Deepmind Tree Bazel Build Portfile Help Request

Steven Smith steve.t.smith at gmail.com
Tue Jul 7 11:31:11 UTC 2020


Thanks to your help, I’ve been able to edit setup.py akin to what you’ve done in py-tensorflow and have solved the long timeout issue, but not the underlying cause of the hang.

The command:

> sudo port build py37-dm-tree

fails to build (with no reported errors, except that it fails). However, running the python build command by hand in ${worksrcpath} works:

> sudo -u macports bash -c 'python3.7 setup.py --no-user-cfg build -j6'

I don’t know enough about “the wonderful bazel build system …” to troubleshoot, but I have a few hypotheses:
There’s some issue with handling bazel output when run within the port command
There’s some issue with bazel downloading [???] things it needs when run within port (e.g. in this case it’s getting @com_google_absl from somewhere)

Any pointers would be appreciated. I don’t see <https://github.com/macports/macports-ports/search?q=bazel&unscoped_q=bazel> any existing Portfiles that use bazel from within a setup.py. I’ve attached the draft Portfile and setup.py.patch below.


By the way, a successful by-hand build produces many SUBCOMMAND lines like this:

> SUBCOMMAND: # @com_google_absl//absl/numeric:int128 [action 'Linking external/com_google_absl/absl/numeric/libint128.a', configuration: e2b2526ee351b893fa655145c6fbfa76bc6002a7b6841de71a5ce32b31c693d5]
> (cd /opt/local/var/macports/build/_opt_local_ports_python_py-dm-tree/py37-dm-tree/work/760db6fa436447021e976cb8885c1247/execroot/tree && \
>   exec env - \
>     APPLE_SDK_PLATFORM=MacOSX \
>     APPLE_SDK_VERSION_OVERRIDE=10.15 \
>     PATH='/opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Applications/VMware Fusion.app/Contents/Public:/opt/X11/bin:/Applications/Server.app/Contents/ServerRoot/usr/bin:/Applications/Server.app/Contents/ServerRoot/usr/sbin:/Library/Apple/usr/bin:/usr/local/bin' \
>     XCODE_VERSION_OVERRIDE=11.5.0.11E608c \
>   external/local_config_cc/libtool -no_warning_for_no_symbols -static -o bazel-out/darwin-opt/bin/external/com_google_absl/absl/numeric/libint128.a bazel-out/darwin-opt/bin/external/com_google_absl/absl/numeric/_objs/int128/int128.o)




Draft Portfile:

