mirror of
https://github.com/idanoo/GoScrobble.git
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117 lines
3.9 KiB
JavaScript
117 lines
3.9 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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const friendlySyntaxErrorLabel = 'Syntax error:';
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function isLikelyASyntaxError(message) {
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return message.indexOf(friendlySyntaxErrorLabel) !== -1;
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}
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// Cleans up webpack error messages.
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function formatMessage(message) {
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let lines = message.split('\n');
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// Strip webpack-added headers off errors/warnings
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// https://github.com/webpack/webpack/blob/master/lib/ModuleError.js
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lines = lines.filter(line => !/Module [A-z ]+\(from/.test(line));
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// Transform parsing error into syntax error
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// TODO: move this to our ESLint formatter?
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lines = lines.map(line => {
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const parsingError = /Line (\d+):(?:(\d+):)?\s*Parsing error: (.+)$/.exec(
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line
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);
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if (!parsingError) {
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return line;
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}
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const [, errorLine, errorColumn, errorMessage] = parsingError;
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return `${friendlySyntaxErrorLabel} ${errorMessage} (${errorLine}:${errorColumn})`;
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});
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message = lines.join('\n');
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// Smoosh syntax errors (commonly found in CSS)
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message = message.replace(
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/SyntaxError\s+\((\d+):(\d+)\)\s*(.+?)\n/g,
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`${friendlySyntaxErrorLabel} $3 ($1:$2)\n`
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);
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// Clean up export errors
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message = message.replace(
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/^.*export '(.+?)' was not found in '(.+?)'.*$/gm,
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`Attempted import error: '$1' is not exported from '$2'.`
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);
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message = message.replace(
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/^.*export 'default' \(imported as '(.+?)'\) was not found in '(.+?)'.*$/gm,
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`Attempted import error: '$2' does not contain a default export (imported as '$1').`
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);
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message = message.replace(
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/^.*export '(.+?)' \(imported as '(.+?)'\) was not found in '(.+?)'.*$/gm,
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`Attempted import error: '$1' is not exported from '$3' (imported as '$2').`
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);
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lines = message.split('\n');
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// Remove leading newline
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if (lines.length > 2 && lines[1].trim() === '') {
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lines.splice(1, 1);
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}
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// Clean up file name
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lines[0] = lines[0].replace(/^(.*) \d+:\d+-\d+$/, '$1');
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// Cleans up verbose "module not found" messages for files and packages.
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if (lines[1] && lines[1].indexOf('Module not found: ') === 0) {
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lines = [
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lines[0],
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lines[1]
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.replace('Error: ', '')
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.replace('Module not found: Cannot find file:', 'Cannot find file:'),
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];
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}
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// Add helpful message for users trying to use Sass for the first time
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if (lines[1] && lines[1].match(/Cannot find module.+node-sass/)) {
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lines[1] = 'To import Sass files, you first need to install node-sass.\n';
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lines[1] +=
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'Run `npm install node-sass` or `yarn add node-sass` inside your workspace.';
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}
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message = lines.join('\n');
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// Internal stacks are generally useless so we strip them... with the
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// exception of stacks containing `webpack:` because they're normally
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// from user code generated by webpack. For more information see
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// https://github.com/facebook/create-react-app/pull/1050
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message = message.replace(
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/^\s*at\s((?!webpack:).)*:\d+:\d+[\s)]*(\n|$)/gm,
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''
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); // at ... ...:x:y
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message = message.replace(/^\s*at\s<anonymous>(\n|$)/gm, ''); // at <anonymous>
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lines = message.split('\n');
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// Remove duplicated newlines
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lines = lines.filter(
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(line, index, arr) =>
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index === 0 || line.trim() !== '' || line.trim() !== arr[index - 1].trim()
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);
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// Reassemble the message
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message = lines.join('\n');
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return message.trim();
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}
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function formatWebpackMessages(json) {
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const formattedErrors = json.errors.map(formatMessage);
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const formattedWarnings = json.warnings.map(formatMessage);
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const result = { errors: formattedErrors, warnings: formattedWarnings };
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if (result.errors.some(isLikelyASyntaxError)) {
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// If there are any syntax errors, show just them.
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result.errors = result.errors.filter(isLikelyASyntaxError);
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}
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return result;
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}
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module.exports = formatWebpackMessages;
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