update-alternatives

install.sh

@@ -38,13 +38,44 @@ function install_ghostty {
 }
 
 function install_homebrew {
-  :
+
+  bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+}
+
+function raise_error {
+  message=${1:-an undefined error has occured!}
+  code=${2:-1}
+  echo "error ${code}: ${message}" >&2
+  exit ${code}
+}
+
+function set_alternative {
+  local key=$1
+  [[ -f /etc/alternatives/$key ]] || raise_error "alternative <${key}> not found!" 11
+
+  local path_to_key=$(readlink -f /usr/bin/$key)
+
+  local command=$2
+  local path_to_command=$(command -v "${command}")
+
+  if [[ "${path_to_key}" != "${path_to_command}" ]]; then
+    sudo -vp 'sudo for update-alternatives: '
+    sudo update-alternatives --install /usr/bin/${key} ${key} ${path_to_command} 100
+    sudo update-alternatives --set ${key} ${path_to_command}
+  else
+    echo "alternative ${key} => ${command}"
+  fi
+
 }
 
 function configure_default {
-  # CAPS LOCK means ESC
+  # CAPS LOCK means ESC()
   gsettings set org.gnome.desktop.input-sources xkb-options "['caps:escape']"
 
+  set_alternative editor nvim
+  set_alternative vi nvim
+  set_alternative vim nvim
+
 }
 ## MAIN
 
@@ -54,6 +85,6 @@ assert_gnome_desktop
 echo "MIAOU-DESKTOP installation..."
 
 install_ghostty
-install_homebrew
+# install_homebrew
 configure_default
 echo SUCCESS