archive.js

const fs = require( 'fs' );
const pixel = `/srv/pixel`;
const outputDir = `/var/www/html`;

const ctx = () => {
    try {
        return JSON.parse( fs.readFileSync( `${pixel}/context.json` ) );
    } catch ( e ) {
        return {};
    }
};

const json = ctx();
if ( Object.keys(json).length === 0 ) {
    console.warn( `Could not read Pixel directory: ${pixel}` );
}
const ref = Object.keys(json).map( ( build ) => {
   let ref = json[build].reference;
   if ( !ref ) {
        return;
   }
   ref = ref.replace( /\/g/, '_' );

   const archivePath = `${outputDir}/archive/${ref}`;
   const masterPath = `${outputDir}/reports`;

    // If the archive folder hasn't been created make it from the current copy.
    if ( !fs.existsSync( archivePath ) ) {
        console.log( `Creating ${archivePath}` );
        fs.mkdirSync( archivePath, { recursive: true } );
        fs.cpSync( masterPath, archivePath, { recursive: true } );
    }

    // Once that's done, check the individual build
    // and create new copy
    [
        `${build}`,
        `reference-screenshots-${build}`,
        `test-screenshots-${build}`
    ].forEach( ( subfolder ) => {
        const archiveSubFolder = `${archivePath}/${subfolder}`;
        const currentSubFolder = `${masterPath}/${subfolder}`;
        if ( !fs.existsSync( currentSubFolder ) ) {
            console.warn( `Skipping as directory ${currentSubFolder} does not exist.` );
            return;
        }
        // If an existing version exists delete it.
        if ( fs.existsSync( archiveSubFolder ) ) {
            console.log(`Replacing archive ${archiveSubFolder}`)
            fs.rmSync( archiveSubFolder, { recursive: true } );
        } else {
            console.log(`Creating archive ${archiveSubFolder}`)
        }
        fs.cpSync( currentSubFolder, archiveSubFolder, { recursive: true } );
    } );
} );