From f31bf4636ac245c71ed88d5990c2b6d6484e37e8 Mon Sep 17 00:00:00 2001
From: Jussi Pakkanen <jpakkane@gmail.com>
Date: Sun, 5 Jan 2014 23:03:52 +0200
Subject: Can set core options.

---
 mesonconf.py      | 42 ++++++++++++++++++++++++++++++++++++++++--
 optinterpreter.py | 11 ++++++++++-
 2 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/mesonconf.py b/mesonconf.py
index 37aaede..02e9702 100755
--- a/mesonconf.py
+++ b/mesonconf.py
@@ -18,11 +18,15 @@ import sys, os
 import pickle
 from optparse import OptionParser
 import coredata
+from meson import build_types
 
-usage_info = '%prog [build dir]'
+usage_info = '%prog [build dir] [set commands]'
 
 parser = OptionParser(usage=usage_info, version=coredata.version)
 
+parser.add_option('-D', action='append', default=[], dest='sets',
+                  help='Set an option to the given value.')
+
 class ConfException(Exception):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -40,6 +44,10 @@ class Conf:
             raise ConfException('Version mismatch (%s vs %s)' %
                                 (coredata.version, self.coredata.version))
 
+    def save(self):
+        # Only called if something has changed so overwrite unconditionally.
+        pickle.dump(self.coredata, open(self.coredata_file, 'wb'))
+
     def print_aligned(self, arr):
         longest = max((len(x[0]) for x in arr))
         for i in arr:
@@ -49,6 +57,32 @@ class Conf:
             f = '%s:%s' % (name, padding)
             print(f, value)
 
+    def tobool(self, thing):
+        if thing.lower() == 'true':
+            return True
+        if thing.lower() == 'false':
+            return False
+        raise ConfException('Value %s is not boolean (true or false)' % thing)
+
+    def set_options(self, options):
+        for o in options:
+            if '=' not in o:
+                raise ConfException('Value "%s" not of type "a=b"' % o)
+            (k, v) = o.split('=', 1)
+            if k == 'type':
+                if v not in build_types:
+                    raise ConfException('Invalid build type %s' % v)
+                self.coredata.buildtype = v
+            elif k == 'strip':
+                self.coredata.strip = self.tobool(v)
+            elif k == 'coverage':
+                v = self.tobool(v)
+                self.coredata.coverage = self.tobool(v)
+            elif k == 'pch':
+                self.coredata.use_pch = self.tobool(v)
+            elif k == 'unity':
+                self.coredata.unity = self.tobool(v)
+
     def print_conf(self):
         print('Core properties\n')
         print('Source dir:', self.build.environment.source_dir)
@@ -86,7 +120,11 @@ if __name__ == '__main__':
         builddir = args[-1]
     try:
         c = Conf(builddir)
-        c.print_conf()
+        if len(options.sets) > 0:
+            c.set_options(options.sets)
+            c.save()
+        else:
+            c.print_conf()
     except ConfException as e:
         print('Meson configurator encountered an error:\n')
         print(e)
diff --git a/optinterpreter.py b/optinterpreter.py
index 756ec5f..8d42e1f 100644
--- a/optinterpreter.py
+++ b/optinterpreter.py
@@ -1,4 +1,4 @@
-# Copyright 2013 Jussi Pakkanen
+# Copyright 2013-2014 Jussi Pakkanen
 
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -17,6 +17,13 @@ import coredata
 import nodes
 import os
 
+forbidden_option_names = {'type': True,
+                          'strip': True,
+                          'coverage': True,
+                          'pch': True,
+                          'unity': True,
+                          }
+
 class OptionException(coredata.MesonException):
     pass
 
@@ -138,6 +145,8 @@ class OptionInterpreter:
         opt_name = posargs[0]
         if not isinstance(opt_name, str):
             raise OptionException('Positional argument must be a string.')
+        if opt_name in forbidden_option_names:
+            raise OptionException('Option name %s is reserved.' % opt_name)
         if self.subproject != '':
             opt_name = self.subproject + '-' + opt_name
         opt = option_types[opt_type](kwargs)
-- 
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