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 raw_output; /* output mode per command */
  64     int tty; /* flag for default output format */
  65     int stdinarg; /* get last arg from stdin. (-x option) */
  66     char mb_sep;
  67     char *auth;
  68     char *historyfile;
  69 } config;
  70
  71 static void usage();
  72 char *redisGitSHA1(void);
  73 char *redisGitDirty(void);
  74
  75 /*------------------------------------------------------------------------------
  76  * Utility functions
  77  *--------------------------------------------------------------------------- */
  78
  79 static long long mstime(void) {
  80     struct timeval tv;
  81     long long mst;
  82
  83     gettimeofday(&tv, NULL);
  84     mst = ((long)tv.tv_sec)*1000;
  85     mst += tv.tv_usec/1000;
  86     return mst;
  87 }
  88
  89 /*------------------------------------------------------------------------------
  90  * Help functions
  91  *--------------------------------------------------------------------------- */
  92
  93 #define CLI_HELP_COMMAND 1
  94 #define CLI_HELP_GROUP 2
  95
  96 typedef struct {
  97     int type;
  98     int argc;
  99     sds *argv;
 100     sds full;
 101
 102     /* Only used for help on commands */
 103     struct commandHelp *org;
 104 } helpEntry;
 105
 106 static helpEntry *helpEntries;
 107 static int helpEntriesLen;
 108
 109 static sds cliVersion() {
 110     sds version;
 111     version = sdscatprintf(sdsempty(), "%s", REDIS_VERSION);
 112
 113     /* Add git commit and working tree status when available */
 114     if (strtoll(redisGitSHA1(),NULL,16)) {
 115         version = sdscatprintf(version, " (git:%s", redisGitSHA1());
 116         if (strtoll(redisGitDirty(),NULL,10))
 117             version = sdscatprintf(version, "-dirty");
 118         version = sdscat(version, ")");
 119     }
 120     return version;
 121 }
 122
 123 static void cliInitHelp() {
 124     int commandslen = sizeof(commandHelp)/sizeof(struct commandHelp);
 125     int groupslen = sizeof(commandGroups)/sizeof(char*);
 126     int i, len, pos = 0;
 127     helpEntry tmp;
 128
 129     helpEntriesLen = len = commandslen+groupslen;
 130     helpEntries = malloc(sizeof(helpEntry)*len);
 131
 132     for (i = 0; i < groupslen; i++) {
 133         tmp.argc = 1;
 134         tmp.argv = malloc(sizeof(sds));
 135         tmp.argv[0] = sdscatprintf(sdsempty(),"@%s",commandGroups[i]);
 136         tmp.full = tmp.argv[0];
 137         tmp.type = CLI_HELP_GROUP;
 138         tmp.org = NULL;
 139         helpEntries[pos++] = tmp;
 140     }
 141
 142     for (i = 0; i < commandslen; i++) {
 143         tmp.argv = sdssplitargs(commandHelp[i].name,&tmp.argc);
 144         tmp.full = sdsnew(commandHelp[i].name);
 145         tmp.type = CLI_HELP_COMMAND;
 146         tmp.org = &commandHelp[i];
 147         helpEntries[pos++] = tmp;
 148     }
 149 }
 150
 151 /* Output command help to stdout. */
 152 static void cliOutputCommandHelp(struct commandHelp *help, int group) {
 153     printf("\r\n  \x1b[1m%s\x1b[0m \x1b[90m%s\x1b[0m\r\n", help->name, help->params);
 154     printf("  \x1b[33msummary:\x1b[0m %s\r\n", help->summary);
 155     printf("  \x1b[33msince:\x1b[0m %s\r\n", help->since);
 156     if (group) {
 157         printf("  \x1b[33mgroup:\x1b[0m %s\r\n", commandGroups[help->group]);
 158     }
 159 }
 160
 161 /* Print generic help. */
 162 static void cliOutputGenericHelp() {
 163     sds version = cliVersion();
 164     printf(
 165         "redis-cli %s\r\n"
 166         "Type: \"help @<group>\" to get a list of commands in <group>\r\n"
