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-rw-r--r--attr.c105
1 files changed, 76 insertions, 29 deletions
diff --git a/attr.c b/attr.c
index 9922529b58..ddf2b0cbc2 100644
--- a/attr.c
+++ b/attr.c
@@ -7,13 +7,20 @@
*/
#include "cache.h"
+#include "alloc.h"
#include "config.h"
+#include "environment.h"
#include "exec-cmd.h"
#include "attr.h"
#include "dir.h"
+#include "gettext.h"
#include "utf8.h"
#include "quote.h"
+#include "revision.h"
+#include "object-store.h"
+#include "setup.h"
#include "thread-utils.h"
+#include "tree-walk.h"
const char git_attr__true[] = "(builtin)true";
const char git_attr__false[] = "\0(builtin)false";
@@ -603,8 +610,7 @@ struct attr_check *attr_check_dup(const struct attr_check *check)
ret->nr = check->nr;
ret->alloc = check->alloc;
- ALLOC_ARRAY(ret->items, ret->nr);
- COPY_ARRAY(ret->items, check->items, ret->nr);
+ DUP_ARRAY(ret->items, check->items, ret->nr);
return ret;
}
@@ -745,13 +751,61 @@ static struct attr_stack *read_attr_from_file(const char *path, unsigned flags)
return res;
}
-static struct attr_stack *read_attr_from_index(struct index_state *istate,
- const char *path,
- unsigned flags)
+static struct attr_stack *read_attr_from_buf(char *buf, const char *path,
+ unsigned flags)
{
struct attr_stack *res;
- char *buf, *sp;
+ char *sp;
int lineno = 0;
+
+ if (!buf)
+ return NULL;
+
+ CALLOC_ARRAY(res, 1);
+ for (sp = buf; *sp;) {
+ char *ep;
+ int more;
+
+ ep = strchrnul(sp, '\n');
+ more = (*ep == '\n');
+ *ep = '\0';
+ handle_attr_line(res, sp, path, ++lineno, flags);
+ sp = ep + more;
+ }
+ free(buf);
+
+ return res;
+}
+
+static struct attr_stack *read_attr_from_blob(struct index_state *istate,
+ const struct object_id *tree_oid,
+ const char *path, unsigned flags)
+{
+ struct object_id oid;
+ unsigned long sz;
+ enum object_type type;
+ void *buf;
+ unsigned short mode;
+
+ if (!tree_oid)
+ return NULL;
+
+ if (get_tree_entry(istate->repo, tree_oid, path, &oid, &mode))
+ return NULL;
+
+ buf = repo_read_object_file(istate->repo, &oid, &type, &sz);
+ if (!buf || type != OBJ_BLOB) {
+ free(buf);
+ return NULL;
+ }
+
+ return read_attr_from_buf(buf, path, flags);
+}
+
+static struct attr_stack *read_attr_from_index(struct index_state *istate,
+ const char *path, unsigned flags)
+{
+ char *buf;
unsigned long size;
if (!istate)
@@ -779,28 +833,19 @@ static struct attr_stack *read_attr_from_index(struct index_state *istate,
return NULL;
}
- CALLOC_ARRAY(res, 1);
- for (sp = buf; *sp; ) {
- char *ep;
- int more;
-
- ep = strchrnul(sp, '\n');
- more = (*ep == '\n');
- *ep = '\0';
- handle_attr_line(res, sp, path, ++lineno, flags);
- sp = ep + more;
- }
- free(buf);
- return res;
+ return read_attr_from_buf(buf, path, flags);
}
static struct attr_stack *read_attr(struct index_state *istate,
+ const struct object_id *tree_oid,
const char *path, unsigned flags)
{
struct attr_stack *res = NULL;
if (direction == GIT_ATTR_INDEX) {
res = read_attr_from_index(istate, path, flags);
+ } else if (tree_oid) {
+ res = read_attr_from_blob(istate, tree_oid, path, flags);
} else if (!is_bare_repository()) {
if (direction == GIT_ATTR_CHECKOUT) {
res = read_attr_from_index(istate, path, flags);
