Apply parameters that user create and post update silently discard

features/post-create-duplicate.feature

@@ -79,3 +79,23 @@ Feature: Create Duplicate WordPress post from existing posts.
     Then STDOUT should be a table containing rows:
 	  | Field     | Value |
 	  | post_type | page  |
+
+  Scenario: Duplicating a post does not inherit its modification date
+    Given a WP install
+
+    When I run `wp post create --post_title='Source' --post_status=publish --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {SOURCE_ID}
+
+    When I run `wp post update {SOURCE_ID} --post_modified='2015-03-03 09:00:00'`
+    Then STDOUT should not be empty
+
+    When I run `wp post create --from-post={SOURCE_ID} --post_title='Duplicate' --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {DUPLICATE_ID}
+
+    When I run `wp post get {DUPLICATE_ID} --field=post_modified`
+    Then STDOUT should not contain:
+      """
+      2015-03-03
+      """

features/post.feature

@@ -688,3 +688,107 @@ Feature: Manage WordPress posts
       """
       {DOOMED_ID}
       """
+
+  Scenario: Set a post's modification date on update
+    Given a WP install
+
+    When I run `wp post create --post_title='A post' --post_status=publish --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {POST_ID}
+
+    When I run `wp post update {POST_ID} --post_modified='2020-01-01 12:00:00'`
+    Then STDOUT should be:
+      """
+      Success: Updated post {POST_ID}.
+      """
+
+    When I run `wp post get {POST_ID} --field=post_modified`
+    Then STDOUT should be:
+      """
+      2020-01-01 12:00:00
+      """
+
+  Scenario: Set a post's modification date on create
+    Given a WP install
+
+    When I run `wp post create --post_title='Another post' --post_date='2019-05-05 10:00:00' --post_modified='2020-01-01 12:00:00' --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {POST_ID}
+
+    When I run `wp post get {POST_ID} --field=post_modified`
+    Then STDOUT should be:
+      """
+      2020-01-01 12:00:00
+      """
+
+  Scenario: A post's modification date defaults to the current time
+    Given a WP install
+
+    # Given a known modification date, so that an update which failed to set one
+    # would leave this value behind and be caught.
+    When I run `wp post create --post_title='Undated post' --post_status=publish --post_modified='2019-02-03 04:05:06' --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {POST_ID}
+
+    When I run `wp post get {POST_ID} --field=post_modified`
+    Then STDOUT should be:
+      """
+      2019-02-03 04:05:06
+      """
+
+    When I run `wp post update {POST_ID} --post_title='Retitled'`
+    Then STDOUT should be:
+      """
+      Success: Updated post {POST_ID}.
+      """
+
+    When I run `wp post get {POST_ID} --field=post_modified`
+    Then STDOUT should not contain:
+      """
+      2019-02-03 04:05:06
+      """
+    And STDOUT should not be empty
+
+  Scenario: Setting only the GMT modification date derives the local one
+    Given a WP install
+
+    # A timezone with an offset, so the derived local value is distinguishable
+    # from the GMT one it was derived from. 1 January is outside DST in New York.
+    When I run `wp option update timezone_string 'America/New_York'`
+    Then STDOUT should not be empty
+
+    When I run `wp post create --post_title='GMT only' --post_status=publish --post_modified_gmt='2020-01-01 12:00:00' --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {POST_ID}
+
+    When I run `wp post get {POST_ID} --field=post_modified_gmt`
+    Then STDOUT should be:
+      """
+      2020-01-01 12:00:00
+      """
+
+    When I run `wp post get {POST_ID} --field=post_modified`
+    Then STDOUT should be:
+      """
+      2020-01-01 07:00:00
+      """
+
+    # And the same on update, which takes the other of the two code paths.
+    When I run `wp post update {POST_ID} --post_modified_gmt='2020-06-01 12:00:00'`
+    Then STDOUT should be:
+      """
+      Success: Updated post {POST_ID}.
+      """
+
+    When I run `wp post get {POST_ID} --field=post_modified_gmt`
+    Then STDOUT should be:
+      """
+      2020-06-01 12:00:00
+      """
+
+    # June is inside DST, so the offset is four hours rather than five.
+    When I run `wp post get {POST_ID} --field=post_modified`
+    Then STDOUT should be:
+      """
+      2020-06-01 08:00:00
+      """

