From 3354e959ffe648d8384ce3c634748dc794f8e82c Mon Sep 17 00:00:00 2001
From: Markus Fleschutz <markus@fleschutz.de>
Date: Mon, 6 Sep 2021 13:48:26 +0200
Subject: [PATCH] Add remove-tag.ps1

---
 Data/scripts.csv       |  1 +
 README.md              |  1 +
 Scripts/remove-tag.ps1 | 45 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 47 insertions(+)
 create mode 100755 Scripts/remove-tag.ps1

diff --git a/Data/scripts.csv b/Data/scripts.csv
index 77b484b2..988abead 100644
--- a/Data/scripts.csv
+++ b/Data/scripts.csv
@@ -184,6 +184,7 @@ reboot.ps1, reboots the local computer (needs admin rights)
 reboot-fritzbox.ps1, reboots the FRITZ!box device
 remove-empty-dirs.ps1, removes empty subfolders within the given directory tree
 remove-print-jobs.ps1, removes all jobs from all printers
+remove-tag.ps1, removes a tag in a Git repository 
 restart-network-adapters.ps1, restarts all local network adapters
 search-filename.ps1, searches the directory tree for filenames by given pattern 
 search-files.ps1, searches the given pattern in the given files
diff --git a/README.md b/README.md
index 2a053e16..88af42d2 100644
--- a/README.md
+++ b/README.md
@@ -210,6 +210,7 @@ Mega Collection of PowerShell Scripts
 | [new-tag.ps1](Scripts/new-tag.ps1)                   | Creates a new tag in a Git repository                              | [Help](Docs/new-tag.ps1.md)             |
 | [pull-repo.ps1](Scripts/pull-repo.ps1)               | Pulls updates for a Git repository (including submodules)          | [Help](Docs/pull-repo.ps1.md)           |
 | [pull-repos.ps1](Scripts/pull-repos.ps1)             | Pulls updates for all Git repositories under a directory (including submodules) | [Help](Docs/pull-repos.ps1.md)|
+| [remove-tag.ps1](Scripts/remove-tag.ps1)             | Removes a tag in a Git repository                                  | [Help](Docs/remove-tag.ps1.md)       |
 | [switch-branch.ps1](Scripts/switch-branch.ps1)       | Switches the branch in a Git repository (including submodules)     | [Help](Docs/switch-branch.ps1.md)       |
 | [sync-repo.ps1](Scripts/sync-repo.ps1)               | Synchronizes a Git repository by push & pull (including submodules) | [Help](Docs/sync-repo.ps1.md)          |
 
diff --git a/Scripts/remove-tag.ps1 b/Scripts/remove-tag.ps1
new file mode 100755
index 00000000..0d37b950
--- /dev/null
+++ b/Scripts/remove-tag.ps1
@@ -0,0 +1,45 @@
+<#
+.SYNOPSIS
+	remove-tag.ps1 [<TagName>] [<Mode>] [<RepoDir>]
+.DESCRIPTION
+	Removes a Git tag (locally, remote, or both)
+.EXAMPLE
+	PS> .\remove-tag.ps1 v1.7 locally
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz · License: CC0
+#>
+
+param([string]$TagName = "", [string]$Mode = "", [string]$RepoDir = "$PWD")
+
+try {
+	if ($TagName -eq "") { $TagName = read-host "Enter new tag name" }
+	if ($Mode -eq "") { $Mode = read-host "Remove the tag locally, remote, or both" }
+
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	if (-not(test-path "$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" }
+
+	if (($Mode -eq "locally") -or ($Mode -eq "both")) {
+		"Removing local tag..."
+		& git -C "$RepoDir" tag --delete $TagName
+		if ($lastExitCode -ne "0") { throw "'git tag --delete' failed" }
+	}
+
+	if (($Mode -eq "remote") -or ($Mode -eq "both")) {
+		"Removing remote tag..."
+		& git -C "$RepoDir" push origin :refs/tags/$TagName
+		if ($lastExitCode -ne "0") { throw "'git push origin' failed" }
+	}
+
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	"✔️ removed tag '$TagName' in $Elapsed sec"
+	exit 0
+} catch {
+	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}