patch radiolib on-the-fly while building.

bin/apply_patches.py

@@ -0,0 +1,27 @@
+from os.path import join, isfile
+
+Import("env")
+
+LIBRARY_DIR = join (env["PROJECT_LIBDEPS_DIR"], env["PIOENV"], "RadioLib")
+patchflag_path = join(LIBRARY_DIR, ".patching-done")
+patch = join(env["PROJECT_DIR"], "bin", "patch_ng.py")
+
+# patch file only if we didn't do it before
+if not isfile(join(LIBRARY_DIR, ".patching-done")):
+    original_path = join(LIBRARY_DIR)
+    patch_file = join(env["PROJECT_DIR"], "patches", "0001-RadioLib-SPItransfer-virtual.patch")
+
+    assert isfile(patch_file)
+
+    env.Execute(
+        env.VerboseAction(
+            "$PYTHONEXE %s -p 1 --directory=%s %s" % (patch, original_path, patch_file)
+           ,  "Applying patch to RadioLib"
+        )
+    )
+
+    def _touch(path):
+        with open(path, "w") as fp:
+            fp.write("")
+
+    env.Execute(lambda *args, **kwargs: _touch(patchflag_path))

patches/0001-RadioLib-SPItransfer-virtual.patch

@@ -0,0 +1,12 @@
+index 3a7b098..2492c1a 100644
+--- a/src/Module.h
++++ b/src/Module.h
+@@ -190,7 +190,7 @@ class Module {
+ 
+       \param numBytes Number of bytes to transfer.
+     */
+-    void SPItransfer(uint8_t cmd, uint8_t reg, uint8_t* dataOut, uint8_t* dataIn, uint8_t numBytes);
++    virtual void SPItransfer(uint8_t cmd, uint8_t reg, uint8_t* dataOut, uint8_t* dataIn, uint8_t numBytes);
+ 
+     // pin number access methods
+ 

platformio.ini

@@ -93,6 +93,10 @@ build_src_filter =
   ${arduino_base.build_src_filter} -<nrf52/>
 upload_speed = 921600
 debug_init_break = tbreak setup
+extra_scripts =
+  ${env.extra_scripts}
+  pre:bin/apply_patches.py
+
 # Remove -DMYNEWT_VAL_BLE_HS_LOG_LVL=LOG_LEVEL_CRITICAL for low level BLE logging.
 # See library directory for BLE logging possible values: .pio/libdeps/tbeam/NimBLE-Arduino/src/log_common/log_common.h
 # This overrides the BLE logging default of LOG_LEVEL_INFO (1) from: .pio/libdeps/tbeam/NimBLE-Arduino/src/esp_nimble_cfg.h
@@ -144,6 +148,9 @@ build_src_filter =
   ${arduino_base.build_src_filter} -<esp32/> -<nimble/> -<mesh/wifi/> -<mesh/http/> -<modules/esp32> -<mqtt/>
 lib_ignore =
   BluetoothOTA
+extra_scripts =
+  ${env.extra_scripts}
+  pre:bin/apply_patches.py
 
 [nrf52840_base]
 extends = nrf52_base