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82 lines
1.7 KiB
82 lines
1.7 KiB
2 years ago
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# detective
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find all calls to `require()` by walking the AST
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[](http://travis-ci.org/browserify/detective)
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# example
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## strings
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strings_src.js:
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``` js
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var a = require('a');
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var b = require('b');
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var c = require('c');
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```
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strings.js:
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``` js
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var detective = require('detective');
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var fs = require('fs');
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var src = fs.readFileSync(__dirname + '/strings_src.js');
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var requires = detective(src);
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console.dir(requires);
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```
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output:
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```
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$ node examples/strings.js
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[ 'a', 'b', 'c' ]
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```
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# methods
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``` js
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var detective = require('detective');
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```
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## detective(src, opts)
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Give some source body `src`, return an array of all the `require()` calls with
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string arguments.
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The options parameter `opts` is passed along to `detective.find()`.
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## var found = detective.find(src, opts)
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Give some source body `src`, return `found` with:
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* `found.strings` - an array of each string found in a `require()`
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* `found.expressions` - an array of each stringified expression found in a
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`require()` call
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* `found.nodes` (when `opts.nodes === true`) - an array of AST nodes for each
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argument found in a `require()` call
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Optionally:
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* `opts.word` - specify a different function name instead of `"require"`
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* `opts.nodes` - when `true`, populate `found.nodes`
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* `opts.isRequire(node)` - a function returning whether an AST `CallExpression`
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node is a require call
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* `opts.parse` - supply options directly to
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[acorn](https://npmjs.org/package/acorn) with some support for esprima-style
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options `range` and `loc`
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* `opts.ecmaVersion` - default: 9
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# install
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With [npm](https://npmjs.org) do:
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```
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npm install detective
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```
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# license
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MIT
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