Improve SCons to use default files (#931)

Author: PeanutbutterWarrior

SConscript

@@ -5,7 +5,7 @@ This provides Builder objects for each of the language implementations in the AA
 
 Currently, the aim is to provide a way to compile or copy the implementation files to the build directory, as well as to provide ways to run them and capture their output.
 
-To run the compilation for all implmeentations in one language, e.g. Rust, run the command `scons build/c`, and the resulting executables will be available in the `cuild/c` directory, each in their respective algorithm directory, containing the executable."""
+To run the compilation for all implementations in one language, e.g. C, run the command `scons build/c`, and the resulting executables will be available in the `build/c` directory, each in their respective algorithm directory, containing the executable."""
 
 from pathlib import Path
 import os
@@ -18,9 +18,32 @@ for tool in ['gcc','gnulink']:
 env['CCFLAGS'] = ''
 
 # Add other languages here when you want to add language targets
-languages = ['c']
+# Put 'name_of_language_directory' : 'file_extension'
+languages = {'c': 'c'}
 
 env.C = env.Program
 
-SConscript('SConscript', exports='env languages')
+Export('env')
+
+sconscripts = []
+files_to_compile = {language: [] for language in languages}
+
+for chapter_dir in Path.cwd().joinpath('contents').iterdir():
+    if (code_dir := (chapter_dir / 'code')).exists():
+        for path in code_dir.iterdir():
+            if path.stem in languages:
+                # Check for overriding sconscript
+                if (sconscript_path := path / 'SConscript').exists():
+                    sconscripts.append(sconscript_path)
+                    SConscript(sconscript_path, exports='env')
+                else:
+                    files_to_compile[path.stem].extend(path.glob(f'*.{languages[path.stem]}'))
+
+sconscript_dir_path = Path('sconscripts')
+for language, files in files_to_compile.items():
+    if files:
+        if (sconscript_path := sconscript_dir_path / f"{language}_SConscript").exists():
+            SConscript(sconscript_path, exports = {'files_to_compile': files})
+        else:
+            print(f'{language} file found at {files[0]}, but no sconscript file is present ')
 

SConstruct

@@ -0,0 +1,6 @@
+Import('files_to_compile env')
+from pathlib import Path
+
+for file in files_to_compile:
+    chapter_name = file.parent.parent.parent.stem
+    env.C(f'#/build/c/{chapter_name}', str(file))