init

platform/app/.webpack/writePluginImportsFile.js

@@ -0,0 +1,218 @@
+const pluginConfig = require('../pluginConfig.json');
+const fs = require('fs');
+const os = require('os');
+const glob = require('glob');
+
+const autogenerationDisclaimer = `
+// THIS FILE IS AUTOGENERATED AS PART OF THE EXTENSION AND MODE PLUGIN PROCESS.
+// IT SHOULD NOT BE MODIFIED MANUALLY \n`;
+
+const extractName = val => (typeof val === 'string' ? val : val.packageName);
+
+function constructLines(input, categoryName) {
+  let pluginCount = 0;
+
+  const lines = {
+    importLines: [],
+    addToWindowLines: [],
+  };
+
+  if (!input) return lines;
+
+  input.forEach(entry => {
+    if (entry.default === false) return;
+
+    const packageName = extractName(entry);
+
+    lines.addToWindowLines.push(`${categoryName}.push("${packageName}");\n`);
+
+    pluginCount++;
+  });
+
+  return lines;
+}
+
+function getFormattedImportBlock(importLines) {
+  let content = '';
+  // Imports
+  importLines.forEach(importLine => {
+    content += importLine;
+  });
+
+  return content;
+}
+
+function getFormattedWindowBlock(addToWindowLines) {
+  let content =
+    'const extensions = [];\n' +
+    'const modes = [];\n' +
+    '\n// Not required any longer\n' +
+    'window.extensions = extensions;\n' +
+    'window.modes = modes;\n\n';
+
+  addToWindowLines.forEach(addToWindowLine => {
+    content += addToWindowLine;
+  });
+
+  return content;
+}
+
+function getRuntimeLoadModesExtensions(modules) {
+  const dynamicLoad = [];
+  dynamicLoad.push(
+    '\n\n// Add a dynamic runtime loader',
+    'async function loadModule(module) {',
+    "  if (typeof module !== 'string') return module;"
+  );
+  modules.forEach(module => {
+    const packageName = extractName(module);
+    if (!packageName) {
+      return;
+    }
+    if (module.importPath) {
+      dynamicLoad.push(
+        `  if( module==="${packageName}") {`,
+        `    const imported = await window.browserImportFunction('${module.importPath}');`,
+        '    return ' + (module.globalName ? `window["${module.globalName}"];` : `imported["${module.importName || 'default'}"];`),
+        '  }'
+      );
+      return;
+    }
+    dynamicLoad.push(
+      `  if( module==="${packageName}") {`,
+      `    const imported = await import("${packageName}");`,
+      '    return imported.default;',
+      '  }'
+    );
+  });
+  // TODO - handle more cases for import than just default
+  dynamicLoad.push(
+    '  return (await window.browserImportFunction(module)).default;',
+    '}\n',
+    '// Import a list of items (modules or string names)',
+    '// @return a Promise evaluating to a list of modules',
+    'export default function importItems(modules) {',
+    '  return Promise.all(modules.map(loadModule));',
+    '}\n',
+    'export { loadModule, modes, extensions, importItems };\n\n'
+  );
+  return dynamicLoad.join('\n');
+}
+
+const fromDirectory = (srcDir, path) => {
+  if (!path) return;
+  if (path[0] === '.') return srcDir + '/../../..' + path.substring(1);
+  if (path[0] === '~') return os.homedir() + path.substring(1);
+  return path;
+};
+
+const createCopyPluginToDistForLink = (srcDir, distDir, plugins, folderName) => {
+  return plugins
+    .map(plugin => {
+      const fromDir = fromDirectory(srcDir, plugin.directory);
+      const from = fromDir || `${srcDir}/../node_modules/${plugin.packageName}/${folderName}/`;
+      const exists = fs.existsSync(from);
+      return exists
+        ? {
+            from,
+            to: distDir,
+            toType: 'dir',
+          }
+        : undefined;
+    })
+    .filter(x => !!x);
+};
+
+const createCopyPluginToDistForBuild = (SRC_DIR, DIST_DIR, plugins, folderName) => {
+  return plugins
+    .map(plugin => {
+      const from = `${SRC_DIR}/../../../node_modules/${plugin.packageName}/${folderName}/`;
+      const exists = fs.existsSync(from);
+      return exists
+        ? {
+            from,
+            to: DIST_DIR,
+            toType: 'dir',
+          }
+        : undefined;
+    })
+    .filter(x => !!x);
+};
+
+function writePluginImportsFile(SRC_DIR, DIST_DIR) {
+  let pluginImportsJsContent = autogenerationDisclaimer;
+
+  const extensionLines = constructLines(pluginConfig.extensions, 'extensions');
+  const modeLines = constructLines(pluginConfig.modes, 'modes');
+
+  pluginImportsJsContent += getFormattedImportBlock([
+    ...extensionLines.importLines,
+    ...modeLines.importLines,
+  ]);
+  pluginImportsJsContent += getFormattedWindowBlock([
+    ...extensionLines.addToWindowLines,
+    ...modeLines.addToWindowLines,
+  ]);
+
+  pluginImportsJsContent += getRuntimeLoadModesExtensions([
+    ...pluginConfig.extensions,
+    ...pluginConfig.modes,
+    ...pluginConfig.public,
+  ]);
+
+  fs.writeFileSync(`${SRC_DIR}/pluginImports.js`, pluginImportsJsContent, { flag: 'w+' }, err => {
+    if (err) {
+      console.error(err);
+      return;
+    }
+  });
+
+  // Build packages using cli add-mode and add-extension
+  // will get added to the root node_modules, but the linked packages
+  // will be hosted at the viewer node_modules.
+
+  const copyPluginPublicToDistBuild = createCopyPluginToDistForBuild(
+    SRC_DIR,
+    DIST_DIR,
+    [...pluginConfig.modes, ...pluginConfig.extensions],
+    'public'
+  );
+
+  const copyPluginPublicToDistLink = createCopyPluginToDistForLink(
+    SRC_DIR,
+    DIST_DIR,
+    [...pluginConfig.modes, ...pluginConfig.extensions, ...pluginConfig.public],
+    'public'
+  );
+
+  // Temporary way to copy chunks from the dist folder so that the become
+  // available
+  const copyPluginDistToDistBuild = createCopyPluginToDistForBuild(
+    SRC_DIR,
+    DIST_DIR,
+    [...pluginConfig.modes, ...pluginConfig.extensions],
+    'dist'
+  );
+
+  const copyPluginDistToDistLink = createCopyPluginToDistForLink(
+    SRC_DIR,
+    DIST_DIR,
+    [...pluginConfig.modes, ...pluginConfig.extensions],
+    'dist'
+  );
+
+  console.warn('copy plugins', [
+    ...copyPluginPublicToDistBuild,
+    ...copyPluginPublicToDistLink,
+    ...copyPluginDistToDistBuild,
+    ...copyPluginDistToDistLink,
+  ]);
+  return [
+    ...copyPluginPublicToDistBuild,
+    ...copyPluginPublicToDistLink,
+    ...copyPluginDistToDistBuild,
+    ...copyPluginDistToDistLink,
+  ];
+}
+
+module.exports = writePluginImportsFile;