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dotslash-publish-release's Introduction

dotslash-publish-release

This GitHub action can create DotSlash files for executables that you have published as part of a GitHub release. The newly generated DotSlash files will be added to the existing release.

This action is designed to run after the GitHub Actions workflows that are responsible for uploading your primary release artifacts via gh release upload or equivalent.

Example

If you had separate workflows for each platform such as linux-release, macos-release, and windows-release, then you could define a new GitHub action under .github/workflows/dotslash.yml as follows:

name: Generate DotSlash files

on:
  workflow_run:
    # These must match the names of the workflows that publish
    # artifacts to your GitHub release.
    workflows: [linux-release, macos-release, windows-release]
    types:
      - completed

jobs:
  generate-dotslash-files:
    name: Generating and uploading DotSlash files
    runs-on: ubuntu-latest
    if: ${{ github.event.workflow_run.conclusion == 'success' }}
    steps:
      - uses: facebook/dotslash-publish-release@v1
        # This is necessary because the action uses
        # `gh release upload` to publish the generated DotSlash file(s)
        # as part of the release.
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          # Additional file that lives in your repo that defines
          # how your DotSlash file(s) should be generated.
          config: .github/workflows/dotslash-config.json
          # Tag for the release to to target.
          tag: ${{ github.event.workflow_run.head_branch }}

Note the config line that specifies a path to a JSON file in your repo that determines what DotSlash files to generate. For example, if this GitHub action were defined in the facebook/hermes repository on GitHub, and the contents of .github/workflows/dotslash-config.json were as follows:

{
  "outputs": {
    "hermes": {
      "platforms": {
        "macos-x86_64": {
          "regex": "^hermes-cli-darwin-",
          "path": "hermes"
        },
        "macos-aarch64": {
          "regex": "^hermes-cli-darwin-",
          "path": "hermes"
        },
        "linux-x86_64": {
          "regex": "^hermes-cli-linux-",
          "path": "hermes"
        },
        "windows-x86_64": {
          "regex": "^hermes-cli-windows-",
          "path": "hermes.exe"
        }
      }
    }
  }
}

Then this action would have added the following DotSlash file named hermes to the v0.12.0 release:

#!/usr/bin/env dotslash

{
  "name": "hermes",
  "platforms": {
    "macos-x86_64": {
      "size": 10600817,
      "hash": "blake3",
      "digest": "25f984911f199f9229ca0327c52700fa9a8db9aefe95e84f91ba6be69902436a",
      "format": "tar.gz",
      "path": "hermes",
      "providers": [
        {
          "url": "https://github.com/facebook/hermes/releases/download/v0.12.0/hermes-cli-darwin-v0.12.0.tar.gz"
        },
        {
          "type": "github-release",
          "repo": "https://github.com/facebook/hermes",
          "tag": "v0.12.0",
          "name": "hermes-cli-darwin-v0.12.0.tar.gz"
        }
      ]
    },
    "macos-aarch64": {
      "size": 10600817,
      "hash": "blake3",
      "digest": "25f984911f199f9229ca0327c52700fa9a8db9aefe95e84f91ba6be69902436a",
      "format": "tar.gz",
      "path": "hermes",
      "providers": [
        {
          "url": "https://github.com/facebook/hermes/releases/download/v0.12.0/hermes-cli-darwin-v0.12.0.tar.gz"
        },
        {
          "type": "github-release",
          "repo": "https://github.com/facebook/hermes",
          "tag": "v0.12.0",
          "name": "hermes-cli-darwin-v0.12.0.tar.gz"
        }
      ]
    },
    "linux-x86_64": {
      "size": 47099598,
      "hash": "blake3",
      "digest": "8d2c1bcefc2ce6e278167495810c2437e8050780ebb4da567811f1d754ad198c",
      "format": "tar.gz",
      "path": "hermes",
      "providers": [
        {
          "url": "https://github.com/facebook/hermes/releases/download/v0.12.0/hermes-cli-linux-v0.12.0.tar.gz"
        },
        {
          "type": "github-release",
          "repo": "https://github.com/facebook/hermes",
          "tag": "v0.12.0",
          "name": "hermes-cli-linux-v0.12.0.tar.gz"
        }
      ]
    },
    "windows-x86_64": {
      "size": 17456100,
      "hash": "blake3",
      "digest": "7efee4f92a05e34ccfa7c21c7a05f939d8b724bc802423d618db22efb83bfe1b",
      "format": "tar.gz",
      "path": "hermes.exe",
      "providers": [
        {
          "url": "https://github.com/facebook/hermes/releases/download/v0.12.0/hermes-cli-windows-v0.12.0.tar.gz"
        },
        {
          "type": "github-release",
          "repo": "https://github.com/facebook/hermes",
          "tag": "v0.12.0",
          "name": "hermes-cli-windows-v0.12.0.tar.gz"
        }
      ]
    }
  }
}

