🐐 Compiler

cent

@@ -2,15 +2,20 @@
 """
 Usage:
     cent (-h|--help)
-    cent (-i|-c) FILE
+    cent -i FILE
+    cent -c [--keep-c] FILE
 
 Options:
     -h --help   Print this help screen
     -i          Run the interpreter
     -c          Run the compiler
+    --keep-c    Keep the generated C file alongside the binary
     FILE        The file to compile/interpret
 """
+import os
+import subprocess
 import sys
+import tempfile
 
 from docopt import docopt
 from rply.errors import LexingError
@@ -19,6 +24,7 @@ from centvrion.errors import CentvrionError
 from centvrion.lexer import Lexer
 from centvrion.parser import Parser
 from centvrion.ast_nodes import Program
+from centvrion.compiler.emitter import compile_program
 
 def main():
     args = docopt(__doc__)
@@ -44,7 +50,31 @@ def main():
             except CentvrionError as e:
                 sys.exit(f"CENTVRION error: {e}")
         else:
-            raise Exception("Compiler not implemented")
+            c_source = compile_program(program)
+            runtime_c = os.path.join(
+                os.path.dirname(__file__),
+                "centvrion", "compiler", "runtime", "cent_runtime.c"
+            )
+            out_path = os.path.splitext(file_path)[0]
+            if args["--keep-c"]:
+                tmp_path = out_path + ".c"
+                with open(tmp_path, "w") as f:
+                    f.write(c_source)
+                subprocess.run(
+                    ["gcc", "-O2", tmp_path, runtime_c, "-o", out_path],
+                    check=True,
+                )
+            else:
+                with tempfile.NamedTemporaryFile(suffix=".c", delete=False, mode="w") as tmp:
+                    tmp.write(c_source)
+                    tmp_path = tmp.name
+                try:
+                    subprocess.run(
+                        ["gcc", "-O2", tmp_path, runtime_c, "-o", out_path],
+                        check=True,
+                    )
+                finally:
+                    os.unlink(tmp_path)
     else:
         raise Exception("Output not of type 'Program'", type(program))