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Merge branch 'ab/commit-graph-fixes'
Code cleanup with more careful error checking before using data read from the commit-graph file. * ab/commit-graph-fixes: commit-graph: improve & i18n error messages commit-graph write: don't die if the existing graph is corrupt commit-graph verify: detect inability to read the graph commit-graph: don't pass filename to load_commit_graph_one_fd_st() commit-graph: don't early exit(1) on e.g. "git status" commit-graph: fix segfault on e.g. "git status" commit-graph tests: test a graph that's too small commit-graph tests: split up corrupt_graph_and_verify()
This commit is contained in:
commit
a5e4be2f68
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@ -42,6 +42,9 @@ static int graph_verify(int argc, const char **argv)
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{
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{
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struct commit_graph *graph = NULL;
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struct commit_graph *graph = NULL;
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char *graph_name;
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char *graph_name;
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int open_ok;
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int fd;
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struct stat st;
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static struct option builtin_commit_graph_verify_options[] = {
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static struct option builtin_commit_graph_verify_options[] = {
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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@ -58,11 +61,16 @@ static int graph_verify(int argc, const char **argv)
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opts.obj_dir = get_object_directory();
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opts.obj_dir = get_object_directory();
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graph_name = get_commit_graph_filename(opts.obj_dir);
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graph_name = get_commit_graph_filename(opts.obj_dir);
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graph = load_commit_graph_one(graph_name);
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open_ok = open_commit_graph(graph_name, &fd, &st);
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if (!open_ok && errno == ENOENT)
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return 0;
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if (!open_ok)
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die_errno(_("Could not open commit-graph '%s'"), graph_name);
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graph = load_commit_graph_one_fd_st(fd, &st);
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FREE_AND_NULL(graph_name);
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FREE_AND_NULL(graph_name);
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if (!graph)
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if (!graph)
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return 0;
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return 1;
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UNLEAK(graph);
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UNLEAK(graph);
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return verify_commit_graph(the_repository, graph);
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return verify_commit_graph(the_repository, graph);
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@ -72,6 +80,9 @@ static int graph_read(int argc, const char **argv)
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{
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{
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struct commit_graph *graph = NULL;
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struct commit_graph *graph = NULL;
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char *graph_name;
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char *graph_name;
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int open_ok;
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int fd;
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struct stat st;
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static struct option builtin_commit_graph_read_options[] = {
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static struct option builtin_commit_graph_read_options[] = {
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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OPT_STRING(0, "object-dir", &opts.obj_dir,
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@ -88,10 +99,14 @@ static int graph_read(int argc, const char **argv)
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opts.obj_dir = get_object_directory();
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opts.obj_dir = get_object_directory();
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graph_name = get_commit_graph_filename(opts.obj_dir);
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graph_name = get_commit_graph_filename(opts.obj_dir);
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graph = load_commit_graph_one(graph_name);
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open_ok = open_commit_graph(graph_name, &fd, &st);
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if (!open_ok)
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die_errno(_("Could not open commit-graph '%s'"), graph_name);
