Passing `-e directory` multiple times attempts to install `-e` as a package

[ncoghlan]

pipenv install -e local/subdir1 -e local/subdir2 fails with an assertion traceback.

Version: 2018.05.18

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Expected result

That pipenv install -e local/subdir1 -e local/subdir2 would add both directories to Pipfile as editable installs, similar to the effect of pip install -e local/subdir1 -e local/subdir2.

Actual result

The second -e gets interpreted as a package to try to install, which then fails:

[snip successfully setting up the first editable install]
Installing -e…
Traceback (most recent call last):
  File "/home/ncoghlan/.local/bin/pipenv", line 11, in <module>
    sys.exit(cli())
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/cli.py", line 402, in install
    selective_upgrade=selective_upgrade,
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/core.py", line 1978, in do_install
    extra_indexes=extra_indexes,
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/core.py", line 1420, in pip_install
    package_name.split('--hash')[0].split('--trusted-host')[0]
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/utils.py", line 142, in get_requirement
    req = [r for r in requirements.parse(dep)][0]
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/utils.py", line 142, in <listcomp>
    req = [r for r in requirements.parse(dep)][0]
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/requirements/parser.py", line 50, in parse
    yield Requirement.parse(line)
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/requirements/requirement.py", line 218, in parse
    re.sub(r'^(-e|--editable=?)\s*', '', line))
  File "/home/ncoghlan/.local/lib/python3.5/site-packages/pipenv/vendor/requirements/requirement.py", line 123, in parse_editable
    assert local_match is not None, 'This should match everything'
AssertionError: This should match everything

Steps to replicate

1. Have two local directories that support being installed with pip -e local/subdir
2. Attempt to install them both as editable in a single command, rather than as separate commands

[techalchemy]

This makes me wonder why we are parsing this all manually instead of just using a command line flag. I’ve written so much custom handling around this by now it’s actually ridiculous. If it were a command line flag tied to install we could consume as many as we want

[uranusjr]

IIRC I asked this a while ago, and the answer is the option flag can’t do some things we need. I don’t remember what exactly it is though. Probably need to ask Kenneth. I am certainly +1 for using an click.option instead if there’s no technical difficulty.

[techalchemy]

I feel like I said that and I feel like I was wrong

[uranusjr]

Let’s do it then.