config report: fix not found and compilers variables display

[rjbou]

Instead of compiler_packages or invariant (which is not necessarily a compiler), it looks for installed packages with compiler flag and display their variables. it displays variables of installed compilers (packages with compiler flag) and their installed dependencies.

cc/ @dra27

[dra27]

It appears to be doing what I want, but not according to your description...

dra@thor:~/opam$ ./opam config report
# opam config report
# opam-version         2.1.0~beta4 (fc8680c46a88613ae4bcbb3af8255baaf07f24d6)
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=ubuntu os-version=20.10
# solver               builtin-mccs+glpk
# install-criteria     -removed,-count[avoid-version,changed],-count[version-lag,request],-count[version-lag,changed],-count[missing-depexts,changed],-changed
# upgrade-criteria     -removed,-count[avoid-version,changed],-count[version-lag,solution],-count[missing-depexts,changed],-new
# jobs                 7
# repositories         1 (http), 4 (version-controlled) (default repo at d8869936)
# pinned               0
# current-switch       test-pinning-4.12
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/dra/.opam/test-pinning-4.12/lib/ocaml/stublibs:/home/dra/.opam/test-pinning-4.12/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.12.0
dra@thor:~/opam$ ./opam show ocaml --field=flags

The ocaml doesn't have the compiler flag set, but its variables are being displayed?

[dra27]

I'm wondering, though, if it would be better to display both the variables of any packages in the switch invariant and any flagged compiler

[rjbou]

because I forgot an and their installed dependencies

[dra27]

So it does! In which case, it all LGTM 🙂

[rjbou]

informations updated!