Add option to skip binding a field

[jlblancoc]

This commit is based on a larger commit by @charbeljc in https://github.com/RosettaCommons/binder/pull/160 but manually cherry-picking just the "-field" feature.

[jlblancoc]

Sure! One doubt: what version of clang-format are you using to format the files? I tried clang-format-11 and clang-format-15 and both changes much more than just my changes...

[lyskov]

@jlblancoc re clang-format version: unless i am mistaken it was v13

[jlblancoc]

Hi @lyskov ! It's done now:

• You were right, the space trimming code wasn't needed. It's removed.
• Added a unit test. See https://github.com/RosettaCommons/binder/pull/257/commits/630cf4435ec0ab96dd5848017078a1001db3ef90

There are other weird things I noticed in the way, but kept changes minimal in this PR anyway, please check them for subsequent commits?:

• test/self-test.py only works with python2.7. I had to manually change a couple of lines to make it work with python3.
• no clang-format version seems to be actually applied to existing sources (some of them). Please, check if running "clang-format-XX -i FILE" on all sources make changes for you too, and commit them so it's easier to keep the formatting for contributors :-)
• It's confusing why only part of the test/*.hpp files are handled at the cmake + make test level, but then there is an apparently independent way to run tests via "build-and-run-tests.py" (??).

That said... congrats for the huge project, it literally made my life easier :-)

[lyskov]

Thank you for your feedback and for adding test for this @jlblancoc !

• test/self-test.py only works with python2.7. I had to manually change a couple of lines to make it work with python3.

-- yes, thank you for brining this up! I am aware of this and will escalate update to Python-3.

• no clang-format version seems to be actually applied to existing sources (some of them).

-- thank you for letting me know! Looks like quite a few changes got accumulated since last clang format run, - i will looks this up.

• It's confusing why only part of the test/*.hpp files are handled at the cmake + make test level, but then there is an apparently independent way to run tests via "build-and-run-tests.py" (??).

-- cmake tests does not compare test results (only makes sure that results is compilable) and they also require system-wide install of LLVM which is not always practical during development.

Again, thank you for your PR and feedback @jlblancoc ! I will merge this shortly.

[jlblancoc]

Got it. Thanks you!