diff options
| -rw-r--r-- | Documentation/git-commit-graph.txt | 6 | ||||
| -rw-r--r-- | builtin/commit-graph.c | 39 | ||||
| -rw-r--r-- | commit-graph.c | 23 | ||||
| -rw-r--r-- | commit-graph.h | 3 | ||||
| -rwxr-xr-x | t/t5318-commit-graph.sh | 10 |
5 files changed, 81 insertions, 0 deletions
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt index 4c97b555cc..a222cfab08 100644 --- a/Documentation/git-commit-graph.txt +++ b/Documentation/git-commit-graph.txt @@ -10,6 +10,7 @@ SYNOPSIS -------- [verse] 'git commit-graph read' [--object-dir <dir>] +'git commit-graph verify' [--object-dir <dir>] 'git commit-graph write' <options> [--object-dir <dir>] @@ -52,6 +53,11 @@ existing commit-graph file. Read a graph file given by the commit-graph file and output basic details about the graph file. Used for debugging purposes. +'verify':: + +Read the commit-graph file and verify its contents against the object +database. Used to check for corrupted data. + EXAMPLES -------- diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c index f0875b8bf3..9d108f43a9 100644 --- a/builtin/commit-graph.c +++ b/builtin/commit-graph.c @@ -3,15 +3,22 @@ #include "dir.h" #include "lockfile.h" #include "parse-options.h" +#include "repository.h" #include "commit-graph.h" static char const * const builtin_commit_graph_usage[] = { N_("git commit-graph [--object-dir <objdir>]"), N_("git commit-graph read [--object-dir <objdir>]"), + N_("git commit-graph verify [--object-dir <objdir>]"), N_("git commit-graph write [--object-dir <objdir>] [--append] [--stdin-packs|--stdin-commits]"), NULL }; +static const char * const builtin_commit_graph_verify_usage[] = { + N_("git commit-graph verify [--object-dir <objdir>]"), + NULL +}; + static const char * const builtin_commit_graph_read_usage[] = { N_("git commit-graph read [--object-dir <objdir>]"), NULL @@ -29,6 +36,36 @@ static struct opts_commit_graph { int append; } opts; + +static int graph_verify(int argc, const char **argv) +{ + struct commit_graph *graph = NULL; + char *graph_name; + + static struct option builtin_commit_graph_verify_options[] = { + OPT_STRING(0, "object-dir", &opts.obj_dir, + N_("dir"), + N_("The object directory to store the graph")), + OPT_END(), + }; + + argc = parse_options(argc, argv, NULL, + builtin_commit_graph_verify_options, + builtin_commit_graph_verify_usage, 0); + + if (!opts.obj_dir) + opts.obj_dir = get_object_directory(); + + graph_name = get_commit_graph_filename(opts.obj_dir); + graph = load_commit_graph_one(graph_name); + FREE_AND_NULL(graph_name); + + if (!graph) + return 0; + + return verify_commit_graph(the_repository, graph); +} + static int graph_read(int argc, const char **argv) { struct commit_graph *graph = NULL; @@ -165,6 +202,8 @@ int cmd_commit_graph(int argc, const char **argv, const char *prefix) if (argc > 0) { if (!strcmp(argv[0], "read")) return graph_read(argc, argv); + if (!strcmp(argv[0], "verify")) + return graph_verify(argc, argv); if (!strcmp(argv[0], "write")) return graph_write(argc, argv); } diff --git a/commit-graph.c b/commit-graph.c index 9e228d3bb5..488216a736 100644 --- a/commit-graph.c +++ b/commit-graph.c @@ -827,3 +827,26 @@ void write_commit_graph(const char *obj_dir, oids.alloc = 0; oids.nr = 0; } + +static int verify_commit_graph_error; + +static void graph_report(const char *fmt, ...) +{ + va_list ap; + + verify_commit_graph_error = 1; + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + fprintf(stderr, "\n"); + va_end(ap); +} + +int verify_commit_graph(struct repository *r, struct commit_graph *g) +{ + if (!g) { + graph_report("no commit-graph file loaded"); + return 1; + } + + return verify_commit_graph_error; +} diff --git a/commit-graph.h b/commit-graph.h index 96cccb10f3..4359812fb4 100644 --- a/commit-graph.h +++ b/commit-graph.h @@ -2,6 +2,7 @@ #define COMMIT_GRAPH_H #include "git-compat-util.h" +#include "repository.h" char *get_commit_graph_filename(const char *obj_dir); @@ -53,4 +54,6 @@ void write_commit_graph(const char *obj_dir, int nr_commits, int append); +int verify_commit_graph(struct repository *r, struct commit_graph *g); + #endif diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh index 59d0be2877..0830ef9fdd 100755 --- a/t/t5318-commit-graph.sh +++ b/t/t5318-commit-graph.sh @@ -11,6 +11,11 @@ test_expect_success 'setup full repo' ' objdir=".git/objects" ' +test_expect_success 'verify graph with no graph file' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph verify +' + test_expect_success 'write graph with no packs' ' cd "$TRASH_DIRECTORY/full" && git commit-graph write --object-dir . && @@ -230,4 +235,9 @@ test_expect_success 'perform fast-forward merge in full repo' ' test_cmp expect output ' +test_expect_success 'git commit-graph verify' ' + cd "$TRASH_DIRECTORY/full" && + git commit-graph verify >output +' + test_done |