[mirror_ovs.git] / ovsdb / ovsdb-tool.c

/*
 * Copyright (c) 2009, 2010 Nicira Networks.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <config.h>
#include <errno.h>
#include <fcntl.h>
#include <getopt.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>

#include "command-line.h"
#include "compiler.h"
#include "file.h"
#include "lockfile.h"
#include "log.h"
#include "json.h"
#include "ovsdb.h"
#include "ovsdb-error.h"
#include "socket-util.h"
#include "table.h"
#include "timeval.h"
#include "util.h"
#include "vlog.h"

VLOG_DEFINE_THIS_MODULE(ovsdb_tool);

/* -m, --more: Verbosity level for "show-log" command output. */
static int show_log_verbosity;

static const struct command all_commands[];

static void usage(void) NO_RETURN;
static void parse_options(int argc, char *argv[]);

int
main(int argc, char *argv[])
{
    set_program_name(argv[0]);
    parse_options(argc, argv);
    signal(SIGPIPE, SIG_IGN);
    run_command(argc - optind, argv + optind, all_commands);
    return 0;
}

static void
parse_options(int argc, char *argv[])
{
    static struct option long_options[] = {
        {"more", no_argument, 0, 'm'},
        {"verbose", optional_argument, 0, 'v'},
        {"help", no_argument, 0, 'h'},
        {"version", no_argument, 0, 'V'},
        {0, 0, 0, 0},
    };
    char *short_options = long_options_to_short_options(long_options);

    for (;;) {
        int c;

        c = getopt_long(argc, argv, short_options, long_options, NULL);
        if (c == -1) {
            break;
        }

        switch (c) {
        case 'm':
            show_log_verbosity++;
            break;

        case 'h':
            usage();

        case 'V':
            OVS_PRINT_VERSION(0, 0);
            exit(EXIT_SUCCESS);

        case 'v':
            vlog_set_verbosity(optarg);
            break;

        case '?':
            exit(EXIT_FAILURE);

        default:
            abort();
        }
    }
    free(short_options);
}

static void
usage(void)
{
    printf("%s: Open vSwitch database management utility\n"
           "usage: %s [OPTIONS] COMMAND [ARG...]\n"
           "  create DB SCHEMA   create DB with the given SCHEMA\n"
           "  compact DB [DST]   compact DB in-place (or to DST)\n"
           "  convert DB SCHEMA [DST]   convert DB to SCHEMA (to DST)\n"
           "  db-version DB      report version of schema used by DB\n"
           "  schema-version SCHEMA  report SCHEMA's schema version\n"
           "  query DB TRNS      execute read-only transaction on DB\n"
           "  transact DB TRNS   execute read/write transaction on DB\n"
           "  show-log DB        prints information about DB's log entries\n",
           program_name, program_name);
    vlog_usage();
    printf("\nOther options:\n"
           "  -m, --more                  increase show-log verbosity\n"
           "  -h, --help                  display this help message\n"
           "  -V, --version               display version information\n");
    exit(EXIT_SUCCESS);
}
\f
static struct json *
parse_json(const char *s)
{
    struct json *json = json_from_string(s);
    if (json->type == JSON_STRING) {
        ovs_fatal(0, "\"%s\": %s", s, json->u.string);
    }
    return json;
}

static void
print_and_free_json(struct json *json)
{
    char *string = json_to_string(json, JSSF_SORT);
    json_destroy(json);
    puts(string);
    free(string);
}

static void
check_ovsdb_error(struct ovsdb_error *error)
{
    if (error) {
        ovs_fatal(0, "%s", ovsdb_error_to_string(error));
    }
}
\f
static void
do_create(int argc OVS_UNUSED, char *argv[])
{
    const char *db_file_name = argv[1];
    const char *schema_file_name = argv[2];
    struct ovsdb_schema *schema;
    struct ovsdb_log *log;
    struct json *json;

    /* Read schema from file and convert to JSON. */
    check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
    json = ovsdb_schema_to_json(schema);
    ovsdb_schema_destroy(schema);

