* 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"
+#include "pathspec.h"
+#include "utf8.h"
+#include "varint.h"
+#include "ewah/ewok.h"
struct path_simplify {
int len;
const char *path;
};
-static int read_directory_recursive(struct dir_struct *dir, const char *path, int len,
+/*
+ * Tells read_directory_recursive how a file or directory should be treated.
+ * Values are ordered by significance, e.g. if a directory contains both
+ * excluded and untracked files, it is listed as untracked because
+ * path_untracked > path_excluded.
+ */
+enum path_treatment {
+ path_none = 0,
+ path_recurse,
+ path_excluded,
+ path_untracked
+};
+
+/*
+ * Support data structure for our opendir/readdir/closedir wrappers
+ */
+struct cached_dir {
+ DIR *fdir;
+ struct untracked_cache_dir *untracked;
+ int nr_files;
+ int nr_dirs;
+
+ struct dirent *de;
+ const char *file;
+ struct untracked_cache_dir *ucd;
+};
+
+static enum path_treatment read_directory_recursive(struct dir_struct *dir,
+ const char *path, int len, struct untracked_cache_dir *untracked,
int check_only, const struct path_simplify *simplify);
static int get_dtype(struct dirent *de, const char *path, int len);
int fnmatch_icase(const char *pattern, const char *string, int flags)
{
- return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
+ return wildmatch(pattern, string,
+ flags | (ignore_case ? WM_CASEFOLD : 0),
+ NULL);
}
-static size_t common_prefix_len(const char **pathspec)
+int git_fnmatch(const struct pathspec_item *item,
+ const char *pattern, const char *string,
+ int prefix)
{
- const char *n, *first;
+ if (prefix > 0) {
+ if (ps_strncmp(item, pattern, string, prefix))
+ return WM_NOMATCH;
+ pattern += prefix;
+ string += prefix;
+ }
+ if (item->flags & PATHSPEC_ONESTAR) {
+ int pattern_len = strlen(++pattern);
+ int string_len = strlen(string);
+ return string_len < pattern_len ||
+ ps_strcmp(item, pattern,
+ string + string_len - pattern_len);
+ }
+ if (item->magic & PATHSPEC_GLOB)
+ return wildmatch(pattern, string,
+ WM_PATHNAME |
+ (item->magic & PATHSPEC_ICASE ? WM_CASEFOLD : 0),
+ NULL);
+ else
+ /* wildmatch has not learned no FNM_PATHNAME mode yet */
+ return wildmatch(pattern, string,
+ item->magic & PATHSPEC_ICASE ? WM_CASEFOLD : 0,
+ NULL);
+}
+
+static int fnmatch_icase_mem(const char *pattern, int patternlen,
+ const char *string, int stringlen,
+ int flags)
+{
+ int match_status;
+ struct strbuf pat_buf = STRBUF_INIT;
+ struct strbuf str_buf = STRBUF_INIT;
+ const char *use_pat = pattern;
+ const char *use_str = string;
+
+ if (pattern[patternlen]) {
+ strbuf_add(&pat_buf, pattern, patternlen);
+ use_pat = pat_buf.buf;
+ }
+ if (string[stringlen]) {
+ strbuf_add(&str_buf, string, stringlen);
+ use_str = str_buf.buf;
+ }
+
+ if (ignore_case)
+ flags |= WM_CASEFOLD;
+ match_status = wildmatch(use_pat, use_str, flags, NULL);
+
+ strbuf_release(&pat_buf);
+ strbuf_release(&str_buf);
+
+ return match_status;
+}
+
+static size_t common_prefix_len(const struct pathspec *pathspec)
+{
+ int n;
size_t max = 0;
- if (!pathspec)
- return max;
-
- first = *pathspec;
- while ((n = *pathspec++)) {
- 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))
+ /*
+ * ":(icase)path" is treated as a pathspec full of
+ * wildcard. In other words, only prefix is considered common
+ * prefix. If the pathspec is abc/foo abc/bar, running in
+ * subdir xyz, the common prefix is still xyz, not xuz/abc as
+ * in non-:(icase).
+ */
+ GUARD_PATHSPEC(pathspec,
+ PATHSPEC_FROMTOP |
+ PATHSPEC_MAXDEPTH |
+ PATHSPEC_LITERAL |
+ PATHSPEC_GLOB |
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
+
+ for (n = 0; n < pathspec->nr; n++) {
+ size_t i = 0, len = 0, item_len;
+ if (pathspec->items[n].magic & PATHSPEC_EXCLUDE)
+ continue;
+ if (pathspec->items[n].magic & PATHSPEC_ICASE)
+ item_len = pathspec->items[n].prefix;
+ else
+ item_len = pathspec->items[n].nowildcard_len;
+ while (i < item_len && (n == 0 || i < max)) {
+ char c = pathspec->items[n].match[i];
+ if (c != pathspec->items[0].match[i])
break;
if (c == '/')
len = i + 1;
+ i++;
}
- if (first == n || len < max) {
+ if (n == 0 || len < max) {
max = len;
if (!max)
break;
* Returns a copy of the longest leading path common among all
* pathspecs.
*/
-char *common_prefix(const char **pathspec)
+char *common_prefix(const struct pathspec *pathspec)
{
unsigned long len = common_prefix_len(pathspec);
- return len ? xmemdupz(*pathspec, len) : NULL;
+ return len ? xmemdupz(pathspec->items[0].match, len) : NULL;
}
-int fill_directory(struct dir_struct *dir, const char **pathspec)
+int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec)
{
size_t len;
len = common_prefix_len(pathspec);
/* Read the directory and prune it */
- read_directory(dir, pathspec ? *pathspec : "", len, pathspec);
+ read_directory(dir, pathspec->nr ? pathspec->_raw[0] : "", len, pathspec);
return len;
}
return 1;
}
-/*
- * Does 'match' match the given name?
- * A match is found if
- *
- * (1) the 'match' string is leading directory of 'name', or
- * (2) the 'match' string is a wildcard and matches 'name', or
- * (3) the 'match' string is exactly the same as 'name'.
- *
- * and the return value tells which case it was.
- *
- * It returns 0 when there is no match.
- */
-static int match_one(const char *match, const char *name, int namelen)
-{
- int matchlen;
-
- /* If the match was just the prefix, we matched */
- if (!*match)
- return MATCHED_RECURSIVELY;
-
- if (ignore_case) {
- for (;;) {
- unsigned char c1 = tolower(*match);
- unsigned char c2 = tolower(*name);
- if (c1 == '\0' || is_glob_special(c1))
- break;
- if (c1 != c2)
- return 0;
- match++;
- name++;
- namelen--;
- }
- } else {
- for (;;) {
- unsigned char c1 = *match;
- unsigned char c2 = *name;
- if (c1 == '\0' || is_glob_special(c1))
- break;
- if (c1 != c2)
- return 0;
- match++;
- name++;
- namelen--;
- }
- }
-
-
- /*
- * If we don't match the matchstring exactly,
- * we need to match by fnmatch
- */
- matchlen = strlen(match);
- if (strncmp_icase(match, name, matchlen))
- return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0;
-
- if (namelen == matchlen)
- return MATCHED_EXACTLY;
- if (match[matchlen-1] == '/' || name[matchlen] == '/')
- return MATCHED_RECURSIVELY;
- return 0;
-}
-
-/*
- * Given a name and a list of pathspecs, see if the name matches
- * any of the pathspecs. The caller is also interested in seeing
- * all pathspec matches some names it calls this function with
- * (otherwise the user could have mistyped the unmatched pathspec),
- * and a mark is left in seen[] array for pathspec element that
- * actually matched anything.
- */
-int match_pathspec(const char **pathspec, const char *name, int namelen,
- int prefix, char *seen)
-{
- int i, retval = 0;
-
- if (!pathspec)
- return 1;
-
- name += prefix;
- namelen -= prefix;
-
- for (i = 0; pathspec[i] != NULL; i++) {
- int how;
- const char *match = pathspec[i] + prefix;
- if (seen && seen[i] == MATCHED_EXACTLY)
- continue;
- how = match_one(match, name, namelen);
- if (how) {
- if (retval < how)
- retval = how;
- if (seen && seen[i] < how)
- seen[i] = how;
- }
- }
- return retval;
-}
+#define DO_MATCH_EXCLUDE 1
+#define DO_MATCH_DIRECTORY 2
/*
* Does 'match' match the given name?
* It returns 0 when there is no match.
*/
static int match_pathspec_item(const struct pathspec_item *item, int prefix,
- const char *name, int namelen)
+ const char *name, int namelen, unsigned flags)
{
/* name/namelen has prefix cut off by caller */
const char *match = item->match + prefix;
int matchlen = item->len - prefix;
+ /*
+ * The normal call pattern is:
+ * 1. prefix = common_prefix_len(ps);
+ * 2. prune something, or fill_directory
+ * 3. match_pathspec()
+ *
+ * 'prefix' at #1 may be shorter than the command's prefix and
+ * it's ok for #2 to match extra files. Those extras will be
+ * trimmed at #3.
+ *
+ * Suppose the pathspec is 'foo' and '../bar' running from
+ * subdir 'xyz'. The common prefix at #1 will be empty, thanks
+ * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The
+ * user does not want XYZ/foo, only the "foo" part should be
+ * case-insensitive. We need to filter out XYZ/foo here. In
+ * other words, we do not trust the caller on comparing the
+ * prefix part when :(icase) is involved. We do exact
+ * comparison ourselves.
+ *
+ * Normally the caller (common_prefix_len() in fact) does
+ * _exact_ matching on name[-prefix+1..-1] and we do not need
+ * to check that part. Be defensive and check it anyway, in
+ * case common_prefix_len is changed, or a new caller is
+ * introduced that does not use common_prefix_len.
+ *
+ * If the penalty turns out too high when prefix is really
+ * long, maybe change it to
+ * strncmp(match, name, item->prefix - prefix)
+ */
+ if (item->prefix && (item->magic & PATHSPEC_ICASE) &&
+ strncmp(item->match, name - prefix, item->prefix))
+ return 0;
+
/* If the match was just the prefix, we matched */
if (!*match)
return MATCHED_RECURSIVELY;
- if (matchlen <= namelen && !strncmp(match, name, matchlen)) {
+ if (matchlen <= namelen && !ps_strncmp(item, match, name, matchlen)) {
if (matchlen == namelen)
return MATCHED_EXACTLY;
if (match[matchlen-1] == '/' || name[matchlen] == '/')
return MATCHED_RECURSIVELY;
- }
+ } else if ((flags & DO_MATCH_DIRECTORY) &&
+ match[matchlen - 1] == '/' &&
+ namelen == matchlen - 1 &&
+ !ps_strncmp(item, match, name, namelen))
+ return MATCHED_EXACTLY;
- if (item->use_wildcard && !fnmatch(match, name, 0))
+ if (item->nowildcard_len < item->len &&
+ !git_fnmatch(item, match, name,
+ item->nowildcard_len - prefix))
return MATCHED_FNMATCH;
return 0;
}
/*
- * Given a name and a list of pathspecs, see if the name matches
- * any of the pathspecs. The caller is also interested in seeing
- * all pathspec matches some names it calls this function with
- * (otherwise the user could have mistyped the unmatched pathspec),
- * and a mark is left in seen[] array for pathspec element that
- * actually matched anything.
