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     char prompt[32];
  68 } config;
  69
  70 static void usage();
  71 char *redisGitSHA1(void);
  72 char *redisGitDirty(void);
  73
  74 /*------------------------------------------------------------------------------
  75  * Utility functions
  76  *--------------------------------------------------------------------------- */
  77
  78 static long long mstime(void) {
  79     struct timeval tv;
  80     long long mst;
  81
  82     gettimeofday(&tv, NULL);
  83     mst = ((long)tv.tv_sec)*1000;
  84     mst += tv.tv_usec/1000;
  85     return mst;
  86 }
  87
  88 static void cliRefreshPrompt(void) {
  89     if (config.dbnum == 0)
  90         snprintf(config.prompt,sizeof(config.prompt),"redis %s:%d> ",
  91             config.hostip, config.hostport);
  92     else
  93         snprintf(config.prompt,sizeof(config.prompt),"redis %s:%d[%d]> ",
  94             config.hostip, config.hostport, config.dbnum);
  95 }
  96
  97 /*------------------------------------------------------------------------------
  98  * Help functions
  99  *--------------------------------------------------------------------------- */
 100
 101 #define CLI_HELP_COMMAND 1
 102 #define CLI_HELP_GROUP 2
 103
 104 typedef struct {
 105     int type;
 106     int argc;
 107     sds *argv;
 108     sds full;
 109
 110     /* Only used for help on commands */
 111     struct commandHelp *org;
 112 } helpEntry;
 113
 114 static helpEntry *helpEntries;
 115 static int helpEntriesLen;
 116
 117 static sds cliVersion() {
 118     sds version;
 119     version = sdscatprintf(sdsempty(), "%s", REDIS_VERSION);
 120
 121     /* Add git commit and working tree status when available */
 122     if (strtoll(redisGitSHA1(),NULL,16)) {
 123         version = sdscatprintf(version, " (git:%s", redisGitSHA1());
 124         if (strtoll(redisGitDirty(),NULL,10))
 125             version = sdscatprintf(version, "-dirty");
 126         version = sdscat(version, ")");
 127     }
 128     return version;
 129 }
 130
 131 static void cliInitHelp() {
 132     int commandslen = sizeof(commandHelp)/sizeof(struct commandHelp);
 133     int groupslen = sizeof(commandGroups)/sizeof(char*);
 134     int i, len, pos = 0;
 135     helpEntry tmp;
 136
 137     helpEntriesLen = len = commandslen+groupslen;
 138     helpEntries = malloc(sizeof(helpEntry)*len);
 139
 140     for (i = 0; i < groupslen; i++) {
 141         tmp.argc = 1;
 142         tmp.argv = malloc(sizeof(sds));
 143         tmp.argv[0] = sdscatprintf(sdsempty(),"@%s",commandGroups[i]);
 144         tmp.full = tmp.argv[0];
 145         tmp.type = CLI_HELP_GROUP;
 146         tmp.org = NULL;
 147         helpEntries[pos++] = tmp;
 148     }
 149
 150     for (i = 0; i < commandslen; i++) {
 151         tmp.argv = sdssplitargs(commandHelp[i].name,&tmp.argc);
 152         tmp.full = sdsnew(commandHelp[i].name);
 153         tmp.type = CLI_HELP_COMMAND;
 154         tmp.org = &commandHelp[i];
 155         helpEntries[pos++] = tmp;
 156     }
 157 }
 158
 159 /* Output command help to stdout. */
 160 static void cliOutputCommandHelp(struct commandHelp *help, int group) {
 161     printf("\r\n  \x1b[1m%s\x1b[0m \x1b[90m%s\x1b[0m\r\n", help->name, help->params);
 162     printf("  \x1b[33msummary:\x1b[0m %s\r\n", help->summary);
 163     printf("  \x1b[33msince:\x1b[0m %s\r\n", help->since);
 164     if (group) {
 165         printf("  \x1b[33mgroup:\x1b[0m %s\r\n", commandGroups[help->group]);
 166     }
 167 }
 168
 169 /* Print generic help. */
 170 static void cliOutputGenericHelp() {
 171     sds version = cliVersion();
 172     printf(
 173         "redis-cli %s\r\n"
 174         "Type: \"help @<group>\" to get a list of commands in <group>\r\n"
 175         "      \"help <command>\" for help on <command>\r\n"
 176         "      \"help <tab>\" to get a list of possible help topics\r\n"
 177         "      \"quit\" to exit\r\n",
 178         version
 179     );
 180     sdsfree(version);
 181 }
 182
 183 /* Output all command help, filtering by group or command name. */
