SDL CLI 'remove' -command key search pattern

[ric-plt/sdlgo.git] / internal / cli / remove.go

diff --git a/internal/cli/remove.go b/internal/cli/remove.go
index 35fef03..4e69ff4 100644 (file)
--- a/internal/cli/remove.go
+++ b/internal/cli/remove.go
@@ -30,9 +30,29 @@ import (
        "os"
 )
 
-const removeLongHelp = "Remove key(s) under given namespace from SDL DB.\n" +
-       "Multiple keys to remove can be given in a single command,\n" +
-       "each key is separated from the one next to it by a space."
+const removeLongHelp = "Remove key(s) under given namespace from SDL DB. A key to remove\n" +
+       "can be an exact key name or a key search pattern. Multiple key names\n" +
+       "or search patterns can be given in a single command, each of which\n" +
+       "is separated from the one next to it by a space. If no key or\n" +
+       "search pattern is given, command removes all the keys under given\n" +
+       "namespace."
+
+const removeExample = "  # Remove all keys in the given namespace.\n" +
+       "  sdlcli remove sdlns\n" +
+       "  # Remove keys 'key1' and 'key2' in the given namespace.\n" +
+       "  sdlcli remove sdlns key1 key2\n" +
+       "  # Remove keys in the given namespace matching given key search pattern.\n" +
+       "  sdlcli remove sdlns 'he*'\n\n" +
+
+       "  Supported search glob-style patterns:\n" +
+       "    h?llo matches hello, hallo and hxllo\n" +
+       "    h*llo matches hllo and heeeello\n" +
+       "    h[ae]llo matches hello and hallo, but not hillo\n" +
+       "    h[^e]llo matches hallo, hbllo, ... but not hello\n" +
+       "    h[a-b]llo matches hallo and hbllo\n\n" +
+       "  The \\ escapes character in key search pattern and those will be\n" +
+       "  treated as a normal character:\n" +
+       "    h\\[?llo\\* matches h[ello* and h[allo"
 
 func init() {
        rootCmd.AddCommand(newRemoveCmd(func() ISyncStorage {
@@ -42,10 +62,11 @@ func init() {
 
 func newRemoveCmd(sdlCreateCb SyncStorageCreateCb) *cobra.Command {
        cmd := &cobra.Command{
-               Use:   "remove <namespace> <key> [<key2>... <keyN>]",
-               Short: "Remove key(s) under given namespace from SDL DB",
-               Long:  removeLongHelp,
-               Args:  cobra.MinimumNArgs(2),
+               Use:     "remove <namespace> [<key|pattern>... <keyN|patternN>]",
+               Short:   "Remove key(s) under given namespace from SDL DB",
+               Long:    removeLongHelp,
+               Example: removeExample,
+               Args:    cobra.MinimumNArgs(1),
                RunE: func(cmd *cobra.Command, args []string) error {
                        var buf bytes.Buffer
                        sdlgoredis.SetDbLogger(&buf)
@@ -62,8 +83,19 @@ func newRemoveCmd(sdlCreateCb SyncStorageCreateCb) *cobra.Command {
 
 func runRemove(sdlCreateCb SyncStorageCreateCb, args []string) error {
        sdl := sdlCreateCb()
-       if err := sdl.Remove(args[0], args[1:]); err != nil {
-               return err
+       ns := args[0]
+       keyPatterns := []string{"*"}
+       if len(args) > 1 {
+               keyPatterns = args[1:]
+       }
+       for _, keyPattern := range keyPatterns {
+               keys, err := sdl.ListKeys(ns, keyPattern)
+               if err != nil {
+                       return err
+               }
+               if err := sdl.Remove(ns, keys); err != nil {
+                       return err
+               }
        }
        return nil
 }