+ * Given a name and a list of pathspecs, returns the nature of the
+ * closest (i.e. most specific) match of the name to any of the
+ * pathspecs.
+ *
+ * The caller typically calls this multiple times with the same
+ * pathspec and seen[] array but with different name/namelen
+ * (e.g. entries from the index) and is interested in seeing if and
+ * how each pathspec matches all the names it calls this function
+ * with. A mark is left in the seen[] array for each pathspec element
+ * indicating the closest type of match that element achieved, so if
+ * seen[n] remains zero after multiple invocations, that means the nth
+ * pathspec did not match any names, which could indicate that the
+ * user mistyped the nth pathspec.
*/
-int match_pathspec_depth(const struct pathspec *ps,
- const char *name, int namelen,
- int prefix, char *seen)
+static int do_match_pathspec(const struct pathspec *ps,
+ const char *name, int namelen,
+ int prefix, char *seen,
+ unsigned flags)
{
- int i, retval = 0;
+ int i, retval = 0, exclude = flags & DO_MATCH_EXCLUDE;
+
+ GUARD_PATHSPEC(ps,
+ PATHSPEC_FROMTOP |
+ PATHSPEC_MAXDEPTH |
+ PATHSPEC_LITERAL |
+ PATHSPEC_GLOB |
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
if (!ps->nr) {
- if (!ps->recursive || ps->max_depth == -1)
+ if (!ps->recursive ||
+ !(ps->magic & PATHSPEC_MAXDEPTH) ||
+ ps->max_depth == -1)
return MATCHED_RECURSIVELY;
if (within_depth(name, namelen, 0, ps->max_depth))
for (i = ps->nr - 1; i >= 0; i--) {
int how;
+
+ if ((!exclude && ps->items[i].magic & PATHSPEC_EXCLUDE) ||
+ ( exclude && !(ps->items[i].magic & PATHSPEC_EXCLUDE)))
+ continue;
+
if (seen && seen[i] == MATCHED_EXACTLY)
continue;
- how = match_pathspec_item(ps->items+i, prefix, name, namelen);
- if (ps->recursive && ps->max_depth != -1 &&
+ /*
+ * Make exclude patterns optional and never report
+ * "pathspec ':(exclude)foo' matches no files"
+ */
+ if (seen && ps->items[i].magic & PATHSPEC_EXCLUDE)
+ seen[i] = MATCHED_FNMATCH;
+ how = match_pathspec_item(ps->items+i, prefix, name,
+ namelen, flags);
+ if (ps->recursive &&
+ (ps->magic & PATHSPEC_MAXDEPTH) &&
+ ps->max_depth != -1 &&
how && how != MATCHED_FNMATCH) {
int len = ps->items[i].len;
if (name[len] == '/')
return retval;
}
+int match_pathspec(const struct pathspec *ps,
+ const char *name, int namelen,
+ int prefix, char *seen, int is_dir)
+{
+ int positive, negative;
+ unsigned flags = is_dir ? DO_MATCH_DIRECTORY : 0;
+ positive = do_match_pathspec(ps, name, namelen,
+ prefix, seen, flags);
+ if (!(ps->magic & PATHSPEC_EXCLUDE) || !positive)
+ return positive;
+ negative = do_match_pathspec(ps, name, namelen,
+ prefix, seen,
+ flags | DO_MATCH_EXCLUDE);
+ return negative ? 0 : positive;
+}
+
+int report_path_error(const char *ps_matched,
+ const struct pathspec *pathspec,
+ const char *prefix)
+{
+ /*
+ * Make sure all pathspec matched; otherwise it is an error.
+ */
+ int num, errors = 0;
+ for (num = 0; num < pathspec->nr; num++) {
+ int other, found_dup;
+
+ if (ps_matched[num])
+ continue;
+ /*
+ * The caller might have fed identical pathspec
+ * twice. Do not barf on such a mistake.
+ * FIXME: parse_pathspec should have eliminated
+ * duplicate pathspec.
+ */
+ for (found_dup = other = 0;
+ !found_dup && other < pathspec->nr;
+ other++) {
+ if (other == num || !ps_matched[other])
+ continue;
+ if (!strcmp(pathspec->items[other].original,
+ pathspec->items[num].original))
+ /*
+ * Ok, we have a match already.
+ */
+ found_dup = 1;
+ }
+ if (found_dup)
+ continue;
+
+ error("pathspec '%s' did not match any file(s) known to git.",
+ pathspec->items[num].original);
+ errors++;
+ }
+ return errors;
+}
+
/*
* Return the length of the "simple" part of a path match limiter.
*/
-static int simple_length(const char *match)
+int simple_length(const char *match)
{
int len = -1;
}
}
-static int no_wildcard(const char *string)
+int no_wildcard(const char *string)
{
return string[simple_length(string)] == '\0';
}
+void parse_exclude_pattern(const char **pattern,
+ int *patternlen,
+ int *flags,
+ int *nowildcardlen)
+{
+ const char *p = *pattern;
+ size_t i, len;
+
+ *flags = 0;
+ if (*p == '!') {
+ *flags |= EXC_FLAG_NEGATIVE;
+ p++;
+ }
+ len = strlen(p);
+ if (len && p[len - 1] == '/') {
+ len--;
+ *flags |= EXC_FLAG_MUSTBEDIR;
+ }
+ for (i = 0; i < len; i++) {
+ if (p[i] == '/')
+ break;
+ }
+ if (i == len)
+ *flags |= EXC_FLAG_NODIR;
+ *nowildcardlen = simple_length(p);
+ /*
+ * we should have excluded the trailing slash from 'p' too,
+ * but that's one more allocation. Instead just make sure
+ * nowildcardlen does not exceed real patternlen
+ */
+ if (*nowildcardlen > len)
+ *nowildcardlen = len;
+ if (*p == '*' && no_wildcard(p + 1))
+ *flags |= EXC_FLAG_ENDSWITH;
+ *pattern = p;
+ *patternlen = len;
+}
+
void add_exclude(const char *string, const char *base,
- int baselen, struct exclude_list *which)
+ int baselen, struct exclude_list *el, int srcpos)
{
struct exclude *x;
- size_t len;
- int to_exclude = 1;
- int flags = 0;
+ int patternlen;
+ int flags;
+ int nowildcardlen;
- if (*string == '!') {
- to_exclude = 0;
- string++;
- }
- len = strlen(string);
- if (len && string[len - 1] == '/') {
+ parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen);
+ if (flags & EXC_FLAG_MUSTBEDIR) {
char *s;
- x = xmalloc(sizeof(*x) + len);
+ x = xmalloc(sizeof(*x) + patternlen + 1);
s = (char *)(x+1);
- memcpy(s, string, len - 1);
- s[len - 1] = '\0';
- string = s;
+ memcpy(s, string, patternlen);
+ s[patternlen] = '\0';
x->pattern = s;
- flags = EXC_FLAG_MUSTBEDIR;
} else {
x = xmalloc(sizeof(*x));
x->pattern = string;
}
- x->to_exclude = to_exclude;
- x->patternlen = strlen(string);
+ x->patternlen = patternlen;
+ x->nowildcardlen = nowildcardlen;
x->base = base;
x->baselen = baselen;
x->flags = flags;
- if (!strchr(string, '/'))
- x->flags |= EXC_FLAG_NODIR;
- x->nowildcardlen = simple_length(string);
- if (*string == '*' && no_wildcard(string+1))
- x->flags |= EXC_FLAG_ENDSWITH;
- ALLOC_GROW(which->excludes, which->nr + 1, which->alloc);
- which->excludes[which->nr++] = x;
+ x->srcpos = srcpos;
+ ALLOC_GROW(el->excludes, el->nr + 1, el->alloc);
+ el->excludes[el->nr++] = x;
+ x->el = el;
}
-static void *read_skip_worktree_file_from_index(const char *path, size_t *size)
+static void *read_skip_worktree_file_from_index(const char *path, size_t *size,
+ struct sha1_stat *sha1_stat)
{
int pos, len;
unsigned long sz;
enum object_type type;
void *data;
- struct index_state *istate = &the_index;
len = strlen(path);
- pos = index_name_pos(istate, path, len);
+ pos = cache_name_pos(path, len);
if (pos < 0)
return NULL;
- if (!ce_skip_worktree(istate->cache[pos]))
+ if (!ce_skip_worktree(active_cache[pos]))
return NULL;
- data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz);
+ data = read_sha1_file(active_cache[pos]->sha1, &type, &sz);
if (!data || type != OBJ_BLOB) {
free(data);
return NULL;
}
*size = xsize_t(sz);
+ if (sha1_stat) {
+ memset(&sha1_stat->stat, 0, sizeof(sha1_stat->stat));
+ hashcpy(sha1_stat->sha1, active_cache[pos]->sha1);
+ }
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;
for (i = 0; i < el->nr; i++)
free(el->excludes[i]);
free(el->excludes);
+ free(el->filebuf);
el->nr = 0;
el->excludes = NULL;
+ el->filebuf = NULL;
}
-int add_excludes_from_file_to_list(const char *fname,
- const char *base,
- int baselen,
- char **buf_p,
- struct exclude_list *which,
- int check_index)
+static void trim_trailing_spaces(char *buf)
+{
+ char *p, *last_space = NULL;
+
+ for (p = buf; *p; p++)
+ switch (*p) {
+ case ' ':
+ if (!last_space)
+ last_space = p;
+ break;
+ case '\\':
+ p++;
+ if (!*p)
+ return;
+ /* fallthrough */
+ default:
+ last_space = NULL;
+ }
+
+ if (last_space)
+ *last_space = '\0';
+}
+
+/*
+ * Given a subdirectory name and "dir" of the current directory,
+ * search the subdir in "dir" and return it, or create a new one if it
+ * does not exist in "dir".
+ *
+ * If "name" has the trailing slash, it'll be excluded in the search.
