feat: add root/sudo detection to install script

1 files changed, 13 insertions, 9 deletions

diff --git a/install.sh b/install.sh
index 4a0776d..c266121 100755
--- a/install.sh
+++ b/install.sh
@@ -1,25 +1,29 @@
 #!/bin/sh
-dirs="dwm dmenu slstatus st"
+programs="dwm dmenu slstatus st"
 
 command_exists() {
   command -v "$1" >/dev/null 2>&1
 }
 
-for dir in $dirs; do
-  (cd "$dir" && echo "starting $dir installation" && make clean install && echo "$dir installation complete")
+has_root_perms() {
+  [ "$(id -u)" -eq 0 ] || [ -n "$SUDO_UID" ]
+}
+
+for program in $programs; do
+  has_root_perms && (cd "$program" && echo "starting $program installation" && make clean install && echo "$program installation complete") || echo "Can't install $program: you must run the script as root or with sudo."
 done
 
 if command_exists feh; then
   feh --bg-fill wallpaper.jpg
-  echo "~/.fehbg &" >> ~/.xinitrc
+  echo "~/.fehbg &" >>~/.xinitrc
 fi
 
 if command_exists picom; then
-  cp picom.conf /etc/xdg/picom.conf
-  echo "picom &" >> ~/.xinitrc
+  has_root_perms && cp picom.conf /etc/xdg/picom.conf || echo "Can't install picom configuration: you must run the script as root or with sudo."
+  echo "picom &" >>~/.xinitrc
 fi
 
-command_exists flameshot && echo "flameshot &" >> ~/.xinitrc
+command_exists flameshot && echo "flameshot &" >>~/.xinitrc
 
 command_exists neofetch && cp neofetch -r ~/.config/
 
@@ -30,5 +34,5 @@ if command_exists tmux; then
   cp tmux -r ~/.config/
 fi
 
-echo "slstatus &" >> ~/.xinitrc
-echo "exec dwm" >> ~/.xinitrc
+echo "slstatus &" >>~/.xinitrc
+echo "exec dwm" >>~/.xinitrc