This source file includes following definitions.
- strcmp_icase
- strncmp_icase
- fnmatch_icase
- git_fnmatch
- fnmatch_icase_mem
- common_prefix_len
- common_prefix
- fill_directory
- within_depth
- match_pathspec_item
- do_match_pathspec
- match_pathspec
- report_path_error
- simple_length
- no_wildcard
- parse_exclude_pattern
- add_exclude
- read_skip_worktree_file_from_index
- clear_exclude_list
- trim_trailing_spaces
- lookup_untracked
- do_invalidate_gitignore
- invalidate_gitignore
- invalidate_directory
- add_excludes
- add_excludes_from_file_to_list
- add_exclude_list
- add_excludes_from_file_1
- add_excludes_from_file
- match_basename
- match_pathname
- last_exclude_matching_from_list
- is_excluded_from_list
- last_exclude_matching_from_lists
- prep_exclude
- last_exclude_matching
- is_excluded
- dir_entry_new
- dir_add_name
- dir_add_ignored
- directory_exists_in_index_icase
- directory_exists_in_index
- treat_directory
- simplify_away
- exclude_matches_pathspec
- get_index_dtype
- get_dtype
- treat_one_path
- treat_path_fast
- treat_path
- add_untracked
- valid_cached_dir
- open_cached_dir
- read_cached_dir
- close_cached_dir
- read_directory_recursive
- cmp_name
- create_simplify
- free_simplify
- treat_leading_path
- get_ident_string
- ident_in_untracked
- add_untracked_ident
- validate_untracked_cache
- read_directory
- file_exists
- cmp_icase
- dir_inside_of
- is_inside_dir
- is_empty_dir
- remove_dir_recurse
- remove_dir_recursively
- GIT_PATH_FUNC
- remove_path
- clear_directory
- stat_data_to_disk
- write_one_dir
- write_untracked_extension
- free_untracked
- free_untracked_cache
- stat_data_from_disk
- read_one_dir
- set_check_only
- read_stat
- read_sha1
- load_sha1_stat
- read_untracked_extension
- invalidate_one_directory
- invalidate_one_component
- untracked_cache_invalidate_path
- untracked_cache_remove_from_index
- untracked_cache_add_to_index
#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;
};
enum path_treatment {
path_none = 0,
path_recurse,
path_excluded,
path_untracked
};
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 strcmp_icase(const char *a, const char *b)
{
return ignore_case ? strcasecmp(a, b) : strcmp(a, b);
}
int strncmp_icase(const char *a, const char *b, size_t count)
{
return ignore_case ? strncasecmp(a, b, count) : strncmp(a, b, count);
}
int fnmatch_icase(const char *pattern, const char *string, int flags)
{
return wildmatch(pattern, string,
flags | (ignore_case ? WM_CASEFOLD : 0),
NULL);
}
int git_fnmatch(const struct pathspec_item *item,
const char *pattern, const char *string,
int prefix)
{
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
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;
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 (n == 0 || len < max) {
max = len;
if (!max)
break;
}
}
return max;
}
char *common_prefix(const struct pathspec *pathspec)
{
unsigned long len = common_prefix_len(pathspec);
return len ? xmemdupz(pathspec->items[0].match, len) : NULL;
}
int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec)
{
size_t len;
len = common_prefix_len(pathspec);
read_directory(dir, pathspec->nr ? pathspec->_raw[0] : "", len, pathspec);
return len;
}
int within_depth(const char *name, int namelen,
int depth, int max_depth)
{
const char *cp = name, *cpe = name + namelen;
while (cp < cpe) {
if (*cp++ != '/')
continue;
depth++;
if (depth > max_depth)
return 0;
}
return 1;
}
#define DO_MATCH_EXCLUDE 1
#define DO_MATCH_DIRECTORY 2
static int match_pathspec_item(const struct pathspec_item *item, int prefix,
const char *name, int namelen, unsigned flags)
{
const char *match = item->match + prefix;
int matchlen = item->len - prefix;
if (item->prefix && (item->magic & PATHSPEC_ICASE) &&
strncmp(item->match, name - prefix, item->prefix))
return 0;
if (!*match)
return MATCHED_RECURSIVELY;
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->nowildcard_len < item->len &&
!git_fnmatch(item, match, name,
item->nowildcard_len - prefix))
return MATCHED_FNMATCH;
return 0;
}