+ */
+static struct untracked_cache_dir *lookup_untracked(struct untracked_cache *uc,
+ struct untracked_cache_dir *dir,
+ const char *name, int len)
+{
+ int first, last;
+ struct untracked_cache_dir *d;
+ if (!dir)
+ return NULL;
+ if (len && name[len - 1] == '/')
+ len--;
+ first = 0;
+ last = dir->dirs_nr;
+ while (last > first) {
+ int cmp, next = (last + first) >> 1;
+ d = dir->dirs[next];
+ cmp = strncmp(name, d->name, len);
+ if (!cmp && strlen(d->name) > len)
+ cmp = -1;
+ if (!cmp)
+ return d;
+ if (cmp < 0) {
+ last = next;
+ continue;
+ }
+ first = next+1;
+ }
+
+ uc->dir_created++;
+ d = xmalloc(sizeof(*d) + len + 1);
+ memset(d, 0, sizeof(*d));
+ memcpy(d->name, name, len);
+ d->name[len] = '\0';
+
+ ALLOC_GROW(dir->dirs, dir->dirs_nr + 1, dir->dirs_alloc);
+ memmove(dir->dirs + first + 1, dir->dirs + first,
+ (dir->dirs_nr - first) * sizeof(*dir->dirs));
+ dir->dirs_nr++;
+ dir->dirs[first] = d;
+ return d;
+}
+
+static void do_invalidate_gitignore(struct untracked_cache_dir *dir)
+{
+ int i;
+ dir->valid = 0;
+ dir->untracked_nr = 0;
+ for (i = 0; i < dir->dirs_nr; i++)
+ do_invalidate_gitignore(dir->dirs[i]);
+}
+
+static void invalidate_gitignore(struct untracked_cache *uc,
+ struct untracked_cache_dir *dir)
+{
+ uc->gitignore_invalidated++;
+ do_invalidate_gitignore(dir);
+}
+
+static void invalidate_directory(struct untracked_cache *uc,
+ struct untracked_cache_dir *dir)
+{
+ int i;
+ uc->dir_invalidated++;
+ dir->valid = 0;
+ dir->untracked_nr = 0;
+ for (i = 0; i < dir->dirs_nr; i++)
+ dir->dirs[i]->recurse = 0;
+}
+
+/*
+ * Given a file with name "fname", read it (either from disk, or from
+ * the index if "check_index" is non-zero), parse it and store the
+ * exclude rules in "el".
+ *
+ * If "ss" is not NULL, compute SHA-1 of the exclude file and fill
+ * stat data from disk (only valid if add_excludes returns zero). If
+ * ss_valid is non-zero, "ss" must contain good value as input.
+ */
+static int add_excludes(const char *fname, const char *base, int baselen,
+ struct exclude_list *el, int check_index,
+ struct sha1_stat *sha1_stat)
{
struct stat st;
- int fd, i;
+ int fd, i, lineno = 1;
size_t size = 0;
char *buf, *entry;
if (0 <= fd)
close(fd);
if (!check_index ||
- (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL)
+ (buf = read_skip_worktree_file_from_index(fname, &size, sha1_stat)) == NULL)
return -1;
if (size == 0) {
free(buf);
buf = xrealloc(buf, size+1);
buf[size++] = '\n';
}
- }
- else {
+ } else {
size = xsize_t(st.st_size);
if (size == 0) {
+ if (sha1_stat) {
+ fill_stat_data(&sha1_stat->stat, &st);
+ hashcpy(sha1_stat->sha1, EMPTY_BLOB_SHA1_BIN);
+ sha1_stat->valid = 1;
+ }
close(fd);
return 0;
}
}
buf[size++] = '\n';
close(fd);
+ if (sha1_stat) {
+ int pos;
+ if (sha1_stat->valid &&
+ !match_stat_data_racy(&the_index, &sha1_stat->stat, &st))
+ ; /* no content change, ss->sha1 still good */
+ else if (check_index &&
+ (pos = cache_name_pos(fname, strlen(fname))) >= 0 &&
+ !ce_stage(active_cache[pos]) &&
+ ce_uptodate(active_cache[pos]) &&
+ !would_convert_to_git(fname))
+ hashcpy(sha1_stat->sha1, active_cache[pos]->sha1);
+ else
+ hash_sha1_file(buf, size, "blob", sha1_stat->sha1);
+ fill_stat_data(&sha1_stat->stat, &st);
+ sha1_stat->valid = 1;
+ }
}
- if (buf_p)
- *buf_p = buf;
+ el->filebuf = buf;
+
+ if (skip_utf8_bom(&buf, size))
+ size -= buf - el->filebuf;
+
entry = buf;
+
for (i = 0; i < size; i++) {
if (buf[i] == '\n') {
if (entry != buf + i && entry[0] != '#') {
buf[i - (i && buf[i-1] == '\r')] = 0;
- add_exclude(entry, base, baselen, which);
+ trim_trailing_spaces(entry);
+ add_exclude(entry, base, baselen, el, lineno);
}
+ lineno++;
entry = buf + i + 1;
}
}
return 0;
}
-void add_excludes_from_file(struct dir_struct *dir, const char *fname)
+int add_excludes_from_file_to_list(const char *fname, const char *base,
+ int baselen, struct exclude_list *el,
+ int check_index)
{
- if (add_excludes_from_file_to_list(fname, "", 0, NULL,
- &dir->exclude_list[EXC_FILE], 0) < 0)
- die("cannot use %s as an exclude file", fname);
+ return add_excludes(fname, base, baselen, el, check_index, NULL);
}
-static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
+struct exclude_list *add_exclude_list(struct dir_struct *dir,
+ int group_type, const char *src)
{
struct exclude_list *el;
- struct exclude_stack *stk = NULL;
- int current;
+ struct exclude_list_group *group;
+
+ group = &dir->exclude_list_group[group_type];
+ ALLOC_GROW(group->el, group->nr + 1, group->alloc);
+ el = &group->el[group->nr++];
+ memset(el, 0, sizeof(*el));
+ el->src = src;
+ return el;
+}
- if ((!dir->exclude_per_dir) ||
- (baselen + strlen(dir->exclude_per_dir) >= PATH_MAX))
- return; /* too long a path -- ignore */
+/*
+ * Used to set up core.excludesfile and .git/info/exclude lists.
+ */
+static void add_excludes_from_file_1(struct dir_struct *dir, const char *fname,
+ struct sha1_stat *sha1_stat)
+{
+ struct exclude_list *el;
+ /*
+ * catch setup_standard_excludes() that's called before
+ * dir->untracked is assigned. That function behaves
+ * differently when dir->untracked is non-NULL.
+ */
+ if (!dir->untracked)
+ dir->unmanaged_exclude_files++;
+ el = add_exclude_list(dir, EXC_FILE, fname);
+ if (add_excludes(fname, "", 0, el, 0, sha1_stat) < 0)
+ die("cannot use %s as an exclude file", fname);
+}
- /* Pop the ones 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 &&
- !strncmp(dir->basebuf, base, stk->baselen))
- break;
- dir->exclude_stack = stk->prev;
- while (stk->exclude_ix < el->nr)
- free(el->excludes[--el->nr]);
- free(stk->filebuf);
- free(stk);
+void add_excludes_from_file(struct dir_struct *dir, const char *fname)
+{
+ dir->unmanaged_exclude_files++; /* see validate_untracked_cache() */
+ add_excludes_from_file_1(dir, fname, NULL);
+}
+
+int match_basename(const char *basename, int basenamelen,
+ const char *pattern, int prefix, int patternlen,
+ int flags)
+{
+ if (prefix == patternlen) {
+ if (patternlen == basenamelen &&
+ !strncmp_icase(pattern, basename, basenamelen))
+ return 1;
+ } else if (flags & EXC_FLAG_ENDSWITH) {
+ /* "*literal" matching against "fooliteral" */
+ if (patternlen - 1 <= basenamelen &&
+ !strncmp_icase(pattern + 1,
+ basename + basenamelen - (patternlen - 1),
+ patternlen - 1))
+ return 1;
+ } else {
+ if (fnmatch_icase_mem(pattern, patternlen,
+ basename, basenamelen,
+ 0) == 0)
+ return 1;
+ }
+ return 0;
+}
+
+int match_pathname(const char *pathname, int pathlen,
+ const char *base, int baselen,
+ const char *pattern, int prefix, int patternlen,
+ int flags)
+{
+ const char *name;
+ int namelen;
+
+ /*
+ * match with FNM_PATHNAME; the pattern has base implicitly
+ * in front of it.
+ */
+ if (*pattern == '/') {
+ pattern++;
+ patternlen--;
+ prefix--;
}
- /* Read from the parent directories and push them down. */
- current = stk ? stk->baselen : -1;
- while (current < baselen) {
- struct exclude_stack *stk = xcalloc(1, sizeof(*stk));
- const char *cp;
+ /*
+ * baselen does not count the trailing slash. base[] may or
+ * may not end with a trailing slash though.
+ */
+ if (pathlen < baselen + 1 ||
+ (baselen && pathname[baselen] != '/') ||
+ strncmp_icase(pathname, base, baselen))
+ return 0;
- if (current < 0) {
- cp = base;
- current = 0;
- }
- else {
- cp = strchr(base + current + 1, '/');
- if (!cp)
- die("oops in prep_exclude");
- cp++;
- }
- stk->prev = dir->exclude_stack;
- stk->baselen = cp - base;
- stk->exclude_ix = el->nr;
- memcpy(dir->basebuf + current, base + current,
- stk->baselen - current);
- strcpy(dir->basebuf + stk->baselen, dir->exclude_per_dir);
- add_excludes_from_file_to_list(dir->basebuf,
- dir->basebuf, stk->baselen,
- &stk->filebuf, el, 1);
- dir->exclude_stack = stk;
- current = stk->baselen;
+ namelen = baselen ? pathlen - baselen - 1 : pathlen;
+ name = pathname + pathlen - namelen;
+
+ if (prefix) {
+ /*
+ * if the non-wildcard part is longer than the
+ * remaining pathname, surely it cannot match.
+ */
+ if (prefix > namelen)
+ return 0;
+
+ if (strncmp_icase(pattern, name, prefix))
+ return 0;
+ pattern += prefix;
+ patternlen -= prefix;
+ name += prefix;
+ namelen -= prefix;
+
+ /*
+ * If the whole pattern did not have a wildcard,
+ * then our prefix match is all we need; we
+ * do not need to call fnmatch at all.
+ */
+ if (!patternlen && !namelen)
+ return 1;
}
- dir->basebuf[baselen] = '\0';
+
+ return fnmatch_icase_mem(pattern, patternlen,
+ name, namelen,
+ WM_PATHNAME) == 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 *name, *exclude = x->pattern;
- int to_exclude = x->to_exclude;
- int namelen, prefix = x->nowildcardlen;
+ const char *exclude = x->pattern;
+ int prefix = x->nowildcardlen;
if (x->flags & EXC_FLAG_MUSTBEDIR) {
if (*dtype == DT_UNKNOWN)
}
if (x->flags & EXC_FLAG_NODIR) {
- /* match basename */
- if (prefix == x->patternlen) {
- if (!strcmp_icase(exclude, basename))
- return to_exclude;
- } else if (x->flags & EXC_FLAG_ENDSWITH) {
- if (x->patternlen - 1 <= pathlen &&
- !strcmp_icase(exclude + 1, pathname + pathlen - x->patternlen + 1))
- return to_exclude;
- } else {
- if (fnmatch_icase(exclude, basename, 0) == 0)
- return to_exclude;
- }
+ if (match_basename(basename,
+ pathlen - (basename - pathname),
+ exclude, prefix, x->patternlen,
+ x->flags))
+ return x;
continue;
}
- /* match with FNM_PATHNAME:
- * exclude has base (baselen long) implicitly in front of it.
