src/redis-cli.c

   1 /* Redis CLI (command line interface)
   2  *
   3  * Copyright (c) 2009-2010, Salvatore Sanfilippo <antirez at gmail dot com>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  *   * Redistributions of source code must retain the above copyright notice,
  10  *     this list of conditions and the following disclaimer.
  11  *   * Redistributions in binary form must reproduce the above copyright
  12  *     notice, this list of conditions and the following disclaimer in the
  13  *     documentation and/or other materials provided with the distribution.
  14  *   * Neither the name of Redis nor the names of its contributors may be used
  15  *     to endorse or promote products derived from this software without
  16  *     specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "fmacros.h"
  32 #include "version.h"
  33
  34 #include <stdio.h>
  35 #include <string.h>
  36 #include <stdlib.h>
  37 #include <unistd.h>
  38 #include <ctype.h>
  39 #include <errno.h>
  40 #include <sys/stat.h>
  41 #include <sys/time.h>
  42 #include <assert.h>
  43
  44 #include "hiredis.h"
  45 #include "sds.h"
  46 #include "zmalloc.h"
  47 #include "linenoise.h"
  48 #include "help.h"
  49
  50 #define REDIS_NOTUSED(V) ((void) V)
  51
  52 static redisContext *context;
  53 static struct config {
  54     char *hostip;
  55     int hostport;
  56     char *hostsocket;
  57     long repeat;
  58     int dbnum;
  59     int interactive;
  60     int shutdown;
  61     int monitor_mode;
  62     int pubsub_mode;
  63     int stdinarg; /* get last arg from stdin. (-x option) */
  64     char *auth;
  65     int raw_output; /* output mode per command */
  66     sds mb_delim;
  67 } config;
  68
  69 static void usage();
  70 char *redisGitSHA1(void);
  71 char *redisGitDirty(void);
  72
  73 /*------------------------------------------------------------------------------
  74  * Utility functions
  75  *--------------------------------------------------------------------------- */
  76
  77 static long long mstime(void) {
  78     struct timeval tv;
  79     long long mst;
  80
  81     gettimeofday(&tv, NULL);
  82     mst = ((long)tv.tv_sec)*1000;
  83     mst += tv.tv_usec/1000;
  84     return mst;
  85 }
  86
  87 /*------------------------------------------------------------------------------
  88  * Help functions
  89  *--------------------------------------------------------------------------- */
  90
  91 #define CLI_HELP_COMMAND 1
  92 #define CLI_HELP_GROUP 2
  93
  94 typedef struct {
  95     int type;
  96     int argc;
  97     sds *argv;
  98     sds full;
  99
 100     /* Only used for help on commands */
 101     struct commandHelp *org;
 102 } helpEntry;
 103
 104 static helpEntry *helpEntries;
 105 static int helpEntriesLen;
 106
 107 static sds cliVersion() {
 108     sds version;
 109     version = sdscatprintf(sdsempty(), "%s", REDIS_VERSION);
 110
 111     /* Add git commit and working tree status when available */
 112     if (strtoll(redisGitSHA1(),NULL,16)) {
 113         version = sdscatprintf(version, " (git:%s", redisGitSHA1());
 114         if (strtoll(redisGitDirty(),NULL,10))
 115             version = sdscatprintf(version, "-dirty");
 116         version = sdscat(version, ")");
 117     }
 118     return version;
 119 }
 120
 121 static void cliInitHelp() {
 122     int commandslen = sizeof(commandHelp)/sizeof(struct commandHelp);
 123     int groupslen = sizeof(commandGroups)/sizeof(char*);
 124     int i, len, pos = 0;
 125     helpEntry tmp;
 126
 127     helpEntriesLen = len = commandslen+groupslen;
 128     helpEntries = malloc(sizeof(helpEntry)*len);
 129
 130     for (i = 0; i < groupslen; i++) {
 131         tmp.argc = 1;
 132         tmp.argv = malloc(sizeof(sds));
 133         tmp.argv[0] = sdscatprintf(sdsempty(),"@%s",commandGroups[i]);
 134         tmp.full = tmp.argv[0];
 135         tmp.type = CLI_HELP_GROUP;
 136         tmp.org = NULL;
 137         helpEntries[pos++] = tmp;
 138     }
 139
 140     for (i = 0; i < commandslen; i++) {
 141         tmp.argv = sdssplitargs(commandHelp[i].name,&tmp.argc);
 142         tmp.full = sdsnew(commandHelp[i].name);
