sammcj · April 25, 2023 20:10
diff --git a/github-actions-notes.md b/github-actions-notes.md
diff --git a/github-actions-workflow-demo.py b/github-actions-workflow-demo.py
 import os
 import sys

 version = f"{sys.version_info.major}.{sys.version_info.minor}"
 print(f"Hello World, from Python {version} in an external script!")
 print(f"Did you know that {os.getenv('SPAM_STRING', 'there is a SPAM_STRING')}?")
diff --git a/github-actions-workflow-demo.sh b/github-actions-workflow-demo.sh
 #! /bin/sh

 echo "Hello World, from an external shell script!"
 if [ "$BUILD_ENV" = "demo" ]; then
  echo "This is a demo."
 elif [ "$BUILD_ENV" ]; then
  echo "BUILD_ENV=$BUILD_ENV"
 else
  echo "There isn't a BUILD_ENV variable set."
 fi
 if [ "$SPAM_STRING" ]; then echo "Did you know that $SPAM_STRING?"; fi
diff --git a/github-actions-workflow-demo.yml b/github-actions-workflow-demo.yml
 name: demo

 on:
  push:
    branches: [demo]
  workflow_dispatch:

 env:
  APP_NAME: "GitHub Actions demo workflow"

 jobs:
  simple:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v3
      - name: Verify the workspace context
        run: echo 'Workspace directory is ${{ github.workspace }}'
      - name: Run a simple echo command with a pre-set environment variable
        run: echo 'Hello World, from ${{ env.APP_NAME }}'
      - name: Set an environment variable using a multi-line string
        run: |
          echo "MULTI_LINE_STRING<<EOF" >> $GITHUB_ENV
          echo "
            Hello World!
            Here's a
            multi-line string.
          " >> $GITHUB_ENV
          echo "EOF" >> $GITHUB_ENV
      - name: Check the environment variable from the previous step
        run: echo $MULTI_LINE_STRING
      - name: Set build environment based on Git branch name
        if: github.ref == 'refs/heads/demo' || contains(env.APP_NAME, 'demo')
        run: echo "BUILD_ENV=demo" >> $GITHUB_ENV
      - name: Use the GitHub Actions format function to provide some details about Spam
        run: |
          echo "SPAM_STRING=${{ format(
            'Spam is short for {0} and is made from {1} by {2}',
            'spiced ham',
            'pork shoulder',
            'Hormel'
          ) }}" >> $GITHUB_ENV
      - name: Run a multi-line shell script block
        run: |
          echo "
          Hello World, from ${{ env.APP_NAME }}!
          Add other actions to build,
          test, and deploy your project.
          "
          if [ "$BUILD_ENV" = "demo" ] || ${{ contains(env.APP_NAME, 'demo') }}; then
            echo "This is a demo."
          elif [ "$BUILD_ENV" ]; then
            echo "BUILD_ENV=$BUILD_ENV"
          else
            echo "There isn't a BUILD_ENV variable set."
          fi
          echo "Did you know that $SPAM_STRING?"
      - uses: actions/setup-python@v2
        with:
          python-version: "3.10"
      - name: Run a multi-line Python script block
        shell: python
        run: |
          import os
          import sys

          version = f"{sys.version_info.major}.{sys.version_info.minor}"
          print(f"Hello World, from Python {version} and ${{ env.APP_NAME }}!")
          print(f"Did you know that {os.getenv('SPAM_STRING', 'there is a SPAM_STRING')}?")
      - name: Run an external shell script
        working-directory: ./.github/workflows
        run: . github-actions-workflow-demo.sh
      - name: Run an external Python script
        working-directory: ./.github/workflows
        run: python github-actions-workflow-demo.py
  matrix:
    needs: [simple]
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [macOS-latest, ubuntu-latest, windows-latest]
        python-version: ["3.8", "3.9", "3.10"]
        silly-word: [foo, bar, baz]
    steps:
      - uses: actions/checkout@v2
      - name: Echo a silly word
        run: echo ${{ matrix.silly-word }}
      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}
      - name: Run a multi-line Python script block
        shell: python
        run: |
          import os
          import sys