- */
- if (*exclude == '/') {
- exclude++;
- prefix--;
- }
-
- if (pathlen < x->baselen ||
- (x->baselen && pathname[x->baselen-1] != '/') ||
- strncmp_icase(pathname, x->base, x->baselen))
- continue;
-
- namelen = x->baselen ? pathlen - x->baselen : pathlen;
- name = pathname + pathlen - namelen;
-
- /* if the non-wildcard part is longer than the
- remaining pathname, surely it cannot match */
- if (prefix > namelen)
- continue;
-
- if (prefix) {
- if (strncmp_icase(exclude, name, prefix))
- continue;
- exclude += prefix;
- name += prefix;
- namelen -= prefix;
- }
-
- if (!namelen || !fnmatch_icase(exclude, name, FNM_PATHNAME))
- return to_exclude;
+ assert(x->baselen == 0 || x->base[x->baselen - 1] == '/');
+ if (match_pathname(pathname, pathlen,
+ x->base, x->baselen ? x->baselen - 1 : 0,
+ exclude, prefix, x->patternlen, x->flags))
+ return x;
}
- return -1; /* undecided */
+ return NULL; /* undecided */
}
-static int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p)
-{
- int pathlen = strlen(pathname);
- int st;
- 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;
- }
- }
- return 0;
-}
-
-void path_exclude_check_init(struct path_exclude_check *check,
- struct dir_struct *dir)
+/*
+ * 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)
{
- check->dir = dir;
- strbuf_init(&check->path, 256);
+ 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 */
}
-void path_exclude_check_clear(struct path_exclude_check *check)
+static struct exclude *last_exclude_matching_from_lists(struct dir_struct *dir,
+ const char *pathname, int pathlen, const char *basename,
+ int *dtype_p)
{
- strbuf_release(&check->path);
+ int i, j;
+ struct exclude_list_group *group;
+ struct exclude *exclude;
+ for (i = EXC_CMDL; i <= EXC_FILE; i++) {
+ group = &dir->exclude_list_group[i];
+ for (j = group->nr - 1; j >= 0; j--) {
+ exclude = last_exclude_matching_from_list(
+ pathname, pathlen, basename, dtype_p,
+ &group->el[j]);
+ if (exclude)
+ return exclude;
+ }
+ }
+ return NULL;
}
/*
- * 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.
- *
- * 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.
+ * Loads the per-directory exclude list for the substring of base
+ * which has a char length of baselen.
*/
-int path_excluded(struct path_exclude_check *check,
- const char *name, int namelen, int *dtype)
+static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
{
- int i;
- struct strbuf *path = &check->path;
+ struct exclude_list_group *group;
+ struct exclude_list *el;
+ struct exclude_stack *stk = NULL;
+ struct untracked_cache_dir *untracked;
+ int current;
+
+ group = &dir->exclude_list_group[EXC_DIRS];
/*
- * 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.
+ * Pop the exclude lists from the EXCL_DIRS exclude_list_group
+ * which originate from directories not in the prefix of the
+ * path being checked.
*/
- if (namelen < 0)
- namelen = strlen(name);
+ while ((stk = dir->exclude_stack) != NULL) {
+ if (stk->baselen <= baselen &&
+ !strncmp(dir->basebuf.buf, base, stk->baselen))
+ break;
+ el = &group->el[dir->exclude_stack->exclude_ix];
+ dir->exclude_stack = stk->prev;
+ dir->exclude = NULL;
+ free((char *)el->src); /* see strbuf_detach() below */
+ clear_exclude_list(el);
+ free(stk);
+ group->nr--;
+ }
- if (path->len &&
- path->len <= namelen &&
- !memcmp(name, path->buf, path->len) &&
- (!name[path->len] || name[path->len] == '/'))
- return 1;
+ /* Skip traversing into sub directories if the parent is excluded */
+ if (dir->exclude)
+ return;
+
+ /*
+ * Lazy initialization. All call sites currently just
+ * memset(dir, 0, sizeof(*dir)) before use. Changing all of
+ * them seems lots of work for little benefit.
+ */
+ if (!dir->basebuf.buf)
+ strbuf_init(&dir->basebuf, PATH_MAX);
+
+ /* Read from the parent directories and push them down. */
+ current = stk ? stk->baselen : -1;
+ strbuf_setlen(&dir->basebuf, current < 0 ? 0 : current);
+ if (dir->untracked)
+ untracked = stk ? stk->ucd : dir->untracked->root;
+ else
+ untracked = NULL;
+
+ while (current < baselen) {
+ const char *cp;
+ struct sha1_stat sha1_stat;
+
+ stk = xcalloc(1, sizeof(*stk));
+ if (current < 0) {
+ cp = base;
+ current = 0;
+ } else {
+ cp = strchr(base + current + 1, '/');
+ if (!cp)
+ die("oops in prep_exclude");
+ cp++;
+ untracked =
+ lookup_untracked(dir->untracked, untracked,
+ base + current,
+ cp - base - current);
+ }
+ stk->prev = dir->exclude_stack;
+ stk->baselen = cp - base;
+ stk->exclude_ix = group->nr;
+ stk->ucd = untracked;
+ el = add_exclude_list(dir, EXC_DIRS, NULL);
+ strbuf_add(&dir->basebuf, base + current, stk->baselen - current);
+ assert(stk->baselen == dir->basebuf.len);
+
+ /* Abort if the directory is excluded */
+ if (stk->baselen) {
+ int dt = DT_DIR;
+ dir->basebuf.buf[stk->baselen - 1] = 0;
+ dir->exclude = last_exclude_matching_from_lists(dir,
+ dir->basebuf.buf, stk->baselen - 1,
+ dir->basebuf.buf + current, &dt);
+ dir->basebuf.buf[stk->baselen - 1] = '/';
+ if (dir->exclude &&
+ dir->exclude->flags & EXC_FLAG_NEGATIVE)
+ dir->exclude = NULL;
+ if (dir->exclude) {
+ dir->exclude_stack = stk;
+ return;
+ }
+ }
- strbuf_setlen(path, 0);
- for (i = 0; name[i]; i++) {
- int ch = name[i];
+ /* Try to read per-directory file */
+ hashclr(sha1_stat.sha1);
+ sha1_stat.valid = 0;
+ if (dir->exclude_per_dir &&
+ /*
+ * If we know that no files have been added in
+ * this directory (i.e. valid_cached_dir() has
+ * been executed and set untracked->valid) ..
+ */
+ (!untracked || !untracked->valid ||
+ /*
+ * .. and .gitignore does not exist before
+ * (i.e. null exclude_sha1 and skip_worktree is
+ * not set). Then we can skip loading .gitignore,
+ * which would result in ENOENT anyway.
+ * skip_worktree is taken care in read_directory()
+ */
+ !is_null_sha1(untracked->exclude_sha1))) {
+ /*
+ * dir->basebuf gets reused by the traversal, but we
+ * need fname to remain unchanged to ensure the src
+ * member of each struct exclude correctly
+ * back-references its source file. Other invocations
+ * of add_exclude_list provide stable strings, so we
+ * strbuf_detach() and free() here in the caller.
+ */
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addbuf(&sb, &dir->basebuf);
+ strbuf_addstr(&sb, dir->exclude_per_dir);
+ el->src = strbuf_detach(&sb, NULL);
+ add_excludes(el->src, el->src, stk->baselen, el, 1,
+ untracked ? &sha1_stat : NULL);
+ }
+ /*
+ * NEEDSWORK: when untracked cache is enabled, prep_exclude()
+ * will first be called in valid_cached_dir() then maybe many
+ * times more in last_exclude_matching(). When the cache is
+ * used, last_exclude_matching() will not be called and
+ * reading .gitignore content will be a waste.
+ *
+ * So when it's called by valid_cached_dir() and we can get
+ * .gitignore SHA-1 from the index (i.e. .gitignore is not
+ * modified on work tree), we could delay reading the
+ * .gitignore content until we absolutely need it in
+ * last_exclude_matching(). Be careful about ignore rule
+ * order, though, if you do that.
+ */
+ if (untracked &&
+ hashcmp(sha1_stat.sha1, untracked->exclude_sha1)) {
+ invalidate_gitignore(dir->untracked, untracked);
+ hashcpy(untracked->exclude_sha1, sha1_stat.sha1);
+ }
+ dir->exclude_stack = stk;
+ current = stk->baselen;
+ }
+ strbuf_setlen(&dir->basebuf, baselen);
+}
+
+/*
+ * 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.
+ */
+struct exclude *last_exclude_matching(struct dir_struct *dir,
+ const char *pathname,
+ int *dtype_p)
+{
+ int pathlen = strlen(pathname);
+ const char *basename = strrchr(pathname, '/');
+ basename = (basename) ? basename+1 : pathname;
+
+ prep_exclude(dir, pathname, basename-pathname);
- if (ch == '/') {
- int dt = DT_DIR;
- if (excluded(check->dir, path->buf, &dt))
- return 1;
- }
- strbuf_addch(path, ch);
- }
+ if (dir->exclude)
+ return dir->exclude;
- /* An entry in the index; cannot be a directory with subentries */
- strbuf_setlen(path, 0);
+ return last_exclude_matching_from_lists(dir, pathname, pathlen,
+ basename, dtype_p);
+}
- return excluded(check->dir, name, dtype);
+/*
+ * 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.
+ */
+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;
}
static struct dir_entry *dir_entry_new(const char *pathname, int len)
static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
{
- if (cache_name_exists(pathname, len, ignore_case))
+ if (cache_file_exists(pathname, len, ignore_case))
return NULL;
ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc);
};
/*
- * Do not use the alphabetically stored index to look up
+ * Do not use the alphabetically sorted index to look up
* the directory name; instead, use the case insensitive
- * name hash.
+ * directory hash.
*/
static enum exist_status directory_exists_in_index_icase(const char *dirname, int len)
{
- struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case);
+ const struct cache_entry *ce = cache_dir_exists(dirname, len);
unsigned char endchar;
if (!ce)
if (pos < 0)
pos = -pos-1;
while (pos < active_nr) {
- struct cache_entry *ce = active_cache[pos++];
+ const struct cache_entry *ce = active_cache[pos++];
unsigned char endchar;
if (strncmp(ce->name, dirname, len))
*
* (a) if "show_other_directories" is true, we show it as
* just a directory, unless "hide_empty_directories" is
- * also true and the directory is empty, in which case
- * we just ignore it entirely.