 143         tmp.type = CLI_HELP_COMMAND;
 144         tmp.org = &commandHelp[i];
 145         helpEntries[pos++] = tmp;
 146     }
 147 }
 148
 149 /* Output command help to stdout. */
 150 static void cliOutputCommandHelp(struct commandHelp *help, int group) {
 151     printf("\r\n  \x1b[1m%s\x1b[0m \x1b[90m%s\x1b[0m\r\n", help->name, help->params);
 152     printf("  \x1b[33msummary:\x1b[0m %s\r\n", help->summary);
 153     printf("  \x1b[33msince:\x1b[0m %s\r\n", help->since);
 154     if (group) {
 155         printf("  \x1b[33mgroup:\x1b[0m %s\r\n", commandGroups[help->group]);
 156     }
 157 }
 158
 159 /* Print generic help. */
 160 static void cliOutputGenericHelp() {
 161     sds version = cliVersion();
 162     printf(
 163         "redis-cli %s\r\n"
 164         "Type: \"help @<group>\" to get a list of commands in <group>\r\n"
 165         "      \"help <command>\" for help on <command>\r\n"
 166         "      \"help <tab>\" to get a list of possible help topics\r\n"
 167         "      \"quit\" to exit\r\n",
 168         version
 169     );
 170     sdsfree(version);
 171 }
 172
 173 /* Output all command help, filtering by group or command name. */
 174 static void cliOutputHelp(int argc, char **argv) {
 175     int i, j, len;
 176     int group = -1;
 177     helpEntry *entry;
 178     struct commandHelp *help;
 179
 180     if (argc == 0) {
 181         cliOutputGenericHelp();
 182         return;
 183     } else if (argc > 0 && argv[0][0] == '@') {
 184         len = sizeof(commandGroups)/sizeof(char*);
 185         for (i = 0; i < len; i++) {
 186             if (strcasecmp(argv[0]+1,commandGroups[i]) == 0) {
 187                 group = i;
 188                 break;
 189             }
 190         }
 191     }
 192
 193     assert(argc > 0);
 194     for (i = 0; i < helpEntriesLen; i++) {
 195         entry = &helpEntries[i];
 196         if (entry->type != CLI_HELP_COMMAND) continue;
 197
 198         help = entry->org;
 199         if (group == -1) {
 200             /* Compare all arguments */
 201             if (argc == entry->argc) {
 202                 for (j = 0; j < argc; j++) {
 203                     if (strcasecmp(argv[j],entry->argv[j]) != 0) break;
 204                 }
 205                 if (j == argc) {
 206                     cliOutputCommandHelp(help,1);
 207                 }
 208             }
 209         } else {
 210             if (group == help->group) {
 211                 cliOutputCommandHelp(help,0);
 212             }
 213         }
 214     }
 215     printf("\r\n");
 216 }
 217
 218 static void completionCallback(const char *buf, linenoiseCompletions *lc) {
 219     size_t startpos = 0;
 220     int mask;
 221     int i;
 222     size_t matchlen;
 223     sds tmp;
 224
 225     if (strncasecmp(buf,"help ",5) == 0) {
 226         startpos = 5;
 227         while (isspace(buf[startpos])) startpos++;
 228         mask = CLI_HELP_COMMAND | CLI_HELP_GROUP;
 229     } else {
 230         mask = CLI_HELP_COMMAND;
 231     }
 232
 233     for (i = 0; i < helpEntriesLen; i++) {
 234         if (!(helpEntries[i].type & mask)) continue;
 235
 236         matchlen = strlen(buf+startpos);
 237         if (strncasecmp(buf+startpos,helpEntries[i].full,matchlen) == 0) {
 238             tmp = sdsnewlen(buf,startpos);
 239             tmp = sdscat(tmp,helpEntries[i].full);
 240             linenoiseAddCompletion(lc,tmp);
 241             sdsfree(tmp);
 242         }
 243     }
 244 }
 245
 246 /*------------------------------------------------------------------------------
 247  * Networking / parsing
 248  *--------------------------------------------------------------------------- */
 249
 250 /* Send AUTH command to the server */
 251 static int cliAuth() {
 252     redisReply *reply;
 253     if (config.auth == NULL) return REDIS_OK;
 254
 255     reply = redisCommand(context,"AUTH %s",config.auth);
 256     if (reply != NULL) {
 257         freeReplyObject(reply);
 258         return REDIS_OK;
 259     }
 260     return REDIS_ERR;
 261 }
 262
 263 /* Send SELECT dbnum to the server */
 264 static int cliSelect() {
