perf: install env checks

script/install.d/22-gh.sh

@@ -6,22 +6,25 @@
 #
 
 if ! command -v gh &>/dev/null; then
-    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
-        if command -v apt-get >/dev/null 2>&1; then
+    case "$DOTS_PKG" in
+        apt)
             # https://github.com/cli/cli/blob/trunk/docs/install_linux.md#debian-ubuntu-linux-raspberry-pi-os-apt
             sudo mkdir -p -m 755 /etc/apt/keyrings && wget -qO- https://cli.github.com/packages/githubcli-archive-keyring.gpg | sudo tee /etc/apt/keyrings/githubcli-archive-keyring.gpg >/dev/null &&
                 sudo chmod go+r /etc/apt/keyrings/githubcli-archive-keyring.gpg &&
                 echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | sudo tee /etc/apt/sources.list.d/github-cli.list >/dev/null &&
                 sudo apt-get update -qq &&
                 sudo apt-get install -qq gh
-        elif command -v pacman >/dev/null 2>&1; then
+            ;;
+        pacman)
             sudo pacman -S --noconfirm github-cli
-        else
+            ;;
+        brew)
+            brew install gh
+            ;;
+        *)
             log_warn "Skipping GitHub CLI install: no supported package manager found"
-        fi
-    elif [[ "$OSTYPE" == "darwin"* ]]; then
-        brew install gh
-    fi
+            ;;
+    esac
 fi
 
 gh --version