 184 static void cliOutputHelp(int argc, char **argv) {
 185     int i, j, len;
 186     int group = -1;
 187     helpEntry *entry;
 188     struct commandHelp *help;
 189
 190     if (argc == 0) {
 191         cliOutputGenericHelp();
 192         return;
 193     } else if (argc > 0 && argv[0][0] == '@') {
 194         len = sizeof(commandGroups)/sizeof(char*);
 195         for (i = 0; i < len; i++) {
 196             if (strcasecmp(argv[0]+1,commandGroups[i]) == 0) {
 197                 group = i;
 198                 break;
 199             }
 200         }
 201     }
 202
 203     assert(argc > 0);
 204     for (i = 0; i < helpEntriesLen; i++) {
 205         entry = &helpEntries[i];
 206         if (entry->type != CLI_HELP_COMMAND) continue;
 207
 208         help = entry->org;
 209         if (group == -1) {
 210             /* Compare all arguments */
 211             if (argc == entry->argc) {
 212                 for (j = 0; j < argc; j++) {
 213                     if (strcasecmp(argv[j],entry->argv[j]) != 0) break;
 214                 }
 215                 if (j == argc) {
 216                     cliOutputCommandHelp(help,1);
 217                 }
 218             }
 219         } else {
 220             if (group == help->group) {
 221                 cliOutputCommandHelp(help,0);
 222             }
 223         }
 224     }
 225     printf("\r\n");
 226 }
 227
 228 static void completionCallback(const char *buf, linenoiseCompletions *lc) {
 229     size_t startpos = 0;
 230     int mask;
 231     int i;
 232     size_t matchlen;
 233     sds tmp;
 234
 235     if (strncasecmp(buf,"help ",5) == 0) {
 236         startpos = 5;
 237         while (isspace(buf[startpos])) startpos++;
 238         mask = CLI_HELP_COMMAND | CLI_HELP_GROUP;
 239     } else {
 240         mask = CLI_HELP_COMMAND;
 241     }
 242
 243     for (i = 0; i < helpEntriesLen; i++) {
 244         if (!(helpEntries[i].type & mask)) continue;
 245
 246         matchlen = strlen(buf+startpos);
 247         if (strncasecmp(buf+startpos,helpEntries[i].full,matchlen) == 0) {
 248             tmp = sdsnewlen(buf,startpos);
 249             tmp = sdscat(tmp,helpEntries[i].full);
 250             linenoiseAddCompletion(lc,tmp);
 251             sdsfree(tmp);
 252         }
 253     }
 254 }
 255
 256 /*------------------------------------------------------------------------------
 257  * Networking / parsing
 258  *--------------------------------------------------------------------------- */
 259
 260 /* Send AUTH command to the server */
 261 static int cliAuth() {
 262     redisReply *reply;
 263     if (config.auth == NULL) return REDIS_OK;
 264
 265     reply = redisCommand(context,"AUTH %s",config.auth);
 266     if (reply != NULL) {
 267         freeReplyObject(reply);
 268         return REDIS_OK;
 269     }
 270     return REDIS_ERR;
 271 }
 272
 273 /* Send SELECT dbnum to the server */
 274 static int cliSelect() {
 275     redisReply *reply;
 276     if (config.dbnum == 0) return REDIS_OK;
 277
 278     reply = redisCommand(context,"SELECT %d",config.dbnum);
 279     if (reply != NULL) {
 280         freeReplyObject(reply);
 281         return REDIS_OK;
 282     }
 283     return REDIS_ERR;
 284 }
 285
 286 /* Connect to the client. If force is not zero the connection is performed
 287  * even if there is already a connected socket. */
 288 static int cliConnect(int force) {
 289     if (context == NULL || force) {
 290         if (context != NULL)
 291             redisFree(context);
 292
 293         if (config.hostsocket == NULL) {
 294             context = redisConnect(config.hostip,config.hostport);
 295         } else {
 296             context = redisConnectUnix(config.hostsocket);
 297         }
 298
 299         if (context->err) {
 300             fprintf(stderr,"Could not connect to Redis at ");
 301             if (config.hostsocket == NULL)
 302                 fprintf(stderr,"%s:%d: %s\n",config.hostip,config.hostport,context->errstr);
 303             else
 304                 fprintf(stderr,"%s: %s\n",config.hostsocket,context->errstr);