static int do_match_pathspec(const struct pathspec *ps,
const char *name, int namelen,
int prefix, char *seen,
unsigned flags)
{
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->magic & PATHSPEC_MAXDEPTH) ||
ps->max_depth == -1)
return MATCHED_RECURSIVELY;
if (within_depth(name, namelen, 0, ps->max_depth))
return MATCHED_EXACTLY;
else
return 0;
}
name += prefix;
namelen -= prefix;
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;
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] == '/')
len++;
if (within_depth(name+len, namelen-len, 0, ps->max_depth))
how = MATCHED_EXACTLY;
else
how = 0;
}
if (how) {
if (retval < how)
retval = how;
if (seen && seen[i] < how)
seen[i] = how;
}
}
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)
{
int num, errors = 0;
for (num = 0; num < pathspec->nr; num++) {
int other, found_dup;
if (ps_matched[num])
continue;
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))
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;
}
int simple_length(const char *match)
{
int len = -1;
for (;;) {
unsigned char c = *match++;
len++;
if (c == '\0' || is_glob_special(c))
return len;
}
}
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);
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 *el, int srcpos)
{
struct exclude *x;
int patternlen;
int flags;
int nowildcardlen;
parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen);
if (flags & EXC_FLAG_MUSTBEDIR) {
char *s;
x = xmalloc(sizeof(*x) + patternlen + 1);
s = (char *)(x+1);
memcpy(s, string, patternlen);
s[patternlen] = '\0';
x->pattern = s;
} else {
x = xmalloc(sizeof(*x));
x->pattern = string;
}
x->patternlen = patternlen;
x->nowildcardlen = nowildcardlen;
x->base = base;
x->baselen = baselen;
x->flags = flags;
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,
struct sha1_stat *sha1_stat)
{
int pos, len;
unsigned long sz;
enum object_type type;
void *data;
len = strlen(path);
pos = cache_name_pos(path, len);
if (pos < 0)
return NULL;
if (!ce_skip_worktree(active_cache[pos]))
return NULL;
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 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;
}
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;
default:
last_space = NULL;
}
if (last_space)
*last_space = '\0';
}
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;
}
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, lineno = 1;
size_t size = 0;
char *buf, *entry;
fd = open(fname, O_RDONLY);
if (fd < 0 || fstat(fd, &st) < 0) {
if (errno != ENOENT)
warn_on_inaccessible(fname);
if (0 <= fd)
close(fd);
if (!check_index ||
(buf = read_skip_worktree_file_from_index(fname, &size, sha1_stat)) == NULL)
return -1;
if (size == 0) {
free(buf);
return 0;
}
if (buf[size-1] != '\n') {
buf = xrealloc(buf, size+1);
buf[size++] = '\n';
}
} 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 = xmalloc(size+1);
if (read_in_full(fd, buf, size) != size) {
free(buf);
close(fd);
return -1;
}
buf[size++] = '\n';
close(fd);
if (sha1_stat) {
int pos;
if (sha1_stat->valid &&
!match_stat_data_racy(&the_index, &sha1_stat->stat, &st))
;
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;
}
}
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;
trim_trailing_spaces(entry);
add_exclude(entry, base, baselen, el, lineno);
}
lineno++;
entry = buf + i + 1;
}
}
return 0;
}
int add_excludes_from_file_to_list(const char *fname, const char *base,
int baselen, struct exclude_list *el,
int check_index)
{
return add_excludes(fname, base, baselen, el, check_index, NULL);
}
struct exclude_list *add_exclude_list(struct dir_struct *dir,
int group_type, const char *src)
{
struct exclude_list *el;
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;
}
static void add_excludes_from_file_1(struct dir_struct *dir, const char *fname,
struct sha1_stat *sha1_stat)
{
struct exclude_list *el;
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);
}
void add_excludes_from_file(struct dir_struct *dir, const char *fname)
{
dir->unmanaged_exclude_files++;
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) {