    /* Create database file. */
    check_ovsdb_error(ovsdb_log_open(db_file_name, OVSDB_LOG_CREATE,
                                     -1, &log));
    check_ovsdb_error(ovsdb_log_write(log, json));
    check_ovsdb_error(ovsdb_log_commit(log));
    ovsdb_log_close(log);

    json_destroy(json);
}

static void
compact_or_convert(const char *src_name, const char *dst_name,
                   const struct ovsdb_schema *new_schema,
                   const char *comment)
{
    struct lockfile *src_lock;
    struct lockfile *dst_lock;
    bool in_place = dst_name == NULL;
    struct ovsdb *db;
    int retval;

    /* Lock the source, if we will be replacing it. */
    if (in_place) {
        retval = lockfile_lock(src_name, 0, &src_lock);
        if (retval) {
            ovs_fatal(retval, "%s: failed to lock lockfile", src_name);
        }
    }

    /* Get (temporary) destination and lock it. */
    if (in_place) {
        dst_name = xasprintf("%s.tmp", src_name);
    }
    retval = lockfile_lock(dst_name, 0, &dst_lock);
    if (retval) {
        ovs_fatal(retval, "%s: failed to lock lockfile", dst_name);
    }

    /* Save a copy. */
    check_ovsdb_error(new_schema
                      ? ovsdb_file_open_as_schema(src_name, new_schema, &db)
                      : ovsdb_file_open(src_name, true, &db, NULL));
    check_ovsdb_error(ovsdb_file_save_copy(dst_name, false, comment, db));
    ovsdb_destroy(db);

    /* Replace source. */
    if (in_place) {
        if (rename(dst_name, src_name)) {
            ovs_fatal(errno, "failed to rename \"%s\" to \"%s\"",
                      dst_name, src_name);
        }
        fsync_parent_dir(dst_name);
        lockfile_unlock(src_lock);
    }

    lockfile_unlock(dst_lock);
}

static void
do_compact(int argc OVS_UNUSED, char *argv[])
{
    compact_or_convert(argv[1], argv[2], NULL, "compacted by ovsdb-tool");
}

static void
do_convert(int argc OVS_UNUSED, char *argv[])
{
    const char *schema_file_name = argv[2];
    struct ovsdb_schema *new_schema;

    check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &new_schema));
    compact_or_convert(argv[1], argv[3], new_schema,
                       "converted by ovsdb-tool");
    ovsdb_schema_destroy(new_schema);
}

static void
do_db_version(int argc OVS_UNUSED, char *argv[])
{
    const char *db_file_name = argv[1];
    struct ovsdb *db;

    check_ovsdb_error(ovsdb_file_open(db_file_name, true, &db, NULL));
    puts(db->schema->version);
    ovsdb_destroy(db);
}

static void
do_schema_version(int argc OVS_UNUSED, char *argv[])
{
    const char *schema_file_name = argv[1];
    struct ovsdb_schema *schema;

    check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
    puts(schema->version);
    ovsdb_schema_destroy(schema);
}

static void
transact(bool read_only, const char *db_file_name, const char *transaction)
{
    struct json *request, *result;
    struct ovsdb *db;

    check_ovsdb_error(ovsdb_file_open(db_file_name, read_only, &db, NULL));

    request = parse_json(transaction);
    result = ovsdb_execute(db, request, 0, NULL);
    json_destroy(request);

    print_and_free_json(result);
    ovsdb_destroy(db);
}

static void
do_query(int argc OVS_UNUSED, char *argv[])
{
    transact(true, argv[1], argv[2]);
}

static void
do_transact(int argc OVS_UNUSED, char *argv[])
{
    transact(false, argv[1], argv[2]);
}

static void
print_db_changes(struct shash *tables, struct shash *names)
{
    struct shash_node *n1;

    SHASH_FOR_EACH (n1, tables) {
        const char *table = n1->name;
        struct json *rows = n1->data;
        struct shash_node *n2;

        if (n1->name[0] == '_' || rows->type != JSON_OBJECT) {
            continue;
        }

