Implement builders to build Go from source code

.gitmodules

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+[submodule "helpers"]
+	path = helpers
+	url = https://github.com/actions/versions-package-tools
+	branch = master

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to make participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+  advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, and it also applies when
+an individual is representing the project or its community in public spaces.
+Examples of representing a project or community include using an official
+project e-mail address, posting via an official social media account, or acting
+as an appointed representative at an online or offline event. Representation of
+a project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at opensource@github.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

CONTRIBUTING.md

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+## Contributing
+
+[fork]: https://github.com/actions/go-versions/fork  
+[pr]: https://github.com/actions/go-versions/compare  
+[code-of-conduct]: CODE_OF_CONDUCT.md  
+
+Hi there! We're thrilled that you'd like to contribute to this project. Your help is essential for keeping it great.
+
+Contributions to this project are [released](https://help.github.com/articles/github-terms-of-service/#6-contributions-under-repository-license) to the public under the [MIT](LICENSE.md).
+
+Please note that this project is released with a [Contributor Code of Conduct][code-of-conduct]. By participating in this project you agree to abide by its terms.
+
+## Submitting a pull request
+
+1. [Fork][fork] and clone the repository
+1. Create a new branch: `git checkout -b my-branch-name`
+1. Make your changes
+1. Push to your fork and [submit a pull request][pr]
+1. Make sure that checks in your pull request are green
+
+Here are a few things you can do that will increase the likelihood of your pull request being accepted:
+
+- Please include a summary of the change and which issue is fixed. Also include relevant motivation and context.
+- Follow the style guide for [PowerShell](https://github.com/PoshCode/PowerShellPracticeAndStyle).
+- Write [good commit messages](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
+
+## Code structure
+
+### Directory structure
+```
+
+├── azure-pipelines/
+|   └──templates/
+├── builders/
+├── helpers/
+├── installers/
+└── tests/
+    └──sources/
+```
+- `azure-pipelines*` - contains global YAML definitions for build pipelines. Reusable templates for specific jobs are located in `templates` subfolder.
+- `builders` - contains Go builder classes and functions.
+- `helpers` - contains global helper functions and functions.
+- `installers` - contains installation script templates.
+- `tests` - contains test scripts. Required tests sources are located in `sources` subfolder.
+
+\* _We use Azure Pipelines because there are a few features that Actions is still missing, we'll move to Actions as soon as possible_.
+
+## Resources
+
+- [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)
+- [Using Pull Requests](https://help.github.com/articles/about-pull-requests/)
+- [GitHub Help](https://help.github.com)

LICENSE

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+MIT License
+
+Copyright (c) 2020 GitHub
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Go for Actions
+This repository contains the code and scripts that we use to prepare Go packages used in [virtual-environments](https://github.com/actions/virtual-environments) and accessible through the [setup-go](https://github.com/actions/setup-go) Action.  
+The file [versions-manifest.json](./versions-manifest.json) contains the list of available and released versions.  
+
+> Caution: this is prepared for and only permitted for use by actions `virtual-environments` and `setup-go` action.
+
+**Status**: Currently under development and in use for beta and preview actions.  This repo is undergoing rapid changes.
+
+Latest of LTS versions will be installed on the [virtual-environments](https://github.com/actions/virtual-environments) images.  Other versions will be pulled JIT using the [`setup-go`](https://github.com/actions/setup-go) action.
+
+## Adding new versions
+We are trying to prepare packages for new versions of Go as soon as they are released. Please open an issue if any versions are missing.
+
+## Contribution
+Contributions are welcome! See [Contributor's Guide](./CONTRIBUTING.md) for more details about contribution process and code structure

SECURITY.md

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+If you discover a security issue in this repo, please submit it through the [GitHub Security Bug Bounty](https://hackerone.com/github)
+
+Thanks for helping make GitHub Actions safe for everyone.