 305             redisFree(context);
 306             context = NULL;
 307             return REDIS_ERR;
 308         }
 309
 310         /* Do AUTH and select the right DB. */
 311         if (cliAuth() != REDIS_OK)
 312             return REDIS_ERR;
 313         if (cliSelect() != REDIS_OK)
 314             return REDIS_ERR;
 315     }
 316     return REDIS_OK;
 317 }
 318
 319 static void cliPrintContextError() {
 320     if (context == NULL) return;
 321     fprintf(stderr,"Error: %s\n",context->errstr);
 322 }
 323
 324 static sds cliFormatReplyTTY(redisReply *r, char *prefix) {
 325     sds out = sdsempty();
 326     switch (r->type) {
 327     case REDIS_REPLY_ERROR:
 328         out = sdscatprintf(out,"(error) %s\n", r->str);
 329     break;
 330     case REDIS_REPLY_STATUS:
 331         out = sdscat(out,r->str);
 332         out = sdscat(out,"\n");
 333     break;
 334     case REDIS_REPLY_INTEGER:
 335         out = sdscatprintf(out,"(integer) %lld\n",r->integer);
 336     break;
 337     case REDIS_REPLY_STRING:
 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     break;
 343     case REDIS_REPLY_NIL:
 344         out = sdscat(out,"(nil)\n");
 345     break;
 346     case REDIS_REPLY_ARRAY:
 347         if (r->elements == 0) {
 348             out = sdscat(out,"(empty list or set)\n");
 349         } else {
 350             unsigned int i, idxlen = 0;
 351             char _prefixlen[16];
 352             char _prefixfmt[16];
 353             sds _prefix;
 354             sds tmp;
 355
 356             /* Calculate chars needed to represent the largest index */
 357             i = r->elements;
 358             do {
 359                 idxlen++;
 360                 i /= 10;
 361             } while(i);
 362
 363             /* Prefix for nested multi bulks should grow with idxlen+2 spaces */
 364             memset(_prefixlen,' ',idxlen+2);
 365             _prefixlen[idxlen+2] = '\0';
 366             _prefix = sdscat(sdsnew(prefix),_prefixlen);
 367
 368             /* Setup prefix format for every entry */
 369             snprintf(_prefixfmt,sizeof(_prefixfmt),"%%s%%%dd) ",idxlen);
 370
 371             for (i = 0; i < r->elements; i++) {
 372                 /* Don't use the prefix for the first element, as the parent
 373                  * caller already prepended the index number. */
 374                 out = sdscatprintf(out,_prefixfmt,i == 0 ? "" : prefix,i+1);
 375
 376                 /* Format the multi bulk entry */
 377                 tmp = cliFormatReplyTTY(r->element[i],_prefix);
 378                 out = sdscatlen(out,tmp,sdslen(tmp));
 379                 sdsfree(tmp);
 380             }
 381             sdsfree(_prefix);
 382         }
 383     break;
 384     default:
 385         fprintf(stderr,"Unknown reply type: %d\n", r->type);
 386         exit(1);
 387     }
 388     return out;
 389 }
 390
 391 static sds cliFormatReplyRaw(redisReply *r) {
 392     sds out = sdsempty(), tmp;
 393     size_t i;
 394
 395     switch (r->type) {
 396     case REDIS_REPLY_NIL:
 397         /* Nothing... */
 398         break;
 399     case REDIS_REPLY_ERROR:
 400         out = sdscatlen(out,r->str,r->len);
 401         out = sdscatlen(out,"\n",1);
 402         break;
 403     case REDIS_REPLY_STATUS:
 404     case REDIS_REPLY_STRING:
 405         out = sdscatlen(out,r->str,r->len);
 406         break;
 407     case REDIS_REPLY_INTEGER:
 408         out = sdscatprintf(out,"%lld",r->integer);
 409         break;
 410     case REDIS_REPLY_ARRAY:
 411         for (i = 0; i < r->elements; i++) {
 412             if (i > 0) out = sdscat(out,config.mb_delim);
 413             tmp = cliFormatReplyRaw(r->element[i]);
 414             out = sdscatlen(out,tmp,sdslen(tmp));
 415             sdsfree(tmp);
 416         }
 417         break;
 418     default:
 419         fprintf(stderr,"Unknown reply type: %d\n", r->type);
 420         exit(1);
 421     }
 422     return out;
 423 }
 424
 425 static int cliReadReply(int output_raw_strings) {
 426     void *_reply;
 427     redisReply *reply;
 428     sds out;
 429
