[opam-devel] the available field in 1.1.1
Anil Madhavapeddy
anil at recoil.org
Sun Aug 31 15:03:26 BST 2014
On 31 Aug 2014, at 13:35, Thomas Gazagnaire <thomas at gazagnaire.org> wrote:
>>> +available: [ !preinstalled & ocaml-version = "4.02.0" ]
>>>
>>> This works fine OPAM 1.2, but OPAM 1.1.1 complains with a parse error. Is there
>>> anything that'll work for both?
>>
>> The parser in 1.1.1 was a bit dumb, you need to add parenthesis:
>>
>> available: [ !preinstalled & (ocaml-version = "4.02.0")
>> ]
>
> Actually, 1.1.1 parser is very broken ... You should use:
> [ (preinstalled = false) & (ocaml-version = "4.02.0") ]
Thanks, this is now pushed and building in the pull request (along with a help message to point people at camlp4 binaries).
>
>>> errors are:
>>> [WARNING] Errors while parsing camlp4.4.02.0 OPAM file, skipping.
>>> [WARNING] Errors while parsing camlp4.4.02.0+system OPAM file, skipping.
>>> [WARNING] Errors while parsing camlp4.4.02.0 OPAM file, skipping.
>>> [WARNING] Errors while parsing camlp4.4.02.0+system OPAM file, skipping.
>>>
>>> (Also, an env var to turn these parse warnings into failures would be a useful Travis knob to have in 1.2 perhaps)
>>
>> You can use --strict or set OPAMSTRICT to a non null value.
>
> And it seems that `opam update --strict` does not really care about the --strict option.
>
> But at least, parser error messages in 1.2 are great!
Splendid :) Is OPAMSTRICT working in OPAM 1.2? This will be helpful since
there are known warnings in 1.1 that should disappear in 1.2.
-anil
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