Code fixes

Author: rhoerr

src/determine-dependencies.js

@@ -79,6 +79,11 @@ module.exports = {
 
         await new Promise(resolve => {
           const classesInPhp = childProcess.spawn('php-classes.phar', [], options);
+          classesInPhp.on('error', error => {
+            if (error.code === 'ENOENT') {
+              console.log('Error: Missing `php-classes.phar`. Please see the README for install directions.');
+            }
+          });
           classesInPhp.on('close', status => resolve());
 
           // Pipe file contents to php-classes.phar separated by a zero byte

src/make/mageos-release.js

@@ -37,6 +37,7 @@ Options:
   --mageosRelease=   Target Mage-OS release version
   --releaseRefsFile= JS file exporting a map with the git repo refs to use for the release
   --upstreamRelease= Upstream Magento Open Source release to use for package compatibility
+  --skipHistory      Skip rebuilding of historic releases
 `);
   process.exit(1);
 }

src/release-build-tools.js

@@ -211,7 +211,7 @@ async function buildMageOsProductCommunityEditionMetapackage(releaseVersion, ins
 
           // Add upstreamRelease to composer extra data for reference
           composerConfig.extra = composerConfig.extra || {};
-          composerConfig.extra.magento_version = replaceVersionMap[`${vendor}/product-community-edition`];
+          composerConfig.extra.magento_version = replaceVersionMap['replaceVersionMap']['magento/product-community-edition'];
 
           return composerConfig
         }