 430     if (redisGetReply(context,&_reply) != REDIS_OK) {
 431         if (config.shutdown)
 432             return REDIS_OK;
 433         if (config.interactive) {
 434             /* Filter cases where we should reconnect */
 435             if (context->err == REDIS_ERR_IO && errno == ECONNRESET)
 436                 return REDIS_ERR;
 437             if (context->err == REDIS_ERR_EOF)
 438                 return REDIS_ERR;
 439         }
 440         cliPrintContextError();
 441         exit(1);
 442         return REDIS_ERR; /* avoid compiler warning */
 443     }
 444
 445     reply = (redisReply*)_reply;
 446     if (output_raw_strings) {
 447         out = cliFormatReplyRaw(reply);
 448     } else {
 449         if (config.raw_output) {
 450             out = cliFormatReplyRaw(reply);
 451             out = sdscat(out,"\n");
 452         } else {
 453             out = cliFormatReplyTTY(reply,"");
 454         }
 455     }
 456     fwrite(out,sdslen(out),1,stdout);
 457     sdsfree(out);
 458     freeReplyObject(reply);
 459     return REDIS_OK;
 460 }
 461
 462 static int cliSendCommand(int argc, char **argv, int repeat) {
 463     char *command = argv[0];
 464     size_t *argvlen;
 465     int j, output_raw;
 466
 467     if (context == NULL) return REDIS_ERR;
 468
 469     output_raw = 0;
 470     if (!strcasecmp(command,"info") ||
 471         (argc == 2 && !strcasecmp(command,"cluster") &&
 472                       (!strcasecmp(argv[1],"nodes") ||
 473                        !strcasecmp(argv[1],"info"))) ||
 474         (argc == 2 && !strcasecmp(command,"client") &&
 475                        !strcasecmp(argv[1],"list")))
 476
 477     {
 478         output_raw = 1;
 479     }
 480
 481     if (!strcasecmp(command,"help") || !strcasecmp(command,"?")) {
 482         cliOutputHelp(--argc, ++argv);
 483         return REDIS_OK;
 484     }
 485     if (!strcasecmp(command,"shutdown")) config.shutdown = 1;
 486     if (!strcasecmp(command,"monitor")) config.monitor_mode = 1;
 487     if (!strcasecmp(command,"subscribe") ||
 488         !strcasecmp(command,"psubscribe")) config.pubsub_mode = 1;
 489
 490     /* Setup argument length */
 491     argvlen = malloc(argc*sizeof(size_t));
 492     for (j = 0; j < argc; j++)
 493         argvlen[j] = sdslen(argv[j]);
 494
 495     while(repeat--) {
 496         redisAppendCommandArgv(context,argc,(const char**)argv,argvlen);
 497         while (config.monitor_mode) {
 498             if (cliReadReply(output_raw) != REDIS_OK) exit(1);
 499             fflush(stdout);
 500         }
 501
 502         if (config.pubsub_mode) {
 503             if (!config.raw_output)
 504                 printf("Reading messages... (press Ctrl-C to quit)\n");
 505             while (1) {
 506                 if (cliReadReply(output_raw) != REDIS_OK) exit(1);
 507             }
 508         }
 509
 510         if (cliReadReply(output_raw) != REDIS_OK) {
 511             free(argvlen);
 512             return REDIS_ERR;
 513         } else {
 514             /* Store database number when SELECT was successfully executed. */
 515             if (!strcasecmp(command,"select") && argc == 2) {
 516                 config.dbnum = atoi(argv[1]);
 517                 cliRefreshPrompt();
 518             }
 519         }
 520     }
 521
 522     free(argvlen);
 523     return REDIS_OK;
 524 }
 525
 526 /*------------------------------------------------------------------------------
 527  * User interface
 528  *--------------------------------------------------------------------------- */
 529
 530 static int parseOptions(int argc, char **argv) {
 531     int i;
 532
 533     for (i = 1; i < argc; i++) {
 534         int lastarg = i==argc-1;
 535
 536         if (!strcmp(argv[i],"-h") && !lastarg) {
 537             sdsfree(config.hostip);
 538             config.hostip = sdsnew(argv[i+1]);
 539             i++;
 540         } else if (!strcmp(argv[i],"-h") && lastarg) {
 541             usage();
 542         } else if (!strcmp(argv[i],"--help")) {
 543             usage();
 544         } else if (!strcmp(argv[i],"-x")) {
