#include "git-compat-util.h" #include "hash.h" #include "hex.h" #include "reftable/system.h" #include "reftable/reftable-error.h" #include "reftable/reftable-merged.h" #include "reftable/reftable-reader.h" #include "reftable/reftable-stack.h" #include "test-tool.h" static void print_help(void) { printf("usage: dump [-st] arg\n\n" "options: \n" " -b dump blocks\n" " -t dump table\n" " -s dump stack\n" " -6 sha256 hash format\n" " -h this help\n" "\n"); } static int dump_table(struct reftable_merged_table *mt) { struct reftable_iterator it = { NULL }; struct reftable_ref_record ref = { NULL }; struct reftable_log_record log = { NULL }; const struct git_hash_algo *algop; int err; err = reftable_merged_table_init_ref_iterator(mt, &it); if (err < 0) return err; err = reftable_iterator_seek_ref(&it, ""); if (err < 0) return err; algop = &hash_algos[hash_algo_by_id(reftable_merged_table_hash_id(mt))]; while (1) { err = reftable_iterator_next_ref(&it, &ref); if (err > 0) break; if (err < 0) return err; printf("ref{%s(%" PRIu64 ") ", ref.refname, ref.update_index); switch (ref.value_type) { case REFTABLE_REF_SYMREF: printf("=> %s", ref.value.symref); break; case REFTABLE_REF_VAL2: printf("val 2 %s", hash_to_hex_algop(ref.value.val2.value, algop)); printf("(T %s)", hash_to_hex_algop(ref.value.val2.target_value, algop)); break; case REFTABLE_REF_VAL1: printf("val 1 %s", hash_to_hex_algop(ref.value.val1, algop)); break; case REFTABLE_REF_DELETION: printf("delete"); break; } printf("}\n"); } reftable_iterator_destroy(&it); reftable_ref_record_release(&ref); err = reftable_merged_table_init_log_iterator(mt, &it); if (err < 0) return err; err = reftable_iterator_seek_log(&it, ""); if (err < 0) return err; while (1) { err = reftable_iterator_next_log(&it, &log); if (err > 0) break; if (err < 0) return err; switch (log.value_type) { case REFTABLE_LOG_DELETION: printf("log{%s(%" PRIu64 ") delete\n", log.refname, log.update_index); break; case REFTABLE_LOG_UPDATE: printf("log{%s(%" PRIu64 ") %s <%s> %" PRIu64 " %04d\n", log.refname, log.update_index, log.value.update.name ? log.value.update.name : "", log.value.update.email ? log.value.update.email : "", log.value.update.time, log.value.update.tz_offset); printf("%s => ", hash_to_hex_algop(log.value.update.old_hash, algop)); printf("%s\n\n%s\n}\n", hash_to_hex_algop(log.value.update.new_hash, algop), log.value.update.message ? log.value.update.message : ""); break; } } reftable_iterator_destroy(&it); reftable_log_record_release(&log); return 0; } static int dump_stack(const char *stackdir, uint32_t hash_id) { struct reftable_stack *stack = NULL; struct reftable_write_options opts = { .hash_id = hash_id }; struct reftable_merged_table *merged = NULL; int err = reftable_new_stack(&stack, stackdir, &opts); if (err < 0) goto done; merged = reftable_stack_merged_table(stack); err = dump_table(merged); done: if (stack) reftable_stack_destroy(stack); return err; } static int dump_reftable(const char *tablename) { struct reftable_block_source src = { 0 }; struct reftable_merged_table *mt = NULL; struct reftable_reader *r = NULL; int err; err = reftable_block_source_from_file(&src, tablename); if (err < 0) goto done; err = reftable_reader_new(&r, &src, tablename); if (err < 0) goto done; err = reftable_merged_table_new(&mt, &r, 1, reftable_reader_hash_id(r)); if (err < 0) goto done; err = dump_table(mt); done: reftable_merged_table_free(mt); reftable_reader_decref(r); return err; } int cmd__dump_reftable(int argc, const char **argv) { int err = 0; int opt_dump_blocks = 0; int opt_dump_table = 0; int opt_dump_stack = 0; uint32_t opt_hash_id = REFTABLE_HASH_SHA1; const char *arg = NULL, *argv0 = argv[0]; for (; argc > 1; argv++, argc--) if (*argv[1] != '-') break; else if (!strcmp("-b", argv[1])) opt_dump_blocks = 1; else if (!strcmp("-t", argv[1])) opt_dump_table = 1; else if (!strcmp("-6", argv[1])) opt_hash_id = REFTABLE_HASH_SHA256; else if (!strcmp("-s", argv[1])) opt_dump_stack = 1; else if (!strcmp("-?", argv[1]) || !strcmp("-h", argv[1])) { print_help(); return 2; } if (argc != 2) { fprintf(stderr, "need argument\n"); print_help(); return 2; } arg = argv[1]; if (opt_dump_blocks) { err = reftable_reader_print_blocks(arg); } else if (opt_dump_table) { err = dump_reftable(arg); } else if (opt_dump_stack) { err = dump_stack(arg, opt_hash_id); } if (err < 0) { fprintf(stderr, "%s: %s: %s\n", argv0, arg, reftable_error_str(err)); return 1; } return 0; }