Using babelify with new scoped packages

[larsgw]

Today I installed the new scoped packages of babel, e.g. @babel/core etc., including the plugins, e.g. @babel/plugin-proposal-pipeline-operator etc. However, babelify@8 still requires the 'old' babel-core package, AFAICT. I first installed babel-core@6 by accident, which had problems with the new .babelrc plugin syntax (before it would prefix babel-plugin- to get the package, I think; now it'd need to add plugin- between @babel/ and the plugin name).

However, [email protected], the latest I could find, gave the following error instead:

/home/larsw/project_dir/node_modules/babelify/index.js:65
  if (!babel.util.canCompile(filename, extensions)) {
                  ^

TypeError: Cannot read property 'canCompile' of undefined
  at /home/larsw/project_dir/node_modules/babelify/index.js:65:21
  at Babelify (/home/larsw/project_dir/node_modules/babelify/index.js:10:36)
  at nr (/home/larsw/project_dir/node_modules/module-deps/index.js:301:23)
  at onfile (/home/larsw/project_dir/node_modules/resolve/lib/async.js:56:21)
  at onex (/home/larsw/project_dir/node_modules/resolve/lib/async.js:104:32)
  at /home/larsw/project_dir/node_modules/resolve/lib/async.js:24:24
  at FSReqWrap.oncomplete (fs.js:153:5)

Note: I'm not sure if it's possible to use babelify with the new scoped packages at all.

[larsgw]

Here's my .babelrc:

{
  "presets": [
    ["@babel/env", {
      "targets": {
        "browser": [
          "> 1%",
          "last 10 versions",
          "ie > 7"
        ]
      }
    }]
  ],
  "plugins": [
    "@babel/proposal-unicode-property-regex"
  ],
  "env": {
    "test": {
      "plugins": ["istanbul"]
    }
  }
}

[noygal]

Getting the same error after changing the `babel-core' to point to the new scoped packages:

  "dependencies": {
    "@babel/cli": "^7.0.0-beta.32",
    "@babel/core": "^7.0.0-beta.3",
    "@babel/preset-env": "^7.0.0-beta.32",
    "@babel/preset-react": "^7.0.0-beta.32",
    "@babel/preset-stage-0": "^7.0.0-beta.32",
    "babel-core": "@babel/cli",
    "babelify": "^8.0.0"
  }

[larsgw]

I didn't even know you could do that. Does it work if you point it to @babel/core instead of @babel/cli, or was that just a typo? I can't test right now. [EDIT: I don't think it works for me]

[noygal]

Nope my bad, can't do that with npm...

But I did investigate some farther, the issue is with this condition:
https://github.com/babel/babelify/blob/master/index.js#L65

Babel 7 remove the util object all together: #231

I wanted to try my initial approach (replacing the babel-core with @babel/core), so I comment out those lines in the code and manually copied the @babel/core folder to babel-core:

rm -rf node_modules/babel-core
cp -a node_modules/\@babel/core/. node_modules/babel-core

I'm glade to say that this hack works!

[noygal]

I've open PR for this issue: #252

Meanwhile you can replace the package with my package:

"dependencies": {
    "@babel/core": "^7.0.0-beta.3",
    "@babel/preset-env": "^7.0.0-beta.32",
    "babel-core": "^6.26.0",
    "babelify": "git+https://github.com/noygal/babelify.git#feature/babel-7-support",
  }

And use the new options babel to pass your own babel package:

browserify().transform('babelify', {
  presets: ['@babel/preset-env'],
  babel: require('@babel/core')
})

[nehaleem]

I know *lify components are prehistoric, but please.. Merge this PR #252 . We are sadly using this. Thanks

[niftylettuce]

Can we get this merged please? Thanks!