codecov with travis in public repository requires token

[dariober]

Hi- I'm experiencing the same issue reported here. In my case I have:

• A public repository using travis (simulate-parasite-infection)

• In .travis.yml I have:

...
after_success:
    - Rscript tests/covr.R 

and the covr.R script is:

library(covr)
setwd('tests')
xcov <- file_coverage(source_files= '../R/simulation_runner.R', test_files=  c('test_simulation_runner.R'))

codecov(coverage= xcov, token= '853ba810-ff8b-4cc2-9834-3f3817687feb')

This works. But if I remove the token argument I get:

codecov(coverage= xcov)
Error in if (file.exists(path_to_yaml)) { : argument is of length zero

Is this intentional or a bug? I'm using covr 3.5.1. Earlier versions of covr (e.g. 3.2.1) used to work without specifying the token.

Thanks!