        SHASH_FOR_EACH (n2, json_object(rows)) {
            const char *row_uuid = n2->name;
            struct json *columns = n2->data;
            struct shash_node *n3;
            char *old_name, *new_name;
            bool free_new_name = false;

            old_name = new_name = shash_find_data(names, row_uuid);
            if (columns->type == JSON_OBJECT) {
                struct json *new_name_json;

                new_name_json = shash_find_data(json_object(columns), "name");
                if (new_name_json) {
                    new_name = json_to_string(new_name_json, JSSF_SORT);
                    free_new_name = true;
                }
            }

            printf("\ttable %s", table);

            if (!old_name) {
                if (new_name) {
                    printf(" insert row %s:\n", new_name);
                } else {
                    printf(" insert row %.8s:\n", row_uuid);
                }
            } else {
                printf(" row %s:\n", old_name);
            }

            if (columns->type == JSON_OBJECT) {
                if (show_log_verbosity > 1) {
                    SHASH_FOR_EACH (n3, json_object(columns)) {
                        const char *column = n3->name;
                        struct json *value = n3->data;
                        char *value_string;

                        value_string = json_to_string(value, JSSF_SORT);
                        printf("\t\t%s=%s\n", column, value_string);
                        free(value_string);
                    }
                }
                if (!old_name
                    || (new_name != old_name && strcmp(old_name, new_name))) {
                    if (old_name) {
                        shash_delete(names, shash_find(names, row_uuid));
                        free(old_name);
                    }
                    shash_add(names, row_uuid, (new_name
                                                ? xstrdup(new_name)
                                                : xmemdup0(row_uuid, 8)));
                }
            } else if (columns->type == JSON_NULL) {
                struct shash_node *node;

                printf("\t\tdelete row\n");
                node = shash_find(names, row_uuid);
                if (node) {
                    shash_delete(names, node);
                }
                free(old_name);
            }

            if (free_new_name) {
                free(new_name);
            }
        }
    }
}

static void
do_show_log(int argc OVS_UNUSED, char *argv[])
{
    const char *db_file_name = argv[1];
    struct shash names;
    struct ovsdb_log *log;
    unsigned int i;

    check_ovsdb_error(ovsdb_log_open(db_file_name, OVSDB_LOG_READ_ONLY,
                                     -1, &log));
    shash_init(&names);
    for (i = 0; ; i++) {
        struct json *json;

        check_ovsdb_error(ovsdb_log_read(log, &json));
        if (!json) {
            break;
        }

        printf("record %u:", i);
        if (json->type == JSON_OBJECT) {
            struct json *date, *comment;

            date = shash_find_data(json_object(json), "_date");
            if (date && date->type == JSON_INTEGER) {
                time_t t = json_integer(date);
                char s[128];

                strftime(s, sizeof s, "%Y-%m-%d %H:%M:%S", localtime(&t));
                printf(" %s", s);
            }

            comment = shash_find_data(json_object(json), "_comment");
            if (comment && comment->type == JSON_STRING) {
                printf(" \"%s\"", json_string(comment));
            }

            if (i > 0 && show_log_verbosity > 0) {
                putchar('\n');
                print_db_changes(json_object(json), &names);
            }
        }
        json_destroy(json);
        putchar('\n');
    }

    /* XXX free 'names'. */
}

static void
do_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
{
    usage();
}

