From: Alex Mingoia <talk@alexmingoia.com>
Date: Sat, 21 May 2016 23:53:29 +0000 (-0700)
Subject: Do not check-in transpiled source.
X-Git-Tag: 1.0.0-rc.0~1^2~2
X-Git-Url: https://git.immae.eu/?a=commitdiff_plain;h=d34bc169e84d52b28279786ff400daced5fd8b8a;p=github%2Ffretlink%2Fpurs-loader.git

Do not check-in transpiled source.
---

diff --git a/index.js b/index.js
deleted file mode 100644
index 5f41361..0000000
--- a/index.js
+++ /dev/null
@@ -1,478 +0,0 @@
-'use strict';
-
-var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };
-
-var colors = require('chalk');
-var debug = require('debug')('purs-loader');
-var loaderUtils = require('loader-utils');
-var globby = require('globby');
-var Promise = require('bluebird');
-var fs = Promise.promisifyAll(require('fs'));
-var spawn = require('child_process').spawn;
-var path = require('path');
-var retryPromise = require('promise-retry');
-
-var psModuleRegex = /(?:^|\n)module\s+([\w\.]+)/i;
-var requireRegex = /require\(['"]\.\.\/([\w\.]+)['"]\)/g;
-
-module.exports = function purescriptLoader(source, map) {
-  var callback = this.async();
-  var config = this.options;
-  var query = loaderUtils.parseQuery(this.query);
-  var webpackOptions = this.options.purescriptLoader || {};
-
-  var options = Object.assign({
-    context: config.context,
-    psc: 'psc',
-    pscArgs: {},
-    pscBundle: 'psc-bundle',
-    pscBundleArgs: {},
-    pscIde: false,
-    pscIdeColors: webpackOptions.psc === 'psa' || query.psc === 'psa',
-    pscIdeArgs: {},
-    bundleOutput: 'output/bundle.js',
-    bundleNamespace: 'PS',
-    bundle: false,
-    warnings: true,
-    output: 'output',
-    src: [path.join('src', '**', '*.purs'), path.join('bower_components', 'purescript-*', 'src', '**', '*.purs')],
-    ffi: [path.join('src', '**', '*.js'), path.join('bower_components', 'purescript-*', 'src', '**', '*.js')]
-  }, webpackOptions, query);
-
-  this.cacheable && this.cacheable();
-
-  var cache = config.purescriptLoaderCache = config.purescriptLoaderCache || {
-    rebuild: false,
-    deferred: [],
-    bundleModules: []
-  };
-
-  if (!config.purescriptLoaderInstalled) {
-    config.purescriptLoaderInstalled = true;
-
-    // invalidate loader cache when bundle is marked as invalid (in watch mode)
-    this._compiler.plugin('invalid', function () {
-      cache = config.purescriptLoaderCache = {
-        rebuild: options.pscIde,
-        deferred: [],
-        ideServer: cache.ideServer
-      };
-    });
-
-    // add psc warnings to webpack compilation warnings
-    this._compiler.plugin('after-compile', function (compilation, callback) {
-      if (options.warnings && cache.warnings) {
-        compilation.warnings.unshift('PureScript compilation:\n' + cache.warnings);
-      }
-
-      if (cache.errors) {
-        compilation.errors.unshift('PureScript compilation:\n' + cache.errors);
-      }
-
-      callback();
-    });
-  }
-
-  var psModuleName = match(psModuleRegex, source);
-  var psModule = {
-    name: psModuleName,
-    load: function load(js) {
-      return callback(null, js);
-    },
-    reject: function reject(error) {
-      return callback(error);
-    },
-    srcPath: this.resourcePath,
-    srcDir: path.dirname(this.resourcePath),
-    jsPath: path.resolve(path.join(options.output, psModuleName, 'index.js')),
-    options: options,
-    cache: cache
-  };
-
-  debug('loader called', psModule.name);
-
-  if (options.bundle) {
-    cache.bundleModules.push(psModule.name);
-  }
-
-  if (cache.rebuild) {
-    return connectIdeServer(psModule).then(rebuild).then(toJavaScript).then(psModule.load).catch(psModule.reject);
-  }
-
-  if (cache.compilationFinished) {
-    return toJavaScript(psModule).then(psModule.load).catch(psModule.reject);
-  }
-
-  // We need to wait for compilation to finish before the loaders run so that
-  // references to compiled output are valid.
