Public/Get-BuildVariables.ps1
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function Get-BuildVariables { <# .SYNOPSIS Normalize build system variables .FUNCTIONALITY CI/CD .DESCRIPTION Normalize build system variables Each build system exposes common variables it's own unique way, if at all. This function was written to enable more portable builds, and to avoid tightly coupling your build scripts with your build system Gathers from: AppVeyor GitLab CI Jenkins Teamcity VTFS For Teamcity the VCS Checkout Mode needs to be to checkout files on agent. Since TeamCity 10.0, this is the default setting for the newly created build configurations. Git needs to be available on the agent for this. Produces: BuildSystem: Build system we're running under ProjectPath: Project root for cloned repo BranchName: git branch for this build CommitMessage: git commit message for this build BuildNumber: Build number provided by the CI system .PARAMETER Path Path to project root. Defaults to the current working path .NOTES We assume you are in the project root, for several of the fallback options .EXAMPLE Get-BuildVariables .LINK https://github.com/RamblingCookieMonster/BuildHelpers .LINK Get-ProjectName .LINK Set-BuildEnvironment .LINK about_BuildHelpers #> [cmdletbinding()] param( $Path = $PWD.Path ) $Environment = Get-Item ENV: $IsGitRepo = Test-Path $( Join-Path $Path .git ) $tcProperties = Get-TeamCityProperties # Teamcity has limited ENV: values but dumps the build configuration in a properties file. # Determine the build system: $BuildSystem = switch ($Environment.Name) { 'APPVEYOR_BUILD_FOLDER' { 'AppVeyor'; break } 'GITLAB_CI' { 'GitLab CI' ; break } 'JENKINS_URL' { 'Jenkins'; break } 'BUILD_REPOSITORY_URI' { 'VSTS'; break } 'TEAMCITY_VERSION' { 'Teamcity' ; break } } if(-not $BuildSystem) { $BuildSystem = 'Unknown' } # Find the build folder based on build system $BuildRoot = switch ($Environment.Name) { 'APPVEYOR_BUILD_FOLDER' { (Get-Item -Path "ENV:$_").Value; break } # AppVeyor 'CI_PROJECT_DIR' { (Get-Item -Path "ENV:$_").Value; break } # GitLab CI 'WORKSPACE' { (Get-Item -Path "ENV:$_").Value; break } # Jenkins Jenkins... seems generic. 'BUILD_REPOSITORY_LOCALPATH' { (Get-Item -Path "ENV:$_").Value; break } # VSTS (Visual studio team services) } if(-not $BuildRoot) { if ($BuildSystem -eq 'Teamcity') { $BuildRoot = $tcProperties['teamcity.build.checkoutDir'] } else { # Assumption: this function is defined in a file at the root of the build folder $BuildRoot = $Path } } # Find the git branch $BuildBranch = switch ($Environment.Name) { 'APPVEYOR_REPO_BRANCH' { (Get-Item -Path "ENV:$_").Value; break } # AppVeyor 'CI_BUILD_REF_NAME' { (Get-Item -Path "ENV:$_").Value; break } # GitLab CI 'GIT_BRANCH' { (Get-Item -Path "ENV:$_").Value; break } # Jenkins 'BUILD_SOURCEBRANCHNAME' { (Get-Item -Path "ENV:$_").Value; break } # VSTS } if(-not $BuildBranch) { if($IsGitRepo) { # Using older than 1.6.3 in your build system? Yuck # Thanks to earl: http://stackoverflow.com/a/1418022/3067642 $BuildBranch = git rev-parse --abbrev-ref HEAD } } # Find the git commit message $CommitMessage = switch ($Environment.Name) { 'APPVEYOR_REPO_COMMIT_MESSAGE' { "$env:APPVEYOR_REPO_COMMIT_MESSAGE $env:APPVEYOR_REPO_COMMIT_MESSAGE_EXTENDED" break } 'CI_BUILD_REF' { if($IsGitRepo) { git log --format=%B -n 1 $( (Get-Item -Path "ENV:$_").Value ) break } # Gitlab - thanks to mipadi http://stackoverflow.com/a/3357357/3067642 } 'GIT_COMMIT' { if($IsGitRepo) { git log --format=%B -n 1 $( (Get-Item -Path "ENV:$_").Value ) break } # Jenkins - thanks to mipadi http://stackoverflow.com/a/3357357/3067642 } 'BUILD_SOURCEVERSION' { if($IsGitRepo) { git log --format=%B -n 1 $( (Get-Item -Path "ENV:$_").Value ) break } # VSTS (https://www.visualstudio.com/en-us/docs/build/define/variables#) } 'BUILD_VCS_NUMBER' { if($IsGitRepo) { git log --format=%B -n 1 $( (Get-Item -Path "ENV:$_").Value ) break } # Teamcity https://confluence.jetbrains.com/display/TCD10/Predefined+Build+Parameters } } if(-not $CommitMessage) { if($IsGitRepo) { $CommitMessage = git log --format=%B -n 1 } } # Build number $BuildNumber = switch ($Environment.Name) { 'APPVEYOR_BUILD_NUMBER' { (Get-Item -Path "ENV:$_").Value; break } # AppVeyor 'CI_BUILD_ID ' { (Get-Item -Path "ENV:$_").Value; break } # GitLab CI - not perfect https://gitlab.com/gitlab-org/gitlab-ce/issues/3691 'BUILD_NUMBER' { (Get-Item -Path "ENV:$_").Value; break } # Jenkins, Teamcity ... seems generic. 'BUILD_BUILDNUMBER' { (Get-Item -Path "ENV:$_").Value; break } # VSTS } if(-not $BuildNumber) { $BuildNumber = 0 } [pscustomobject]@{ BuildSystem = $BuildSystem ProjectPath = $BuildRoot BranchName = $BuildBranch CommitMessage = $CommitMessage BuildNumber = $BuildNumber } } |