static const struct command all_commands[] = {
    { "create", 2, 2, do_create },
    { "compact", 1, 2, do_compact },
    { "convert", 2, 3, do_convert },
    { "db-version", 1, 1, do_db_version },
    { "schema-version", 1, 1, do_schema_version },
    { "query", 2, 2, do_query },
    { "transact", 2, 2, do_transact },
    { "show-log", 1, 1, do_show_log },
    { "help", 0, INT_MAX, do_help },
    { NULL, 0, 0, NULL },
};
Commit	Line	Data
f85f8ebb	1	/*
c6782bb0	2	* Copyright (c) 2009, 2010 Nicira Networks.
f85f8ebb BP	3	*
	4	* Licensed under the Apache License, Version 2.0 (the "License");
	5	* you may not use this file except in compliance with the License.
	6	* You may obtain a copy of the License at:
	7	*
	8	* http://www.apache.org/licenses/LICENSE-2.0
	9	*
	10	* Unless required by applicable law or agreed to in writing, software
	11	* distributed under the License is distributed on an "AS IS" BASIS,
	12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	13	* See the License for the specific language governing permissions and
	14	* limitations under the License.
	15	*/
	16
	17	#include <config.h>
	18	#include <errno.h>
	19	#include <fcntl.h>
	20	#include <getopt.h>
	21	#include <signal.h>
	22	#include <stdlib.h>
	23	#include <string.h>
	24
	25	#include "command-line.h"
	26	#include "compiler.h"
bd06962a	27	#include "file.h"
1e19e50e	28	#include "lockfile.h"
41709ccc	29	#include "log.h"
f85f8ebb BP	30	#include "json.h"
	31	#include "ovsdb.h"
	32	#include "ovsdb-error.h"
1e19e50e	33	#include "socket-util.h"
f85f8ebb BP	34	#include "table.h"
	35	#include "timeval.h"
	36	#include "util.h"
f85f8ebb	37	#include "vlog.h"
5136ce49	38
d98e6007	39	VLOG_DEFINE_THIS_MODULE(ovsdb_tool);
f85f8ebb	40
c6782bb0 BP	41	/* -m, --more: Verbosity level for "show-log" command output. */
	42	static int show_log_verbosity;
	43
f85f8ebb BP	44	static const struct command all_commands[];
	45
	46	static void usage(void) NO_RETURN;
	47	static void parse_options(int argc, char *argv[]);
	48
	49	int
	50	main(int argc, char *argv[])
	51	{
	52	set_program_name(argv[0]);
f85f8ebb BP	53	parse_options(argc, argv);
	54	signal(SIGPIPE, SIG_IGN);
	55	run_command(argc - optind, argv + optind, all_commands);
	56	return 0;
	57	}
	58
	59	static void
	60	parse_options(int argc, char *argv[])
	61	{
	62	static struct option long_options[] = {
c6782bb0	63	{"more", no_argument, 0, 'm'},
f85f8ebb BP	64	{"verbose", optional_argument, 0, 'v'},
	65	{"help", no_argument, 0, 'h'},
	66	{"version", no_argument, 0, 'V'},
	67	{0, 0, 0, 0},
	68	};
	69	char *short_options = long_options_to_short_options(long_options);
	70
	71	for (;;) {
	72	int c;
	73
	74	c = getopt_long(argc, argv, short_options, long_options, NULL);
	75	if (c == -1) {
	76	break;
	77	}
	78
	79	switch (c) {
c6782bb0 BP	80	case 'm':
	81	show_log_verbosity++;
	82	break;
	83
f85f8ebb BP	84	case 'h':
	85	usage();
	86
	87	case 'V':
	88	OVS_PRINT_VERSION(0, 0);
	89	exit(EXIT_SUCCESS);
	90
	91	case 'v':
	92	vlog_set_verbosity(optarg);
	93	break;
	94
	95	case '?':
	96	exit(EXIT_FAILURE);
	97
	98	default:
	99	abort();
	100	}
	101	}
	102	free(short_options);
	103	}
	104
	105	static void
	106	usage(void)
	107	{
	108	printf("%s: Open vSwitch database management utility\n"
	109	"usage: %s [OPTIONS] COMMAND [ARG...]\n"
	110	" create DB SCHEMA create DB with the given SCHEMA\n"
