text: /*
   * 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.
   *
  */
  
  const PROJECT_DIR = process.env.PROJECT_DIR;
  
  let exec = require('child_process').execSync;
  let fs = require('fs');
  let util = require('util');
  let { rule, rmRf } = require(`${PROJECT_DIR}/lib/jake`);
  
  directory('tmpsrc');
  directory('tmpbin');
  
  ////////////////////////////////////////////////////////////
  // Simple Suffix Rule
  file('tmp', ['tmp_init', 'tmp_dep1.o', 'tmp_dep2.o'], function (params) {
    console.log('tmp task');
    let data1 = fs.readFileSync('tmp_dep1.o');
    let data2 = fs.readFileSync('tmp_dep2.o');
    fs.writeFileSync('tmp', data1 + data2);
  });
  
  rule('.o', '.c', function () {
    let cmd = util.format('cp %s %s', this.source, this.name);
    console.log(cmd + ' task');
    exec(cmd);
  });
  
  file('tmp_dep1.c', function () {
    fs.writeFileSync('tmp_dep1.c', 'src_1');
    console.log('tmp_dep1.c task');
  });
  
  // note that tmp_dep2.o depends on tmp_dep2.c, which is a
  // static file.
  task('tmp_init', function () {
    fs.writeFileSync('tmp_dep2.c', 'src_2');
    console.log('tmp_dep2.c task');
  });
  ////////////////////////////////////////////////////////////
  
  ////////////////////////////////////////////////////////////
  // Pattern Rule
  file('tmp_p', ['tmp_init', 'tmp_dep1.oo', 'tmp_dep2.oo'], function (params) {
    console.log('tmp pattern task');
    let data1 = fs.readFileSync('tmp_dep1.oo');
    let data2 = fs.readFileSync('tmp_dep2.oo');
    fs.writeFileSync('tmp_p', data1 + data2 + ' pattern');
  });
  
  rule('%.oo', '%.c', function () {
    let cmd = util.format('cp %s %s', this.source, this.name);
    console.log(cmd + ' task');
    exec(cmd);
  });
  ////////////////////////////////////////////////////////////
  
  ////////////////////////////////////////////////////////////
  // Pattern Rule with Folder
  // i.e.  rule('tmpbin/%.oo', 'tmpsrc/%.c', ...
  file('tmp_pf', [
    'tmp_src_init'
    , 'tmpbin'
    , 'tmpbin/tmp_dep1.oo'
    , 'tmpbin/tmp_dep2.oo' ], function (params) {
    console.log('tmp pattern folder task');
    let data1 = fs.readFileSync('tmpbin/tmp_dep1.oo');
    let data2 = fs.readFileSync('tmpbin/tmp_dep2.oo');
    fs.writeFileSync('tmp_pf', data1 + data2 + ' pattern folder');
  });
  
  rule('tmpbin/%.oo', 'tmpsrc/%.c', function () {
    let cmd = util.format('cp %s %s', this.source, this.name);
    console.log(cmd + ' task');
    exec(cmd);
  });
  
  file('tmpsrc/tmp_dep2.c',['tmpsrc'], function () {
    fs.writeFileSync('tmpsrc/tmp_dep2.c', 'src/src_2');
    console.log('tmpsrc/tmp_dep2.c task');
  });
  
  // Create static files in folder tmpsrc.
  task('tmp_src_init', ['tmpsrc'], function () {
    fs.writeFileSync('tmpsrc/tmp_dep1.c', 'src/src_1');
    console.log('tmpsrc/tmp_dep1.c task');
  });
  ////////////////////////////////////////////////////////////
  