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graph = load_commit_graph_one_fd_st(fd, &st);
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if (!graph)
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if (!graph)
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die("graph file %s does not exist", graph_name);
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return 1;
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FREE_AND_NULL(graph_name);
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FREE_AND_NULL(graph_name);
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132
commit-graph.c
132
commit-graph.c
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@ -80,25 +80,30 @@ static int commit_graph_compatible(struct repository *r)
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return 1;
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return 1;
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}
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}
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struct commit_graph *load_commit_graph_one(const char *graph_file)
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int open_commit_graph(const char *graph_file, int *fd, struct stat *st)
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{
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*fd = git_open(graph_file);
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if (*fd < 0)
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return 0;
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if (fstat(*fd, st)) {
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close(*fd);
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return 0;
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}
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return 1;
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}
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struct commit_graph *load_commit_graph_one_fd_st(int fd, struct stat *st)
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{
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{
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void *graph_map;
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void *graph_map;
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size_t graph_size;
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size_t graph_size;
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struct stat st;
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struct commit_graph *ret;
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struct commit_graph *ret;
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int fd = git_open(graph_file);
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if (fd < 0)
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graph_size = xsize_t(st->st_size);
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return NULL;
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if (fstat(fd, &st)) {
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close(fd);
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return NULL;
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}
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graph_size = xsize_t(st.st_size);
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if (graph_size < GRAPH_MIN_SIZE) {
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if (graph_size < GRAPH_MIN_SIZE) {
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close(fd);
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close(fd);
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die(_("graph file %s is too small"), graph_file);
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error(_("commit-graph file is too small"));
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return NULL;
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}
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}
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graph_map = xmmap(NULL, graph_size, PROT_READ, MAP_PRIVATE, fd, 0);
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graph_map = xmmap(NULL, graph_size, PROT_READ, MAP_PRIVATE, fd, 0);
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ret = parse_commit_graph(graph_map, fd, graph_size);
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ret = parse_commit_graph(graph_map, fd, graph_size);
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@ -106,12 +111,41 @@ struct commit_graph *load_commit_graph_one(const char *graph_file)
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if (!ret) {
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if (!ret) {
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munmap(graph_map, graph_size);
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munmap(graph_map, graph_size);
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close(fd);
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close(fd);
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exit(1);
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}
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}
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return ret;
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return ret;
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}
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}
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static int verify_commit_graph_lite(struct commit_graph *g)
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{
