Passing --sourcemap-output to extraPackagerArgs fails to build.

🐛 Bug Report

I want to generate sourcemaps when running ./gradlew assembleRelease.

I looked into react.gradle and saw that it accepts extraPackagerArgs and passes that to the bundle command.

So I tried passing the --sourcemap-output option in my build.gradle like so:

project.ext.react = [
  extraPackagerArgs: [ "--sourcemap-output", "$buildDir/intermediates/assets/release/index.android.bundle.map" ]
]

But I get the following error when running ./gradlew assembleRelease:

> Task :cntral:bundleReleaseJsAndAssets FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Failed to capture fingerprint of input files for task ':cntral:bundleReleaseJsAndAssets' property '$1' during up-to-date check.
> Failed to create MD5 hash for file '/Users/me/Development/app/tmp/skylight-87084.sock' as it does not exist.

To Reproduce

See above.

Expected Behavior

Generates an APK as well as the sourcemaps.

Environment

$ ./node_modules/.bin/react-native info

  React Native Environment Info:
    System:
      OS: macOS High Sierra 10.13.6
      CPU: (24) x64 Intel(R) Xeon(R) CPU           X5690  @ 3.47GHz
      Memory: 7.96 GB / 64.00 GB
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 10.11.0 - /usr/local/bin/node
      Yarn: 1.10.1 - /usr/local/bin/yarn
      npm: 6.4.1 - /usr/local/bin/npm
    SDKs:
      iOS SDK:
        Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
      Android SDK:
        API Levels: 15, 17, 22, 23, 27, 28
        Build Tools: 26.0.0, 28.0.3
        System Images: android-22 | Google APIs Intel x86 Atom, android-28 | Google APIs Intel x86 Atom
    IDEs:
      Xcode: 10.1/10B61 - /usr/bin/xcodebuild
    npmPackages:
      react: 16.6.3 => 16.6.3 
      react-native: 0.57.8 => 0.57.8 

[joshuapinter]

An update for you. I moved the extraPackagerArgs from the app/build.gradle to the root project’s build.gradle file with:

ext {
  react = [
    extraPackagerArgs: [ "--sourcemap-output", "app/build/generated/assets/react/release/index.android.bundle.map" ] // Needed for Bugsnag to decode minimized Javascript.
  ]
}

And it worked fine. So it had to do with trying to add the ext variables in the app’s build.gradle.

Anyway, doesn’t seem related to react-native so I’m going to close this Issue.

Thanks for looking at it regardless. 👍

[joshuapinter]

Weird. So I deleted that .sock file and re-ran. Now I’m getting the following error:

> Task :cntral:bundleReleaseJsAndAssets FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Failed to capture fingerprint of input files for task ':cntral:bundleReleaseJsAndAssets' property '$1' during up-to-date check.
> Could not list contents of '/Users/me/Development/ntwrk/node_modules/.bin/extract-zip'. Couldn't follow symbolic link.

So, ntwrk is a completely different project. Not related to the project I’m working on at all. What’s going on that it’s looking at these files?

And, to confirm, if I just manually update the react.gradle file and change the following:

"--reset-cache", "--entry-file", entryFile, "--bundle-output", jsBundleFile, "--assets-dest", resourcesDir, *extraArgs)

to

"--reset-cache", "--entry-file", entryFile, "--bundle-output", jsBundleFile, "--assets-dest", resourcesDir, "--sourcemap-output", "./app/build/generated/assets/react/release/index.android.bundle.map", *extraArgs)

It works fine and the sourcemaps are generated.

It’s just trying to add the extraPackagerArgs that causes these errors. So you’re right, in that, it’s not --sourcemap-output related, but instead extraPackagerArgs or project.ext.react related.

Anything else I can try to help diagnose?

Thanks!