diff options
Diffstat (limited to '.config/login.d/01_xdg.sh')
| -rw-r--r-- | .config/login.d/01_xdg.sh | 44 |
1 files changed, 44 insertions, 0 deletions
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 |