 545             config.stdinarg = 1;
 546         } else if (!strcmp(argv[i],"-p") && !lastarg) {
 547             config.hostport = atoi(argv[i+1]);
 548             i++;
 549         } else if (!strcmp(argv[i],"-s") && !lastarg) {
 550             config.hostsocket = argv[i+1];
 551             i++;
 552         } else if (!strcmp(argv[i],"-r") && !lastarg) {
 553             config.repeat = strtoll(argv[i+1],NULL,10);
 554             i++;
 555         } else if (!strcmp(argv[i],"-n") && !lastarg) {
 556             config.dbnum = atoi(argv[i+1]);
 557             i++;
 558         } else if (!strcmp(argv[i],"-a") && !lastarg) {
 559             config.auth = argv[i+1];
 560             i++;
 561         } else if (!strcmp(argv[i],"--raw")) {
 562             config.raw_output = 1;
 563         } else if (!strcmp(argv[i],"-d") && !lastarg) {
 564             sdsfree(config.mb_delim);
 565             config.mb_delim = sdsnew(argv[i+1]);
 566             i++;
 567         } else if (!strcmp(argv[i],"-v") || !strcmp(argv[i], "--version")) {
 568             sds version = cliVersion();
 569             printf("redis-cli %s\n", version);
 570             sdsfree(version);
 571             exit(0);
 572         } else {
 573             break;
 574         }
 575     }
 576     return i;
 577 }
 578
 579 static sds readArgFromStdin(void) {
 580     char buf[1024];
 581     sds arg = sdsempty();
 582
 583     while(1) {
 584         int nread = read(fileno(stdin),buf,1024);
 585
 586         if (nread == 0) break;
 587         else if (nread == -1) {
 588             perror("Reading from standard input");
 589             exit(1);
 590         }
 591         arg = sdscatlen(arg,buf,nread);
 592     }
 593     return arg;
 594 }
 595
 596 static void usage() {
 597     sds version = cliVersion();
 598     fprintf(stderr,
 599 "redis-cli %s\n"
 600 "\n"
 601 "Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]\n"
 602 "  -h <hostname>    Server hostname (default: 127.0.0.1)\n"
 603 "  -p <port>        Server port (default: 6379)\n"
 604 "  -s <socket>      Server socket (overrides hostname and port)\n"
 605 "  -a <password>    Password to use when connecting to the server\n"
 606 "  -r <repeat>      Execute specified command N times\n"
 607 "  -n <db>          Database number\n"
 608 "  -x               Read last argument from STDIN\n"
 609 "  -d <delimiter>   Multi-bulk delimiter in for raw formatting (default: \\n)\n"
 610 "  --raw            Use raw formatting for replies (default when STDOUT is not a tty)\n"
 611 "  --help           Output this help and exit\n"
 612 "  --version        Output version and exit\n"
 613 "\n"
 614 "Examples:\n"
 615 "  cat /etc/passwd | redis-cli -x set mypasswd\n"
 616 "  redis-cli get mypasswd\n"
 617 "  redis-cli -r 100 lpush mylist x\n"
 618 "\n"
 619 "When no command is given, redis-cli starts in interactive mode.\n"
 620 "Type \"help\" in interactive mode for information on available commands.\n"
 621 "\n",
 622         version);
 623     sdsfree(version);
 624     exit(1);
 625 }
 626
 627 /* Turn the plain C strings into Sds strings */
 628 static char **convertToSds(int count, char** args) {
 629   int j;
 630   char **sds = zmalloc(sizeof(char*)*count);
 631
 632   for(j = 0; j < count; j++)
 633     sds[j] = sdsnew(args[j]);
 634
 635   return sds;
 636 }
 637
 638 #define LINE_BUFLEN 4096
 639 static void repl() {
 640     sds historyfile = NULL;
 641     int history = 0;
 642     char *line;
 643     int argc;
 644     sds *argv;
 645
 646     config.interactive = 1;
 647     linenoiseSetCompletionCallback(completionCallback);
 648
 649     /* Only use history when stdin is a tty. */
 650     if (isatty(fileno(stdin))) {
 651         history = 1;
 652
 653         if (getenv("HOME") != NULL) {
 654             historyfile = sdscatprintf(sdsempty(),"%s/.rediscli_history",getenv("HOME"));
 655             linenoiseHistoryLoad(historyfile);
 656         }
 657     }
 658
 659     cliRefreshPrompt();
 660     while((line = linenoise(context ? config.prompt : "not connected> ")) != NULL) {