-  cache.deferred.push(psModule);
-
-  if (!cache.compilationStarted) {
-    return compile(psModule).then(function () {
-      return Promise.map(cache.deferred, function (psModule) {
-        if (_typeof(cache.ideServer) === 'object') cache.ideServer.kill();
-        return toJavaScript(psModule).then(psModule.load);
-      });
-    }).catch(function (error) {
-      cache.deferred[0].reject(error);
-      cache.deferred.slice(1).forEach(function (psModule) {
-        return psModule.reject(true);
-      });
-    });
-  }
-};
-
-// The actual loader is executed *after* purescript compilation.
-function toJavaScript(psModule) {
-  var options = psModule.options;
-  var cache = psModule.cache;
-  var bundlePath = path.resolve(options.bundleOutput);
-  var jsPath = cache.bundle ? bundlePath : psModule.jsPath;
-
-  debug('loading JavaScript for', psModule.name);
-
-  return Promise.props({
-    js: fs.readFileAsync(jsPath, 'utf8'),
-    psModuleMap: psModuleMap(options.src, cache)
-  }).then(function (result) {
-    var js = '';
-
-    if (options.bundle) {
-      // if bundling, return a reference to the bundle
-      js = 'module.exports = require("' + path.relative(psModule.srcDir, options.bundleOutput) + '")["' + psModule.name + '"]';
-    } else {
-      // replace require paths to output files generated by psc with paths
-      // to purescript sources, which are then also run through this loader.
-      var foreignRequire = 'require("' + path.resolve(path.join(psModule.options.output, psModule.name, 'foreign.js')) + '")';
-
-      js = result.js.replace(requireRegex, function (m, p1) {
-        return 'require("' + result.psModuleMap[p1] + '")';
-      }).replace(/require\(['"]\.\/foreign['"]\)/g, foreignRequire);
-    }
-
-    return js;
-  });
-}
-
-function compile(psModule) {
-  var options = psModule.options;
-  var cache = psModule.cache;
-  var stderr = [];
-
-  if (cache.compilationStarted) return Promise.resolve(psModule);
-
-  cache.compilationStarted = true;
-
-  var args = dargs(Object.assign({
-    _: options.src,
-    ffi: options.ffi,
-    output: options.output
-  }, options.pscArgs));
-
-  debug('spawning compiler %s %o', options.psc, args);
-
-  return new Promise(function (resolve, reject) {
-    console.log('\nCompiling PureScript...');
-
-    var compilation = spawn(options.psc, args);
-
-    compilation.stdout.on('data', function (data) {
-      return stderr.push(data.toString());
-    });
-    compilation.stderr.on('data', function (data) {
-      return stderr.push(data.toString());
-    });
-
-    compilation.on('close', function (code) {
-      console.log('Finished compiling PureScript.');
-      cache.compilationFinished = true;
-      if (code !== 0) {
-        cache.errors = stderr.join('');
-        reject(true);
-      } else {
-        cache.warnings = stderr.join('');
-        resolve(psModule);
-      }
-    });
-  }).then(function (compilerOutput) {
-    if (options.bundle) {
-      return bundle(options, cache).then(function () {
-        return psModule;
-      });
-    }
-    return psModule;
-  });
-}
-
-function rebuild(psModule) {
-  var options = psModule.options;
-  var cache = psModule.cache;
-
-  debug('attempting rebuild with psc-ide-client %s', psModule.srcPath);
-
-  var request = function request(body) {
-    return new Promise(function (resolve, reject) {
-      var args = dargs(options.pscIdeArgs);
-      var ideClient = spawn('psc-ide-client', args);
-
-      ideClient.stdout.once('data', function (data) {
-        var res = null;
-
-        try {
-          res = JSON.parse(data.toString());
-          debug(res);
-        } catch (err) {
-          return reject(err);
-        }
-
-        if (res && !Array.isArray(res.result)) {
-          return res.resultType === 'success' ? resolve(psModule) : reject('psc-ide rebuild failed');
-        }
-
-        Promise.map(res.result, function (item, i) {
-          debug(item);
