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<?php
/**
* GitHub Import Manager
*
* @package WordPress_GitHub_Sync
*/
/**
* Class WordPress_GitHub_Sync_Import
*/
class WordPress_GitHub_Sync_Import {
/**
* Application container.
*
* @var WordPress_GitHub_Sync
*/
protected $app;
/**
* Initializes a new import manager.
*
* @param WordPress_GitHub_Sync $app Application container.
*/
public function __construct( WordPress_GitHub_Sync $app ) {
$this->app = $app;
}
/**
* Imports a payload.
*
* @param WordPress_GitHub_Sync_Payload $payload GitHub payload object.
*
* @return string|WP_Error
*/
public function payload( WordPress_GitHub_Sync_Payload $payload ) {
/**
* Whether there's an error during import.
*
* @var false|WP_Error $error
*/
$error = false;
$commits = $payload->get_commits();
$result = $this->commit( $this->app->api()->fetch()->commit( $payload->get_commit_id() ), $commits );
if ( is_wp_error( $result ) ) {
$error = $result;
}
$removed = array();
foreach ( $payload->get_commits() as $commit ) {
$removed = array_merge( $removed, $commit->removed );
}
foreach ( array_unique( $removed ) as $path ) {
$result = $this->app->database()->delete_post_by_path( $path );
if ( is_wp_error( $result ) ) {
if ( $error ) {
$error->add( $result->get_error_code(), $result->get_error_message() );
} else {
$error = $result;
}
}
}
if ( $error ) {
return $error;
}
return __( 'Payload processed', 'wp-github-sync' );
}
/**
* Imports the latest commit on the master branch.
*
* @return string|WP_Error
*/
public function master() {
return $this->commit( $this->app->api()->fetch()->master(), null );
}
/**
* Imports a provided commit into the database.
*
* @param WordPress_GitHub_Sync_Commit|WP_Error $commit Commit to import.
*
* @return string|WP_Error
*/
protected function commit( $commit , $commits_array) {
$head_commit = array();
$mod_files = array();
$update_all = true;
foreach ( $commits_array as $commit_obj ) {
if ( $commit_obj != null ) {
$next_commit = json_decode(json_encode($commit_obj), true);
if ( array_key_exists( 'modified', $next_commit ) ) {
$mod_files = array_merge($mod_files, $next_commit['modified']);
$update_all = false;
}
}
}
if ( is_wp_error( $commit ) ) {
return $commit;
}
if ( $commit->already_synced() ) {
return new WP_Error( 'commit_synced', __( 'Already synced this commit.', 'wp-github-sync' ) );
}
$posts = array();
$new = array();
foreach ( $commit->tree()->blobs() as $blob ) {
if ( ! $this->importable_blob( $blob ) ) {
continue;
}
$post = $this->blob_to_post( $blob );
$found = $update_all;
foreach ( $mod_files as $modified_file ) {
if ($blob->path() == $modified_file) {
$found = true;
}
}
if ( $post->is_new() ) {
$posts[] = $post;
$new[] = $post;
} elseif ( $found ) {
$posts[] = $post;
}
}
$result = $this->app->database()->save_posts( $posts, $commit->author_email() );
if ( is_wp_error( $result ) ) {
return $result;
}
if ( $new ) {
$result = $this->app->export()->new_posts( $new );
if ( is_wp_error( $result ) ) {
return $result;
}
}
return $posts;
}
/**
* Checks whether the provided blob should be imported.
*
* @param WordPress_GitHub_Sync_Blob $blob Blob to validate.
*
* @return bool
*/
protected function importable_blob( WordPress_GitHub_Sync_Blob $blob ) {
global $wpdb;
// Skip the repo's readme.
if ( 'readme' === strtolower( substr( $blob->path(), 0, 6 ) ) ) {
return false;
}
// If the blob sha already matches a post, then move on.
if ( ! is_wp_error( $this->app->database()->fetch_by_sha( $blob->sha() ) ) ) {
return false;
}
if ( ! $blob->has_frontmatter() ) {
return false;
}
return true;
}
/**
* Imports a single blob content into matching post.
*
* @param WordPress_GitHub_Sync_Blob $blob Blob to transform into a Post.
*
* @return WordPress_GitHub_Sync_Post
*/
protected function blob_to_post( WordPress_GitHub_Sync_Blob $blob ) {
$args = array( 'post_content' => $blob->content_import() );
$meta = $blob->meta();
if ( $meta ) {
if ( array_key_exists( 'layout', $meta ) ) {
$args['post_type'] = $meta['layout'];
unset( $meta['layout'] );
}
if ( array_key_exists( 'published', $meta ) ) {
$args['post_status'] = true === $meta['published'] ? 'publish' : 'draft';
unset( $meta['published'] );
}
if ( array_key_exists( 'post_title', $meta ) ) {
$args['post_title'] = $meta['post_title'];
unset( $meta['post_title'] );
}
if ( array_key_exists( 'ID', $meta ) ) {
$args['ID'] = $meta['ID'];
unset( $meta['ID'] );
}
}
$meta['_sha'] = $blob->sha();
$post = new WordPress_GitHub_Sync_Post( $args, $this->app->api() );
$post->set_meta( $meta );
return $post;
}
}