Rename //rules_python package to //packaging (#228)

This avoids a name clash between the package name and the repo name, which
prevented whl_test from running in the Bazel federation's CI.

Regenerated the par files.

Tested that this still works in environments where the system Python has a
library named "packaging" installed, by creating a virtualenv, pip installing
"packaging", and running `bazel test //examples/...`.

Fixes #227.

Author: brandjon

.bazelci/presubmit.yml

@@ -8,8 +8,8 @@ all_targets: &all_targets
     build_targets:
     - "//examples/..."
     - "//experimental/..."
+    - "//packaging/..."
     - "//python/..."
-    - "//rules_python/..."
     - "//tools/..."
     test_targets:
     - "..."

rules_python/BUILD packaging/BUILDrules_python/BUILD renamed to packaging/BUILD

@@ -11,7 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-package(default_visibility = ["//visibility:public"])
 
 licenses(["notice"])  # Apache 2.0
 

rules_python/piptool.py packaging/piptool.pyrules_python/piptool.py renamed to packaging/piptool.py

@@ -81,7 +81,7 @@ def pip_main(argv):
     argv = ["--disable-pip-version-check", "--cert", cert_path] + argv
     return pip.main(argv)
 
-from rules_python.whl import Wheel
+from packaging.whl import Wheel
 
 parser = argparse.ArgumentParser(
     description='Import Python dependencies into Bazel.')

rules_python/whl.py packaging/whl.pyrules_python/whl.py renamed to packaging/whl.py

@@ -17,7 +17,7 @@
 
 from mock import patch
 
-from rules_python import whl
+from packaging import whl
 
 
 def TestData(name):

rules_python/whl_test.py packaging/whl_test.pyrules_python/whl_test.py renamed to packaging/whl_test.py

@@ -25,11 +25,11 @@ RUN bazel help info >/dev/null 2>&1
 CMD cp -r /opt/rules_python_source /opt/rules_python && \
     cd /opt/rules_python && \
     bazel clean && \
-    bazel build //rules_python:piptool.par //rules_python:whltool.par \
+    bazel build //packaging:piptool.par //packaging:whltool.par \
         # This works around a bug in git_repository to give us better debugging
         # if there's an error.
         # TODO(brandjon): Remove this once we're using Bazel 0.29, which
         # contains the fix.
         --incompatible_string_join_requires_strings=false && \
-    cp bazel-bin/rules_python/piptool.par bazel-bin/rules_python/whltool.par /opt/rules_python_source/tools/ && \
+    cp bazel-bin/packaging/piptool.par bazel-bin/packaging/whltool.par /opt/rules_python_source/tools/ && \
     chown --reference=/opt/rules_python_source/update_tools.sh /opt/rules_python_source/tools/piptool.par /opt/rules_python_source/tools/whltool.par

tools/piptool.par

@@ -25,9 +25,9 @@ if [ "$#" -eq 0 ] ; then
   docker build --no-cache -f tools/update_tools/Dockerfile --tag rules_python:update_tools .
   docker run -v"$PWD":/opt/rules_python_source rules_python:update_tools
 elif [ "$#" -eq 1 -a "$1" == "--nodocker" ] ; then
-  bazel build //rules_python:piptool.par //rules_python:whltool.par
-  cp bazel-bin/rules_python/piptool.par tools/piptool.par
-  cp bazel-bin/rules_python/whltool.par tools/whltool.par
+  bazel build //packaging:piptool.par //packaging:whltool.par
+  cp bazel-bin/packaging/piptool.par tools/piptool.par
+  cp bazel-bin/packaging/whltool.par tools/whltool.par
 else
   usage
 fi