From bf25cc84127fcc18707ac5b2422087deff5bf3bd Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Fri, 5 Jun 2020 16:17:06 -0500
Subject: [PATCH] Add a script to id configs

---
 buildroot/share/scripts/config-labels.py | 201 +++++++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100755 buildroot/share/scripts/config-labels.py

diff --git a/buildroot/share/scripts/config-labels.py b/buildroot/share/scripts/config-labels.py
new file mode 100755
index 000000000..8effb54ee
--- /dev/null
+++ b/buildroot/share/scripts/config-labels.py
@@ -0,0 +1,201 @@
+#!/usr/bin/env python
+#
+# for python3.5 or higher
+#-----------------------------------
+# Within Marlin project MarlinFirmware/Configurations, this program visits all folders
+# under .../config/examples/*, processing each Configuration.h, Configuration_adv.h,
+# _Bootscreen.h, and _Statusscreen.h, to insert:
+#    #define CONFIG_EXAMPLES_DIR "examples/<style>/<vendor>/<model>"
+# ... or similar path leading to this file.
+#
+# Warning: The program modifies files in place, so be sure to back them up first if needed.
+# Can be run multiple times if needed. Only modifies files which don't have
+# correct #define CONFIG_EXAMPLES_DIR line.
+#
+# Invocation:
+#-------------
+# 1. Change directory to your MarlinFirmware/Configurations working copy
+# 2. python3 config-labels.py
+#
+#-----------------------------------
+# 2020-05-10 GMW original
+# 2020-06-05 SRL style tweaks
+#-----------------------------------
+#
+import sys
+import os
+from pathlib import Path
+from distutils.dir_util import copy_tree  # for copy_tree, because shutil.copytree can't handle existing files, dirs
+
+# Modify input_examples_dir and output_examples_dir for your installation
+# No trailing slash
+# Setting output_examples_dir = input_examples_dir causes the program to insert into the existing files.
+
+input_examples_dir = r'config/examples'
+# output_examples_dir   = input_examples_dir
+output_examples_dir = r'config/examples'
+
+#-------------------------------------
+
+files_to_mod = ['Configuration.h', 'Configuration_adv.h', '_Bootscreen.h', '_Statusscreen.h']
+
+macro_name     = 'CONFIG_EXAMPLES_DIR'
+def_macro_name = '#define ' + macro_name
+
+filenum = 0
+different_out_dir = not (output_examples_dir == input_examples_dir)
+
+#----------------------------------------------
+def process_file(subdir: str, filename: str):
+#----------------------------------------------
+	global filenum
+	filenum += 1
+
+	print(str(filenum) + '  ' + filename + ':  ' + subdir)
+
+	def_line = (def_macro_name + ' "'  + subdir.replace('\\', '/')  + '"')
+
+	#------------------------
+	# Read file
+	#------------------------
+	lines = []
+	infilepath = os.path.join(input_examples_dir, subdir, filename)
+	try:
+		# UTF-8 because some files contain unicode chars
+		with open(infilepath, 'rt', encoding="utf-8") as infile:
+			lines = infile.readlines()
+
+	except Exception as e:
+		print('Failed to read file: ' + str(e) )
+		raise Exception
+
+	lines = [line.rstrip('\r\n') for line in lines]
+
+	#------------------------
+	# Process lines
+	#------------------------
+	file_modified    = False
+
+	# region state machine
+	# -1 = before pragma once;
+	# 0 = region to place define;
+	# 1 = past region to place define
+	region      = -1
+
+	outlines = []
+	for line in lines:
+		outline = line
+
+		if (region == -1) and (def_macro_name in line):
+			outline       = None
+			file_modified = True
+
+		elif (region == -1) and ('pragma once' in line):
+			region = 0
+
+		elif (region == 0):
+			if (line.strip() == ''):
+				pass
+			elif (def_macro_name in line):
+				region = 1
+				if line == def_line:   # leave it as is
+					pass
+				else:
+					outline       = def_line
+					file_modified = True
+			else: # some other string
+				outlines.append(def_line)
+				outlines.append('')
+				region = 1
+				file_modified = True
+
+		elif (region == 1):
+			if (def_macro_name in line):
+				outline       = None
+				file_modified = True
+			else:
+				pass
+
+		# end if
+		if outline is not None:
+			outlines.append(outline)
+	# end for
+
+	#-------------------------
+	#     Output file
+	#-------------------------
+	outdir      = os.path.join(output_examples_dir, subdir)
+	outfilepath = os.path.join(outdir, filename)
+
+	if file_modified:
+		# Note: no need to create output dirs, as the initial copy_tree
+		# will do that.
+
+		print('  writing ' + str(outfilepath))
+		try:
+			# Preserve unicode chars; Avoid CR-LF on Windows.
+			with open(outfilepath, "w", encoding="utf-8", newline='\n') as outfile:
+				outfile.write("\n".join(outlines))
+				outfile.write("\n")
+
+		except Exception as e:
+			print('Failed to write file: ' + str(e) )
+			raise Exception
+	else:
+		print('  no change for ' + str(outfilepath))
+
+#----------
+def main():
+#----------
+	global filenum
+	global input_examples_dir
+	global output_examples_dir
+	filenum = 0
+
+	#--------------------------------
+	# Check for requirements
+	#--------------------------------
+	input_examples_dir  = input_examples_dir.strip()
+	input_examples_dir  = input_examples_dir.rstrip('\\/')
+	output_examples_dir = output_examples_dir.strip()
+	output_examples_dir = output_examples_dir.rstrip('\\/')
+
+	for dir in [input_examples_dir, output_examples_dir]:
+		if not (os.path.exists(dir)):
+			print('Directory not found: ' + dir)
+			sys.exit(1)
+
+	#--------------------------------
+	# Copy tree if necessary.
+	#--------------------------------
+	# This includes files that are not otherwise included in the
+	# insertion of the define statement.
+	#
+	if different_out_dir:
+		print('Copying files to new directory: ' + output_examples_dir)
+		try:
+			copy_tree(input_examples_dir, output_examples_dir)
+		except Exception as e:
+			print('Failed to copy directory: ' + str(e) )
+			raise Exception
+
+	#-----------------------------
+	# Find and process files
+	#-----------------------------
+	len_input_examples_dir = len(input_examples_dir);
+	len_input_examples_dir += 1
+
+	for filename in files_to_mod:
+		input_path = Path(input_examples_dir)
+		filepathlist = input_path.rglob(filename)
+
+		for filepath in filepathlist:
+			fulldirpath = str(filepath.parent)
+			subdir      = fulldirpath[len_input_examples_dir:]
+
+			process_file(subdir, filename)
+
+#==============
+print('--- Starting config-labels ---')
+main()
+print('--- Done ---')