test

.github/workflows/main.yml

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+on: [push]
+
+jobs:
+  hello_world_job:
+    runs-on: ubuntu-latest
+    name: A job to say hello
+    steps:
+    - name: Hello world action step
+      id: hello
+      uses: actions/hello-world-docker-action@v1
+      with:
+        who-to-greet: 'Mona the Octocat'
+    # Use the output from the `hello` step
+    - name: Get the output time
+      run: echo "The time was ${{ steps.hello.outputs.time }}"

.gitignore

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+/node_modules

Dockerfile

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+# Container image that runs your code
+FROM alpine:3.10
+
+# Copies your code file from your action repository to the filesystem path `/` of the container
+COPY entrypoint.sh /entrypoint.sh
+
+# Code file to execute when the docker container starts up (`entrypoint.sh`)
+ENTRYPOINT ["/entrypoint.sh"]

action.yml

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+# action.yml
+name: 'Hello World'
+description: 'Greet someone and record the time'
+inputs:
+  who-to-greet:  # id of input
+    description: 'Who to greet'
+    required: true
+    default: 'World'
+outputs:
+  time: # id of output
+    description: 'The time we greeted you'
+runs:
+  using: 'docker'
+  image: 'Dockerfile'
+  args:
+    - ${{ inputs.who-to-greet }}

entrypoint

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+#!/bin/sh -l
+
+echo "Hello $1"
+time=$(date)
+echo "::set-output name=time::$time"