Sets the AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion using build, revision and NuGet publish history.

set-version.ps1

<#
.Synopsis
    Determines the AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion using build, revision and NuGet publish history.
.Parameter baseDir
    The root directory from which to recursively search for AssemblyInfo files
    When called from TeamCity, use: "%teamcity.build.checkoutDir%" or omit.
    Defaults to the parent directory of the script.
.Parameter nugetExe
    The full path to NuGet.exe
    When called from TeamCity, use: "%teamcity.tool.NuGet.CommandLine.DEFAULT.nupkg%\tools\NuGet.exe"
    Defaults to assuming that NuGet.exe can be resolved with the environment PATH variable.
.Parameter packageId
    The NuGet package Id
    Required parameter
.Parameter buildNumber
    The build number (will be included in AssemblyInformationalVersion)
    When called from TeamCity, use: "%build.number%"
    Required parameter
.Parameter vcsRevision
    The version control revision number or commit hash (will be included in AssemblyInformationalVersion)
    When called from TeamCity, use: "%build.vcs.number%"
    Required parameter
.Parameter versionSuffix
    The version suffix of NuGet prerelease packages
    If set, will check NuGet source for pre-release versions and will be included in AssemblyInformationalVersion
.Parameter incrementPosition
    The part of the assembly version to increment (against the last published NuGet package)
    Can be set to: major, minor or patch
    Defaults to "patch"
.Parameter nugetSource
    The url to NuGet source
    Defaults to "https://nuget.org/api/v2"
.Example
    -baseDir "%teamcity.build.checkoutDir%" -nugetExe "C:\tools\NuGet\NuGet.exe" -packageId %PackageId% -buildNumber %build.counter% -vcsRevision %build.vcs.number% -versionSuffix "-%Configuration%" -revisionPrefix C -nugetSource "http://%NugetHost%/api/v2" -versionFile "%teamcity.build.checkoutDir%\VersionAssemblyInfo.cs"
.Link
    http://semver.org
.Link
    http://stackoverflow.com/a/65062/68115
#>
param(
  [string] $baseDir = (Split-Path -Parent -Path $MyInvocation.MyCommand.Definition),
  [string] $nugetExe = "NuGet.exe",

  [Parameter(Mandatory = $true)]
  [string] $packageId,

  [Parameter(Mandatory = $true)]
  [string] $buildNumber,

  [Parameter(Mandatory = $true)]
  [string] $vcsRevision,

  [string] $versionSuffix = $null,
  [string] $incrementPosition = "patch",
  [string] $nugetSource = "https://nuget.org/api/v2",
  [string] $revisionPrefix = "sha.",
  [string] $versionFile = $null,
  [int] $majorDefault = 0,
  [int] $minorDefault = 0,
  [int] $patchDefault = 0
)
Write-Host ("`$versionSuffix: {0}" -f $versionSuffix)
Write-Host ("`$nugetSource: {0}" -f $nugetSource)
 
function Update-AssemblyInfo {
  param(
    [string] $assemblyInfoFile,
    [hashtable] $parameters
  )
  Write-Host ("`$assemblyInfoFile: {0}" -f $assemblyInfoFile)
  foreach ($key in $($parameters.Keys)) {
    if ($parameters[$key] -ne $null) {
      $assemblyInfo = Get-Content $assemblyInfoFile
      $pattern = ('\[assembly: {0}\("(.*)"\)\]' -f $key)
      $oldValue = ($assemblyInfo | Select-String -Pattern $pattern | % { $_.Matches } ).Groups[1].Value
      $match = ('[assembly: {0}("{1}")]' -f $key, $oldValue)
      $replace = ('[assembly: {0}("{1}")]' -f $key, $parameters[$key])
      (($assemblyInfo) | ForEach-Object { % { $_ -Replace [regex]::escape($match), $replace } }) | Set-Content $assemblyInfoFile
      Write-Host ("{0} changed from: '{1}', to: '{2}'." -f $key, $oldValue, $parameters[$key])
    }
  }
}
$nugetArgs = "list", $packageId, "-s", $nugetSource
if ($versionSuffix) { $nugetArgs += "-pre" }
try {
  (& $nugetExe $nugetArgs) | Where { $_.StartsWith(("{0} " -f $packageId)) } | % { $publishedVersion = $_.Split(" ")[1] }
}
catch {
  Write-Error ("Failed to query NuGet source: {0}, for package: {1}." -f $nugetSource, $packageId)
}
if (!$publishedVersion) {
  Write-Host ("Assuming no published version of package id: {0}, on NuGet source: {1}." -f $packageId, $nugetSource)
  $publishedVersion = ("{0}.{1}.{2}" -f $majorDefault, $minorDefault, $patchDefault)
  if ($versionSuffix) {
    $publishedVersion += $versionSuffix
  }
}
if ($versionSuffix) {
    $major, $minor, $patch, $build = $publishedVersion.Split("-")[0].Split(".")
} else {
  $major, $minor, $patch, $build = $publishedVersion.Split(".")
}
Write-Host ("Incrementing {0} position of semver: {1}." -f $incrementPosition, $publishedVersion)
switch ($incrementPosition) {
  "major" { $semanticVersion = ("{0}.{1}.{2}" -f (([int] $major) + 1), $minor, $patch) }
  "minor" { $semanticVersion = ("{0}.{1}.{2}" -f $major, (([int] $minor) + 1), $patch) }
  default { $semanticVersion = ("{0}.{1}.{2}" -f $major, $minor, (([int] $patch) + 1)) }
}
Write-Host ("New semver: [{0}]." -f $semanticVersion)
$assemblyVersion = ("{0}.{1}" -f $semanticVersion, $buildNumber)
$assemblyInformationalVersion = $semanticVersion
if ($versionSuffix) {
  $assemblyInformationalVersion += $versionSuffix
}
$assemblyInformationalVersion += ("+{0}.{1}{2}" -f $buildNumber, $revisionPrefix, $vcsRevision)
$assemblyInfoValues = @{ AssemblyVersion = $assemblyVersion; AssemblyFileVersion = $assemblyVersion; AssemblyInformationalVersion = $assemblyInformationalVersion }
if ($versionFile) {
  Update-AssemblyInfo $versionFile $assemblyInfoValues
}
else {
  $assemblyInfoFiles = (Get-ChildItem -Path $baseDir -Filter "*AssemblyInfo*.cs" -Recurse | Select-Object FullName)
  foreach ($assemblyInfoFile in $assemblyInfoFiles) {
      Update-AssemblyInfo $assemblyInfoFile.FullName $assemblyInfoValues
  }
}
Write-Host ("##teamcity[buildNumber '{0}']" -f $assemblyInformationalVersion)
Write-Host ("##teamcity[setParameter name='SemVer' value='{0}']" -f $semanticVersion)