Automate libffi DLL bundling for PyInstaller on Windows

1 files changed, 10 insertions, 1 deletions

diff --git a/justfile b/justfile
index 478f4f3..d3fa021 100644
--- a/justfile
+++ b/justfile
@@ -8,5 +8,14 @@ gui:
 # Build the picostream GUI executable
 build-gui:
     uv pip install pyinstaller pyinstaller-hooks-contrib
-    uv run pyinstaller --onefile --windowed --name PicoStream picostream/main.py
+    FFI_FLAG := `uv run python -c '
+import sys, os, glob
+if sys.platform == "win32":
+    dlls_dir = os.path.join(os.path.dirname(sys.executable), "DLLs")
+    ffi_dll_path = next(glob.iglob(os.path.join(dlls_dir, "libffi-*.dll")), None)
+    if ffi_dll_path:
+        # The separator for --add-binary is platform-dependent (os.pathsep)
+        print(f"--add-binary \"{ffi_dll_path}{os.pathsep}.\"")
+'`
+    uv run pyinstaller --onefile --windowed --name PicoStream {{FFI_FLAG}} picostream/main.py