systemd: replace profile.service with systemd-environment.d generator

This moves loading of the environment variables out of the normal
service startup flow and has systemd load the variables early.
Shim ZSH to load the environment.d configuration when running without
systemd.

Signed-off-by: Joe Groocock <me@frebib.net>

README.md

@@ -4,7 +4,8 @@
 To get started, clone this repo and link the relevant files/directories
 
 ```shell
-git clone https://github.com/frebib/dotfiles.git ~/.config/dotfiles
-ln -sfv .config/dotfiles/* .config/
-ln -sfv .config/dotfiles/profile .zprofile
+git clone https://github.com/frebib/dotfiles.git ~/.config
+ln -sfv .config/zsh/.zshenv ~
+# if it is not already "enabled", make sure the systemd-environment.d generator is active
+sudo ln -sfv /lib/systemd/user-environment-generators/30-systemd-environment-d-generator /lib/systemd/user-generators/
 ```

environment.d/10-profile.conf

@@ -0,0 +1,34 @@
+LC_ALL="en_GB.UTF-8"
+LANG="en_GB.UTF-8"
+LC_NUMERIC="en_GB"
+
+XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-$HOME/.config}"
+XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
+XDG_DATA_HOME="${XDG_DATA_HOME:-$HOME/.local/share}"
+
+EDITOR="vim"
+VISUAL="vim"
+
+# Override paths for non-compliant programs
+# https://wiki.archlinux.org/index.php/XDG_Base_Directory_support
+
+ADOTDIR="$XDG_DATA_HOME/zsh/antigen"
+CARGO_HOME="$XDG_DATA_HOME/cargo"
+GNUPGHOME="$XDG_CONFIG_HOME/gnupg"
+GOPATH="$XDG_DATA_HOME/go"
+NPM_CONFIG_USERCONFIG="$XDG_CONFIG_HOME/npm/npmrc"
+#PASSWORD_STORE_DIR="$XDG_DATA_HOME/pass"
+PYTHONHISTFILE="$XDG_DATA_HOME/python/histfile"
+RUSTUP_HOME="$XDG_DATA_HOME/rustup"
+TERMINFO="$XDG_DATA_HOME/terminfo"
+TERMINFO_DIRS="$XDG_DATA_HOME/terminfo:/usr/share/terminfo"
+VIMDIR="$XDG_CONFIG_HOME/vim"
+VIMRC="$VIMDIR/vimrc"
+VIMINIT=":so $VIMRC"
+WEECHAT_HOME="$XDG_CONFIG_HOME/weechat"
+XINITRC="$XDG_CONFIG_HOME/X11/xinitrc"
+ZDOTDIR="$XDG_CONFIG_HOME/zsh"
+
+PATH="${PATH}:/sbin:/usr/sbin:${XDG_CONFIG_HOME}/scripts:${GOPATH}/bin"
+
+# vim: ft=sh

profile

@@ -1,56 +0,0 @@
-export LC_ALL=en_GB.UTF-8
-export LANG=en_GB.UTF-8
-export LC_NUMERIC=en_GB
-
-export XDG_CONFIG_HOME="${XDG_CONFIG_HOME:-$HOME/.config}"
-export XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
-export XDG_DATA_HOME="${XDG_DATA_HOME:-$HOME/.local/share}"
-export XDG_LOCAL_HOME="$HOME/.local"
-
-mkdir -p "$XDG_CONFIG_HOME" "$XDG_CACHE_HOME" "$XDG_DATA_HOME" "$XDG_LOCAL_HOME"
-
-case "$(basename "$(readlink -f /proc/$$/exe)")" in
-    zsh)  thisfile="$(readlink -f "${(%):-%N}")";;
-    bash) thisfile="$(readlink -f "${BASH_SOURCE[0]}")";;
-    *)   thisfile="$(find /proc/$$/fd/ | xargs -n1 -r readlink -f | grep profile | head -n1)";;
-esac
-
-export EDITOR="vim"
-export VISUAL="vim"
-
-# Override paths for non-compliant programs
-# https://wiki.archlinux.org/index.php/XDG_Base_Directory_support
-
-export ADOTDIR="$XDG_DATA_HOME/zsh/antigen"
-export CARGO_HOME="$XDG_DATA_HOME/cargo"
-export GNUPGHOME="$XDG_CONFIG_HOME/gnupg"
-export GOPATH="$XDG_DATA_HOME/go"
-export NPM_CONFIG_USERCONFIG=$XDG_CONFIG_HOME/npm/npmrc
-export PASSWORD_STORE_DIR="$XDG_DATA_HOME/pass"
-export PYTHONHISTFILE="$XDG_DATA_HOME/python/histfile"
-export RUSTUP_HOME="$XDG_DATA_HOME/rustup"
-export TERMINFO="$XDG_DATA_HOME/terminfo"
-export TERMINFO_DIRS="$XDG_DATA_HOME/terminfo:/usr/share/terminfo"
-export VIMDIR="$XDG_CONFIG_HOME/vim"
-export VIMRC="$VIMDIR/vimrc"
-export VIMINIT=":so $VIMRC"
-export WEECHAT_HOME="$XDG_CONFIG_HOME/weechat"
-export XINITRC="$XDG_CONFIG_HOME/X11/xinitrc"
-export ZDOTDIR="$XDG_CONFIG_HOME/zsh"
-
-export DOTFILES="$(dirname "${thisfile:-$XDG_CONFIG_HOME/dotfiles/.profile}")"
-export PATH="${PATH}:/sbin:/usr/sbin:$DOTFILES/scripts:$GOPATH/bin"
-
-exists() { which $@ 0<&- 1>/dev/null 2>/dev/null; }
-
-if [ -z "$DBUS_SESSION_BUS_ADDRESS" ] && exists dbus-launch; then
-    eval $(dbus-launch --sh-syntax --exit-with-session)
-fi
-
-# Execute this after updating dbus/systemd environment
-# Source secret keys and values into environment
-if [ -f "$XDG_CONFIG_HOME/secrets" ]; then
-    set -o allexport
-    source $XDG_CONFIG_HOME/secrets
-    set +o allexport
-fi