> # -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
> 
> PortSystem          1.0
> PortGroup           compiler_blacklist_versions 1.0
> PortGroup           github 1.0
> PortGroup           java 1.0
> PortGroup           python 1.0
> PortGroup           xcode_workaround 1.0
> 
> github.setup        deepmind tree 2b81872
> # no official release; version from __init__.py plus github commit date
> version             0.1.6.20200524
> name                py-dm-${github.project}
> revision 0
> 
> platforms           darwin
> license             Apache-2
> maintainers         nomaintainer
> 
> description         Deepmind tree is a library for working with nested\
>                     data structures.
> long_description    ${description} In a way, tree generalizes the builtin\
>                     map function which only supports flat sequences, and\
>                     allows to apply a function to each "leaf" preserving\
>                     the overall structure.
> 
> homepage            https://github.com/deepmind/tree
> distname            ${github.project}-${version}
> 
> checksums           rmd160  40518b306e8f5a80b12ef5e76ca9e2f8ef232de3 \
>                     sha256  0748428f70fae2209b8763bf99cadaf22276a4391851ba919dce9d3d0bc047bf \
>                     size    35176
> 
> python.versions     37 38
> 
> # Required java version
> java.version        11+
> # JDK port to install if required java not found
> java.fallback       openjdk14
> # JDK only needed at build time, but java PG sets lib dependency so
> # declare no conflict to allow redistribution of binaries.
> license_noconflict  ${java.fallback}
> 
> # require c++14
> compiler.cxx_standard 2014
> 
> # The oldest Xcode version to use default Xcode compiler
> # https://github.com/tensorflow/tensorflow/issues/39262
> set tf_min_xcode    10.2
> compiler.blacklist-append {clang < 1001}
> # Work out if we should be using macports clang
> set use_mp_clang [ expr ( [ string match macports-clang-* ${configure.compiler} ] || [ vercmp ${xcodeversion} ${tf_min_xcode} ] < 0 ) ]
> 
> proc python_listify {tcl_list} {
>     set python_list {}
>     foreach item [lreverse ${tcl_list}] {
>         set python_list "'${item}', ${python_list}"
>     }
>     return ${python_list}
> }
> 
> if {${name} ne ${subport}} {
>     depends_build-append \
>                     port:bazel \
>                     port:py${python.version}-setuptools
> 
>     depends_run-append \
>                     port:py${python.version}-six \
> 
>     depends_test-append \
>                     port:py${python.version}-absl \
>                     port:py${python.version}-attrs \
>                     port:py${python.version}-numpy \
>                     port:py${python.version}-pytest \
>                     port:py${python.version}-wrapt
> 
>     # Limit the number of parallel jobs to the number of physical, not logical, cpus.
>     # First current setting to ensure we would be reducing the current setting.
>     set physicalcpus [sysctl hw.physicalcpu]
>     if { ${build.jobs} > ${physicalcpus} } {
>         build.jobs ${physicalcpus}
>     }
> 
>     # Build using the wonderful bazel build system ...
>     set bazel_cmd "bazel --max_idle_secs=60 --output_user_root=${workpath}"
>     set bazel_build_opts "--subcommands --compilation_mode=opt --verbose_failures"
>     # Limit bazel resource utilisation
>     set bazel_build_opts "${bazel_build_opts} --jobs ${build.jobs} --local_ram_resources=HOST_RAM*0.75 --local_cpu_resources=HOST_CPUS*.75"
>     # Explicitly pass SDK https://github.com/bazelbuild/rules_go/issues/1554
>     # Check versioned SDK actually exists... https://trac.macports.org/ticket/60317
>     if {[string first ${configure.sdk_version} ${configure.sdkroot}] != -1} {
>         set bazel_build_opts "${bazel_build_opts} --macos_sdk_version=${configure.sdk_version}"
>     } else {
>         ui_warn "configure.sdkroot='${configure.sdkroot}' does not match configure.sdk_version='${configure.sdk_version}'"
>     }
>     # hack to try and transfer MP c, c++ and ld options to bazel...
>     foreach opt [list {*}${configure.cflags} ] {
>         set bazel_build_opts "${bazel_build_opts} --conlyopt \"${opt}\""
>     }
>     foreach opt [list {*}${configure.cxxflags} ] {
>         set bazel_build_opts "${bazel_build_opts} --cxxopt \"${opt}\""
>     }
>     foreach opt [list {*}${configure.ldflags} ] {
>         set bazel_build_opts "${bazel_build_opts} --linkopt \"${opt}\""
>     }
>     if { ${use_mp_clang} } {
>         set bazel_build_opts "${bazel_build_opts} --action_env CC=${configure.cc}"
>         set bazel_cmd "BAZEL_USE_CPP_ONLY_TOOLCHAIN=1 ${bazel_cmd}"
>     }
>     ui_debug "Bazel build command : ${bazel_cmd}"
>     ui_debug "Bazel build options : ${bazel_build_opts}"
> 
>     # diff -NaurdwB ./dm-tree-orig/setup.py ./dm-tree-new/setup.py | sed -E -e 's/\.\/dm-tree-(orig|new)*\/(setup\.py)(\.[[:alnum:]]+)*/\.\/setup.py/' > ./setup.py.patch
>     patchfiles      setup.py.patch
> 
>     post-patch {
>         reinplace \
>             "s|@BAZEL_CMD@|[python_listify ${bazel_cmd}]|g" \
>             ${worksrcpath}/setup.py
>         reinplace \
>             "s|@BAZEL_BUILD_OPTS@|[python_listify ${bazel_build_opts}]|g" \
>             ${worksrcpath}/setup.py
>     }
> 
>     build.env-append \
>         TMPDIR=${workpath}/tmp \
>         JAVA_HOME=${java.home}
> 
>     test.run        yes
>     test.cmd        py.test-${python.branch}
>     test.target
>     test.env-append \
>                     "PATH=$env(PATH):${workpath}/bin" \
>                     PYTHONPATH=${worksrcpath}/build/lib
> 
>     post-destroot {
>         set docdir ${prefix}/share/doc/${subport}
>         xinstall -d ${destroot}${docdir}
>         xinstall -m 0644 -W ${worksrcpath} LICENSE README.md \
>             ${destroot}${docdir}
>     }
> 
>     livecheck.type      none
> } else {
>     livecheck.type      pypi
> }

Draft setup.py.patch:

> --- ./setup.py	2020-07-05 09:50:12.000000000 -0400
> +++ ./setup.py	2020-07-07 06:55:37.000000000 -0400
> @@ -90,11 +90,11 @@
>        os.makedirs(self.build_temp)
>  
>      bazel_argv = [
> -        'bazel',
> +        @BAZEL_CMD@
>          'build',
> +        @BAZEL_BUILD_OPTS@
>          ext.bazel_target,
>          '--symlink_prefix=' + os.path.join(self.build_temp, 'bazel-'),
> -        '--compilation_mode=' + ('dbg' if self.debug else 'opt'),
>      ]
>  
>      if IS_WINDOWS:





> On Jul 6, 2020, at 1:22 PM, Steven Smith <steve.t.smith at gmail.com> wrote:
> 
> I’ll go try the settings you’re using with “the wonderful bazel build system ...”

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