This essentially tests tools/lint/python/flake8.py. Though it also adds
a basic framework for testing all the other linters as well. Getting this
added now will allow others to collaborate on adding more tests without
needing to get to 100% coverage for all linters right off the bat.
All python tests under tools/lint/test will run as part of the 'ml' task
on Linux, and the build task on Windows (OSX coverage is currently missing
for python tests).
The flake8 linter currently has a bug where the 'exclude' argument is
ignored. This is why we need to also exclude 'tools/lint/test/files' in
topsrcdir/.flake8, even though it is already listed in the
'mach_commands.py'. Other linters shouldn't need to do this, the exclusion
in 'mach_commands.py' should be good enough. See bug 1277851 for more
details.
MozReview-Commit-ID: 9ho8C83eeuj
--HG--
extra : rebase_source : 0adb01aa81c06f26cb891ae9f92a17f8f9fdf111
This is a new issue that gets linted with flake8 3.5.0. Basically you should
never use a blank except: statement.
This will catch all exceptions, including KeyboardInterrupt and SystemExit
(which is likely not intended). If a catch all is needed, use
`except: Exception`. If you *really* mean to also catch KeyboardInterrupt et
al, use `except: BaseException`.
Of course, being specific is often better than a catch all.
MozReview-Commit-ID: FKx80MLO4RN
--HG--
extra : rebase_source : 7c74a7d0d81f2c984b47aff3a0ee3448b791177b
This allows .flake8 files to override one another, and fixes a pretty bad known
bug with our flake8 implementation. For example, say we have a .flake8 file at:
/foo/.flake8
Before this patch, if we ran |mach lint foo/bar|, the configuration defined in
that .flake8 file wouldn't get picked up. It would only work if running the
specific directory that contains it, e.g |mach lint foo|.
This change additionally allows multiple .flake8 files to be used. So if
there's one defined at both:
/.flake8
/foo/.flake8
Then running |mach lint foo/bar| will first apply the root .flake8, then the
one under /foo (overriding earlier configuration).
This bug still doesn't make flake8 configuration perfect though. Any directory
containing a .flake8 file still needs to be explicitly listed in the "include"
section of /tools/lint/flake8.yml. Otherwise in the example above, if running
|mach lint /|, it wouldn't be able to find /foo/.flake8. This is a hard problem
and is likely best solved by fixing flake8's upstream configuration handling.
Unfortunately this means we still can't switch from a whitelist to a blacklist.
MozReview-Commit-ID: 3DZAi1QHYYo
--HG--
extra : rebase_source : 51298c5847f6c2792581d9b312c87b70fa716ee1
This also adds E402 (no imports at top of file) to the global ignore list. The
other error codes added were previously ignored by default, but now that we
have started a custom ignore list, need to be listed explicitly.
MozReview-Commit-ID: RtMuVEX6i5
--HG--
extra : rebase_source : 939bc9354f5891c680513d7e9068d0438e169132
If you run |mach eslint| it will install a bunch of eslint related node_modules. Some of these
modules have '.lint' files in them which erroneously get picked up by the flake8 linter. This
patch makes sure that bare '.lint' files do not get included, they must have some kind of file
name first.
MozReview-Commit-ID: IvBfErnV6jm
--HG--
extra : rebase_source : f8d7aea88a68d830b06c4591ac6862b02554d21c
For now, only the following two directories will be linted:
python/mozlint
tools/lint
New directories can be added by adding them to the 'include'
directive in tools/lint/flake8.lint. They all default to the
configuration specified in topsrcdir/.flake8. Subdirectories
can override this configuration by creating their own .flake8
file.
MozReview-Commit-ID: Eag48Lnkp3l
--HG--
extra : rebase_source : 6d98c9fef80055a48cc2622848aa04c3045b747e
Sylvestre Ledru
Andrew Halberstadt
James Graham
Prabhjyot Singh Sodhi
Wes Kocher