#include "cache.h"
#include "dir.h"
#include "pathspec.h"
+#include "attr.h"
/*
* Finds which of the given pathspecs match items in the index.
{ PATHSPEC_GLOB, '\0', "glob" },
{ PATHSPEC_ICASE, '\0', "icase" },
{ PATHSPEC_EXCLUDE, '!', "exclude" },
+ { PATHSPEC_ATTR, '\0', "attr" },
};
static void prefix_magic(struct strbuf *sb, int prefixlen, unsigned magic)
strbuf_addf(sb, ",prefix:%d)", prefixlen);
}
+static size_t strcspn_escaped(const char *s, const char *stop)
+{
+ const char *i;
+
+ for (i = s; *i; i++) {
+ /* skip the escaped character */
+ if (i[0] == '\\' && i[1]) {
+ i++;
+ continue;
+ }
+
+ if (strchr(stop, *i))
+ break;
+ }
+ return i - s;
+}
+
+static inline int invalid_value_char(const char ch)
+{
+ if (isalnum(ch) || strchr(",-_", ch))
+ return 0;
+ return -1;
+}
+
+static char *attr_value_unescape(const char *value)
+{
+ const char *src;
+ char *dst, *ret;
+
+ ret = xmallocz(strlen(value));
+ for (src = value, dst = ret; *src; src++, dst++) {
+ if (*src == '\\') {
+ if (!src[1])
+ die(_("Escape character '\\' not allowed as "
+ "last character in attr value"));
+ src++;
+ }
+ if (invalid_value_char(*src))
+ die("cannot use '%c' for value matching", *src);
+ *dst = *src;
+ }
+ *dst = '\0';
+ return ret;
+}
+
+static void parse_pathspec_attr_match(struct pathspec_item *item, const char *value)
+{
+ struct string_list_item *si;
+ struct string_list list = STRING_LIST_INIT_DUP;
+
+ if (item->attr_check || item->attr_match)
+ die(_("Only one 'attr:' specification is allowed."));
+
+ if (!value || !*value)
+ die(_("attr spec must not be empty"));
+
+ string_list_split(&list, value, ' ', -1);
+ string_list_remove_empty_items(&list, 0);
+
+ item->attr_check = attr_check_alloc();
+ item->attr_match = xcalloc(list.nr, sizeof(struct attr_match));
+
+ for_each_string_list_item(si, &list) {
+ size_t attr_len;
+ char *attr_name;
+ const struct git_attr *a;
+
+ int j = item->attr_match_nr++;
+ const char *attr = si->string;
+ struct attr_match *am = &item->attr_match[j];
+
+ switch (*attr) {
+ case '!':
+ am->match_mode = MATCH_UNSPECIFIED;
+ attr++;
+ attr_len = strlen(attr);
+ break;
+ case '-':
+ am->match_mode = MATCH_UNSET;
+ attr++;
+ attr_len = strlen(attr);
+ break;
+ default:
+ attr_len = strcspn(attr, "=");
+ if (attr[attr_len] != '=')
+ am->match_mode = MATCH_SET;
+ else {
+ const char *v = &attr[attr_len + 1];
+ am->match_mode = MATCH_VALUE;
+ am->value = attr_value_unescape(v);
+ }
+ break;
+ }
+
+ attr_name = xmemdupz(attr, attr_len);
+ a = git_attr(attr_name);
+ if (!a)
+ die(_("invalid attribute name %s"), attr_name);
+
+ attr_check_append(item->attr_check, a);
+
+ free(attr_name);
+ }
+
+ if (item->attr_check->nr != item->attr_match_nr)
+ die("BUG: should have same number of entries");
+
+ string_list_clear(&list, 0);
+}
+
static inline int get_literal_global(void)
{
static int literal = -1;
* returns the position in 'elem' after all magic has been parsed
*/
static const char *parse_long_magic(unsigned *magic, int *prefix_len,
+ struct pathspec_item *item,
const char *elem)
{
const char *pos;
const char *nextat;
for (pos = elem + 2; *pos && *pos != ')'; pos = nextat) {
- size_t len = strcspn(pos, ",)");
+ size_t len = strcspn_escaped(pos, ",)");
int i;
if (pos[len] == ',')
continue;
}
