diff options
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | cache.h | 1 | ||||
| -rw-r--r-- | fsck.c | 91 | ||||
| -rw-r--r-- | fsck.h | 23 |
4 files changed, 117 insertions, 2 deletions
@@ -297,7 +297,7 @@ LIB_H = \ run-command.h strbuf.h tag.h tree.h git-compat-util.h revision.h \ tree-walk.h log-tree.h dir.h path-list.h unpack-trees.h builtin.h \ utf8.h reflog-walk.h patch-ids.h attr.h decorate.h progress.h \ - mailmap.h remote.h parse-options.h transport.h diffcore.h hash.h + mailmap.h remote.h parse-options.h transport.h diffcore.h hash.h fsck.h DIFF_OBJS = \ diff.o diff-lib.o diffcore-break.o diffcore-order.o \ @@ -320,7 +320,7 @@ LIB_OBJS = \ alloc.o merge-file.o path-list.o help.o unpack-trees.o $(DIFF_OBJS) \ color.o wt-status.o archive-zip.o archive-tar.o shallow.o utf8.o \ convert.o attr.o decorate.o progress.o mailmap.o symlinks.o remote.o \ - transport.o bundle.o walker.o parse-options.o ws.o archive.o + transport.o bundle.o walker.o parse-options.o ws.o archive.o fsck.o BUILTIN_OBJS = \ builtin-add.o \ @@ -189,6 +189,7 @@ enum object_type { /* 5 for future expansion */ OBJ_OFS_DELTA = 6, OBJ_REF_DELTA = 7, + OBJ_ANY, OBJ_MAX, }; @@ -0,0 +1,91 @@ +#include "cache.h" +#include "object.h" +#include "blob.h" +#include "tree.h" +#include "tree-walk.h" +#include "commit.h" +#include "tag.h" +#include "fsck.h" + +static int fsck_walk_tree(struct tree *tree, fsck_walk_func walk, void *data) +{ + struct tree_desc desc; + struct name_entry entry; + int res = 0; + + if (parse_tree(tree)) + return -1; + + init_tree_desc(&desc, tree->buffer, tree->size); + while (tree_entry(&desc, &entry)) { + int result; + + if (S_ISGITLINK(entry.mode)) + continue; + if (S_ISDIR(entry.mode)) + result = walk(&lookup_tree(entry.sha1)->object, OBJ_TREE, data); + else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode)) + result = walk(&lookup_blob(entry.sha1)->object, OBJ_BLOB, data); + else { + result = error("in tree %s: entry %s has bad mode %.6o\n", + sha1_to_hex(tree->object.sha1), entry.path, entry.mode); + } + if (result < 0) + return result; + if (!res) + res = result; + } + return res; +} + +static int fsck_walk_commit(struct commit *commit, fsck_walk_func walk, void *data) +{ + struct commit_list *parents; + int res; + int result; + + if (parse_commit(commit)) + return -1; + + result = walk((struct object *)commit->tree, OBJ_TREE, data); + if (result < 0) + return result; + res = result; + + parents = commit->parents; + while (parents) { + result = walk((struct object *)parents->item, OBJ_COMMIT, data); + if (result < 0) + return result; + if (!res) + res = result; + parents = parents->next; + } + return res; +} + +static int fsck_walk_tag(struct tag *tag, fsck_walk_func walk, void *data) +{ + if (parse_tag(tag)) + return -1; + return walk(tag->tagged, OBJ_ANY, data); +} + +int fsck_walk(struct object *obj, fsck_walk_func walk, void *data) +{ + if (!obj) + return -1; + switch (obj->type) { + case OBJ_BLOB: + return 0; + case OBJ_TREE: + return fsck_walk_tree((struct tree *)obj, walk, data); + case OBJ_COMMIT: + return fsck_walk_commit((struct commit *)obj, walk, data); + case OBJ_TAG: + return fsck_walk_tag((struct tag *)obj, walk, data); + default: + error("Unknown object type for %s", sha1_to_hex(obj->sha1)); + return -1; + } +} @@ -0,0 +1,23 @@ +#ifndef GIT_FSCK_H +#define GIT_FSCK_H + +/* + * callback function for fsck_walk + * type is the expected type of the object or OBJ_ANY + * the return value is: + * 0 everything OK + * <0 error signaled and abort + * >0 error signaled and do not abort + */ +typedef int (*fsck_walk_func)(struct object *obj, int type, void *data); + +/* descend in all linked child objects + * the return value is: + * -1 error in processing the object + * <0 return value of the callback, which lead to an abort + * >0 return value of the first sigaled error >0 (in the case of no other errors) + * 0 everything OK + */ +int fsck_walk(struct object *obj, fsck_walk_func walk, void *data); + +#endif |