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;
if (*pattern == '/') {
pattern++;
patternlen--;
prefix--;
}
if (pathlen < baselen + 1 ||
(baselen && pathname[baselen] != '/') ||
strncmp_icase(pathname, base, baselen))
return 0;
namelen = baselen ? pathlen - baselen - 1 : pathlen;
name = pathname + pathlen - namelen;
if (prefix) {
if (prefix > namelen)
return 0;
if (strncmp_icase(pattern, name, prefix))
return 0;
pattern += prefix;
patternlen -= prefix;
name += prefix;
namelen -= prefix;
if (!patternlen && !namelen)
return 1;
}
return fnmatch_icase_mem(pattern, patternlen,
name, namelen,
WM_PATHNAME) == 0;
}
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 NULL;
for (i = el->nr - 1; 0 <= i; i--) {
struct exclude *x = el->excludes[i];
const char *exclude = x->pattern;
int prefix = x->nowildcardlen;
if (x->flags & EXC_FLAG_MUSTBEDIR) {
if (*dtype == DT_UNKNOWN)
*dtype = get_dtype(NULL, pathname, pathlen);
if (*dtype != DT_DIR)
continue;
}
if (x->flags & EXC_FLAG_NODIR) {
if (match_basename(basename,
pathlen - (basename - pathname),
exclude, prefix, x->patternlen,
x->flags))
return x;
continue;
}
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 NULL;
}
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;
}
static struct exclude *last_exclude_matching_from_lists(struct dir_struct *dir,
const char *pathname, int pathlen, const char *basename,
int *dtype_p)
{
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;
}
static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
{
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];
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);
clear_exclude_list(el);
free(stk);
group->nr--;
}
if (dir->exclude)
return;
if (!dir->basebuf.buf)
strbuf_init(&dir->basebuf, PATH_MAX);
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);
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;
}
}
hashclr(sha1_stat.sha1);
sha1_stat.valid = 0;
if (dir->exclude_per_dir &&
(!untracked || !untracked->valid ||
!is_null_sha1(untracked->exclude_sha1))) {
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);
}
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);
}
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 (dir->exclude)
return dir->exclude;
return last_exclude_matching_from_lists(dir, pathname, pathlen,
basename, dtype_p);
}
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)
{
struct dir_entry *ent;
ent = xmalloc(sizeof(*ent) + len + 1);
ent->len = len;
memcpy(ent->name, pathname, len);
ent->name[len] = 0;
return ent;
}
static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
{
if (cache_file_exists(pathname, len, ignore_case))
return NULL;
ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc);
return dir->entries[dir->nr++] = dir_entry_new(pathname, len);
}
struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len)
{
if (!cache_name_is_other(pathname, len))
return NULL;
ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc);
return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len);
}
enum exist_status {
index_nonexistent = 0,
index_directory,
index_gitdir
};
static enum exist_status directory_exists_in_index_icase(const char *dirname, int len)
{
struct cache_entry *ce;
if (cache_dir_exists(dirname, len))
return index_directory;
ce = cache_file_exists(dirname, len, ignore_case);
if (ce && S_ISGITLINK(ce->ce_mode))
return index_gitdir;
return index_nonexistent;
}
static enum exist_status directory_exists_in_index(const char *dirname, int len)
{
int pos;
if (ignore_case)
return directory_exists_in_index_icase(dirname, len);
pos = cache_name_pos(dirname, len);
if (pos < 0)
pos = -pos-1;
while (pos < active_nr) {
const struct cache_entry *ce = active_cache[pos++];
unsigned char endchar;
if (strncmp(ce->name, dirname, len))
break;
endchar = ce->name[len];
if (endchar > '/')
break;
if (endchar == '/')
return index_directory;
if (!endchar && S_ISGITLINK(ce->ce_mode))
return index_gitdir;
}
return index_nonexistent;
}
static enum path_treatment treat_directory(struct dir_struct *dir,
struct untracked_cache_dir *untracked,