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/*
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* Basic validation shared between parse_commit_graph()
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* which'll be called every time the graph is used, and the
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* much more expensive verify_commit_graph() used by
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* "commit-graph verify".
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*
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* There should only be very basic checks here to ensure that
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* we don't e.g. segfault in fill_commit_in_graph(), but
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* because this is a very hot codepath nothing that e.g. loops
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* over g->num_commits, or runs a checksum on the commit-graph
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* itself.
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*/
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if (!g->chunk_oid_fanout) {
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error("commit-graph is missing the OID Fanout chunk");
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return 1;
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}
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if (!g->chunk_oid_lookup) {
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error("commit-graph is missing the OID Lookup chunk");
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return 1;
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}
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if (!g->chunk_commit_data) {
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error("commit-graph is missing the Commit Data chunk");
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return 1;
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}
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return 0;
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}
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struct commit_graph *parse_commit_graph(void *graph_map, int fd,
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struct commit_graph *parse_commit_graph(void *graph_map, int fd,
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size_t graph_size)
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size_t graph_size)
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{
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{
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@ -133,21 +167,21 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
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graph_signature = get_be32(data);
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graph_signature = get_be32(data);
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if (graph_signature != GRAPH_SIGNATURE) {
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if (graph_signature != GRAPH_SIGNATURE) {
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error(_("graph signature %X does not match signature %X"),
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error(_("commit-graph signature %X does not match signature %X"),
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graph_signature, GRAPH_SIGNATURE);
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graph_signature, GRAPH_SIGNATURE);
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return NULL;
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return NULL;
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}
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}
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graph_version = *(unsigned char*)(data + 4);
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graph_version = *(unsigned char*)(data + 4);
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if (graph_version != GRAPH_VERSION) {
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if (graph_version != GRAPH_VERSION) {
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error(_("graph version %X does not match version %X"),
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error(_("commit-graph version %X does not match version %X"),
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graph_version, GRAPH_VERSION);
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graph_version, GRAPH_VERSION);
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return NULL;
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return NULL;
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}
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}
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hash_version = *(unsigned char*)(data + 5);
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hash_version = *(unsigned char*)(data + 5);
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if (hash_version != oid_version()) {
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if (hash_version != oid_version()) {
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error(_("hash version %X does not match version %X"),
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error(_("commit-graph hash version %X does not match version %X"),
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hash_version, oid_version());
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hash_version, oid_version());
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return NULL;
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return NULL;
