Add create-tag.ps1

Scripts/create-tag.ps1

@@ -0,0 +1,39 @@
+#!/bin/powershell
+<#
+.SYNTAX       ./create-tag.ps1 [<new-tag-name>] [<repo-dir>]
+.DESCRIPTION  creates a new tag in the current/given Git repository 
+.LINK         https://github.com/fleschutz/PowerShell
+.NOTES        Author: Markus Fleschutz / License: CC0
+#>
+
+param($NewTagName = "", $RepoDir = "$PWD")
+
+if ($NewTagName -eq "") {
+	$NewTagName = read-host "Enter new branch name"
+}
+
+try {
+	if (-not(test-path "$RepoDir" -pathType container)) { throw "Can't access directory: $RepoDir" }
+	set-location "$RepoDir"
+
+	& git --version
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	$Result = (git status)
+	if ($lastExitCode -ne "0") { throw "'git status' failed in $RepoDir" }
+	if ("$Result" -notmatch "nothing to commit, working tree clean") { throw "Repository is NOT clean: $Result" }
+
+	& git fetch --all --recurse-submodules
+	if ($lastExitCode -ne "0") { throw "'git fetch --all --recurse-submodules' failed" }
+
+	& git tag "$NewTagName"
+        if ($lastExitCode -ne "0") { throw "Error: 'git tag $NewTagName' failed!" }
+
+        & git push origin "$NewTagName"
+	if ($lastExitCode -ne "0") { throw "Error: 'git push origin $NewTagName' failed!" }
+
+	exit 0
+} catch {
+	write-error "ERROR: line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}