systemd: Revamp systemd unit installation

Shipping the wanted symlinks didn't seem to work right and probably
isn't the right approach either. Instead, call into systemctl from
install.extra

May have to manually delete old wanted links and re-run install

config/systemd/user/default.target.wants/ssh-agent.service

@@ -1 +0,0 @@
-../ssh-agent.service

config/systemd/user/ssh-agent.service

@@ -4,9 +4,9 @@ Description=SSH publickey authentication agent
 [Service]
 Type=simple
 Environment=SSH_AUTH_SOCK=%t/ssh-agent.sock
-ExecStart=/usr/bin/ssh-agent -D -a ${SSH_AUTH_SOCK}
+ExecStart=/usr/bin/ssh-agent -D -a ${SSH_AUTH_SOCK} -t 2h
 ExecStartPost=/usr/bin/systemctl --user set-environment SSH_AUTH_SOCK=${SSH_AUTH_SOCK}
-ExecStopPre=/usr/bin/systemctl --user unset-environment SSH_AUTH_SOCK=${SSH_AUTH_SOCK}
+ExecStopPost=/usr/bin/systemctl --user unset-environment SSH_AUTH_SOCK=${SSH_AUTH_SOCK}
 
 [Install]
 WantedBy=default.target

install

@@ -1,6 +1,6 @@
 #!/bin/zsh
-# .files/installer
+# .files/install
-# (c) 2014 MORI Taeyeon
+# (c) 2014-2017 MORI Taeyeon
 
 # Paths & Utils
 DOT="$(realpath "$(dirname "$0")")"
@@ -9,7 +9,9 @@ cd "$DOT"
 setopt EXTENDED_GLOB
 source "$DOT/lib/libzsh-utils.zsh"
 
+
 # Parse commandline
+# =============================
 OVERWRITE=false
 ASK=true
 
@@ -41,7 +43,9 @@ for arg in "$@"; do
 done
 [[ -n "$STATE" ]] && err "Option $STATE is missing it's parameter!" && exit 1
 
+
 # Helper functions
+# =============================
 function generate() {
     [[ -e "$1" ]] && ! $OVERWRITE && ! grep -q "Generated by .files/install" "$1" && \
         err "Custom version of $1 detected. Please delete it before running .files/install" && exit 1
@@ -58,6 +62,9 @@ function relink() {
     color 31 ln -s "$(relpath "$1" "$(dirname "$2")")" "$2"
 }
 
+
+# Prepare
+# =============================
 # Update git modules
 msg "Updating git submodules..."
 git submodule update --init --recursive
@@ -77,12 +84,16 @@ else
     color 36 echo "  default EMAIL=\"$EMAIL\""
 fi
 
+# Write down answers
 color 32 echo "  Writing etc/user-info"
 generate "$DOT/etc/user-info" <<EOF
 REALNAME="$REALNAME"
 EMAIL="$EMAIL"
 EOF
 
+
+# Write files to $HOME
+# =============================
 # Setup dotfiles
 msg "Linking dotfiles..."
 for file in "$DOT/dotfiles"/*; do
@@ -113,7 +124,9 @@ msg "Linking .config files... ($XDG_CONFIG_HOME)"
     done
 )
 
+
 # Setup git
+# =============================
 msg "Setting up Git configuration..."
 
 GIT="$DOT/git"
@@ -138,7 +151,9 @@ generate "$GIT/user-info" <<EOF
     email = $EMAIL
 EOF
 
+
 # Setup ZSH/Prezto
+# =============================
 msg "Setting up ZSH configuration..."
 ZSH="$DOT/zsh"
 
@@ -154,7 +169,10 @@ for file in zshrc zpreztorc zlogin zlogout zprofile; do
     relink "$ZSH/$file" "$ZSH/.$file"
 done
 
-relink "$ZSH/prezto" "$ZSH/.zprezto"
+
+# Do misc setup
+# =============================
+test -f "$DOTFILES/install.extra" && "$DOTFILES/install.extra"
 
 # Check login shell
 if  getent passwd $(id -un) | grep -q 'zsh$'; then
@@ -164,7 +182,7 @@ else
     chsh -s "$(which zsh)"
 fi
 
-
+# Done.
 warn "You may need to relog for all changes to take effect."
 warn "If you're currently running zsh, you definitely need to at least restart the shell to apply changes."
 

install.extra

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+echo Starting systemd user units
+systemctl --user enable --now ssh-agent
+