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}
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}
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@ -170,7 +204,7 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
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if (data + graph_size - chunk_lookup <
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if (data + graph_size - chunk_lookup <
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GRAPH_CHUNKLOOKUP_WIDTH) {
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GRAPH_CHUNKLOOKUP_WIDTH) {
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error(_("chunk lookup table entry missing; graph file may be incomplete"));
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error(_("commit-graph chunk lookup table entry missing; file may be incomplete"));
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free(graph);
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free(graph);
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return NULL;
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return NULL;
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}
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}
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@ -181,7 +215,7 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
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chunk_lookup += GRAPH_CHUNKLOOKUP_WIDTH;
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chunk_lookup += GRAPH_CHUNKLOOKUP_WIDTH;
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if (chunk_offset > graph_size - the_hash_algo->rawsz) {
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if (chunk_offset > graph_size - the_hash_algo->rawsz) {
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error(_("improper chunk offset %08x%08x"), (uint32_t)(chunk_offset >> 32),
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error(_("commit-graph improper chunk offset %08x%08x"), (uint32_t)(chunk_offset >> 32),
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(uint32_t)chunk_offset);
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(uint32_t)chunk_offset);
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free(graph);
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free(graph);
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return NULL;
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return NULL;
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@ -218,7 +252,7 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
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}
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}
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if (chunk_repeated) {
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if (chunk_repeated) {
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error(_("chunk id %08x appears multiple times"), chunk_id);
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error(_("commit-graph chunk id %08x appears multiple times"), chunk_id);
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free(graph);
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free(graph);
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return NULL;
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return NULL;
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}
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}
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@ -233,9 +267,25 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
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last_chunk_offset = chunk_offset;
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last_chunk_offset = chunk_offset;
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}
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}
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if (verify_commit_graph_lite(graph))
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return NULL;
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return graph;
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return graph;
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}
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}
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static struct commit_graph *load_commit_graph_one(const char *graph_file)
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{
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struct stat st;
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int fd;
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int open_ok = open_commit_graph(graph_file, &fd, &st);
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if (!open_ok)
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return NULL;
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return load_commit_graph_one_fd_st(fd, &st);
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}
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static void prepare_commit_graph_one(struct repository *r, const char *obj_dir)
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static void prepare_commit_graph_one(struct repository *r, const char *obj_dir)
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{
|
{
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char *graph_name;
|
char *graph_name;
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@ -261,6 +311,10 @@ static int prepare_commit_graph(struct repository *r)
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struct object_directory *odb;
|
struct object_directory *odb;