const char *dirname, int len, int baselen, int exclude,
const struct path_simplify *simplify)
{
switch (directory_exists_in_index(dirname, len-1)) {
case index_directory:
return path_recurse;
case index_gitdir:
return path_none;
case index_nonexistent:
if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES)
break;
if (!(dir->flags & DIR_NO_GITLINKS)) {
unsigned char sha1[20];
if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0)
return path_untracked;
}
return path_recurse;
}
if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES))
return exclude ? path_excluded : path_untracked;
untracked = lookup_untracked(dir->untracked, untracked,
dirname + baselen, len - baselen);
return read_directory_recursive(dir, dirname, len,
untracked, 1, simplify);
}
static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify)
{
if (simplify) {
for (;;) {
const char *match = simplify->path;
int len = simplify->len;
if (!match)
break;
if (len > pathlen)
len = pathlen;
if (!memcmp(path, match, len))
return 0;
simplify++;
}
return 1;
}
return 0;
}
static int exclude_matches_pathspec(const char *path, int len,
const struct path_simplify *simplify)
{
if (simplify) {
for (; simplify->path; simplify++) {
if (len == simplify->len
&& !memcmp(path, simplify->path, len))
return 1;
if (len < simplify->len
&& simplify->path[len] == '/'
&& !memcmp(path, simplify->path, len))
return 1;
}
}
return 0;
}
static int get_index_dtype(const char *path, int len)
{
int pos;
const struct cache_entry *ce;
ce = cache_file_exists(path, len, 0);
if (ce) {
if (!ce_uptodate(ce))
return DT_UNKNOWN;
if (S_ISGITLINK(ce->ce_mode))
return DT_DIR;
return DT_REG;
}
pos = cache_name_pos(path, len);
if (pos >= 0)
return DT_UNKNOWN;
pos = -pos-1;
while (pos < active_nr) {
ce = active_cache[pos++];
if (strncmp(ce->name, path, len))
break;
if (ce->name[len] > '/')
break;
if (ce->name[len] < '/')
continue;
if (!ce_uptodate(ce))
break;
return DT_DIR;
}
return DT_UNKNOWN;
}
static int get_dtype(struct dirent *de, const char *path, int len)
{
int dtype = de ? DTYPE(de) : DT_UNKNOWN;
struct stat st;
if (dtype != DT_UNKNOWN)
return dtype;
dtype = get_index_dtype(path, len);
if (dtype != DT_UNKNOWN)
return dtype;
if (lstat(path, &st))
return dtype;
if (S_ISREG(st.st_mode))
return DT_REG;
if (S_ISDIR(st.st_mode))
return DT_DIR;
if (S_ISLNK(st.st_mode))
return DT_LNK;
return dtype;
}
static enum path_treatment treat_one_path(struct dir_struct *dir,
struct untracked_cache_dir *untracked,
struct strbuf *path,
int baselen,
const struct path_simplify *simplify,
int dtype, struct dirent *de)
{
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);
if (dtype != DT_DIR && has_path_in_index)
return path_none;
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;
exclude = is_excluded(dir, path->buf, &dtype);
if (exclude && !(dir->flags & (DIR_SHOW_IGNORED|DIR_SHOW_IGNORED_TOO)))
return path_excluded;
switch (dtype) {
default:
return path_none;
case DT_DIR:
strbuf_addch(path, '/');
return treat_directory(dir, untracked, path->buf, path->len,
baselen, exclude, simplify);
case DT_REG:
case DT_LNK:
return exclude ? path_excluded : path_untracked;
}
}
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);
if (path->buf[path->len - 1] != '/')
strbuf_addch(path, '/');
if (cdir->ucd->check_only)
return read_directory_recursive(dir, path->buf, path->len,
cdir->ucd, 1, simplify);
return path_recurse;
}
static enum path_treatment treat_path(struct dir_struct *dir,
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_none;
strbuf_setlen(path, baselen);
strbuf_addstr(path, de->d_name);
if (simplify_away(path->buf, path->len, simplify))
return path_none;
dtype = DTYPE(de);
return treat_one_path(dir, untracked, path, baselen, 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;
}
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);
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);
if (cdir->untracked) {
cdir->untracked->valid = 1;
cdir->untracked->recurse = 1;
}
}
static enum path_treatment read_directory_recursive(struct dir_struct *dir,
