simplify circuitpy_mpconfig with enable-if-any, -all

and make corresponding simplifications in shared-bindings-matrix,
but directly using the final defines from CFLAGS instead of the
status quo.

The net changes are to disable audiocore & audiomixer on some espressif
devices that have no audio output at all. Other than that, the
shared-bindings-matrix seems to be identical.

docs/shared_bindings_matrix.py

@@ -148,50 +148,21 @@ def get_board_mapping():
     return boards
 
 
-def read_mpconfig():
-    """Open 'circuitpy_mpconfig.mk' and return the contents."""
-    configs = []
-    cpy_mpcfg = get_circuitpython_root_dir() / "py" / "circuitpy_mpconfig.mk"
-    with open(cpy_mpcfg) as mpconfig:
-        configs = mpconfig.read()
-
-    return configs
-
-
 def build_module_map():
     """Establish the base of the JSON file, based on the contents from
-    `configs`. Base will contain module names, if they're part of
+    `configs`. Base contains the module name and the controlling C macro name.
-    the `FULL_BUILD`, or their default value (0, 1, or a list of
-    modules that determine default [see audiocore, audiomixer, etc.]).
-
     """
     base = dict()
     modules = get_bindings()
-    configs = read_mpconfig()
-    full_build = False
     for module in modules:
         full_name = module
         if module in ADDITIONAL_MODULES:
             search_identifier = ADDITIONAL_MODULES[module]
         else:
             search_identifier = "CIRCUITPY_" + module.lstrip("_").upper()
-        re_pattern = f"{re.escape(search_identifier)}\s*\??=\s*(.+)"
-        find_config = re.findall(re_pattern, configs)
-        if not find_config:
-            continue
-        find_config = ", ".join([x.strip("$()") for x in find_config])
-
-        full_build = int("CIRCUITPY_FULL_BUILD" in find_config)
-        if not full_build:
-            default_val = find_config
-        else:
-            default_val = "None"
 
         base[module] = {
             "name": full_name,
-            "full_build": str(full_build),
-            "default_value": default_val,
-            "excluded": {},
             "key": search_identifier,
         }
 
@@ -199,15 +170,14 @@ def build_module_map():
 
 
 def get_settings_from_makefile(port_dir, board_name):
-    """Invoke make in a mode which prints the database, then parse it for
+    """Invoke make to print the value of critical build settings
-    settings.
 
     This means that the effect of all Makefile directives is taken
     into account, without having to re-encode the logic that sets them
     in this script, something that has proved error-prone
     """
     contents = subprocess.run(
-        ["make", "-C", port_dir, f"BOARD={board_name}", "-qp", "print-CC"],
+        ["make", "-C", port_dir, "-f", "Makefile", f"BOARD={board_name}", "print-CFLAGS", "print-CIRCUITPY_BUILD_EXTENSIONS", "print-FROZEN_MPY_DIRS"],
         encoding="utf-8",
         errors="replace",
         stdout=subprocess.PIPE,
@@ -223,9 +193,10 @@ def get_settings_from_makefile(port_dir, board_name):
 
     settings = {}
     for line in contents.stdout.split("\n"):
-        # Handle both = and := definitions.
+        if line.startswith('CFLAGS ='):
-        m = re.match(r"^([A-Z][A-Z0-9_]*) :?= (.*)$", line)
+            for m in re.findall('-D([A-Z][A-Z0-9_]*)=(\d+)', line):
-        if m:
+                settings[m[0]] = m[1]
+        elif m := re.match(r"^([A-Z][A-Z0-9_]*) = (.*)$", line):
             settings[m.group(1)] = m.group(2)
 
     return settings
@@ -280,7 +251,7 @@ def frozen_modules_from_dirs(frozen_mpy_dirs, withurl):
     """
     frozen_modules = []
     for frozen_path in filter(lambda x: x, frozen_mpy_dirs.split(" ")):
-        source_dir = get_circuitpython_root_dir() / frozen_path[7:]
+        source_dir = get_circuitpython_root_dir() / frozen_path[6:]
         url_repository = get_repository_url(source_dir)
         for sub in source_dir.glob("*"):
             if sub.name in FROZEN_EXCLUDES:

ports/espressif/mpconfigport.mk

@@ -14,7 +14,6 @@ CIRCUITPY_FULL_BUILD ?= 1
 CIRCUITPY_ALARM ?= 1
 CIRCUITPY_ANALOGBUFIO ?= 1
 CIRCUITPY_AUDIOBUSIO ?= 1
-CIRCUITPY_AUDIOBUSIO_I2SOUT ?= 1
 CIRCUITPY_AUDIOBUSIO_PDMIN ?= 0
 CIRCUITPY_AUDIOIO ?= 0
 CIRCUITPY_AUDIOMP3 ?= 0

py/circuitpy_mpconfig.mk

@@ -26,6 +26,18 @@
 # Boards default to all modules enabled (with exceptions)
 # Manually disable by overriding in #mpconfigboard.mk
 
+enable-if-any=$(lastword $(sort $(1) 0))
+enable-if-all=$(firstword $(sort $(1) 1))
+
+#$(info enable-if-any 0 1 -> $(call enable-if-any,0 1))
+#$(info enable-if-any 1 0 -> $(call enable-if-any,1 0))
+#$(info enable-if-any 1 1 -> $(call enable-if-any,1 1))
+#$(info enable-if-any 0 0 -> $(call enable-if-any,0 0))
+#$(info enable-if-all 0 1 -> $(call enable-if-all,0 1))
+#$(info enable-if-all 1 0 -> $(call enable-if-all,1 0))
+#$(info enable-if-all 1 1 -> $(call enable-if-all,1 1))
+#$(info enable-if-all 0 0 -> $(call enable-if-all,0 0))
+
 # Always on. Present here to help generate documentation module support matrix for "builtins".
 CIRCUITPY = 1
 CFLAGS += -DCIRCUITPY=$(CIRCUITPY)
@@ -95,13 +107,7 @@ CFLAGS += -DCIRCUITPY_AUDIOIO=$(CIRCUITPY_AUDIOIO)
 CIRCUITPY_AUDIOPWMIO ?= 0
 CFLAGS += -DCIRCUITPY_AUDIOPWMIO=$(CIRCUITPY_AUDIOPWMIO)
 
-ifndef CIRCUITPY_AUDIOCORE
+CIRCUITPY_AUDIOCORE ?= $(call enable-if-any,$(CIRCUITPY_AUDIOPWMIO) $(CIRCUITPY_AUDIOIO) $(CIRCUITPY_AUDIOBUSIO))
-ifeq ($(CIRCUITPY_AUDIOPWMIO),1)
-CIRCUITPY_AUDIOCORE = $(CIRCUITPY_AUDIOPWMIO)
-else
-CIRCUITPY_AUDIOCORE = $(CIRCUITPY_AUDIOIO)
-endif
-endif
 CFLAGS += -DCIRCUITPY_AUDIOCORE=$(CIRCUITPY_AUDIOCORE)
 
 CIRCUITPY_AUDIOMIXER ?= $(CIRCUITPY_AUDIOCORE)
@@ -112,13 +118,7 @@ CIRCUITPY_AUDIOCORE_DEBUG ?= 0
 endif
 CFLAGS += -DCIRCUITPY_AUDIOCORE_DEBUG=$(CIRCUITPY_AUDIOCORE_DEBUG)
 
-ifndef CIRCUITPY_AUDIOMP3
+CIRCUITPY_AUDIOMP3 ?= $(call enable-if-all,$(CIRCUITPY_FULL_BUILD) $(CIRCUITPY_AUDIOCORE))
-ifeq ($(CIRCUITPY_FULL_BUILD),1)
-CIRCUITPY_AUDIOMP3 = $(CIRCUITPY_AUDIOCORE)
-else
-CIRCUITPY_AUDIOMP3 = 0
-endif
-endif
 CFLAGS += -DCIRCUITPY_AUDIOMP3=$(CIRCUITPY_AUDIOMP3)
 