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int config_value;
|
int config_value;
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|
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|
if (git_env_bool(GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD, 0))
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|
die("dying as requested by the '%s' variable on commit-graph load!",
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|
GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD);
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|
|
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if (r->objects->commit_graph_attempted)
|
if (r->objects->commit_graph_attempted)
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return !!r->objects->commit_graph;
|
return !!r->objects->commit_graph;
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r->objects->commit_graph_attempted = 1;
|
r->objects->commit_graph_attempted = 1;
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||||||
|
@ -525,7 +579,7 @@ static void write_graph_chunk_data(struct hashfile *f, int hash_len,
|
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uint32_t packedDate[2];
|
uint32_t packedDate[2];
|
||||||
display_progress(progress, ++*progress_cnt);
|
display_progress(progress, ++*progress_cnt);
|
||||||
|
|
||||||
parse_commit(*list);
|
parse_commit_no_graph(*list);
|
||||||
hashwrite(f, get_commit_tree_oid(*list)->hash, hash_len);
|
hashwrite(f, get_commit_tree_oid(*list)->hash, hash_len);
|
||||||
|
|
||||||
parent = (*list)->parents;
|
parent = (*list)->parents;
|
||||||
|
@ -722,7 +776,7 @@ static void close_reachable(struct packed_oid_list *oids, int report_progress)
|
||||||
display_progress(progress, i + 1);
|
display_progress(progress, i + 1);
|
||||||
commit = lookup_commit(the_repository, &oids->list[i]);
|
commit = lookup_commit(the_repository, &oids->list[i]);
|
||||||
|
|
||||||
if (commit && !parse_commit(commit))
|
if (commit && !parse_commit_no_graph(commit))
|
||||||
add_missing_parents(oids, commit);
|
add_missing_parents(oids, commit);
|
||||||
}
|
}
|
||||||
stop_progress(&progress);
|
stop_progress(&progress);
|
||||||
|
@ -971,7 +1025,7 @@ void write_commit_graph(const char *obj_dir,
|
||||||
continue;
|
continue;
|
||||||
|
|
||||||
commits.list[commits.nr] = lookup_commit(the_repository, &oids.list[i]);
|
commits.list[commits.nr] = lookup_commit(the_repository, &oids.list[i]);
|
||||||
parse_commit(commits.list[commits.nr]);
|
parse_commit_no_graph(commits.list[commits.nr]);
|
||||||
|
|
||||||
for (parent = commits.list[commits.nr]->parents;
|
for (parent = commits.list[commits.nr]->parents;
|
||||||
parent; parent = parent->next)
|
parent; parent = parent->next)
|
||||||
|
@ -1089,15 +1143,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
verify_commit_graph_error = 0;
|
verify_commit_graph_error = verify_commit_graph_lite(g);
|
||||||
|
|
||||||
if (!g->chunk_oid_fanout)
|
|
||||||
graph_report("commit-graph is missing the OID Fanout chunk");
|
|
||||||
if (!g->chunk_oid_lookup)
|
|
||||||
graph_report("commit-graph is missing the OID Lookup chunk");
|
|
||||||
if (!g->chunk_commit_data)
|
|
||||||
graph_report("commit-graph is missing the Commit Data chunk");
|
|
||||||
|
|
||||||
if (verify_commit_graph_error)
|
if (verify_commit_graph_error)
|
||||||
return verify_commit_graph_error;
|
return verify_commit_graph_error;
|
||||||
|
|
||||||
|
@ -1116,7 +1162,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
hashcpy(cur_oid.hash, g->chunk_oid_lookup + g->hash_len * i);
|
hashcpy(cur_oid.hash, g->chunk_oid_lookup + g->hash_len * i);
|
||||||
|
|
||||||
if (i && oidcmp(&prev_oid, &cur_oid) >= 0)
|
if (i && oidcmp(&prev_oid, &cur_oid) >= 0)
|
||||||
graph_report("commit-graph has incorrect OID order: %s then %s",
|
graph_report(_("commit-graph has incorrect OID order: %s then %s"),
|
||||||
oid_to_hex(&prev_oid),
|
oid_to_hex(&prev_oid),
|
||||||
oid_to_hex(&cur_oid));
|
oid_to_hex(&cur_oid));
|
||||||
|
|
||||||
|
@ -1126,14 +1172,14 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos);
|
uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos);
|
||||||
|
|
||||||
if (i != fanout_value)
|
if (i != fanout_value)
|
||||||
graph_report("commit-graph has incorrect fanout value: fanout[%d] = %u != %u",
|
graph_report(_("commit-graph has incorrect fanout value: fanout[%d] = %u != %u"),
|
||||||
cur_fanout_pos, fanout_value, i);
|
cur_fanout_pos, fanout_value, i);
|
||||||
cur_fanout_pos++;
|
cur_fanout_pos++;
|
||||||
}
|
}
|
||||||
|
|
||||||
graph_commit = lookup_commit(r, &cur_oid);
|
graph_commit = lookup_commit(r, &cur_oid);
|
||||||
if (!parse_commit_in_graph_one(r, g, graph_commit))
|
if (!parse_commit_in_graph_one(r, g, graph_commit))
|
||||||
graph_report("failed to parse %s from commit-graph",
|
graph_report(_("failed to parse commit %s from commit-graph"),
|
||||||
oid_to_hex(&cur_oid));
|
oid_to_hex(&cur_oid));
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -1141,7 +1187,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos);
|
uint32_t fanout_value = get_be32(g->chunk_oid_fanout + cur_fanout_pos);
|
||||||
|
|
||||||
if (g->num_commits != fanout_value)
|
if (g->num_commits != fanout_value)
|
||||||
graph_report("commit-graph has incorrect fanout value: fanout[%d] = %u != %u",
|
graph_report(_("commit-graph has incorrect fanout value: fanout[%d] = %u != %u"),
|
||||||
cur_fanout_pos, fanout_value, i);
|
cur_fanout_pos, fanout_value, i);
|
||||||
|
|
||||||
cur_fanout_pos++;
|
cur_fanout_pos++;
|
||||||
|
@ -1163,14 +1209,14 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
