Summary:
Thanks for submitting a PR! Please read these instructions carefully:
- [x] Explain the **motivation** for making this change.
- [x] Provide a **test plan** demonstrating that the code is solid.
- [x] Match the **code formatting** of the rest of the codebase.
- [x] Target the `master` branch, NOT a "stable" branch.
Previously, `isInstalled` was somewhat naively checking for the presence
of a string in the `build.gradle` file to determine whether or not that
dependency was already linked. I.e.:
```
compile project(':${name}')\n
```
…where `name` is replaced with the name of the dependency being checked.
This was inflexible as it only supported that particular format of
`compile` definition. Another, valid `compile` definition follows:
```
compile(project(':example') { … }
```
However, this failed the check because it didn't _exactly_ match the
format for which the check was searching the `build.gradle` contents. As
a result, running `react-native link` would incorrectly duplicate the
dependency definition and thus cause a crash upon launching the app.
This change adds an `installPattern` to the object returned from
`makeBuildPatch`, which includes the particular dependency name and is
valid for both `compile` definition formats.
This commit adds an additional compile definition in the associated fixture,
an additional test case in `isInstalled.spec.js` to check for this additional
format, and an additional test in `makeBuildPatch.spec.js` to ensure the
object returned includes the aforementioned `installPattern` Regex pattern.
Sign the [CLA][2], if you haven't already. ✅
Small pull requests are much easier to review and more likely to get merged. Make sure the PR does only one thing, otherwise please split it. ✅
Make sure all **tests pass** on both [Travis][3] and [Circle CI][4]. PRs that break tests are unlikely to be merged.
For more info, see the ["Pull Requests"][5] section of our "Contributing" guidelines.
[1]: https://medium.com/martinkonicek/what-is-a-test-plan-8bfc840ec171#.y9lcuqqi9
[2]: https://code.facebook.com/cla
[3]: https://travis-ci.org/facebook/react-native
[4]: http://circleci.com/gh/facebook/react-native
[5]: https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#pull-requests
Closes https://github.com/facebook/react-native/pull/14475
Differential Revision: D5398552
Pulled By: hramos
fbshipit-source-id: 1eaf84ba5bcfc43202f13c6b8fcfc68c30f36c33
5f1408858a