Add command to get the post ID by URL

README.md

@@ -3111,6 +3111,27 @@ wp post update <id>... [--post_author=<post_author>] [--post_date=<post_date>] [
 
 
 
+### wp post url-to-id
+
+Gets the post ID for a given URL.
+
+~~~
+wp post url-to-id <url>
+~~~
+
+**OPTIONS**
+
+	<url>
+		The URL of the post to get.
+
+**EXAMPLES**
+
+    # Get post ID by URL
+    $ wp post url-to-id https://example.com/?p=1
+    1
+
+
+
 ### wp post-type
 
 Retrieves details on the site's registered post types.

composer.json

@@ -115,6 +115,7 @@
             "post term remove",
             "post term set",
             "post update",
+            "post url-to-id",
             "post-type",
             "post-type get",
             "post-type list",

features/post-url-to-id.feature

@@ -0,0 +1,24 @@
+Feature: Get the post ID for a given URL
+
+  Background:
+    Given a WP install
+
+  Scenario: Get the post ID for a given URL
+    When I run `wp post get 1 --field=url`
+    Then STDOUT should be:
+      """
+      https://example.com/?p=1
+      """
+    And save STDOUT as {POST_URL}
+
+    When I run `wp post url-to-id {POST_URL}`
+    Then STDOUT should contain:
+      """
+      1
+      """
+
+    When I try `wp post url-to-id 'https://example.com/?p=404'`
+    Then STDERR should contain:
+      """
+      Could not get post with url https://example.com/?p=404.
+      """

src/Post_Command.php

@@ -878,6 +878,34 @@ public function generate( $args, $assoc_args ) {
 		}
 	}
 
+	/**
+	 * Gets the post ID for a given URL.
+	 *
+	 * ## OPTIONS
+	 *
+	 * <url>
+	 * : The URL of the post to get.
+	 *
+	 * ## EXAMPLES
+	 *
+	 *     # Get post ID by URL
+	 *     $ wp post url-to-id https://example.com/?p=1
+	 *     1
+	 *
+	 * @subcommand url-to-id
+	 */
+	public function url_to_id( $args, $assoc_args ) {
+		$post_id = url_to_postid( $args[0] );
+
+		$post = get_post( $post_id );
+
+		if ( null === $post ) {
+			WP_CLI::error( "Could not get post with url $args[0]." );
+		}
+
+		WP_CLI::print_value( $post_id, $assoc_args );
+	}
+
 	private function maybe_make_child() {
 		// 50% chance of making child post.
 		return ( wp_rand( 1, 2 ) === 1 );