graph_commit = lookup_commit(r, &cur_oid);
|
graph_commit = lookup_commit(r, &cur_oid);
|
||||||
odb_commit = (struct commit *)create_object(r, cur_oid.hash, alloc_commit_node(r));
|
odb_commit = (struct commit *)create_object(r, cur_oid.hash, alloc_commit_node(r));
|
||||||
if (parse_commit_internal(odb_commit, 0, 0)) {
|
if (parse_commit_internal(odb_commit, 0, 0)) {
|
||||||
graph_report("failed to parse %s from object database",
|
graph_report(_("failed to parse commit %s from object database for commit-graph"),
|
||||||
oid_to_hex(&cur_oid));
|
oid_to_hex(&cur_oid));
|
||||||
continue;
|
continue;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (!oideq(&get_commit_tree_in_graph_one(r, g, graph_commit)->object.oid,
|
if (!oideq(&get_commit_tree_in_graph_one(r, g, graph_commit)->object.oid,
|
||||||
get_commit_tree_oid(odb_commit)))
|
get_commit_tree_oid(odb_commit)))
|
||||||
graph_report("root tree OID for commit %s in commit-graph is %s != %s",
|
graph_report(_("root tree OID for commit %s in commit-graph is %s != %s"),
|
||||||
oid_to_hex(&cur_oid),
|
oid_to_hex(&cur_oid),
|
||||||
oid_to_hex(get_commit_tree_oid(graph_commit)),
|
oid_to_hex(get_commit_tree_oid(graph_commit)),
|
||||||
oid_to_hex(get_commit_tree_oid(odb_commit)));
|
oid_to_hex(get_commit_tree_oid(odb_commit)));
|
||||||
|
@ -1180,13 +1226,13 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
|
|
||||||
while (graph_parents) {
|
while (graph_parents) {
|
||||||
if (odb_parents == NULL) {
|
if (odb_parents == NULL) {
|
||||||
graph_report("commit-graph parent list for commit %s is too long",
|
graph_report(_("commit-graph parent list for commit %s is too long"),
|
||||||
oid_to_hex(&cur_oid));
|
oid_to_hex(&cur_oid));
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (!oideq(&graph_parents->item->object.oid, &odb_parents->item->object.oid))
|
if (!oideq(&graph_parents->item->object.oid, &odb_parents->item->object.oid))
|
||||||
graph_report("commit-graph parent for %s is %s != %s",
|
graph_report(_("commit-graph parent for %s is %s != %s"),
|
||||||
oid_to_hex(&cur_oid),
|
oid_to_hex(&cur_oid),
|
||||||
oid_to_hex(&graph_parents->item->object.oid),
|
oid_to_hex(&graph_parents->item->object.oid),
|
||||||
oid_to_hex(&odb_parents->item->object.oid));
|
oid_to_hex(&odb_parents->item->object.oid));
|
||||||
|
@ -1199,16 +1245,16 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
}
|
}
|
||||||
|
|
||||||
if (odb_parents != NULL)
|
if (odb_parents != NULL)
|
||||||
graph_report("commit-graph parent list for commit %s terminates early",
|
graph_report(_("commit-graph parent list for commit %s terminates early"),
|
||||||
oid_to_hex(&cur_oid));
|
oid_to_hex(&cur_oid));
|
||||||
|
|
||||||
if (!graph_commit->generation) {
|
if (!graph_commit->generation) {
|
||||||
if (generation_zero == GENERATION_NUMBER_EXISTS)
|
if (generation_zero == GENERATION_NUMBER_EXISTS)
|
||||||
graph_report("commit-graph has generation number zero for commit %s, but non-zero elsewhere",
|
graph_report(_("commit-graph has generation number zero for commit %s, but non-zero elsewhere"),
|
||||||
oid_to_hex(&cur_oid));
|
oid_to_hex(&cur_oid));
|
||||||
generation_zero = GENERATION_ZERO_EXISTS;
|
generation_zero = GENERATION_ZERO_EXISTS;
|
||||||
} else if (generation_zero == GENERATION_ZERO_EXISTS)
|
} else if (generation_zero == GENERATION_ZERO_EXISTS)
|
||||||
graph_report("commit-graph has non-zero generation number for commit %s, but zero elsewhere",
|
graph_report(_("commit-graph has non-zero generation number for commit %s, but zero elsewhere"),
|
||||||
oid_to_hex(&cur_oid));
|
oid_to_hex(&cur_oid));
|
||||||
|
|
||||||
if (generation_zero == GENERATION_ZERO_EXISTS)
|
if (generation_zero == GENERATION_ZERO_EXISTS)
|
||||||
|
@ -1223,13 +1269,13 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
|
||||||
max_generation--;
|
max_generation--;
|
||||||
|
|
||||||
if (graph_commit->generation != max_generation + 1)
|
if (graph_commit->generation != max_generation + 1)
|
||||||
graph_report("commit-graph generation for commit %s is %u != %u",
|
graph_report(_("commit-graph generation for commit %s is %u != %u"),
|
||||||
oid_to_hex(&cur_oid),
|
oid_to_hex(&cur_oid),
|
||||||
graph_commit->generation,
|
graph_commit->generation,
|
||||||
max_generation + 1);
|
max_generation + 1);
|
||||||
|
|
||||||
if (graph_commit->date != odb_commit->date)
|
if (graph_commit->date != odb_commit->date)
|
||||||
graph_report("commit date for commit %s in commit-graph is %"PRItime" != %"PRItime,
|
graph_report(_("commit date for commit %s in commit-graph is %"PRItime" != %"PRItime),
|
||||||
oid_to_hex(&cur_oid),
|
oid_to_hex(&cur_oid),
|
||||||
graph_commit->date,
|
graph_commit->date,
|
||||||
odb_commit->date);
|
odb_commit->date);
|
||||||
|
|
|
@ -7,10 +7,12 @@
|
||||||
#include "cache.h"
|
#include "cache.h"
|
||||||
|
|
||||||
#define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
|
#define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
|
||||||
|
#define GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD "GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD"
|
||||||
|
|
||||||
struct commit;
|
struct commit;
|
||||||
|
|
||||||
char *get_commit_graph_filename(const char *obj_dir);
|
char *get_commit_graph_filename(const char *obj_dir);
|
||||||
|
int open_commit_graph(const char *graph_file, int *fd, struct stat *st);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Given a commit struct, try to fill the commit struct info, including:
|
* Given a commit struct, try to fill the commit struct info, including:
|
||||||
|