	111	" compact DB [DST] compact DB in-place (or to DST)\n"
1e19e50e	112	" convert DB SCHEMA [DST] convert DB to SCHEMA (to DST)\n"
8159b984 BP	113	" db-version DB report version of schema used by DB\n"
8159b984 BP	114	" schema-version SCHEMA report SCHEMA's schema version\n"
f85f8ebb	115	" query DB TRNS execute read-only transaction on DB\n"
722f6301 BP	116	" transact DB TRNS execute read/write transaction on DB\n"
722f6301 BP	117	" show-log DB prints information about DB's log entries\n",
f85f8ebb BP	118	program_name, program_name);
	119	vlog_usage();
	120	printf("\nOther options:\n"
c6782bb0	121	" -m, --more increase show-log verbosity\n"
f85f8ebb BP	122	" -h, --help display this help message\n"
	123	" -V, --version display version information\n");
	124	exit(EXIT_SUCCESS);
	125	}
	126	\f
	127	static struct json *
	128	parse_json(const char *s)
	129	{
	130	struct json *json = json_from_string(s);
	131	if (json->type == JSON_STRING) {
	132	ovs_fatal(0, "\"%s\": %s", s, json->u.string);
	133	}
	134	return json;
	135	}
	136
	137	static void
	138	print_and_free_json(struct json *json)
	139	{
	140	char *string = json_to_string(json, JSSF_SORT);
	141	json_destroy(json);
	142	puts(string);
	143	free(string);
	144	}
	145
	146	static void
	147	check_ovsdb_error(struct ovsdb_error *error)
	148	{
	149	if (error) {
	150	ovs_fatal(0, "%s", ovsdb_error_to_string(error));
	151	}
	152	}
	153	\f
	154	static void
c69ee87c	155	do_create(int argc OVS_UNUSED, char *argv[])
f85f8ebb BP	156	{
	157	const char *db_file_name = argv[1];
	158	const char *schema_file_name = argv[2];
	159	struct ovsdb_schema *schema;
41709ccc	160	struct ovsdb_log *log;
f85f8ebb BP	161	struct json *json;
	162
	163	/* Read schema from file and convert to JSON. */
	164	check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
	165	json = ovsdb_schema_to_json(schema);
90cc4071	166	ovsdb_schema_destroy(schema);
f85f8ebb BP	167
f85f8ebb BP	168	/* Create database file. */
7446f148 BP	169	check_ovsdb_error(ovsdb_log_open(db_file_name, OVSDB_LOG_CREATE,
7446f148 BP	170	-1, &log));
41709ccc BP	171	check_ovsdb_error(ovsdb_log_write(log, json));
	172	check_ovsdb_error(ovsdb_log_commit(log));
	173	ovsdb_log_close(log);
f85f8ebb BP	174
	175	json_destroy(json);
	176	}
	177
1e19e50e BP	178	static void
	179	compact_or_convert(const char src_name, const char dst_name,
	180	const struct ovsdb_schema *new_schema,
	181	const char *comment)
	182	{
	183	struct lockfile *src_lock;
	184	struct lockfile *dst_lock;
	185	bool in_place = dst_name == NULL;
	186	struct ovsdb *db;
	187	int retval;
	188
aebfc869	189	/* Lock the source, if we will be replacing it. */
1e19e50e	190	if (in_place) {
7a6ec19d	191	retval = lockfile_lock(src_name, 0, &src_lock);
aebfc869 BP	192	if (retval) {
	193	ovs_fatal(retval, "%s: failed to lock lockfile", src_name);
	194	}
1e19e50e BP	195	}
1e19e50e BP	196
aebfc869 BP	197	/* Get (temporary) destination and lock it. */
	198	if (in_place) {
	199	dst_name = xasprintf("%s.tmp", src_name);
1e19e50e	200	}
7a6ec19d	201	retval = lockfile_lock(dst_name, 0, &dst_lock);
1e19e50e BP	202	if (retval) {
	203	ovs_fatal(retval, "%s: failed to lock lockfile", dst_name);
	204	}
	205
	206	/* Save a copy. */
	207	check_ovsdb_error(new_schema
	208	? ovsdb_file_open_as_schema(src_name, new_schema, &db)
ada496b5	209	: ovsdb_file_open(src_name, true, &db, NULL));
