From 5b8333e808ebae11defae1d387fcf32c25305a20 Mon Sep 17 00:00:00 2001
From: Dan Bornstein <danfuzz@murtbo.com>
Date: Mon, 6 Nov 2023 15:39:46 -0800
Subject: [PATCH] Add `env-minimize`.

---
 CHANGELOG.md                       | 3 ++-
 scripts/lib/bashy-basics/_setup.sh | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ba4b4f8..5b79de8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,8 @@ Breaking changes:
 * None.
 
 Other notable changes:
-* `bashy-basics`: New utility functions `env-clean` and `env-names`.
+* `bashy-basics`: New utility functions `env-clean`, `env-minimize`, and
+  `env-names`.
 
 ### v2.7 -- 2023-10-30
 
diff --git a/scripts/lib/bashy-basics/_setup.sh b/scripts/lib/bashy-basics/_setup.sh
index 3c132d8..4a8356b 100644
--- a/scripts/lib/bashy-basics/_setup.sh
+++ b/scripts/lib/bashy-basics/_setup.sh
@@ -79,6 +79,12 @@ function env-clean {
     done
 }
 
+# Runs `env-clean` passing it a reasonably "minimal" set of environment
+# variables to keep.
+function env-minimize {
+    env-clean HOME HOSTNAME LANG LOGNAME PATH PWD SHELL SHLVL TERM TMPDIR USER
+}
+
 # Prints a list of the names of all defined environment variables.
 function env-names {
     # It turns out that the most straightforward way to get a list of