systemd/user/basic.target.wants/profile.service

@@ -1 +0,0 @@
-/home/frebib/.config/systemd/user/profile.service

systemd/user/i3.service

@@ -2,7 +2,7 @@
 Description=i3 - an improved dynamic, tiling window manager
 Requires=xorg.target
 Before=graphical-session.target
-After=profile.service xprofile.service xorg.target
+After=xprofile.service xorg.target
 
 [Service]
 ExecStart=/usr/bin/i3

systemd/user/profile.service

@@ -1,10 +0,0 @@
-[Unit]
-Description=Load profile environment into session
-Before=graphical-session-pre.target
-
-[Service]
-Type=oneshot
-ExecStart=/bin/sh -c '. $HOME/.config/dotfiles/profile && systemctl --user import-environment'
-
-[Install]
-WantedBy=basic.target

systemd/user/xbindkeys.service

@@ -1,7 +1,5 @@
 [Unit]
 Description=XBindKeys
-Requires=profile.service
-After=profile.service
 
 [Service]
 ExecStart=/usr/bin/xbindkeys -n -f $XDG_CONFIG_HOME/X11/xbindkeysrc

systemd/user/xprofile.service

@@ -1,13 +1,12 @@
 [Unit]
 Description=Load Xorg configuration
 PartOf=xorg.target
-Requires=profile.service
-After=xorg.target profile.service
+After=xorg.target
 
 [Service]
 Type=oneshot
 RemainAfterExit=yes
-ExecStart=/usr/bin/bash -c '. $XDG_CONFIG_HOME/X11/xprofile; systemctl --user import-environment'
+ExecStart=/bin/sh -c '. $XDG_CONFIG_HOME/X11/xprofile; systemctl --user import-environment'
 
 [Install]
 WantedBy=xorg.target

systemd/user/xsettingsd.service

@@ -1,7 +1,7 @@
 [Unit]
 Description=xsettingsd - provide settings to X11 applications
 Requires=xorg.target
-After=xorg.target profile.service
+After=xorg.target
 
 [Service]
 ExecStart=/bin/sh -c 'xsettingsd -c $XDG_CONFIG_HOME/xsettingsd/xsettingsd.local'

zsh/.gitignore

@@ -1,4 +1 @@
-/antigen/
-/log/
-/histfile
 /.zcompdump*

zsh/.zshenv

@@ -0,0 +1,5 @@
+set -o allexport
+. ~/.config/environment.d/*.conf
+set +o allexport
+
+# vim: ft=sh

zsh/.zshrc

@@ -149,7 +149,7 @@ ZSH_HIGHLIGHT_STYLES[back-dollar-quoted-argument]='fg=cyan'
 ZSH_HIGHLIGHT_STYLES[assign]='fg=green'
 ZSH_HIGHLIGHT_STYLES[redirection]='fg=cyan,bold'
 
-source "$DOTFILES/aliases"
+source "$XDG_CONFIG_HOME/aliases"
 
 # Source secret keys and values into environment
 if [ -f "$XDG_CONFIG_HOME/secrets" ]; then