From a9319784050b56c1123e8762904e65e06ea2cbba Mon Sep 17 00:00:00 2001
From: Sven Kaptein <sven.kaptein@marsmedia.nl>
Date: Fri, 15 Jun 2018 00:08:10 +0200
Subject: [PATCH 1/2] Add --all flag to plugin delete

---
 features/plugin-delete.feature | 16 ++++++++++++++++
 src/Plugin_Command.php         | 18 +++++++++++++++++-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/features/plugin-delete.feature b/features/plugin-delete.feature
index 3501ebf98..274d35941 100644
--- a/features/plugin-delete.feature
+++ b/features/plugin-delete.feature
@@ -12,6 +12,22 @@ Feature: Delete WordPress plugins
       """
     And the return code should be 0
 
+  Scenario: Delete all installed plugins
+    When I run `wp plugin delete --all`
+    Then STDOUT should be:
+      """
+      Deleted 'akismet' plugin.
+      Deleted 'hello' plugin.
+      Success: Deleted 2 of 2 plugins.
+      """
+    And the return code should be 0
+
+    When I run the previous command again
+    Then STDOUT should be:
+      """
+      Success: No plugins deleted.
+      """
+
   Scenario: Attempting to delete a plugin that doesn't exist
     When I try `wp plugin delete edit-flow`
     Then STDOUT should be:
diff --git a/src/Plugin_Command.php b/src/Plugin_Command.php
index 5ca1988e3..1922180f0 100644
--- a/src/Plugin_Command.php
+++ b/src/Plugin_Command.php
@@ -904,8 +904,11 @@ public function is_installed( $args, $assoc_args = array() ) {
 	 *
 	 * ## OPTIONS
 	 *
-	 * <plugin>...
+	 * [<plugin>...]
 	 * : One or more plugins to delete.
+     *
+     * [--all]
+     * : If set, all plugins will be deleted.
 	 *
 	 * ## EXAMPLES
 	 *
@@ -920,7 +923,20 @@ public function is_installed( $args, $assoc_args = array() ) {
 	 *     Success: Deleted 1 of 1 plugins.
 	 */
 	public function delete( $args, $assoc_args = array() ) {
+        $all = Utils\get_flag_value( $assoc_args, 'all', false );
+
+        // Check if plugin names of --all is passed.
+        if ( ! ( $args = $this->check_optional_args_and_all( $args, $all, 'delete' ) ) ) {
+            return;
+        }
+
 		$successes = $errors = 0;
+
+        $plugins = $this->fetcher->get_many( $args );
+        if ( count( $plugins ) < count( $args ) ) {
+            $errors = count( $args ) - count( $plugins );
+        }
+        
 		foreach ( $this->fetcher->get_many( $args ) as $plugin ) {
 			if ( $this->_delete( $plugin ) ) {
 				WP_CLI::log( "Deleted '{$plugin->name}' plugin." );

From 1bcaadc46060cf60692a31a4ee9ddae8a38f5d39 Mon Sep 17 00:00:00 2001
From: Alain Schlesser <alain.schlesser@gmail.com>
Date: Tue, 31 Jul 2018 18:31:05 +0200
Subject: [PATCH 2/2] Remove superfluous plugin iteration

---
 src/Plugin_Command.php | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/Plugin_Command.php b/src/Plugin_Command.php
index e938bbdc6..c61d7d0f3 100644
--- a/src/Plugin_Command.php
+++ b/src/Plugin_Command.php
@@ -964,11 +964,6 @@ public function delete( $args, $assoc_args = array() ) {
 
 		$successes = $errors = 0;
 
-        $plugins = $this->fetcher->get_many( $args );
-        if ( count( $plugins ) < count( $args ) ) {
-            $errors = count( $args ) - count( $plugins );
-        }
-        
 		foreach ( $this->fetcher->get_many( $args ) as $plugin ) {
 			if ( $this->_delete( $plugin ) ) {
 				WP_CLI::log( "Deleted '{$plugin->name}' plugin." );
@@ -1092,15 +1087,15 @@ protected function get_status( $file ) {
 
 	/**
 	 * Gets the template path based on installation type.
-	 */	 
+	 */
 	private static function get_template_path( $template ) {
 		$command_root = Utils\phar_safe_path( dirname( __DIR__ ) );
 		$template_path = "{$command_root}/templates/{$template}";
-		
+
 		if ( ! file_exists( $template_path ) ) {
 			WP_CLI::error( "Couldn't find {$template}" );
 		}
-		
+
 		return $template_path;
 	}