Moved compiler detection inside Environment.

builder.py

@@ -67,7 +67,7 @@ class Builder():
             raise interpreter.InvalidCode('Builder file is empty.')
         assert(isinstance(code, str))
         env = environment.Environment(self.source_dir, self.build_dir)
-        intr = interpreter.Interpreter(code, env.get_scratch_dir())
+        intr = interpreter.Interpreter(code, env)
         g = shellgenerator.ShellGenerator(intr, env)
         g.generate()
 

environment.py

@@ -20,16 +20,6 @@ class EnvironmentException(Exception):
     def __init(self, *args, **kwargs):
         Exception.__init__(self, *args, **kwargs)
 
-def detect_c_compiler(execmd):
-    exelist = execmd.split()
-    p = subprocess.Popen(exelist + ['--version'], stdout=subprocess.PIPE)
-    out = p.communicate()[0]
-    out = out.decode()
-    if (out.startswith('cc ') or out.startswith('gcc')) and \
-        'Free Software Foundation' in out:
-        return GnuCCompiler(exelist)
-    raise EnvironmentException('Unknown compiler "' + execmd + '"')
-
 class CCompiler():
     def __init__(self, exelist):
         if type(exelist) == type(''):
@@ -91,19 +81,6 @@ class GnuCCompiler(CCompiler):
 def shell_quote(cmdlist):
     return ["'" + x + "'" for x in cmdlist]
 
-def test_cmd_line_building():
-    src_file = 'file.c'
-    dst_file = 'file.o'
-    gnuc = detect_c_compiler('/usr/bin/cc')
-    cmds = gnuc.get_exelist()
-    cmds += gnuc.get_std_warn_flags()
-    cmds += gnuc.get_compile_only_flags()
-    cmds.append(src_file)
-    cmds += gnuc.get_output_flags()
-    cmds.append(dst_file)
-    cmd_line = ' '.join(shell_quote(cmds))
-    print(cmd_line)
-
 class Environment():
     def __init__(self, source_dir, build_dir):
         self.source_dir = source_dir
@@ -121,16 +98,26 @@ class Environment():
         self.static_lib_prefix = 'lib'
         self.object_suffix = 'o'
 
-    def get_c_compiler(self):
+    def get_c_compiler_exelist(self):
         evar = 'CC'
         if evar in os.environ:
             return os.environ[evar].split()
         return self.default_c
     
+    def detect_c_compiler(self):
+        exelist = self.get_c_compiler_exelist()
+        p = subprocess.Popen(exelist + ['--version'], stdout=subprocess.PIPE)
+        out = p.communicate()[0]
+        out = out.decode()
+        if (out.startswith('cc ') or out.startswith('gcc')) and \
+            'Free Software Foundation' in out:
+            return GnuCCompiler(exelist)
+        raise EnvironmentException('Unknown compiler "' + execmd + '"')
+    
     def get_scratch_dir(self):
         return self.scratch_dir
 
-    def get_cxx_compiler(self):
+    def get_cxx_compiler_exelist(self):
         evar = 'CXX'
         if evar in os.environ:
             return os.environ[evar].split()

interpreter.py

@@ -66,14 +66,14 @@ class Executable(BuildTarget):
 
 class Interpreter():
 
-    def __init__(self, code, scratch_dir):
+    def __init__(self, code, environment):
         self.ast = parser.build_ast(code)
         self.sanity_check_ast()
         self.project = None
         self.compilers = []
         self.targets = {}
         self.variables = {}
-        self.scratch_dir = scratch_dir
+        self.environment = environment
 
     def get_project(self):
         return self.project
@@ -141,8 +141,8 @@ class Interpreter():
             raise InvalidCode('Function language() can only be called once (line %d).' % node.lineno())
         for lang in args:
             if lang.lower() == 'c':
-                comp = environment.detect_c_compiler('gcc')
+                comp = self.environment.detect_c_compiler()
-                comp.sanity_check(self.scratch_dir)
+                comp.sanity_check(self.environment.get_scratch_dir())
                 self.compilers.append(comp)
             else:
                 raise InvalidCode('Tried to use unknown language "%s".' % lang)
@@ -238,5 +238,5 @@ if __name__ == '__main__':
     dep = find_dep('gtk+-3.0')
     prog.add_dep(dep)
     """
-    i = Interpreter(code, '.')
+    i = Interpreter(code, environment.Environment('.', 'work area'))
     i.run()

shellgenerator.py

@@ -98,6 +98,6 @@ if __name__ == '__main__':
     import interpreter, environment
     os.chdir(os.path.split(__file__)[0])
     envir = environment.Environment('.', 'work area')
-    intpr = interpreter.Interpreter(code, envir.get_scratch_dir())
+    intpr = interpreter.Interpreter(code, envir)
     g = ShellGenerator(intpr, envir)
     g.generate()