Since `google` is a Python namespace package, the google/__init__.py
file should be omitted to avoid collisions. For example, its presence
may cause other Pip packages in the google namespace not to be found.
This change narrows which __init__.py files are included in the
`//:protobuf_runtime` target to include only those under
`google/protobuf`. It also moves their canonical inclusion to the
internal `//:python_srcs` rule, eliminating the dual specification in
`python_protobuf.extra_srcs`.
This is the difference in files, lexicographically ordered:
```
$ bazel cquery 'labels(srcs, kind(py_library, deps(:protobuf_python)))' | sort > /tmp/deps-{before,after}.txt
$ diff /tmp/deps-{before,after}.txt
1,5d0
< //:python/compatibility_tests/v2.5.0/tests/__init__.py (null)
< //:python/compatibility_tests/v2.5.0/tests/google/__init__.py (null)
< //:python/compatibility_tests/v2.5.0/tests/google/protobuf/__init__.py (null)
< //:python/compatibility_tests/v2.5.0/tests/google/protobuf/internal/__init__.py (null)
< //:python/google/__init__.py (null)
51d45
< //:python/protobuf_distutils/protobuf_distutils/__init__.py (null)
```
This seems like a desirable change, since it avoids polluting other
packages, too.
This change is conceptually similar to #7877, but for Bazel.
In #713 and #1296, the `google` package in protobuf sources was found
to cause conflicts with other Google projects, because it was not
properly configured as a namespace package [1]. The initial fix in
786f80f addressed part of the issue, and #1298 fixed the rest.
However, 786f80f (the initial fix) also made `google.protobuf` and
`google.protobuf.pyext` into namespace packages. This was not correct:
they are both regular, non-namespace, sub-subpackages.
However (still), the follow-up #1298 did not nominate them as
namespace packages, so the namespace registration behavior has
remained, but without benefit.
This change removes the unnecessary namespace registration, which has
substantial overhead, thus reducing startup time substantially when
using protobufs.
Because this change affects the import internals, quantifying the
overhead requires a full tear-down/start-up of the Python interpreter.
So, to capture the full cost for every run, I measured the time to
launching a _fresh_ Python instance in a subprocess, varying the
imports and code under test. In other words, I used `timeit` to
measure the time to launch a _fresh_ Python subprocess which actually
performs the imports.
* Reference: normal Python startup (i.e., don't import protobuf at all).
```
% python3 -m timeit -s 'import subprocess' -r 3 -n 10 'subprocess.call(["python3", "-c", "pass"])'
10 loops, best of 3: 27.1 msec per loop
```
* Baseline: cost to import `google.protobuf.descriptor`, with
extraneous namespace packages.
```
% python3 -m timeit -s 'import subprocess' -r 3 -n 10 'subprocess.call(["python3", "-c", "import google.protobuf.descriptor"])'
10 loops, best of 3: 133 msec per loop
```
* This change: cost to import `google.protobuf.descriptor`, without
extraneous namespace packages.
```
% python3 -m timeit -s 'import subprocess' -r 3 -n 10 'subprocess.call(["python3", "-c", "import google.protobuf.descriptor"])'
10 loops, best of 3: 43.1 msec per loop
```
[1]: https://packaging.python.org/guides/packaging-namespace-packages/
wheel is required since version 3.13.0 and
ff92cee10b
This will result in the following build failure when cross-compiling:
Download error on https://pypi.org/simple/wheel/: unknown url type: https -- Some packages may not be found!
Couldn't find index page for 'wheel' (maybe misspelled?)
Download error on https://pypi.org/simple/: unknown url type: https -- Some packages may not be found!
No local packages or working download links found for wheel
Remove wheel requirement from setup.py as it is only needed by
release.sh, not by setup.py
Fixes:
- http://autobuild.buildroot.org/results/371c686a10d6870933011b46d36b1879d29046b9
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
This updates README.md to use an example with pip instead of setup.py.
The README.md is then used as the long_description argument to setup(),
so that the doc shows up on pypi.
This extension allows Python code to be generated from setup.py files, so they
are created as part of a normal Python build. The extension uses an already-existing
protoc binary, which can be explicitly specified if needed.
This commit makes a couple of fixes:
- Make sure we always update the suffix, since even for a non-RC release
we need to clear the suffix.
- Make sure the suffix is properly quoted and begins with -rc
See https://docs.gradle.org/current/userguide/java_library_plugin.html
> The compile, testCompile, runtime and testRuntime configurations inherited from the Java plugin are still available but are deprecated. You should avoid using them, as they are only kept for backwards compatibility.
UnknownField::AddAll() is called (multiple times) from UnknownField::MergeFrom(). The `extras` parameter is one of: `varintList`, `fixed32List`, `fixed64List`, `lengthDelimitedList`, or `groupList`. All of these members can be null, and are appropriately checked in other usage. If attempting to parse a proto with unknown extensions, and exception is thrown (NRE).
This adds the appropriate null check inside UnknownField::AddAll().
Fixes#7493
By removing all test files from the distribution, we've reduced the .whl
file size from 1259808B (1.2MB) to 996042B (973K), which is 21% reduction,
And reduced the unpacked size from 5317178B (5.1MB) to 3251811B (3.2MB),
which is 39% reduction.
Size was measured for the protobuf-3.11.3-cp35-cp35m-manylinux1_x86_64.whl release.
We may need the shell environment (potentially augmented with
`--action_env`) to invoke protoc on Windows. If protoc was built with
mingw, it probably needs .dll files in non-default locations that must be
in PATH. Previously with `--compiler=mingw-gcc`,
`bazel build //:gen_well_known_protos_java` would fail on Windows. This
CL fixes the issue.
Also we have `default_shell_env` set to True for `ProtoCompile`, this makes
the behavior consistent.
See #2933, and
585a27ad0a/proto/compiler.bzl (L130)
Using default production Android build and protobuf-lite leads to RuntimeExceptions. The workarounds are documented in issues and I took those discussions and summarized them in the lite.md file.
Now that 3.13.0 has been released, this commit updates CHANGES.txt to
mention 3.13.0 instead of 3.13.0-rc1 and to include the recent PHP
changes. I also added a short explanation of the 3.12.4 release.
Fixes#7820.
Joshua Haberman
Robin Linden
Robert Yokota
David L. Jones
Fabrice Fontaine
James Brock
Yuriy Chernyshov
xiaahui
Keith Smiley
Romain Geissler
Masaki Hara
Adam Cozzette
Lőrinc Pap
CauhxMilloy
Misha Seltzer
Afshin Pir
Adam Yi
Mathijs Vogelzang
Saurabh Singhal