merge(3p/git): Merge git upstream at v2.26.2
This commit is contained in:
Vincent Ambo
commit
5229c9b232
1006 changed files with 149006 additions and 60819 deletions
548
third_party/git/fsck.c
vendored
548
third_party/git/fsck.c
vendored
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@ -9,12 +9,14 @@
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#include "tag.h"
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#include "fsck.h"
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#include "refs.h"
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#include "url.h"
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#include "utf8.h"
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#include "decorate.h"
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#include "oidset.h"
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#include "packfile.h"
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#include "submodule-config.h"
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#include "config.h"
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#include "credential.h"
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#include "help.h"
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static struct oidset gitmodules_found = OIDSET_INIT;
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@ -43,21 +45,17 @@ static struct oidset gitmodules_done = OIDSET_INIT;
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FUNC(MISSING_AUTHOR, ERROR) \
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FUNC(MISSING_COMMITTER, ERROR) \
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FUNC(MISSING_EMAIL, ERROR) \
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FUNC(MISSING_GRAFT, ERROR) \
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FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
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FUNC(MISSING_OBJECT, ERROR) \
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FUNC(MISSING_PARENT, ERROR) \
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FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
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FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
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FUNC(MISSING_TAG, ERROR) \
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FUNC(MISSING_TAG_ENTRY, ERROR) \
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FUNC(MISSING_TAG_OBJECT, ERROR) \
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FUNC(MISSING_TREE, ERROR) \
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FUNC(MISSING_TREE_OBJECT, ERROR) \
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FUNC(MISSING_TYPE, ERROR) \
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FUNC(MISSING_TYPE_ENTRY, ERROR) \
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FUNC(MULTIPLE_AUTHORS, ERROR) \
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FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
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FUNC(TREE_NOT_SORTED, ERROR) \
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FUNC(UNKNOWN_TYPE, ERROR) \
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FUNC(ZERO_PADDED_DATE, ERROR) \
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@ -68,6 +66,7 @@ static struct oidset gitmodules_done = OIDSET_INIT;
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FUNC(GITMODULES_SYMLINK, ERROR) \
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FUNC(GITMODULES_URL, ERROR) \
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FUNC(GITMODULES_PATH, ERROR) \
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FUNC(GITMODULES_UPDATE, ERROR) \
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/* warnings */ \
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FUNC(BAD_FILEMODE, WARN) \
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FUNC(EMPTY_NAME, WARN) \
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@ -281,14 +280,16 @@ static void append_msg_id(struct strbuf *sb, const char *msg_id)
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strbuf_addstr(sb, ": ");
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}
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static int object_on_skiplist(struct fsck_options *opts, struct object *obj)
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static int object_on_skiplist(struct fsck_options *opts,
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const struct object_id *oid)
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{
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return opts && obj && oidset_contains(&opts->skiplist, &obj->oid);
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return opts && oid && oidset_contains(&opts->skiplist, oid);
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}
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__attribute__((format (printf, 4, 5)))
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static int report(struct fsck_options *options, struct object *object,
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enum fsck_msg_id id, const char *fmt, ...)
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__attribute__((format (printf, 5, 6)))
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static int report(struct fsck_options *options,
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const struct object_id *oid, enum object_type object_type,
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enum fsck_msg_id id, const char *fmt, ...)
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{
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va_list ap;
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struct strbuf sb = STRBUF_INIT;
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@ -297,7 +298,7 @@ static int report(struct fsck_options *options, struct object *object,
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if (msg_type == FSCK_IGNORE)
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return 0;
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if (object_on_skiplist(options, object))
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if (object_on_skiplist(options, oid))
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return 0;
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if (msg_type == FSCK_FATAL)
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@ -309,49 +310,71 @@ static int report(struct fsck_options *options, struct object *object,
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va_start(ap, fmt);
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strbuf_vaddf(&sb, fmt, ap);
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result = options->error_func(options, object, msg_type, sb.buf);
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result = options->error_func(options, oid, object_type,
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msg_type, sb.buf);
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strbuf_release(&sb);
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va_end(ap);
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return result;
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}
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static char *get_object_name(struct fsck_options *options, struct object *obj)
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void fsck_enable_object_names(struct fsck_options *options)
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{
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if (!options->object_names)
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return NULL;
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return lookup_decoration(options->object_names, obj);
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options->object_names = kh_init_oid_map();
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}
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static void put_object_name(struct fsck_options *options, struct object *obj,
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const char *fmt, ...)
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const char *fsck_get_object_name(struct fsck_options *options,
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const struct object_id *oid)
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{
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khiter_t pos;
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if (!options->object_names)
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return NULL;
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pos = kh_get_oid_map(options->object_names, *oid);
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if (pos >= kh_end(options->object_names))
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return NULL;
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return kh_value(options->object_names, pos);
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}
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void fsck_put_object_name(struct fsck_options *options,
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const struct object_id *oid,
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const char *fmt, ...)
