Attempt to improve dependency messaging

bin/breezy_kwin_setup

@@ -20,6 +20,19 @@ check_command() {
 
 check_command "curl"
 
+print_missing_dependencies() {
+  echo ""
+  printf "\n\033[1;31mMissing required components\033[0m\n"
+  echo ""
+  echo "Install the corresponding packages with your package manager, then rerun this setup:"
+  echo "  Debian/Ubuntu: sudo apt-get update && sudo apt-get install -y extra-cmake-modules kf6-kconfig-dev kf6-kconfigwidgets-dev kf6-kcoreaddons-dev kf6-kcmutils-dev"
+  echo "  Fedora/RHEL:   sudo dnf install -y extra-cmake-modules kf6-kconfig kf6-kconfigwidgets kf6-kcoreaddons kf6-kcmutils"
+  echo "  Arch:  sudo pacman -S --needed extra-cmake-modules kf6"
+  echo ""
+  printf "\n\033[1;33mIf you continue to see this issue\033[0m run with PRINT_FULL_STDERR=1 and attach the full output to a bug report.\n"
+  exit 1
+}
+
 ARCH=$(uname -m)
 if [ -f /etc/os-release ]; then
   . /etc/os-release
@@ -59,6 +72,8 @@ then
     curl -L "$binary_download_url" -o "$FILE_NAME"
   else
     check_command "git"
+    check_command "cmake"
+    check_command "make"
 
     # handle -v / --tag like the rest of the script
     if [ "$1" = "--tag" ] && [ -n "$2" ]; then
@@ -79,21 +94,42 @@ then
       exit 1
     fi
 
-    echo "Cloning wheaney/breezy-desktop (tag: ${tag})"
-    if git clone --depth 1 --branch "$tag" "https://github.com/wheaney/breezy-desktop.git" breezy-desktop 2>/dev/null; then
-      pushd breezy-desktop > /dev/null
+    if [ -z "${DEV_BUILD+x}" ]; then
+      echo "Cloning wheaney/breezy-desktop (tag: ${tag})"
+      if git clone --depth 1 --branch "$tag" "https://github.com/wheaney/breezy-desktop.git" breezy-desktop 2>/dev/null; then
+        pushd breezy-desktop > /dev/null
+      else
+        git clone "https://github.com/wheaney/breezy-desktop.git" breezy-desktop
+        pushd breezy-desktop > /dev/null
+        git checkout "$tag"
+      fi
+
+      echo "Downloading git submodules"
+      git submodule sync --recursive || true
+      git submodule update --init modules/XRLinuxDriver
+      git submodule update --init ui/modules/PyXRLinuxDriverIPC
     else
-      git clone "https://github.com/wheaney/breezy-desktop.git" breezy-desktop
-      pushd breezy-desktop > /dev/null
-      git checkout "$tag"
+      pushd $start_dir > /dev/null
     fi
 
-    echo "Downloading git submodules"
-    git submodule sync --recursive || true
-    git submodule update --init --recursive modules/XRLinuxDriver
-    git submodule update --init --recursive ui/modules/PyXRLinuxDriverIPC
-
-    LOCAL_BUILD_SYSTEM=1 bin/package_kwin --download-driver
+    echo "Building Breezy Desktop from source, this may take a while..."
+    set +e
+    pkgkwin_stderr=$(LOCAL_BUILD_SYSTEM=1 bin/package_kwin --download-driver 2>&1)
+    pkgkwin_rc=$?
+    set -e
+    if echo "$pkgkwin_stderr" | grep -q "Could NOT find"; then
+      if [ -z "${PRINT_FULL_STDERR+x}" ]; then
+        print_missing_dependencies
+        exit 1
+      else
+        echo "$pkgkwin_stderr"
+      fi
+    fi
+    if [ "$pkgkwin_rc" -ne 0 ]; then
+      echo "$pkgkwin_stderr"
+      echo "Error: build failed with exit code $pkgkwin_rc"
+      exit $pkgkwin_rc
+    fi
     FILE_NAME="breezyKWin-$ARCH.tar.gz"
     cp "out/$FILE_NAME" "$tmp_dir"
     popd > /dev/null