 167         "      \"help <command>\" for help on <command>\r\n"
 168         "      \"help <tab>\" to get a list of possible help topics\r\n"
 169         "      \"quit\" to exit\r\n",
 170         version
 171     );
 172     sdsfree(version);
 173 }
 174
 175 /* Output all command help, filtering by group or command name. */
 176 static void cliOutputHelp(int argc, char **argv) {
 177     int i, j, len;
 178     int group = -1;
 179     helpEntry *entry;
 180     struct commandHelp *help;
 181
 182     if (argc == 0) {
 183         cliOutputGenericHelp();
 184         return;
 185     } else if (argc > 0 && argv[0][0] == '@') {
 186         len = sizeof(commandGroups)/sizeof(char*);
 187         for (i = 0; i < len; i++) {
 188             if (strcasecmp(argv[0]+1,commandGroups[i]) == 0) {
 189                 group = i;
 190                 break;
 191             }
 192         }
 193     }
 194
 195     assert(argc > 0);
 196     for (i = 0; i < helpEntriesLen; i++) {
 197         entry = &helpEntries[i];
 198         if (entry->type != CLI_HELP_COMMAND) continue;
 199
 200         help = entry->org;
 201         if (group == -1) {
 202             /* Compare all arguments */
 203             if (argc == entry->argc) {
 204                 for (j = 0; j < argc; j++) {
 205                     if (strcasecmp(argv[j],entry->argv[j]) != 0) break;
 206                 }
 207                 if (j == argc) {
 208                     cliOutputCommandHelp(help,1);
 209                 }
 210             }
 211         } else {
 212             if (group == help->group) {
 213                 cliOutputCommandHelp(help,0);
 214             }
 215         }
 216     }
 217     printf("\r\n");
 218 }
 219
 220 static void completionCallback(const char *buf, linenoiseCompletions *lc) {
 221     size_t startpos = 0;
 222     int mask;
 223     int i;
 224     size_t matchlen;
 225     sds tmp;
 226
 227     if (strncasecmp(buf,"help ",5) == 0) {
 228         startpos = 5;
 229         while (isspace(buf[startpos])) startpos++;
 230         mask = CLI_HELP_COMMAND | CLI_HELP_GROUP;
 231     } else {
 232         mask = CLI_HELP_COMMAND;
 233     }
 234
 235     for (i = 0; i < helpEntriesLen; i++) {
 236         if (!(helpEntries[i].type & mask)) continue;
 237
 238         matchlen = strlen(buf+startpos);
 239         if (strncasecmp(buf+startpos,helpEntries[i].full,matchlen) == 0) {
 240             tmp = sdsnewlen(buf,startpos);
 241             tmp = sdscat(tmp,helpEntries[i].full);
 242             linenoiseAddCompletion(lc,tmp);
 243             sdsfree(tmp);
 244         }
 245     }
 246 }
 247
 248 /*------------------------------------------------------------------------------
 249  * Networking / parsing
 250  *--------------------------------------------------------------------------- */
 251
 252 /* Send AUTH command to the server */
 253 static int cliAuth() {
 254     redisReply *reply;
 255     if (config.auth == NULL) return REDIS_OK;
 256
 257     reply = redisCommand(context,"AUTH %s",config.auth);
 258     if (reply != NULL) {
 259         freeReplyObject(reply);
 260         return REDIS_OK;
 261     }
 262     return REDIS_ERR;
 263 }
 264
 265 /* Send SELECT dbnum to the server */
 266 static int cliSelect() {
 267     redisReply *reply;
 268     char dbnum[16];
 269     if (config.dbnum == 0) return REDIS_OK;
 270
 271     snprintf(dbnum,sizeof(dbnum),"%d",config.dbnum);
 272     reply = redisCommand(context,"SELECT %s",dbnum);
 273     if (reply != NULL) {
 274         freeReplyObject(reply);
 275         return REDIS_OK;
 276     }