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{
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va_list ap;
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struct strbuf buf = STRBUF_INIT;
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char *existing;
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khiter_t pos;
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int hashret;
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if (!options->object_names)
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return;
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existing = lookup_decoration(options->object_names, obj);
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if (existing)
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pos = kh_put_oid_map(options->object_names, *oid, &hashret);
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if (!hashret)
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return;
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va_start(ap, fmt);
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strbuf_vaddf(&buf, fmt, ap);
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add_decoration(options->object_names, obj, strbuf_detach(&buf, NULL));
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kh_value(options->object_names, pos) = strbuf_detach(&buf, NULL);
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va_end(ap);
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}
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static const char *describe_object(struct fsck_options *o, struct object *obj)
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const char *fsck_describe_object(struct fsck_options *options,
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const struct object_id *oid)
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{
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static struct strbuf buf = STRBUF_INIT;
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char *name;
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static struct strbuf bufs[] = {
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STRBUF_INIT, STRBUF_INIT, STRBUF_INIT, STRBUF_INIT
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};
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static int b = 0;
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struct strbuf *buf;
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const char *name = fsck_get_object_name(options, oid);
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strbuf_reset(&buf);
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strbuf_addstr(&buf, oid_to_hex(&obj->oid));
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if (o->object_names && (name = lookup_decoration(o->object_names, obj)))
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strbuf_addf(&buf, " (%s)", name);
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buf = bufs + b;
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b = (b + 1) % ARRAY_SIZE(bufs);
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strbuf_reset(buf);
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strbuf_addstr(buf, oid_to_hex(oid));
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if (name)
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strbuf_addf(buf, " (%s)", name);
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return buf.buf;
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return buf->buf;
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}
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static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *options)
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@ -364,7 +387,7 @@ static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *op
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if (parse_tree(tree))
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return -1;
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name = get_object_name(options, &tree->object);
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name = fsck_get_object_name(options, &tree->object.oid);
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if (init_tree_desc_gently(&desc, tree->buffer, tree->size))
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return -1;
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while (tree_entry_gently(&desc, &entry)) {
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@ -377,20 +400,21 @@ static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *op
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if (S_ISDIR(entry.mode)) {
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obj = (struct object *)lookup_tree(the_repository, &entry.oid);
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if (name && obj)
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put_object_name(options, obj, "%s%s/", name,
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entry.path);
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fsck_put_object_name(options, &entry.oid, "%s%s/",
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name, entry.path);
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result = options->walk(obj, OBJ_TREE, data, options);
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}
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else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode)) {
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obj = (struct object *)lookup_blob(the_repository, &entry.oid);
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if (name && obj)
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put_object_name(options, obj, "%s%s", name,
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entry.path);
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fsck_put_object_name(options, &entry.oid, "%s%s",
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name, entry.path);
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result = options->walk(obj, OBJ_BLOB, data, options);
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}
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else {
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result = error("in tree %s: entry %s has bad mode %.6o",
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describe_object(options, &tree->object), entry.path, entry.mode);
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fsck_describe_object(options, &tree->object.oid),
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entry.path, entry.mode);
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}
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if (result < 0)
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return result;
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@ -411,10 +435,10 @@ static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_optio
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if (parse_commit(commit))
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return -1;
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name = get_object_name(options, &commit->object);
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name = fsck_get_object_name(options, &commit->object.oid);
