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A GitHub Action to run web-ext commands

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kewisch/action-web-ext

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web-ext GitHub Action

Build

This action allows you to run a few mozilla/web-ext commands useful during add-on development. It supports lint, build and sign.

Generally you can use these inputs:

  • cmd: The command to run (lint, build, sign)
  • source: The directory the add-on is in. For sign, this should be the xpi file instead
  • artifacts: The output directory, defaults to web-ext-artifacts
  • verbose: Output more debugging if set to true
  • channel: The channel to use, listed or unlisted
  • ignoreFiles: A json string containing an array of files to be ignored. Web-ext by default already ignores the most frequently ignored files.

There are a few more specific to each command.

lint

Linting supports annotations, this is great for pull requests. A token is not required for this action, though if GITHUB_TOKEN is in the environment, it will be used to create a check run that gives you more detailed information.

name: "Lint"
on:
  push:
    branches:
      - main
  pull_request:

jobs:
  lint:
    name: "Lint"
    runs-on: ubuntu-latest
    steps:
      - name: "Checkout"
        uses: actions/checkout@v4

      - name: "web-ext lint"
        uses: kewisch/action-web-ext@v1
        with:
          cmd: lint
          source: src
          channel: listed

build

A simple web-ext build. You can use the target output for subsequent steps.

You can use the following extra options:

  • filename: Template string for the packed extension's filename, available for download through the job's artifacts. The placeholders in braces ({...}) are replaced by the corresponding entries in the extension's manifest.json. E.g. "{name}-{version}.xpi".
name: "Build"
on:
  push:
    branches:
      - main
  pull_request:

jobs:
  build:
    name: "Build"
    runs-on: ubuntu-latest
    steps:
      - name: "Checkout"
        uses: actions/checkout@v4

      - name: "web-ext build"
        id: web-ext-build
        uses: kewisch/action-web-ext@v1
        with:
          cmd: build
          source: src
          filename: "{name}-{version}.xpi"
          ignoreFiles: '[ "package.json","package-lock.json","yarn.lock" ]'

      - name: "Upload Artifact"
        uses: actions/upload-artifact@v4
        with:
          name: target.xpi
          path: ${{ steps.web-ext-build.outputs.target }}

sign

Send the add-on for signature to AMO. To reduce the load on AMO servers, please don't use this for on-commit or nightly builds. If you want to test your add-on you can do so in about:debugging. Using this for betas or releases is great though. Please note that listed add-ons will not be signed immediately, this is indicated during the build process but is not counted as a failure.

You can use the following extra options:

  • sourceCode: Submit a zip with source code to adhere to the source code submission policy.
  • metaDataFile: A JSON file with additional metadata for the version release. See example below for details.
  • approvalNotes: A shortcut to set .version.approval_notes in the submitted metadata.
  • releaseNotes: A shortcut to set .version.release_notes in the submitted metadata.
  • license: The license for the version. See example below for details.
  • licenseFile: If using a custom license, the license file to submit.
  • apiKey: The API key used for signing.
  • apiSecret: The API secret used for signing.
  • apiUrlPrefix: The URL of the signing API, defaults to AMO production.
  • timeout: The number of milliseconds to wait before giving up on a response from Mozilla's web service. Defaults to 900000 ms (15 minutes).

Changing apiUrlPrefix to https://addons.thunderbird.net/api/v4 will allow you to submit to addons.thunderbird.net, or you can make use of the staging/dev instances.

Please see the example below on how to use the sign command.

Complete example

This is a complete example of a publish script. It is triggered when you create and publish a release on GitHub. You can of course also turn things around and trigger on tag creation, and subsequently create the release if the upload succeeds.

name: "Publish"
on:
  release:
    types: [published]

jobs:
  sign:
    name: "Release"
    runs-on: ubuntu-latest
    steps:
      - name: "Checkout"
        uses: actions/checkout@v4

      - name: "web-ext lint"
        uses: kewisch/action-web-ext@v1
        with:
          cmd: lint
          source: src
          channel: listed

      - name: "web-ext build"
        id: web-ext-build
        uses: kewisch/action-web-ext@v1
        with:
          cmd: build
          source: src

      - name: "Collect sources"
        run: git archive --format=zip --output=sources.zip ${{ github.ref }}

      - name: "Collect metadata"
        id: metadata
        run: echo "json=$(jq -c . < amo_metadata.json)" >> $GITHUB_OUTPUT

      - name: "web-ext sign AMO"
        id: web-ext-sign
        uses: kewisch/action-web-ext@v1
        with:
          cmd: sign

          # Source must be the zip/xpi file of the add-on. If your add-on is required to submit
          # source as per https://extensionworkshop.com/documentation/publish/source-code-submission/
          # policy, you can use sourceCode with a zip file of the original sources. Submitting
          # source code is not always required, don't do so if you don't need to.
          source: ${{ steps.web-ext-build.outputs.target }}
          sourceCode: sources.zip
          channel: unlisted

          # Various metadata you can set through the API. See the documentation for the
          # --amo-metadata parameter to web-ext sign at
          # https://extensionworkshop.com/documentation/develop/web-ext-command-reference/#web-ext-sign
          # for more information. You can leave out metaDataFile if all you want to set is approval
          # notes, release notes, or a license.
          metaDataFile: amo_metadata.json
          approvalNotes: "Please find more information at https://github.com/kewisch/action-web-ext"
          releaseNotes: ${{ github.event.release.body }}

          # You can set one of the known licenses from
          # https://mozilla.github.io/addons-server/topics/api/licenses.html#license-list
          # by just passing the license property. If you have a custsom license, read it from a
          # file as follows.
          license: Apache-2.0       # You only need to specify a license file if you are using a
          licenseFile: LICENSE.md   # custom license. Please see action.yml for details.

          # Specify API secrets. No need to specify apiUrlPrefix, it defaults to AMO production
          apiKey: ${{ secrets.AMO_SIGN_KEY }}
          apiSecret: ${{ secrets.AMO_SIGN_SECRET }}
          timeout: 900000

      - name: "web-ext sign ATN"
        id: web-ext-sign
        uses: kewisch/action-web-ext@v1
        with:
          # This is how to sign for Thunderbird. Note that Thunderbird uses API v4, where many
          # metadata fields are not supported.
          cmd: sign
          source: ${{ steps.web-ext-build.outputs.target }}
          channel: listed
          apiUrlPrefix: "https://addons.thunderbird.net/api/v4"
          apiKey: ${{ secrets.ATN_SIGN_KEY }}
          apiSecret: ${{ secrets.ATN_SIGN_SECRET }}

      - name: "Attach release assets to release"
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh release upload ${{ github.event.release.tag_name }} \
            ${{ steps.web-ext-sign.outputs.target }}