azure-pipelines/build-go-packages.yml

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+name: $(date:yyyyMMdd)$(rev:.r)-Go-$(VERSION)
+trigger: none
+pr:
+  autoCancel: true
+  branches:
+    include:
+    - master
+  paths:
+    exclude:
+    - versions-manifest.json
+
+stages:
+- stage: Build_Go_Darwin
+  dependsOn: []
+  variables:
+    Platform: darwin
+    Architecture: x64
+  jobs:
+  - template: /azure-pipelines/templates/build-job.yml
+
+- stage: Test_Go_Darwin
+  condition: succeeded()
+  dependsOn: Build_Go_Darwin
+  variables:
+    VmImage: macOS-latest
+    Platform: darwin
+    Architecture: x64
+  jobs:
+  - template: /azure-pipelines/templates/test-job.yml
+
+- stage: Build_Go_Linux
+  dependsOn: []
+  variables:
+    Platform: linux
+    Architecture: x64
+  jobs:
+  - template: /azure-pipelines/templates/build-job.yml
+
+- stage: Test_Go_Linux
+  condition: succeeded()
+  dependsOn: Build_Go_Linux
+  variables:
+    VmImage: ubuntu-latest
+    Platform: linux
+    Architecture: x64
+  jobs:
+  - template: /azure-pipelines/templates/test-job.yml
+
+- stage: Build_Go_Windows
+  dependsOn: []
+  variables:
+    Platform: win32
+    Architecture: x64
+  jobs:
+  - template: /azure-pipelines/templates/build-job.yml
+
+- stage: Test_Go_Windows
+  condition: succeeded()
+  dependsOn: Build_Go_Windows
+  variables:
+    VmImage: windows-latest
+    Platform: win32
+    Architecture: x64
+  jobs:
+  - template: /azure-pipelines/templates/test-job.yml

azure-pipelines/templates/build-job.yml

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+jobs:
+- job: Build_Go
+  timeoutInMinutes: 90
+  pool:
+    name: Azure Pipelines
+    vmImage: ubuntu-latest
+  steps:
+  - checkout: self
+
+  - task: PowerShell@2
+    displayName: 'Build Go $(Version)'
+    inputs:
+      targetType: filePath
+      filePath: './builders/build-go.ps1'
+      arguments: '-Version $(Version) -Platform $(Platform) -Architecture $(Architecture)'
+
+  - task: PublishPipelineArtifact@1
+    displayName: 'Publish Artifact: Go $(Version)'
+    inputs:
+      targetPath: '$(Build.ArtifactStagingDirectory)' 
+      artifactName: 'go-$(Version)-$(Platform)-$(Architecture)'

azure-pipelines/templates/test-job.yml

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+jobs:
+- job: Test_Go
+  pool: 
+    name: Azure Pipelines
+    vmImage: $(VmImage)
+  steps:
+  - checkout: self
+    submodules: true
+
+  - task: PowerShell@2
+    displayName: Fully cleanup the toolcache directory before testing
+    inputs:
+      targetType: filePath
+      filePath: helpers/clean-toolcache.ps1
+      arguments: -ToolName "go"
+
+  - task: DownloadPipelineArtifact@2
+    inputs:
+      source: 'current'
+      artifact: 'go-$(Version)-$(Platform)-$(Architecture)'
+      path: $(Build.ArtifactStagingDirectory)
+
+  - task: ExtractFiles@1
+    inputs:
+      archiveFilePatterns: '$(Build.ArtifactStagingDirectory)/go-$(Version)-$(Platform)-$(Architecture).*'
+      destinationFolder: $(Build.BinariesDirectory)
+      cleanDestinationFolder: false
+
+  - task: PowerShell@2
+    displayName: 'Apply build artifact to the local machines'
+    inputs:
+      targetType: inline
+      script: |
+        if ("$(Platform)" -match 'win32') { powershell ./setup.ps1 } else { sh ./setup.sh }
+      workingDirectory: '$(Build.BinariesDirectory)'
+
+  - task: GoTool@0
+    inputs:
+      version: '$(Version)'
+
+  - task: PowerShell@2
+    displayName: 'Wait for the logs'
+    inputs:
+      targetType: inline
+      script: |
+         Write-Host "Fake step that do nothing"
+         Write-Host "We need it because log of previous step 'Use Go' is not available here yet."
+         Write-Host "In testing step (Go.Tests.ps1) we analyze build log of 'GoTool' task"
+         Write-Host "to determine if Go version was consumed from cache and was downloaded"
+
+  - task: PowerShell@2
+    displayName: 'Run tests'
+    inputs:
+      TargetType: inline
+      script: |
+        Install-Module Pester -Force -Scope CurrentUser -RequiredVersion 4.10.1
+        Import-Module Pester
+        $pesterParams = @{
+          Path="./Go.Tests.ps1";
+          Parameters=@{
+            Version="$(Version)";
+          }
+        }
+        Invoke-Pester -Script $pesterParams -OutputFile "$(Build.SourcesDirectory)/tests/test_results.xml" -OutputFormat NUnitXml
+      workingDirectory: '$(Build.SourcesDirectory)/tests'
+
+  - task: PublishTestResults@2
+    displayName: 'Publish test results'
+    inputs:
+      testResultsFiles: '*.xml'
+      testResultsFormat: NUnit
+      searchFolder: 'tests'
+      failTaskOnFailedTests: true
+      testRunTitle: "Go $(Version)-$(Platform)"
+    condition: always()