feat(project): add default tempalte and modification generators

lib/generator/ModificationGenerator.js

@@ -0,0 +1,22 @@
+const {Generator} = require('../Generator');
+const path        = require('path');
+
+class ModificationGenerator extends Generator {
+  prepare(parameters) {
+    parameters.targetDirectory = parameters.sourceDirectory;
+    parameters.targetFile      = parameters.sourceFile + '.__tmp_replace';
+
+    parameters.move = {
+      sourceFile: path.join(parameters.sourceDirectory, parameters.targetFile),
+      targetFile: path.join(parameters.sourceDirectory, parameters.sourceFile)
+    };
+
+    return parameters;
+  }
+
+  generate() {
+    return this.runSteps(['read', 'modify', 'write', 'move']);
+  }
+}
+
+module.exports.ModificationGenerator = ModificationGenerator;

lib/generator/TemplateGenerator.js

@@ -0,0 +1,9 @@
+const {Generator} = require('../Generator');
+
+class TemplateGenerator extends Generator {
+  generate() {
+    return this.runSteps(['read', 'replace', 'write']);
+  }
+}
+
+module.exports.TemplateGenerator = TemplateGenerator;

lib/generator/index.js

@@ -0,0 +1,4 @@
+module.exports = {
+  ModificationGenerator: require('./ModificationGenerator'),
+  TemplateGenerator    : require('./TemplateGenerator'),
+};