 277     return REDIS_ERR;
 278 }
 279
 280 /* Connect to the client. If force is not zero the connection is performed
 281  * even if there is already a connected socket. */
 282 static int cliConnect(int force) {
 283     if (context == NULL || force) {
 284         if (context != NULL)
 285             redisFree(context);
 286
 287         if (config.hostsocket == NULL) {
 288             context = redisConnect(config.hostip,config.hostport);
 289         } else {
 290             context = redisConnectUnix(config.hostsocket);
 291         }
 292
 293         if (context->err) {
 294             fprintf(stderr,"Could not connect to Redis at ");
 295             if (config.hostsocket == NULL)
 296                 fprintf(stderr,"%s:%d: %s\n",config.hostip,config.hostport,context->errstr);
 297             else
 298                 fprintf(stderr,"%s: %s\n",config.hostsocket,context->errstr);
 299             redisFree(context);
 300             context = NULL;
 301             return REDIS_ERR;
 302         }
 303
 304         /* Do AUTH and select the right DB. */
 305         if (cliAuth() != REDIS_OK)
 306             return REDIS_ERR;
 307         if (cliSelect() != REDIS_OK)
 308             return REDIS_ERR;
 309     }
 310     return REDIS_OK;
 311 }
 312
 313 static void cliPrintContextErrorAndExit() {
 314     if (context == NULL) return;
 315     fprintf(stderr,"Error: %s\n",context->errstr);
 316     exit(1);
 317 }
 318
 319 static sds cliFormatReply(redisReply *r, char *prefix) {
 320     sds out = sdsempty();
 321     switch (r->type) {
 322     case REDIS_REPLY_ERROR:
 323         if (config.tty) out = sdscat(out,"(error) ");
 324         out = sdscatprintf(out,"%s\n", r->str);
 325     break;
 326     case REDIS_REPLY_STATUS:
 327         out = sdscat(out,r->str);
 328         out = sdscat(out,"\n");
 329     break;
 330     case REDIS_REPLY_INTEGER:
 331         if (config.tty) out = sdscat(out,"(integer) ");
 332         out = sdscatprintf(out,"%lld\n",r->integer);
 333     break;
 334     case REDIS_REPLY_STRING:
 335         if (config.raw_output || !config.tty) {
 336             out = sdscatlen(out,r->str,r->len);
 337         } else {
 338             /* If you are producing output for the standard output we want
 339              * a more interesting output with quoted characters and so forth */
 340             out = sdscatrepr(out,r->str,r->len);
 341             out = sdscat(out,"\n");
 342         }
 343     break;
 344     case REDIS_REPLY_NIL:
 345         out = sdscat(out,"(nil)\n");
 346     break;
 347     case REDIS_REPLY_ARRAY:
 348         if (r->elements == 0) {
 349             out = sdscat(out,"(empty list or set)\n");
 350         } else {
 351             unsigned int i, idxlen = 0;
 352             char _prefixlen[16];
 353             char _prefixfmt[16];
 354             sds _prefix;
 355             sds tmp;
 356
 357             /* Calculate chars needed to represent the largest index */
 358             i = r->elements;
 359             do {
 360                 idxlen++;
 361                 i /= 10;
 362             } while(i);
 363
 364             /* Prefix for nested multi bulks should grow with idxlen+2 spaces */
 365             memset(_prefixlen,' ',idxlen+2);
 366             _prefixlen[idxlen+2] = '\0';
 367             _prefix = sdscat(sdsnew(prefix),_prefixlen);
 368
 369             /* Setup prefix format for every entry */
 370             snprintf(_prefixfmt,sizeof(_prefixfmt),"%%s%%%dd) ",idxlen);
 371
 372             for (i = 0; i < r->elements; i++) {
