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-rw-r--r--tree-walk.c82
1 files changed, 40 insertions, 42 deletions
diff --git a/tree-walk.c b/tree-walk.c
index 29ead71be1..a033397965 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -1,3 +1,5 @@
+#define USE_THE_REPOSITORY_VARIABLE
+
#include "git-compat-util.h"
#include "tree-walk.h"
#include "dir.h"
@@ -9,36 +11,21 @@
#include "tree.h"
#include "pathspec.h"
#include "json-writer.h"
-
-static const char *get_mode(const char *str, unsigned int *modep)
-{
- unsigned char c;
- unsigned int mode = 0;
-
- if (*str == ' ')
- return NULL;
-
- while ((c = *str++) != ' ') {
- if (c < '0' || c > '7')
- return NULL;
- mode = (mode << 3) + (c - '0');
- }
- *modep = mode;
- return str;
-}
+#include "environment.h"
static int decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned long size, struct strbuf *err)
{
const char *path;
- unsigned int mode, len;
- const unsigned hashsz = the_hash_algo->rawsz;
+ unsigned int len;
+ uint16_t mode;
+ const unsigned hashsz = desc->algo->rawsz;
if (size < hashsz + 3 || buf[size - (hashsz + 1)]) {
strbuf_addstr(err, _("too-short tree object"));
return -1;
}
- path = get_mode(buf, &mode);
+ path = parse_mode(buf, &mode);
if (!path) {
strbuf_addstr(err, _("malformed mode in tree entry"));
return -1;
@@ -53,15 +40,19 @@ static int decode_tree_entry(struct tree_desc *desc, const char *buf, unsigned l
desc->entry.path = path;
desc->entry.mode = (desc->flags & TREE_DESC_RAW_MODES) ? mode : canon_mode(mode);
desc->entry.pathlen = len - 1;
- oidread(&desc->entry.oid, (const unsigned char *)path + len);
+ oidread(&desc->entry.oid, (const unsigned char *)path + len,
+ desc->algo);
return 0;
}
-static int init_tree_desc_internal(struct tree_desc *desc, const void *buffer,
- unsigned long size, struct strbuf *err,
+static int init_tree_desc_internal(struct tree_desc *desc,
+ const struct object_id *oid,
+ const void *buffer, unsigned long size,
+ struct strbuf *err,
enum tree_desc_flags flags)
{
+ desc->algo = (oid && oid->algo) ? &hash_algos[oid->algo] : the_hash_algo;
desc->buffer = buffer;
desc->size = size;
desc->flags = flags;
@@ -70,19 +61,21 @@ static int init_tree_desc_internal(struct tree_desc *desc, const void *buffer,
return 0;
}
-void init_tree_desc(struct tree_desc *desc, const void *buffer, unsigned long size)
+void init_tree_desc(struct tree_desc *desc, const struct object_id *tree_oid,
+ const void *buffer, unsigned long size)
{
struct strbuf err = STRBUF_INIT;
- if (init_tree_desc_internal(desc, buffer, size, &err, 0))
+ if (init_tree_desc_internal(desc, tree_oid, buffer, size, &err, 0))
die("%s", err.buf);
strbuf_release(&err);
}
-int init_tree_desc_gently(struct tree_desc *desc, const void *buffer, unsigned long size,
+int init_tree_desc_gently(struct tree_desc *desc, const struct object_id *oid,
+ const void *buffer, unsigned long size,
enum tree_desc_flags flags)
{
struct strbuf err = STRBUF_INIT;
- int result = init_tree_desc_internal(desc, buffer, size, &err, flags);
+ int result = init_tree_desc_internal(desc, oid, buffer, size, &err, flags);
if (result)
error("%s", err.buf);
strbuf_release(&err);
@@ -99,9 +92,9 @@ void *fill_tree_descriptor(struct repository *r,
if (oid) {
buf = read_object_with_reference(r, oid, OBJ_TREE, &size, NULL);
if (!buf)
- die("unable to read tree %s", oid_to_hex(oid));
+ die(_("unable to read tree (%s)"), oid_to_hex(oid));
}
- init_tree_desc(desc, buf, size);
+ init_tree_desc(desc, oid, buf, size);
return buf;
