From 24d3476b6b807705ceafaf6192ab1482ac1aa929 Mon Sep 17 00:00:00 2001
From: Nicolas Rabault <nicolas.rabault@luos.io>
Date: Thu, 1 Feb 2024 12:22:07 +0100
Subject: [PATCH] Enable shared libs compilation by compiling directly the lib

---
 platformio.ini          | 23 +++++++++++++++++++++--
 src/README.md           |  8 ++++++++
 src/main.c              |  9 +++++++++
 src/shared_lib_build.py | 41 +++++++++++++++++++++++++++++++++++++++++
 4 files changed, 79 insertions(+), 2 deletions(-)
 create mode 100644 src/README.md
 create mode 100644 src/main.c
 create mode 100644 src/shared_lib_build.py

diff --git a/platformio.ini b/platformio.ini
index a9c82b9a1..8cde18176 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,9 +10,28 @@
 
 
 [common]
-default_envs = native
+default_envs = native_lib
 
-[env:native]
+[env:native_lib]
+platform = native
+
+lib_deps=
+    serial_network
+    ws_network
+    robus_network
+
+lib_extra_dirs =
+    $PROJECT_DIR/network/ # include the folder hosting robus_network
+    $PROJECT_DIR/../     # include the folder hosting Luos_engine
+
+test_build_src = false
+
+build_flags =
+    -D LUOSHAL=NATIVE
+
+extra_scripts = src/shared_lib_build.py
+
+[env:tests_debug]
 platform = native
 
 lib_deps=
diff --git a/src/README.md b/src/README.md
new file mode 100644
index 000000000..f54e26660
--- /dev/null
+++ b/src/README.md
@@ -0,0 +1,8 @@
+This folder doesn't contain any Luos_engine code, you should have a look at:
+
+- [engine](../engine) folder if you are interested in the core code of Luos_engine.
+- [network](../network) folder if you are interested in the network code of Luos_engine.
+- [tool_services](../tool_services) folder if you are interested in the Gate or Pipe code of Luos_engine.
+- [examples](../../examples) folder if you are interested in examples of Luos_engine usage.
+
+This folder only contain specific files allowing to compile Luos_engine as a shared lib.
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 000000000..e01a0bb89
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,9 @@
+// This file only allow to compile the project.
+#include "serial_network.h"
+#include "ws_network.h"
+#include "robus_network.h"
+
+int main(void)
+{
+    return 0;
+}
diff --git a/src/shared_lib_build.py b/src/shared_lib_build.py
new file mode 100644
index 000000000..af2c92053
--- /dev/null
+++ b/src/shared_lib_build.py
@@ -0,0 +1,41 @@
+Import("env")
+import os
+import platform as pf
+import click
+
+def shared_lib(source, target, env):
+    # Try to find the luos_engine.a somwhere on $BUILD_DIR/*/ archive and save it to a libPath variable
+    libPath = None
+    for root, dirs, files in os.walk(env.subst("$BUILD_DIR")):
+        for file in files:
+            if file.endswith("luos_engine.a"):
+                libPath = os.path.join(root, file)
+                break
+        if libPath is not None:
+            break
+    # Try to find all the network libs
+    networklibs = []
+    for root, dirs, files in os.walk(env.subst("$BUILD_DIR")):
+        for file in files:
+            if file.endswith("network.a"):
+                networklibs.append(os.path.join(root, file))
+                break
+
+    if libPath is not None:
+        # Convert the luos_engine.a archive to a shared library
+        if (pf.system() == 'Windows'):
+            env.Execute("gcc -O2 -shared -o $BUILD_DIR/libluos_engine.dll " + libPath)
+            click.secho("* Luos engine shared library available in " + str(env.subst("$BUILD_DIR")) + "/libluos_engine.dll .", fg="green")
+        elif (pf.system() == 'Linux'):
+            env.Execute("gcc -O2 -shared -o $BUILD_DIR/libluos_engine.so " + libPath)
+            click.secho("* Luos engine shared library available in " + str(env.subst("$BUILD_DIR")) + "/libluos_engine.so .", fg="green")
+        elif (pf.system() == 'Darwin'):
+            for networklib in networklibs:
+                env.Execute("gcc -O2 -shared -o $BUILD_DIR/" + os.path.basename(networklib)[0:-10] + "_luos_engine.dylib " + libPath + " " + networklib)
+
+            click.secho("\n")
+            click.secho("Luos engine shared libraries available in " + str(env.subst("$BUILD_DIR")) + "/ :", underline=True)
+            for networklib in networklibs:
+                click.secho("\t* " + os.path.basename(networklib)[0:-10] + "_luos_engine.dylib ", fg="green")
+
+env.AddPostAction("$PROGPATH", shared_lib)