Rename to new-branch.ps1 and new-tag.ps1

Scripts/new-branch.ps1

@@ -0,0 +1,48 @@
+<#
+.SYNOPSIS
+	new-branch.ps1 [<new-branch-name>] [<repo-dir>]
+.DESCRIPTION
+	Creates and switches to a new branch in a Git repository.
+.EXAMPLE
+	PS> .\new-branch.ps1 moonshot
+.NOTES
+	Author: Markus Fleschutz · License: CC0
+.LINK
+	https://github.com/fleschutz/PowerShell
+#>
+
+param([string]$NewBranchName = "", [string]$RepoDir = "$PWD")
+
+try {
+	if ($NewBranchName -eq "") { $NewBranchName = read-host "Enter new branch name" }
+
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	if (-not(test-path "$RepoDir" -pathType container)) { throw "Can't access directory: $RepoDir" }
+	set-location "$RepoDir"
+
+	$Null = (git --version)
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	$RepoDirName = (get-item "$RepoDir").Name
+	"🢃 Fetching updates for Git repository 📂$RepoDirName ..."
+
+	& git fetch --all --recurse-submodules --jobs=4
+	if ($lastExitCode -ne "0") { throw "'git fetch' failed" }
+
+	& git checkout -b "$NewBranchName"
+	if ($lastExitCode -ne "0") { throw "'git checkout -b $NewBranchName' failed" }
+
+	& git push origin "$NewBranchName"
+	if ($lastExitCode -ne "0") { throw "'git push origin $NewBranchName' failed" }
+
+	& git submodule update --init --recursive
+	if ($lastExitCode -ne "0") { throw "'git submodule update' failed" }
+
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	"✔️ created new branch '$NewBranchName' in Git repository 📂$RepoDirName in $Elapsed sec"
+	exit 0
+} catch {
+	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}