1e19e50e BP	210	check_ovsdb_error(ovsdb_file_save_copy(dst_name, false, comment, db));
	211	ovsdb_destroy(db);
	212
	213	/* Replace source. */
	214	if (in_place) {
	215	if (rename(dst_name, src_name)) {
	216	ovs_fatal(errno, "failed to rename \"%s\" to \"%s\"",
	217	dst_name, src_name);
	218	}
	219	fsync_parent_dir(dst_name);
1e19e50e BP	220	lockfile_unlock(src_lock);
	221	}
	222
	223	lockfile_unlock(dst_lock);
	224	}
	225
	226	static void
	227	do_compact(int argc OVS_UNUSED, char *argv[])
	228	{
	229	compact_or_convert(argv[1], argv[2], NULL, "compacted by ovsdb-tool");
	230	}
	231
	232	static void
	233	do_convert(int argc OVS_UNUSED, char *argv[])
	234	{
	235	const char *schema_file_name = argv[2];
	236	struct ovsdb_schema *new_schema;
	237
	238	check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &new_schema));
	239	compact_or_convert(argv[1], argv[3], new_schema,
	240	"converted by ovsdb-tool");
	241	ovsdb_schema_destroy(new_schema);
	242	}
	243
8159b984 BP	244	static void
	245	do_db_version(int argc OVS_UNUSED, char *argv[])
	246	{
	247	const char *db_file_name = argv[1];
	248	struct ovsdb *db;
	249
	250	check_ovsdb_error(ovsdb_file_open(db_file_name, true, &db, NULL));
	251	puts(db->schema->version);
	252	ovsdb_destroy(db);
	253	}
	254
	255	static void
	256	do_schema_version(int argc OVS_UNUSED, char *argv[])
	257	{
	258	const char *schema_file_name = argv[1];
	259	struct ovsdb_schema *schema;
	260
	261	check_ovsdb_error(ovsdb_schema_from_file(schema_file_name, &schema));
	262	puts(schema->version);
	263	ovsdb_schema_destroy(schema);
	264	}
	265
f85f8ebb	266	static void
8b681e6f	267	transact(bool read_only, const char db_file_name, const char transaction)
f85f8ebb BP	268	{
	269	struct json request, result;
	270	struct ovsdb *db;
	271
ada496b5	272	check_ovsdb_error(ovsdb_file_open(db_file_name, read_only, &db, NULL));
f85f8ebb BP	273
	274	request = parse_json(transaction);
	275	result = ovsdb_execute(db, request, 0, NULL);
	276	json_destroy(request);
	277
	278	print_and_free_json(result);
	279	ovsdb_destroy(db);
	280	}
	281
	282	static void
c69ee87c	283	do_query(int argc OVS_UNUSED, char *argv[])
f85f8ebb	284	{
8b681e6f	285	transact(true, argv[1], argv[2]);
f85f8ebb BP	286	}
	287
	288	static void
c69ee87c	289	do_transact(int argc OVS_UNUSED, char *argv[])
f85f8ebb	290	{
8b681e6f	291	transact(false, argv[1], argv[2]);
f85f8ebb BP	292	}
f85f8ebb BP	293
c6782bb0 BP	294	static void
	295	print_db_changes(struct shash tables, struct shash names)
	296	{
	297	struct shash_node *n1;
	298
	299	SHASH_FOR_EACH (n1, tables) {
	300	const char *table = n1->name;
	301	struct json *rows = n1->data;
	302	struct shash_node *n2;
	303
	304	if (n1->name[0] == '_' \|\| rows->type != JSON_OBJECT) {
	305	continue;
	306	}
	307
	308	SHASH_FOR_EACH (n2, json_object(rows)) {
	309	const char *row_uuid = n2->name;
	310	struct json *columns = n2->data;
	311	struct shash_node *n3;
	312	char old_name, new_name;
	313	bool free_new_name = false;
	314
	315	old_name = new_name = shash_find_data(names, row_uuid);
	316	if (columns->type == JSON_OBJECT) {
	317	struct json *new_name_json;
	318
	319	new_name_json = shash_find_data(json_object(columns), "name");
	320	if (new_name_json) {
	321	new_name = json_to_string(new_name_json, JSSF_SORT);
	322	free_new_name = true;
	323	}
	324	}
	325
