v0.6.0

A bunch of changes to get jscodeshift in a better shape. This is minor version update because important dependencies and parser configurations have changed.

---

New

• New CLI option --parser-config: This option accepts a path to a JSON file and overrides the default options for flow or babylon. This allows you to tweak parser settings (e.g. legacy decorators). (46d250f)
• New CLI option --stdin: If provided, the list of files/directories is read from stdin. This makes it easier to pass large lists of files. (b6eaa0a)
• New API in transforms: api.report lets you print arbitrary text to stdout. Useful if another tools consumes jscodeshift's stdout. (c902a00) Example:

// In the transform
api.report('some data');

// in stdout
 REP path/to/file.js some data

• Support for Typescript source code, via babylon ( #286 ; @brieb). Use --parser=ts or --parser=tsx.

Improvements

• Updated babylon to v7 adding support for newer flow features (#282 , @wanderley )
• Updated recast to v0.16, which includes a bunch of printing improvments (#289 , @majapw )
• Enable more features in babylon and flow (#278 , @mjesun ; #281 , @jbrown215 )
• Improve handling of large lists of files (62b12ad, 9c83c39)

Fixes

• JSXElements's hasAttributes method understands value-less Boolean attributes (#277 , @artemruts )
• More reliable printing to stdout (62b12ad)

Internal

• Replaces deprecated nomnom with own implementation (a2becc5)
• Remove direct dependency on lodash (4701096)

v0.5.0

New

• Bump recast and babylon to support JSX fragments (#239)
• Add dynamicImport plugin to babylon parser. (#208)
• Allow specifying a testName for inline tests (#218)
• Add some() and every() methods for Collection (#216)

Fixed/Improved

• Fix error handling for http (#242)
• Perf: replace async with neo-async (#241)
• Fix renameTo renaming React component prop name unexpectedly (#220)
• Fix renameTo not taking property shorthands into account (#211)

v0.3.32

New

@TheSavior added the possibility to define tests inline, without having to create separate files for input and output:

const transform = require('../myTransform');
defineInlineTest(transform, {}, 'input', 'expected output');

#204

v0.3.31

Fixes

• Printing issues by bumping recast and babylon versions ( #200 , #201 @xixixao)
• Bug with template.expression when a literal with no interpolation was used ( #196, @jsnajdr)

Internally

• Drop usage of es6-promise ( #189, @wtgtybhertgeghgtwtg)

---

Thank you @xixixao, @jsnajdr and @wtgtybhertgeghgtwtg for contributing!

v0.3.30

Fixes

• Write changes to files atomically (#156, @alangpierce)
• Fix placeholder holder associate in template builders (#163, @robz)

v0.3.29

New

• Collections now have a .length property which is equivalent to .size() (#151, @DrewML)

• You can now reference jscodeshift as j directly from the transform's API options. I.e. you can write

  export default function transformer(file, { j }) {
    return j(file.source).toSource();
  }

  instead of

  export default function transformer(file, api) {
    const j = api.jscodeshift;
  
    return j(file.source).toSource();
  }

  or

  export default function transformer(file, {jscodeshift: j}) {
    return j(file.source).toSource();
  }

  (#153, @vjeux)

Improved

• Experimental settings have been enabled for the flow parser, so it is now be able to process files that use e.g. public class fields (a2e4a3a)

v0.3.28

New

• .editorconfig file ( #142 , @DrewML )

Changed

• Better error message when using .get on an empty collection ( #140 , @DrewML )
• jscodeshift now depends on recast v0.11.11 which adds better support for new flow type constructs.

v0.3.27

Fixes

• Use all CPUs if only one is available ( #137, @daedalus28 )
• Don't error if error stack trace is not available ( #134, 20422bd )

v0.3.26

New

• Return value of Runner.run includes elapsed time and stats collected via stats method ( #128, @iamdustan).
• jscodeshift --version also prints the used recast version ( #131, @keyanzhang)

Fixes

• renameTo ignores Identifiers that are not variable references ( #125, Robby Nevels)
• Transformers / codemods can use experimental features ( >= stage 1) and flow type annotations again (28eb515). This was a regressions.

v0.3.25

Fixed

• testUtils supports custom parsers (e5fb37d)
• testUtils also passes a stub for the stats method to the transformer (e5fb37d)