From aa8e822c71e5fdb546f1673360fb555dbc9e9a63 Mon Sep 17 00:00:00 2001
From: William Beuil <william.beuil@gmail.com>
Date: Mon, 25 Jan 2021 15:36:44 +0100
Subject: [PATCH] Add uninstall command

---
 README.md                 | 10 ++++++++++
 libexec/dctlenv-uninstall | 21 +++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100755 libexec/dctlenv-uninstall

diff --git a/README.md b/README.md
index cff427b..8677248 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,16 @@ $ dctlenv list-remote
 0.2.3
 ```
 
+### `dctlenv uninstall [<version>]`
+
+Uninstall a specific version of driftctl.
+
+```shell
+$ dctlenv uninstall 0.2.3
+Uninstall driftctl v0.2.3
+driftctl v0.2.3 is successfully uninstalled
+```
+
 ### `dctlenv root`
 
 Display the root directory where dctlenv is.
diff --git a/libexec/dctlenv-uninstall b/libexec/dctlenv-uninstall
new file mode 100755
index 0000000..3e275d4
--- /dev/null
+++ b/libexec/dctlenv-uninstall
@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -uo pipefail
+
+[ "$#" -gt 1 ] && log_error "Need 1 version instead of $#" 'usage: dctlenv uninstall [<version>]'
+
+version_requested="${1:-""}"
+[ -n "$version_requested" ] || log_error 'Version is not specified' 'usage: dctlenv uninstall [<version>]'
+
+version="$(dctlenv-list 2>/dev/null | sed -E 's/^(\*| )? //g; s/ \(set by .+\)$//' | grep -e "$version_requested" | head -n 1)"
+[ -n "$version" ] || log_error "No versions matching '$version_requested' found in local"
+
+dst_path="$DCTLENV_ROOT/versions/$version"
+if [ -f "$dst_path/driftctl" ]; then
+  echo "Uninstall driftctl v$version"
+  rm -r "$dst_path"
+
+  # If no versions remain, remove the versions directory
+  rmdir "$DCTLENV_ROOT/versions" 2>/dev/null
+
+  echo "driftctl v$version is successfully uninstalled"
+fi