#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
+#include <errno.h>
+#include <sys/stat.h>
#include "anet.h"
#include "sds.h"
#include "zmalloc.h"
#include "linenoise.h"
-#define REDIS_CMD_INLINE 1
-#define REDIS_CMD_BULK 2
-#define REDIS_CMD_MULTIBULK 4
-
#define REDIS_NOTUSED(V) ((void) V)
static struct config {
int hostport;
long repeat;
int dbnum;
- int argn_from_stdin;
int interactive;
int shutdown;
int monitor_mode;
int pubsub_mode;
- int raw_output;
+ int raw_output; /* output mode per command */
+ int tty; /* flag for default output format */
+ int stdinarg; /* get last arg from stdin. (-x option) */
+ char mb_sep;
char *auth;
char *historyfile;
} config;
static int cliReadReply(int fd);
static void usage();
-static int cliConnect(void) {
+/* Connect to the client. If force is not zero the connection is performed
+ * even if there is already a connected socket. */
+static int cliConnect(int force) {
char err[ANET_ERR_LEN];
static int fd = ANET_ERR;
- if (fd == ANET_ERR) {
+ if (fd == ANET_ERR || force) {
+ if (force) close(fd);
fd = anetTcpConnect(err,config.hostip,config.hostport);
if (fd == ANET_ERR) {
fprintf(stderr, "Could not connect to Redis at %s:%d: %s", config.hostip, config.hostport, err);
ssize_t ret;
ret = read(fd,&c,1);
- if (ret == -1) {
+ if (ret <= 0) {
sdsfree(line);
return NULL;
} else if ((ret == 0) || (c == '\n')) {
if (reply == NULL) return 1;
if (!quiet)
- printf("%s\n", reply);
+ printf("%s", reply);
sdsfree(reply);
return 0;
}
}
s++;
}
- printf("\"\n");
+ printf("\"");
}
static int cliReadBulkReply(int fd) {
reply = zmalloc(bulklen);
anetRead(fd,reply,bulklen);
anetRead(fd,crlf,2);
- if (config.raw_output || !isatty(fileno(stdout))) {
+ if (config.raw_output || !config.tty) {
if (bulklen && fwrite(reply,bulklen,1,stdout) == 0) {
zfree(reply);
return 1;
static int cliReadMultiBulkReply(int fd) {
sds replylen = cliReadLine(fd);
int elements, c = 1;
+ int retval = 0;
if (replylen == NULL) return 1;
elements = atoi(replylen);
printf("(empty list or set)\n");
}
while(elements--) {
- printf("%d. ", c);
- if (cliReadReply(fd)) return 1;
+ if (config.tty) printf("%d. ", c);
+ if (cliReadReply(fd)) retval = 1;
+ if (elements) printf("%c",config.mb_sep);
c++;
}
- return 0;
+ return retval;
}
static int cliReadReply(int fd) {
char type;
+ int nread;
- if (anetRead(fd,&type,1) <= 0) {
+ if ((nread = anetRead(fd,&type,1)) <= 0) {
if (config.shutdown) return 0;
- exit(1);
+ if (config.interactive &&
+ (nread == 0 || (nread == -1 && errno == ECONNRESET)))
+ {
+ return ECONNRESET;
+ } else {
+ printf("I/O error while reading from socket: %s",strerror(errno));
+ exit(1);
+ }
}
switch(type) {
case '-':
- printf("(error) ");
+ if (config.tty) printf("(error) ");
cliReadSingleLineReply(fd,0);
return 1;
case '+':
return cliReadSingleLineReply(fd,0);
case ':':
- printf("(integer) ");
+ if (config.tty) printf("(integer) ");
return cliReadSingleLineReply(fd,0);
case '$':
return cliReadBulkReply(fd);
case '*':
return cliReadMultiBulkReply(fd);
default:
- printf("protocol error, got '%c' as reply type byte\n", type);
+ printf("protocol error, got '%c' as reply type byte", type);
return 1;
}
}
return 0;
}
+static void showInteractiveHelp(void) {
+ printf(
+ "\n"
+ "Welcome to redis-cli " REDIS_VERSION "!\n"
+ "Just type any valid Redis command to see a pretty printed output.\n"
+ "\n"
+ "It is possible to quote strings, like in:\n"
+ " set \"my key\" \"some string \\xff\\n\"\n"
+ "\n"
+ "You can find a list of valid Redis commands at\n"
+ " http://code.google.com/p/redis/wiki/CommandReference\n"
+ "\n"
+ "Note: redis-cli supports line editing, use up/down arrows for history."