+ * also true, in which case we need to check if it contains any
+ * untracked and / or ignored files.
* (b) if it looks like a git directory, and we don't have
* 'no_gitlinks' set we treat it as a gitlink, and show it
* as a directory.
* (c) otherwise, we recurse into it.
*/
-enum directory_treatment {
- show_directory,
- ignore_directory,
- recurse_into_directory
-};
-
-static enum directory_treatment treat_directory(struct dir_struct *dir,
- const char *dirname, int len,
+static enum path_treatment treat_directory(struct dir_struct *dir,
+ struct untracked_cache_dir *untracked,
+ const char *dirname, int len, int exclude,
const struct path_simplify *simplify)
{
/* The "len-1" is to strip the final '/' */
switch (directory_exists_in_index(dirname, len-1)) {
case index_directory:
- return recurse_into_directory;
+ return path_recurse;
case index_gitdir:
- if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
- return ignore_directory;
- return show_directory;
+ return path_none;
case index_nonexistent:
if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
if (!(dir->flags & DIR_NO_GITLINKS)) {
unsigned char sha1[20];
if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0)
- return show_directory;
+ return path_untracked;
}
- return recurse_into_directory;
+ return path_recurse;
}
/* This is the "show_other_directories" case */
+
if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES))
- return show_directory;
- if (!read_directory_recursive(dir, dirname, len, 1, simplify))
- return ignore_directory;
- return show_directory;
+ return exclude ? path_excluded : path_untracked;
+
+ untracked = lookup_untracked(dir->untracked, untracked, dirname, len);
+ return read_directory_recursive(dir, dirname, len,
+ untracked, 1, simplify);
}
/*
static int get_index_dtype(const char *path, int len)
{
int pos;
- struct cache_entry *ce;
+ const struct cache_entry *ce;
- ce = cache_name_exists(path, len, 0);
+ ce = cache_file_exists(path, len, 0);
if (ce) {
if (!ce_uptodate(ce))
return DT_UNKNOWN;
return dtype;
}
-enum path_treatment {
- path_ignored,
- path_handled,
- path_recurse
-};
-
static enum path_treatment treat_one_path(struct dir_struct *dir,
+ struct untracked_cache_dir *untracked,
struct strbuf *path,
const struct path_simplify *simplify,
int dtype, struct dirent *de)
{
- int exclude = 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);
+ int exclude;
+ int has_path_in_index = !!cache_file_exists(path->buf, path->len, ignore_case);
+
+ if (dtype == DT_UNKNOWN)
+ dtype = get_dtype(de, path->buf, path->len);
+
+ /* Always exclude indexed files */
+ if (dtype != DT_DIR && has_path_in_index)
+ return path_none;
/*
- * Excluded? If we don't explicitly want to show
- * ignored files, ignore it
+ * When we are looking at a directory P in the working tree,
+ * there are three cases:
+ *
+ * (1) P exists in the index. Everything inside the directory P in
+ * the working tree needs to go when P is checked out from the
+ * index.
+ *
+ * (2) P does not exist in the index, but there is P/Q in the index.
+ * We know P will stay a directory when we check out the contents
+ * of the index, but we do not know yet if there is a directory
+ * P/Q in the working tree to be killed, so we need to recurse.
+ *
+ * (3) P does not exist in the index, and there is no P/Q in the index
+ * to require P to be a directory, either. Only in this case, we
+ * know that everything inside P will not be killed without
+ * recursing.
*/
- if (exclude && !(dir->flags & DIR_SHOW_IGNORED))
- return path_ignored;
+ if ((dir->flags & DIR_COLLECT_KILLED_ONLY) &&
+ (dtype == DT_DIR) &&
+ !has_path_in_index &&
+ (directory_exists_in_index(path->buf, path->len) == index_nonexistent))
+ return path_none;
- if (dtype == DT_UNKNOWN)
- dtype = get_dtype(de, path->buf, path->len);
+ exclude = is_excluded(dir, path->buf, &dtype);
/*
- * Do we want to see just the ignored files?
- * We still need to recurse into directories,
- * even if we don't ignore them, since the
- * directory may contain files that we do..
+ * Excluded? If we don't explicitly want to show
+ * ignored files, ignore it
*/
- if (!exclude && (dir->flags & DIR_SHOW_IGNORED)) {
- if (dtype != DT_DIR)
- return path_ignored;
- }
+ if (exclude && !(dir->flags & (DIR_SHOW_IGNORED|DIR_SHOW_IGNORED_TOO)))
+ return path_excluded;
switch (dtype) {
default:
- return path_ignored;
+ return path_none;
case DT_DIR:
strbuf_addch(path, '/');
- switch (treat_directory(dir, path->buf, path->len, simplify)) {
- case show_directory:
- if (exclude != !!(dir->flags
- & DIR_SHOW_IGNORED))
- return path_ignored;
- break;
- case recurse_into_directory:
- return path_recurse;
- case ignore_directory:
- return path_ignored;
- }
- break;
+ return treat_directory(dir, untracked, path->buf, path->len, exclude,
+ simplify);
case DT_REG:
case DT_LNK:
- break;
+ return exclude ? path_excluded : path_untracked;
}
- return path_handled;
+}
+
+static enum path_treatment treat_path_fast(struct dir_struct *dir,
+ struct untracked_cache_dir *untracked,
+ struct cached_dir *cdir,
+ struct strbuf *path,
+ int baselen,
+ const struct path_simplify *simplify)
+{
+ strbuf_setlen(path, baselen);
+ if (!cdir->ucd) {
+ strbuf_addstr(path, cdir->file);
+ return path_untracked;
+ }
+ strbuf_addstr(path, cdir->ucd->name);
+ /* treat_one_path() does this before it calls treat_directory() */
+ if (path->buf[path->len - 1] != '/')
+ strbuf_addch(path, '/');
+ if (cdir->ucd->check_only)
+ /*
+ * check_only is set as a result of treat_directory() getting
+ * to its bottom. Verify again the same set of directories
+ * with check_only set.
+ */
+ return read_directory_recursive(dir, path->buf, path->len,
+ cdir->ucd, 1, simplify);
+ /*
+ * We get path_recurse in the first run when
+ * directory_exists_in_index() returns index_nonexistent. We
+ * are sure that new changes in the index does not impact the
+ * outcome. Return now.
+ */
+ return path_recurse;
}
static enum path_treatment treat_path(struct dir_struct *dir,
- struct dirent *de,
+ struct untracked_cache_dir *untracked,
+ struct cached_dir *cdir,
struct strbuf *path,
int baselen,
const struct path_simplify *simplify)
{
int dtype;
+ struct dirent *de = cdir->de;
+ if (!de)
+ return treat_path_fast(dir, untracked, cdir, path,
+ baselen, simplify);
if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git"))
- return path_ignored;
+ return path_none;
strbuf_setlen(path, baselen);
strbuf_addstr(path, de->d_name);
if (simplify_away(path->buf, path->len, simplify))
- return path_ignored;
+ return path_none;
dtype = DTYPE(de);
- return treat_one_path(dir, path, simplify, dtype, de);
+ return treat_one_path(dir, untracked, path, simplify, dtype, de);
+}
+
+static void add_untracked(struct untracked_cache_dir *dir, const char *name)
+{
+ if (!dir)
+ return;
+ ALLOC_GROW(dir->untracked, dir->untracked_nr + 1,
+ dir->untracked_alloc);
+ dir->untracked[dir->untracked_nr++] = xstrdup(name);
+}
+
+static int valid_cached_dir(struct dir_struct *dir,
+ struct untracked_cache_dir *untracked,
+ struct strbuf *path,
+ int check_only)
+{
+ struct stat st;
+
+ if (!untracked)
+ return 0;
+
+ if (stat(path->len ? path->buf : ".", &st)) {
+ invalidate_directory(dir->untracked, untracked);
+ memset(&untracked->stat_data, 0, sizeof(untracked->stat_data));
+ return 0;
+ }
+ if (!untracked->valid ||
+ match_stat_data_racy(&the_index, &untracked->stat_data, &st)) {
+ if (untracked->valid)
+ invalidate_directory(dir->untracked, untracked);
+ fill_stat_data(&untracked->stat_data, &st);
+ return 0;
+ }
+
+ if (untracked->check_only != !!check_only) {
+ invalidate_directory(dir->untracked, untracked);
+ return 0;
+ }
+
+ /*
+ * prep_exclude will be called eventually on this directory,
+ * but it's called much later in last_exclude_matching(). We
+ * need it now to determine the validity of the cache for this
+ * path. The next calls will be nearly no-op, the way
+ * prep_exclude() is designed.
+ */
+ if (path->len && path->buf[path->len - 1] != '/') {
+ strbuf_addch(path, '/');
+ prep_exclude(dir, path->buf, path->len);
+ strbuf_setlen(path, path->len - 1);
+ } else
+ prep_exclude(dir, path->buf, path->len);
+
+ /* hopefully prep_exclude() haven't invalidated this entry... */
+ return untracked->valid;
+}
+
+static int open_cached_dir(struct cached_dir *cdir,
+ struct dir_struct *dir,
+ struct untracked_cache_dir *untracked,
+ struct strbuf *path,
+ int check_only)
+{
+ memset(cdir, 0, sizeof(*cdir));
+ cdir->untracked = untracked;
+ if (valid_cached_dir(dir, untracked, path, check_only))
+ return 0;
+ cdir->fdir = opendir(path->len ? path->buf : ".");
+ if (dir->untracked)
+ dir->untracked->dir_opened++;
+ if (!cdir->fdir)
+ return -1;
+ return 0;
+}
+
+static int read_cached_dir(struct cached_dir *cdir)
+{
+ if (cdir->fdir) {
+ cdir->de = readdir(cdir->fdir);
+ if (!cdir->de)
+ return -1;
+ return 0;
+ }
+ while (cdir->nr_dirs < cdir->untracked->dirs_nr) {
+ struct untracked_cache_dir *d = cdir->untracked->dirs[cdir->nr_dirs];
+ if (!d->recurse) {
+ cdir->nr_dirs++;
+ continue;
+ }
+ cdir->ucd = d;
+ cdir->nr_dirs++;
+ return 0;
+ }
+ cdir->ucd = NULL;
+ if (cdir->nr_files < cdir->untracked->untracked_nr) {
+ struct untracked_cache_dir *d = cdir->untracked;
+ cdir->file = d->untracked[cdir->nr_files++];
+ return 0;
+ }
+ return -1;
+}
+
+static void close_cached_dir(struct cached_dir *cdir)
+{
+ if (cdir->fdir)
+ closedir(cdir->fdir);
+ /*
+ * We have gone through this directory and found no untracked
+ * entries. Mark it valid.