 265     redisReply *reply;
 266     if (config.dbnum == 0) return REDIS_OK;
 267
 268     reply = redisCommand(context,"SELECT %d",config.dbnum);
 269     if (reply != NULL) {
 270         freeReplyObject(reply);
 271         return REDIS_OK;
 272     }
 273     return REDIS_ERR;
 274 }
 275
 276 /* Connect to the client. If force is not zero the connection is performed
 277  * even if there is already a connected socket. */
 278 static int cliConnect(int force) {
 279     if (context == NULL || force) {
 280         if (context != NULL)
 281             redisFree(context);
 282
 283         if (config.hostsocket == NULL) {
 284             context = redisConnect(config.hostip,config.hostport);
 285         } else {
 286             context = redisConnectUnix(config.hostsocket);
 287         }
 288
 289         if (context->err) {
 290             fprintf(stderr,"Could not connect to Redis at ");
 291             if (config.hostsocket == NULL)
 292                 fprintf(stderr,"%s:%d: %s\n",config.hostip,config.hostport,context->errstr);
 293             else
 294                 fprintf(stderr,"%s: %s\n",config.hostsocket,context->errstr);
 295             redisFree(context);
 296             context = NULL;
 297             return REDIS_ERR;
 298         }
 299
 300         /* Do AUTH and select the right DB. */
 301         if (cliAuth() != REDIS_OK)
 302             return REDIS_ERR;
 303         if (cliSelect() != REDIS_OK)
 304             return REDIS_ERR;
 305     }
 306     return REDIS_OK;
 307 }
 308
 309 static void cliPrintContextErrorAndExit() {
 310     if (context == NULL) return;
 311     fprintf(stderr,"Error: %s\n",context->errstr);
 312     exit(1);
 313 }
 314
 315 static sds cliFormatReplyTTY(redisReply *r, char *prefix) {
 316     sds out = sdsempty();
 317     switch (r->type) {
 318     case REDIS_REPLY_ERROR:
 319         out = sdscatprintf(out,"(error) %s\n", r->str);
 320     break;
 321     case REDIS_REPLY_STATUS:
 322         out = sdscat(out,r->str);
 323         out = sdscat(out,"\n");
 324     break;
 325     case REDIS_REPLY_INTEGER:
 326         out = sdscatprintf(out,"(integer) %lld\n",r->integer);
 327     break;
 328     case REDIS_REPLY_STRING:
 329         /* If you are producing output for the standard output we want
 330         * a more interesting output with quoted characters and so forth */
 331         out = sdscatrepr(out,r->str,r->len);
 332         out = sdscat(out,"\n");
 333     break;
 334     case REDIS_REPLY_NIL:
 335         out = sdscat(out,"(nil)\n");
 336     break;
 337     case REDIS_REPLY_ARRAY:
 338         if (r->elements == 0) {
 339             out = sdscat(out,"(empty list or set)\n");
 340         } else {
 341             unsigned int i, idxlen = 0;
 342             char _prefixlen[16];
 343             char _prefixfmt[16];
 344             sds _prefix;
 345             sds tmp;
 346
 347             /* Calculate chars needed to represent the largest index */
 348             i = r->elements;
 349             do {
 350                 idxlen++;
 351                 i /= 10;
 352             } while(i);
 353
 354             /* Prefix for nested multi bulks should grow with idxlen+2 spaces */
 355             memset(_prefixlen,' ',idxlen+2);
 356             _prefixlen[idxlen+2] = '\0';
 357             _prefix = sdscat(sdsnew(prefix),_prefixlen);
 358
 359             /* Setup prefix format for every entry */
 360             snprintf(_prefixfmt,sizeof(_prefixfmt),"%%s%%%dd) ",idxlen);
 361
 362             for (i = 0; i < r->elements; i++) {
 363                 /* Don't use the prefix for the first element, as the parent
 364                  * caller already prepended the index number. */
 365                 out = sdscatprintf(out,_prefixfmt,i == 0 ? "" : prefix,i+1);
 366
 367                 /* Format the multi bulk entry */
 368                 tmp = cliFormatReplyTTY(r->element[i],_prefix);
 369                 out = sdscatlen(out,tmp,sdslen(tmp));
 370                 sdsfree(tmp);
 371             }
 372             sdsfree(_prefix);
 373         }
 374     break;
 375     default:
 376         fprintf(stderr,"Unknown reply type: %d\n", r->type);