-          return formatIdeResult(item, options, i, res.result.length);
-        }).then(function (compileMessages) {
-          if (res.resultType === 'error') {
-            if (res.result.some(function (item) {
-              return item.errorCode === 'UnknownModule';
-            })) {
-              console.log('Unknown module, attempting full recompile');
-              return compile(psModule).then(function () {
-                return request({ command: 'load' });
-              }).then(resolve).catch(function () {
-                return reject('psc-ide rebuild failed');
-              });
-            }
-            cache.errors = compileMessages.join('\n');
-            reject('psc-ide rebuild failed');
-          } else {
-            cache.warnings = compileMessages.join('\n');
-            resolve(psModule);
-          }
-        });
-      });
-
-      ideClient.stderr.once('data', function (data) {
-        return reject(data.toString());
-      });
-
-      ideClient.stdin.write(JSON.stringify(body));
-      ideClient.stdin.write('\n');
-    });
-  };
-
-  return request({
-    command: 'rebuild',
-    params: {
-      file: psModule.srcPath
-    }
-  });
-}
-
-function formatIdeResult(result, options, index, length) {
-  var srcPath = path.relative(options.context, result.filename);
-  var pos = result.position;
-  var fileAndPos = srcPath + ':' + pos.startLine + ':' + pos.startColumn;
-  var numAndErr = '[' + (index + 1) + '/' + length + ' ' + result.errorCode + ']';
-  numAndErr = options.pscIdeColors ? colors.yellow(numAndErr) : numAndErr;
-
-  return fs.readFileAsync(result.filename, 'utf8').then(function (source) {
-    var lines = source.split('\n').slice(pos.startLine - 1, pos.endLine);
-    var endsOnNewline = pos.endColumn === 1 && pos.startLine !== pos.endLine;
-    var up = options.pscIdeColors ? colors.red('^') : '^';
-    var down = options.pscIdeColors ? colors.red('v') : 'v';
-    var trimmed = lines.slice(0);
-
-    if (endsOnNewline) {
-      lines.splice(lines.length - 1, 1);
-      pos.endLine = pos.endLine - 1;
-      pos.endColumn = lines[lines.length - 1].length || 1;
-    }
-
-    // strip newlines at the end
-    if (endsOnNewline) {
-      trimmed = lines.reverse().reduce(function (trimmed, line, i) {
-        if (i === 0 && line === '') trimmed.trimming = true;
-        if (!trimmed.trimming) trimmed.push(line);
-        if (trimmed.trimming && line !== '') {
-          trimmed.trimming = false;
-          trimmed.push(line);
-        }
-        return trimmed;
-      }, []).reverse();
-      pos.endLine = pos.endLine - (lines.length - trimmed.length);
-      pos.endColumn = trimmed[trimmed.length - 1].length || 1;
-    }
-
-    var spaces = ' '.repeat(String(pos.endLine).length);
-    var snippet = trimmed.map(function (line, i) {
-      return '  ' + (pos.startLine + i) + '  ' + line;
-    }).join('\n');
-
-    if (trimmed.length === 1) {
-      snippet += '\n  ' + spaces + '  ' + ' '.repeat(pos.startColumn - 1) + up.repeat(pos.endColumn - pos.startColumn + 1);
-    } else {
-      snippet = '  ' + spaces + '  ' + ' '.repeat(pos.startColumn - 1) + down + '\n' + snippet;
-      snippet += '\n  ' + spaces + '  ' + ' '.repeat(pos.endColumn - 1) + up;
-    }
-
-    return Promise.resolve('\n' + numAndErr + ' ' + fileAndPos + '\n\n' + snippet + '\n\n' + result.message);
-  });
-}
-
-function bundle(options, cache) {
-  if (cache.bundle) return Promise.resolve(cache.bundle);
-
-  var stdout = [];
-  var stderr = cache.bundle = [];
-
-  var args = dargs(Object.assign({
-    _: [path.join(options.output, '*', '*.js')],
-    output: options.bundleOutput,
-    namespace: options.bundleNamespace
-  }, options.pscBundleArgs));
-
-  cache.bundleModules.forEach(function (name) {
-    return args.push('--module', name);
-  });
-
-  debug('spawning bundler %s %o', options.pscBundle, args.join(' '));
-
-  return new Promise(function (resolve, reject) {
