Releases: facebook/jscodeshift
v0.3.20
New
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--ignore-patternand--ignore-filecommand line arguments, which allow you to specify paths to ignore when using jscodeshift to traverse over a dictionary ( #107 , @chrisdarroch ) -
jscodeshift.usewhich you can pass a plugin too. A plugin would a function that accepts a jscodeshift instance and callsregisterMethodson it. This allows plugins to be decoupled form jscodeshift. In addition, if.useis called with the same plugin multiple times, subsequent calls are ignored.Example:
function myPlugin(jscodeshift) { jscodeshift.registerMethods({ myExtension() { ... }, }, jscodeshift.Identifier); } jscodeshift.use(myPlugin);
( #108 , @jamestalmage )
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Better
registerMethodsmethod! Until now, it was impossible to register two methods with the same name, even if it was attached to different types (and therefore, conceptually, different collections). @jamestalmage changed this in #110 and and now it's possible to register such methods if the types are not super- or sub-types.Example:
jscodeshift.registerMethods({ rename() { ... }, }, j.Identifier); jscodeshift.registerMethods({ rename() { ... }, }, j.VariableDeclarator);
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Unit tests for transforms: @Daniel15 added helper methods to make writing unit tests easier ( #104 ) . See the readme and the example for more information.
This results in a directory structure like this:
/MyTransform.js /__tests__/MyTransform-test.js /__testfixtures__/MyTransform.input.js /__testfixtures__/MyTransform.output.jsTo define a test, use defineTest from the testUtils module:
jest.autoMockOff(); const defineTest = require('jscodeshift/dist/testUtils').defineTest; defineTest(__dirname, 'MyTransform');