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if (name)
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put_object_name(options, &get_commit_tree(commit)->object,
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"%s:", name);
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fsck_put_object_name(options, get_commit_tree_oid(commit),
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"%s:", name);
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result = options->walk((struct object *)get_commit_tree(commit),
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OBJ_TREE, data, options);
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@ -442,16 +466,17 @@ static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_optio
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while (parents) {
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if (name) {
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struct object *obj = &parents->item->object;
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struct object_id *oid = &parents->item->object.oid;
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if (counter++)
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put_object_name(options, obj, "%s^%d",
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name, counter);
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fsck_put_object_name(options, oid, "%s^%d",
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name, counter);
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else if (generation > 0)
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put_object_name(options, obj, "%.*s~%d",
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name_prefix_len, name, generation + 1);
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fsck_put_object_name(options, oid, "%.*s~%d",
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name_prefix_len, name,
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generation + 1);
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else
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put_object_name(options, obj, "%s^", name);
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fsck_put_object_name(options, oid, "%s^", name);
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}
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result = options->walk((struct object *)parents->item, OBJ_COMMIT, data, options);
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if (result < 0)
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@ -465,12 +490,12 @@ static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_optio
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static int fsck_walk_tag(struct tag *tag, void *data, struct fsck_options *options)
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{
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char *name = get_object_name(options, &tag->object);
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const char *name = fsck_get_object_name(options, &tag->object.oid);
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if (parse_tag(tag))
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return -1;
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if (name)
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put_object_name(options, tag->tagged, "%s", name);
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fsck_put_object_name(options, &tag->tagged->oid, "%s", name);
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return options->walk(tag->tagged, OBJ_ANY, data, options);
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}
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@ -492,7 +517,8 @@ int fsck_walk(struct object *obj, void *data, struct fsck_options *options)
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case OBJ_TAG:
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return fsck_walk_tag((struct tag *)obj, data, options);
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default:
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error("Unknown object type for %s", describe_object(options, obj));
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error("Unknown object type for %s",
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fsck_describe_object(options, &obj->oid));
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return -1;
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}
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}
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@ -543,7 +569,9 @@ static int verify_ordered(unsigned mode1, const char *name1, unsigned mode2, con
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return c1 < c2 ? 0 : TREE_UNORDERED;
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}
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static int fsck_tree(struct tree *item, struct fsck_options *options)
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static int fsck_tree(const struct object_id *oid,
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const char *buffer, unsigned long size,
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struct fsck_options *options)
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{
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int retval = 0;
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int has_null_sha1 = 0;
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@ -560,8 +588,8 @@ static int fsck_tree(struct tree *item, struct fsck_options *options)
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unsigned o_mode;
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const char *o_name;
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if (init_tree_desc_gently(&desc, item->buffer, item->size)) {
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retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
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if (init_tree_desc_gently(&desc, buffer, size)) {
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
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return retval;
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}
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@ -570,7 +598,7 @@ static int fsck_tree(struct tree *item, struct fsck_options *options)
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while (desc.size) {
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unsigned short mode;
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const char *name;
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const char *name, *backslash;
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const struct object_id *oid;
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oid = tree_entry_extract(&desc, &name, &mode);
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@ -587,13 +615,30 @@ static int fsck_tree(struct tree *item, struct fsck_options *options)
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if (!S_ISLNK(mode))
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oidset_insert(&gitmodules_found, oid);
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else
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retval += report(options, &item->object,
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retval += report(options,
