ci: add action to release daily

Author: woile

.github/workflows/publish-container.yml

@@ -0,0 +1,54 @@
+name: Publish Docker image
+
+on:
+  schedule:
+    # At the end of every day
+    - cron: '0 0 * * *'
+  workflow_dispatch:
+    # inputs:
+    #   run:
+    #       description: 'Dummy button'
+    #       required: false
+    #       default: true
+    #       type: boolean
+
+jobs:
+  push_to_registry:
+    name: Push Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v2
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v2
+        with:
+          python-version: '3.10'
+      - name: Install dependencies
+        run: |
+          python -m pip install -U pip
+          sudo apt-get install wget grep
+      - name: Compare version from pip and docker and set version
+        id: getversion
+        run: |
+          ./scripts/auto_publish/compare-versions
+      - name: VERSION found
+        if: "${{ steps.getversion.outputs.version != '' }}"
+        run: echo ${{ steps.getversion.outputs.version }}
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        if: "${{ steps.getversion.outputs.version != '' }}"
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v2
+        if: "${{ steps.getversion.outputs.version != '' }}"
+        with:
+          context: .
+          push: true
+          build-args: |
+            CZ_VERSION=${{ steps.getversion.outputs.version }}
+          tags: |
+            commitizen/commitizen:2
+            commitizen/commitizen:latest
+            commitizen/commitizen:${{ steps.getversion.outputs.version }}

.gitignore

@@ -127,3 +127,4 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+VERSION

Dockerfile

@@ -4,7 +4,9 @@ WORKDIR /app
 
 # Add dependencies
 RUN apk add --update -t --no-cache git curl alpine-sdk
+RUN ["pip", "install", "-U", "--no-cache-dir", "pip"]
 
-RUN ["pip", "install", "--no-cache-dir", "commitizen>=2,<3"]
+ARG CZ_VERSION=2.28.0
+RUN pip install --no-cache-dir commitizen==$CZ_VERSION
 
 CMD [ "cz", "version" ]

README.md

@@ -8,12 +8,16 @@
 
 ## Docker images
 
-We publish only major versions starting with `v2`.
+We publish major versions starting with `v2` + latest exact v2.
+
+| Tag                            | Description                                                     |
+| ------------------------------ | --------------------------------------------------------------- |
+| `commitizen/commitizen:latest` | Latest major version, at the moment v2                          |
+| `commitizen/commitizen:2`      | Points to latest v2                                             |
+| `commitizen/commitizen:2.x`    | See [tags](https://hub.docker.com/r/commitizen/commitizen/tags) |
+
+This repo checks daily for the latest version and tries to publish it.
 
-| Tag                            | Description                            |
-| ------------------------------ | -------------------------------------- |
-| `commitizen/commitizen:latest` | Latest major version, at the moment v2 |
-| `commitizen/commitizen:2`      | Points to latest v2                    |
 
 ## Usage
 

scripts/auto_publish/compare-versions

@@ -0,0 +1,31 @@
+#!/bin/sh -e
+# This script retrieves latest version from pip
+# and all versions in docker hub for commitizen.
+# If the version EXISTS then exit with error and stop pipeline
+
+# requires pip
+pip_latest_version() {
+    python -m pip index versions commitizen | grep commitizen | grep -o -P '[0-9]+\.[0-9]+\.[0-9]+'
+}
+
+# requires wget, sed, gnu awk
+list_cz_docker_versions() {
+    image=commitizen/commitizen
+    wget -q "https://registry.hub.docker.com/v1/repositories/${image}/tags" -O -  | sed -e 's/[][]//g' -e 's/"//g' -e 's/ //g' | tr '}' '\n'  | awk -F: '{print $3}'
+}
+
+PIP_LATEST=$(pip_latest_version)
+echo "latest pip version found '$PIP_LATEST'"
+
+tags=$(list_cz_docker_versions)
+
+if echo "${tags}" | grep -q "$PIP_LATEST"; then
+    echo "Version already present, skipping other steps..."
+else
+    echo "Version not found... continue"
+    echo 'Creating file: `VERSION`'
+    echo "$PIP_LATEST" > VERSION
+    echo "Setting variable 'version'"
+    echo "::set-output name=version::$PIP_LATEST"
+fi
+

scripts/build

@@ -1,3 +1,11 @@
 #!/bin/sh -e
 set -x
-docker build -t registry.hub.docker.com/commitizen/commitizen:2 -t registry.hub.docker.com/commitizen/commitizen:latest .
+EXACT_VERSION="${EXACT_VERSION:-2}"
+
+# Also tag exact question, if not provided we repeat value '2' twice, but
+# it won't create any problem
+docker build \
+    -t registry.hub.docker.com/commitizen/commitizen:2 \
+    -t registry.hub.docker.com/commitizen/commitizen:latest \
+    -t "registry.hub.docker.com/commitizen/commitizen:$EXACT_VERSION" \
+    .

scripts/run

@@ -1,2 +1,2 @@
 #!/bin/sh -ex
-docker run --rm --name commitizen commitizen:2 /bin/sh -c "$@"
+docker run --rm --name commitizen registry.hub.docker.com/commitizen/commitizen:2 /bin/sh -c "$@"