Cross compiling improvements + macOS universal binary (#1458)

* chore(resources): rename macos_arm64.txt to macos-arm64.txt
   This matches the platform-arch convention like many other parts of the project.
* chore(resources/cross): rename wasm.txt to unknown-wasm32.txt
* refactor(scripts/common.sh): use parameter expansion instead of if else
* feat(scripts/common.sh): support custom arch and platform for get_default_build_dir
* feat(scripts/build.sh): add --cross-platform, --cross-arch and --cross-file
* feat(scripts/package.sh): add --cross-platform and --cross-arch
* feat(build-packages.sh): add support for new options in build.sh and packages.sh
* ci(build): make arm64 binaries in CI
* ci(build): do not install external libraries
* ci(build): fix invalid artifact name
* ci(build): fix INSTALL_NAME
* ci(build): change name for macos artifacts
* ci(build): add script to build universal dmgs from individual dmgs
* ci(build): build universal dmgs
* fix(make-universal-binaries): fix wrong path for hdiutil
* ci(build): rename macos action
* fix(make-universal-binaries.sh): fix wrong pathname for ditto
* ci(release): build macos universal binaries
* ci(release): remove useless variables
* ci(release): fix wrong dependency
* ci(build): fix old ubuntu version
   This version will be restored once I complete some container-specific fixes.
* ci(build): make build_macos_universal depend on release
* ci(build): fix wrong dmg dir
* style(ci): capitalize 'universal' for CI name
* fix(make-universal-binaries.sh): fix truncated dmg name when it contains dots
* ci: styling changes
* ci(release): install appdmg only

scripts/package.sh

@@ -13,23 +13,25 @@ show_help() {
   echo
   echo "Available options:"
   echo
-  echo "-b --builddir DIRNAME     Sets the name of the build directory (not path)."
-  echo "                          Default: '$(get_default_build_dir)'."
-  echo "-d --destdir DIRNAME      Set the name of the package directory (not path)."
-  echo "                          Default: 'lite-xl'."
-  echo "-h --help                 Show this help and exit."
-  echo "-p --prefix PREFIX        Install directory prefix. Default: '/'."
-  echo "-v --version VERSION      Sets the version on the package name."
-  echo "-a --addons               Install 3rd party addons."
-  echo "   --debug                Debug this script."
-  echo "-A --appimage             Create an AppImage (Linux only)."
-  echo "-B --binary               Create a normal / portable package or macOS bundle,"
-  echo "                          depending on how the build was configured. (Default.)"
-  echo "-D --dmg                  Create a DMG disk image with AppDMG (macOS only)."
-  echo "-I --innosetup            Create a InnoSetup package (Windows only)."
-  echo "-r --release              Strip debugging symbols."
-  echo "-S --source               Create a source code package,"
-  echo "                          including subprojects dependencies."
+  echo "-b --builddir DIRNAME         Sets the name of the build directory (not path)."
+  echo "                              Default: '$(get_default_build_dir)'."
+  echo "-d --destdir DIRNAME          Set the name of the package directory (not path)."
+  echo "                              Default: 'lite-xl'."
+  echo "-h --help                     Show this help and exit."
+  echo "-p --prefix PREFIX            Install directory prefix. Default: '/'."
+  echo "-v --version VERSION          Sets the version on the package name."
+  echo "-a --addons                   Install 3rd party addons."
+  echo "   --debug                    Debug this script."
+  echo "-A --appimage                 Create an AppImage (Linux only)."
+  echo "-B --binary                   Create a normal / portable package or macOS bundle,"
+  echo "                              depending on how the build was configured. (Default.)"
+  echo "-D --dmg                      Create a DMG disk image with AppDMG (macOS only)."
+  echo "-I --innosetup                Create a InnoSetup package (Windows only)."
+  echo "-r --release                  Strip debugging symbols."
+  echo "-S --source                   Create a source code package,"
+  echo "                              including subprojects dependencies."
+  echo "   --cross-platform PLATFORM  The platform to package for."
+  echo "   --cross-arch ARCH          The architecture to package for."
   echo
 }
 
@@ -73,6 +75,9 @@ main() {
   local innosetup=false
   local release=false
   local source=false
+  local cross
+  local cross_arch
+  local cross_platform
 
   # store the current flags to easily pass them to appimage script
   local flags="$@"
@@ -143,6 +148,18 @@ main() {
         addons=true
         shift
         ;;
+      --cross-platform)
+        cross=true
+        cross_platform="$2"
+        shift
+        shift
+        ;;
+      --cross-arch)
+        cross=true
+        cross_arch="$2"
+        shift
+        shift
+        ;;
       --debug)
         set -x
         shift
@@ -159,6 +176,12 @@ main() {
 
   if [[ -n $1 ]]; then show_help; exit 1; fi
 
+  if [[ -n "$cross" ]]; then
+    platform="${cross_platform:-$platform}"
+    arch="${cross_arch:-$arch}"
+    build_dir="$(get_default_build_dir "$platform" "$arch")"
+  fi
+
   # The source package doesn't require a previous build,
   # nor the following install step, so run it now.
   if [[ $source == true ]]; then source_package "lite-xl$version-src"; fi