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oid, OBJ_TREE,
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FSCK_MSG_GITMODULES_SYMLINK,
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".gitmodules is a symbolic link");
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}
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if ((backslash = strchr(name, '\\'))) {
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while (backslash) {
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backslash++;
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has_dotgit |= is_ntfs_dotgit(backslash);
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if (is_ntfs_dotgitmodules(backslash)) {
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if (!S_ISLNK(mode))
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oidset_insert(&gitmodules_found, oid);
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else
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retval += report(options, oid, OBJ_TREE,
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FSCK_MSG_GITMODULES_SYMLINK,
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".gitmodules is a symbolic link");
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}
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backslash = strchr(backslash, '\\');
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}
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}
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if (update_tree_entry_gently(&desc)) {
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retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
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break;
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}
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@ -638,30 +683,31 @@ static int fsck_tree(struct tree *item, struct fsck_options *options)
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}
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if (has_null_sha1)
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retval += report(options, &item->object, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1");
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1");
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if (has_full_path)
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retval += report(options, &item->object, FSCK_MSG_FULL_PATHNAME, "contains full pathnames");
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_FULL_PATHNAME, "contains full pathnames");
|
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if (has_empty_name)
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retval += report(options, &item->object, FSCK_MSG_EMPTY_NAME, "contains empty pathname");
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_EMPTY_NAME, "contains empty pathname");
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if (has_dot)
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retval += report(options, &item->object, FSCK_MSG_HAS_DOT, "contains '.'");
|
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_HAS_DOT, "contains '.'");
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if (has_dotdot)
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retval += report(options, &item->object, FSCK_MSG_HAS_DOTDOT, "contains '..'");
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_HAS_DOTDOT, "contains '..'");
|
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if (has_dotgit)
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retval += report(options, &item->object, FSCK_MSG_HAS_DOTGIT, "contains '.git'");
|
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_HAS_DOTGIT, "contains '.git'");
|
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if (has_zero_pad)
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retval += report(options, &item->object, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes");
|
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes");
|
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if (has_bad_modes)
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retval += report(options, &item->object, FSCK_MSG_BAD_FILEMODE, "contains bad file modes");
|
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_BAD_FILEMODE, "contains bad file modes");
|
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if (has_dup_entries)
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retval += report(options, &item->object, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries");
|
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries");
|
||||
if (not_properly_sorted)
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retval += report(options, &item->object, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted");
|
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retval += report(options, oid, OBJ_TREE, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted");
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return retval;
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||||
}
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|
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static int verify_headers(const void *data, unsigned long size,
|
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struct object *obj, struct fsck_options *options)
|
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const struct object_id *oid, enum object_type type,
|
||||
struct fsck_options *options)
|
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{
|
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const char *buffer = (const char *)data;
|
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unsigned long i;
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|
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@ -669,7 +715,7 @@ static int verify_headers(const void *data, unsigned long size,
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for (i = 0; i < size; i++) {
|
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switch (buffer[i]) {
|
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case '\0':
|
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return report(options, obj,
|
||||
return report(options, oid, type,
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FSCK_MSG_NUL_IN_HEADER,
|
||||
"unterminated header: NUL at offset %ld", i);
|
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case '\n':
|
||||
|
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@ -687,11 +733,13 @@ static int verify_headers(const void *data, unsigned long size,
|
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if (size && buffer[size - 1] == '\n')
|
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return 0;
|
||||
|
||||
return report(options, obj,
|
||||
return report(options, oid, type,
|
||||
FSCK_MSG_UNTERMINATED_HEADER, "unterminated header");
|
||||
}
|
||||
|
||||
static int fsck_ident(const char **ident, struct object *obj, struct fsck_options *options)
|
||||
static int fsck_ident(const char **ident,
|
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const struct object_id *oid, enum object_type type,
|
||||
struct fsck_options *options)
|
||||
{
|
||||
const char *p = *ident;
|
||||
char *end;
|
||||
|
|