	326	printf("\ttable %s", table);
	327
	328	if (!old_name) {
	329	if (new_name) {
	330	printf(" insert row %s:\n", new_name);
	331	} else {
	332	printf(" insert row %.8s:\n", row_uuid);
	333	}
	334	} else {
	335	printf(" row %s:\n", old_name);
	336	}
	337
	338	if (columns->type == JSON_OBJECT) {
	339	if (show_log_verbosity > 1) {
	340	SHASH_FOR_EACH (n3, json_object(columns)) {
	341	const char *column = n3->name;
	342	struct json *value = n3->data;
	343	char *value_string;
	344
	345	value_string = json_to_string(value, JSSF_SORT);
	346	printf("\t\t%s=%s\n", column, value_string);
	347	free(value_string);
	348	}
	349	}
	350	if (!old_name
	351	\|\| (new_name != old_name && strcmp(old_name, new_name))) {
	352	if (old_name) {
	353	shash_delete(names, shash_find(names, row_uuid));
	354	free(old_name);
	355	}
	356	shash_add(names, row_uuid, (new_name
	357	? xstrdup(new_name)
358	: xmemdup0(row_uuid, 8)));
359	}
360	} else if (columns->type == JSON_NULL) {
b932d88b BP	361	struct shash_node *node;
b932d88b BP	362
c6782bb0	363	printf("\t\tdelete row\n");
b932d88b BP	364	node = shash_find(names, row_uuid);
	365	if (node) {
	366	shash_delete(names, node);
	367	}
c6782bb0 BP	368	free(old_name);
	369	}
	370
	371	if (free_new_name) {
	372	free(new_name);
	373	}
	374	}
	375	}
	376	}
	377
722f6301	378	static void
c69ee87c	379	do_show_log(int argc OVS_UNUSED, char *argv[])
722f6301 BP	380	{
722f6301 BP	381	const char *db_file_name = argv[1];
c6782bb0	382	struct shash names;
722f6301 BP	383	struct ovsdb_log *log;
	384	unsigned int i;
	385
7446f148 BP	386	check_ovsdb_error(ovsdb_log_open(db_file_name, OVSDB_LOG_READ_ONLY,
7446f148 BP	387	-1, &log));
c6782bb0	388	shash_init(&names);
722f6301 BP	389	for (i = 0; ; i++) {
	390	struct json *json;
	391
	392	check_ovsdb_error(ovsdb_log_read(log, &json));
	393	if (!json) {
	394	break;
	395	}
	396
	397	printf("record %u:", i);
	398	if (json->type == JSON_OBJECT) {
	399	struct json date, comment;
	400
	401	date = shash_find_data(json_object(json), "_date");
	402	if (date && date->type == JSON_INTEGER) {
	403	time_t t = json_integer(date);
	404	char s[128];
	405
	406	strftime(s, sizeof s, "%Y-%m-%d %H:%M:%S", localtime(&t));
	407	printf(" %s", s);
	408	}
	409
	410	comment = shash_find_data(json_object(json), "_comment");
	411	if (comment && comment->type == JSON_STRING) {
	412	printf(" \"%s\"", json_string(comment));
	413	}
c6782bb0 BP	414
	415	if (i > 0 && show_log_verbosity > 0) {
	416	putchar('\n');
	417	print_db_changes(json_object(json), &names);
	418	}
722f6301 BP	419	}
	420	json_destroy(json);
	421	putchar('\n');
	422	}
c6782bb0 BP	423
c6782bb0 BP	424	/* XXX free 'names'. */
722f6301 BP	425	}
722f6301 BP	426
f85f8ebb	427	static void
c69ee87c	428	do_help(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
f85f8ebb BP	429	{
	430	usage();
	431	}
	432
	433	static const struct command all_commands[] = {
	434	{ "create", 2, 2, do_create },
1e19e50e BP	435	{ "compact", 1, 2, do_compact },
1e19e50e BP	436	{ "convert", 2, 3, do_convert },
8159b984 BP	437	{ "db-version", 1, 1, do_db_version },
8159b984 BP	438	{ "schema-version", 1, 1, do_schema_version },
f85f8ebb BP	439	{ "query", 2, 2, do_query },
f85f8ebb BP	440	{ "transact", 2, 2, do_transact },
722f6301	441	{ "show-log", 1, 1, do_show_log },
f85f8ebb BP	442	{ "help", 0, INT_MAX, do_help },
	443	{ NULL, 0, 0, NULL },
	444	};