+ "\n\n");
+}
+
static int cliSendCommand(int argc, char **argv, int repeat) {
char *command = argv[0];
int fd, j, retval = 0;
sds cmd;
config.raw_output = !strcasecmp(command,"info");
+ if (!strcasecmp(command,"help")) {
+ showInteractiveHelp();
+ return 0;
+ }
if (!strcasecmp(command,"shutdown")) config.shutdown = 1;
if (!strcasecmp(command,"monitor")) config.monitor_mode = 1;
if (!strcasecmp(command,"subscribe") ||
!strcasecmp(command,"psubscribe")) config.pubsub_mode = 1;
- if ((fd = cliConnect()) == -1) return 1;
+ if ((fd = cliConnect(0)) == -1) return 1;
/* Select db number */
retval = selectDb(fd);
while(repeat--) {
anetWrite(fd,cmd,sdslen(cmd));
while (config.monitor_mode) {
- cliReadSingleLineReply(fd,0);
+ if (cliReadSingleLineReply(fd,0)) exit(1);
+ printf("\n");
}
if (config.pubsub_mode) {
printf("Reading messages... (press Ctrl-c to quit)\n");
while (1) {
cliReadReply(fd);
- printf("\n");
+ printf("\n\n");
}
}
retval = cliReadReply(fd);
- if (retval) {
- return retval;
- }
+ if (!config.raw_output && config.tty) printf("\n");
+ if (retval) return retval;
}
return 0;
}
i++;
} else if (!strcmp(argv[i],"-h") && lastarg) {
usage();
+ } else if (!strcmp(argv[i],"-x")) {
+ config.stdinarg = 1;
} else if (!strcmp(argv[i],"-p") && !lastarg) {
config.hostport = atoi(argv[i+1]);
i++;
config.auth = argv[i+1];
i++;
} else if (!strcmp(argv[i],"-i")) {
- config.interactive = 1;
+ fprintf(stderr,
+"Starting interactive mode using -i is deprecated. Interactive mode is started\n"
+"by default when redis-cli is executed without a command to execute.\n"
+ );
} else if (!strcmp(argv[i],"-c")) {
- config.argn_from_stdin = 1;
+ fprintf(stderr,
+"Reading last argument from standard input using -c is deprecated.\n"
+"When standard input is connected to a pipe or regular file, it is\n"
+"automatically used as last argument.\n"
+ );
} else if (!strcmp(argv[i],"-v")) {
- printf("redis-cli shipped with Redis verison %s\n", REDIS_VERSION);
+ printf("redis-cli shipped with Redis version %s\n", REDIS_VERSION);
exit(0);
} else {
break;
static void usage() {
fprintf(stderr, "usage: redis-cli [-iv] [-h host] [-p port] [-a authpw] [-r repeat_times] [-n db_num] cmd arg1 arg2 arg3 ... argN\n");
- fprintf(stderr, "usage: echo \"argN\" | redis-cli -c [-h host] [-p port] [-a authpw] [-r repeat_times] [-n db_num] cmd arg1 arg2 ... arg(N-1)\n");
- fprintf(stderr, "\nIf a pipe from standard input is detected this data is used as last argument.\n\n");
- fprintf(stderr, "example: cat /etc/passwd | redis-cli set my_passwd\n");
+ fprintf(stderr, "usage: echo \"argN\" | redis-cli -x [options] cmd arg1 arg2 ... arg(N-1)\n\n");
+ fprintf(stderr, "example: cat /etc/passwd | redis-cli -x set my_passwd\n");
fprintf(stderr, "example: redis-cli get my_passwd\n");
fprintf(stderr, "example: redis-cli -r 100 lpush mylist x\n");
fprintf(stderr, "\nRun in interactive mode: redis-cli -i or just don't pass any command\n");
return sds;
}
-static char **splitArguments(char *line, int *argc) {
- char *p = line;
- char *current = NULL;
- char **vector = NULL;
-
- *argc = 0;
- while(1) {
- /* skip blanks */
- while(*p && isspace(*p)) p++;
- if (*p) {
- /* get a token */
- int inq=0; /* set to 1 if we are in "quotes" */
- int done = 0;
-
- if (current == NULL) current = sdsempty();
- while(!done) {
- if (inq) {
- if (*p == '\\' && *(p+1)) {
- char c;
-
- p++;
- switch(*p) {
- case 'n': c = '\n'; break;
- case 'r': c = '\r'; break;
- case 't': c = '\t'; break;
