project.boost: factor out Configuration/Platform/Linkage

1 files changed, 42 insertions, 0 deletions

diff --git a/project/configuration.py b/project/configuration.py
new file mode 100644
index 0000000..50489fa
--- /dev/null
+++ b/project/configuration.py
@@ -0,0 +1,42 @@
+# Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com>
+# This file is part of the "cmake-common" project.
+# For details, see https://github.com/egor-tensin/cmake-common.
+# Distributed under the MIT License.
+
+import argparse
+from enum import Enum
+
+
+class Configuration(Enum):
+    '''Correspond to CMake's default CMAKE_BUILD_TYPE values.'''
+
+    DEBUG = 'Debug'
+    MINSIZEREL = 'MinSizeRel'
+    RELWITHDEBINFO = 'RelWithDebInfo'
+    RELEASE = 'Release'
+
+    def __str__(self):
+        return self.value
+
+    @staticmethod
+    def all():
+        return tuple(Configuration)
+
+    @staticmethod
+    def parse(s):
+        try:
+            return Configuration(s)
+        except ValueError:
+            raise argparse.ArgumentTypeError(f'invalid configuration: {s}')
+
+    def to_boost_variant(self):
+        '''Roughly maps CMake's CMAKE_BUILD_TYPE to Boost's variant.
+
+        AFAIK, Boost only supports debug/release, MinSizeRel and RelWithDebInfo
+        are hence mapped to "release".  The libraries will still reside in
+        stage/PLATFORM/CONFIGURATION/lib, if CONFIGURATION is
+        MinSizeRel/RelWithDebInfo.
+        '''
+        if self in (Configuration.MINSIZEREL, Configuration.RELWITHDEBINFO):
+            return Configuration.RELEASE.to_boost_variant()
+        return str(self).lower()