From 2a6dc16a75f4d7beed631d97a99b6a1fc82c4e79 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@sbcglobal.net>
Date: Thu, 29 Jan 2015 01:19:57 -0500
Subject: split login.sh into login.d

---
 .config/login.d/01_xdg.sh | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 .config/login.d/01_xdg.sh

(limited to '.config/login.d/01_xdg.sh')

diff --git a/.config/login.d/01_xdg.sh b/.config/login.d/01_xdg.sh
new file mode 100644
index 0000000..2e0b42c
--- /dev/null
+++ b/.config/login.d/01_xdg.sh
@@ -0,0 +1,44 @@
+#!/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_DIRS ]] || 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 $XDG_RUNTIME_DIR ]] && type flock &>/dev/null; then
+	_diy_xdg_runtime_login() {
+		export XDG_RUNTIME_DIR="$XDG_CACHE_HOME/xdg-runtime-dir/$HOSTNAME"
+		readonly XDG_RUNTIME_DIR
+		# There's a race condition here, between the `ln -s` and `flock`.
+		# But it's not like I'll be hammering a box with logins.
+		if [[ ! -d "$XDG_CACHE_HOME" ]]; then
+			local tmp="$(mktemp --tmpdir -- "${USER}@${HOSTNAME}-runtime.XXXXXXXXXX")"
+			mkdir -p -- "$XDG_CACHE_HOME/xdg-runtime-dir"
+			ln -sfT -- "$tmp" "$XDG_RUNTIME_DIR"
+		fi
+		if ! [[ /dev/fd/7 -ef "$XDG_CACHE_HOME/xdg-runtime-dir/.lock" ]]; then
+			exec 7 >"$XDG_CACHE_HOME/xdg-runtime-dir/.lock"
+		fi
+		if flock -sn 7; then
+			trap _diy_xdg_runtime_logout EXIT
+		fi
+	}
+	_diy_xdg_runtime_logout() {
+		if flock -xn 7; then
+			rm -rf -- "$(readlink "$XDG_RUNTIME_DIR")"
+		fi
+	}
+	_diy_xdg_runtime_login
+fi
-- 
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