init commit

.editorconfig

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+root = true
+
+[*]
+indent_style = tab
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[{package.json,*.yml}]
+indent_style = space
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false

.gitattributes

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+* text=auto

.gitignore

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+node_modules
+coverage
+.nyc_output

.travis.yml

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+language: node_js
+node_js:
+  - 'stable'
+  - '0.12'
+  - '0.10'

index.js

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+'use strict';
+module.exports = detective;
+module.exports.metadata = extractMetadataFromResult;
+
+function detective() {
+	return {
+		visitor: {
+			ImportDeclaration: visitImportDeclaration,
+			CallExpression: visitCallExpression
+		}
+	};
+}
+
+function visitImportDeclaration(path, state) {
+	if (includeImports(state)) {
+		addString(state, path.node.source.value);
+	}
+}
+
+function visitCallExpression(path, state) {
+	if (!includeRequire(state)) {
+		return;
+	}
+	var callee = path.get('callee');
+	if (callee.isIdentifier() && callee.node.name === word(state)) {
+		var arg = path.get('arguments.0');
+		if (arg && (!arg.isGenerated() || includeGenerated(state))) {
+			if (arg.isLiteral()) {
+				addString(state, arg.node.value);
+			}	else {
+				var loc = addExpression(state, arg.node);
+				if (attachExpressionSource(state)) {
+					loc.code = state.file.code.slice(loc.start, loc.end);
+				}
+			}
+		}
+	}
+}
+
+function extractMetadataFromResult(result) {
+	return result.metadata.requires;
+}
+
+function requireMetadata(state) {
+	var metadata = state.file.metadata;
+	return metadata.requires || (metadata.requires = {strings: [], expressions: []});
+}
+
+function addExpression(state, node) {
+	var loc = {start: node.start, end: node.end};
+	requireMetadata(state).expressions.push(loc);
+	return loc;
+}
+
+function addString(state, string) {
+	requireMetadata(state).strings.push(string);
+}
+
+// OPTION EXTRACTION:
+
+function word(state) {
+	return state.opts.word || 'require';
+}
+
+function includeGenerated(state) {
+	return Boolean(state.opts.includeGenerated);
+}
+
+function includeImports(state) {
+	return state.opts.includeImport !== false;
+}
+
+function includeRequire(state) {
+	return state.opts.includeRequire !== false;
+}
+
+function attachExpressionSource(state) {
+	return Boolean(state.opts.attachExpressionSource);
+}

license

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+The MIT License (MIT)
+
+Copyright (c) James Talmage <james@talmage.io> (github.com/jamestalmage)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

package.json

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+{
+  "name": "babel-plugin-detective",
+  "version": "0.0.0",
+  "description": "A Babel 6 plugin that scans the AST for require calls and import statements",
+  "license": "MIT",
+  "repository": "jamestalmage/babel-plugin-detective",
+  "author": {
+    "name": "James Talmage",
+    "email": "james@talmage.io",
+    "url": "github.com/jamestalmage"
+  },
+  "engines": {
+    "node": ">=0.10.0"
+  },
+  "scripts": {
+    "test": "xo && nyc mocha"
+  },
+  "files": [
+    "index.js"
+  ],
+  "keywords": [
+    "babel-plugin",
+    "detective",
+    "require",
+    "import",
+    "dependencies",
+    "scan",
+    "traverse"
+  ],
+  "devDependencies": {
+    "babel-core": "^6.1.21",
+    "babel-preset-es2015": "^6.1.18",
+    "babel-preset-stage-3": "^6.1.18",
+    "babylon": "^6.1.21",
+    "mocha": "^2.3.3",
+    "nyc": "^3.2.2"
+  }
+}

readme.md

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+# babel-detective [![Build Status](https://travis-ci.org/jamestalmage/babel-plugin-detective.svg?branch=master)](https://travis-ci.org/jamestalmage/babel-plugin-detective)
+
+> A Babel 6 plugin that scans the AST for require calls and import statements
+
+
+## Install
+
+```
+$ npm install --save babel-plugin-detective babel-core
+```
+
+## Usage
+
+```js
+import babel from 'babel-core';
+const detective = require('babel-plugin-detective');
+const myModule = require('my' + 'module');
+const opts = {};
+
+
+// data will be stored on `result.metadata.requires`
+var result = babel.transformFileAsync('/path/to/file', {
+  plugins:[['detective', opts]]
+});
+
+// convenience method to extract metadata
+var metadata = detective.metadata(result);
+
+console.log(metadata);
+// {
+//   strings: [
+//     'babel-core', 
+//     'babel-plugin-detective'
+//   ],
+//   expressions: [
+//     {start: 110, end: 125} // loc of 'my' + 'module' expression
+//   ]
+// }
+```
+
+
+## API
+
+### detective.metadata(previousParseResult)
+
+During traversal, the plugin stores each discovered require/import on the Babel metadata object.
+It can be extracted manually from `parseResult.metadata.requires`, or you can pass the parse result
+to this conveniences method.
+
+
+## Options
+
+
+### opts.includeGenerated
+
+Type: `boolean`
+Default: `false`
+
+If set to true, it will include `require` calls generated by previous plugins in the 
+ tool chain. This will lead to some duplicate entries if ES2015 import statements are
+ present in the file. This plugin already scans for ES2015 import statements, so you
+ only need to use this if there is some other type of generated require statement you
+ want to know about.
+
+### opts.includeImport
+
+ Type: `boolean`
+ Default: `true`
+
+ Include ES2015 imports in the metadata. All ES2015 imports will be of type `string`.
+
+### opts.includeRequire
+
+ Type: `boolean`
+ Default: `true`
+
+ Include CommonJS style `require(...)` statements in the metadata. CommonJS require
+  statements will be pushed on to `metadata.strings` if the argument is a string literal.
+  For dynamic expressions (`require(foo + bar)`), an object will be pushed on to `metadata.expressions`.
+  They have `start` and `end` properties that can be used to extract the code directly from the original source.
+
+### opts.word
+
+Type: `string`
+Default: `'require'`
+
+The name of the require function. You most likely do not need to change this.
+
+### opts.attachExpressionSource
+
+Type: `boolean`
+Default: `false`
+
+Attach the actual expression code to each member of `metadata.expressions`.
+
+```js
+ expressions: [
+   {start: 110, end: 125, code: "'my' + 'module'"}
+ ]
+```
+
+
+## License
+
+MIT © [James Talmage](http://github.com/jamestalmage)

test/fixtures/fixture.js

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+'use strict';
+
+import b from 'b';
+
+require('foo');
+
+require('foo' + 'bar');
+
+__dereq__('baz');
+
+require();

test/mocha.opts

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+--compilers js:./test/register-babel.js

test/register-babel.js

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+require('babel-core/register')({
+	presets: [
+		'stage-3',
+		'es2015'
+	],
+	only: ['test.js']
+});