+ */
+ if (cdir->untracked) {
+ cdir->untracked->valid = 1;
+ cdir->untracked->recurse = 1;
+ }
}
/*
*
* Also, we ignore the name ".git" (even if it is not a directory).
* That likely will not change.
+ *
+ * Returns the most significant path_treatment value encountered in the scan.
*/
-static int read_directory_recursive(struct dir_struct *dir,
+static enum path_treatment read_directory_recursive(struct dir_struct *dir,
const char *base, int baselen,
- int check_only,
+ struct untracked_cache_dir *untracked, int check_only,
const struct path_simplify *simplify)
{
- DIR *fdir;
- int contents = 0;
- struct dirent *de;
+ struct cached_dir cdir;
+ enum path_treatment state, subdir_state, dir_state = path_none;
struct strbuf path = STRBUF_INIT;
strbuf_add(&path, base, baselen);
- fdir = opendir(path.len ? path.buf : ".");
- if (!fdir)
+ if (open_cached_dir(&cdir, dir, untracked, &path, check_only))
goto out;
- while ((de = readdir(fdir)) != NULL) {
- switch (treat_path(dir, de, &path, baselen, simplify)) {
- case path_recurse:
- contents += read_directory_recursive(dir, path.buf,
- path.len, 0,
- simplify);
- continue;
- case path_ignored:
+ if (untracked)
+ untracked->check_only = !!check_only;
+
+ while (!read_cached_dir(&cdir)) {
+ /* check how the file or directory should be treated */
+ state = treat_path(dir, untracked, &cdir, &path, baselen, simplify);
+
+ if (state > dir_state)
+ dir_state = state;
+
+ /* recurse into subdir if instructed by treat_path */
+ if (state == path_recurse) {
+ struct untracked_cache_dir *ud;
+ ud = lookup_untracked(dir->untracked, untracked,
+ path.buf + baselen,
+ path.len - baselen);
+ subdir_state =
+ read_directory_recursive(dir, path.buf, path.len,
+ ud, check_only, simplify);
+ if (subdir_state > dir_state)
+ dir_state = subdir_state;
+ }
+
+ if (check_only) {
+ /* abort early if maximum state has been reached */
+ if (dir_state == path_untracked) {
+ if (cdir.fdir)
+ add_untracked(untracked, path.buf + baselen);
+ break;
+ }
+ /* skip the dir_add_* part */
continue;
- case path_handled:
- break;
}
- contents++;
- if (check_only)
+
+ /* add the path to the appropriate result list */
+ switch (state) {
+ case path_excluded:
+ if (dir->flags & DIR_SHOW_IGNORED)
+ dir_add_name(dir, path.buf, path.len);
+ else if ((dir->flags & DIR_SHOW_IGNORED_TOO) ||
+ ((dir->flags & DIR_COLLECT_IGNORED) &&
+ exclude_matches_pathspec(path.buf, path.len,
+ simplify)))
+ dir_add_ignored(dir, path.buf, path.len);
+ break;
+
+ case path_untracked:
+ if (dir->flags & DIR_SHOW_IGNORED)
+ break;
+ dir_add_name(dir, path.buf, path.len);
+ if (cdir.fdir)
+ add_untracked(untracked, path.buf + baselen);
+ break;
+
+ default:
break;
- dir_add_name(dir, path.buf, path.len);
+ }
}
- closedir(fdir);
+ close_cached_dir(&cdir);
out:
strbuf_release(&path);
- return contents;
+ return dir_state;
}
static int cmp_name(const void *p1, const void *p2)
const struct dir_entry *e1 = *(const struct dir_entry **)p1;
const struct dir_entry *e2 = *(const struct dir_entry **)p2;
- return cache_name_compare(e1->name, e1->len,
- e2->name, e2->len);
+ return name_compare(e1->name, e1->len, e2->name, e2->len);
}
static struct path_simplify *create_simplify(const char **pathspec)
for (nr = 0 ; ; nr++) {
const char *match;
- if (nr >= alloc) {
- alloc = alloc_nr(alloc);
- simplify = xrealloc(simplify, alloc * sizeof(*simplify));
- }
+ ALLOC_GROW(simplify, nr + 1, alloc);
match = *pathspec++;
if (!match)
break;
struct strbuf sb = STRBUF_INIT;
int baselen, rc = 0;
const char *cp;
+ int old_flags = dir->flags;
while (len && path[len - 1] == '/')
len--;
if (!len)
return 1;
baselen = 0;
+ dir->flags &= ~DIR_SHOW_OTHER_DIRECTORIES;
while (1) {
cp = path + baselen + !!baselen;
cp = memchr(cp, '/', path + len - cp);
break;
if (simplify_away(sb.buf, sb.len, simplify))
break;
- if (treat_one_path(dir, &sb, simplify,
- DT_DIR, NULL) == path_ignored)
+ if (treat_one_path(dir, NULL, &sb, simplify,
+ DT_DIR, NULL) == path_none)
break; /* do not recurse into it */
if (len <= baselen) {
rc = 1;
}
}
strbuf_release(&sb);
+ dir->flags = old_flags;
return rc;
}
-int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec)
+static const char *get_ident_string(void)
+{
+ static struct strbuf sb = STRBUF_INIT;
+ struct utsname uts;
+
+ if (sb.len)
+ return sb.buf;
+ if (uname(&uts) < 0)
+ die_errno(_("failed to get kernel name and information"));
+ strbuf_addf(&sb, "Location %s, system %s %s %s", get_git_work_tree(),
+ uts.sysname, uts.release, uts.version);
+ return sb.buf;
+}
+
+static int ident_in_untracked(const struct untracked_cache *uc)
+{
+ const char *end = uc->ident.buf + uc->ident.len;
+ const char *p = uc->ident.buf;
+
+ for (p = uc->ident.buf; p < end; p += strlen(p) + 1)
+ if (!strcmp(p, get_ident_string()))
+ return 1;
+ return 0;
+}
+
+void add_untracked_ident(struct untracked_cache *uc)
+{
+ if (ident_in_untracked(uc))
+ return;
+ strbuf_addstr(&uc->ident, get_ident_string());
+ /* this strbuf contains a list of strings, save NUL too */
+ strbuf_addch(&uc->ident, 0);
+}
+
+static struct untracked_cache_dir *validate_untracked_cache(struct dir_struct *dir,
+ int base_len,
+ const struct pathspec *pathspec)
+{
+ struct untracked_cache_dir *root;
+ int i;
+
+ if (!dir->untracked || getenv("GIT_DISABLE_UNTRACKED_CACHE"))
+ return NULL;
+
+ /*
+ * We only support $GIT_DIR/info/exclude and core.excludesfile
+ * as the global ignore rule files. Any other additions
+ * (e.g. from command line) invalidate the cache. This
+ * condition also catches running setup_standard_excludes()
+ * before setting dir->untracked!
+ */
+ if (dir->unmanaged_exclude_files)
+ return NULL;
+
+ /*
+ * Optimize for the main use case only: whole-tree git
+ * status. More work involved in treat_leading_path() if we
+ * use cache on just a subset of the worktree. pathspec
+ * support could make the matter even worse.
+ */
+ if (base_len || (pathspec && pathspec->nr))
+ return NULL;
+
+ /* Different set of flags may produce different results */
+ if (dir->flags != dir->untracked->dir_flags ||
+ /*
+ * See treat_directory(), case index_nonexistent. Without
+ * this flag, we may need to also cache .git file content
+ * for the resolve_gitlink_ref() call, which we don't.
+ */
+ !(dir->flags & DIR_SHOW_OTHER_DIRECTORIES) ||
+ /* We don't support collecting ignore files */
+ (dir->flags & (DIR_SHOW_IGNORED | DIR_SHOW_IGNORED_TOO |
+ DIR_COLLECT_IGNORED)))
+ return NULL;
+
+ /*
+ * If we use .gitignore in the cache and now you change it to
+ * .gitexclude, everything will go wrong.
+ */
+ if (dir->exclude_per_dir != dir->untracked->exclude_per_dir &&
+ strcmp(dir->exclude_per_dir, dir->untracked->exclude_per_dir))
+ return NULL;
+
+ /*
+ * EXC_CMDL is not considered in the cache. If people set it,
+ * skip the cache.
+ */
+ if (dir->exclude_list_group[EXC_CMDL].nr)
+ return NULL;
+
+ /*
+ * An optimization in prep_exclude() does not play well with
+ * CE_SKIP_WORKTREE. It's a rare case anyway, if a single
+ * entry has that bit set, disable the whole untracked cache.
+ */
+ for (i = 0; i < active_nr; i++)
+ if (ce_skip_worktree(active_cache[i]))
+ return NULL;
+
+ if (!ident_in_untracked(dir->untracked)) {
+ warning(_("Untracked cache is disabled on this system."));
+ return NULL;
+ }
+
+ if (!dir->untracked->root) {
+ const int len = sizeof(*dir->untracked->root);
+ dir->untracked->root = xmalloc(len);
+ memset(dir->untracked->root, 0, len);
+ }
+
+ /* Validate $GIT_DIR/info/exclude and core.excludesfile */
+ root = dir->untracked->root;
+ if (hashcmp(dir->ss_info_exclude.sha1,
+ dir->untracked->ss_info_exclude.sha1)) {
+ invalidate_gitignore(dir->untracked, root);
+ dir->untracked->ss_info_exclude = dir->ss_info_exclude;
+ }
+ if (hashcmp(dir->ss_excludes_file.sha1,
+ dir->untracked->ss_excludes_file.sha1)) {
+ invalidate_gitignore(dir->untracked, root);
+ dir->untracked->ss_excludes_file = dir->ss_excludes_file;
+ }
+
+ /* Make sure this directory is not dropped out at saving phase */
+ root->recurse = 1;
+ return root;
+}
+
+int read_directory(struct dir_struct *dir, const char *path, int len, const struct pathspec *pathspec)
{
struct path_simplify *simplify;
+ struct untracked_cache_dir *untracked;
+
+ /*
+ * Check out create_simplify()
+ */
+ if (pathspec)
+ GUARD_PATHSPEC(pathspec,
+ PATHSPEC_FROMTOP |
+ PATHSPEC_MAXDEPTH |
+ PATHSPEC_LITERAL |
+ PATHSPEC_GLOB |
+ PATHSPEC_ICASE |
+ PATHSPEC_EXCLUDE);
if (has_symlink_leading_path(path, len))
return dir->nr;
- simplify = create_simplify(pathspec);
+ /*
+ * exclude patterns are treated like positive ones in
+ * create_simplify. Usually exclude patterns should be a
+ * subset of positive ones, which has no impacts on
+ * create_simplify().