@@ -860,6 +905,7 @@ static void push_stack(struct attr_stack **attr_stack_p,
}
static void bootstrap_attr_stack(struct index_state *istate,
+ const struct object_id *tree_oid,
struct attr_stack **stack)
{
struct attr_stack *e;
@@ -885,7 +931,7 @@ static void bootstrap_attr_stack(struct index_state *istate,
}
/* root directory */
- e = read_attr(istate, GITATTRIBUTES_FILE, flags | READ_ATTR_NOFOLLOW);
+ e = read_attr(istate, tree_oid, GITATTRIBUTES_FILE, flags | READ_ATTR_NOFOLLOW);
push_stack(stack, e, xstrdup(""), 0);
/* info frame */
@@ -899,6 +945,7 @@ static void bootstrap_attr_stack(struct index_state *istate,
}
static void prepare_attr_stack(struct index_state *istate,
+ const struct object_id *tree_oid,
const char *path, int dirlen,
struct attr_stack **stack)
{
@@ -920,7 +967,7 @@ static void prepare_attr_stack(struct index_state *istate,
* .gitattributes in deeper directories to shallower ones,
* and finally use the built-in set as the default.
*/
- bootstrap_attr_stack(istate, stack);
+ bootstrap_attr_stack(istate, tree_oid, stack);
/*
* Pop the "info" one that is always at the top of the stack.
@@ -975,7 +1022,7 @@ static void prepare_attr_stack(struct index_state *istate,
strbuf_add(&pathbuf, path + pathbuf.len, (len - pathbuf.len));
strbuf_addf(&pathbuf, "/%s", GITATTRIBUTES_FILE);
- next = read_attr(istate, pathbuf.buf, READ_ATTR_NOFOLLOW);
+ next = read_attr(istate, tree_oid, pathbuf.buf, READ_ATTR_NOFOLLOW);
/* reset the pathbuf to not include "/.gitattributes" */
strbuf_setlen(&pathbuf, len);
@@ -1095,8 +1142,8 @@ static void determine_macros(struct all_attrs_item *all_attrs,
* Otherwise all attributes are collected.
*/
static void collect_some_attrs(struct index_state *istate,
- const char *path,
- struct attr_check *check)
+ const struct object_id *tree_oid,
+ const char *path, struct attr_check *check)
{
int pathlen, rem, dirlen;
const char *cp, *last_slash = NULL;
@@ -1115,7 +1162,7 @@ static void collect_some_attrs(struct index_state *istate,
dirlen = 0;
}
- prepare_attr_stack(istate, path, dirlen, &check->stack);
+ prepare_attr_stack(istate, tree_oid, path, dirlen, &check->stack);
all_attrs_init(&g_attr_hashmap, check);
determine_macros(check->all_attrs, check->stack);
@@ -1124,12 +1171,12 @@ static void collect_some_attrs(struct index_state *istate,
}
void git_check_attr(struct index_state *istate,
- const char *path,
+ const struct object_id *tree_oid, const char *path,
struct attr_check *check)
{
int i;
- collect_some_attrs(istate, path, check);
+ collect_some_attrs(istate, tree_oid, path, check);
for (i = 0; i < check->nr; i++) {
unsigned int n = check->items[i].attr->attr_nr;
@@ -1140,13 +1187,13 @@ void git_check_attr(struct index_state *istate,
}
}
-void git_all_attrs(struct index_state *istate,
+void git_all_attrs(struct index_state *istate, const struct object_id *tree_oid,
const char *path, struct attr_check *check)
{
int i;
attr_check_reset(check);
- collect_some_attrs(istate, path, check);
+ collect_some_attrs(istate, tree_oid, path, check);
for (i = 0; i < check->all_attrs_nr; i++) {
const char *name = check->all_attrs[i].attr->name;
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