This ensures the proper version is reported in the server status
information; otherwise it has a '-PRERELEASE' suffix.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
FoundationDB uses Python at build time for some code generation.
However, it also has the official python bindings inside the source code
too, and the code for the Python bindings has some of it auto-generated
at compile time.
This made building python packages unattractive: we want to use the
source code generated from the FoundationDB build, but we don't want to
rebuild it. Previously we would override the 'python' input to the
FoundationDB module, but this meant we would do a complete rebuild, as
it was a necessary build time dependency, even though the resulting
generated code itself would not change. Furthermore, FoundationDB
versions < 6.0 don't properly support Python 3 *for the build system*,
though the bindings supported it, so that caused build failures. But the
first effect is the worst: it meant building separate python2 and
python3 packages implied two complete rebuilds of a single FoundationDB
version. This meant rather than 3 FDB builds, we'd do 3*N where N = the
number of major Python versions we support.
Finally, because we did not use pip to generate a wheel that we install
with metadata recorded for the installation, the FoundationDB python
package couldn't be used as an input to other setup.py-based packages:
there would be no recorded metadata in the dist-info folder which would
say this is the foundationdb package. This greatly limits its utility.
To fix all this, we do a few things:
- Apply some patches to fix the build system with Python 3.x for
older FoundationDB versions. (This is nice if end-users have
overridden the global Python version for some reason.)
- Move python directly into nativeBuildInputs, so it is only a
build time dependency.
- Take the python source code from the ./bindings directory and
tar it up use later after the build is done, so we get to keep
the generated code. This is the new 'pythonsrc' output from the
build. This code doesn't change based on whether or not the input
or resulting package is using Python 2 or 3, it's totally
deterministic.
- The build system also patches up the python source code a little,
so it can be installed directly with setup.py (it needs a little
stuff that it normally expects the build system to do.)
- Rework the python package to a separate file that uses
buildPythonPackage directly. Because the source code is already
prepared, it needs almost nothing else. Furthermore, this kills
the override itself for the foundationdb package, meaning rebuilds
are no longer needed.
- This package is very simple and just uses foundationdb.pythonsrc
as its source input. It also ensures a link to libfdb_c.so can
be found by ctypes (using substituteInPlace)
- python-packages.nix now just uses callPackage directly.
The net effect of this is, most importantly, that python packages do not
imply a full rebuild of the server source code: building python2 and
python3 packages from a version of FoundationDB now does not need to
override the foundationdb python input, reducing the number of needless
builds. They instead just run setup.py with the given version as input.
The second biggest effect is that wheel metadata is recorded correctly,
meaning dependent-python-packages that want to use the FoundationDB
bindings e.g. from PyPi should now work fine with buildPythonPackage.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Based on reports X wouldn't start out of the box and seems OK now.
In case there are still some problems, we can improve later.
I checked that nixos.tests.virtualbox.* still succeed.
With this commit, we *can* swap python2 for python3 to run synapse using python3
instead.
The reason for not making the switch is that a number of CLI tools provided with
synapse do not yet work under py3 despite synapse running fine.
So this doesn't actually do anything on its own except to prepare for the
upcoming py3 switch.
* Added license: GPLv2.
* Updated homepage and description.
* CFLAGS are no longer necessary as of version 2.2.0.
* Option '-a ::' is no longer necessary as of version 2.2.0.
Undefined symbols for architecture x86_64:
"_NSDefaultRunLoopMode", referenced from:
_X11ApplicationMain in libXquartz.a(X11Application.o)
"_OBJC_CLASS_$_NSArray", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
objc-class-ref in libXquartz.a(X11Controller.o)
objc-class-ref in libxpbproxy.a(x-selection.o)
"_OBJC_CLASS_$_NSData", referenced from:
objc-class-ref in libxpbproxy.a(x-selection.o)
"_OBJC_CLASS_$_NSDictionary", referenced from:
objc-class-ref in libxpbproxy.a(x-selection.o)
"_OBJC_CLASS_$_NSMutableArray", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
objc-class-ref in libXquartz.a(X11Controller.o)
"_OBJC_CLASS_$_NSMutableDictionary", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
"_OBJC_CLASS_$_NSRunLoop", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
"_OBJC_CLASS_$_NSURL", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
"_OBJC_EHTYPE_$_NSException", referenced from:
GCC_except_table29 in libxpbproxy.a(x-selection.o)
ld: symbol(s) not found for architecture x86_64
Undefined symbols for architecture x86_64:
"_NSDefaultRunLoopMode", referenced from:
_X11ApplicationMain in libXquartz.a(X11Application.o)
"_OBJC_CLASS_$_NSArray", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
objc-class-ref in libXquartz.a(X11Controller.o)
objc-class-ref in libxpbproxy.a(x-selection.o)
"_OBJC_CLASS_$_NSData", referenced from:
objc-class-ref in libxpbproxy.a(x-selection.o)
"_OBJC_CLASS_$_NSDictionary", referenced from:
objc-class-ref in libxpbproxy.a(x-selection.o)
"_OBJC_CLASS_$_NSMutableArray", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
objc-class-ref in libXquartz.a(X11Controller.o)
"_OBJC_CLASS_$_NSMutableDictionary", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
"_OBJC_CLASS_$_NSRunLoop", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
"_OBJC_CLASS_$_NSURL", referenced from:
objc-class-ref in libXquartz.a(X11Application.o)
"_OBJC_EHTYPE_$_NSException", referenced from:
GCC_except_table29 in libxpbproxy.a(x-selection.o)
ld: symbol(s) not found for architecture x86_64
Undefined symbols for architecture x86_64:
"_CFNotificationCenterAddObserver", referenced from:
_main in main.o
"_CFNotificationCenterGetDistributedCenter", referenced from:
_main in main.o
"_OBJC_CLASS_$_NSTimer", referenced from:
objc-class-ref in main.o
objc-class-ref in x-screen.o
"_OBJC_EHTYPE_$_NSException", referenced from:
GCC_except_table25 in main.o
ld: symbol(s) not found for architecture x86_64
Also reworked dependencies:
* blist and ujson are marked as no longer needed
* pytz has no mention throughout `git log -p` on synapse's repository
* systemd and affinity are optional (but turned on by default)
ee58a5b30d broke the plv8 build because it
upgraded the v8_6_x expression everywhere to the 6.9 branch, which came
with API changes. Notably, it seems plv8 only supports up-to v8 6.4.x at
this time.
This keeps a copy of the plv8_6_x expression inside the same directory
as the other v8 versions (so patches, etc are easy to apply), but it is
not exposed to the top-level of all-packages.nix.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
