#include <errno.h>
#include <sys/stat.h>
#include <sys/time.h>
+#include <assert.h>
#include "hiredis.h"
#include "sds.h"
#include "zmalloc.h"
#include "linenoise.h"
+#include "help.h"
#define REDIS_NOTUSED(V) ((void) V)
return mst;
}
+/*------------------------------------------------------------------------------
+ * Help functions
+ *--------------------------------------------------------------------------- */
+
+#define CLI_HELP_COMMAND 1
+#define CLI_HELP_GROUP 2
+
+typedef struct {
+ int type;
+ int argc;
+ sds *argv;
+ sds full;
+
+ /* Only used for help on commands */
+ struct commandHelp *org;
+} helpEntry;
+
+static helpEntry *helpEntries;
+static int helpEntriesLen;
+
+static void cliInitHelp() {
+ int commandslen = sizeof(commandHelp)/sizeof(struct commandHelp);
+ int groupslen = sizeof(commandGroups)/sizeof(char*);
+ int i, len, pos = 0;
+ helpEntry tmp;
+
+ helpEntriesLen = len = commandslen+groupslen;
+ helpEntries = malloc(sizeof(helpEntry)*len);
+
+ for (i = 0; i < groupslen; i++) {
+ tmp.argc = 1;
+ tmp.argv = malloc(sizeof(sds));
+ tmp.argv[0] = sdscatprintf(sdsempty(),"@%s",commandGroups[i]);
+ tmp.full = tmp.argv[0];
+ tmp.type = CLI_HELP_GROUP;
+ tmp.org = NULL;
+ helpEntries[pos++] = tmp;
+ }
+
+ for (i = 0; i < commandslen; i++) {
+ tmp.argv = sdssplitargs(commandHelp[i].name,&tmp.argc);
+ tmp.full = sdsnew(commandHelp[i].name);
+ tmp.type = CLI_HELP_COMMAND;
+ tmp.org = &commandHelp[i];
+ helpEntries[pos++] = tmp;
+ }
+}
+
+/* Output command help to stdout. */
+static void cliOutputCommandHelp(struct commandHelp *help, int group) {
+ printf("\r\n \x1b[1m%s\x1b[0m \x1b[90m%s\x1b[0m\r\n", help->name, help->params);
+ printf(" \x1b[33msummary:\x1b[0m %s\r\n", help->summary);
+ printf(" \x1b[33msince:\x1b[0m %s\r\n", help->since);
+ if (group) {
+ printf(" \x1b[33mgroup:\x1b[0m %s\r\n", commandGroups[help->group]);
+ }
+}
+
+/* Print generic help. */
+static void cliOutputGenericHelp() {
+ printf(
+ "redis-cli %s\r\n"
+ "Type: \"help @<group>\" to get a list of commands in <group>\r\n"
+ " \"help <command>\" for help on <command>\r\n"
+ " \"help <tab>\" to get a list of possible help topics\r\n"
+ " \"quit\" to exit\r\n",
+ REDIS_VERSION
+ );
+}
+
+/* Output all command help, filtering by group or command name. */
+static void cliOutputHelp(int argc, char **argv) {
+ int i, j, len;
+ int group = -1;
+ helpEntry *entry;
+ struct commandHelp *help;
+
+ if (argc == 0) {
+ cliOutputGenericHelp();
+ return;
+ } else if (argc > 0 && argv[0][0] == '@') {
+ len = sizeof(commandGroups)/sizeof(char*);
+ for (i = 0; i < len; i++) {
+ if (strcasecmp(argv[0]+1,commandGroups[i]) == 0) {
+ group = i;
+ break;
+ }
+ }
+ }
+
+ assert(argc > 0);
+ for (i = 0; i < helpEntriesLen; i++) {
+ entry = &helpEntries[i];
+ if (entry->type != CLI_HELP_COMMAND) continue;
+
+ help = entry->org;
+ if (group == -1) {
+ /* Compare all arguments */
+ if (argc == entry->argc) {
+ for (j = 0; j < argc; j++) {
+ if (strcasecmp(argv[j],entry->argv[j]) != 0) break;
+ }
+ if (j == argc) {
+ cliOutputCommandHelp(help,1);
+ }
+ }
+ } else {
+ if (group == help->group) {
+ cliOutputCommandHelp(help,0);
+ }
+ }
+ }
+ printf("\r\n");
+}
+
+static void completionCallback(const char *buf, linenoiseCompletions *lc) {
+ size_t startpos = 0;
+ int mask;
+ int i;
+ size_t matchlen;
+ sds tmp;
+
+ if (strncasecmp(buf,"help ",5) == 0) {
+ startpos = 5;
+ while (isspace(buf[startpos])) startpos++;
+ mask = CLI_HELP_COMMAND | CLI_HELP_GROUP;
+ } else {
+ mask = CLI_HELP_COMMAND;
+ }
+
+ for (i = 0; i < helpEntriesLen; i++) {
+ if (!(helpEntries[i].type & mask)) continue;
+
+ matchlen = strlen(buf+startpos);
+ if (strncasecmp(buf+startpos,helpEntries[i].full,matchlen) == 0) {
+ tmp = sdsnewlen(buf,startpos);
+ tmp = sdscat(tmp,helpEntries[i].full);
+ linenoiseAddCompletion(lc,tmp);
+ sdsfree(tmp);
+ }
+ }
+}
+
/*------------------------------------------------------------------------------
* Networking / parsing
*--------------------------------------------------------------------------- */
return REDIS_OK;
}
-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];
size_t *argvlen;
int j;
config.raw_output = !strcasecmp(command,"info");
- if (!strcasecmp(command,"help")) {
- showInteractiveHelp();
+ if (!strcasecmp(command,"help") || !strcasecmp(command,"?")) {
+ cliOutputHelp(--argc, ++argv);
return REDIS_OK;
}
if (!strcasecmp(command,"shutdown")) config.shutdown = 1;
sds *argv;
config.interactive = 1;
+ linenoiseSetCompletionCallback(completionCallback);
while((line = linenoise("redis> ")) != NULL) {
if (line[0] != '\0') {
argv = sdssplitargs(line,&argc);
config.historyfile = NULL;
config.tty = isatty(fileno(stdout)) || (getenv("FAKETTY") != NULL);
config.mb_sep = '\n';
+ cliInitHelp();
if (getenv("HOME") != NULL) {
config.historyfile = malloc(256);
projects / redis.git / blobdiff