From 86eb35073eaf733db725647eb7429da22d4d365a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Wed, 6 May 2015 21:18:38 +0200
Subject: Add generation of all solutions in initialization phase

---
 conf.py               |  1 +
 scripts/exceptions.py |  6 ++++++
 scripts/initialize.py |  7 +++++--
 scripts/solution.py   | 18 +++++++++++-------
 4 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/conf.py b/conf.py
index c68d3bb..5784742 100644
--- a/conf.py
+++ b/conf.py
@@ -5,6 +5,7 @@ SRCARCH = 'x86' # Kernel architecture
 ARCH = SRCARCH
 linux_make_args = ['-j8']
 novaboot_args = ['--qemu=qemu-system-x86_64']
+gen_all_solution_oninit = True # If True, all solutions are generated at initialization.
 
 picosat_args = []
 # Programs output show/hide
diff --git a/scripts/exceptions.py b/scripts/exceptions.py
index 5b55294..29aa1dc 100644
--- a/scripts/exceptions.py
+++ b/scripts/exceptions.py
@@ -25,3 +25,9 @@ class ConfigurationError(Exception):
 		self.message = message;
 	def __str__(self):
 		return "Configuration error: " + message
+
+class SolutionGenerated(Exception):
+	def __init__(self):
+		pass
+	def __str__(self):
+		return "Solution already generated."
diff --git a/scripts/initialize.py b/scripts/initialize.py
index 94b6191..57654c6 100755
--- a/scripts/initialize.py
+++ b/scripts/initialize.py
@@ -9,15 +9,18 @@ from conf import conf
 from conf import sf
 import exceptions
 import loop
+import solution
 
 def all():
 	base()
+	gen_nbscript()
 	parse_kconfig()
 	gen_requred()
-	gen_nbscript()
+	if conf.gen_all_solution_oninit:
+		solution.generate()
 
 def base():
-	try: os.mkdir(conf.build_folder)
+	try: os.mkdir(sf(conf.build_folder))
 	except FileExistsError:
 		pass
 
diff --git a/scripts/solution.py b/scripts/solution.py
index 60e9538..8e02324 100644
--- a/scripts/solution.py
+++ b/scripts/solution.py
@@ -6,7 +6,7 @@ import subprocess
 import utils
 from conf import conf
 from conf import sf
-from exceptions import NoSolution
+import exceptions
 
 def generate():
 	"""Collect boolean equations from files: rules, solved and required
@@ -14,7 +14,10 @@ def generate():
 	"""
 	# Check if rules_file exist. If it was generated.
 	if not os.path.isfile(sf(conf.rules_file)):
-		raise Exception("Rules file missing. Run parse_kconfig and check ecistence of " + rules_file)
+		raise exceptions.MissingFile(conf.rules_file,"Run parse_kconfig.")
+
+	if sys.path.isfile(sf(conf.solution_file)) and conf.gen_all_solution_oninit:
+		raise exceptions.SolutionGenerated()
 
 	w_file = tempfile.NamedTemporaryFile(delete=False)
 	# Join files to one single temporary file
@@ -47,13 +50,14 @@ def generate():
 	w_file.close()
 
 	# Execute picosat
+	picosat_cmd = [conf.picosat, w_file.name]
+	picosat_cmd += ['-o', sf(conf.solution_file)]
+	if (conf.gen_all_solution_oninit):
+		picosat_cmd += ['--all']
 	if conf.picosat_output:
-		subprocess.call([conf.picosat, w_file.name, '-o',
-			sf(conf.solution_file)] + conf.picosat_args)
+		subprocess.call(picosat_cmd)
 	else:
-		subprocess.call([conf.picosat, w_file.name, '-o',
-			sf(conf.solution_file)] + conf.picosat_args,
-			stdout=subprocess.DEVNULL)
+		subprocess.call(picosat_cmd, stdout=subprocess.DEVNULL)
 
 	os.remove(w_file.name)
 
-- 
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