@ -701,28 +749,28 @@ static int fsck_ident(const char **ident, struct object *obj, struct fsck_option
|
|||
(*ident)++;
|
||||
|
||||
if (*p == '<')
|
||||
return report(options, obj, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
|
||||
return report(options, oid, type, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
|
||||
p += strcspn(p, "<>\n");
|
||||
if (*p == '>')
|
||||
return report(options, obj, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name");
|
||||
return report(options, oid, type, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name");
|
||||
if (*p != '<')
|
||||
return report(options, obj, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email");
|
||||
return report(options, oid, type, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email");
|
||||
if (p[-1] != ' ')
|
||||
return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
|
||||
return report(options, oid, type, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
|
||||
p++;
|
||||
p += strcspn(p, "<>\n");
|
||||
if (*p != '>')
|
||||
return report(options, obj, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email");
|
||||
return report(options, oid, type, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email");
|
||||
p++;
|
||||
if (*p != ' ')
|
||||
return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date");
|
||||
return report(options, oid, type, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date");
|
||||
p++;
|
||||
if (*p == '0' && p[1] != ' ')
|
||||
return report(options, obj, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date");
|
||||
return report(options, oid, type, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date");
|
||||
if (date_overflows(parse_timestamp(p, &end, 10)))
|
||||
return report(options, obj, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow");
|
||||
return report(options, oid, type, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow");
|
||||
if ((end == p || *end != ' '))
|
||||
return report(options, obj, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date");
|
||||
return report(options, oid, type, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date");
|
||||
p = end + 1;
|
||||
if ((*p != '+' && *p != '-') ||
|
||||
!isdigit(p[1]) ||
|
||||
|
|
@ -730,83 +778,60 @@ static int fsck_ident(const char **ident, struct object *obj, struct fsck_option
|
|||
!isdigit(p[3]) ||
|
||||
!isdigit(p[4]) ||
|
||||
(p[5] != '\n'))
|
||||
return report(options, obj, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone");
|
||||
return report(options, oid, type, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone");
|
||||
p += 6;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fsck_commit_buffer(struct commit *commit, const char *buffer,
|
||||
unsigned long size, struct fsck_options *options)
|
||||
static int fsck_commit(const struct object_id *oid,
|
||||
const char *buffer, unsigned long size,
|
||||
struct fsck_options *options)
|
||||
{
|
||||
struct object_id tree_oid, oid;
|
||||
struct commit_graft *graft;
|
||||
unsigned parent_count, parent_line_count = 0, author_count;
|
||||
struct object_id tree_oid, parent_oid;
|
||||
unsigned author_count;
|
||||
int err;
|
||||
const char *buffer_begin = buffer;
|
||||
const char *p;
|
||||
|
||||
if (verify_headers(buffer, size, &commit->object, options))
|
||||
if (verify_headers(buffer, size, oid, OBJ_COMMIT, options))
|
||||
return -1;
|
||||
|
||||
if (!skip_prefix(buffer, "tree ", &buffer))
|
||||
return report(options, &commit->object, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line");
|
||||
return report(options, oid, OBJ_COMMIT, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line");
|
||||
if (parse_oid_hex(buffer, &tree_oid, &p) || *p != '\n') {
|
||||
err = report(options, &commit->object, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1");
|
||||
err = report(options, oid, OBJ_COMMIT, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1");
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
buffer = p + 1;
|
||||
while (skip_prefix(buffer, "parent ", &buffer)) {
|
||||
if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') {
|
||||
err = report(options, &commit->object, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1");
|
||||
if (parse_oid_hex(buffer, &parent_oid, &p) || *p != '\n') {
|
||||
err = report(options, oid, OBJ_COMMIT, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1");
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
buffer = p + 1;
|
||||
parent_line_count++;
|
||||
}
|
||||
graft = lookup_commit_graft(the_repository, &commit->object.oid);
|
||||
parent_count = commit_list_count(commit->parents);
|
||||
if (graft) {
|
||||
if (graft->nr_parent == -1 && !parent_count)
|
||||
; /* shallow commit */
|
||||
else if (graft->nr_parent != parent_count) {
|
||||
err = report(options, &commit->object, FSCK_MSG_MISSING_GRAFT, "graft objects missing");
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
} else {
|
||||
if (parent_count != parent_line_count) {
|
||||
err = report(options, &commit->object, FSCK_MSG_MISSING_PARENT, "parent objects missing");
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
}
|
||||
author_count = 0;
|
||||
while (skip_prefix(buffer, "author ", &buffer)) {
|
||||
author_count++;
|
||||
err = fsck_ident(&buffer, &commit->object, options);
|
||||
err = fsck_ident(&buffer, oid, OBJ_COMMIT, options);
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
if (author_count < 1)
|
||||
err = report(options, &commit->object, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line");
|
||||
err = report(options, oid, OBJ_COMMIT, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line");
|
||||
else if (author_count > 1)
|
||||
err = report(options, &commit->object, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines");
|
||||
err = report(options, oid, OBJ_COMMIT, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines");
|
||||
if (err)
|
||||
return err;
|
||||
if (!skip_prefix(buffer, "committer ", &buffer))
|
||||
return report(options, &commit->object, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line");
|
||||
err = fsck_ident(&buffer, &commit->object, options);
|
||||
return report(options, oid, OBJ_COMMIT, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line");
|
||||
err = fsck_ident(&buffer, oid, OBJ_COMMIT, options);
|
||||
if (err)
|
||||
return err;
|
||||
if (!get_commit_tree(commit)) {
|
||||
err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", oid_to_hex(&tree_oid));
|
||||
if (err)
|
||||
return err;
|
||||
}
|
||||
if (memchr(buffer_begin, '\0', size)) {
|
||||
err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT,
|
||||
err = report(options, oid, OBJ_COMMIT, FSCK_MSG_NUL_IN_COMMIT,
|
||||
"NUL byte in the commit object body");
|
||||
if (err)
|
||||
return err;
|
||||
|
|
@ -814,91 +839,60 @@ static int fsck_commit_buffer(struct commit *commit, const char *buffer,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int fsck_commit(struct commit *commit, const char *data,
|
||||
unsigned long size, struct fsck_options *options)
|
||||
static int fsck_tag(const struct object_id *oid, const char *buffer,
|
||||
unsigned long size, struct fsck_options *options)
|
||||
{
|
||||
const char *buffer = data ? data : get_commit_buffer(commit, &size);
|
||||