 373                 /* Don't use the prefix for the first element, as the parent
 374                  * caller already prepended the index number. */
 375                 out = sdscatprintf(out,_prefixfmt,i == 0 ? "" : prefix,i+1);
 376
 377                 /* Format the multi bulk entry */
 378                 tmp = cliFormatReply(r->element[i],_prefix);
 379                 out = sdscatlen(out,tmp,sdslen(tmp));
 380                 sdsfree(tmp);
 381             }
 382             sdsfree(_prefix);
 383         }
 384     break;
 385     default:
 386         fprintf(stderr,"Unknown reply type: %d\n", r->type);
 387         exit(1);
 388     }
 389     return out;
 390 }
 391
 392 static int cliReadReply() {
 393     redisReply *reply;
 394     sds out;
 395
 396     if (redisGetReply(context,(void**)&reply) != REDIS_OK) {
 397         if (config.shutdown)
 398             return REDIS_OK;
 399         if (config.interactive) {
 400             /* Filter cases where we should reconnect */
 401             if (context->err == REDIS_ERR_IO && errno == ECONNRESET)
 402                 return REDIS_ERR;
 403             if (context->err == REDIS_ERR_EOF)
 404                 return REDIS_ERR;
 405         }
 406         cliPrintContextErrorAndExit();
 407         return REDIS_ERR; /* avoid compiler warning */
 408     }
 409
 410     out = cliFormatReply(reply,"");
 411     freeReplyObject(reply);
 412     fwrite(out,sdslen(out),1,stdout);
 413     sdsfree(out);
 414     return REDIS_OK;
 415 }
 416
 417 static int cliSendCommand(int argc, char **argv, int repeat) {
 418     char *command = argv[0];
 419     size_t *argvlen;
 420     int j;
 421
 422     if (context == NULL) {
 423         printf("Not connected, please use: connect <host> <port>\n");
 424         return REDIS_OK;
 425     }
 426
 427     config.raw_output = !strcasecmp(command,"info");
 428     if (!strcasecmp(command,"help") || !strcasecmp(command,"?")) {
 429         cliOutputHelp(--argc, ++argv);
 430         return REDIS_OK;
 431     }
 432     if (!strcasecmp(command,"shutdown")) config.shutdown = 1;
 433     if (!strcasecmp(command,"monitor")) config.monitor_mode = 1;
 434     if (!strcasecmp(command,"subscribe") ||
 435         !strcasecmp(command,"psubscribe")) config.pubsub_mode = 1;
 436
 437     /* Setup argument length */
 438     argvlen = malloc(argc*sizeof(size_t));
 439     for (j = 0; j < argc; j++)
 440         argvlen[j] = sdslen(argv[j]);
 441
 442     while(repeat--) {
 443         redisAppendCommandArgv(context,argc,(const char**)argv,argvlen);
 444         while (config.monitor_mode) {
 445             if (cliReadReply() != REDIS_OK) exit(1);
 446             fflush(stdout);
 447         }
 448
 449         if (config.pubsub_mode) {
 450             printf("Reading messages... (press Ctrl-C to quit)\n");
 451             while (1) {
 452                 if (cliReadReply() != REDIS_OK) exit(1);
 453             }
 454         }
 455
 456         if (cliReadReply() != REDIS_OK)
 457             return REDIS_ERR;
 458     }
 459     return REDIS_OK;
 460 }
 461
 462 /*------------------------------------------------------------------------------
 463  * User interface
 464  *--------------------------------------------------------------------------- */
 465
 466 static int parseOptions(int argc, char **argv) {
 467     int i;
 468
 469     for (i = 1; i < argc; i++) {
 470         int lastarg = i==argc-1;
 471
 472         if (!strcmp(argv[i],"-h") && !lastarg) {
 473             sdsfree(config.hostip);
 474             config.hostip = sdsnew(argv[i+1]);
 475             i++;
