/*
* Used to set up core.excludesfile and .git/info/exclude lists.
*/
void add_excludes_from_file(struct dir_struct *dir, const char *fname)
{
struct exclude_list *el;
el = add_exclude_list(dir, EXC_FILE, fname);
if (add_excludes_from_file_to_list(fname, "", 0, el, 0) < 0)
die("cannot use %s as an exclude file", fname);
}
/*
* Loads the per-directory exclude list for the substring of base
* which has a char length of baselen.
*/
static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
{
struct exclude_list_group *group;
struct exclude_list *el;
struct exclude_stack *stk = NULL;
int current;
group = &dir->exclude_list_group[EXC_DIRS];
/* Pop the exclude lists from the EXCL_DIRS exclude_list_group
* which originate from directories not in the prefix of the
* path being checked. */
while ((stk = dir->exclude_stack) != NULL) {
if (stk->baselen <= baselen &&
!strncmp(dir->basebuf, 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 strdup() below */
clear_exclude_list(el);
free(stk);
group->nr--;
}
/* Skip traversing into sub directories if the parent is excluded */
if (dir->exclude)
return;
/* 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;
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 = group->nr;
el = add_exclude_list(dir, EXC_DIRS, NULL);
memcpy(dir->basebuf + current, base + current,
stk->baselen - current);
/* Abort if the directory is excluded */
if (stk->baselen) {
int dt = DT_DIR;
dir->basebuf[stk->baselen - 1] = 0;
dir->exclude = last_exclude_matching_from_lists(dir,
dir->basebuf, stk->baselen - 1,
dir->basebuf + current, &dt);
dir->basebuf[stk->baselen - 1] = '/';
if (dir->exclude &&
dir->exclude->flags & EXC_FLAG_NEGATIVE)
dir->exclude = NULL;
if (dir->exclude) {
dir->basebuf[stk->baselen] = 0;
dir->exclude_stack = stk;
return;
}
}
/* Try to read per-directory file unless path is too long */
if (dir->exclude_per_dir &&
stk->baselen + strlen(dir->exclude_per_dir) < PATH_MAX) {
strcpy(dir->basebuf + stk->baselen,
dir->exclude_per_dir);
/*
* 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
* strdup() and free() here in the caller.
*/
el->src = strdup(dir->basebuf);
add_excludes_from_file_to_list(dir->basebuf,
dir->basebuf, stk->baselen, el, 1);
}
dir->exclude_stack = stk;
current = stk->baselen;
}
dir->basebuf[baselen] = '\0';
}
/*
* Loads the per-directory exclude list for the substring of base
* which has a char length of baselen.
*/
static void prep_exclude(struct dir_struct *dir, const char *base, int baselen)
{
struct exclude_list_group *group;
struct exclude_list *el;
struct exclude_stack *stk = NULL;
int current;
group = &dir->exclude_list_group[EXC_DIRS];
/*
* Pop the exclude lists from the EXCL_DIRS exclude_list_group
* which originate from directories not in the prefix of the
* path being checked.
*/
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--;
}
/* 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);
while (current < baselen) {
const char *cp;
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++;
}
stk->prev = dir->exclude_stack;
stk->baselen = cp - base;
stk->exclude_ix = group->nr;
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;
}
}
/* Try to read per-directory file */
if (dir->exclude_per_dir) {
/*
* 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_from_file_to_list(el->src, el->src,
stk->baselen, el, 1);
}
dir->exclude_stack = stk;
current = stk->baselen;
}
strbuf_setlen(&dir->basebuf, baselen);
}
void add_exclude(char *pattern, int include)
{
add_exclude_list(pattern,&exclude_list, include);
}
