woocommerce/plugins/woocommerce-admin/bin/generate-docs/lib/file-system.js

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/** @format */
/**
* External dependencies
*/
const { isArray, uniq } = require( 'lodash' );
const fs = require( 'fs' );
const path = require( 'path' );
const recast = require( 'recast' );
const types = require( 'ast-types' );
const { namedTypes } = types;
/**
* Internal dependencies
*/
const { camelCaseDash } = require( './formatting' );
const COMPONENTS_FOLDER = path.resolve( __dirname, '../../../client/components/' );
const DOCS_FOLDER = path.resolve( __dirname, '../../../docs/components/' );
/**
* Remove all files in existing docs folder.
*/
function deleteExistingDocs() {
if ( ! isDirectory( DOCS_FOLDER ) ) {
fs.mkdirSync( DOCS_FOLDER );
return;
}
const files = fs.readdirSync( DOCS_FOLDER );
files.map( file => {
if ( 'README.md' === file ) {
return;
}
fs.unlinkSync( path.resolve( DOCS_FOLDER, file ) );
} );
}
/**
* Get an array of files exported from in the given file
*
* @param { string } filePath The file to parse for exports.
* @return { string } Formatted string.
*/
function getExportedFileList( filePath ) {
const content = fs.readFileSync( filePath );
const ast = recast.parse( content );
const files = [];
types.visit( ast, {
// This method will be called for any node with .type "ExportNamedDeclaration":
visitExportNamedDeclaration: function( nodePath ) {
const { node } = nodePath;
if (
namedTypes.Literal.check( node.source ) &&
isArray( node.specifiers ) &&
namedTypes.ExportSpecifier.check( node.specifiers[ 0 ] )
) {
if ( -1 === node.source.value.indexOf( 'use-filters' ) ) {
files.push( node.source.value );
}
}
// Keep traversing this path…
this.traverse( nodePath );
},
} );
return files;
}
/**
* Return the markdown file name for a given component file.
*
* @param { string } filepath File path for this component.
* @param { boolean } absolute Whether to return full path (true) or just filename (false).
* @return { string } Markdown file name.
*/
function getMdFileName( filepath, absolute = true ) {
const fileParts = filepath.split( '/components/' );
if ( ! fileParts || ! fileParts[ 1 ] ) {
return;
}
const name = fileParts[ 1 ].split( '/' )[ 0 ];
if ( ! absolute ) {
return name + '.md';
}
return path.resolve( DOCS_FOLDER, name + '.md' );
}
/**
* Get an array of files exported from in the given file
*
* @param { array } files A list of files, presumably in the components directory.
* @param { string } basePath The absolute path to the components directory.
* @return { array } Updated array with absolute paths to all files.
*/
function getRealFilePaths( files, basePath = COMPONENTS_FOLDER ) {
files.sort();
return files.map( file => {
const fullPath = path.resolve( basePath, file );
if ( isFile( fullPath ) ) {
return fullPath;
}
if ( isFile( `${ fullPath }.js` ) ) {
return `${ fullPath }.js`;
}
if ( isFile( `${ fullPath }/index.js` ) ) {
return `${ fullPath }/index.js`;
}
const folderName = path.basename( fullPath );
if ( isFile( `${ fullPath }/${ folderName }.js` ) ) {
return `${ fullPath }/${ folderName }.js`;
}
return fullPath;
} );
}
/**
* Check if a directory exists and is not a file.
*
* @param { string } dir A directory path to test.
* @return { boolean } True if this path exists and is a directory.
*/
function isDirectory( dir ) {
if ( ! fs.existsSync( dir ) ) {
return false;
}
const stats = fs.statSync( dir );
return stats && stats.isDirectory();
}
/**
* Check if a file exists and is not a directory.
*
* @param { string } file A file path to test.
* @return { boolean } True if this path exists and is a file.
*/
function isFile( file ) {
if ( ! fs.existsSync( file ) ) {
return false;
}
const stats = fs.statSync( file );
return stats && stats.isFile();
}
/**
* Create a table of contents given a list of markdown files.
*
* @param { array } files A list of readme files.
*/
function writeTableOfContents( files ) {
const mdFiles = files.map( f => getMdFileName( f, false ) );
const TOC = uniq( mdFiles ).map( doc => {
const name = camelCaseDash( doc.replace( '.md', '' ) );
return ` * [${ name }](components/${ doc })`;
} ).join( '\n' );
const TocFile = path.resolve( DOCS_FOLDER, '_sidebar.md' );
fs.writeFileSync( TocFile, '* [Home](/)\n\n* [Components](components/)\n\n' + TOC + '\n' );
}
module.exports = {
COMPONENTS_FOLDER,
DOCS_FOLDER,
deleteExistingDocs,
getExportedFileList,
getMdFileName,
getRealFilePaths,
writeTableOfContents,
};