 476         } else if (!strcmp(argv[i],"-h") && lastarg) {
 477             usage();
 478         } else if (!strcmp(argv[i],"--help")) {
 479             usage();
 480         } else if (!strcmp(argv[i],"-x")) {
 481             config.stdinarg = 1;
 482         } else if (!strcmp(argv[i],"-p") && !lastarg) {
 483             config.hostport = atoi(argv[i+1]);
 484             i++;
 485         } else if (!strcmp(argv[i],"-s") && !lastarg) {
 486             config.hostsocket = argv[i+1];
 487             i++;
 488         } else if (!strcmp(argv[i],"-r") && !lastarg) {
 489             config.repeat = strtoll(argv[i+1],NULL,10);
 490             i++;
 491         } else if (!strcmp(argv[i],"-n") && !lastarg) {
 492             config.dbnum = atoi(argv[i+1]);
 493             i++;
 494         } else if (!strcmp(argv[i],"-a") && !lastarg) {
 495             config.auth = argv[i+1];
 496             i++;
 497         } else if (!strcmp(argv[i],"-v") || !strcmp(argv[i], "--version")) {
 498             sds version = cliVersion();
 499             printf("redis-cli %s\n", version);
 500             sdsfree(version);
 501             exit(0);
 502         } else {
 503             break;
 504         }
 505     }
 506     return i;
 507 }
 508
 509 static sds readArgFromStdin(void) {
 510     char buf[1024];
 511     sds arg = sdsempty();
 512
 513     while(1) {
 514         int nread = read(fileno(stdin),buf,1024);
 515
 516         if (nread == 0) break;
 517         else if (nread == -1) {
 518             perror("Reading from standard input");
 519             exit(1);
 520         }
 521         arg = sdscatlen(arg,buf,nread);
 522     }
 523     return arg;
 524 }
 525
 526 static void usage() {
 527     sds version = cliVersion();
 528     fprintf(stderr,
 529 "redis-cli %s\n"
 530 "\n"
 531 "Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]\n"
 532 "  -h <hostname>    Server hostname (default: 127.0.0.1)\n"
 533 "  -p <port>        Server port (default: 6379)\n"
 534 "  -s <socket>      Server socket (overrides hostname and port)\n"
 535 "  -a <password>    Password to use when connecting to the server\n"
 536 "  -r <repeat>      Execute specified command N times\n"
 537 "  -n <db>          Database number\n"
 538 "  -x               Read last argument from STDIN\n"
 539 "  --help           Output this help and exit\n"
 540 "  --version        Output version and exit\n"
 541 "\n"
 542 "Examples:\n"
 543 "  cat /etc/passwd | redis-cli -x set mypasswd\n"
 544 "  redis-cli get mypasswd\n"
 545 "  redis-cli -r 100 lpush mylist x\n"
 546 "\n"
 547 "When no command is given, redis-cli starts in interactive mode.\n"
 548 "Type \"help\" in interactive mode for information on available commands.\n"
 549 "\n",
 550         version);
 551     sdsfree(version);
 552     exit(1);
 553 }
 554
 555 /* Turn the plain C strings into Sds strings */
 556 static char **convertToSds(int count, char** args) {
 557   int j;
 558   char **sds = zmalloc(sizeof(char*)*count);
 559
 560   for(j = 0; j < count; j++)
 561     sds[j] = sdsnew(args[j]);
 562
 563   return sds;
 564 }
 565
 566 #define LINE_BUFLEN 4096
 567 static void repl() {
 568     int argc, j;
 569     char *line;
 570     sds *argv;
 571
 572     config.interactive = 1;
 573     linenoiseSetCompletionCallback(completionCallback);
 574
 575     while((line = linenoise(context ? "redis> " : "not connected> ")) != NULL) {
 576         if (line[0] != '\0') {
 577             argv = sdssplitargs(line,&argc);
 578             linenoiseHistoryAdd(line);
 579             if (config.historyfile) linenoiseHistorySave(config.historyfile);
