harden .profile wrt variables and having external programs

1 files changed, 23 insertions, 0 deletions

diff --git a/.local/lib/xdg.sh b/.local/lib/xdg.sh
new file mode 100644
index 0000000..44aeee2
--- /dev/null
+++ b/.local/lib/xdg.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+# This should be readable by /bin/sh, but I'm going to assume bash.
+
+# Sets up XDG environmental variables, so programs using them don't have to
+# worry about checking if they are set.
+# http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+
+[[ -n $XDG_DATA_HOME ]] || export XDG_DATA_HOME="$HOME/.local/share"
+[[ -n $XDG_CONFIG_HOME ]] || export XDG_CONFIG_HOME="$HOME/.config"
+[[ -n $XDG_DATA_DIRS ]] || export XDG_DATA_DIRS="/usr/local/share/:/usr/share/"
+[[ -n $XDG_CONFIG_IRS ]] || export XDG_CONFIG_DIRS="/etc/xdg"
+[[ -n $XDG_CACHE_HOME ]] || export XDG_CACHE_HOME="$HOME/.cache"
+
+# Check if XDG_RUNTIME_DIR is set, but has a bogus setting
+if [[ -n $XDG_RUNTIME_DIR ]] && [[ ! -d $XDG_RUNTIME_DIR ]]; then
+	unset XDG_RUNTIME_DIR
+fi
+
+# Set XDG_RUNTIME_DIR if we can
+if [[ -z $XDG_RUNTIME_DIR ]] && [[ -n $TMPDIR ]]; then
+	export XDG_RUNTIME_DIR="$TMPDIR/xdg-runtime"
+	install -dm0700 "$XDG_RUNTIME_DIR"
+fi