New package: py-tensorflow-hub (#23034)

* orginal version of tensorflow-hub

* [py-tensorflow-hub] updated url to pypi.io

* [py-tensorflow-hub] added version 0.12.0

* [py-tensorflow-hub] flake8

* [py-tensorflow-hub] Full package rewrite from @aweits

* [py-tensorflow-hub] added @aweits as maintainer

* [py-tensorflow-hub] flake8

* [py-tensorflow-hub] lots of join_path

* [py-tensorflow-hub] cleanup tmp_path/insttmp_path post install

* [py-tensorflow-hub] depends on setuptools

* [py-tensorflow-hub] fixing quoting

Co-authored-by: Sid Pendelberry <sid@rit.edu>

var/spack/repos/builtin/packages/py-tensorflow-hub/package.py

@@ -0,0 +1,75 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+import tempfile
+
+
+class PyTensorflowHub(Package):
+    """TensorFlow Hub is a library to foster the publication, discovery, and
+    consumption of reusable parts of machine learning models."""
+
+    homepage = "https://github.com/tensorflow/hub"
+    url = "https://github.com/tensorflow/hub/archive/refs/tags/v0.12.0.tar.gz"
+
+    maintainers = ['aweits']
+
+    version('0.12.0', sha256='b192ef3a9a6cbeaee46142d64b47b979828dbf41fc56d48c6587e08f6b596446')
+    version('0.11.0', sha256='4715a4212b45531a7c25ada7207d850467d1b5480f1940f16623f8770ad64df4')
+
+    extends('python')
+
+    depends_on('bazel', type='build')
+    depends_on('py-setuptools', type='build')
+    depends_on('python@3.6:',        type=('build', 'run'))
+    depends_on('py-numpy@1.12.0:',   type=('build', 'run'))
+    depends_on('py-protobuf@3.8.0:',   type=('build', 'run'))
+
+    def install(self, spec, prefix):
+        tmp_path = tempfile.mkdtemp(prefix='spack')
+        env['TEST_TMPDIR'] = tmp_path
+        env['HOME'] = tmp_path
+        args = [
+            # Don't allow user or system .bazelrc to override build settings
+            '--nohome_rc',
+            '--nosystem_rc',
+            # Bazel does not work properly on NFS, switch to /tmp
+            '--output_user_root=' + tmp_path,
+            'build',
+            # Spack logs don't handle colored output well
+            '--color=no',
+            '--jobs={0}'.format(make_jobs),
+            # Enable verbose output for failures
+            '--verbose_failures',
+            # Show (formatted) subcommands being executed
+            '--subcommands=pretty_print',
+            '--spawn_strategy=local',
+            # Ask bazel to explain what it's up to
+            # Needs a filename as argument
+            '--explain=explainlogfile.txt',
+            # Increase verbosity of explanation,
+            '--verbose_explanations',
+            # bazel uses system PYTHONPATH instead of spack paths
+            '--action_env', 'PYTHONPATH={0}'.format(env['PYTHONPATH']),
+            '//tensorflow_hub/pip_package:build_pip_package',
+        ]
+
+        bazel(*args)
+
+        runfiles = join_path('bazel-bin', 'tensorflow_hub', 'pip_package',
+                             'build_pip_package.runfiles', 'org_tensorflow_hub')
+        insttmp_path = tempfile.mkdtemp(prefix='spack')
+        install(join_path('tensorflow_hub', 'pip_package', 'setup.py'),  insttmp_path)
+        install(join_path('tensorflow_hub', 'pip_package', 'setup.cfg'), insttmp_path)
+        install('LICENSE', join_path(insttmp_path, 'LICENSE.txt'))
+        mkdirp(join_path(insttmp_path, 'tensorflow_hub'))
+        install_tree(join_path(runfiles, 'tensorflow_hub'),
+                     join_path(insttmp_path, 'tensorflow_hub'))
+
+        with working_dir(insttmp_path):
+            setup_py('install', '--prefix={0}'.format(prefix),
+                     '--single-version-externally-managed', '--root=/')
+
+        remove_linked_tree(tmp_path)
+        remove_linked_tree(insttmp_path)