npm and error messages

node_modules/friendly-errors-webpack-plugin/src/transformers/babelSyntax.js

@@ -0,0 +1,38 @@
+'use strict';
+
+/**
+ * This will be removed in next versions as it is not handled in the babel-loader
+ * See: https://github.com/geowarin/friendly-errors-webpack-plugin/issues/2
+ */
+function cleanStackTrace(message) {
+  return message
+    .replace(/^\s*at\s.*:\d+:\d+[\s\)]*\n/gm, ''); // at ... ...:x:y
+}
+
+function cleanMessage(message) {
+  return message
+  // match until the last semicolon followed by a space
+  // this should match
+  // linux => "(SyntaxError: )Unexpected token (5:11)"
+  // windows => "(SyntaxError: C:/projects/index.js: )Unexpected token (5:11)"
+    .replace(/^Module build failed.*:\s/, 'Syntax Error: ');
+}
+
+function isBabelSyntaxError(e) {
+  return e.name === 'ModuleBuildError' &&
+    e.message.indexOf('SyntaxError') >= 0;
+}
+
+function transform(error) {
+  if (isBabelSyntaxError(error)) {
+    return Object.assign({}, error, {
+      message: cleanStackTrace(cleanMessage(error.message) + '\n'),
+      severity: 1000,
+      name: 'Syntax Error',
+    });
+  }
+
+  return error;
+}
+
+module.exports = transform;

node_modules/friendly-errors-webpack-plugin/src/transformers/esLintError.js

@@ -0,0 +1,19 @@
+'use strict';
+
+function isEslintError (e) {
+  return e.originalStack
+    .some(stackframe => stackframe.fileName && stackframe.fileName.indexOf('eslint-loader') > 0);
+}
+
+function transform(error) {
+  if (isEslintError(error)) {
+    return Object.assign({}, error, {
+      name: 'Lint error',
+      type: 'lint-error',
+    });
+  }
+
+  return error;
+}
+
+module.exports = transform;

node_modules/friendly-errors-webpack-plugin/src/transformers/moduleNotFound.js

@@ -0,0 +1,29 @@
+'use strict';
+
+const TYPE = 'module-not-found';
+
+function isModuleNotFoundError (e) {
+  const webpackError = e.webpackError || {};
+  return webpackError.dependencies
+    && webpackError.dependencies.length > 0
+    && e.name === 'ModuleNotFoundError'
+    && e.message.indexOf('Module not found') === 0;
+}
+
+function transform(error) {
+  const webpackError = error.webpackError;
+  if (isModuleNotFoundError(error)) {
+    const module = webpackError.dependencies[0].request;
+    return Object.assign({}, error, {
+      message: `Module not found ${module}`,
+      type: TYPE,
+      severity: 900,
+      module,
+      name: 'Module not found'
+    });
+  }
+
+  return error;
+}
+
+module.exports = transform;