Compilation of locally written packages using .babelrc


#1

Hello all,

I have an large legacy Meteor application I am trying to refactor and update to the latest version of Meteor and I’m running in to an issue with the .babelrc file and my local packages (everything in the ./packages/*). As of version 1.3.4 it is possible to use the .babelrc file to add additional transforms like ```transform-class-properties``. But if I add a property to one of the classes in one of my packagess the application will not start and throw out an error along lines of:

=> Errors prevented startup:

   While processing files with ecmascript (for target web.browser):
   packages/andre:package-with-class-properties/package-with-class-properties.js:6:1: /packages/andre:package-with-class-properties/package-with-class-properties.js: Missing class properties transform.

   While building for os.osx.x86_64:
   imports/import-with-class-properties/index.js:2:1: /imports/import-with-class-properties/index.js: Missing class properties transform.

   While processing files with ecmascript (for target os.osx.x86_64):
   packages/andre:package-with-class-properties/package-with-class-properties.js:6:1: /packages/andre:package-with-class-properties/package-with-class-properties.js: Missing class properties transform.

=> Your application has errors. Waiting for file change.

I have created an experimentation project which can be found at: https://github.com/AndreSteenveld/meteor-import-from-packages

So far I’ve found this forum post by @clayne, which does suggest it is possible to use the transforms in packages. Although I think it uses the gadicc:ecmascript-hot package for complication instead of the default ecmascript package, which isn’t an option for me. A few posts later @benjamn suggests that the .babelrc file will work everywhere.

To make sure I have the same .babelrc file in every package I’ve tried symlinking it in to all the package directories (in the example project that would be $ln -s ./.babelrc ./packages/package-with-class-properties/.babelrc). But that causes the application to go in to an infinite loop during the startup:

=> Started MongoDB.

/Users/andre/.meteor/packages/ecmascript/.0.4.6_1.mz2y2r++os+web.browser+web.cordova/plugin.compile-ecmascript.os/npm/node_modules/meteor/promise/node_modules/meteor-promise/promise_server.js:165
      throw error;
            ^
Error: ELOOP, too many symbolic links encountered '/Users/andre/mkbid/importing-packages/packages/package-with-class-properties/.babelrc'
    at Object.fs.statSync (fs.js:696:18)
    at Object.wrapper (/tools/fs/files.js:1374:35)
    at Object.files.(anonymous function) [as stat] (/tools/fs/files.js:1475:27)
    at /tools/fs/watch.js:281:25
    at Array.forEach (native)
    at Function._.each._.forEach (/Users/andre/.meteor/packages/meteor-tool/.1.3.4_1.p7w3mw++os.osx.x86_64+web.browser+web.cordova/mt-os.osx.x86_64/dev_bundle/lib/node_modules/underscore/underscore.js:79:11)
    at readDirectory (/tools/fs/watch.js:276:5)
    at Watcher._fireIfDirectoryChanged (/tools/fs/watch.js:409:23)
    at /tools/fs/watch.js:670:12
    at Array.forEach (native)
    at Function._.each._.forEach (/Users/andre/.meteor/packages/meteor-tool/.1.3.4_1.p7w3mw++os.osx.x86_64+web.browser+web.cordova/mt-os.osx.x86_64/dev_bundle/lib/node_modules/underscore/underscore.js:79:11)
    at Watcher._checkDirectories (/tools/fs/watch.js:659:7)
    at new Watcher (/tools/fs/watch.js:356:10)
    at /tools/fs/watch.js:705:19
    at Function.time (/tools/tool-env/profile.js:305:10)
    at Object.isUpToDate (/tools/fs/watch.js:703:18)
    at IsopackCache._checkUpToDate (/tools/isobuild/isopack-cache.js:445:18)
    at /tools/isobuild/isopack-cache.js:330:29
    at /tools/utils/buildmessage.js:359:18
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:352:34
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:350:23
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at Object.enterJob (/tools/utils/buildmessage.js:324:26)
    at IsopackCache._loadLocalPackage (/tools/isobuild/isopack-cache.js:315:18)
    at /tools/isobuild/isopack-cache.js:249:16
    at Function.time (/tools/tool-env/profile.js:305:10)
    at /tools/isobuild/isopack-cache.js:248:17
    at /tools/utils/buildmessage.js:359:18
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:352:34
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:350:23
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at Object.enterJob (/tools/utils/buildmessage.js:324:26)
    at IsopackCache._ensurePackageLoaded (/tools/isobuild/isopack-cache.js:239:20)
    at /tools/isobuild/isopack-cache.js:76:14
    at /tools/packaging/package-map.js:57:7
    at Function._.each._.forEach (/Users/andre/.meteor/packages/meteor-tool/.1.3.4_1.p7w3mw++os.osx.x86_64+web.browser+web.cordova/mt-os.osx.x86_64/dev_bundle/lib/node_modules/underscore/underscore.js:87:22)
    at [object Object].eachPackage (/tools/packaging/package-map.js:49:7)
    at IsopackCache.buildLocalPackages (/tools/isobuild/isopack-cache.js:75:24)
    at /tools/project-context.js:771:25
    at /tools/utils/buildmessage.js:359:18
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:352:34
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:350:23
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at Object.enterJob (/tools/utils/buildmessage.js:324:26)
    at ProjectContext._.extend._buildLocalPackages (/tools/project-context.js:770:18)
    at /tools/project-context.js:281:9
    at /tools/utils/buildmessage.js:359:18
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:352:34
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:350:23
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at Object.enterJob (/tools/utils/buildmessage.js:324:26)
    at ProjectContext._completeStagesThrough (/tools/project-context.js:271:18)
    at /tools/project-context.js:263:12
    at Function.run (/tools/tool-env/profile.js:489:12)
    at ProjectContext.prepareProjectForBuild (/tools/project-context.js:262:13)
    at /tools/runners/run-app.js:557:29
    at /tools/utils/buildmessage.js:271:13
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:264:29
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:262:18
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at /tools/utils/buildmessage.js:253:23
    at [object Object].withValue (/tools/utils/fiber-helpers.js:89:14)
    at Object.capture (/tools/utils/buildmessage.js:252:19)
    at bundleApp (/tools/runners/run-app.js:556:31)
    at AppRunner._runOnce (/tools/runners/run-app.js:634:35)
    at AppRunner._fiber (/tools/runners/run-app.js:887:28)
    at /tools/runners/run-app.js:411:12

My questions/issues are:

  • How do I use the .babelrc file in my project and how do I make sure my local packages are converted as well?
  • If that is not possible is there an work around, that will not prevent me following the Meteor update path?

The application this applies to has roughly 40 packages, and a total line count of ~80k. I have to stress the fact that it is not the best designed application so “just” moving all the packages to the ./imports/ directory is not really an option.


#2

@benjamn can you confirm this issue?
It’s also happening to me