int ret = fsck_commit_buffer(commit, buffer, size, options);
|
||||
if (!data)
|
||||
unuse_commit_buffer(commit, buffer);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int fsck_tag_buffer(struct tag *tag, const char *data,
|
||||
unsigned long size, struct fsck_options *options)
|
||||
{
|
||||
struct object_id oid;
|
||||
struct object_id tagged_oid;
|
||||
int ret = 0;
|
||||
const char *buffer;
|
||||
char *to_free = NULL, *eol;
|
||||
char *eol;
|
||||
struct strbuf sb = STRBUF_INIT;
|
||||
const char *p;
|
||||
|
||||
if (data)
|
||||
buffer = data;
|
||||
else {
|
||||
enum object_type type;
|
||||
|
||||
buffer = to_free =
|
||||
read_object_file(&tag->object.oid, &type, &size);
|
||||
if (!buffer)
|
||||
return report(options, &tag->object,
|
||||
FSCK_MSG_MISSING_TAG_OBJECT,
|
||||
"cannot read tag object");
|
||||
|
||||
if (type != OBJ_TAG) {
|
||||
ret = report(options, &tag->object,
|
||||
FSCK_MSG_TAG_OBJECT_NOT_TAG,
|
||||
"expected tag got %s",
|
||||
type_name(type));
|
||||
goto done;
|
||||
}
|
||||
}
|
||||
|
||||
ret = verify_headers(buffer, size, &tag->object, options);
|
||||
ret = verify_headers(buffer, size, oid, OBJ_TAG, options);
|
||||
if (ret)
|
||||
goto done;
|
||||
|
||||
if (!skip_prefix(buffer, "object ", &buffer)) {
|
||||
ret = report(options, &tag->object, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line");
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line");
|
||||
goto done;
|
||||
}
|
||||
if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') {
|
||||
ret = report(options, &tag->object, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1");
|
||||
if (parse_oid_hex(buffer, &tagged_oid, &p) || *p != '\n') {
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1");
|
||||
if (ret)
|
||||
goto done;
|
||||
}
|
||||
buffer = p + 1;
|
||||
|
||||
if (!skip_prefix(buffer, "type ", &buffer)) {
|
||||
ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line");
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line");
|
||||
goto done;
|
||||
}
|
||||
eol = strchr(buffer, '\n');
|
||||
if (!eol) {
|
||||
ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line");
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line");
|
||||
goto done;
|
||||
}
|
||||
if (type_from_string_gently(buffer, eol - buffer, 1) < 0)
|
||||
ret = report(options, &tag->object, FSCK_MSG_BAD_TYPE, "invalid 'type' value");
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_BAD_TYPE, "invalid 'type' value");
|
||||
if (ret)
|
||||
goto done;
|
||||
buffer = eol + 1;
|
||||
|
||||
if (!skip_prefix(buffer, "tag ", &buffer)) {
|
||||
ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line");
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line");
|
||||
goto done;
|
||||
}
|
||||
eol = strchr(buffer, '\n');
|
||||
if (!eol) {
|
||||
ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line");
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line");
|
||||
goto done;
|
||||
}
|
||||
strbuf_addf(&sb, "refs/tags/%.*s", (int)(eol - buffer), buffer);
|
||||
if (check_refname_format(sb.buf, 0)) {
|
||||
ret = report(options, &tag->object, FSCK_MSG_BAD_TAG_NAME,
|
||||
"invalid 'tag' name: %.*s",
|
||||
(int)(eol - buffer), buffer);
|
||||
ret = report(options, oid, OBJ_TAG,
|
||||
FSCK_MSG_BAD_TAG_NAME,
|
||||
"invalid 'tag' name: %.*s",
|
||||
(int)(eol - buffer), buffer);
|
||||
if (ret)
|
||||
goto done;
|
||||
}
|
||||
|
|
@ -906,32 +900,163 @@ static int fsck_tag_buffer(struct tag *tag, const char *data,
|
|||
|
||||
if (!skip_prefix(buffer, "tagger ", &buffer)) {
|
||||
/* early tags do not contain 'tagger' lines; warn only */
|
||||
ret = report(options, &tag->object, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line");
|
||||
ret = report(options, oid, OBJ_TAG, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line");
|
||||
if (ret)
|
||||
goto done;
|
||||
}
|
||||
else
|
||||
ret = fsck_ident(&buffer, &tag->object, options);
|
||||
ret = fsck_ident(&buffer, oid, OBJ_TAG, options);
|
||||
|
||||
done:
|
||||
strbuf_release(&sb);
|
||||
free(to_free);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int fsck_tag(struct tag *tag, const char *data,
|
||||
unsigned long size, struct fsck_options *options)
|
||||
/*
|
||||
* Like builtin/submodule--helper.c's starts_with_dot_slash, but without
|
||||
* relying on the platform-dependent is_dir_sep helper.
|
||||
*
|
||||
* This is for use in checking whether a submodule URL is interpreted as
|
||||
* relative to the current directory on any platform, since \ is a
|
||||
* directory separator on Windows but not on other platforms.
|
||||
*/
|
||||
static int starts_with_dot_slash(const char *str)
|
||||
{
|
||||
struct object *tagged = tag->tagged;
|
||||
return str[0] == '.' && (str[1] == '/' || str[1] == '\\');
|
||||
}
|
||||
|
||||
if (!tagged)
|
||||
return report(options, &tag->object, FSCK_MSG_BAD_TAG_OBJECT, "could not load tagged object");
|
||||
/*
|
||||
* Like starts_with_dot_slash, this is a variant of submodule--helper's
|
||||
* helper of the same name with the twist that it accepts backslash as a
|
||||
* directory separator even on non-Windows platforms.
|
||||
*/
|
||||
static int starts_with_dot_dot_slash(const char *str)
|
||||
{
|
||||
return str[0] == '.' && starts_with_dot_slash(str + 1);
|
||||
}
|
||||
|
||||
return fsck_tag_buffer(tag, data, size, options);
|
||||
static int submodule_url_is_relative(const char *url)
|
||||
{
|
||||
return starts_with_dot_slash(url) || starts_with_dot_dot_slash(url);
|
||||
}
|
||||
|
||||
/*
|
||||
* Count directory components that a relative submodule URL should chop
|
||||
* from the remote_url it is to be resolved against.
|
||||
*
|
||||
* In other words, this counts "../" components at the start of a
|
||||
* submodule URL.
|
||||
*
|
||||
* Returns the number of directory components to chop and writes a
|
||||
* pointer to the next character of url after all leading "./" and
|
||||
* "../" components to out.
|
||||
*/
|
||||
static int count_leading_dotdots(const char *url, const char **out)
|
||||
{
|
||||
int result = 0;
|
||||
while (1) {
|
||||
if (starts_with_dot_dot_slash(url)) {
|
||||
result++;
|
||||
url += strlen("../");
|
||||
continue;
|
||||
}
|
||||
if (starts_with_dot_slash(url)) {
|
||||
url += strlen("./");
|
||||
continue;
|
||||
}
|
||||
*out = url;
|
||||
return result;
|
||||
}
|
||||
}
|
||||
/*
|
||||
* Check whether a transport is implemented by git-remote-curl.
|
||||
*
|
||||
* If it is, returns 1 and writes the URL that would be passed to
|
||||
* git-remote-curl to the "out" parameter.
|
||||
*
|
||||
* Otherwise, returns 0 and leaves "out" untouched.
|
||||
*
|
||||
* Examples:
|
||||
* http::https://example.com/repo.git -> 1, https://example.com/repo.git
|
||||
* https://example.com/repo.git -> 1, https://example.com/repo.git
|
||||
* git://example.com/repo.git -> 0
|
||||
*
|
||||
* This is for use in checking for previously exploitable bugs that
|
||||
* required a submodule URL to be passed to git-remote-curl.
|
||||
*/
|
||||
static int url_to_curl_url(const char *url, const char **out)
|
||||
{
|
||||
/*
|
||||
* We don't need to check for case-aliases, "http.exe", and so
|
||||
* on because in the default configuration, is_transport_allowed
|
||||
* prevents URLs with those schemes from being cloned
|
||||
* automatically.
