From 2c8e2829dcf7c299d8f4121571722618f5ca59b3 Mon Sep 17 00:00:00 2001
From: Claudius Holeksa <mail@keldu.de>
Date: Sat, 22 Apr 2023 18:08:14 +0200
Subject: Initial setup for monorepo

---
 default.nix                      |  8 +++++
 forstio/core/.nix/derivation.nix | 25 +++++++++++++++
 forstio/core/SConscript          |  7 +++--
 forstio/core/SConstruct          | 66 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 103 insertions(+), 3 deletions(-)
 create mode 100644 default.nix
 create mode 100644 forstio/core/.nix/derivation.nix
 create mode 100644 forstio/core/SConstruct

diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..f8ecc6c
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,8 @@
+{ pkgs ? import <nixpkgs> {}
+}:
+
+{
+  forstio = {
+    core = pkgs.callPackage ./forstio/core/.nix/derivation.nix {};
+  };
+}
diff --git a/forstio/core/.nix/derivation.nix b/forstio/core/.nix/derivation.nix
new file mode 100644
index 0000000..a3b7ef1
--- /dev/null
+++ b/forstio/core/.nix/derivation.nix
@@ -0,0 +1,25 @@
+{ lib
+, stdenvNoCC
+, scons
+, clang
+, clang-tools
+}:
+
+let
+
+in stdenvNoCC.mkDerivation {
+  pname = "forstio-core";
+  version = "0.0.0";
+
+  src = ./..;
+
+  enableParallelBuilding = true;
+
+  nativeBuildInputs = [
+    scons
+    clang
+    clang-tools
+  ];
+
+  outputs = ["out" "dev"];
+}
diff --git a/forstio/core/SConscript b/forstio/core/SConscript
index 184eed1..9bbc8dc 100644
--- a/forstio/core/SConscript
+++ b/forstio/core/SConscript
@@ -20,17 +20,18 @@ env.headers += core_env.headers;
 
 ## Shared lib
 objects_shared = []
-core_env.add_source_files(objects_shared, env.core_sources, shared=True);
+core_env.add_source_files(objects_shared, core_env.sources, shared=True);
 core_env.library_shared = core_env.SharedLibrary('#build/forstio-core', [objects_shared]);
 
 ## Static lib
 objects_static = []
-core_env.add_source_files(objects_static, env.core_sources, shared=False);
+core_env.add_source_files(objects_static, core_env.sources, shared=False);
 core_env.library_static = core_env.StaticLibrary('#build/forstio-core', [objects_static]);
 
 # Set Alias
 env.Alias('library_core', [core_env.library_shared, core_env.library_static]);
-env.Alias('library', ['library_core']);
+
+env.targets += ['library_core'];
 
 # Install
 env.Install('$prefix/lib/', [core_env.library_shared, core_env.library_static]);
diff --git a/forstio/core/SConstruct b/forstio/core/SConstruct
new file mode 100644
index 0000000..865d131
--- /dev/null
+++ b/forstio/core/SConstruct
@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+import os.path
+import glob
+import re
+
+
+if sys.version_info < (3,):
+    def isbasestring(s):
+        return isinstance(s,basestring)
+else:
+    def isbasestring(s):
+        return isinstance(s, (str,bytes))
+
+def add_kel_source_files(self, sources, filetype, lib_env=None, shared=False, target_post=""):
+
+    if isbasestring(filetype):
+        dir_path = self.Dir('.').abspath
+        filetype = sorted(glob.glob(dir_path+"/"+filetype))
+
+    for path in filetype:
+        target_name = re.sub( r'(.*?)(\.cpp|\.c\+\+)', r'\1' + target_post, path )
+        if shared:
+            target_name+='.os'
+            sources.append( self.SharedObject( target=target_name, source=path ) )
+        else:
+            target_name+='.o'
+            sources.append( self.StaticObject( target=target_name, source=path ) )
+    pass
+
+def isAbsolutePath(key, dirname, env):
+	assert os.path.isabs(dirname), "%r must have absolute path syntax" % (key,)
+
+env_vars = Variables(
+	args=ARGUMENTS
+)
+
+env_vars.Add('prefix',
+	help='Installation target location of build results and headers',
+	default='/usr/local/',
+	validator=isAbsolutePath
+)
+
+env=Environment(ENV=os.environ, variables=env_vars, CPPPATH=[],
+    CPPDEFINES=['SAW_UNIX'],
+    CXXFLAGS=['-std=c++20','-g','-Wall','-Wextra'],
+    LIBS=[])
+env.__class__.add_source_files = add_kel_source_files
+env.Tool('compilation_db');
+env.cdb = env.CompilationDatabase('compile_commands.json');
+
+env.objects = [];
+env.sources = [];
+env.headers = [];
+env.targets = [];
+
+Export('env')
+SConscript('SConscript')
+
+env.Alias('cdb', env.cdb);
+env.Alias('all', [env.targets]);
+env.Default('all');
+
+env.Alias('install', '$prefix')
-- 
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