Merge pull request #1 from PrefectHQ/first-implementation

Initial implementation of workflow

.github/CODEOWNERS

@@ -0,0 +1 @@
+@prefecthq/platform

.github/workflows/static-analysis.yaml

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+---
+name: Static analysis
+
+"on":
+  pull_request: {}
+
+permissions: {}
+
+jobs:
+  pre_commit_checks:
+    name: pre-commit checks
+    runs-on: ubuntu-latest
+    permissions:
+      # required to read from the repo
+      contents: read
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+
+      - name: Install tool dependencies
+        uses: jdx/mise-action@v2
+
+      - name: Run pre-commit
+        run: |
+          pre-commit run --show-diff-on-failure --color=always --all-files

.mise.toml

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+[tools]
+pre-commit = '3.8.0'
+shellcheck = '0.10.0'
+yamllint = '1.35.1'

.pre-commit-config.yaml

@@ -0,0 +1,24 @@
+---
+fail_fast: false
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.3.0
+    hooks:
+      - id: check-merge-conflict
+      - id: detect-private-key
+      - id: no-commit-to-branch
+      - id: trailing-whitespace
+
+  - repo: https://github.com/adrienverge/yamllint.git
+    rev: v1.28.0
+    hooks:
+      - id: yamllint
+        args:
+          - --strict
+
+  - repo: https://github.com/koalaman/shellcheck-precommit
+    rev: v0.7.2
+    hooks:
+      - id: shellcheck
+        args: ["--severity=error"]

README.md

@@ -1,2 +1,41 @@
 # actions-mise-upgrade
-GitHub workflow to upgrade tools managed by mise
+
+GitHub workflow to upgrade tools managed by [`mise`](https://mise.jdx.dev).
+
+Uses the [`mise upgrade`](https://mise.jdx.dev/cli/upgrade.html) command to
+check for the latest versions of each tool and update the `.mise.toml` with
+the results.
+
+## Inputs
+
+There are currently no inputs to provide to this action.
+
+## Usage
+
+```yaml
+name: Update mise tool versions
+"on":
+  schedule:
+      - cron: 0 15 1 * * # First day of each month at 15:00 UTC
+  workflow_dispatch: {}
+
+permissions: {}
+
+jobs:
+  updatecli:
+    runs-on: ubuntu-latest
+    permissions:
+      # required to write to the repo
+      contents: write
+      # required to open a pr with changes
+      pull-requests: write
+    steps:
+      - name: upgrade mise tools
+        uses: prefecthq/actions-mise-upgrade@main
+```
+
+## References
+
+- https://github.com/jdx/mise/discussions/1823: this issue discusses workflows for plugin updates. Might be worth following along in case there ends up being a more 'official' way to do this.
+- https://github.com/jdx/mise/discussions/4057: this discussion mentions the `mise upgrade --bump` command we're using here, along with some context.
+- https://github.com/jdx/mise/discussions/4241: this discussion suggests adding a changelog to the `self-update` command, which is somewhat related and hopefully will carry over to the `upgrade` command for us to use in pull request descriptions.

action.yaml

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+---
+name: Update mise tool versions
+author: PrefectHQ
+description: This action will upgrade tools managed by mise and open a PR.
+
+inputs: {}
+
+runs:
+  using: composite
+  steps:
+    - name: checkout
+      uses: actions/checkout@v4
+      with:
+        # This should be 'main' anyway as it will run
+        # on a schedule, but let's be explicit so we can,
+        # for example, run this from pull request branches.
+        ref: 'main'
+
+    - name: install mise
+      uses: jdx/mise-action@v2
+
+    - name: upgrade tools in mise
+      run: mise upgrade --bump
+
+    - name: determine if there are changes
+      run: |
+        if [[ $(git diff --name-only | wc -l) -eq 0 ]]; then
+          echo "No changes detected, exiting"
+          echo "CHANGES=false" >> $GITHUB_ENV
+          exit 0
+        else
+          echo "CHANGES=true" >> $GITHUB_ENV
+        fi
+
+    - name: configure git
+      if: env.CHANGES == 'true'
+      run: |
+        git config user.name "$GITHUB_ACTOR"
+        git config user.email "[email protected]"
+
+    - name: determine branch name
+      if: env.CHANGES == 'true'
+      run: |
+        echo "BRANCH_NAME=mise-updates-$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+
+    - name: commit and push changes
+      if: env.CHANGES == 'true'
+      run: |
+        git checkout -b $BRANCH_NAME
+        git add .mise.toml
+        git commit -m 'Update mise tool versions'
+        git push --set-upstream origin $BRANCH_NAME
+
+    - name: create pull request
+      if: env.CHANGES == 'true'
+      run: |
+        gh pr create \
+          --base main \
+          --title "Update mise tool versions" \
+          --label automated-dependency-updates
+      env:
+        # Required for the `gh` CLI
+        GH_TOKEN: ${{ github.token }}