fable: Set version to project version from conanfile.py

It turns out fable is not yet at version 1.0 after all.
Until fable becomes a lot more stable and tested, we'll go with the
Cloe project version.

Author: cassava

fable/CMakeLists.txt

@@ -1,9 +1,6 @@
 cmake_minimum_required(VERSION 3.7 FATAL_ERROR)
 
-project(fable
-    VERSION 1.0.0
-    LANGUAGES CXX
-)
+project(fable LANGUAGES CXX)
 
 set(target fable)
 set(alias fable::fable)
@@ -29,7 +26,7 @@ add_library(${alias} ALIAS ${target})
 set_target_properties(${target} PROPERTIES
     CXX_STANDARD 14
     CXX_STANDARD_REQUIRED ON
-    VERSION ${PROJECT_VERSION}
+    VERSION ${FABLE_VERSION}
 )
 target_include_directories(${target}
   PUBLIC

fable/conanfile.py

@@ -1,11 +1,9 @@
-import os
-
+import os.path
 from conans import ConanFile, CMake, tools
 
 
 class Fable(ConanFile):
     name = "fable"
-    version = "1.0.0"
     license = "Apache-2.0"
     url = "https://github.com/eclipse/cloe"
     description = "JSON schema and configuration library"
@@ -35,6 +33,13 @@ class Fable(ConanFile):
 
     _cmake = None
 
+    def _project_version(self):
+        version_file = os.path.join(self.recipe_folder, "..", "VERSION")
+        return tools.load(version_file).strip()
+
+    def set_version(self):
+        self.version = self._project_version()
+
     def build_requirements(self):
         if self.options.test:
             self.build_requires("gtest/[~1.10]")
@@ -44,6 +49,7 @@ def _configure_cmake(self):
             return self._cmake
         self._cmake = CMake(self)
         self._cmake.definitions["CMAKE_EXPORT_COMPILE_COMMANDS"] = True
+        self._cmake.definitions["FABLE_VERSION"] = self.version
         self._cmake.definitions["BuildTests"] = self.options.test
         self._cmake.configure()
         return self._cmake

runtime/conanfile.py

@@ -33,7 +33,6 @@ class CloeRuntime(ConanFile):
         "inja/[~=3.0.0]",
         "spdlog/[~=1.5.0]",
         "incbin/[~=1.74.0]@cloe/stable",
-        "fable/1.0.0@cloe/develop",
     ]
 
     _cmake = None
@@ -45,6 +44,9 @@ def _project_version(self):
     def set_version(self):
         self.version = self._project_version()
 
+    def requirements(self):
+        self.requires("fable/{}@cloe/develop".format(self.version))
+
     def build_requirements(self):
         if self.options.test:
             self.build_requires("gtest/[~1.10]")