1 files changed, 94 insertions, 0 deletions
diff --git a/attoconf/lib/make.py b/attoconf/lib/make.py
new file mode 100644
index 0000000..e54224d
--- /dev/null
+++ b/attoconf/lib/make.py
@@ -0,0 +1,94 @@
+#   Copyright 2013 Ben Longbons <b.r.longbons@gmail.com>
+#
+#   This file is part of attoconf.
+#
+#   attoconf is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   attoconf is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with attoconf.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import print_function, division, absolute_import
+
+import os
+from pipes import quote
+
+from ..classy import ClassyProject
+from ..version import string as version_string
+
+blacklist = frozenset(''.join(chr(i) for i in range(0x20)) + '#$')
+def validate(s):
+    return s == s.strip() and not frozenset(s) & blacklist
+
+
+class MakeHook(object):
+    __slots__ = ('infile', 'outfile')
+    def __init__(self, infile, outfile):
+        self.infile = infile
+        self.outfile = outfile
+
+    def __call__(self, build):
+        if self.outfile is None:
+            # if there are multiple backends
+            print('Skipping generation of a makefile')
+            return
+        with open(os.path.join(build.builddir, self.outfile), 'w') as out:
+            print('Generating a makefile ...')
+            out.write('# This part was generated by %s\n' % version_string)
+            out.write('SRC_DIR = %s\n' % build.relative_source())
+            out.write('\n')
+            # TODO preserve *original* order?
+            for var, (val, origin) in sorted(build.vars.iteritems()):
+                if val is None:
+                    if origin == 'default':
+                        continue
+                    # is it a good idea for Nones to survive this long?
+                    # especially conditional ones ...
+                    var = '# ' + var
+                    val = 'not defined'
+                elif isinstance(val, list):
+                    val = ' '.join(quote(a) for a in val)
+                elif isinstance(val, str):
+                    val = quote(val)
+                else:
+                    print('Assuming it\'s safe to print an instance of',
+                            type(val).__name__, '...')
+                out.write('%s = %s # %s\n' % (var, val, origin))
+            if self.infile is not None:
+                out.write('\n# The rest was copied from %s\n' % self.infile)
+                infile = os.path.join(build.project.srcdir, self.infile)
+                with open(infile) as in_:
+                    for line in in_:
+                        assert line.endswith('\n')
+                        out.write(line)
+
+
+class Make(ClassyProject):
+    ''' Post hook to generate a Makefile from Makefile.in
+    '''
+    __slots__ = ()
+    @classmethod
+    def slots(cls):
+        return super(Make, cls).slots() + ('make_in', 'make_out')
+
+    def __init__(self, srcdir):
+        super(Make, self).__init__(srcdir)
+        self.set_make_infile('Makefile.in')
+        self.set_make_outfile('Makefile') # relative to build dir
+
+    def set_make_infile(self, ipath):
+        self.make_in = ipath
+
+    def set_make_outfile(self, opath):
+        self.make_out = opath
+
+    def post(self):
+        super(Make, self).post()
+        self.checks.append(MakeHook(self.make_in, self.make_out))