|
||||
*/
|
||||
if (skip_prefix(url, "http::", out) ||
|
||||
skip_prefix(url, "https::", out) ||
|
||||
skip_prefix(url, "ftp::", out) ||
|
||||
skip_prefix(url, "ftps::", out))
|
||||
return 1;
|
||||
if (starts_with(url, "http://") ||
|
||||
starts_with(url, "https://") ||
|
||||
starts_with(url, "ftp://") ||
|
||||
starts_with(url, "ftps://")) {
|
||||
*out = url;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int check_submodule_url(const char *url)
|
||||
{
|
||||
const char *curl_url;
|
||||
|
||||
if (looks_like_command_line_option(url))
|
||||
return -1;
|
||||
|
||||
if (submodule_url_is_relative(url)) {
|
||||
char *decoded;
|
||||
const char *next;
|
||||
int has_nl;
|
||||
|
||||
/*
|
||||
* This could be appended to an http URL and url-decoded;
|
||||
* check for malicious characters.
|
||||
*/
|
||||
decoded = url_decode(url);
|
||||
has_nl = !!strchr(decoded, '\n');
|
||||
|
||||
free(decoded);
|
||||
if (has_nl)
|
||||
return -1;
|
||||
|
||||
/*
|
||||
* URLs which escape their root via "../" can overwrite
|
||||
* the host field and previous components, resolving to
|
||||
* URLs like https::example.com/submodule.git and
|
||||
* https:///example.com/submodule.git that were
|
||||
* susceptible to CVE-2020-11008.
|
||||
*/
|
||||
if (count_leading_dotdots(url, &next) > 0 &&
|
||||
(*next == ':' || *next == '/'))
|
||||
return -1;
|
||||
}
|
||||
|
||||
else if (url_to_curl_url(url, &curl_url)) {
|
||||
struct credential c = CREDENTIAL_INIT;
|
||||
int ret = 0;
|
||||
if (credential_from_url_gently(&c, curl_url, 1) ||
|
||||
!*c.host)
|
||||
ret = -1;
|
||||
credential_clear(&c);
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct fsck_gitmodules_data {
|
||||
struct object *obj;
|
||||
const struct object_id *oid;
|
||||
struct fsck_options *options;
|
||||
int ret;
|
||||
};
|
||||
|
|
@ -949,38 +1074,47 @@ static int fsck_gitmodules_fn(const char *var, const char *value, void *vdata)
|
|||
|
||||
name = xmemdupz(subsection, subsection_len);
|
||||
if (check_submodule_name(name) < 0)
|
||||
data->ret |= report(data->options, data->obj,
|
||||
data->ret |= report(data->options,
|
||||
data->oid, OBJ_BLOB,
|
||||
FSCK_MSG_GITMODULES_NAME,
|
||||
"disallowed submodule name: %s",
|
||||
name);
|
||||
if (!strcmp(key, "url") && value &&
|
||||
looks_like_command_line_option(value))
|
||||
data->ret |= report(data->options, data->obj,
|
||||
check_submodule_url(value) < 0)
|
||||
data->ret |= report(data->options,
|
||||
data->oid, OBJ_BLOB,
|
||||
FSCK_MSG_GITMODULES_URL,
|
||||
"disallowed submodule url: %s",
|
||||
value);
|
||||
if (!strcmp(key, "path") && value &&
|
||||
looks_like_command_line_option(value))
|
||||
data->ret |= report(data->options, data->obj,
|
||||
data->ret |= report(data->options,
|
||||
data->oid, OBJ_BLOB,
|
||||
FSCK_MSG_GITMODULES_PATH,
|
||||
"disallowed submodule path: %s",
|
||||
value);
|
||||
if (!strcmp(key, "update") && value &&
|
||||
parse_submodule_update_type(value) == SM_UPDATE_COMMAND)
|
||||
data->ret |= report(data->options, data->oid, OBJ_BLOB,
|
||||
FSCK_MSG_GITMODULES_UPDATE,
|
||||
"disallowed submodule update setting: %s",
|
||||
value);
|
||||
free(name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fsck_blob(struct blob *blob, const char *buf,
|
||||
static int fsck_blob(const struct object_id *oid, const char *buf,
|
||||
unsigned long size, struct fsck_options *options)
|
||||
{
|
||||
struct fsck_gitmodules_data data;
|
||||
struct config_options config_opts = { 0 };
|
||||
|
||||
if (!oidset_contains(&gitmodules_found, &blob->object.oid))
|
||||
if (!oidset_contains(&gitmodules_found, oid))
|
||||
return 0;
|
||||
oidset_insert(&gitmodules_done, &blob->object.oid);
|
||||
oidset_insert(&gitmodules_done, oid);
|
||||
|
||||
if (object_on_skiplist(options, &blob->object))
|
||||
if (object_on_skiplist(options, oid))
|
||||
return 0;
|
||||
|
||||
if (!buf) {
|
||||
|
|
@ -989,18 +1123,18 @@ static int fsck_blob(struct blob *blob, const char *buf,
|
|||
* blob too gigantic to load into memory. Let's just consider
|
||||
* that an error.
