Twenty Seventeen: Force content excerpts on archives.

content.php

<?php
/**
 * Template part for displaying a post, forcing the excerpt template part to be used on archives.
 *
 * Instructions: Place this file in your twentyseventeen child theme at template-parts/post/content.php
 *
 * @package Twenty_Seventeen
 */

if ( is_archive() ) {
	get_template_part( 'template-parts/post/content', 'excerpt' );
} else {
	include get_template_directory() . 'template-parts/post/content.php';
}

This no longer works, as of April 2019 (probably earlier).

My solution is to modify /template-parts/post/content.php as follows (from line 53):
<?php if ( is_single() ) { ?> <div class="entry-content"> <?php /* translators: %s: Name of current post */ the_content( sprintf( __( 'Continue reading<span class="screen-reader-text"> "%s"</span>', 'twentyseventeen' ), get_the_title() ) ); } else { ?> <div class="entry-excerpt"> <?php the_excerpt(); }
The above snippet comes directly above wp_link_pages( and replaces the existing content beginning <div class="entry-content">.