From a54154e760c0e3012b7841b317b277353174354d Mon Sep 17 00:00:00 2001
From: Scott Lahteine <thinkyhead@users.noreply.github.com>
Date: Fri, 22 Jan 2021 20:51:58 -0600
Subject: [PATCH] =?UTF-8?q?=F0=9F=9B=A0=20Replace=20lib=5Fdeps=20for=20cus?=
 =?UTF-8?q?tom=5Fmarlin.FEATURE=20(#20858)?=
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---
 .../PlatformIO/scripts/common-dependencies.py | 23 ++++++++++++-------
 platformio.ini                                |  2 +-
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/buildroot/share/PlatformIO/scripts/common-dependencies.py b/buildroot/share/PlatformIO/scripts/common-dependencies.py
index 2f4ad3e502..4b8c339d46 100644
--- a/buildroot/share/PlatformIO/scripts/common-dependencies.py
+++ b/buildroot/share/PlatformIO/scripts/common-dependencies.py
@@ -69,16 +69,23 @@ def add_to_feat_cnf(feature, flines):
 	except:
 		FEATURE_CONFIG[feature] = {}
 
+	# Get a reference to the FEATURE_CONFIG under construction
 	feat = FEATURE_CONFIG[feature]
-	atoms = re.sub(',\\s*', '\n', flines).strip().split('\n')
-	for dep in atoms:
-		parts = dep.split('=')
+
+	# Split up passed lines on commas or newlines and iterate
+	# Add common options to the features config under construction
+	# For lib_deps replace a previous instance of the same library
+	atoms = re.sub(r',\\s*', '\n', flines).strip().split('\n')
+	for line in atoms:
+		parts = line.split('=')
 		name = parts.pop(0)
-		rest = '='.join(parts)
 		if name in ['build_flags', 'extra_scripts', 'src_filter', 'lib_ignore']:
-			feat[name] = rest
+			feat[name] = '='.join(parts)
 		else:
-			feat['lib_deps'] += [dep]
+			for dep in line.split(','):
+				lib_name = re.sub(r'([@~^=]|[<>]=?)[\d.]+', '', dep.strip()).split('=').pop(0)
+				lib_re = re.compile('(?!^' + lib_name + '\\b)')
+				feat['lib_deps'] = list(filter(lib_re.match, feat['lib_deps'])) + [dep]
 
 def load_config():
 	config = configparser.ConfigParser()
@@ -185,8 +192,8 @@ def apply_features_config():
 			blab("Adding src_filter for %s... " % feature)
 			src_filter = ' '.join(env.GetProjectOption('src_filter'))
 			# first we need to remove the references to the same folder
-			my_srcs = re.findall( r'[+-](<.*?>)', feat['src_filter'])
-			cur_srcs = re.findall( r'[+-](<.*?>)', src_filter)
+			my_srcs = re.findall(r'[+-](<.*?>)', feat['src_filter'])
+			cur_srcs = re.findall(r'[+-](<.*?>)', src_filter)
 			for d in my_srcs:
 				if d in cur_srcs:
 					src_filter = re.sub(r'[+-]' + d, '', src_filter)
diff --git a/platformio.ini b/platformio.ini
index 6b1543fa53..822f1df8d1 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -404,7 +404,7 @@ BEZIER_CURVE_SUPPORT    = src_filter=+<src/module/planner_bezier.cpp> +<src/gcod
 PRINTCOUNTER            = src_filter=+<src/module/printcounter.cpp>
 HAS_BED_PROBE           = src_filter=+<src/module/probe.cpp> +<src/gcode/probe/G30.cpp> +<src/gcode/probe/M401_M402.cpp> +<src/gcode/probe/M851.cpp>
 IS_SCARA                = src_filter=+<src/module/scara.cpp>
-HAS_SERVOS              = src_filter=+<src/module/servo.cpp> +<src/gcode/control/M280.cpp> 
+HAS_SERVOS              = src_filter=+<src/module/servo.cpp> +<src/gcode/control/M280.cpp>
 MORGAN_SCARA            = src_filter=+<src/gcode/scara>
 HAS_MICROSTEPS          = src_filter=+<src/gcode/control/M350_M351.cpp>
 (ESP3D_)?WIFISUPPORT    = AsyncTCP, ESP Async WebServer