duplicity @0.8.15 fails to build

[khinsen (Konrad Hinsen)]

System info:

:debug:sysinfo macOS 10.14 (darwin/18.7.0) arch i386
:debug:sysinfo MacPorts 2.6.3
:debug:sysinfo Xcode 11.3.1
:debug:sysinfo SDK 10.14
:debug:sysinfo MACOSX_DEPLOYMENT_TARGET: 10.14

Error message from port install duplicity:

--->  Building duplicity
Error: Failed to build duplicity: command execution failed

See attached log for the details. The error message in the log file is:

:info:build   File "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/setuptools/installer.py", line 83, in fetch_build_egg
:info:build     raise DistutilsError('the `allow-hosts` option is not supported '
:info:build distutils.errors.DistutilsError: the `allow-hosts` option is not supported when using pip to install requirements.

[khinsen (Konrad Hinsen)]

Build log

[ryandesign (Ryan Carsten Schmidt)]

This means duplicity depends on some python module that has not been declared as a dependency in the duplicity port. We need to identify what module that is and add the dependency.

[iefdev (Eric F)]

This built fine for me when I updated it a few weeks back, but I got the same err now.

Can you try edit the portfile and change:

-depends_build-append    port:py${python.version}-setuptools \
+depends_build-append    port:py${python.version}-setuptools_scm \

[ryandesign (Ryan Carsten Schmidt)]

In 03efd456d9e3a076c95485a476eba587086dd4cc/macports-ports (master):

duplicity: Add py-setuptools_scm build dependency

Closes: #61180

[ryandesign (Ryan Carsten Schmidt)]

From setup.py, it requires both setuptools and setuptools_scm:

    setup_requires=[
        u"setuptools",
        u"setuptools_scm",
        ],

[iefdev (Eric F)]

Replying to ryandesign:

In 03efd456d9e3a076c95485a476eba587086dd4cc/macports-ports …

You're too fast. :–) Had a PR I had to close again.

[khinsen (Konrad Hinsen)]

Works fine - thanks a lot!