Use Cobra to provide all shell completions

.goreleaser.yml

@@ -17,7 +17,7 @@ archives:
       - README.md
       - LICENSE
       - plugin.yaml
-      - completion.yaml
+      - plugin.complete
       - scripts/install_plugin.sh
 checksum:
   name_template: 'checksums.txt'

cmd/move_config.go

@@ -36,7 +36,8 @@ func newMoveConfigCmd(out io.Writer) *cobra.Command {
 			}
 			return nil
 		},
-		RunE: runMove,
+		ValidArgs: []string{"config"},
+		RunE:      runMove,
 	}
 
 	flags := cmd.Flags()

plugin.complete

@@ -0,0 +1,9 @@
+#!/usr/bin/env sh
+
+# It is important to quote the $@ variable since the last parameter
+# could be empty, which indicates that the prefix to complete is empty.
+# For example:
+#   helm 2to3 convert <TAB>
+# compared to
+#   helm 2to3 convert ngi<TAB>
+$HELM_PLUGIN_DIR/bin/2to3 __complete "$@"

plugin.yaml

@@ -1,5 +1,5 @@
 name: "2to3"
-version: "0.9.0"
+version: "0.9.1"
 usage: "migrate and cleanup Helm v2 configuration and releases in-place to Helm v3"
 description: "migrate and cleanup Helm v2 configuration and releases in-place to Helm v3"
 command: "$HELM_PLUGIN_DIR/bin/2to3"

scripts/install_plugin.sh

@@ -41,7 +41,7 @@ fi
 tar xzf "releases/v${version}.tar.gz" -C "releases/v${version}"
 mv "releases/v${version}/2to3" "bin/2to3" || \
     mv "releases/v${version}/2to3.exe" "bin/2to3"
-mv "releases/v${version}/completion.yaml" .
+mv "releases/v${version}/plugin.complete" .
 mv "releases/v${version}/plugin.yaml" .
 mv "releases/v${version}/README.md" .
 mv "releases/v${version}/LICENSE" .