First attempt to add gh-action (#5)

* first attempt to add gh-action
* adding entrypoint.sh
* need to install bash'

Signed-off-by: vsoch <vsoch@users.noreply.github.com>
Co-authored-by: vsoch <vsoch@users.noreply.github.com>

.github/workflows/main.yml

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+name: CI
+on: [pull_request]
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Actions Repository
+      uses: actions/checkout@v2
+    - name: Test dockerfile uptodate GitHub Action
+      uses: ./
+      with: 
+        root: ./tests
+        parser: dockerfile
+
+    - name: Check output files
+      run: |
+         sudo apt-get install -y tree
+         tree ./tests        
+    - name: Test dockerhierarchy uptodate GitHub Action
+      uses: ./
+      with: 
+        root: ./tests
+        parser: dockerhierarchy
+
+    - name: Check output files again
+      run: |
+         tree ./tests        
+

Dockerfile

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+FROM golang:alpine as builder
+
+ARG version
+LABEL maintainer="@vsoch"
+
+LABEL "com.github.actions.name"="UpToDate Action"
+LABEL "com.github.actions.description"="Check that repository assets are up to date"
+LABEL "com.github.actions.icon"="activity"
+LABEL "com.github.actions.color"="blue"
+
+# Install module dependencies
+WORKDIR /code
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the rest!
+COPY . .
+
+# Install some dependencies
+RUN apk add --no-cache binutils build-base linux-headers
+
+# Build the action
+RUN make
+
+# Multistage build to only copy over the binary
+FROM alpine
+
+RUN apk add --no-cache git bash
+WORKDIR /code
+COPY --from=builder /code/uptodate /code/entrypoint.sh /code/
+ENV PATH /code:$PATH
+ENTRYPOINT ["/bin/bash", "/code/entrypoint.sh"]

action.yml

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+name: "uptodate-action"
+author: "Vanessa Sochat"
+description: "Check that repository assets are up to date"
+
+inputs:
+  root:
+    description: "Root path to provide to command. Can be a Dockerfile or directory."
+    required: false
+    default: ""
+
+  parser:
+    description: "Parser to run, one of dockerfile, or dockerhierarchy"
+    required: true
+
+  dry_run:
+    description: "Do a dry run (don't write, but show changes) one of true or false, defaults to false"
+    required: false
+    default: false
+
+runs:
+  using: "docker"
+  image: "Dockerfile"
+
+branding:
+  icon: "activity"
+  color: "blue"

entrypoint.sh

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+#!/bin/bash
+
+set -e
+
+printf "Found files in workspace:\n"
+ls
+
+printf "Looking for uptodate install...\n"
+which uptodate
+
+COMMAND="uptodate ${INPUT_PARSER} "
+
+# dry run?
+if [ "${INPUT_DRY_RUN}" == "true" ]; then
+    COMMAND="${COMMAND} --dry-run"
+fi
+
+COMMAND="${COMMAND} ${INPUT_ROOT}"
+echo "${COMMAND}"
+
+${COMMAND}
+echo $?

tests/ubuntu/21.04/Dockerfile

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+FROM ubuntu:21.04
+
+LABEL maintainer vsoch
+
+RUN apt-get update && apt-get install -y vim

tests/ubuntu/uptodate.yaml

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+dockerhierarchy:
+  container:
+    name: ubuntu
+    filter: 
+     # we only want XX.04 versions
+     - "^[0-9]+[.]04$"
+    startat: "16.04"
+
+    # Versions to skip (not LTS releases)
+    skips:
+      - "17.04"
+      - "19.04"