python: simplify build, some fixups

* lang/python/gpg/version.py.in: Rename to lang/python/version.py.in.
configure.ac: Generate version.py.in in lang/python.
* lang/python/MANIFEST.in: Include version.py explicitly.
* lang/python/gpg: Rename to 'src'.
* lang/python/Makefile.am: Do not copy source files, do not use absolute
directories, support lib64 in uninstall, clean also dist directory, use
symlink for gpg src.
* lang/python/setup.py.in: Use builddir, copy sources into builddir,
copy version.py into module.
--

Simplify build to symlink the gpg sources into builddir instead of
copying. This requires handling of version.py as generated file.

In addition apply some cleanups: Drop the absolution pathes, clean the
dist directory as well, support lib64 for sitelib at uninstall.

Signed-off-by: Alon Bar-Lev <[email protected]>

1 files changed, 121 insertions, 0 deletions

diff --git a/lang/python/src/__init__.py b/lang/python/src/__init__.py
new file mode 100644
index 00000000..385b17e3
--- /dev/null
+++ b/lang/python/src/__init__.py
@@ -0,0 +1,121 @@
+# Copyright (C) 2016 g10 Code GmbH
+# Copyright (C) 2004 Igor Belyi <[email protected]>
+# Copyright (C) 2002 John Goerzen <[email protected]>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+
+"""gpg: GnuPG Interface for Python (GPGME bindings)
+
+Welcome to gpg, the GnuPG Interface for Python.
+
+The latest release of this package may be obtained from
+https://www.gnupg.org
+
+FEATURES
+--------
+
+ * Feature-rich, full implementation of the GPGME library.  Supports
+   all GPGME features.  Callback functions may be written in pure
+   Python.  Exceptions raised in callbacks are properly propagated.
+
+ * Ability to sign, encrypt, decrypt, and verify data.
+
+ * Ability to list keys, export and import keys, and manage the keyring.
+
+ * Fully object-oriented with convenient classes and modules.
+
+QUICK EXAMPLE
+-------------
+
+    >>> import gpg
+    >>> with gpg.Context() as c:
+    >>> with gpg.Context() as c:
+    ...     cipher, _, _ = c.encrypt("Hello world :)".encode(),
+    ...                              passphrase="abc")
+    ...     c.decrypt(cipher, passphrase="abc")
+    ...
+    (b'Hello world :)',
+     <gpg.results.DecryptResult object at 0x7f5ab8121080>,
+     <gpg.results.VerifyResult object at 0x7f5ab81219b0>)
+
+GENERAL OVERVIEW
+----------------
+
+For those of you familiar with GPGME, you will be right at home here.
+
+The python gpg module is, for the most part, a direct interface to the C GPGME
+library.  However, it is re-packaged in a more Pythonic way --
+object-oriented with classes and modules.  Take a look at the classes
+defined here -- they correspond directly to certain object types in GPGME
+for C.  For instance, the following C code:
+
+gpgme_ctx_t context;
+gpgme_new(&context);
+...
+gpgme_op_encrypt(context, recp, 1, plain, cipher);
+
+Translates into the following Python code:
+
+context = core.Context()
+...
+context.op_encrypt(recp, 1, plain, cipher)
+
+The Python module automatically does error-checking and raises Python
+exception gpg.errors.GPGMEError when GPGME signals an error. getcode()
+and getsource() of this exception return code and source of the error.
+
+IMPORTANT NOTE
+--------------
+This documentation only covers a small subset of available GPGME functions and
+methods.  Please consult the documentation for the C library
+for comprehensive coverage.
+
+This library uses Python's reflection to automatically detect the methods
+that are available for each class, and as such, most of those methods
+do not appear explicitly anywhere. You can use dir() python built-in command
+on an object to see what methods and fields it has but their meaning can
+be found only in GPGME documentation.
+
+FOR MORE INFORMATION
+--------------------
+GnuPG homepage: https://www.gnupg.org/
+GPGME documentation: https://www.gnupg.org/documentation/manuals/gpgme/
+
+"""
+
+from __future__ import absolute_import, print_function, unicode_literals
+del absolute_import, print_function, unicode_literals
+
+from . import core
+from . import errors
+from . import constants
+from . import util
+from . import callbacks
+from . import version
+from .core import Context
+from .core import Data
+
+# Interface hygiene.
+
+# Drop the low-level gpgme that creeps in for some reason.
+gpgme = None
+del gpgme
+
+# This is a white-list of symbols.  Any other will alert pyflakes.
+_ = [Context, Data, core, errors, constants, util, callbacks, version]
+del _
+
+__all__ = ["Context", "Data",
+           "core", "errors", "constants", "util", "callbacks", "version"]