Only use semantic versioning when packaging NuGet

.nuget/pack.ps1

@@ -1,12 +1,24 @@
+param(
+    [string] $versionSuffix
+)
+
 $root = (split-path -parent $MyInvocation.MyCommand.Definition) + '\..'
 $version = [System.Reflection.Assembly]::LoadFile("$root\src\IF.Lastfm.Core\bin\Release\IF.Lastfm.Core.dll").GetName().Version
-$versionStr = $version.ToString()
+
+if ($versionSuffix)
+{
+    $versionStr = "{0}.{1}.{2}-{3}" -f ($version.Major, $version.Minor, $version.Build, $versionSuffix)
+}
+else
+{
+    $versionStr = $version.ToString()
+}
 
 Write-Host "Setting .nuspec version tag to $versionStr"
 
 $content = (Get-Content $root\.nuget\IF.Lastfm.nuspec) 
 $content = $content -replace '\$version',$versionStr
 
-$content | Out-File $root\.nuget\IF.Lastfm.compiled.nuspec
+$content | Out-File $root\.nuget\IF.Lastfm.$versionStr.compiled.nuspec
 
-& $root\.nuget\NuGet.exe pack $root\.nuget\IF.Lastfm.compiled.nuspec
+& $root\.nuget\NuGet.exe pack $root\.nuget\IF.Lastfm.$versionStr.compiled.nuspec

appveyor.yml

@@ -3,7 +3,7 @@
     only:
       - master
 
-  version: 0.2.0.{build}-prerelease
+  version: 0.2.0.{build}
 
   assembly_info:
     patch: true
@@ -21,12 +21,12 @@
     project: IF.Lastfm.sln
 
   after_test:
-    - ps: .nuget\pack.ps1
+    - ps: .nuget\pack.ps1 -versionSuffix prerelease
 
   artifacts:
     - path: src\IF.Lastfm.Core\bin\Release\IF.Lastfm.Core.dll
       name: IF.Lastfm.Core.dll
-    - path: '**\*.nupkg'
+    - path: '**\*-prerelease.nupkg'
 
   nuget:
     project_feed: true
@@ -36,6 +36,7 @@
     only:
       - release
 
+  # don't forget to update this!
   version: 0.1.2.{build}
 
   assembly_info: