Add Vala Bindings

- src/utils.h: Replace defined strings with static const chars
- src/CMakeLists.txt: Add .gir and .vapi generation code
- tetsts/CMakeLists.txt: Compile tst_utils_vala + add as test
- CMakeLists.txt: Add tst_utils_vala to tests + add modules from cmake/
- cmake/FindGObjectIntrospection.cmake: Add file
- cmake/FindVala.cmake.cmake: Add file
- .build.yml: Add libgirepository1.0-dev, gobject-introspection, valac dependencies

fixes https://github.com/AyatanaIndicators/libayatana-common/issues/22

2 files changed, 118 insertions, 0 deletions

diff --git a/cmake/FindGObjectIntrospection.cmake b/cmake/FindGObjectIntrospection.cmake
new file mode 100644
index 0000000..2073c3c
--- /dev/null
+++ b/cmake/FindGObjectIntrospection.cmake
@@ -0,0 +1,61 @@
+# - try to find gobject-introspection
+#
+# Once done this will define
+#
+#  INTROSPECTION_FOUND - system has gobject-introspection
+#  INTROSPECTION_SCANNER - the gobject-introspection scanner, g-ir-scanner
+#  INTROSPECTION_COMPILER - the gobject-introspection compiler, g-ir-compiler
+#  INTROSPECTION_GENERATE - the gobject-introspection generate, g-ir-generate
+#  INTROSPECTION_GIRDIR
+#  INTROSPECTION_TYPELIBDIR
+#  INTROSPECTION_CFLAGS
+#  INTROSPECTION_LIBS
+#
+# Copyright (C) 2010, Pino Toscano, <pino@kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+macro(_GIR_GET_PKGCONFIG_VAR _outvar _varname)
+  execute_process(
+    COMMAND ${PKG_CONFIG_EXECUTABLE} --variable=${_varname} gobject-introspection-1.0
+    OUTPUT_VARIABLE _result
+    RESULT_VARIABLE _null
+  )
+
+  if (_null)
+  else()
+    string(REGEX REPLACE "[\r\n]" " " _result "${_result}")
+    string(REGEX REPLACE " +$" ""  _result "${_result}")
+    separate_arguments(_result)
+    set(${_outvar} ${_result} CACHE INTERNAL "")
+  endif()
+endmacro(_GIR_GET_PKGCONFIG_VAR)
+
+find_package(PkgConfig)
+if(PKG_CONFIG_FOUND)
+  if(PACKAGE_FIND_VERSION_COUNT GREATER 0)
+    set(_gir_version_cmp ">=${PACKAGE_FIND_VERSION}")
+  endif()
+  pkg_check_modules(_pc_gir gobject-introspection-1.0${_gir_version_cmp})
+  if(_pc_gir_FOUND)
+    set(INTROSPECTION_FOUND TRUE)
+    _gir_get_pkgconfig_var(INTROSPECTION_SCANNER "g_ir_scanner")
+    _gir_get_pkgconfig_var(INTROSPECTION_COMPILER "g_ir_compiler")
+    _gir_get_pkgconfig_var(INTROSPECTION_GENERATE "g_ir_generate")
+    _gir_get_pkgconfig_var(INTROSPECTION_GIRDIR "girdir")
+    _gir_get_pkgconfig_var(INTROSPECTION_TYPELIBDIR "typelibdir")
+    set(INTROSPECTION_CFLAGS "${_pc_gir_CFLAGS}")
+    set(INTROSPECTION_LIBS "${_pc_gir_LIBS}")
+  endif()
+endif()
+
+mark_as_advanced(
+  INTROSPECTION_SCANNER
+  INTROSPECTION_COMPILER
+  INTROSPECTION_GENERATE
+  INTROSPECTION_GIRDIR
+  INTROSPECTION_TYPELIBDIR
+  INTROSPECTION_CFLAGS
+  INTROSPECTION_LIBS
+)
diff --git a/cmake/FindVala.cmake b/cmake/FindVala.cmake
new file mode 100644
index 0000000..a638735
--- /dev/null
+++ b/cmake/FindVala.cmake
@@ -0,0 +1,57 @@
+# - Find Vala
+# This module looks for valac.
+# This module defines the following values:
+#    VALA_FOUND
+#    VALA_COMPILER
+#    VALA_VERSION
+#    VAPI_GEN
+#    VAPI_GEN_VERSION
+
+#=============================================================================
+# Copyright Přemysl Janouch 2011
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+# OF SUCH DAMAGE.
+#=============================================================================
+
+find_program (VALA_COMPILER "valac")
+
+if (VALA_COMPILER)
+	execute_process (COMMAND ${VALA_COMPILER} --version
+		OUTPUT_VARIABLE VALA_VERSION)
+	string (REGEX MATCH "[.0-9]+" VALA_VERSION "${VALA_VERSION}")
+endif (VALA_COMPILER)
+
+find_program (VAPI_GEN "vapigen")
+
+if (VAPI_GEN)
+	execute_process (COMMAND ${VAPI_GEN} --version
+		OUTPUT_VARIABLE VAPI_GEN_VERSION)
+	string (REGEX MATCH "[.0-9]+" VAPI_GEN_VERSION "${VAPI_GEN_VERSION}")
+endif (VAPI_GEN)
+
+include (FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS (Vala
+	REQUIRED_VARS VALA_COMPILER
+	VERSION_VAR VALA_VERSION)
+
+mark_as_advanced (VALA_COMPILER VALA_VERSION VAPI_GEN)
+