Tolerate temp file directory not existing when cleaning up

[neoeinstein]

This handles an issue that sometimes happens while building on my build server. In this case, IntermediateOutputPath is not set, and so GitVersionTask falls back to the Temp path. On the build server, this folder does not initially contain a "GitVersionTask" folder. Thus, when reaching TempFileTracker.DeleteTempFiles() the process throws a DirectoryNotFoundException.

[19:11:37][Step 1/1]        UpdateAssemblyInfo:
[19:11:37][Step 1/1]          Version not in cache. Calculating version.
[19:11:37][Step 1/1]          Running against branch: hotfix-0.3.5
[19:11:37][Step 1/1]          Base Versions:
[19:11:37][Step 1/1]          Fallback base version: 0.1.0 from commit ******************************6715ab58c3
[19:11:37][Step 1/1]          NextVersion in GitVersionConfig.yaml: 0.3.5 from commit External Source
[19:11:37][Step 1/1]          Git tag '0.3.4': 0.3.4 from commit ******************************bede1c3ae2
[19:11:37][Step 1/1]          Merge message 'Merge branch 'hotfix-0.3.4'': 0.3.4 from commit ******************************bede1c3ae2
[19:11:37][Step 1/1]          Version in branch name: 0.3.5 from commit ******************************88a41db6e6
[19:11:37][Step 1/1]          Base version used: Version in branch name: 0.3.5 from commit ******************************88a41db6e6
[19:11:37][Step 1/1]          Skipping version increment
[19:11:37][Step 1/1]          Applicable build agent found: 'TeamCity'.
[19:11:37][Step 1/1]          Executing GenerateSetVersionMessage for 'TeamCity'.
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[buildNumber '0.3.5-beta.1']
[19:11:37][Step 1/1]          Executing GenerateBuildLogOutput for 'TeamCity'.
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.Major' value='0']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.Major' value='0']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.Minor' value='3']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.Minor' value='3']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.Patch' value='5']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.Patch' value='5']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.PreReleaseTag' value='beta.1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.PreReleaseTag' value='beta.1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.PreReleaseTagWithDash' value='-beta.1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.PreReleaseTagWithDash' value='-beta.1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.BuildMetaData' value='1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.BuildMetaData' value='1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.FullBuildMetaData' value='1.Branch.hotfix-0.3.5.Sha.******************************affad7254c']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.FullBuildMetaData' value='1.Branch.hotfix-0.3.5.Sha.******************************affad7254c']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.MajorMinorPatch' value='0.3.5']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.MajorMinorPatch' value='0.3.5']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.SemVer' value='0.3.5-beta.1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.SemVer' value='0.3.5-beta.1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.LegacySemVer' value='0.3.5-beta1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.LegacySemVer' value='0.3.5-beta1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.LegacySemVerPadded' value='0.3.5-beta0001']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.LegacySemVerPadded' value='0.3.5-beta0001']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.AssemblySemVer' value='0.3.0.0']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.AssemblySemVer' value='0.3.0.0']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.FullSemVer' value='0.3.5-beta.1+1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.FullSemVer' value='0.3.5-beta.1+1']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.InformationalVersion' value='0.3.5-beta.1+1.Branch.hotfix-0.3.5.Sha.******************************affad7254c']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.InformationalVersion' value='0.3.5-beta.1+1.Branch.hotfix-0.3.5.Sha.******************************affad7254c']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.BranchName' value='hotfix-0.3.5']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.BranchName' value='hotfix-0.3.5']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.Sha' value='******************************affad7254c']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.Sha' value='******************************affad7254c']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.NuGetVersionV2' value='0.3.5-beta0001']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.NuGetVersionV2' value='0.3.5-beta0001']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='GitVersion.NuGetVersion' value='0.3.5-beta0001']
[19:11:37][Step 1/1]          
[19:11:37][Step 1/1] ##teamcity[setParameter name='system.GitVersion.NuGetVersion' value='0.3.5-beta0001']
[19:11:37][Step 1/1]      4>MSBUILD : error : Error occurred: System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\TeamCity\BuildAgent\temp\buildTmp\GitVersionTask'. [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] MSBUILD : error :    at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] MSBUILD : error :    at System.IO.FileSystemEnumerableIterator`1.CommonInit() [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] MSBUILD : error :    at System.IO.FileSystemEnumerableIterator`1..ctor(String path, String originalUserPath, String searchPattern, SearchOption searchOption, SearchResultHandler`1 resultHandler, Boolean checkHost) [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] MSBUILD : error :    at System.IO.Directory.GetFiles(String path) [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] MSBUILD : error :    at TempFileTracker.DeleteTempFiles() in c:\BuildAgent\work\5106452ed7682238\GitVersionTask\TempFileTracker.cs:line 16 [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] MSBUILD : error :    at GitVersionTask.UpdateAssemblyInfo.InnerExecute() in c:\BuildAgent\work\5106452ed7682238\GitVersionTask\AssemblyInfoBuilder\UpdateAssemblyInfo.cs:line 65 [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] MSBUILD : error :    at GitVersionTask.UpdateAssemblyInfo.Execute() in c:\BuildAgent\work\5106452ed7682238\GitVersionTask\AssemblyInfoBuilder\UpdateAssemblyInfo.cs:line 44 [C:\TeamCity\BuildAgent\work\7b27b747153ac0b7\src\***\***.csproj]
[19:11:37][Step 1/1] ##teamcity[buildStatus status='FAILURE' text=': (0,0): Error occurred: System.IO.DirectoryNotFoundException: Could not find a part of the path |'C:\TeamCity\BuildAgent\temp\buildTmp\GitVersionTask|'.   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)   at System.IO.FileSystemEnumerableIterator`1.CommonInit()   at System.IO.FileSystemEnumerableIterator`1..ctor(String path, String originalUserPath, String searchPattern, SearchOption searchOption, SearchResultHandler`1 resultHandler, Boolean checkHost)   at System.IO.Directory.GetFiles(String path)   at TempFileTracker.DeleteTempFiles() in c:\BuildAgent\work\5106452ed7682238\GitVersionTask\TempFileTracker.cs:line 16   at GitVersionTask.UpdateAssemblyInfo.InnerExecute() in c:\BuildAgent\work\5106452ed7682238\GitVersionTask\AssemblyInfoBuilder\UpdateAssemblyInfo.cs:line 65   at GitVersionTask.UpdateAssemblyInfo.Execute() in c:\BuildAgent\work\5106452ed7682238\GitVersionTask\AssemblyInfoBuilder\UpdateAssemblyInfo.cs:line 44']

[JakeGinnivan]

Thanks!