const char *base, int baselen,
struct untracked_cache_dir *untracked, int check_only,
const struct path_simplify *simplify)
{
struct cached_dir cdir;
enum path_treatment state, subdir_state, dir_state = path_none;
struct strbuf path = STRBUF_INIT;
strbuf_add(&path, base, baselen);
if (open_cached_dir(&cdir, dir, untracked, &path, check_only))
goto out;
if (untracked)
untracked->check_only = !!check_only;
while (!read_cached_dir(&cdir)) {
state = treat_path(dir, untracked, &cdir, &path, baselen, simplify);
if (state > dir_state)
dir_state = state;
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) {
if (dir_state == path_untracked) {
if (cdir.fdir)
add_untracked(untracked, path.buf + baselen);
break;
}
continue;
}
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;
}
}
close_cached_dir(&cdir);
out:
strbuf_release(&path);
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 name_compare(e1->name, e1->len, e2->name, e2->len);
}
static struct path_simplify *create_simplify(const char **pathspec)
{
int nr, alloc = 0;
struct path_simplify *simplify = NULL;
if (!pathspec)
return NULL;
for (nr = 0 ; ; nr++) {
const char *match;
ALLOC_GROW(simplify, nr + 1, alloc);
match = *pathspec++;
if (!match)
break;
simplify[nr].path = match;
simplify[nr].len = simple_length(match);
}
simplify[nr].path = NULL;
simplify[nr].len = 0;
return simplify;
}
static void free_simplify(struct path_simplify *simplify)
{
free(simplify);
}
static int treat_leading_path(struct dir_struct *dir,
const char *path, int len,
const struct path_simplify *simplify)
{
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);
if (!cp)
baselen = len;
else
baselen = cp - path;
strbuf_setlen(&sb, 0);
strbuf_add(&sb, path, baselen);
if (!is_directory(sb.buf))
break;
if (simplify_away(sb.buf, sb.len, simplify))
break;
if (treat_one_path(dir, NULL, &sb, baselen, simplify,
DT_DIR, NULL) == path_none)
break;
if (len <= baselen) {
rc = 1;
break;
}
}
strbuf_release(&sb);
dir->flags = old_flags;
return rc;
}
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());
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;
if (!dir->untracked || getenv("GIT_DISABLE_UNTRACKED_CACHE"))
return NULL;
if (dir->unmanaged_exclude_files)
return NULL;
if (base_len || (pathspec && pathspec->nr))
return NULL;
if (dir->flags != dir->untracked->dir_flags ||
!(dir->flags & DIR_SHOW_OTHER_DIRECTORIES) ||
(dir->flags & (DIR_SHOW_IGNORED | DIR_SHOW_IGNORED_TOO |
DIR_COLLECT_IGNORED)))
return NULL;
if (dir->exclude_per_dir != dir->untracked->exclude_per_dir &&
strcmp(dir->exclude_per_dir, dir->untracked->exclude_per_dir))
return NULL;
if (dir->exclude_list_group[EXC_CMDL].nr)
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);
}
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;
}
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;
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 ? pathspec->_raw : NULL);
untracked = validate_untracked_cache(dir, len, pathspec);
if (!untracked)
dir->untracked = NULL;
if (!len || treat_leading_path(dir, path, len, 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 file_exists(const char *f)
{
struct stat sb;
return lstat(f, &sb) == 0;
}
static int cmp_icase(char a, char b)
{
if (a == b)
return 0;
if (ignore_case)
return toupper(a) - toupper(b);
return a - b;
}
int dir_inside_of(const char *subdir, const char *dir)
{
int offset = 0;
assert(dir && subdir && *dir && *subdir);
while (*dir && *subdir && !cmp_icase(*dir, *subdir)) {
dir++;
subdir++;
offset++;
}
if (*dir && *subdir)
return -1;
if (!*subdir)
return !*dir ? offset : -1;
if (is_dir_sep(dir[-1]))
return is_dir_sep(subdir[-1]) ? offset : -1;
return is_dir_sep(*subdir) ? offset + 1 : -1;
}
int is_inside_dir(const char *dir)
{
char *cwd;
int rc;
if (!dir)
return 0;
cwd = xgetcwd();
rc = (dir_inside_of(cwd, dir) >= 0);
free(cwd);
return rc;
}
int is_empty_dir(const char *path)
{
DIR *dir = opendir(path);
struct dirent *e;
int ret = 1;
if (!dir)
return 0;
while ((e = readdir(dir)) != NULL)
if (!is_dot_or_dotdot(e->d_name)) {
ret = 0;
break;
}
closedir(dir);
return ret;
}
static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up)
{
DIR *dir;
struct dirent *e;
int ret = 0, original_len = path->len, len, kept_down = 0;
int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY);
int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL);
unsigned char submodule_head[20];
if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
!resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) {
if (kept_up)
*kept_up = 1;
return 0;
}
flag &= ~REMOVE_DIR_KEEP_TOPLEVEL;
dir = opendir(path->buf);
if (!dir) {
if (errno == ENOENT)
return keep_toplevel ? -1 : 0;
else if (errno == EACCES && !keep_toplevel)
return rmdir(path->buf);
else
return -1;
}
if (path->buf[original_len - 1] != '/')
strbuf_addch(path, '/');
len = path->len;
while ((e = readdir(dir)) != NULL) {
struct stat st;
if (is_dot_or_dotdot(e->d_name))
continue;
strbuf_setlen(path, len);
strbuf_addstr(path, e->d_name);
if (lstat(path->buf, &st)) {
if (errno == ENOENT)
continue;
} else if (S_ISDIR(st.st_mode)) {
if (!remove_dir_recurse(path, flag, &kept_down))
continue;
} else if (!only_empty &&
(!unlink(path->buf) || errno == ENOENT)) {
continue;
}
ret = -1;
break;
}
closedir(dir);
strbuf_setlen(path, original_len);
if (!ret && !keep_toplevel && !kept_down)
ret = (!rmdir(path->buf) || errno == ENOENT) ? 0 : -1;
else if (kept_up)
*kept_up = !ret;
return ret;
}
int remove_dir_recursively(struct strbuf *path, int flag)
{
return remove_dir_recurse(path, flag, NULL);
}
static GIT_PATH_FUNC(git_path_info_exclude, "info/exclude")
void setup_standard_excludes(struct dir_struct *dir)
{
const char *path;
dir->exclude_per_dir = ".gitignore";
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);
path = git_path_info_exclude();
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 && errno != ENOTDIR)
return -1;
slash = strrchr(name, '/');
if (slash) {
char *dirs = xstrdup(name);
slash = dirs + (slash - name);
do {
*slash = '\0';
} while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/')));
free(dirs);
}
return 0;
}
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;
struct ewah_bitmap *check_only;
struct ewah_bitmap *valid;
struct ewah_bitmap *sha1_valid;
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++;
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);
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 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;
}
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');
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);
}
static void free_untracked(struct untracked_cache_dir *ucd)
{
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);
}
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));
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;
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;
}
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;
}
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);
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;
}
static void invalidate_one_directory(struct untracked_cache *uc,
struct untracked_cache_dir *ucd)
{
uc->dir_invalidated++;
ucd->valid = 0;
ucd->untracked_nr = 0;
}
static int invalidate_one_component(struct untracked_cache *uc,
struct untracked_cache_dir *dir,
const char *path, int len)
{
const char *rest = strchr(path, '/');
if (rest) {
int component_len = rest - path;
struct untracked_cache_dir *d =
lookup_untracked(uc, dir, path, component_len);
int ret =
invalidate_one_component(uc, d, rest + 1,
len - (component_len + 1));
if (ret)
invalidate_one_directory(uc, dir);
return ret;
}
invalidate_one_directory(uc, dir);
return uc->dir_flags & DIR_SHOW_OTHER_DIRECTORIES;
}
void untracked_cache_invalidate_path(struct index_state *istate,
const char *path)
{
if (!istate->untracked || !istate->untracked->root)
return;
invalidate_one_component(istate->untracked, istate->untracked->root,
path, strlen(path));
}
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)
{
untracked_cache_invalidate_path(istate, path);
}