+ if (starts_with(pos, "attr:")) {
+ char *attr_body = xmemdupz(pos + 5, len - 5);
+ parse_pathspec_attr_match(item, attr_body);
+ *magic |= PATHSPEC_ATTR;
+ free(attr_body);
+ continue;
+ }
+
for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
if (strlen(pathspec_magic[i].name) == len &&
!strncmp(pathspec_magic[i].name, pos, len)) {
char ch = *pos;
int i;
+ /* Special case alias for '!' */
+ if (ch == '^') {
+ *magic |= PATHSPEC_EXCLUDE;
+ continue;
+ }
+
if (!is_pathspec_magic(ch))
break;
}
static const char *parse_element_magic(unsigned *magic, int *prefix_len,
+ struct pathspec_item *item,
const char *elem)
{
if (elem[0] != ':' || get_literal_global())
return elem; /* nothing to do */
else if (elem[1] == '(')
/* longhand */
- return parse_long_magic(magic, prefix_len, elem);
+ return parse_long_magic(magic, prefix_len, item, elem);
else
/* shorthand */
return parse_short_magic(magic, elem);
char *match;
int pathspec_prefix = -1;
+ item->attr_check = NULL;
+ item->attr_match = NULL;
+ item->attr_match_nr = 0;
+
/* PATHSPEC_LITERAL_PATH ignores magic */
if (flags & PATHSPEC_LITERAL_PATH) {
magic = PATHSPEC_LITERAL;
} else {
copyfrom = parse_element_magic(&element_magic,
&pathspec_prefix,
+ item,
elt);
magic |= element_magic;
magic |= get_global_magic(element_magic);
}
pathspec->nr = n;
- ALLOC_ARRAY(pathspec->items, n);
+ ALLOC_ARRAY(pathspec->items, n + 1);
item = pathspec->items;
prefixlen = prefix ? strlen(prefix) : 0;
pathspec->magic |= item[i].magic;
}
- if (nr_exclude == n)
- die(_("There is nothing to exclude from by :(exclude) patterns.\n"
- "Perhaps you forgot to add either ':/' or '.' ?"));
-
+ /*
+ * If everything is an exclude pattern, add one positive pattern
+ * that matches everyting. We allocated an extra one for this.
+ */
+ if (nr_exclude == n) {
+ int plen = (!(flags & PATHSPEC_PREFER_CWD)) ? 0 : prefixlen;
+ init_pathspec_item(item + n, 0, prefix, plen, "");
+ pathspec->nr++;
+ }
if (pathspec->magic & PATHSPEC_MAXDEPTH) {
if (flags & PATHSPEC_KEEP_ORDER)
void copy_pathspec(struct pathspec *dst, const struct pathspec *src)
{
- int i;
+ int i, j;
*dst = *src;
ALLOC_ARRAY(dst->items, dst->nr);
COPY_ARRAY(dst->items, src->items, dst->nr);
for (i = 0; i < dst->nr; i++) {
- dst->items[i].match = xstrdup(src->items[i].match);
- dst->items[i].original = xstrdup(src->items[i].original);
+ struct pathspec_item *d = &dst->items[i];
+ struct pathspec_item *s = &src->items[i];
+
+ d->match = xstrdup(s->match);
+ d->original = xstrdup(s->original);
+
+ ALLOC_ARRAY(d->attr_match, d->attr_match_nr);
+ COPY_ARRAY(d->attr_match, s->attr_match, d->attr_match_nr);
+ for (j = 0; j < d->attr_match_nr; j++) {
+ const char *value = s->attr_match[j].value;
+ d->attr_match[j].value = xstrdup_or_null(value);
+ }
+
+ d->attr_check = attr_check_dup(s->attr_check);
}
}
void clear_pathspec(struct pathspec *pathspec)
{
- int i;
+ int i, j;
for (i = 0; i < pathspec->nr; i++) {
free(pathspec->items[i].match);
free(pathspec->items[i].original);
+
+ for (j = 0; j < pathspec->items[j].attr_match_nr; j++)
+ free(pathspec->items[i].attr_match[j].value);
+ free(pathspec->items[i].attr_match);
+
+ if (pathspec->items[i].attr_check)
+ attr_check_free(pathspec->items[i].attr_check);
}
+
free(pathspec->items);
pathspec->items = NULL;
pathspec->nr = 0;