mirror of
https://github.com/crazy-max/ghaction-import-gpg.git
synced 2024-12-25 12:42:07 -05:00
250 lines
9 KiB
Markdown
250 lines
9 KiB
Markdown
[](https://github.com/crazy-max/ghaction-import-gpg/releases/latest)
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[](https://github.com/marketplace/actions/import-gpg)
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[](https://github.com/crazy-max/ghaction-import-gpg/actions?workflow=test)
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[](https://codecov.io/gh/crazy-max/ghaction-import-gpg)
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[](https://github.com/sponsors/crazy-max)
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[](https://www.paypal.me/crazyws)
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## About
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GitHub Action to easily import a GPG key.
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___
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* [Features](#features)
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* [Prerequisites](#prerequisites)
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* [Usage](#usage)
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* [Workflow](#workflow)
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* [Sign commits](#sign-commits)
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* [Use a subkey](#use-a-subkey)
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* [Set key's trust level](#set-keys-trust-level)
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* [Customizing](#customizing)
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* [inputs](#inputs)
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* [outputs](#outputs)
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* [Contributing](#contributing)
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* [License](#license)
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## Features
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* Works on Linux, macOS and Windows [virtual environments](https://help.github.com/en/articles/virtual-environments-for-github-actions#supported-virtual-environments-and-hardware-resources)
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* Allow seeding the internal cache of `gpg-agent` with provided passphrase
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* Signing-only subkeys support
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* Purge imported GPG key, cache information and kill agent from runner
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* (Git) Enable signing for Git commits, tags and pushes
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* (Git) Configure and check committer info against GPG key
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## Prerequisites
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First, [generate a GPG key](https://docs.github.com/en/github/authenticating-to-github/generating-a-new-gpg-key) and
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export the GPG private key as an ASCII armored version to your clipboard:
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```shell
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# macOS
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gpg --armor --export-secret-key joe@foo.bar | pbcopy
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# Ubuntu (assuming GNU base64)
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gpg --armor --export-secret-key joe@foo.bar -w0 | xclip
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# Arch
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gpg --armor --export-secret-key joe@foo.bar | xclip -selection clipboard -i
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# FreeBSD (assuming BSD base64)
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gpg --armor --export-secret-key joe@foo.bar | xclip
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```
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Paste your clipboard as a [`secret`](https://help.github.com/en/actions/configuring-and-managing-workflows/creating-and-storing-encrypted-secrets)
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named `GPG_PRIVATE_KEY` for example. Create another secret with the
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`PASSPHRASE` if applicable.
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## Usage
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### Workflow
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```yaml
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name: import-gpg
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on:
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push:
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branches: master
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jobs:
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import-gpg:
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runs-on: ubuntu-latest
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steps:
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-
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name: Checkout
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uses: actions/checkout@v4
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-
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name: Import GPG key
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uses: crazy-max/ghaction-import-gpg@v6
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with:
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gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
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passphrase: ${{ secrets.PASSPHRASE }}
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-
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name: List keys
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run: gpg -K
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```
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### Sign commits
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```yaml
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name: import-gpg
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on:
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push:
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branches: master
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jobs:
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sign-commit:
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runs-on: ubuntu-latest
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steps:
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-
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name: Checkout
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uses: actions/checkout@v4
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-
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name: Import GPG key
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uses: crazy-max/ghaction-import-gpg@v6
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with:
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gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
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passphrase: ${{ secrets.PASSPHRASE }}
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git_user_signingkey: true
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git_commit_gpgsign: true
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-
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name: Sign commit and push changes
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run: |
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echo foo > bar.txt
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git add .
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git commit -S -m "This commit is signed!"
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git push
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```
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### Use a subkey
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With the input `fingerprint`, you can specify which one of the subkeys in a GPG
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key you want to use for signing.
