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1;
return 0;
}
struct dir_struct *dir)
{
check->dir = dir;
+ check->exclude = NULL;
strbuf_init(&check->path, 256);
}
}
/*
- * Is this name excluded? This is for a caller like show_files() that
- * do not honor directory hierarchy and iterate through paths that are
- * possibly in an ignored directory.
+ * For each subdirectory in name, starting with the top-most, checks
+ * to see if that subdirectory is excluded, and if so, returns the
+ * corresponding exclude structure. Otherwise, checks whether name
+ * itself (which is presumably a file) is excluded.
*
* A path to a directory known to be excluded is left in check->path to
* optimize for repeated checks for files in the same excluded directory.
*/
-int path_excluded(struct path_exclude_check *check,
- const char *name, int namelen, int *dtype)
+struct exclude *last_exclude_matching_path(struct path_exclude_check *check,
+ const char *name, int namelen,
+ int *dtype)
{
int i;
struct strbuf *path = &check->path;
+ struct exclude *exclude;
/*
* we allow the caller to pass namelen as an optimization; it
* must match the length of the name, as we eventually call
- * excluded() on the whole name string.
+ * is_excluded() on the whole name string.
*/
if (namelen < 0)
namelen = strlen(name);
+ /*
+ * If path is non-empty, and name is equal to path or a
+ * subdirectory of path, name should be excluded, because
+ * it's inside a directory which is already known to be
+ * excluded and was previously left in check->path.
+ */
if (path->len &&
path->len <= namelen &&
!memcmp(name, path->buf, path->len) &&
(!name[path->len] || name[path->len] == '/'))
- return 1;
+ return check->exclude;
strbuf_setlen(path, 0);
for (i = 0; name[i]; i++) {
if (ch == '/') {
int dt = DT_DIR;
- if (excluded(check->dir, path->buf, &dt))
- return 1;
+ exclude = last_exclude_matching(check->dir,
+ path->buf, &dt);
+ if (exclude) {
+ check->exclude = exclude;
+ return exclude;
+ }
}
strbuf_addch(path, ch);
}
/* An entry in the index; cannot be a directory with subentries */
strbuf_setlen(path, 0);
- return excluded(check->dir, name, dtype);
+ return last_exclude_matching(check->dir, name, dtype);
+}
+
+/*
+ * Is this name excluded? This is for a caller like show_files() that
+ * do not honor directory hierarchy and iterate through paths that are
+ * possibly in an ignored directory.
+ */
+int is_path_excluded(struct path_exclude_check *check,
+ const char *name, int namelen, int *dtype)
+{
+ struct exclude *exclude =
+ last_exclude_matching_path(check, name, namelen, dtype);
+ if (exclude)
+ return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1;
+ return 0;
}
static struct dir_entry *dir_entry_new(const char *pathname, int len)
const struct path_simplify *simplify,
int dtype, struct dirent *de)
{
- int exclude = excluded(dir, path->buf, &dtype);
+ int exclude = is_excluded(dir, path->buf, &dtype);
if (exclude && (dir->flags & DIR_COLLECT_IGNORED)
&& exclude_matches_pathspec(path->buf, path->len, simplify))
dir_add_ignored(dir, path->buf, path->len);
item->match = path;
item->len = strlen(path);
- item->nowildcard_len = simple_length(path);
item->flags = 0;
- if (item->nowildcard_len < item->len) {
- pathspec->has_wildcard = 1;
- if (path[item->nowildcard_len] == '*' &&
- no_wildcard(path + item->nowildcard_len + 1))
- item->flags |= PATHSPEC_ONESTAR;
+ if (limit_pathspec_to_literal()) {
+ item->nowildcard_len = item->len;
+ } else {
+ item->nowildcard_len = simple_length(path);
+ if (item->nowildcard_len < item->len) {
+ pathspec->has_wildcard = 1;
+ if (path[item->nowildcard_len] == '*' &&
+ no_wildcard(path + item->nowildcard_len + 1))
+ item->flags |= PATHSPEC_ONESTAR;
+ }
}
}
free(pathspec->items);
pathspec->items = NULL;
}
+
+int limit_pathspec_to_literal(void)
+{
+ static int flag = -1;
+ if (flag < 0)
+ flag = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);
+ return flag;
+}