 377         exit(1);
 378     }
 379     return out;
 380 }
 381
 382 static sds cliFormatReplyRaw(redisReply *r) {
 383     sds out = sdsempty(), tmp;
 384     size_t i;
 385
 386     switch (r->type) {
 387     case REDIS_REPLY_NIL:
 388         /* Nothing... */
 389     break;
 390     case REDIS_REPLY_ERROR:
 391     case REDIS_REPLY_STATUS:
 392     case REDIS_REPLY_STRING:
 393         out = sdscatlen(out,r->str,r->len);
 394     break;
 395     case REDIS_REPLY_INTEGER:
 396         out = sdscatprintf(out,"%lld",r->integer);
 397     break;
 398     case REDIS_REPLY_ARRAY:
 399         for (i = 0; i < r->elements; i++) {
 400             if (i > 0) out = sdscat(out,config.mb_delim);
 401             tmp = cliFormatReplyRaw(r->element[i]);
 402             out = sdscatlen(out,tmp,sdslen(tmp));
 403             sdsfree(tmp);
 404         }
 405     break;
 406     default:
 407         fprintf(stderr,"Unknown reply type: %d\n", r->type);
 408         exit(1);
 409     }
 410     return out;
 411 }
 412
 413 static int cliReadReply(int output_raw_strings) {
 414     void *_reply;
 415     redisReply *reply;
 416     sds out;
 417
 418     if (redisGetReply(context,&_reply) != REDIS_OK) {
 419         if (config.shutdown)
 420             return REDIS_OK;
 421         if (config.interactive) {
 422             /* Filter cases where we should reconnect */
 423             if (context->err == REDIS_ERR_IO && errno == ECONNRESET)
 424                 return REDIS_ERR;
 425             if (context->err == REDIS_ERR_EOF)
 426                 return REDIS_ERR;
 427         }
 428         cliPrintContextErrorAndExit();
 429         return REDIS_ERR; /* avoid compiler warning */
 430     }
 431
 432     reply = (redisReply*)_reply;
 433     if (output_raw_strings) {
 434         out = cliFormatReplyRaw(reply);
 435     } else {
 436         if (config.raw_output) {
 437             out = cliFormatReplyRaw(reply);
 438             out = sdscat(out,"\n");
 439         } else {
 440             out = cliFormatReplyTTY(reply,"");
 441         }
 442     }
 443     fwrite(out,sdslen(out),1,stdout);
 444     sdsfree(out);
 445     freeReplyObject(reply);
 446     return REDIS_OK;
 447 }
 448
 449 static int cliSendCommand(int argc, char **argv, int repeat) {
 450     char *command = argv[0];
 451     size_t *argvlen;
 452     int j, output_raw;
 453
 454     if (context == NULL) {
 455         printf("Not connected, please use: connect <host> <port>\n");
 456         return REDIS_OK;
 457     }
 458
 459     output_raw = !strcasecmp(command,"info");
 460     if (!strcasecmp(command,"help") || !strcasecmp(command,"?")) {
 461         cliOutputHelp(--argc, ++argv);
 462         return REDIS_OK;
 463     }
 464     if (!strcasecmp(command,"shutdown")) config.shutdown = 1;
 465     if (!strcasecmp(command,"monitor")) config.monitor_mode = 1;
 466     if (!strcasecmp(command,"subscribe") ||
 467         !strcasecmp(command,"psubscribe")) config.pubsub_mode = 1;
 468
 469     /* Setup argument length */
 470     argvlen = malloc(argc*sizeof(size_t));
 471     for (j = 0; j < argc; j++)
 472         argvlen[j] = sdslen(argv[j]);
 473
 474     while(repeat--) {
 475         redisAppendCommandArgv(context,argc,(const char**)argv,argvlen);
 476         while (config.monitor_mode) {
 477             if (cliReadReply(output_raw) != REDIS_OK) exit(1);
 478             fflush(stdout);
 479         }
 480
 481         if (config.pubsub_mode) {
 482             if (!config.raw_output)
 483                 printf("Reading messages... (press Ctrl-C to quit)\n");
 484             while (1) {
 485                 if (cliReadReply(output_raw) != REDIS_OK) exit(1);
 486             }
 487         }
 488
 489         if (cliReadReply(output_raw) != REDIS_OK) {
 490             free(argvlen);
 491             return REDIS_ERR;
 492         } else {
 493             /* Store database number when SELECT was successfully executed. */
 494             if (!strcasecmp(command,"select") && argc == 2)
 495                 config.dbnum = atoi(argv[1]);
 496         }
 497     }
 498
 499     free(argvlen);
