pyconfigure

(Brandon Invergo)
2013-01-08: initial work on pyconf script default/restructure restructure

initial work on pyconf script

diff --git a/pyconf.py b/pyconf.py
new file mode 100755
--- /dev/null
+++ b/pyconf.py
@@ -0,0 +1,128 @@
+#!/usr/bin/env python
+
+# Copyright (C) 2013 Brandon Invergo <brandon@invergo.net>
+#
+# This file is part of pyconfigure.
+#
+# pyconfigure 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.
+#
+# pyconfigure 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 pyconfigure.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from __future__ import print_function
+import os.path
+import sys
+import getopt
+import shutils
+import subprocess
+
+
+DATADIR = "/usr/local/share/pyconfigure/"
+
+
+def parse_pkg_info(pkg_info):
+    pass
+
+
+def gen_configure(pkg_meta, output):
+    config_src = os.path.join(DATADIR, "configure.ac")
+    config_dst = os.path.join(output, "configure.ac")
+    bootstrap = os.path.join(DATADIR, "bootstrap.sh")
+    with open(config_src, 'r') as h:
+        config_lines = h.readlines()
+    init_i = config_lines.index("@AC_INIT_LINE@")
+    config_lines[init_i] = "AC_INIT([{0}], [{1}], [{2}])".format(
+        pkg_meta["name"],
+        pkg_meta["version"],
+        pkg_meta["email"])
+    with open(config_dst, 'w') as h:
+        for line in config_lines:
+            h.write(line)
+    shutils.copy(bootstrap, output)
+    subprocess.call(["autoreconf", "-fvi", output])
+
+
+def gen_makefile(pkg_meta, output, prefer_make):
+    pass
+
+
+def gen_distutils(pkg_meta, output, prefer_make):
+    pass
+
+
+def print_usage():
+    print("""Usage: pyconf [OPTIONS] [TARGET] PKG-INFO
+Generate `configure' and installation scripts for a Python program
+
+OPTIONS
+    -o, --output=DIR    directory to move the generated files
+    --prefer-make       prefer Make for performing installation logic,
+                        otherwise prefer the TARGET
+    --help              show this information
+TARGETSl:
+    distutils (default)
+
+By default, the generated `Makefile' will be a wrapper around the
+TARGET-based script for Python (i.e. distutils' `setup.py' script).
+If `--prefer-make' is specified, the TARGET-based Python script will
+be a wrapper around `Makefile'.
+
+For more information on the PKG-INFO file format, see PEP 345.
+<http://www.python.org/dev/peps/pep-0345/>
+
+Report bugs to: bug-pyconfigure@gnu.org
+pyconfigure home page: <http://www.gnu.org/software/pyconfigure/>
+General help using GNU software: <http://www.gnu.org/get/help/>""")
+
+
+if __name__ == "__main__":
+    long_args = ["help", "output", "prefer-make"]
+    try:
+        opts, args = getopt.gnu_getopt(sys.argv[1:], "ho:", long_args)
+    except getopt.GetoptError as err:
+        print(str(err))
+        print_usage()
+        sys.exit(2)
+    output = os.getcwd()
+    prefer_make = False
+    for o, a in opts:
+        if o in ["-h", "--help"]:
+            print_usage()
+            sys.exit()
+        if o in ["-o", "--output"]:
+            output = a
+        if o in ["--prefer-make"]:
+            prefer_make = True
+        else:
+            print("Warning: unhandled option")
+    if len(args) == 0:
+        print_usage()
+        sys.exit(2)
+    elif len(args) == 1:
+        target = 0
+        pkg_info = args[0]
+    else:
+        # do the following with an eye to the future of handling more
+        # Python packaging systems:
+        target = {"distutils":0}.get(args[0])
+        if target is None:
+            print("Error: invalid target {0}".format([args[0]))
+            sys.exit(2)
+        pkg_info = args[1]
+    if not os.isfile(pkg_info):
+        print("Error: PKG-INFO file does not exist")
+        sys.exit(2)
+    pkg_meta = parse(pkg_info)
+    gen_configure(pkg_meta, output)
+    gen_makefile(pkg_meta, output, prefer_make)
+    # also with an eye to the future:
+    [gen_distutils][target](pkg_meta, output, prefer_make)