Using --rcfile=/path/to/tox.ini uses [run] section rather than [coverage:run]

[nedbat]

Originally reported by David Sanders (Bitbucket: rapilabs, GitHub: rapilabs)

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Was trying to get a setup for a project happening where tox.ini was one directory up from where coverage was being run. Found it was necessary to specify the location with --rcfile but surprsingly found that the section must be named [run].

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• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/588

[nedbat]

Interesting case. When you specify an exact filename, the config code thinks you are pointing to a .coveragerc file, and reads it as such. Only if you let the filename default, does it know it is looking at a tox.ini.

There are a few ways we could change this behavior:

1. Always look for [coverage:run] before [run], no matter how we got to the file.
2. Let you specify a directory with --rcfile, then it will know it is looking at a tox.ini file because it cycled through the filenames looking for the file
3. Check the filename of the path, and if it's "tox.ini", know to look for [coverage:run]

I like 3 the least. 2 is interesting because we've never allowed directories before, so it (probably) won't break anything. 1 seems most appealing, since it seems bullet-proof. Why wouldn't we read a [coverage:run] section if we found it in a .coveragerc file?

[nedbat]

Original comment by David Sanders (Bitbucket: rapilabs, GitHub: rapilabs)

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I like your reasoning! :)

[nedbat]

Fixed in e9937fd58c19 (bb)

[nedbat]

This has shipped in 4.4.2