}
@@ -118,7 +111,7 @@ static void entry_extract(struct tree_desc *t, struct name_entry *a)
static int update_tree_entry_internal(struct tree_desc *desc, struct strbuf *err)
{
const void *buf = desc->buffer;
- const unsigned char *end = (const unsigned char *)desc->entry.path + desc->entry.pathlen + 1 + the_hash_algo->rawsz;
+ const unsigned char *end = (const unsigned char *)desc->entry.path + desc->entry.pathlen + 1 + desc->algo->rawsz;
unsigned long size = desc->size;
unsigned long len = end - (const unsigned char *)buf;
@@ -441,22 +434,25 @@ int traverse_trees(struct index_state *istate,
int n, struct tree_desc *t,
struct traverse_info *info)
{
- int error = 0;
- struct name_entry entry[MAX_TRAVERSE_TREES];
+ int ret = 0;
+ struct name_entry *entry;
int i;
- struct tree_desc_x tx[ARRAY_SIZE(entry)];
+ struct tree_desc_x *tx;
struct strbuf base = STRBUF_INIT;
int interesting = 1;
char *traverse_path;
+ if (traverse_trees_cur_depth > max_allowed_tree_depth)
+ return error("exceeded maximum allowed tree depth");
+
traverse_trees_count++;
traverse_trees_cur_depth++;
if (traverse_trees_cur_depth > traverse_trees_max_depth)
traverse_trees_max_depth = traverse_trees_cur_depth;
- if (n >= ARRAY_SIZE(entry))
- BUG("traverse_trees() called with too many trees (%d)", n);
+ ALLOC_ARRAY(entry, n);
+ ALLOC_ARRAY(tx, n);
for (i = 0; i < n; i++) {
tx[i].d = t[i];
@@ -539,7 +535,7 @@ int traverse_trees(struct index_state *istate,
if (interesting) {
trees_used = info->fn(n, mask, dirmask, entry, info);
if (trees_used < 0) {
- error = trees_used;
+ ret = trees_used;
if (!info->show_all_errors)
break;
}
@@ -551,12 +547,14 @@ int traverse_trees(struct index_state *istate,
}
for (i = 0; i < n; i++)
free_extended_entry(tx + i);
+ free(tx);
+ free(entry);
free(traverse_path);
info->traverse_path = NULL;
strbuf_release(&base);
traverse_trees_cur_depth--;
- return error;
+ return ret;
}
struct dir_state {
@@ -627,7 +625,7 @@ int get_tree_entry(struct repository *r,
retval = -1;
} else {
struct tree_desc t;
- init_tree_desc(&t, tree, size);
+ init_tree_desc(&t, tree_oid, tree, size);
retval = find_tree_entry(r, &t, name, oid, mode);
}
free(tree);
@@ -670,7 +668,7 @@ enum get_oid_result get_tree_entry_follow_symlinks(struct repository *r,
struct tree_desc t;
int follows_remaining = GET_TREE_ENTRY_FOLLOW_SYMLINKS_MAX_LINKS;
- init_tree_desc(&t, NULL, 0UL);
+ init_tree_desc(&t, NULL, NULL, 0UL);
strbuf_addstr(&namebuf, name);
oidcpy(&current_tree_oid, tree_oid);
@@ -706,7 +704,7 @@ enum get_oid_result get_tree_entry_follow_symlinks(struct repository *r,
goto done;
/* descend */
- init_tree_desc(&t, tree, size);
+ init_tree_desc(&t, &current_tree_oid, tree, size);
}
/* Handle symlinks to e.g. a//b by removing leading slashes */
@@ -740,7 +738,7 @@ enum get_oid_result get_tree_entry_follow_symlinks(struct repository *r,
free(parent->tree);
parents_nr--;
parent = &parents[parents_nr - 1];
- init_tree_desc(&t, parent->tree, parent->size);
+ init_tree_desc(&t, &parent->oid, parent->tree, parent->size);
strbuf_remove(&namebuf, 0, remainder ? 3 : 2);
continue;
}
@@ -820,7 +818,7 @@ enum get_oid_result get_tree_entry_follow_symlinks(struct repository *r,
contents_start = contents;
parent = &parents[parents_nr - 1];
- init_tree_desc(&t, parent->tree, parent->size);
+ init_tree_desc(&t, &parent->oid, parent->tree, parent->size);
strbuf_splice(&namebuf, 0, len,
contents_start, link_len);
if (remainder)
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-12 16:14:19 +0000