fbt fixes & improvements (#1490)

* fbt: minimal USB flash mode; scripts: faster storage.py with larger chunks
* fbt: fixed creation of temporary file nodes confusing scons
* docs: removed refs to --with-updater
* fbt: removed splashscreen from minimal update package
* fbt: renamed dist arguments for consistency
* docs: fixed updater_debug target
* fbt: separate target for generating compilation_database.json without building the code.
* fbt: added `jflash` target for programming over JLink probe; refactored usb flashing targets
* fbt: building updater_app in unit_tests configuration
* fbt: fixed reset behavior after flashing with J-Link
* fbt: generating .map file for firmware binary & external apps
* fbt/core: moved library contents before apps code

Co-authored-by: あく <alleteam@gmail.com>

site_scons/site_tools/fbt_dist.py

@@ -66,9 +66,38 @@ def AddOpenOCDFlashTarget(env, targetenv, **kw):
         **kw,
     )
     env.Alias(targetenv.subst("${FIRMWARE_BUILD_CFG}_flash"), openocd_target)
+    if env["FORCE"]:
+        env.AlwaysBuild(openocd_target)
     return openocd_target
 
 
+def AddJFlashTarget(env, targetenv, **kw):
+    jflash_target = env.JFlash(
+        "#build/jflash-${BUILD_CFG}-flash.flag",
+        targetenv["FW_BIN"],
+        JFLASHADDR=targetenv.subst("$IMAGE_BASE_ADDRESS"),
+        BUILD_CFG=targetenv.subst("${FIRMWARE_BUILD_CFG}"),
+        **kw,
+    )
+    env.Alias(targetenv.subst("${FIRMWARE_BUILD_CFG}_jflash"), jflash_target)
+    if env["FORCE"]:
+        env.AlwaysBuild(jflash_target)
+    return jflash_target
+
+
+def AddUsbFlashTarget(env, file_flag, extra_deps, **kw):
+    usb_update = env.UsbInstall(
+        file_flag,
+        (
+            env["DIST_DEPENDS"],
+            *extra_deps,
+        ),
+    )
+    if env["FORCE"]:
+        env.AlwaysBuild(usb_update)
+    return usb_update
+
+
 def DistCommand(env, name, source, **kw):
     target = f"dist_{name}"
     command = env.Command(
@@ -86,6 +115,8 @@ def generate(env):
     env.AddMethod(AddFwProject)
     env.AddMethod(DistCommand)
     env.AddMethod(AddOpenOCDFlashTarget)
+    env.AddMethod(AddJFlashTarget)
+    env.AddMethod(AddUsbFlashTarget)
 
     env.SetDefault(
         COPRO_MCU_FAMILY="STM32WB5x",