Added list-old-branches.ps1

scripts/list-old-branches.ps1

@@ -0,0 +1,41 @@
+<#
+.SYNOPSIS
+	Lists old Git branches
+.DESCRIPTION
+	This PowerShell script lists branches in a Git repository matching: (1) search pattern, (2) already merged, (3) older than 2024
+.PARAMETER pathToRepo
+	Specifies the path to the Git repository (current working directory by default)
+.EXAMPLE
+	PS> ./list-old-branches.ps1 C:\Repos\UFA
+q#>
+
+param([string]$pathToRepo = "$PWD", [string]$searchPattern = "origin/dev/*")
+
+try {
+	"(1/3) Searching for Git executable...    "
+        & git --version
+        if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+        "(2/3) Checking local repository..."
+        if (!(Test-Path "$pathToRepo" -pathType container)) { throw "Can't access repo folder: $pathToRepo" }
+
+	"(3/3) Querying already merged branches with name '$searchPattern'..."
+	$branches = $(git -C "$pathToRepo" branch --list --remotes --no-color --no-column --merged HEAD "$searchPattern")
+	if ($lastExitCode -ne "0") { throw "'git branch --list' failed" }
+
+	""
+	"LAST COMMIT DATE   BRANCH NAME"
+	"----------------   -----------"
+	foreach($branch in $branches) {
+		$branchName = $branch.Trim() # remove leading spaces
+
+		$dateOfLastCommit = (git -C "$pathToRepo" log -1 --format=%cs $branchName)
+		if ($dateOfLastCommit -like "2024-*") { continue} # too young
+
+		"$dateOfLastCommit         $branchName"
+	}
+	exit 0 # success
+} catch {
+	Write-Error "Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}