Add installaurpackage and updateaurpackages scripts

script/installaurpackage

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# Install an AUR package, passing the Git URL as the only argument.
+
+set -e
+
+if [ -z "$1" ]; then
+  echo "Usage: installaur <git url>"
+  exit 1
+fi
+
+pkgdir=$HOME/pkg
+basename=$(basename "$1" ".git")
+cd "$pkgdir"
+git clone --depth=1 --quiet "$1" "$basename"
+cd "$basename"
+makepkg -si

script/updateaurpackages

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+#
+# Update all AUR packages in $HOME/pkg
+
+find $HOME/pkg -mindepth 1 -maxdepth 1 -type d -print0 | while read -d $'\0' pkgdir
+do
+  cd "$pkgdir"
+  pullres=$(git pull --rebase)
+  if [ "$pullres" = "Already up to date." ]; then
+    continue
+  fi
+
+  makepkg -si --noconfirm --needed
+done