refactored if statements to switch case

pman.sh

@@ -45,64 +45,77 @@ if [ "$command" = "" ]; then
 fi
 
 # Evaluate the command arguments
-if [ "$command_args" = "search" ]; then
-  command_args="-Ss"
-elif [ "$command_args" = "provides" ]; then
-  # Update the cache
-  su_needed=true
-  command_args="-Fy"
-  execute_command "${@}"
+case "$command_args" in
+  "search")
+    command_args="-Ss"
+    ;;
+  "provides")
+    # Update the cache
+    su_needed=true
+    command_args="-Fy"
+    execute_command "${@}"
 
-  su_needed=false
-  command_args="-F"
-elif [ "$command_args" = "installed" ]; then
-  command_args="-Q"
-elif [ "$command_args" = "install" ]; then
-  command_args="-S"
-  if [ "$command" = "pacman" ]; then
-    su_needed=true
-  fi
-elif [ "$command_args" = "update" ]; then
-  command_args="-Sy"
-  if [ "$command" = "pacman" ]; then
-    su_needed=true
-  fi
-elif [ "$command_args" = "upgradable" ]; then
-  command_args="-Qu"
-elif [ "$command_args" = "upgrade" ]; then
-  command_args="-Syu"
-  if [ "$command" = "pacman" ]; then
-    su_needed=true
-  fi
-elif [ "$command_args" = "remove" ]; then
-  command_args="-Rs"
-  if [ "$command" = "pacman" ]; then
-    su_needed=true
-  fi
-elif [ "$command_args" = "purge" ]; then
-  command_args="-Rns"
-  if [ "$command" = "pacman" ]; then
-    su_needed=true
-  fi
-elif [ "$more_arguments" = "true" ]; then
-  echo "Invalid command: \"$command $command_args\""
-  echo
-  echo "Usage: pman <command> [args...]"
-  echo "Available commands:"
-  echo "  yay (aur)  - yay              | invoke yay "
-  echo "               (aur packages - all the normal operations except config are available)"
-  echo "  aur (yay)  - yay              | same as \"yay\""
-  echo "  search     - pacman -Ss       | search packages"
-  echo "  provides   - pacman -F        | list packages that provide file"
-  echo "  installed  - pacman -Q        | list installed packages"
-  echo "  install    - pacman -S        | install packages"
-  echo "  update     - pacman -Sy       | updates the repositories"
-  echo "  upgradable - pacman -Qu       | list available upgrades"
-  echo "  upgrade    - pacman -Syu      | upgrades your system"
-  echo "  remove     - pacman -Rs       | remove packages & dependencies"
-  echo "  purge      - pacman -Rns      | remove packages, dependencies & conf"
-  echo "  config     - /etc/pacman.conf | edits pacman configuration"
-  exit 1
-fi
+    su_needed=false
+    command_args="-F"
+    ;;
+  "installed")
+    command_args="-Q"
+    ;;
+  "install")
+    command_args="-S"
+    if [ "$command" = "pacman" ]; then
+      su_needed=true
+    fi
+    ;;
+  "update")
+    command_args="-Sy"
+    if [ "$command" = "pacman" ]; then
+      su_needed=true
+    fi
+    ;;
+  "upgradable")
+    command_args="-Qu"
+    ;;
+  "upgrade")
+    command_args="-Syu"
+    if [ "$command" = "pacman" ]; then
+      su_needed=true
+    fi
+    ;;
+  "remove")
+    command_args="-Rs"
+    if [ "$command" = "pacman" ]; then
+      su_needed=true
+    fi
+    ;;
+  "purge")
+    command_args="-Rns"
+    if [ "$command" = "pacman" ]; then
+      su_needed=true
+    fi
+    ;;
+  *)
+    if [ "$more_arguments" = "true" ]; then
+      echo "Invalid command: \"$command $command_args\""
+      echo
+      echo "Usage: pman <command> [args...]"
+      echo "Available commands:"
+      echo "  yay (aur)  - yay              | invoke yay "
+      echo "               (aur packages - all the normal operations except config are available)"
+      echo "  aur (yay)  - yay              | same as \"yay\""
+      echo "  search     - pacman -Ss       | search packages"
+      echo "  provides   - pacman -F        | list packages that provide file"
+      echo "  installed  - pacman -Q        | list installed packages"
+      echo "  install    - pacman -S        | install packages"
+      echo "  update     - pacman -Sy       | updates the repositories"
+      echo "  upgradable - pacman -Qu       | list available upgrades"
+      echo "  upgrade    - pacman -Syu      | upgrades your system"
+      echo "  remove     - pacman -Rs       | remove packages & dependencies"
+      echo "  purge      - pacman -Rns      | remove packages, dependencies & conf"
+      echo "  config     - /etc/pacman.conf | edits pacman configuration"
+      exit 1
+    fi
+    ;;
+esac
 
 execute_command "${@}"