-    console.log('Bundling PureScript...');
-
-    var compilation = spawn(options.pscBundle, args);
-
-    compilation.stdout.on('data', function (data) {
-      return stdout.push(data.toString());
-    });
-    compilation.stderr.on('data', function (data) {
-      return stderr.push(data.toString());
-    });
-    compilation.on('close', function (code) {
-      if (code !== 0) {
-        cache.errors = (cache.errors || '') + stderr.join('');
-        return reject(true);
-      }
-      cache.bundle = stderr;
-      resolve(fs.appendFileAsync('output/bundle.js', 'module.exports = ' + options.bundleNamespace));
-    });
-  });
-}
-
-// map of PS module names to their source path
-function psModuleMap(globs, cache) {
-  if (cache.psModuleMap) return Promise.resolve(cache.psModuleMap);
-
-  return globby(globs).then(function (paths) {
-    return Promise.props(paths.reduce(function (map, file) {
-      map[file] = fs.readFileAsync(file, 'utf8');
-      return map;
-    }, {})).then(function (srcMap) {
-      cache.psModuleMap = Object.keys(srcMap).reduce(function (map, file) {
-        var source = srcMap[file];
-        var psModuleName = match(psModuleRegex, source);
-        map[psModuleName] = path.resolve(file);
-        return map;
-      }, {});
-      return cache.psModuleMap;
-    });
-  });
-}
-
-function connectIdeServer(psModule) {
-  var options = psModule.options;
-  var cache = psModule.cache;
-
-  if (cache.ideServer) return Promise.resolve(psModule);
-
-  cache.ideServer = true;
-
-  var connect = function connect() {
-    return new Promise(function (resolve, reject) {
-      var args = dargs(options.pscIdeArgs);
-
-      debug('attempting to connect to psc-ide-server', args);
-
-      var ideClient = spawn('psc-ide-client', args);
-
-      ideClient.stderr.on('data', function (data) {
-        debug(data.toString());
-        cache.ideServer = false;
-        reject(true);
-      });
-      ideClient.stdout.once('data', function (data) {
-        debug(data.toString());
-        if (data.toString()[0] === '{') {
-          var res = JSON.parse(data.toString());
-          if (res.resultType === 'success') {
-            cache.ideServer = ideServer;
-            resolve(psModule);
-          } else {
-            cache.ideServer = ideServer;
-            reject(true);
-          }
-        } else {
-          cache.ideServer = false;
-          reject(true);
-        }
-      });
-      ideClient.stdin.resume();
-      ideClient.stdin.write(JSON.stringify({ command: 'load' }));
-      ideClient.stdin.write('\n');
-    });
-  };
-
-  var args = dargs(Object.assign({
-    outputDirectory: options.output
-  }, options.pscIdeArgs));
-
-  debug('attempting to start psc-ide-server', args);
-
-  var ideServer = cache.ideServer = spawn('psc-ide-server', []);
-  ideServer.stderr.on('data', function (data) {
-    debug(data.toString());
-  });
-
-  return retryPromise(function (retry, number) {
-    return connect().catch(function (error) {
-      if (!cache.ideServer && number === 9) {
-        debug(error);
-
-        console.log('failed to connect to or start psc-ide-server, ' + 'full compilation will occur on rebuild');
-
-        return Promise.resolve(psModule);
-      }
-
-      return retry(error);
-    });
-  }, {
-    retries: 9,
-    factor: 1,
-    minTimeout: 333,
-    maxTimeout: 333
-  });
-}
-
-function match(regex, str) {
-  var matches = str.match(regex);
-  return matches && matches[1];
-}
-
-function dargs(obj) {
-  return Object.keys(obj).reduce(function (args, key) {
-    var arg = '--' + key.replace(/[A-Z]/g, '-$&').toLowerCase();
-    var val = obj[key];
-
-    if (key === '_') val.forEach(function (v) {
-      return args.push(v);
-    });else if (Array.isArray(val)) val.forEach(function (v) {
-      return args.push(arg, v);
-    });else args.push(arg, obj[key]);
-
-    return args.filter(function (arg) {
-      return typeof arg !== 'boolean';
-    });
-  }, []);
-}