Get Gitlab CI coverage with flow coverage report - gitlab

Question

I'm using flow-coverage-report to get the coverage rate of my code by Flow. I've added a job in my Gitlab CI pipeline to execute it and retrieve the coverage rate.
jobName:
stage: stage
script:
- ./node_modules/.bin/flow-coverage-report
coverage: /MyProject\s*│\s*([\d\.]+)/
The output of the script is a lot of lines and more particularly :
┌───────────┬─────────┬───────┬─────────┬───────────┐
│ project │ percent │ total │ covered │ uncovered │
│ MyProject │ 87 % │ 62525 │ 54996 │ 7529 │
└───────────┴─────────┴───────┴─────────┴───────────┘
They are not using the pipe character | for the table, but │
When I debug the regex with Rubular as explained in the GitLab Documentation, I get the right result in the matching group.
However, every time my job finishes, it does not have any coverage value. Am I missing something ? Are the characters displayed differently ?
Note : I have no problems with Jest coverage for example.

Answer 1

Alright, after digging in the code and other places, I've found the culprit => colors in the output.
The first line of the table above was actually displayed in green !
So to have the correct value interpreted by the GitLab regex, one can include the colors in the regex or just strip the colors like I did :
./node_modules/.bin/flow-coverage-report | sed -r "s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[mGK]//g"
Thanks to this answer.
Hope it helps.