Functions/New-WhiskeyContext.ps1
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function New-WhiskeyContext { <# .SYNOPSIS Creates a context object to use when running builds. .DESCRIPTION The `New-WhiskeyContext` function creates a context object used when running builds. It gets passed to each build task. The YAML file at `ConfigurationPath` is parsed. If it has a `Version` property, it is converted to a semantic version, a classic version, and a NuGet verson (a semantic version without any build metadata). An object is then returned with the following properties: * `ConfigurationPath`: the absolute path to the YAML file passed via the `ConfigurationPath` parameter * `BuildRoot`: the absolute path to the directory the YAML configuration file is in. * `OutputDirectory`: the path to a directory where build output, reports, etc. should be saved. This directory is created for you. * `Version`: a `SemVersion.SemanticVersion` object representing the semantic version to use when building the application. This object has two extended properties: `Version`, a `Version` object that represents the semantic version with all pre-release and build metadata stripped off; and `ReleaseVersion` a `SemVersion.SemanticVersion` object with all build metadata stripped off. * `ReleaseVersion`: the semantic version with all build metadata stripped away, i.e. the version and pre-release only. * `Configuration`: the parsed YAML as a hashtable. * `DownloadRoot`: the path to a directory where tools can be downloaded when needed. * `ByBuildServer`: a flag indicating if the build is being run by a build server. * `ByDeveloper`: a flag indicating if the build is being run by a developer. * `ApplicatoinName`: the name of the application being built. .EXAMPLE New-WhiskeyContext -Path '.\whiskey.yml' Demonstrates how to create a context for a developer build. #> [CmdletBinding()] param( [Parameter(Mandatory=$true)] [string] # The environment you're building in. $Environment, [Parameter(Mandatory=$true)] [string] # The path to the `whiskey.yml` file that defines build settings and tasks. $ConfigurationPath, [string] # The place where downloaded tools should be cached. The default is the build root. $DownloadRoot ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState $ConfigurationPath = Resolve-Path -LiteralPath $ConfigurationPath -ErrorAction Ignore if( -not $ConfigurationPath ) { throw ('Configuration file path ''{0}'' does not exist.' -f $PSBoundParameters['ConfigurationPath']) } $config = Import-WhiskeyYaml -Path $ConfigurationPath $buildRoot = $ConfigurationPath | Split-Path if( -not $DownloadRoot ) { $DownloadRoot = $buildRoot } $bitbucketConnection = $null $buildMetadata = Get-WhiskeyBuildMetadata $publish = $false $byBuildServer = $buildMetadata.IsBuildServer $prereleaseInfo = '' if( $byBuildServer ) { $branch = $buildMetadata.ScmBranch if( $config.ContainsKey( 'PublishOn' ) ) { Write-Verbose -Message ('PublishOn') foreach( $publishWildcard in $config['PublishOn'] ) { $publish = $branch -like $publishWildcard if( $publish ) { Write-Verbose -Message (' {0} -like {1}' -f $branch,$publishWildcard) break } else { Write-Verbose -Message (' {0} -notlike {1}' -f $branch,$publishWildcard) } } } if( $config['PrereleaseMap'] ) { $idx = 0 Write-Verbose -Message ('PrereleaseMap') foreach( $item in $config['PrereleaseMap'] ) { if( -not ($item | Get-Member -Name 'Count') -or -not ($item | Get-Member 'Keys') -or $item.Count -ne 1 ) { throw ('{0}: Prerelease[{1}]: The `PrereleaseMap` property must be a list of objects. Each object must have one property. That property should be a wildcard. The property''s value should be the prerelease identifier to add to the version number on branches that match the wildcard. For example, PrereleaseMap: - "alpha/*": "alpha" - "release/*": "rc" ' -f $ConfigurationPath,$idx) } $wildcard = $item.Keys | Select-Object -First 1 if( $branch -like $wildcard ) { Write-Verbose -Message (' {0} -like {1}' -f $branch,$wildcard) $prereleaseInfo = '{0}.{1}' -f $item[$wildcard],$buildMetadata.BuildNumber } else { Write-Verbose -Message (' {0} -notlike {1}' -f $branch,$wildcard) } $idx++ } } } $outputDirectory = Join-Path -Path $buildRoot -ChildPath '.output' if( -not (Test-Path -Path $outputDirectory -PathType Container) ) { New-Item -Path $outputDirectory -ItemType 'Directory' -Force | Out-Null } $context = New-WhiskeyContextObject $context.Environment = $Environment $context.BuildRoot = $buildRoot $context.ConfigurationPath = $ConfigurationPath $context.OutputDirectory = $outputDirectory $context.Configuration = $config $context.DownloadRoot = $DownloadRoot $context.ByBuildServer = $byBuildServer $context.ByDeveloper = (-not $byBuildServer) $context.Publish = $publish $context.RunMode = 'Build' $context.BuildMetadata = $buildMetadata if( $config['Variable'] ) { Write-Error -Message ('{0}: The ''Variable'' property is no longer supported. Use the `SetVariable` task instead. Move your `Variable` property (and values) into your `BuildTasks` pipeline as the first task. Rename `Variable` to `SetVariable`.' -f $ConfigurationPath) -ErrorAction Stop } $versionParam = @{} if( $config.ContainsKey( 'VersionFrom' ) ) { $versionParam['Path'] = $config['VersionFrom'] } else { $versionParam['Version'] = $config['Version'] | Resolve-WhiskeyVariable -Context $context } $semVersion = New-WhiskeySemanticVersion @versionParam -Prerelease $prereleaseInfo -BuildMetadata $buildMetadata -ErrorAction Stop if( -not $semVersion ) { Write-Error ('Unable to create the semantic version for the current build. Is ''{0}'' a valid semantic version? If not, please update the Version property in ''{1}'' to be a valid semantic version.' -f $config['Version'], $ConfigurationPath) -ErrorAction Stop } $context.Version = New-WhiskeyVersionObject -SemVer $semVersion return $context } |