 CIRCUITPY_BINASCII ?= $(CIRCUITPY_FULL_BUILD)
@@ -200,15 +200,9 @@ endif
 CFLAGS += -DCIRCUITPY_PARALLELDISPLAY=$(CIRCUITPY_PARALLELDISPLAY)
 
 # bitmaptools and framebufferio rely on displayio
-ifeq ($(CIRCUITPY_DISPLAYIO),1)
+CIRCUITPY_BITMAPTOOLS ?= $(call enable-if-all,$(CIRCUITPY_FULL_BUILD) $(CIRCUITPY_DISPLAYIO))
-CIRCUITPY_BITMAPTOOLS ?= $(CIRCUITPY_FULL_BUILD)
+CIRCUITPY_FRAMEBUFFERIO ?= $(call enable-if-all,$(CIRCUITPY_FULL_BUILD) $(CIRCUITPY_DISPLAYIO))
-CIRCUITPY_FRAMEBUFFERIO ?= $(CIRCUITPY_FULL_BUILD)
+CIRCUITPY_VECTORIO ?= $(CIRCUITPY_DISPLAYIO)
-CIRCUITPY_VECTORIO ?= 1
-else
-CIRCUITPY_BITMAPTOOLS ?= 0
-CIRCUITPY_FRAMEBUFFERIO ?= 0
-CIRCUITPY_VECTORIO ?= 0
-endif
 CFLAGS += -DCIRCUITPY_BITMAPTOOLS=$(CIRCUITPY_BITMAPTOOLS)
 CFLAGS += -DCIRCUITPY_FRAMEBUFFERIO=$(CIRCUITPY_FRAMEBUFFERIO)
 CFLAGS += -DCIRCUITPY_VECTORIO=$(CIRCUITPY_VECTORIO)
@@ -255,12 +249,7 @@ CFLAGS += -DCIRCUITPY_FUTURE=$(CIRCUITPY_FUTURE)
 CIRCUITPY_GETPASS ?= $(CIRCUITPY_FULL_BUILD)
 CFLAGS += -DCIRCUITPY_GETPASS=$(CIRCUITPY_GETPASS)
 
-ifeq ($(CIRCUITPY_DISPLAYIO),1)
+CIRCUITPY_GIFIO ?= $(call enable-if-any,$(CIRCUITPY_DISPLAYIO) $(CIRCUITPY_CAMERA))
-#CIRCUITPY_GIFIO ?= $(CIRCUITPY_CAMERA)
-CIRCUITPY_GIFIO ?= 1
-else
-CIRCUITPY_GIFIO ?= 0
-endif
 CFLAGS += -DCIRCUITPY_GIFIO=$(CIRCUITPY_GIFIO)
 
 CIRCUITPY_GNSS ?= 0
@@ -468,10 +457,7 @@ CFLAGS += -DCIRCUITPY_SYS=$(CIRCUITPY_SYS)
 CIRCUITPY_TERMINALIO ?= $(CIRCUITPY_DISPLAYIO)
 CFLAGS += -DCIRCUITPY_TERMINALIO=$(CIRCUITPY_TERMINALIO)
 
-ifeq ($(CIRCUITPY_DISPLAYIO),1)
+CIRCUITPY_FONTIO ?= $(call enable-if-all,$(CIRCUITPY_DISPLAYIO) $(CIRCUITPY_TERMINALIO))
-CIRCUITPY_FONTIO ?= $(CIRCUITPY_TERMINALIO)
-endif
-CFLAGS += -DCIRCUITPY_FONTIO=$(CIRCUITPY_FONTIO)
 
 CIRCUITPY_TIME ?= 1
 CFLAGS += -DCIRCUITPY_TIME=$(CIRCUITPY_TIME)