Added build script for Microsoft Learn docs

Build-Toolkit-Docs.ps1

@@ -0,0 +1,124 @@
+Param (
+  [Parameter(HelpMessage = "Where to output docs")]
+  [string]$OutputDir = "docs"
+)
+
+$tocContents = "items:`n"
+
+function AppendTocItem([string] $name, [int] $level, [hashtable] $properties) {
+  $indent = "  " * $level
+  $firstLineIndent = "  " * ($level - 1)
+
+  $lines = "$firstLineIndent- name: $name`n"
+
+  foreach($key in $properties.Keys) {
+    $lines += "$indent$($key): $($properties[$key])`n"
+  }
+
+  return $lines
+}
+
+function GetTitleFrontMatterFromMarkdownFile($markdownFile) {
+  $contents = Get-Content $markdownFile -Raw
+  return GetTitleFrontMatterFromMarkdownContents $contents
+}
+
+function GetTitleFrontMatterFromMarkdownContents($contents) {
+  $contents -match 'title:\s*(?<title>.*)' | Out-Null
+  return $Matches.title
+}
+
+function ProcessMarkdownFile($markdownFile) {
+  $contents = Get-Content $markdownFile -Raw
+  $header = GetTitleFrontMatterFromMarkdownContents $contents
+
+  # Find end of YAML
+  $endIndex = $contents | Select-String -Pattern "---" -AllMatches | ForEach-Object { $_.Matches[1].Index }
+
+  # Insert Header
+  $contents = $contents.Substring(0, $endIndex + 5) + "`n# $header`n" + $contents.Substring($endIndex + 5)
+
+  # Find Sample Placeholders, replace with code content
+  foreach ($sample in ($contents | Select-String -Pattern '>\s*\[!SAMPLE\s*(?<sampleid>.*)\s*\]\s*' -AllMatches).Matches) {
+    $sampleid = $sample.Groups[1].Value
+    $sampleString = $sample.Groups[0].Value
+
+    # Find matching filename for CS
+    foreach ($csFile in Get-ChildItem -Recurse -Path ($markdownFile.DirectoryName + '\**\*.xaml.cs').Replace('\', '/') |
+      Where-Object { $_.FullName -notlike "*\bin\*" -and $_FullName -notlike "*\obj\*" }) {
+      $csSample = Get-Content $csFile -Raw
+
+      if ($csSample -match '\[ToolkitSample\s?\(\s*id:\s*(?:"|nameof\()\s?' + $sampleid + '\s?(?:"|\))') {
+        # Get Relative Path
+        $docPath = $(Join-Path "components" $($csfile.FullName.Replace($componentsRoot.Path, ''))).Replace('\', '/').Trim('/')
+
+        # See https://learn.microsoft.com/en-us/contribute/content/code-in-docs#out-of-repo-snippet-references
+        $snippet = ':::code language="xaml" source="~/../code-windows/' + $docPath.Substring(0, $docPath.Length - 3) + '":::' + "`n`n"
+
+        $snippet = $snippet + ':::code language="csharp" source="~/../code-windows/' + $docPath + '":::' + "`n`n"
+
+        # Replace our Sample Placeholder with references for docs
+        $contents = $contents.Replace($sampleString, $snippet)
+      }
+    }
+  }
+
+  # Make any learn links relative
+  $contents = $contents.Replace('https://learn.microsoft.com', '')
+
+  $markdownFileName = $markdownFile.Name
+
+  # If the file is named the same as the component, rename it to index.md
+  # This is so that the URL for the component is /componentName instead of /componentName/componentName
+  if ($markdownFileName -eq "$componentName.md") {
+    $markdownFileName = "index.md"
+  }
+
+  $mdOutputPath = Join-Path $OutputDir $componentName
+  $mdOutputFile = Join-Path $mdOutputPath $markdownFileName
+
+  # Create output directory if it doesn't exist
+  if (-not (Test-Path $mdOutputPath)) {
+    New-Item -ItemType Directory -Path $mdOutputPath | Out-Null
+  }
+
+  # Write file contents
+  Write-Host 'Writing File:', $mdOutputFile
+  $contents | Set-Content $mdOutputFile
+
+  return $mdOutputFile
+}
+
+$componentsRoot = Resolve-Path $PSScriptRoot/../components/
+
+# For each component
+foreach ($componentFolder in Get-ChildItem -Path $componentsRoot -Directory) {
+  $componentName = $componentFolder.Name
+
+  # Add component to TOC
+  $markdownFiles = Get-ChildItem -Recurse -Path "$componentFolder/samples/**/*.md" | Where-Object { $_.FullName -notlike "*\bin\*" -and $_FullName -notlike "*\obj\*" }
+
+  # If there's only one markdown file, append it to the root of the TOC
+  if ($markdownFiles.Count -eq 1) {    
+    $header = GetTitleFrontMatterFromMarkdownFile $markdownFiles[0]
+    $mdOutputFile = ProcessMarkdownFile $markdownFiles[0]
+
+    $tocHref = $mdOutputFile.Trim('/').Replace($OutputDir, '').Trim('\')
+    $tocContents += AppendTocItem $header 1 @{ "href" = $tocHref }
+  }
+  else {
+    $tocContents += AppendTocItem $componentName 1 @{ "items" = "" }
+
+    # For each markdown file
+    foreach ($markdownFile in $markdownFiles) {
+      $header = GetTitleFrontMatterFromMarkdownFile $markdownFile
+      $mdOutputFile = ProcessMarkdownFile $markdownFile
+
+      $tocHref = $mdOutputFile.Trim('/').Replace($OutputDir, '').Trim('\')
+      $tocContents += AppendTocItem $header 2 @{ "href" = $tocHref }
+    }
+  }
+}
+
+Write-Host 'Writing TOC'
+$tocContents | Set-Content (Join-Path $OutputDir "TOC.yml")