 661         if (line[0] != '\0') {
 662             argv = sdssplitargs(line,&argc);
 663             if (history) linenoiseHistoryAdd(line);
 664             if (historyfile) linenoiseHistorySave(historyfile);
 665
 666             if (argv == NULL) {
 667                 printf("Invalid argument(s)\n");
 668                 continue;
 669             } else if (argc > 0) {
 670                 if (strcasecmp(argv[0],"quit") == 0 ||
 671                     strcasecmp(argv[0],"exit") == 0)
 672                 {
 673                     exit(0);
 674                 } else if (argc == 3 && !strcasecmp(argv[0],"connect")) {
 675                     sdsfree(config.hostip);
 676                     config.hostip = sdsnew(argv[1]);
 677                     config.hostport = atoi(argv[2]);
 678                     cliConnect(1);
 679                 } else if (argc == 1 && !strcasecmp(argv[0],"clear")) {
 680                     linenoiseClearScreen();
 681                 } else {
 682                     long long start_time = mstime(), elapsed;
 683                     int repeat, skipargs = 0;
 684
 685                     repeat = atoi(argv[0]);
 686                     if (repeat) {
 687                         skipargs = 1;
 688                     } else {
 689                         repeat = 1;
 690                     }
 691
 692                     if (cliSendCommand(argc-skipargs,argv+skipargs,repeat)
 693                         != REDIS_OK)
 694                     {
 695                         cliConnect(1);
 696
 697                         /* If we still cannot send the command print error.
 698                          * We'll try to reconnect the next time. */
 699                         if (cliSendCommand(argc-skipargs,argv+skipargs,repeat)
 700                             != REDIS_OK)
 701                             cliPrintContextError();
 702                     }
 703                     elapsed = mstime()-start_time;
 704                     if (elapsed >= 500) {
 705                         printf("(%.2fs)\n",(double)elapsed/1000);
 706                     }
 707                 }
 708             }
 709             /* Free the argument vector */
 710             while(argc--) sdsfree(argv[argc]);
 711             zfree(argv);
 712         }
 713         /* linenoise() returns malloc-ed lines like readline() */
 714         free(line);
 715     }
 716     exit(0);
 717 }
 718
 719 static int noninteractive(int argc, char **argv) {
 720     int retval = 0;
 721     if (config.stdinarg) {
 722         argv = zrealloc(argv, (argc+1)*sizeof(char*));
 723         argv[argc] = readArgFromStdin();
 724         retval = cliSendCommand(argc+1, argv, config.repeat);
 725     } else {
 726         /* stdin is probably a tty, can be tested with S_ISCHR(s.st_mode) */
 727         retval = cliSendCommand(argc, argv, config.repeat);
 728     }
 729     return retval;
 730 }
 731
 732 int main(int argc, char **argv) {
 733     int firstarg;
 734
 735     config.hostip = sdsnew("127.0.0.1");
 736     config.hostport = 6379;
 737     config.hostsocket = NULL;
 738     config.repeat = 1;
 739     config.dbnum = 0;
 740     config.interactive = 0;
 741     config.shutdown = 0;
 742     config.monitor_mode = 0;
 743     config.pubsub_mode = 0;
 744     config.stdinarg = 0;
 745     config.auth = NULL;
 746     config.raw_output = !isatty(fileno(stdout)) && (getenv("FAKETTY") == NULL);
 747     config.mb_delim = sdsnew("\n");
 748     cliInitHelp();
 749
 750     firstarg = parseOptions(argc,argv);
 751     argc -= firstarg;
 752     argv += firstarg;
 753
 754     /* Start interactive mode when no command is provided */
 755     if (argc == 0) {
 756         /* Note that in repl mode we don't abort on connection error.
 757          * A new attempt will be performed for every command send. */
 758         cliConnect(0);
 759         repl();
 760     }
 761
 762     /* Otherwise, we have some arguments to execute */
 763     if (cliConnect(0) != REDIS_OK) exit(1);
 764     return noninteractive(argc,convertToSds(argc,argv));
 765 }