MACHIN

32/node_modules/jake/lib/program.js

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+/*
+ * Jake JavaScript build tool
+ * Copyright 2112 Matthew Eernisse (mde@fleegix.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+*/
+
+let fs = require('fs');
+let parseargs = require('./parseargs');
+let utils = require('./utils');
+let Program;
+let usage = require('fs').readFileSync(`${__dirname}/../usage.txt`).toString();
+let { Task } = require('./task/task');
+
+function die(msg) {
+  console.log(msg);
+  process.stdout.write('', function () {
+    process.stderr.write('', function () {
+      process.exit();
+    });
+  });
+}
+
+let preempts = {
+  version: function () {
+    die(jake.version);
+  },
+  help: function () {
+    die(usage);
+  }
+};
+
+let AVAILABLE_OPTS = [
+  { full: 'jakefile',
+    abbr: 'f',
+    expectValue: true
+  },
+  { full: 'quiet',
+    abbr: 'q',
+    expectValue: false
+  },
+  { full: 'directory',
+    abbr: 'C',
+    expectValue: true
+  },
+  { full: 'always-make',
+    abbr: 'B',
+    expectValue: false
+  },
+  { full: 'tasks',
+    abbr: 'T',
+    expectValue: false,
+    allowValue: true
+  },
+  // Alias t
+  { full: 'tasks',
+    abbr: 't',
+    expectValue: false,
+    allowValue: true
+  },
+  // Alias ls
+  { full: 'tasks',
+    abbr: 'ls',
+    expectValue: false,
+    allowValue: true
+  },
+  { full: 'help',
+    abbr: 'h',
+  },
+  { full: 'version',
+    abbr: 'V',
+  },
+  // Alias lowercase v
+  { full: 'version',
+    abbr: 'v',
+  },
+  { full: 'jakelibdir',
+    abbr: 'J',
+    expectValue: true
+  },
+  { full: 'allow-rejection',
+    abbr: 'ar',
+    expectValue: false
+  }
+];
+
+Program = function () {
+  this.availableOpts = AVAILABLE_OPTS;
+  this.opts = {};
+  this.taskNames = null;
+  this.taskArgs = null;
+  this.envVars = null;
+  this.die = die;
+};
+
+Program.prototype = new (function () {
+
+  this.handleErr = function (err) {
+    if (jake.listeners('error').length !== 0) {
+      jake.emit('error', err);
+      return;
+    }
+
+    if (jake.listeners('error').length) {
+      jake.emit('error', err);
+      return;
+    }
+
+    utils.logger.error('jake aborted.');
+    if (err.stack) {
+      utils.logger.error(err.stack);
+    }
+    else {
+      utils.logger.error(err.message);
+    }
+
+    process.stdout.write('', function () {
+      process.stderr.write('', function () {
+        jake.errorCode = jake.errorCode || 1;
+        process.exit(jake.errorCode);
+      });
+    });
+  };
+
+  this.parseArgs = function (args) {
+    let result = (new parseargs.Parser(this.availableOpts)).parse(args);
+    this.setOpts(result.opts);
+    this.setTaskNames(result.taskNames);
+    this.setEnvVars(result.envVars);
+  };
+
+  this.setOpts = function (options) {
+    let opts = options || {};
+    Object.assign(this.opts, opts);
+  };
+
+  this.internalOpts = function (options) {
+    this.availableOpts = this.availableOpts.concat(options);
+  };
+
+  this.autocompletions = function (cur) {
+    let p; let i; let task;
+    let commonPrefix = '';
+    let matches = [];
+
+    for (p in jake.Task) {
+      task = jake.Task[p];
+      if (
+        'fullName' in task
+          && (
+            // if empty string, program converts to true
+            cur === true ||
+            task.fullName.indexOf(cur) === 0
+          )
+      ) {
+        if (matches.length === 0) {
+          commonPrefix = task.fullName;
+        }
+        else {
+          for (i = commonPrefix.length; i > -1; --i) {
+            commonPrefix = commonPrefix.substr(0, i);
+            if (task.fullName.indexOf(commonPrefix) === 0) {
+              break;
+            }
+          }
+        }
+        matches.push(task.fullName);
+      }
+    }
+
+    if (matches.length > 1 && commonPrefix === cur) {
+      matches.unshift('yes-space');
+    }
+    else {
+      matches.unshift('no-space');
+    }
+
+    process.stdout.write(matches.join(' '));
+  };
+
+  this.setTaskNames = function (names) {
+    if (names && !Array.isArray(names)) {
+      throw new Error('Task names must be an array');
+    }
+    this.taskNames = (names && names.length) ? names : ['default'];
+  };
+
+  this.setEnvVars = function (vars) {
+    this.envVars = vars || null;
+  };
+
+  this.firstPreemptiveOption = function () {
+    let opts = this.opts;
+    for (let p in opts) {
+      if (preempts[p]) {
+        return preempts[p];
+      }
+    }
+    return false;
+  };
+
+  this.init = function (configuration) {
+    let self = this;
+    let config = configuration || {};
+    if (config.options) {
+      this.setOpts(config.options);
+    }
+    if (config.taskNames) {
+      this.setTaskNames(config.taskNames);
+    }
+    if (config.envVars) {
+      this.setEnvVars(config.envVars);
+    }
+    process.addListener('uncaughtException', function (err) {
+      self.handleErr(err);
+    });
+    if (!this.opts['allow-rejection']) {
+      process.addListener('unhandledRejection', (reason, promise) => {
+        utils.logger.error('Unhandled rejection at:', promise, 'reason:', reason);
+        self.handleErr(reason);
+      });
+    }
+    if (this.envVars) {
+      Object.assign(process.env, this.envVars);
+    }
+  };
+
+  this.run = function () {
+    let rootTask;
+    let taskNames;
+    let dirname;
+    let opts = this.opts;
+
+    if (opts.autocomplete) {
+      return this.autocompletions(opts['autocomplete-cur'], opts['autocomplete-prev']);
+    }
+    // Run with `jake -T`, just show descriptions
+    if (opts.tasks) {
+      return jake.showAllTaskDescriptions(opts.tasks);
+    }
+
+    taskNames = this.taskNames;
+    if (!(Array.isArray(taskNames) && taskNames.length)) {
+      throw new Error('Please pass jake.runTasks an array of task-names');
+    }
+
+    // Set working dir
+    dirname = opts.directory;
+    if (dirname) {
+      if (fs.existsSync(dirname) &&
+        fs.statSync(dirname).isDirectory()) {
+        process.chdir(dirname);
+      }
+      else {
+        throw new Error(dirname + ' is not a valid directory path');
+      }
+    }
+
+    rootTask = task(Task.ROOT_TASK_NAME, taskNames, function () {});
+    rootTask._internal = true;
+
+    rootTask.once('complete', function () {
+      jake.emit('complete');
+    });
+    jake.emit('start');
+    rootTask.invoke();
+  };
+
+})();
+
+module.exports.Program = Program;