 580             if (argv == NULL) {
 581                 printf("Invalid argument(s)\n");
 582                 continue;
 583             } else if (argc > 0) {
 584                 if (strcasecmp(argv[0],"quit") == 0 ||
 585                     strcasecmp(argv[0],"exit") == 0)
 586                 {
 587                     exit(0);
 588                 } else if (argc == 3 && !strcasecmp(argv[0],"connect")) {
 589                     sdsfree(config.hostip);
 590                     config.hostip = sdsnew(argv[1]);
 591                     config.hostport = atoi(argv[2]);
 592                     cliConnect(1);
 593                 } else if (argc == 1 && !strcasecmp(argv[0],"clear")) {
 594                     linenoiseClearScreen();
 595                 } else {
 596                     long long start_time = mstime(), elapsed;
 597
 598                     if (cliSendCommand(argc,argv,1) != REDIS_OK) {
 599                         cliConnect(1);
 600
 601                         /* If we still cannot send the command,
 602                          * print error and abort. */
 603                         if (cliSendCommand(argc,argv,1) != REDIS_OK)
 604                             cliPrintContextErrorAndExit();
 605                     }
 606                     elapsed = mstime()-start_time;
 607                     if (elapsed >= 500) {
 608                         printf("(%.2fs)\n",(double)elapsed/1000);
 609                     }
 610                 }
 611             }
 612             /* Free the argument vector */
 613             for (j = 0; j < argc; j++)
 614                 sdsfree(argv[j]);
 615             zfree(argv);
 616         }
 617         /* linenoise() returns malloc-ed lines like readline() */
 618         free(line);
 619     }
 620     exit(0);
 621 }
 622
 623 static int noninteractive(int argc, char **argv) {
 624     int retval = 0;
 625     if (config.stdinarg) {
 626         argv = zrealloc(argv, (argc+1)*sizeof(char*));
 627         argv[argc] = readArgFromStdin();
 628         retval = cliSendCommand(argc+1, argv, config.repeat);
 629     } else {
 630         /* stdin is probably a tty, can be tested with S_ISCHR(s.st_mode) */
 631         retval = cliSendCommand(argc, argv, config.repeat);
 632     }
 633     return retval;
 634 }
 635
 636 int main(int argc, char **argv) {
 637     int firstarg;
 638
 639     config.hostip = sdsnew("127.0.0.1");
 640     config.hostport = 6379;
 641     config.hostsocket = NULL;
 642     config.repeat = 1;
 643     config.dbnum = 0;
 644     config.interactive = 0;
 645     config.shutdown = 0;
 646     config.monitor_mode = 0;
 647     config.pubsub_mode = 0;
 648     config.raw_output = 0;
 649     config.stdinarg = 0;
 650     config.auth = NULL;
 651     config.historyfile = NULL;
 652     config.tty = isatty(fileno(stdout)) || (getenv("FAKETTY") != NULL);
 653     config.mb_sep = '\n';
 654     cliInitHelp();
 655
 656     if (getenv("HOME") != NULL) {
 657         config.historyfile = malloc(256);
 658         snprintf(config.historyfile,256,"%s/.rediscli_history",getenv("HOME"));
 659         linenoiseHistoryLoad(config.historyfile);
 660     }
 661
 662     firstarg = parseOptions(argc,argv);
 663     argc -= firstarg;
 664     argv += firstarg;
 665
 666     /* Try to connect */
 667     if (cliConnect(0) != REDIS_OK) exit(1);
 668
 669     /* Start interactive mode when no command is provided */
 670     if (argc == 0) repl();
 671     /* Otherwise, we have some arguments to execute */
 672     return noninteractive(argc,convertToSds(argc,argv));
 673 }