replace codecov with coveralls

[ygj6]

• Replace codecov with coveralls

It works for my repo. But I'm not sure whether it works for the msgpack repo.

• Install dependencies in the folders outside the workspace

The reports generated by coveralls will include dependencies if the dependencies are installed inside the workspace . So I installed gtest to /usr/local/ and boost to ~/boost/.
Why not install boost to /usr/local/? The actions/cache has no permission to do it.

• Extract function (installing gtest) into a script (gtest.sh)

[ygj6]

The reports of coveralls is here:
https://coveralls.io/github/msgpack/msgpack-c

[redboltz]

I created #838 to test on msgpack repository.

[redboltz]

I think that the coverage data uploaded successfully.
See
https://coveralls.io/builds/28513840

But when I tried to see the file coverage, I got 500 error.
For example clieck TREE include/msgpack/v3/parse.hpp, then I got error.
I guess that this is a way to check file level coverage.

Could you try this?

[ygj6]

Ok, I will look at it soon.

[ygj6]

I can open the file include/msgpack/v3/parse.hpp.
Have you signed in to coveralls with your github account?

[redboltz]

I didn't sign in. I tried sing in, then I got the result.
It is a little confusing that I can see the directory tree without sign in but I can't see the code without sign in.

I think that it is acceptable because someone who want to know the detail of coverage, they usually have github account.

[redboltz]

15 hours ago, codecov started to implement tokenless uploading functionality.

See

codecov/codecov-action#29 (comment)
https://community.codecov.io/t/whitelist-github-action-servers-to-upload-without-a-token/491/15

@ygj6 , I respect your work for coveralls, but I'm more familiar with codecov. I'd like to wait a little more to decide which one should be used.

[ygj6]

It's a good news. In fact, I prefer the user interface of codecov.
Do you think these two parts are useful? If yes, I will resubmit them after fixing the codecov

• Install dependencies in the folders outside the workspace
• Extract function (installing gtest) into a script (gtest.sh).