Adding support for gzipped ASC logging file (.asc.gz)

[pierreluctg]

Eventually it would be nice if we could support other "compressor" (zip, bz2, lzma, tar, etc.) automatically by extension detections. I will leave this to future improvements.

[codecov]

Codecov Report

Merging #1138 (a234bc9) into develop (4db969d) will increase coverage by 0.13%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #1138      +/-   ##
===========================================
+ Coverage    70.88%   71.01%   +0.13%     
===========================================
  Files           79       79              
  Lines         7768     7790      +22     
===========================================
+ Hits          5506     5532      +26     
+ Misses        2262     2258       -4     

[hardbyte]

Doesn't Python make that easy!

Looks good to me.

[felixdivo]

An example (in a test case) would be nice, but still a good feature! 👍

[felixdivo]

Maybe one could also add a very minimalistic test similar to this. Whoops, there is also a copy-paste error in that line, I will fix that.

[pierreluctg]

Maybe one could also add a very minimalistic test similar to this. Whoops, there is also a copy-paste error in that line, I will fix that.

Thank you for the typo fix.

I am working in a full set of unit tests and few other changes since the current code do not really work with x.y file extensions (https://github.com/hardbyte/python-can/blob/develop/can/io/logger.py#L78 and https://github.com/hardbyte/python-can/blob/develop/can/io/player.py#L78 expect a single extension/suffix).

This is why I kept the work-in-progress label.

This PR is not technically broken without the logger and player changes. But I would like to make it more complete.

[felixdivo]

Sounds great @pierreluctg!