features/user.feature

@@ -811,3 +811,86 @@ Feature: Manage WordPress users
       """
       newtestuser
       """
+
+  Scenario: Create a user with a nicename and rich editing preference
+    Given a WP install
+
+    When I run `wp user create bob bob@example.com --user_nicename=bobby --rich_editing=false --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {USER_ID}
+
+    When I run `wp user get {USER_ID} --field=user_nicename`
+    Then STDOUT should be:
+      """
+      bobby
+      """
+
+    When I run `wp user meta get {USER_ID} rich_editing`
+    Then STDOUT should be:
+      """
+      false
+      """
+
+  Scenario: Creating a user without a nicename falls back to the login
+    Given a WP install
+
+    When I run `wp user create carol carol@example.com --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {USER_ID}
+
+    When I run `wp user get {USER_ID} --field=user_nicename`
+    Then STDOUT should be:
+      """
+      carol
+      """
+
+    When I run `wp user meta get {USER_ID} rich_editing`
+    Then STDOUT should be:
+      """
+      true
+      """
+
+  # Multisite creates the user through wpmu_create_user(), which takes only a
+  # login, a password and an email, and then applies the rest with
+  # wp_update_user(). That is a different path to wp_insert_user(), so both
+  # fields are worth asserting again here.
+  Scenario: Create a user with a nicename and rich editing preference on multisite
+    Given a WP multisite install
+
+    # Multisite requires a login of at least four characters, and a login that
+    # differs from the nicename shows the nicename was applied rather than
+    # derived.
+    When I run `wp user create robert robert@example.com --user_nicename=bobby --rich_editing=false --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {USER_ID}
+
+    When I run `wp user get {USER_ID} --field=user_nicename`
+    Then STDOUT should be:
+      """
+      bobby
+      """
+
+    When I run `wp user meta get {USER_ID} rich_editing`
+    Then STDOUT should be:
+      """
+      false
+      """
+
+  Scenario: Creating a user without a nicename falls back to the login on multisite
+    Given a WP multisite install
+
+    When I run `wp user create carol carol@example.com --porcelain`
+    Then STDOUT should be a number
+    And save STDOUT as {USER_ID}
+
+    When I run `wp user get {USER_ID} --field=user_nicename`
+    Then STDOUT should be:
+      """
+      carol
+      """
+
+    When I run `wp user meta get {USER_ID} rich_editing`
+    Then STDOUT should be:
+      """
+      true
+      """

src/Post_Command.php

@@ -201,6 +201,8 @@ public function create( $args, $assoc_args ) {
 			$post_id  = $post_arr['ID'];
 			unset( $post_arr['post_date'] );
 			unset( $post_arr['post_date_gmt'] );
+			unset( $post_arr['post_modified'] );
+			unset( $post_arr['post_modified_gmt'] );
 			unset( $post_arr['guid'] );
 			unset( $post_arr['ID'] );
 
@@ -249,8 +251,14 @@ function ( $params ) {
 					}
 				}
 
+				$modified_callback = self::add_post_modified_filter( $params );
+
 				$result = wp_insert_post( $params, true );
 
+				if ( $modified_callback ) {
+					remove_filter( 'wp_insert_post_data', $modified_callback );
+				}
+
 				if ( $filter_callback ) {
 					remove_filter( 'user_has_cap', $filter_callback );
 				}
@@ -260,6 +268,51 @@ function ( $params ) {
 		);
 	}
 
+	/**
+	 * Applies an explicitly requested modification date.
+	 *
+	 * wp_insert_post() derives post_modified and post_modified_gmt itself and
+	 * never reads them back from $postarr — on update they are unconditionally
+	 * the current time — so the documented parameters have to be applied to the
+	 * post data on its way to the database.
+	 *
+	 * @param array<string, mixed> $params Parameters passed to wp_insert_post() or wp_update_post().
+	 * @return callable|null The registered callback, for the caller to remove, or null when
+	 *                       no modification date was requested.
+	 */
+	private static function add_post_modified_filter( $params ) {
+		$local = ! empty( $params['post_modified'] ) && is_scalar( $params['post_modified'] )
+			? (string) $params['post_modified']
+			: null;
+		$gmt   = ! empty( $params['post_modified_gmt'] ) && is_scalar( $params['post_modified_gmt'] )
+			? (string) $params['post_modified_gmt']
+			: null;
+
+		if ( null === $local && null === $gmt ) {
+			return null;
+		}
+
+		// Keep the pair consistent when only one of the two was given.
+		if ( null === $gmt ) {
+			$gmt = get_gmt_from_date( $local );
+		} elseif ( null === $local ) {
+			$local = get_date_from_gmt( $gmt );
+		}
+
+		$modified = [
+			'post_modified'     => $local,
+			'post_modified_gmt' => $gmt,
+		];
+
+		$callback = static function ( $data ) use ( $modified ) {
+			return array_merge( $data, $modified );
+		};
+
+		add_filter( 'wp_insert_post_data', $callback );
+
+		return $callback;
+	}
+
 	/**
 	 * Updates one or more existing posts.
 	 *
@@ -432,8 +485,14 @@ function ( $params ) {
 					}
 				}
 
+				$modified_callback = self::add_post_modified_filter( $params );
+
 				$result = wp_update_post( $params, true );
 
+				if ( $modified_callback ) {
+					remove_filter( 'wp_insert_post_data', $modified_callback );
+				}
+
 				if ( $filter_callback ) {
 					remove_filter( 'user_has_cap', $filter_callback );
 				}

src/User_Command.php

@@ -437,6 +437,10 @@ public function create( $args, $assoc_args ) {
 
 		$user->user_url = Utils\get_flag_value( $assoc_args, 'user_url', false );
 
+		$user->user_nicename = Utils\get_flag_value( $assoc_args, 'user_nicename', false );
+
+		$user->rich_editing = Utils\get_flag_value( $assoc_args, 'rich_editing', false );
+
 		if ( isset( $assoc_args['user_pass'] ) ) {
 			$user->user_pass = $assoc_args['user_pass'];
 		} else {