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Migration Guide

Description

The following guide highlights potential migration steps necessary during theia upgrades discovered when adopting the framework. Please see the latest version (master) for the most up-to-date information. Please contribute any issues you experienced when upgrading to a newer version of Theia to this document, even for previous releases.

Guide

v1.21.0

Frontend Source Maps

The frontend's source map naming changed. If you had something like the following in your debug configurations:

      "sourceMapPathOverrides": {
        "webpack://@theia/example-electron/*": "${workspaceFolder}/examples/electron/*"
      }

You can delete this whole block and replace it by the following:

      "webRoot": "${workspaceFolder}/examples/electron"

v1.17.0

ES2017

  • Theia was updated to ES2017
    • es5 VS Code extensions and Theia plugins are still supported
    • If you require an es5 codebase you should be able to transpile back to es5 using webpack
    • The following code transpiles back to an es2015 codebase: 
      config.module.rules.push({
    test: /\.js$/,
    use: {
        loader: 'babel-loader',
        options: {
            presets: [['@babel/preset-env', { targets: { chrome: '58', ie: '11' } }]],
        }
    }
});
    • Replace the targets with the ones that are needed for your use case
    • Make sure to use inversify@5.1.1. Theia requires inversify@^5.0.1 which means that 5.1.1 is compatible, but your lockfile might reference an older version.

v1.16.0

Release

  • N/A.

v1.15.0

Release

Keytar:

  • keytar was added as a dependency for the secrets API. and may require libsecret in your particular distribution to be functional:

    • Debian/Ubuntu: sudo apt-get install libsecret-1-dev
    • Red Hat-based: sudo yum install libsecret-devel
    • Arch Linux: sudo pacman -S libsecret
    • Alpine: apk add libsecret-dev

  • It is possible that a yarn resolution is necessary for keytar to work on older distributions (the fix was added in 1.16.0 by downgrading the dependency version):

    "resolutions": {
  "**/keytar": "7.6.0",
}

  • keytar uses prebuild-install to download prebuilt binaries. If you are experiencing issues where some shared libraries are missing from the system it was originally built upon, you can tell prebuild-install to build the native extension locally by setting the environment variable before performing yarn:

    # either:
export npm_config_build_from_source=true
yarn
# or:
npm_config_build_from_source=true yarn

Webpack

  • The version of webpack was upgraded from 4 to 5 and may require additional shims to work properly given an application's particular setup.

  • The webpack dependency may need to be updated if there are errors when performing a production build of the application due to a bogus webpack-sources dependency. The valid webpack version includes ^5.36.2 <5.47.0. If necessary, you can use a yarn resolution to fix the issue:

    "resolutions": {
  "**/webpack": "5.46.0",
}