Added option to specify diff file location

[Jsostmann]

Added a flag to accept a path which points to a file containing the output of git diff

ex: diff-cover coverage_folder/coverage.xml --html-report report.html --diff-file=diff.txt

[Bachmann1234]

Neat, thanks for the PR.

to merge this ill. need tests.

I also think the file tool is strongly dependent on the diff format diff-cover uses. So some documentation on how to generate the diff file in the readme would be nice.

[Jsostmann]

No problem. And okay sure thing.
I'll add some tests / documentation and update the PR.

Thanks for the quick reply!

[Jsostmann]

@Bachmann1234 Have added documentation and 4 UT for the diff file tool

[Bachmann1234]

@Jsostmann looks like you just have to run black over the pr to format things. Then this is looking good!

Thanks!

[Jsostmann]

@Jsostmann looks like you just have to run black over the pr to format things. Then this is looking good!

Thanks!

Awesome! and Thanks I'll go ahead and reformat using black.

[Bachmann1234]

Ah jeez. My bad. I forgot to mention isort which formats the imports

[Jsostmann]

Ah jeez. My bad. I forgot to mention isort which formats the imports

Haha no worries! I should've caught that also. I didn't run verify.sh before pushing

[Bachmann1234]

Awesome. Build is passing I should be able to get this merged and released soon. Hoping for tonight

[Jsostmann]

Awesome. Build is passing I should be able to get this merged and released soon. Hoping for tonight

Great! No rush, I appreciate the help!

[vser1]

Thanks a lot @Jsostmann for the feature and @Bachmann1234 for your great work on this most helpful project!
This PR should close #26 , #150 , and possibly #16 (with some additional client-side work). Looking forward for a 9.1.0! 🎉

[Bachmann1234]

Alrighty, lets get this merged. Thanks for the PR @Jsostmann !

[Bachmann1234]

Check out version 9.1.0! https://pypi.org/project/diff-cover/9.1.0/

thanks again

[Jsostmann]

Thanks a lot @Jsostmann for the feature and @Bachmann1234 for your great work on this most helpful project!

This PR should close #26 , #150 , and possibly #16 (with some additional client-side work). Looking forward for a 9.1.0! 🎉

Sure thing! Hope it helps!

[Jsostmann]

Alrighty, lets get this merged. Thanks for the PR @Jsostmann !

Awesome! Sure thing!

[chkch]

@Jsostmann May I ask if there is validation for diff file=diff. txt to support Jacoco generated XML full coverage reports? I recently encountered an issue while generating incremental reports based on multiple XML full coverage reports in a Java project.
The execution steps are as follows:
git diff master test > diff.txt
diff-cover report_*.xml --diff-file=diff.txt
Prompt me: No lines with coverage information in this diff

[Jsostmann]

Hey @chkch did you check to make sure that the diff file you created had any changes?