|
||||
*/
|
||||
return report(options, &blob->object,
|
||||
return report(options, oid, OBJ_BLOB,
|
||||
FSCK_MSG_GITMODULES_LARGE,
|
||||
".gitmodules too large to parse");
|
||||
}
|
||||
|
||||
data.obj = &blob->object;
|
||||
data.oid = oid;
|
||||
data.options = options;
|
||||
data.ret = 0;
|
||||
config_opts.error_action = CONFIG_ERROR_SILENT;
|
||||
if (git_config_from_mem(fsck_gitmodules_fn, CONFIG_ORIGIN_BLOB,
|
||||
".gitmodules", buf, size, &data, &config_opts))
|
||||
data.ret |= report(options, &blob->object,
|
||||
data.ret |= report(options, oid, OBJ_BLOB,
|
||||
FSCK_MSG_GITMODULES_PARSE,
|
||||
"could not parse gitmodules blob");
|
||||
|
||||
|
|
@ -1011,31 +1145,33 @@ int fsck_object(struct object *obj, void *data, unsigned long size,
|
|||
struct fsck_options *options)
|
||||
{
|
||||
if (!obj)
|
||||
return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck");
|
||||
return report(options, NULL, OBJ_NONE, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck");
|
||||
|
||||
if (obj->type == OBJ_BLOB)
|
||||
return fsck_blob((struct blob *)obj, data, size, options);
|
||||
return fsck_blob(&obj->oid, data, size, options);
|
||||
if (obj->type == OBJ_TREE)
|
||||
return fsck_tree((struct tree *) obj, options);
|
||||
return fsck_tree(&obj->oid, data, size, options);
|
||||
if (obj->type == OBJ_COMMIT)
|
||||
return fsck_commit((struct commit *) obj, (const char *) data,
|
||||
size, options);
|
||||
return fsck_commit(&obj->oid, data, size, options);
|
||||
if (obj->type == OBJ_TAG)
|
||||
return fsck_tag((struct tag *) obj, (const char *) data,
|
||||
size, options);
|
||||
return fsck_tag(&obj->oid, data, size, options);
|
||||
|
||||
return report(options, obj, FSCK_MSG_UNKNOWN_TYPE, "unknown type '%d' (internal fsck error)",
|
||||
obj->type);
|
||||
return report(options, &obj->oid, obj->type,
|
||||
FSCK_MSG_UNKNOWN_TYPE,
|
||||
"unknown type '%d' (internal fsck error)",
|
||||
obj->type);
|
||||
}
|
||||
|
||||
int fsck_error_function(struct fsck_options *o,
|
||||
struct object *obj, int msg_type, const char *message)
|
||||
const struct object_id *oid,
|
||||
enum object_type object_type,
|
||||
int msg_type, const char *message)
|
||||
{
|
||||
if (msg_type == FSCK_WARN) {
|
||||
warning("object %s: %s", describe_object(o, obj), message);
|
||||
warning("object %s: %s", fsck_describe_object(o, oid), message);
|
||||
return 0;
|
||||
}
|
||||
error("object %s: %s", describe_object(o, obj), message);
|
||||
error("object %s: %s", fsck_describe_object(o, oid), message);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
|
@ -1047,7 +1183,6 @@ int fsck_finish(struct fsck_options *options)
|
|||
|
||||
oidset_iter_init(&gitmodules_found, &iter);
|
||||
while ((oid = oidset_iter_next(&iter))) {
|
||||
struct blob *blob;
|
||||
enum object_type type;
|
||||
unsigned long size;
|
||||
char *buf;
|
||||
|
|
@ -1055,29 +1190,22 @@ int fsck_finish(struct fsck_options *options)
|
|||
if (oidset_contains(&gitmodules_done, oid))
|
||||
continue;
|
||||
|
||||
blob = lookup_blob(the_repository, oid);
|
||||
if (!blob) {
|
||||
struct object *obj = lookup_unknown_object(oid);
|
||||
ret |= report(options, obj,
|
||||
FSCK_MSG_GITMODULES_BLOB,
|
||||
"non-blob found at .gitmodules");
|
||||
continue;
|
||||
}
|
||||
|
||||
buf = read_object_file(oid, &type, &size);
|
||||
if (!buf) {
|
||||
if (is_promisor_object(&blob->object.oid))
|
||||
if (is_promisor_object(oid))
|
||||
continue;
|
||||
ret |= report(options, &blob->object,
|
||||
ret |= report(options,
|
||||
oid, OBJ_BLOB,
|
||||
FSCK_MSG_GITMODULES_MISSING,
|
||||
"unable to read .gitmodules blob");
|
||||
continue;
|
||||
}
|
||||
|
||||
if (type == OBJ_BLOB)
|
||||
ret |= fsck_blob(blob, buf, size, options);
|
||||
ret |= fsck_blob(oid, buf, size, options);
|
||||
else
|
||||
ret |= report(options, &blob->object,
|
||||
ret |= report(options,
|
||||
oid, type,
|
||||
FSCK_MSG_GITMODULES_BLOB,
|
||||
"non-blob found at .gitmodules");
|
||||
free(buf);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue