1 files changed, 25 insertions, 0 deletions
diff --git a/packages.sh b/packages.sh
new file mode 100755
index 0000000..454e0e5
--- /dev/null
+++ b/packages.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+all=($(< packages.txt sed 's/#.*//' | xargs printf -- '%s\n' | sort -u))
+grps=($(printf -- '%s\n' "${all[@]}" | sed -n 's/^g://p'))
+pkgs=($(printf -- '%s\n' "${all[@]}" | sed -n 's/^p://p'))
+
+echo ' => In packages.txt, but not installed'
+comm -13 \
+    <(pacman -Qq|sort -u) \
+    <({ pacman -Qgq -- "${grps[@]}"; printf '%s\n' "${pkgs[@]}"; }|sort -u) |
+sed 's|^|  -> |'
+
+echo ' => Installed explicitly, but not in packages.txt'
+comm -23 \
+    <(pacman -Qetq|sort -u) \
+    <({ pacman -Qgq -- "${grps[@]}"; printf '%s\n' "${pkgs[@]}"; }|sort -u) |
+sed 's|^|  -> |'
+
+echo ' => Installed as dependencies, but only optionally needed'
+comm -23 \
+     <(pacman -Qdttq|sort -u) \
+     <(pacman -Qdtq |sort -u) |
+sed 's|^|  -> |'
+
+echo ' => Installed as dependencies, but no longer needed'
+pacman -Qdtq|sort -u |sed 's|^|  -> |'