 500     return REDIS_OK;
 501 }
 502
 503 /*------------------------------------------------------------------------------
 504  * User interface
 505  *--------------------------------------------------------------------------- */
 506
 507 static int parseOptions(int argc, char **argv) {
 508     int i;
 509
 510     for (i = 1; i < argc; i++) {
 511         int lastarg = i==argc-1;
 512
 513         if (!strcmp(argv[i],"-h") && !lastarg) {
 514             sdsfree(config.hostip);
 515             config.hostip = sdsnew(argv[i+1]);
 516             i++;
 517         } else if (!strcmp(argv[i],"-h") && lastarg) {
 518             usage();
 519         } else if (!strcmp(argv[i],"--help")) {
 520             usage();
 521         } else if (!strcmp(argv[i],"-x")) {
 522             config.stdinarg = 1;
 523         } else if (!strcmp(argv[i],"-p") && !lastarg) {
 524             config.hostport = atoi(argv[i+1]);
 525             i++;
 526         } else if (!strcmp(argv[i],"-s") && !lastarg) {
 527             config.hostsocket = argv[i+1];
 528             i++;
 529         } else if (!strcmp(argv[i],"-r") && !lastarg) {
 530             config.repeat = strtoll(argv[i+1],NULL,10);
 531             i++;
 532         } else if (!strcmp(argv[i],"-n") && !lastarg) {
 533             config.dbnum = atoi(argv[i+1]);
 534             i++;
 535         } else if (!strcmp(argv[i],"-a") && !lastarg) {
 536             config.auth = argv[i+1];
 537             i++;
 538         } else if (!strcmp(argv[i],"--raw")) {
 539             config.raw_output = 1;
 540         } else if (!strcmp(argv[i],"-d") && !lastarg) {
 541             sdsfree(config.mb_delim);
 542             config.mb_delim = sdsnew(argv[i+1]);
 543             i++;
 544         } else if (!strcmp(argv[i],"-v") || !strcmp(argv[i], "--version")) {
 545             sds version = cliVersion();
 546             printf("redis-cli %s\n", version);
 547             sdsfree(version);
 548             exit(0);
 549         } else {
 550             break;
 551         }
 552     }
 553     return i;
 554 }
 555
 556 static sds readArgFromStdin(void) {
 557     char buf[1024];
 558     sds arg = sdsempty();
 559
 560     while(1) {
 561         int nread = read(fileno(stdin),buf,1024);
 562
 563         if (nread == 0) break;
 564         else if (nread == -1) {
 565             perror("Reading from standard input");
 566             exit(1);
 567         }
 568         arg = sdscatlen(arg,buf,nread);
 569     }
 570     return arg;
 571 }
 572
 573 static void usage() {
 574     sds version = cliVersion();
 575     fprintf(stderr,
 576 "redis-cli %s\n"
 577 "\n"
 578 "Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]\n"
 579 "  -h <hostname>    Server hostname (default: 127.0.0.1)\n"
 580 "  -p <port>        Server port (default: 6379)\n"
 581 "  -s <socket>      Server socket (overrides hostname and port)\n"
 582 "  -a <password>    Password to use when connecting to the server\n"
 583 "  -r <repeat>      Execute specified command N times\n"
 584 "  -n <db>          Database number\n"
 585 "  -x               Read last argument from STDIN\n"
 586 "  -d <delimiter>   Multi-bulk delimiter in for raw formatting (default: \\n)\n"
 587 "  --raw            Use raw formatting for replies (default when STDOUT is not a tty)\n"
 588 "  --help           Output this help and exit\n"
 589 "  --version        Output version and exit\n"
 590 "\n"
 591 "Examples:\n"
 592 "  cat /etc/passwd | redis-cli -x set mypasswd\n"
 593 "  redis-cli get mypasswd\n"
 594 "  redis-cli -r 100 lpush mylist x\n"
 595 "\n"
 596 "When no command is given, redis-cli starts in interactive mode.\n"
 597 "Type \"help\" in interactive mode for information on available commands.\n"
 598 "\n",
 599         version);
 600     sdsfree(version);
 601     exit(1);
 602 }
 603
 604 /* Turn the plain C strings into Sds strings */
 605 static char **convertToSds(int count, char** args) {
 606   int j;
 607   char **sds = zmalloc(sizeof(char*)*count);
 608
 609   for(j = 0; j < count; j++)
 610     sds[j] = sdsnew(args[j]);
 611
 612   return sds;
 613 }
 614
 615 #define LINE_BUFLEN 4096