@ -52,7 +54,7 @@ struct commit_graph {
|
||||||
const unsigned char *chunk_extra_edges;
|
const unsigned char *chunk_extra_edges;
|
||||||
};
|
};
|
||||||
|
|
||||||
struct commit_graph *load_commit_graph_one(const char *graph_file);
|
struct commit_graph *load_commit_graph_one_fd_st(int fd, struct stat *st);
|
||||||
|
|
||||||
struct commit_graph *parse_commit_graph(void *graph_map, int fd,
|
struct commit_graph *parse_commit_graph(void *graph_map, int fd,
|
||||||
size_t graph_size);
|
size_t graph_size);
|
||||||
|
|
6
commit.h
6
commit.h
|
@ -89,6 +89,12 @@ static inline int repo_parse_commit(struct repository *r, struct commit *item)
|
||||||
{
|
{
|
||||||
return repo_parse_commit_gently(r, item, 0);
|
return repo_parse_commit_gently(r, item, 0);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static inline int parse_commit_no_graph(struct commit *commit)
|
||||||
|
{
|
||||||
|
return repo_parse_commit_internal(the_repository, commit, 0, 0);
|
||||||
|
}
|
||||||
|
|
||||||
#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
|
#ifndef NO_THE_REPOSITORY_COMPATIBILITY_MACROS
|
||||||
#define parse_commit_internal(item, quiet, use) repo_parse_commit_internal(the_repository, item, quiet, use)
|
#define parse_commit_internal(item, quiet, use) repo_parse_commit_internal(the_repository, item, quiet, use)
|
||||||
#define parse_commit_gently(item, quiet) repo_parse_commit_gently(the_repository, item, quiet)
|
#define parse_commit_gently(item, quiet) repo_parse_commit_gently(the_repository, item, quiet)
|
||||||
|
|
|
@ -366,6 +366,26 @@ GRAPH_OCTOPUS_DATA_OFFSET=$(($GRAPH_COMMIT_DATA_OFFSET + \
|
||||||
GRAPH_BYTE_OCTOPUS=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4))
|
GRAPH_BYTE_OCTOPUS=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4))
|
||||||
GRAPH_BYTE_FOOTER=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4 * $NUM_OCTOPUS_EDGES))
|
GRAPH_BYTE_FOOTER=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4 * $NUM_OCTOPUS_EDGES))
|
||||||
|
|
||||||
|
corrupt_graph_setup() {
|
||||||
|
cd "$TRASH_DIRECTORY/full" &&
|
||||||
|
test_when_finished mv commit-graph-backup $objdir/info/commit-graph &&
|
||||||
|
cp $objdir/info/commit-graph commit-graph-backup
|
||||||
|
}
|
||||||
|
|
||||||
|
corrupt_graph_verify() {
|
||||||
|
grepstr=$1
|
||||||
|
test_must_fail git commit-graph verify 2>test_err &&
|
||||||
|
grep -v "^+" test_err >err &&
|
||||||
|
test_i18ngrep "$grepstr" err &&
|
||||||
|
if test "$2" != "no-copy"
|
||||||
|
then
|
||||||
|
cp $objdir/info/commit-graph commit-graph-pre-write-test
|
||||||
|
fi &&
|
||||||
|
git status --short &&
|
||||||
|
GIT_TEST_COMMIT_GRAPH_DIE_ON_LOAD=true git commit-graph write &&
|
||||||
|
git commit-graph verify
|
||||||
|
}
|
||||||
|
|
||||||
# usage: corrupt_graph_and_verify <position> <data> <string> [<zero_pos>]
|
# usage: corrupt_graph_and_verify <position> <data> <string> [<zero_pos>]
|
||||||
# Manipulates the commit-graph file at the position
|
# Manipulates the commit-graph file at the position
|
||||||
# by inserting the data, optionally zeroing the file
|
# by inserting the data, optionally zeroing the file
|
||||||
|
@ -376,19 +396,28 @@ corrupt_graph_and_verify() {
|
||||||
pos=$1
|
pos=$1
|
||||||
data="${2:-\0}"
|
data="${2:-\0}"
|
||||||
grepstr=$3
|
grepstr=$3
|
||||||
cd "$TRASH_DIRECTORY/full" &&
|
corrupt_graph_setup &&
|
||||||
orig_size=$(wc -c < $objdir/info/commit-graph) &&
|
orig_size=$(wc -c < $objdir/info/commit-graph) &&
|
||||||
zero_pos=${4:-${orig_size}} &&
|
zero_pos=${4:-${orig_size}} &&
|
||||||
test_when_finished mv commit-graph-backup $objdir/info/commit-graph &&
|
|
||||||
cp $objdir/info/commit-graph commit-graph-backup &&
|
|
||||||
printf "$data" | dd of="$objdir/info/commit-graph" bs=1 seek="$pos" conv=notrunc &&
|
printf "$data" | dd of="$objdir/info/commit-graph" bs=1 seek="$pos" conv=notrunc &&
|
||||||
dd of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" if=/dev/null &&
|
dd of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" if=/dev/null &&
|
||||||
generate_zero_bytes $(($orig_size - $zero_pos)) >>"$objdir/info/commit-graph" &&
|
generate_zero_bytes $(($orig_size - $zero_pos)) >>"$objdir/info/commit-graph" &&
|
||||||
test_must_fail git commit-graph verify 2>test_err &&
|
corrupt_graph_verify "$grepstr"
|
||||||
grep -v "^+" test_err >err &&
|
|
||||||
test_i18ngrep "$grepstr" err
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
test_expect_success POSIXPERM,SANITY 'detect permission problem' '
|
||||||
|
corrupt_graph_setup &&
|
||||||
|
chmod 000 $objdir/info/commit-graph &&
|
||||||
|
corrupt_graph_verify "Could not open" "no-copy"
|
||||||
|
'
|
||||||
|
|
||||||
|
test_expect_success 'detect too small' '
|
||||||
|
corrupt_graph_setup &&
|
||||||
|
echo "a small graph" >$objdir/info/commit-graph &&
|
||||||
|
corrupt_graph_verify "too small"
|
||||||
|
'
|
||||||
|
|
||||||
test_expect_success 'detect bad signature' '
|
test_expect_success 'detect bad signature' '
|
||||||
corrupt_graph_and_verify 0 "\0" \
|
corrupt_graph_and_verify 0 "\0" \
|
||||||
"graph signature"
|
"graph signature"
|
||||||
|
@ -499,6 +528,7 @@ test_expect_success 'git fsck (checks commit-graph)' '
|
||||||
git fsck &&
|
git fsck &&
|
||||||
corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \
|
corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \
|
||||||
"incorrect checksum" &&
|
"incorrect checksum" &&
|
||||||
|
cp commit-graph-pre-write-test $objdir/info/commit-graph &&
|
||||||
test_must_fail git fsck
|
test_must_fail git fsck
|
||||||
'
|
'
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue