Start working on build system.

src/base/compiler/BuildSession.cpp

@@ -0,0 +1,73 @@
+#include "BuildSession.h"
+
+#include "Logger.h"
+#include "Process.h"
+#include "Directory.h"
+
+BuildSession::BuildSession(const String& source_dir, 
+    const String& build_dir)
+    : m_source_dir(source_dir)
+{
+    if (build_dir.empty())
+    {
+        m_build_dir = FileSystemPath::current_dir().value();
+    }
+    else
+    {
+        m_build_dir = build_dir;
+    }
+}
+
+Status BuildSession::scan()
+{
+    LOG_INFO("Scanning sources at:" << m_source_dir);
+    Vector<FileSystemPath> toml_files;
+    STATUS_CHECK(Directory::getFilesWithExtension(
+        m_source_dir, 
+        ".toml", 
+        toml_files,
+        true), "Error looking for build files");
+
+    for(const auto& toml_file : toml_files)
+    {
+        if (toml_file.file_name() == "build")
+        {
+            STATUS_CHECK(add_library(toml_file),
+                "Error adding library");
+        }
+    }
+    return {};
+
+}
+
+Status BuildSession::add_library(const FileSystemPath& config_path)
+{
+    LOG_INFO("Adding library at: " << config_path);
+    BuildLibrary lib(config_path);
+    STATUS_CHECK(lib.scan(), "Error scanning library");
+    m_libraries.push_back(lib);
+    return {};
+}
+
+Status BuildSession::build()
+{
+    for(const auto& library : m_libraries)
+    {
+        for(const auto& source : library.get_sources())
+        {
+            String compiler_command = m_compiler_command + " -c ";
+            compiler_command += source.str() + " ";
+            LOG_INFO("Running command: " << compiler_command);
+            
+            const auto self_name = Process::get_self_name();
+            if (!self_name.ok())
+            {
+                return Status(self_name.error());
+            }
+            LOG_INFO("Self name is: " << self_name.value());    
+            break;
+        }
+        break;
+    }
+    return {};
+}