+ */
+ simplify = create_simplify(pathspec ? pathspec->_raw : NULL);
+ untracked = validate_untracked_cache(dir, len, pathspec);
+ if (!untracked)
+ /*
+ * make sure untracked cache code path is disabled,
+ * e.g. prep_exclude()
+ */
+ dir->untracked = NULL;
if (!len || treat_leading_path(dir, path, len, simplify))
- read_directory_recursive(dir, path, len, 0, simplify);
+ read_directory_recursive(dir, path, len, untracked, 0, simplify);
free_simplify(simplify);
qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name);
qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name);
+ if (dir->untracked) {
+ static struct trace_key trace_untracked_stats = TRACE_KEY_INIT(UNTRACKED_STATS);
+ trace_printf_key(&trace_untracked_stats,
+ "node creation: %u\n"
+ "gitignore invalidation: %u\n"
+ "directory invalidation: %u\n"
+ "opendir: %u\n",
+ dir->untracked->dir_created,
+ dir->untracked->gitignore_invalidated,
+ dir->untracked->dir_invalidated,
+ dir->untracked->dir_opened);
+ if (dir->untracked == the_index.untracked &&
+ (dir->untracked->dir_opened ||
+ dir->untracked->gitignore_invalidated ||
+ dir->untracked->dir_invalidated))
+ the_index.cache_changed |= UNTRACKED_CHANGED;
+ if (dir->untracked != the_index.untracked) {
+ free(dir->untracked);
+ dir->untracked = NULL;
+ }
+ }
return dir->nr;
}
int is_inside_dir(const char *dir)
{
- char cwd[PATH_MAX];
+ char *cwd;
+ int rc;
+
if (!dir)
return 0;
- if (!getcwd(cwd, sizeof(cwd)))
- die_errno("can't find the current directory");
- return dir_inside_of(cwd, dir) >= 0;
+
+ cwd = xgetcwd();
+ rc = (dir_inside_of(cwd, dir) >= 0);
+ free(cwd);
+ return rc;
}
int is_empty_dir(const char *path)
flag &= ~REMOVE_DIR_KEEP_TOPLEVEL;
dir = opendir(path->buf);
if (!dir) {
- /* an empty dir could be removed even if it is unreadble */
- if (!keep_toplevel)
+ if (errno == ENOENT)
+ return keep_toplevel ? -1 : 0;
+ else if (errno == EACCES && !keep_toplevel)
+ /*
+ * An empty dir could be removable even if it
+ * is unreadable:
+ */
return rmdir(path->buf);
else
return -1;
strbuf_setlen(path, len);
strbuf_addstr(path, e->d_name);
- if (lstat(path->buf, &st))
- ; /* fall thru */
- else if (S_ISDIR(st.st_mode)) {
+ if (lstat(path->buf, &st)) {
+ if (errno == ENOENT)
+ /*
+ * file disappeared, which is what we
+ * wanted anyway
+ */
+ continue;
+ /* fall thru */
+ } else if (S_ISDIR(st.st_mode)) {
if (!remove_dir_recurse(path, flag, &kept_down))
continue; /* happy */
- } else if (!only_empty && !unlink(path->buf))
+ } else if (!only_empty &&
+ (!unlink(path->buf) || errno == ENOENT)) {
continue; /* happy, too */
+ }
/* path too long, stat fails, or non-directory still exists */
ret = -1;
strbuf_setlen(path, original_len);
if (!ret && !keep_toplevel && !kept_down)
- ret = rmdir(path->buf);
+ ret = (!rmdir(path->buf) || errno == ENOENT) ? 0 : -1;
else if (kept_up)
/*
* report the uplevel that it is not an error that we
void setup_standard_excludes(struct dir_struct *dir)
{
const char *path;
- char *xdg_path;
dir->exclude_per_dir = ".gitignore";
+
+ /* core.excludefile defaulting to $XDG_HOME/git/ignore */
+ if (!excludes_file)
+ excludes_file = xdg_config_home("ignore");
+ if (excludes_file && !access_or_warn(excludes_file, R_OK, 0))
+ add_excludes_from_file_1(dir, excludes_file,
+ dir->untracked ? &dir->ss_excludes_file : NULL);
+
+ /* per repository user preference */
path = git_path("info/exclude");
- if (!excludes_file) {
- home_config_paths(NULL, &xdg_path, "ignore");
- excludes_file = xdg_path;
- }
- if (!access_or_warn(path, R_OK))
- add_excludes_from_file(dir, path);
- if (excludes_file && !access_or_warn(excludes_file, R_OK))
- add_excludes_from_file(dir, excludes_file);
+ if (!access_or_warn(path, R_OK, 0))
+ add_excludes_from_file_1(dir, path,
+ dir->untracked ? &dir->ss_info_exclude : NULL);
}
int remove_path(const char *name)
{
char *slash;
- if (unlink(name) && errno != ENOENT)
+ if (unlink(name) && errno != ENOENT && errno != ENOTDIR)
return -1;
slash = strrchr(name, '/');
return 0;
}
-static int pathspec_item_cmp(const void *a_, const void *b_)
+/*
+ * Frees memory within dir which was allocated for exclude lists and
+ * the exclude_stack. Does not free dir itself.
+ */
+void clear_directory(struct dir_struct *dir)
+{
+ int i, j;
+ struct exclude_list_group *group;
+ struct exclude_list *el;
+ struct exclude_stack *stk;
+
+ for (i = EXC_CMDL; i <= EXC_FILE; i++) {
+ group = &dir->exclude_list_group[i];
+ for (j = 0; j < group->nr; j++) {
+ el = &group->el[j];
+ if (i == EXC_DIRS)
+ free((char *)el->src);
+ clear_exclude_list(el);
+ }
+ free(group->el);
+ }
+
+ stk = dir->exclude_stack;
+ while (stk) {
+ struct exclude_stack *prev = stk->prev;
+ free(stk);
+ stk = prev;
+ }
+ strbuf_release(&dir->basebuf);
+}
+
+struct ondisk_untracked_cache {
+ struct stat_data info_exclude_stat;
+ struct stat_data excludes_file_stat;
+ uint32_t dir_flags;
+ unsigned char info_exclude_sha1[20];
+ unsigned char excludes_file_sha1[20];
+ char exclude_per_dir[FLEX_ARRAY];
+};
+
+#define ouc_size(len) (offsetof(struct ondisk_untracked_cache, exclude_per_dir) + len + 1)
+
+struct write_data {
+ int index; /* number of written untracked_cache_dir */
+ struct ewah_bitmap *check_only; /* from untracked_cache_dir */
+ struct ewah_bitmap *valid; /* from untracked_cache_dir */
+ struct ewah_bitmap *sha1_valid; /* set if exclude_sha1 is not null */
+ struct strbuf out;
+ struct strbuf sb_stat;
+ struct strbuf sb_sha1;
+};
+
+static void stat_data_to_disk(struct stat_data *to, const struct stat_data *from)
+{
+ to->sd_ctime.sec = htonl(from->sd_ctime.sec);
+ to->sd_ctime.nsec = htonl(from->sd_ctime.nsec);
+ to->sd_mtime.sec = htonl(from->sd_mtime.sec);
+ to->sd_mtime.nsec = htonl(from->sd_mtime.nsec);
+ to->sd_dev = htonl(from->sd_dev);
+ to->sd_ino = htonl(from->sd_ino);
+ to->sd_uid = htonl(from->sd_uid);
+ to->sd_gid = htonl(from->sd_gid);
+ to->sd_size = htonl(from->sd_size);
+}
+
+static void write_one_dir(struct untracked_cache_dir *untracked,
+ struct write_data *wd)
+{
+ struct stat_data stat_data;
+ struct strbuf *out = &wd->out;
+ unsigned char intbuf[16];
+ unsigned int intlen, value;
+ int i = wd->index++;
+
+ /*
+ * untracked_nr should be reset whenever valid is clear, but
+ * for safety..