          version = f"{sys.version_info.major}.{sys.version_info.minor}"
          print(f"Hello World, from Python {version}, ${{ matrix.os }}, and ${{ matrix.silly-word }}!")
diff --git a/images-annotated-workflow.png b/images-annotated-workflow.png
diff --git a/images-features-matrix.png b/images-features-matrix.png
diff --git a/images-features-pricing.png b/images-features-pricing.png
	import os
	import sys

	version = f"{sys.version_info.major}.{sys.version_info.minor}"
	print(f"Hello World, from Python {version} in an external script!")
	print(f"Did you know that {os.getenv('SPAM_STRING', 'there is a SPAM_STRING')}?")
	#! /bin/sh

	echo "Hello World, from an external shell script!"
	if [ "$BUILD_ENV" = "demo" ]; then
	echo "This is a demo."
	elif [ "$BUILD_ENV" ]; then
	echo "BUILD_ENV=$BUILD_ENV"
	else
	echo "There isn't a BUILD_ENV variable set."
	fi
	if [ "$SPAM_STRING" ]; then echo "Did you know that $SPAM_STRING?"; fi
	name: demo

	on:
	push:
	branches: [demo]
	workflow_dispatch:

	env:
	APP_NAME: "GitHub Actions demo workflow"

	jobs:
	simple:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repo
	uses: actions/checkout@v3
	- name: Verify the workspace context
	run: echo 'Workspace directory is ${{ github.workspace }}'
	- name: Run a simple echo command with a pre-set environment variable
	run: echo 'Hello World, from ${{ env.APP_NAME }}'
	- name: Set an environment variable using a multi-line string
	run: \|
	echo "MULTI_LINE_STRING<<EOF" >> $GITHUB_ENV
	echo "
	Hello World!
	Here's a
	multi-line string.
	" >> $GITHUB_ENV
	echo "EOF" >> $GITHUB_ENV
	- name: Check the environment variable from the previous step
	run: echo $MULTI_LINE_STRING
	- name: Set build environment based on Git branch name
	if: github.ref == 'refs/heads/demo' \|\| contains(env.APP_NAME, 'demo')
	run: echo "BUILD_ENV=demo" >> $GITHUB_ENV
	- name: Use the GitHub Actions format function to provide some details about Spam
	run: \|
	echo "SPAM_STRING=${{ format(
	'Spam is short for {0} and is made from {1} by {2}',
	'spiced ham',
	'pork shoulder',
	'Hormel'
	) }}" >> $GITHUB_ENV
	- name: Run a multi-line shell script block
	run: \|
	echo "
	Hello World, from ${{ env.APP_NAME }}!
	Add other actions to build,
	test, and deploy your project.
	"
	if [ "$BUILD_ENV" = "demo" ] \|\| ${{ contains(env.APP_NAME, 'demo') }}; then
	echo "This is a demo."
	elif [ "$BUILD_ENV" ]; then
	echo "BUILD_ENV=$BUILD_ENV"
	else
	echo "There isn't a BUILD_ENV variable set."
	fi
	echo "Did you know that $SPAM_STRING?"
	- uses: actions/setup-python@v2
	with:
	python-version: "3.10"
	- name: Run a multi-line Python script block
	shell: python
	run: \|
	import os
	import sys

	version = f"{sys.version_info.major}.{sys.version_info.minor}"
	print(f"Hello World, from Python {version} and ${{ env.APP_NAME }}!")
	print(f"Did you know that {os.getenv('SPAM_STRING', 'there is a SPAM_STRING')}?")
	- name: Run an external shell script
	working-directory: ./.github/workflows
	run: . github-actions-workflow-demo.sh
	- name: Run an external Python script
	working-directory: ./.github/workflows
	run: python github-actions-workflow-demo.py
	matrix:
	needs: [simple]
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [macOS-latest, ubuntu-latest, windows-latest]
	python-version: ["3.8", "3.9", "3.10"]
	silly-word: [foo, bar, baz]
	steps:
	- uses: actions/checkout@v2
	- name: Echo a silly word
	run: echo ${{ matrix.silly-word }}
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Run a multi-line Python script block
	shell: python
	run: \|
	import os
	import sys

	version = f"{sys.version_info.major}.{sys.version_info.minor}"
	print(f"Hello World, from Python {version}, ${{ matrix.os }}, and ${{ matrix.silly-word }}!")