 616 static void repl() {
 617     sds historyfile = NULL;
 618     int history = 0;
 619     char *line;
 620     int argc;
 621     sds *argv;
 622
 623     config.interactive = 1;
 624     linenoiseSetCompletionCallback(completionCallback);
 625
 626     /* Only use history when stdin is a tty. */
 627     if (isatty(fileno(stdin))) {
 628         history = 1;
 629
 630         if (getenv("HOME") != NULL) {
 631             historyfile = sdscatprintf(sdsempty(),"%s/.rediscli_history",getenv("HOME"));
 632             linenoiseHistoryLoad(historyfile);
 633         }
 634     }
 635
 636     while((line = linenoise(context ? "redis> " : "not connected> ")) != NULL) {
 637         if (line[0] != '\0') {
 638             argv = sdssplitargs(line,&argc);
 639             if (history) linenoiseHistoryAdd(line);
 640             if (historyfile) linenoiseHistorySave(historyfile);
 641
 642             if (argv == NULL) {
 643                 printf("Invalid argument(s)\n");
 644                 continue;
 645             } else if (argc > 0) {
 646                 if (strcasecmp(argv[0],"quit") == 0 ||
 647                     strcasecmp(argv[0],"exit") == 0)
 648                 {
 649                     exit(0);
 650                 } else if (argc == 3 && !strcasecmp(argv[0],"connect")) {
 651                     sdsfree(config.hostip);
 652                     config.hostip = sdsnew(argv[1]);
 653                     config.hostport = atoi(argv[2]);
 654                     cliConnect(1);
 655                 } else if (argc == 1 && !strcasecmp(argv[0],"clear")) {
 656                     linenoiseClearScreen();
 657                 } else {
 658                     long long start_time = mstime(), elapsed;
 659
 660                     if (cliSendCommand(argc,argv,1) != REDIS_OK) {
 661                         cliConnect(1);
 662
 663                         /* If we still cannot send the command,
 664                          * print error and abort. */
 665                         if (cliSendCommand(argc,argv,1) != REDIS_OK)
 666                             cliPrintContextErrorAndExit();
 667                     }
 668                     elapsed = mstime()-start_time;
 669                     if (elapsed >= 500) {
 670                         printf("(%.2fs)\n",(double)elapsed/1000);
 671                     }
 672                 }
 673             }
 674             /* Free the argument vector */
 675             while(argc--) sdsfree(argv[argc]);
 676             zfree(argv);
 677         }
 678         /* linenoise() returns malloc-ed lines like readline() */
 679         free(line);
 680     }
 681     exit(0);
 682 }
 683
 684 static int noninteractive(int argc, char **argv) {
 685     int retval = 0;
 686     if (config.stdinarg) {
 687         argv = zrealloc(argv, (argc+1)*sizeof(char*));
 688         argv[argc] = readArgFromStdin();
 689         retval = cliSendCommand(argc+1, argv, config.repeat);
 690     } else {
 691         /* stdin is probably a tty, can be tested with S_ISCHR(s.st_mode) */
 692         retval = cliSendCommand(argc, argv, config.repeat);
 693     }
 694     return retval;
 695 }
 696
 697 int main(int argc, char **argv) {
 698     int firstarg;
 699
 700     config.hostip = sdsnew("127.0.0.1");
 701     config.hostport = 6379;
 702     config.hostsocket = NULL;
 703     config.repeat = 1;
 704     config.dbnum = 0;
 705     config.interactive = 0;
 706     config.shutdown = 0;
 707     config.monitor_mode = 0;
 708     config.pubsub_mode = 0;
 709     config.stdinarg = 0;
 710     config.auth = NULL;
 711     config.raw_output = !isatty(fileno(stdout)) && (getenv("FAKETTY") == NULL);
 712     config.mb_delim = sdsnew("\n");
 713     cliInitHelp();
 714
 715     firstarg = parseOptions(argc,argv);
 716     argc -= firstarg;
 717     argv += firstarg;
 718
 719     /* Try to connect */
 720     if (cliConnect(0) != REDIS_OK) exit(1);
 721
 722     /* Start interactive mode when no command is provided */
 723     if (argc == 0) repl();
 724     /* Otherwise, we have some arguments to execute */
 725     return noninteractive(argc,convertToSds(argc,argv));
 726 }