test1022: Add support for rc releases

[samueloph]

Fix the following test failure:
curl-config: illegal value

Note: The rc relase tarball is currently named with the -rc suffix but the --version parameter reports it as -rc1.
Usually, the lack of a number implies that -rc is equivalent to -rc0.
This does not cause any issues today, but I recommend matching these numbers for the next releases (and to assume rc == rc0).

[testclutch]

Analysis of PR #16626 at 87d563a1:

Test 564 failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test 713 failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test 715 failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Generated by Testclutch

[samueloph]

Analysis of PR #16626 at 87d563a1:

Test 564 failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test 713 failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Test 715 failed, which has NOT been flaky recently, so there could be a real issue in this PR.

Generated by Testclutch

Logs:

FAIL 564: 'FTP RETR a file over a SOCKS proxy using the multi interface' FTP, PASV, RETR, multi, SOCKS4
FAIL 713: 'FTP fetch with --proxy set to socks5:// and with --connect-to' FTP, PASV, RETR, SOCKS5, CURLOPT_CONNECT_TO
FAIL 715: 'FTP fetch with --preproxy, --proxy and --connect-to' FTP, PASV, RETR, HTTP, HTTP CONNECT, proxytunnel, SOCKS5, CURLOPT_CONNECT_TO

TESTFAIL: These test cases failed: 564 713 715

These tests are not related to this PR.

[thesamesam]

Hm, is there no distcheck job in CI? It should catch this.

EDIT: Ah, there's a job called distcheck (https://github.com/curl/curl/blob/2fc8f7a3f74f2f07171350df4945f01de58f19ee/.github/workflows/distcheck.yml), but it doesn't actually use make distcheck.

[dfandrich]

There is a distcheck job in CI but it operates on git sources, not tarballs.

[thesamesam]

OK, so not the same thing ;)

i.e. autotools distcheck exists for this exact case, to ensure that both files are not missing from a tarball, and that the versions within the tarball work fine for building/tests/installation.

EDIT: #12088 (comment)

[bagder]

We do that exact discheck in CI. That's not the problem. The problem was that we never did a -rc build before, and the distcheck in CI does not either.

[bagder]

Thanks!

[thesamesam]

It's not the same check if it doesn't use the same version as whatever the tag is (it uses 99.98.97). But I see there isn't a tag for the RC either.

[bagder]

What is your point?

[thesamesam]

If a tag was made for the RC and it used the tag value if existed, it'd catch this? Right now, it uses a fixed version, so if there's something subtle like this test, it's not going to notice.

[bagder]

If we updated the test so that it would test the scenario that it didn't work for, then it would have caught this problem. Yes, that seems correct. We welcome all help and assistance we can get in improving our test suite.