- case 'b': c = '\b'; break;
- case 'a': c = '\a'; break;
- default: c = *p; break;
- }
- current = sdscatlen(current,&c,1);
- } else if (*p == '"') {
- done = 1;
- } else {
- current = sdscatlen(current,p,1);
- }
- } else {
- switch(*p) {
- case ' ':
- case '\n':
- case '\r':
- case '\t':
- case '\0':
- done=1;
- break;
- case '"':
- inq=1;
- break;
- default:
- current = sdscatlen(current,p,1);
- break;
- }
- }
- if (*p) p++;
- }
- /* add the token to the vector */
- vector = zrealloc(vector,((*argc)+1)*sizeof(char*));
- vector[*argc] = current;
- (*argc)++;
- current = NULL;
- } else {
- return vector;
- }
- }
-}
-
#define LINE_BUFLEN 4096
static void repl() {
int argc, j;
- char *line, **argv;
+ char *line;
+ sds *argv;
+ config.interactive = 1;
while((line = linenoise("redis> ")) != NULL) {
if (line[0] != '\0') {
- argv = splitArguments(line,&argc);
+ argv = sdssplitargs(line,&argc);
linenoiseHistoryAdd(line);
if (config.historyfile) linenoiseHistorySave(config.historyfile);
- if (argc > 0) {
+ if (argv == NULL) {
+ printf("Invalid argument(s)\n");
+ continue;
+ } else if (argc > 0) {
if (strcasecmp(argv[0],"quit") == 0 ||
strcasecmp(argv[0],"exit") == 0)
- exit(0);
- else
- cliSendCommand(argc, argv, 1);
+ {
+ exit(0);
+ } else {
+ int err;
+
+ if ((err = cliSendCommand(argc, argv, 1)) != 0) {
+ if (err == ECONNRESET) {
+ printf("Reconnecting... ");
+ fflush(stdout);
+ if (cliConnect(1) == -1) exit(1);
+ printf("OK\n");
+ cliSendCommand(argc,argv,1);
+ }
+ }
+ }
}
/* Free the argument vector */
for (j = 0; j < argc; j++)
exit(0);
}
+static int noninteractive(int argc, char **argv) {
+ int retval = 0;
+ if (config.stdinarg) {
+ argv = zrealloc(argv, (argc+1)*sizeof(char*));
+ argv[argc] = readArgFromStdin();
+ retval = cliSendCommand(argc+1, argv, config.repeat);
+ } else {
+ /* stdin is probably a tty, can be tested with S_ISCHR(s.st_mode) */
+ retval = cliSendCommand(argc, argv, config.repeat);
+ }
+ return retval;
+}
+
int main(int argc, char **argv) {
int firstarg;
- char **argvcopy;
config.hostip = "127.0.0.1";
config.hostport = 6379;
config.repeat = 1;
config.dbnum = 0;
- config.argn_from_stdin = 0;
- config.shutdown = 0;
config.interactive = 0;
+ config.shutdown = 0;
config.monitor_mode = 0;
config.pubsub_mode = 0;
config.raw_output = 0;
+ config.stdinarg = 0;
config.auth = NULL;
config.historyfile = NULL;
+ config.tty = isatty(fileno(stdout)) || (getenv("FAKETTY") != NULL);
+ config.mb_sep = '\n';
if (getenv("HOME") != NULL) {
config.historyfile = malloc(256);
if (config.auth != NULL) {
char *authargv[2];
+ int dbnum = config.dbnum;
+ /* We need to save the real configured database number and set it to
+ * zero here, otherwise cliSendCommand() will try to perform the
+ * SELECT command before the authentication, and it will fail. */
+ config.dbnum = 0;
authargv[0] = "AUTH";
authargv[1] = config.auth;
cliSendCommand(2, convertToSds(2, authargv), 1);
+ config.dbnum = dbnum; /* restore the right DB number */
}
- if (argc == 0 || config.interactive == 1) repl();
-
- argvcopy = convertToSds(argc+1, argv);
- if (config.argn_from_stdin) {
- sds lastarg = readArgFromStdin();
- argvcopy[argc] = lastarg;
- argc++;
- }
- return cliSendCommand(argc, argvcopy, config.repeat);
+ /* Start interactive mode when no command is provided */
+ if (argc == 0) repl();
+ /* Otherwise, we have some arguments to execute */
+ return noninteractive(argc,convertToSds(argc,argv));
}
projects / redis.git / blobdiff