From 7fb648969c57230e14b0afa5c4b1124ee3fc0ca9 Mon Sep 17 00:00:00 2001
From: Katie Gengler <katie@kmg.io>
Date: Wed, 22 Feb 2023 16:21:35 -0500
Subject: [PATCH] An action to push a npm package contents to a branch

---
 README.md  | 46 ++++++++++++++++++++++++++++++++++++-
 action.yml | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 112 insertions(+), 1 deletion(-)
 create mode 100644 action.yml

diff --git a/README.md b/README.md
index 2e0309c..625a194 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,46 @@
 # put-built-npm-package-contents-on-branch
-An action to build an npm package and push it's contents to a branch
+
+An action to build an npm package and push its contents to a branch.
+
+**Note:** This action assumes there is only one tarball in the working-directory
+after the `pack` command. It will not work as expected with any others in the 
+directory.
+
+## Inputs
+
+### `token` (required)
+
+**Description:** A GitHub token with write access to the repository contents. 
+Either a personal access token or `${{ secrets.GITHUB_TOKEN }}` if write access 
+for that default token has been enabled in the repository settings.
+
+### `working-directory` (default: `'./'`)
+
+**Description:** The directory to run the pack command in. Should be the directory
+that contains the package you want to publish to the branch.
+
+### `pack-command` (default: `npm pack`)
+
+**Description:** The command to generate the package tarball.
+
+### `branch` (default: `dist`)
+
+**Description:** The branch to push the package contents to.
+
+### `tmp-dir` (default: `./tmp/dist-action`)
+
+**Description:** Empty directory where the package tarball will be extracted. 
+This directory will be created if it does not exist. It will be deleted after
+the action is complete.
+
+### `commit-message` (default: `"Publish dist for ${{ github.sha }}"`)
+
+**Description:** The commit message to use when pushing the built package to the branch.
+
+### `commit-author` (default: `github-actions[bot]`)
+
+**Description:** The author to use when pushing the built package to the branch.
+
+### `commit-email` (default: `github-actions[bot]@users.noreply.github.com`)
+
+**Description:** The email to use when pushing the built package to the branch.
diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..8d367c0
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,67 @@
+name: Publish Built package to a branch
+description: Build each commit and publish to a branch
+author: Katie Gengler
+inputs:
+  token:
+    description: 'A GitHub token with write access to the repository contents'
+    required: true
+  working-directory:
+    description: 'Directory in which to run the pack command'
+    required: false
+    default: './'
+  pack-command:
+    description: 'Command to generate the package tarball'
+    required: false
+    default: 'npm pack'
+  branch:
+    description: 'Branch name to push the contents to'
+    required: false
+    default: 'dist'
+  tmp-dir:
+    description: 'Empty directory in which to unpack the package tarball; will be created if it does not exist'
+    required: false
+    default: './tmp/dist-action'
+  commit-message:
+    description: 'Commit message to use when pushing to the branch'
+    required: false
+    default: 'Publish dist for ${{ github.sha }}'
+  commit-user:
+    description: 'Name of the user to use when committing to the branch'
+    required: false
+    default: 'github-actions[bot]'
+  commit-email:
+    description: 'Email of the user to use when committing to the branch'
+    required: false
+    default: 'github-actions[bot]@users.noreply.github.com'
+
+runs:
+  using: "composite"
+  steps:
+    - name: 'Pack'
+      shell: 'bash'
+      run: ${{ inputs.pack-command }}
+      working-directory: ${{ inputs.working-directory }}
+    - name: 'Make tmpdir'
+      shell: 'bash'
+      run: mkdir -p ${{ inputs.tmp-dir }}
+      working-directory: ${{ inputs.working-directory }}
+    - name: 'Unpack'
+      shell: 'bash'
+      run: tar -xvzf *.tgz -C ${{ inputs.tmp-dir }}
+      working-directory: ${{ inputs.working-directory }}
+    - name: 'Upload published package contents to branch'
+      shell: 'bash'
+      run: |
+        cd tmp/dist-action/package
+        git config --global init.defaultBranch main
+        git init
+        git config user.name ${{ inputs.commit-user }}
+        git config user.email ${{ inputs.commit-email }}
+        git add .
+        git commit -m ${{ inputs.commit-message }}
+        git push --force "https://${{ github.actor }}:${{ inputs.token }}@github.com/${{ github.repository }}" main:${{ inputs.branch }}
+      working-directory: ${{ inputs.working-directory }}
+    - name: 'Cleanup'
+      shell: 'bash'
+      run: rm -rf ${{ inputs.tmp-dir }}
+      working-directory: ${{ inputs.working-directory }}