Update the manuals in Docs/

Docs/fetch-repos.md

@@ -1,4 +1,4 @@
-## fetch-repos.ps1 - Fetches updates for Git repos
+## The fetch-repos.ps1 PowerShell Script
 
 This PowerShell script fetches updates for all Git repositories in a folder (including submodules).
 
@@ -32,4 +32,54 @@ Author: Markus Fleschutz | License: CC0
 ## Related Links
 https://github.com/fleschutz/PowerShell
 
+## Source Code
+<#
+.SYNOPSIS
+	Fetches updates for Git repos
+.DESCRIPTION
+	This PowerShell script fetches updates for all Git repositories in a folder (including submodules).
+.PARAMETER ParentDir
+	Specifies the path to the parent folder
+.EXAMPLE
+	PS> ./fetch-repos C:\MyRepos
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$ParentDir = "$PWD")
+
+try {
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	Write-Host "⏳ (1) Searching for Git executable...  " -noNewline
+	& git --version
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	$ParentDirName = (Get-Item "$ParentDir").Name
+	Write-Host "⏳ (2) Checking parent folder 📂$ParentDirName...  " -noNewline
+	if (-not(Test-Path "$ParentDir" -pathType container)) { throw "Can't access folder: $ParentDir" }
+	$Folders = (Get-ChildItem "$ParentDir" -attributes Directory)
+	$NumFolders = $Folders.Count
+	Write-Host "$NumFolders subfolders"
+
+	[int]$Step = 3
+	foreach ($Folder in $Folders) {
+		$FolderName = (Get-Item "$Folder").Name
+		"⏳ ($Step/$($NumFolders + 2)) Fetching into 📂$FolderName..."
+
+		& git -C "$Folder" fetch --all --recurse-submodules --prune --prune-tags --force
+		if ($lastExitCode -ne "0") { throw "'git fetch' in $Folder failed with exit code $lastExitCode" }
+
+		$Step++
+	}
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	"✔️ fetched $NumFolders Git repositories in $Elapsed sec."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}
+
 *Generated by convert-ps2md.ps1 using the comment-based help of fetch-repos.ps1*