initial commit

Dockerfile

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+FROM alpine:3.10
+
+RUN apk update && apk upgrade && \
+    apk add --no-cache git openssh
+
+COPY mirror.sh /mirror.sh
+COPY setup-ssh.sh /setup-ssh.sh
+
+ENTRYPOINT ["/mirror.sh"]

LICENSE

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+MIT License
+
+Copyright (c) 2019 PIXTA Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# README
+
+A GitHub Action for mirroring a repository to another repository on GitHub, GitLab, BitBucket, AWS CodeCommit, etc.
+
+This will copy all commits, branches and tags.
+
+>⚠️ Note that the other settings will not be copied. Please check which branch is 'default branch' after the first mirroring.
+
+## Usage
+
+Customize following example workflow and save as .github/workflows/main.yml on your source repository.
+
+cf. [Creating and using secrets](https://help.github.com/en/articles/virtual-environments-for-github-actions#creating-and-using-secrets-encrypted-variables) .
+
+```yaml
+name: Mirroring
+
+on: [push, delete]
+
+jobs:
+  to_gitlab:
+    runs-on: ubuntu-18.04
+    steps:                                              # <-- must use actions/checkout@v1 before mirroring!
+    - uses: actions/checkout@v1
+    - uses: pixta-dev/repository-mirroring-action@v1
+      with:
+        target_repo_url:
+          [email protected]:<username>/<target_repository_name>.git
+        ssh_private_key:                                # <-- use 'secrets' to pass credential information.
+          ${{ secrets.GITLAB_SSH_PRIVATE_KEY }}
+
+  to_codecommit:                                        # <-- different jobs are executed in parallel.
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@v1
+    - uses: pixta-dev/repository-mirroring-action@v1
+      with:
+        target_repo_url:
+          ssh://git-codecommit.<somewhere>.amazonaws.com/v1/repos/<target_repository_name>
+        ssh_private_key:
+          ${{ secrets.CODECOMMIT_SSH_PRIVATE_KEY }}
+        ssh_username:                                   # <-- (for codecommit) you need to specify ssh-key-id as ssh username.
+          ${{ secrets.CODECOMMIT_SSH_PRIVATE_KEY_ID }}
+```

action.yml

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+name: "Mirroring Repository"
+description: "Mirror a repository to another repository on GitHub, GitLab, BitBucket, AWS CodeCommit, etc."
+branding:
+  icon: "archive"
+  color: "blue"
+inputs:
+  ssh_private_key:
+    description: "SSH private key for ssh connection to the target repository"
+    required: false
+  target_repo_url:
+    description: "Target url"
+    required: true
+  ssh_username:
+    description: "Username for ssh connection"
+    required: false
+    default: "git"
+runs:
+  using: 'docker'
+  image: 'Dockerfile'

mirror.sh

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+#!/usr/bin/env sh
+set -eu
+
+/setup-ssh.sh
+
+export GIT_SSH_COMMAND="ssh -v -i ~/.ssh/id_rsa -o StrictHostKeyChecking=no -l $INPUT_SSH_USERNAME"
+git remote add mirror "$INPUT_TARGET_REPO_URL"
+git push --tags --force --prune mirror "refs/remotes/origin/*:refs/heads/*"

setup-ssh.sh

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+#!/usr/bin/env sh
+set -eu
+
+mkdir ~/.ssh
+echo "$INPUT_SSH_PRIVATE_KEY" > ~/.ssh/id_rsa
+chmod 600 ~/.ssh/id_rsa