+ */
+ if (!untracked->valid) {
+ untracked->untracked_nr = 0;
+ untracked->check_only = 0;
+ }
+
+ if (untracked->check_only)
+ ewah_set(wd->check_only, i);
+ if (untracked->valid) {
+ ewah_set(wd->valid, i);
+ stat_data_to_disk(&stat_data, &untracked->stat_data);
+ strbuf_add(&wd->sb_stat, &stat_data, sizeof(stat_data));
+ }
+ if (!is_null_sha1(untracked->exclude_sha1)) {
+ ewah_set(wd->sha1_valid, i);
+ strbuf_add(&wd->sb_sha1, untracked->exclude_sha1, 20);
+ }
+
+ intlen = encode_varint(untracked->untracked_nr, intbuf);
+ strbuf_add(out, intbuf, intlen);
+
+ /* skip non-recurse directories */
+ for (i = 0, value = 0; i < untracked->dirs_nr; i++)
+ if (untracked->dirs[i]->recurse)
+ value++;
+ intlen = encode_varint(value, intbuf);
+ strbuf_add(out, intbuf, intlen);
+
+ strbuf_add(out, untracked->name, strlen(untracked->name) + 1);
+
+ for (i = 0; i < untracked->untracked_nr; i++)
+ strbuf_add(out, untracked->untracked[i],
+ strlen(untracked->untracked[i]) + 1);
+
+ for (i = 0; i < untracked->dirs_nr; i++)
+ if (untracked->dirs[i]->recurse)
+ write_one_dir(untracked->dirs[i], wd);
+}
+
+void write_untracked_extension(struct strbuf *out, struct untracked_cache *untracked)
{
- struct pathspec_item *a, *b;
+ struct ondisk_untracked_cache *ouc;
+ struct write_data wd;
+ unsigned char varbuf[16];
+ int len = 0, varint_len;
+ if (untracked->exclude_per_dir)
+ len = strlen(untracked->exclude_per_dir);
+ ouc = xmalloc(sizeof(*ouc) + len + 1);
+ stat_data_to_disk(&ouc->info_exclude_stat, &untracked->ss_info_exclude.stat);
+ stat_data_to_disk(&ouc->excludes_file_stat, &untracked->ss_excludes_file.stat);
+ hashcpy(ouc->info_exclude_sha1, untracked->ss_info_exclude.sha1);
+ hashcpy(ouc->excludes_file_sha1, untracked->ss_excludes_file.sha1);
+ ouc->dir_flags = htonl(untracked->dir_flags);
+ memcpy(ouc->exclude_per_dir, untracked->exclude_per_dir, len + 1);
+
+ varint_len = encode_varint(untracked->ident.len, varbuf);
+ strbuf_add(out, varbuf, varint_len);
+ strbuf_add(out, untracked->ident.buf, untracked->ident.len);
+
+ strbuf_add(out, ouc, ouc_size(len));
+ free(ouc);
+ ouc = NULL;
+
+ if (!untracked->root) {
+ varint_len = encode_varint(0, varbuf);
+ strbuf_add(out, varbuf, varint_len);
+ return;
+ }
- a = (struct pathspec_item *)a_;
- b = (struct pathspec_item *)b_;
- return strcmp(a->match, b->match);
+ wd.index = 0;
+ wd.check_only = ewah_new();
+ wd.valid = ewah_new();
+ wd.sha1_valid = ewah_new();
+ strbuf_init(&wd.out, 1024);
+ strbuf_init(&wd.sb_stat, 1024);
+ strbuf_init(&wd.sb_sha1, 1024);
+ write_one_dir(untracked->root, &wd);
+
+ varint_len = encode_varint(wd.index, varbuf);
+ strbuf_add(out, varbuf, varint_len);
+ strbuf_addbuf(out, &wd.out);
+ ewah_serialize_strbuf(wd.valid, out);
+ ewah_serialize_strbuf(wd.check_only, out);
+ ewah_serialize_strbuf(wd.sha1_valid, out);
+ strbuf_addbuf(out, &wd.sb_stat);
+ strbuf_addbuf(out, &wd.sb_sha1);
+ strbuf_addch(out, '\0'); /* safe guard for string lists */
+
+ ewah_free(wd.valid);
+ ewah_free(wd.check_only);
+ ewah_free(wd.sha1_valid);
+ strbuf_release(&wd.out);
+ strbuf_release(&wd.sb_stat);
+ strbuf_release(&wd.sb_sha1);
}
-int init_pathspec(struct pathspec *pathspec, const char **paths)
+static void free_untracked(struct untracked_cache_dir *ucd)
{
- const char **p = paths;
int i;
+ if (!ucd)
+ return;
+ for (i = 0; i < ucd->dirs_nr; i++)
+ free_untracked(ucd->dirs[i]);
+ for (i = 0; i < ucd->untracked_nr; i++)
+ free(ucd->untracked[i]);
+ free(ucd->untracked);
+ free(ucd->dirs);
+ free(ucd);
+}
- memset(pathspec, 0, sizeof(*pathspec));
- if (!p)
- return 0;
- while (*p)
- p++;
- pathspec->raw = paths;
- pathspec->nr = p - paths;
- if (!pathspec->nr)
- return 0;
+void free_untracked_cache(struct untracked_cache *uc)
+{
+ if (uc)
+ free_untracked(uc->root);
+ free(uc);
+}
+
+struct read_data {
+ int index;
+ struct untracked_cache_dir **ucd;
+ struct ewah_bitmap *check_only;
+ struct ewah_bitmap *valid;
+ struct ewah_bitmap *sha1_valid;
+ const unsigned char *data;
+ const unsigned char *end;
+};
+
+static void stat_data_from_disk(struct stat_data *to, const struct stat_data *from)
+{
+ to->sd_ctime.sec = get_be32(&from->sd_ctime.sec);
+ to->sd_ctime.nsec = get_be32(&from->sd_ctime.nsec);
+ to->sd_mtime.sec = get_be32(&from->sd_mtime.sec);
+ to->sd_mtime.nsec = get_be32(&from->sd_mtime.nsec);
+ to->sd_dev = get_be32(&from->sd_dev);
+ to->sd_ino = get_be32(&from->sd_ino);
+ to->sd_uid = get_be32(&from->sd_uid);
+ to->sd_gid = get_be32(&from->sd_gid);
+ to->sd_size = get_be32(&from->sd_size);
+}
+
+static int read_one_dir(struct untracked_cache_dir **untracked_,
+ struct read_data *rd)
+{
+ struct untracked_cache_dir ud, *untracked;
+ const unsigned char *next, *data = rd->data, *end = rd->end;
+ unsigned int value;
+ int i, len;
+
+ memset(&ud, 0, sizeof(ud));
- pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr);
- for (i = 0; i < pathspec->nr; i++) {
- struct pathspec_item *item = pathspec->items+i;
- const char *path = paths[i];
+ next = data;
+ value = decode_varint(&next);
+ if (next > end)
+ return -1;
+ ud.recurse = 1;
+ ud.untracked_alloc = value;
+ ud.untracked_nr = value;
+ if (ud.untracked_nr)
+ ud.untracked = xmalloc(sizeof(*ud.untracked) * ud.untracked_nr);
+ data = next;
+
+ next = data;
+ ud.dirs_alloc = ud.dirs_nr = decode_varint(&next);
+ if (next > end)
+ return -1;
+ ud.dirs = xmalloc(sizeof(*ud.dirs) * ud.dirs_nr);
+ data = next;
- item->match = path;
- item->len = strlen(path);
- item->use_wildcard = !no_wildcard(path);
- if (item->use_wildcard)
- pathspec->has_wildcard = 1;
+ len = strlen((const char *)data);
+ next = data + len + 1;
+ if (next > rd->end)
+ return -1;
+ *untracked_ = untracked = xmalloc(sizeof(*untracked) + len);
+ memcpy(untracked, &ud, sizeof(ud));
+ memcpy(untracked->name, data, len + 1);
+ data = next;
+
+ for (i = 0; i < untracked->untracked_nr; i++) {
+ len = strlen((const char *)data);
+ next = data + len + 1;
+ if (next > rd->end)
+ return -1;
+ untracked->untracked[i] = xstrdup((const char*)data);
+ data = next;
}
- qsort(pathspec->items, pathspec->nr,
- sizeof(struct pathspec_item), pathspec_item_cmp);
+ rd->ucd[rd->index++] = untracked;
+ rd->data = data;
+ for (i = 0; i < untracked->dirs_nr; i++) {
+ len = read_one_dir(untracked->dirs + i, rd);
+ if (len < 0)
+ return -1;
+ }
return 0;
}
-void free_pathspec(struct pathspec *pathspec)
+static void set_check_only(size_t pos, void *cb)
+{
+ struct read_data *rd = cb;
+ struct untracked_cache_dir *ud = rd->ucd[pos];
+ ud->check_only = 1;
+}
+
+static void read_stat(size_t pos, void *cb)
+{
+ struct read_data *rd = cb;
+ struct untracked_cache_dir *ud = rd->ucd[pos];
+ if (rd->data + sizeof(struct stat_data) > rd->end) {
+ rd->data = rd->end + 1;
+ return;
+ }
+ stat_data_from_disk(&ud->stat_data, (struct stat_data *)rd->data);
+ rd->data += sizeof(struct stat_data);
+ ud->valid = 1;
+}
+
+static void read_sha1(size_t pos, void *cb)
+{
+ struct read_data *rd = cb;
+ struct untracked_cache_dir *ud = rd->ucd[pos];
+ if (rd->data + 20 > rd->end) {
+ rd->data = rd->end + 1;
+ return;
+ }
+ hashcpy(ud->exclude_sha1, rd->data);
+ rd->data += 20;
+}
+
+static void load_sha1_stat(struct sha1_stat *sha1_stat,
+ const struct stat_data *stat,
+ const unsigned char *sha1)
+{
+ stat_data_from_disk(&sha1_stat->stat, stat);
+ hashcpy(sha1_stat->sha1, sha1);
+ sha1_stat->valid = 1;
+}
+
+struct untracked_cache *read_untracked_extension(const void *data, unsigned long sz)
+{
+ const struct ondisk_untracked_cache *ouc;
+ struct untracked_cache *uc;
+ struct read_data rd;
+ const unsigned char *next = data, *end = (const unsigned char *)data + sz;
+ const char *ident;
+ int ident_len, len;
+
+ if (sz <= 1 || end[-1] != '\0')
+ return NULL;
+ end--;
+
+ ident_len = decode_varint(&next);
+ if (next + ident_len > end)
+ return NULL;
+ ident = (const char *)next;
+ next += ident_len;
+
+ ouc = (const struct ondisk_untracked_cache *)next;
+ if (next + ouc_size(0) > end)
+ return NULL;
+
+ uc = xcalloc(1, sizeof(*uc));
+ strbuf_init(&uc->ident, ident_len);
+ strbuf_add(&uc->ident, ident, ident_len);
+ load_sha1_stat(&uc->ss_info_exclude, &ouc->info_exclude_stat,
+ ouc->info_exclude_sha1);
+ load_sha1_stat(&uc->ss_excludes_file, &ouc->excludes_file_stat,
+ ouc->excludes_file_sha1);
+ uc->dir_flags = get_be32(&ouc->dir_flags);
+ uc->exclude_per_dir = xstrdup(ouc->exclude_per_dir);
+ /* NUL after exclude_per_dir is covered by sizeof(*ouc) */
+ next += ouc_size(strlen(ouc->exclude_per_dir));
+ if (next >= end)
+ goto done2;
+
+ len = decode_varint(&next);
+ if (next > end || len == 0)
+ goto done2;
+
+ rd.valid = ewah_new();
+ rd.check_only = ewah_new();
+ rd.sha1_valid = ewah_new();
+ rd.data = next;
+ rd.end = end;
+ rd.index = 0;
+ rd.ucd = xmalloc(sizeof(*rd.ucd) * len);
+
+ if (read_one_dir(&uc->root, &rd) || rd.index != len)
+ goto done;
+
+ next = rd.data;
+ len = ewah_read_mmap(rd.valid, next, end - next);
+ if (len < 0)
+ goto done;
+
+ next += len;
+ len = ewah_read_mmap(rd.check_only, next, end - next);
+ if (len < 0)
+ goto done;
+
+ next += len;
+ len = ewah_read_mmap(rd.sha1_valid, next, end - next);
+ if (len < 0)
+ goto done;
+
+ ewah_each_bit(rd.check_only, set_check_only, &rd);
+ rd.data = next + len;
+ ewah_each_bit(rd.valid, read_stat, &rd);
+ ewah_each_bit(rd.sha1_valid, read_sha1, &rd);
+ next = rd.data;
+
+done:
+ free(rd.ucd);
+ ewah_free(rd.valid);
+ ewah_free(rd.check_only);
+ ewah_free(rd.sha1_valid);
+done2:
+ if (next != end) {
+ free_untracked_cache(uc);
+ uc = NULL;
+ }
+ return uc;
+}
+
+void untracked_cache_invalidate_path(struct index_state *istate,
+ const char *path)
+{
+ const char *sep;
+ struct untracked_cache_dir *d;
+ if (!istate->untracked || !istate->untracked->root)
+ return;
+ sep = strrchr(path, '/');
+ if (sep)
+ d = lookup_untracked(istate->untracked,
+ istate->untracked->root,
+ path, sep - path);
+ else
+ d = istate->untracked->root;
+ istate->untracked->dir_invalidated++;
+ d->valid = 0;
+ d->untracked_nr = 0;
+}
+
+void untracked_cache_remove_from_index(struct index_state *istate,
+ const char *path)
+{
+ untracked_cache_invalidate_path(istate, path);
+}
+
+void untracked_cache_add_to_index(struct index_state *istate,
+ const char *path)
{
- free(pathspec->items);
- pathspec->items = NULL;
+ untracked_cache_invalidate_path(istate, path);
}