[>=2.0] Requires CPAN `JSON` in practice, even with all of `JSON::XS`, `Cpanel::JSON::XS`, `JSON::PP` installed?

[hartwork]

Hi!

While playing with Gentoo bug report https://bugs.gentoo.org/922908 I found that with all of JSON::XS, Cpanel::JSON::XS, JSON::PP installed, the tests still fail with…

# make -j5 -j1 check 
Error: Missing Perl module 'JSON' required by /var/tmp/portage/dev-util/lcov-2.0-r2/work/lcov-2.0/tests//../bin/criteria
make[1]: *** [common.mak:69: checkdeps] Error 1

…which is in (some?) contradiction with statement…

lcov/README

Lines 135 to 140 in 3cd2210

	- at least one flavor of JSON module.
	In order of performance/preference:
	- JSON::XS
	- Cpanel::JSON::XS
	- JSON::PP
	- JSON

…but maybe it depends on whether one is reading that as being about (a) runtime or (b) runtime-and-test dependencies.

I guess for Gentoo, the fix is to insist on plain JSON for when tests are enabled with LCOV >=2.0.
With regard to upstream, what do you envision as the best fix or improvement?

Best, Sebastian

[hartwork]

PS: Here's the related fix that I applied to Gentoo packaging now: gentoo/gentoo@be52a5f

[henry2cox]

My bad :-(
(I never noticed - partly because we have all those modules available.)

I changed the implementation slightly, to follow the doc (and not explicitly load JSON).

[hartwork]

I changed the implementation slightly, to follow the doc (and not explicitly load JSON).

@henry2cox cool!

I checked Git master after pulling…

# git --no-pager grep "use JSON"
scripts/criteria:use JSON;
scripts/criteria.pm:use JSON;
scripts/threshold.pm:use JSON;

…and the list of open pull requests — did you push this anywhere?

[hartwork]

@henry2cox closing as "assumed fixed" by pull request #374 — thanks!