Add auto-detection of OS and distro to scripts

box_setup.sh

@@ -1,41 +1,47 @@
 #!/bin/zsh
 
-[[ -z $1 ]] && {
-    echo "OS must be passed as an arg, run \`./box_setup.sh --help\` for more info"
-    exit 1
-}
-
 [[ $1 = "--help" ]] && {
-    echo "usage: ./box_setup.sh <OS-name> [system-type]\n"
-    echo "OS-name options: arch, artix, debian, macos"
-    echo "system-type options: personal, studio-music, work-placeholder\n"
-    echo "examples:\n./box_setup.sh arch studio-music\n./box_setup.sh macos\n"
+    echo "\nusage: ./box_setup.sh [system-type]"
+    echo "\nsystem-type options: personal, studio-music, work-placeholder"
+    echo "\nexamples:\n    ./box_setup.sh\n    ./box_setup.sh studio-music\n"
     exit 0
 }
 
-# set env vars for installs
-install_cmd=''
-update_pkg_manager_and_defs_cmd=''
-update_pkgs_cmd=''
-case $1 in
-    (arch | artix)
-        install_cmd="sudo pacman -S"
-        update_pkg_manager_and_defs_cmd='' # don't; update system instead?
-        update_pkgs_cmd='sudo pacman -Syu'
-	;;
-    (debian)
-        install_cmd="sudo apt install"
-        update_pkg_manager_and_defs_cmd='sudo apt update'
-        update_pkgs_cmd='sudo apt upgrade'
-	;;
-    (macos)
-        install_cmd="brew install"
-        update_pkg_manager_and_defs_cmd='brew update'
-        update_pkgs_cmd='brew upgrade'
-	;;
-esac
+# determine OS and, if linux, distro
+[[ "$OSTYPE" = *"darwin"* ]] && setup_os="macos" || {
+    [[ "$OSTYPE" = *"linux"* ]] && setup_os="linux" && {
+        [[ -f /etc/os-release ]] && . /etc/os-release
+        setup_distro=$(echo "${NAME%% *}" | tr '[:upper:]' '[:lower:]')
+        [[ -z "$setup_distro" ]] && echo "OS: linux; distro not detected" && exit 1
+    }
+}
+[[ -z "$setup_os" ]] && echo "OS not detected" && exit 1
 
-export BOX_SETUP_OS=$1
+# set package manager commands for installs
+[[ "$setup_os" = "macos" ]] && {
+    install_cmd="brew install"
+    update_pkg_manager_and_defs_cmd='brew update'
+    update_pkgs_cmd='brew upgrade'
+} || {
+    [[ "$setup_os" = "linux" ]] && {
+        case $setup_distro in
+            (arch | artix)
+                install_cmd="sudo pacman -S"
+                update_pkg_manager_and_defs_cmd='' # don't; update system instead?
+                update_pkgs_cmd='sudo pacman -Syu'
+        	;;
+            (debian)
+                install_cmd="sudo apt install"
+                update_pkg_manager_and_defs_cmd='sudo apt update'
+                update_pkgs_cmd='sudo apt upgrade'
+        	;;
+        esac
+    }
+}
+
+# export vars for scripts
+export BOX_SETUP_OS="$setup_os"
+export BOX_SETUP_DISTRO="$setup_distro"
 export BOX_SETUP_INSTALL_COMMAND="$install_cmd"
 export BOX_SETUP_UPDATE_PKG_MANAGER_AND_DEFS_CMD="$update_pkg_manager_and_defs_cmd"
 export BOX_SETUP_UPDATE_PKGS_CMD="$update_pkgs_cmd"
@@ -43,10 +49,10 @@ export BOX_SETUP_UPDATE_PKGS_CMD="$update_pkgs_cmd"
 # make dirs and copy configs/dotfiles
 source ./src_files/.config/zsh/.zshenv
 ./make_dirs.sh
-./copy_dotfiles.sh $2
+./copy_dotfiles.sh $1
 
 # install programs
 source $ZDOTDIR/.zshenv
 source $ZDOTDIR/.zshrc
-./install_programs.sh $2
+./install_programs.sh $1