Note that each entry in platforms in the dotslash-config.json is reflected in the platforms section of the generated DotSlash file. Each config entry takes a "name" or a "regex" to use to identify the appropriate artifact in the release and the "path" indicates the "path" that should be used for the artifact in the generated DotSlash file.

The dotslash-publish-release action defaults to using BLAKE3 as the hash function, so it takes responsibility for computing the size and digest values. It also tries to "guess" the appropriate value of "format" based on the suffix of the URL, though this can also be specified explicitly, which is a bit safer:

{
  "outputs": {
    "hermes": {
      "platforms": {
        "macos-x86_64": {
          "regex": "^hermes-cli-darwin-",
          "format": "tar.gz",
          "path": "hermes"
        },
        ...

By default, dotslash-publish-release generates both the HTTP provider as well as the github-release provider for each entry in the DotSlash file. Either of these can be disabled via top-level "exclude-http-provider" and "exclude-github-release-provider" properties, respectively. For example, if you are using this action in a private GitHub repo, then you probably want to disable the HTTP provider:

{
  "exclude-http-provider": true,
  "outputs": {
    "hermes": {
      "platforms": {
        "macos-x86_64": {
          "regex": "^hermes-cli-darwin-",
          "format": "tar.gz",
          "path": "hermes"
        },
        ...

The generated DotSlash file would reflect this change:

#!/usr/bin/env dotslash

{
  "name": "hermes",
  "platforms": {
    "macos-x86_64": {
      "size": 10600817,
      "hash": "blake3",
      "digest": "25f984911f199f9229ca0327c52700fa9a8db9aefe95e84f91ba6be69902436a",
      "format": "zst",
      "path": "hermes",
      "providers": [
        {
          "type": "github-release",
          "repo": "https://github.com/facebook/hermes",
          "tag": "v0.12.0",
          "name": "hermes-cli-darwin-v0.12.0.tar.gz"
        }
      ]
    },
    ...

Config File Details

The most important part of the config file is the top-level "outputs" entry. Each key in this entry will be the name of the generated DotSlash file that is added to the release.

The "platforms" map for each entry requires that the keys are platforms that are recognized by DotSlash.

Each platform entry recognizes the following properties:

  • One of regex or name is required to identify the file in the release that should be used as the DotSlash artifact for the platform.
  • path is required and is used as the corresponding path value in the DotSlash file.
  • format is optional, but recommended. It must be a valid DotSlash artifact format, such as tar.gz. If the artifact is not compressed, then "format": null must be specified explicitly in the config JSON.
  • hash must be one of "blake3" or "sha256", but it defaults to "blake3", so it is optional.

License

dotslash-publish-release is MIT licensed.

dotslash-publish-release's People

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bigfootjon

dotslash-publish-release's Issues

Failure when dotslash path is a directory

I've been working on using this job for a private github repo and there is a folder with the same name as the target binary so it fails with this error:

Traceback (most recent call last):
  File "/process_config.py", line 452, in <module>
    main()
  File "/process_config.py", line 30, in main
    exit_code = _main()
  File "/process_config.py", line 118, in _main
    with open(output_file, "w") as f:
IsADirectoryError: [Errno 21] Is a directory: '/github/workspace/doedeploy'

I think this can be fixed by using a different path as the default output location

Embed build metadata in the generated dotslash file

In the Meta-internal version of dotslash we have a header with some valuable information: the source file used to generate the dotslash file and the CI job that actually generated the file. Meta employees can see an example of this header here: https://fburl.com/code/l0euqzmy

Would this be something we could consider adding to this action? All relevant information could be derived without any input from users.

Another related feature request is arbitrary extra metadata, though I don't have a concrete need for it at this time.

Ref facebook/buck2#565 for the inspiration behind this feature request

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