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```yaml
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name: import-gpg
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on:
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push:
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branches: master
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jobs:
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import-gpg:
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runs-on: ubuntu-latest
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steps:
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-
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name: Checkout
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uses: actions/checkout@v4
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-
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name: Import GPG key
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uses: crazy-max/ghaction-import-gpg@v6
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with:
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gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
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passphrase: ${{ secrets.PASSPHRASE }}
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fingerprint: "C17D11ADF199F12A30A0910F1F80449BE0B08CB8"
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-
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name: List keys
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run: gpg -K
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```
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For example, given this GPG key with a signing subkey:
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```
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pub ed25519 2021-09-24 [C]
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87F257B89CE462100BEC0FFE6071D218380FDCC8
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Keygrip = F5C3ABFAAB36B427FD98C4EDD0387E08EA1E8092
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uid [ unknown] Joe Bar <joe@bar.foo>
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sub ed25519 2021-09-24 [S]
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C17D11ADF199F12A30A0910F1F80449BE0B08CB8
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Keygrip = DEE0FC98F441519CA5DE5D79773CB29009695FEB
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```
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You can use the subkey with signing capability whose fingerprint is `C17D11ADF199F12A30A0910F1F80449BE0B08CB8`.
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### Set key's trust level
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With the `trust_level` input, you can specify the trust level of the GPG key.
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Valid values are:
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* `1`: unknown
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* `2`: never
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* `3`: marginal
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* `4`: full
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* `5`: ultimate
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```yaml
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name: import-gpg
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on:
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push:
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branches: master
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jobs:
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import-gpg:
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runs-on: ubuntu-latest
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steps:
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-
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name: Checkout
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uses: actions/checkout@v4
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-
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name: Import GPG key
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uses: crazy-max/ghaction-import-gpg@v6
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with:
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gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
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passphrase: ${{ secrets.PASSPHRASE }}
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trust_level: 5
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```
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## Customizing
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### inputs
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The following inputs can be used as `step.with` keys
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| Name | Type | Description |
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|-----------------------|--------|--------------------------------------------------------------------------------------------|
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| `gpg_private_key` | String | GPG private key exported as an ASCII armored version or its base64 encoding (**required**) |
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| `passphrase` | String | Passphrase of the GPG private key |
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| `trust_level` | String | Set key's trust level |
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| `git_config_global` | Bool | Set Git config global (default `false`) |
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| `git_user_signingkey` | Bool | Set GPG signing keyID for this Git repository (default `false`) |
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| `git_commit_gpgsign` | Bool | Sign all commits automatically. (default `false`) |
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| `git_tag_gpgsign` | Bool | Sign all tags automatically. (default `false`) |
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| `git_push_gpgsign` | String | Sign all pushes automatically. (default `if-asked`) |
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| `git_committer_name` | String | Set commit author's name (defaults to the name associated with the GPG key) |
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| `git_committer_email` | String | Set commit author's email (defaults to the email address associated with the GPG key) |
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| `workdir` | String | Working directory (below repository root) (default `.`) |
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| `fingerprint` | String | Specific fingerprint to use (subkey) |
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> **Note**
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>
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> `git_user_signingkey` needs to be enabled for `git_commit_gpgsign`, `git_tag_gpgsign`,
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> `git_push_gpgsign`, `git_committer_name`, `git_committer_email` inputs.
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### outputs
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Following outputs are available
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| Name | Type | Description |
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|---------------|--------|---------------------------------------------------------------------------------------------------------------------------------|
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| `fingerprint` | String | Fingerprint of the GPG key (recommended as [user ID](https://www.gnupg.org/documentation/manuals/gnupg/Specify-a-User-ID.html)) |
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| `keyid` | String | Low 64 bits of the X.509 certificate SHA-1 fingerprint |
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| `name` | String | Name associated with the GPG key |
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| `email` | String | Email address associated with the GPG key |
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## Contributing
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Want to contribute? Awesome! The most basic way to show your support is to star
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the project, or to raise issues. You can also support this project by [**becoming a sponsor on GitHub**](https://github.com/sponsors/crazy-max)
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or by making a [PayPal donation](https://www.paypal.me/crazyws) to ensure this
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journey continues indefinitely!
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Thanks again for your support, it is much appreciated! :pray:
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## License
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MIT. See `LICENSE` for more details.
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