The attribute code can have a rather deep callstack, through
which we have to pass the "macro_ok" flag. In anticipation
of adding other flags, let's convert this to a generic
bit-field.
Signed-off-by: Jeff King <p...@peff.net>
---
attr.c | 43 ++++++++++++++++++++++++-------------------
1 file changed, 24 insertions(+), 19 deletions(-)
diff --git a/attr.c b/attr.c
index 1fcf042b8..79bd89226 100644
--- a/attr.c
+++ b/attr.c
@@ -151,6 +151,9 @@ struct match_attr {
static const char blank[] = " \t\r\n";
+/* Flags usable in read_attr() and parse_attr_line() family of functions. */
+#define READ_ATTR_MACRO_OK (1<<0)
+
/*
* Parse a whitespace-delimited attribute state (i.e., "attr",
* "-attr", "!attr", or "attr=value") from the string starting at src.
@@ -200,7 +203,7 @@ static const char *parse_attr(const char *src, int lineno,
const char *cp,
}
static struct match_attr *parse_attr_line(const char *line, const char *src,
- int lineno, int macro_ok)
+ int lineno, unsigned flags)
{
int namelen;
int num_attr, i;
@@ -215,7 +218,7 @@ static struct match_attr *parse_attr_line(const char *line,
const char *src,
namelen = strcspn(name, blank);
if (strlen(ATTRIBUTE_MACRO_PREFIX) < namelen &&
starts_with(name, ATTRIBUTE_MACRO_PREFIX)) {
- if (!macro_ok) {
+ if (!(flags & READ_ATTR_MACRO_OK)) {
fprintf(stderr, "%s not allowed: %s:%d\n",
name, src, lineno);
return NULL;
@@ -339,11 +342,11 @@ static void handle_attr_line(struct attr_stack *res,
const char *line,
const char *src,
int lineno,
- int macro_ok)
+ unsigned flags)
{
struct match_attr *a;
- a = parse_attr_line(line, src, lineno, macro_ok);
+ a = parse_attr_line(line, src, lineno, flags);
if (!a)
return;
ALLOC_GROW(res->attrs, res->num_matches + 1, res->alloc);
@@ -358,14 +361,15 @@ static struct attr_stack *read_attr_from_array(const char
**list)
res = xcalloc(1, sizeof(*res));
while ((line = *(list++)) != NULL)
- handle_attr_line(res, line, "[builtin]", ++lineno, 1);
+ handle_attr_line(res, line, "[builtin]", ++lineno,
+ READ_ATTR_MACRO_OK);
return res;
}
static enum git_attr_direction direction;
static struct index_state *use_index;
-static struct attr_stack *read_attr_from_file(const char *path, int macro_ok)
+static struct attr_stack *read_attr_from_file(const char *path, unsigned flags)
{
FILE *fp = fopen(path, "r");
struct attr_stack *res;
@@ -382,13 +386,13 @@ static struct attr_stack *read_attr_from_file(const char
*path, int macro_ok)
char *bufp = buf;
if (!lineno)
skip_utf8_bom(&bufp, strlen(bufp));
- handle_attr_line(res, bufp, path, ++lineno, macro_ok);
+ handle_attr_line(res, bufp, path, ++lineno, flags);
}
fclose(fp);
return res;
}
-static struct attr_stack *read_attr_from_index(const char *path, int macro_ok)
+static struct attr_stack *read_attr_from_index(const char *path, unsigned
flags)
{
struct attr_stack *res;
char *buf, *sp;
@@ -406,34 +410,34 @@ static struct attr_stack *read_attr_from_index(const char
*path, int macro_ok)
;
more = (*ep == '\n');
*ep = '\0';
- handle_attr_line(res, sp, path, ++lineno, macro_ok);
+ handle_attr_line(res, sp, path, ++lineno, flags);
sp = ep + more;
}
free(buf);
return res;
}
-static struct attr_stack *read_attr(const char *path, int macro_ok)
+static struct attr_stack *read_attr(const char *path, unsigned flags)
{
struct attr_stack *res;
if (direction == GIT_ATTR_CHECKOUT) {
- res = read_attr_from_index(path, macro_ok);
+ res = read_attr_from_index(path, flags);
if (!res)
- res = read_attr_from_file(path, macro_ok);
+ res = read_attr_from_file(path, flags);
}
else if (direction == GIT_ATTR_CHECKIN) {
- res = read_attr_from_file(path, macro_ok);
+ res = read_attr_from_file(path, flags);
if (!res)
/*
* There is no checked out .gitattributes file there,
but
* we might have it in the index. We allow operation
in a
* sparsely checked out work tree, so read from it.
*/
- res = read_attr_from_index(path, macro_ok);
+ res = read_attr_from_index(path, flags);
}
else
- res = read_attr_from_index(path, macro_ok);
+ res = read_attr_from_index(path, flags);
if (!res)
res = xcalloc(1, sizeof(*res));
return res;
@@ -493,6 +497,7 @@ static GIT_PATH_FUNC(git_path_info_attributes,
INFOATTRIBUTES_FILE)
static void bootstrap_attr_stack(void)
{
struct attr_stack *elem;
+ unsigned flags = READ_ATTR_MACRO_OK;
if (attr_stack)
return;
@@ -503,7 +508,7 @@ static void bootstrap_attr_stack(void)
attr_stack = elem;
if (git_attr_system()) {
- elem = read_attr_from_file(git_etc_gitattributes(), 1);
+ elem = read_attr_from_file(git_etc_gitattributes(), flags);
if (elem) {
elem->origin = NULL;
elem->prev = attr_stack;
@@ -514,7 +519,7 @@ static void bootstrap_attr_stack(void)
if (!git_attributes_file)
git_attributes_file = xdg_config_home("attributes");
if (git_attributes_file) {
- elem = read_attr_from_file(git_attributes_file, 1);
+ elem = read_attr_from_file(git_attributes_file, flags);
if (elem) {
elem->origin = NULL;
elem->prev = attr_stack;
@@ -523,7 +528,7 @@ static void bootstrap_attr_stack(void)
}
if (!is_bare_repository() || direction == GIT_ATTR_INDEX) {
- elem = read_attr(GITATTRIBUTES_FILE, 1);
+ elem = read_attr(GITATTRIBUTES_FILE, flags);
elem->origin = xstrdup("");
elem->originlen = 0;
elem->prev = attr_stack;
@@ -532,7 +537,7 @@ static void bootstrap_attr_stack(void)
}
if (startup_info->have_repository)
- elem = read_attr_from_file(git_path_info_attributes(), 1);
+ elem = read_attr_from_file(git_path_info_attributes(), flags);
else
elem = NULL;
--
2.11.0.rc0.258.gf434c15
