From 4e2a6b5219f469c4b05628a0133340ba2fa2d807 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Thu, 7 May 2015 13:25:04 +0200
Subject: Add implementation of  hash indexing of configurations

---
 scripts/utils.py | 96 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 92 insertions(+), 4 deletions(-)

(limited to 'scripts/utils.py')

diff --git a/scripts/utils.py b/scripts/utils.py
index 7f8e301..0c10553 100644
--- a/scripts/utils.py
+++ b/scripts/utils.py
@@ -1,8 +1,12 @@
 import os
 import sys
+import subprocess
+import time
+import hashlib
+import re
 from conf import conf
 from conf import sf
-from exceptions import MissingFile
+import exceptions
 
 def build_symbol_map():
 	"""Generates global variable smap from symbol_map_file.
@@ -14,17 +18,101 @@ def build_symbol_map():
 	except NameError:
 		# Check if symbol_map_file exist
 		if not os.path.isfile(sf(conf.symbol_map_file)):
-			raise MissingFile(sf(conf.symbol_map_file), "Run parse_kconfig to generate it.")
+			raise exceptions.MissingFile(sf(conf.symbol_map_file),
+					"Run parse_kconfig to generate it.")
 
 		smap = dict()
 		with open(sf(conf.symbol_map_file)) as f:
 			for lnn in f:
 				w = lnn.rstrip().split(sep=':')
-				smap[w[0]] = w[1]
-				
+				smap[int(w[0])] = w[1]
+
+
+def build_conf_map():
+	"""Generates global variable cmap from config_map_file and config_solved_file.
+	cmap is dictionary containing list ([configuration], bool solved)
+	cmap is rebuild every time this function is called.
+	"""
+	global cmap
+	cmap = dict()
+	if os.path.isfile(sf(conf.config_map_file)):
+		with open(sf(conf.config_map_file)) as f:
+			for ln in f:
+				w = ln.rstrip().split(sep=':')
+				cf = list()
+				for vr in w[1].split(sep=" "):
+					if vf[0] == '-':
+						cf.append(-1 * int(vf[1:]))
+					cf.append(int(vf))
+				cmap[w[0]] = [w[1], False]
+
+		if os.path.isfile(sf(conf.config_solved_file)):
+			with open(sf(conf.config_solved_file)) as f:
+				for ln in f:
+					try:
+						cmap[ln.rstrip()][1] = True
+					except KeyError:
+						pass
+
+
+def callsubprocess(process_name, process, show_output = True, regular = "",
+		env=os.environ):
+	try:
+		os.mkdir(sf(conf.log_folder))
+	except OSError:
+		pass
+
+	sprc = subprocess.Popen(process, stdout = subprocess.PIPE, env = env)
+
+	rtn = ""
+	with open(os.path.join(sf(conf.log_folder), process_name + ".log"), "a") as f:
+		f.write("::" + time.strftime("%y-%m-%d-%H-%M-%S") + "::\n")
+		for linen in sprc.stdout:
+			line = linen.decode(sys.getdefaultencoding())
+			f.write(line)
+			if show_output:
+				print(line, end="")
+			if re.search(regular, line):
+				rtn += line
+
+	rtncode = sprc.wait()
+	if rtncode != 0:
+		raise exceptions.ProcessFailed(process, rtncode)
+
+	return rtn
+
 def get_kernel_env():
 	env = dict(os.environ)
 	env['SRCARCH'] = conf.SRCARCH
 	env['ARCH'] = conf.ARCH
 	env['KERNELVERSION'] = 'KERNELVERSION' # hides error
 	return env
+
+
+def hash_config(cf):
+	"""Hashes configuration using MD5 hash.
+	"""
+	try:
+		cf.remove(0)
+	except ValueError:
+		pass
+	str = ""
+	for c in cf:
+		if c < 0:
+			str += '-'
+		else:
+			str += '+'
+	hsh = hashlib.md5(bytes(str, sys.getdefaultencoding()))
+	return hsh.hexdigest()
+
+def config_strtoint(str):
+	"""Reads list of configured symbols from string
+	"""
+	rtn = []
+	for s in str.split(sep=' '):
+		rtn.append(int(s))
+	try:
+		rtn.remove(0)
+	except ValueError:
+		pass
+	return rtn
-- 
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