Add list-commit-statistics.ps1

Scripts/list-commit-statistics.ps1

@@ -0,0 +1,38 @@
+<#
+.SYNOPSIS
+	Lists the commit statistics of a Git repository
+.DESCRIPTION
+	This PowerShell script lists the commit statistics of a Git repository.
+.PARAMETER RepoDir
+	Specifies the path to the Git repository.
+.EXAMPLE
+	PS> ./list-commit-statistics
+	    1720 Markus Fleschutz <markus@fleschutz.de>
+	    ...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$RepoDir = "$PWD")
+
+try {
+	"⏳ Step 1/3: Checking requirements..."
+	if (-not(test-path "$RepoDir" -pathType container)) { throw "Can't access directory: $RepoDir" }
+
+	$Null = (git --version)
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	"⏳ Step 2/3: Fetching updates..."
+	& git -C "$RepoDir" fetch --all --quiet
+	if ($lastExitCode -ne "0") { throw "'git fetch' failed with exit code $lastExitCode" }
+
+	"⏳ Step 3/3: Listing commits without merges..."
+	git -C "$RepoDir" shortlog --summary --numbered --email --no-merges
+	if ($lastExitCode -ne "0") { throw "'git shortlog' failed with exit code $lastExitCode" }
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}