  
  ////////////////////////////////////////////////////////////
  // Namespace Test. This is a Mixed Test.
  // Test for
  // -  rules belonging to different namespace.
  // -  rules with folder and pattern
  task('tmp_ns', [
    'tmpbin'
    , 'rule:init'
    , 'tmpbin/tmp_dep2.oo'    // *** This relies on a rule defined before.
    , 'rule:tmpbin/dep1.oo'
    , 'rule:tmpbin/file2.oo' ], function () {
    console.log('tmp pattern folder namespace task');
    let data1 = fs.readFileSync('tmpbin/dep1.oo');
    let data2 = fs.readFileSync('tmpbin/tmp_dep2.oo');
    let data3 = fs.readFileSync('tmpbin/file2.oo');
    fs.writeFileSync('tmp_ns', data1 + data2 + data3 + ' pattern folder namespace');
  });
  
  namespace('rule', function () {
    task('init', ['tmpsrc'], function () {
      fs.writeFileSync('tmpsrc/file2.c', 'src/src_3');
      console.log('tmpsrc/file2.c init task');
    });
  
    file('tmpsrc/dep1.c',['tmpsrc'], function () {
      fs.writeFileSync('tmpsrc/dep1.c', 'src/src_1');
      console.log('tmpsrc/dep1.c task');
    }, {async: true});
  
    rule('tmpbin/%.oo', 'tmpsrc/%.c', function () {
      let cmd = util.format('cp %s %s', this.source, this.name);
      console.log(cmd + ' ns task');
      exec(cmd);
    });
  });
  ////////////////////////////////////////////////////////////
  
  ////////////////////////////////////////////////////////////
  // Chain rule
  // rule('tmpbin/%.pdf', 'tmpbin/%.dvi', function() { ...
  // rule('tmpbin/%.dvi', 'tmpsrc/%.tex', ['tmpbin'], function() { ...
  task('tmp_cr', [
    'chainrule:init'
    , 'chainrule:tmpbin/file1.pdf'
    , 'chainrule:tmpbin/file2.pdf' ], function () {
    console.log('tmp chainrule namespace task');
    let data1 = fs.readFileSync('tmpbin/file1.pdf');
    let data2 = fs.readFileSync('tmpbin/file2.pdf');
    fs.writeFileSync('tmp_cr', data1 + data2 + ' chainrule namespace');
  });
  
  namespace('chainrule', function () {
    task('init', ['tmpsrc', 'tmpbin'], function () {
      fs.writeFileSync('tmpsrc/file1.tex', 'tex1 ');
      fs.writeFileSync('tmpsrc/file2.tex', 'tex2 ');
      console.log('chainrule init task');
    });
  
    rule('tmpbin/%.pdf', 'tmpbin/%.dvi', function () {
      let cmd = util.format('cp %s %s', this.source, this.name);
      console.log(cmd + ' dvi->pdf task');
      exec(cmd);
    });
  
    rule('tmpbin/%.dvi', 'tmpsrc/%.tex', ['tmpbin'], function () {
      let cmd = util.format('cp %s %s', this.source, this.name);
      console.log(cmd + ' tex->dvi task');
      exec(cmd);
    });
  });
  ////////////////////////////////////////////////////////////
  namespace('precedence', function () {
    task('test', ['foo.html'], function () {
      console.log('ran test');
    });
  
    rule('.html', '.txt', function () {
      console.log('created html');
      let data = fs.readFileSync(this.source);
      fs.writeFileSync(this.name, data.toString());
    });
  });
  
  namespace('regexPattern', function () {
    task('test', ['foo.html'], function () {
      console.log('ran test');
    });
  
    rule(/\.html$/, '.txt', function () {
      console.log('created html');
      let data = fs.readFileSync(this.source);
      fs.writeFileSync(this.name, data.toString());
    });
  });
  
  namespace('sourceFunction', function () {
  
    let srcFunc = function (taskName) {
      return taskName.replace(/\.[^.]+$/, '.txt');
    };
  
    task('test', ['foo.html'], function () {
      console.log('ran test');
    });
  
    rule('.html', srcFunc, function () {
      console.log('created html');
      let data = fs.readFileSync(this.source);
      fs.writeFileSync(this.name, data.toString());
    });
  });
  
  ////////////////////////////////////////////////////////////
  task('clean', function () {
    rmRf('./foo');
    rmRf('./tmp');
  });
  