add powershell version of build/version.sh

build/version.ps1

@@ -0,0 +1,89 @@
+$lastSvnRevision = 6962
+$lastSvnHash = '16cd907fe7482cb54a7374cd28b8501f138116be'
+$defineNumberMatch = [regex] '^#define\s+(\w+)\s+(\d+)$'
+$defineStringMatch = [regex] "^#define\s+(\w+)\s+[`"']?(.+?)[`"']?$"
+$semVerMatch = [regex] 'v?(\d+)\.(\d+).(\d+)(?:-(\w+))?'
+
+if (!(git rev-parse --is-inside-work-tree 2>$null)) {
+  throw 'git repo not found'
+}
+
+$repositoryRootPath = git rev-parse --git-path .  | Join-Path -ChildPath .. | Resolve-Path
+$buildPath = Join-Path $repositoryRootPath 'build'
+$gitVersionHeaderPath = Join-Path $buildPath 'git_version.h'
+$gitVersionXmlPath = Join-Path $buildPath 'git_version.xml'
+
+if (!(Test-Path $gitVersionHeaderPath)) {
+  throw "missing git_version.h in ${buildPath}"
+}
+
+$version = @{}
+Get-Content $gitVersionHeaderPath | %{$_.Trim()} | ?{$_} | %{
+  switch -regex ($_) {
+    $defineNumberMatch {
+      $version[$Matches[1]] = [int]$Matches[2];
+    }
+    $defineStringMatch {
+      $version[$Matches[1]] = $Matches[2];
+    }
+  }
+}
+
+if(!($version.ContainsKey('BUILD_GIT_VERSION_NUMBER') -and $version.ContainsKey('BUILD_GIT_VERSION_STRING'))) {
+  throw 'invalid git_version.h'
+}
+
+$gitRevision = $lastSvnRevision + ((git log --pretty=oneline "$($lastSvnHash)..HEAD" 2>$null | Measure-Object).Count)
+$gitBranch = git symbolic-ref --short HEAD 2>$null
+$gitHash = git rev-parse --short HEAD 2>$null
+$gitVersionString = $gitRevision, $gitBranch, $gitHash -join '-'
+$exactGitTag = git describe --exact-match --tags 2>$null
+
+if ($exactGitTag -match $semVerMatch) {
+  $version['TAGGED_RELEASE'] = $true
+  $version['RESOURCE_BASE_VERSION'] = $Matches[1..3]
+  $version['INSTALLER_VERSION'] = $gitVersionString = ($Matches[1..3] -join '.') + @("-$($Matches[4])",'')[!$Matches[4]]
+} else {
+  foreach ($rev in (git rev-list --tags 2>$null)) {
+    $tag = git describe --exact-match --tags $rev 2>$null
+    if ($tag -match $semVerMatch) {#
+      $version['TAGGED_RELEASE'] = $false
+      $version['RESOURCE_BASE_VERSION'] = $Matches[1..3] + $gitRevision
+      $version['INSTALLER_VERSION'] = ($Matches[1..3] -join '.') + "-" + $gitBranch
+      break;
+    }
+  }
+}
+
+$version['BUILD_GIT_VERSION_NUMBER'] = $gitRevision
+$version['BUILD_GIT_VERSION_STRING'] = $gitVersionString
+
+$version.GetEnumerator() | %{
+  $type = $_.Value.GetType()
+  $value = $_.Value
+  $fmtValue = switch ($type) {
+    ([string]) {"`"$value`""}
+    ([int]) {$value.ToString()}
+    ([bool]) {([int]$value).ToString()}
+    ([object[]]) {$value -join ', '}
+    default {
+      Write-Host "no format known for type '$type' - trying default string conversion" -ForegroundColor Red
+      {"`"$($value.ToString())`""}
+    }
+  }
+  "#define $($_.Key) $($fmtValue)"
+} | Out-File -FilePath $gitVersionHeaderPath -Encoding utf8
+
+$gitVersionXml = [xml]@'
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <GitVersionNumber></GitVersionNumber>
+    <GitVersionString></GitVersionString>
+  </PropertyGroup>
+</Project>
+'@
+
+$gitVersionXml.Project.PropertyGroup.GitVersionNumber = $gitRevision.ToString()
+$gitVersionXml.Project.PropertyGroup.GitVersionString = $gitVersionString
+$gitVersionXml.Save($gitVersionXmlPath)