Fixes and updates for use in our Languages API

[pbrisbin]

• 4e7b147 Updates for newer GHC and --pedantic

  • Remove unused import
  • Use DerivingStrategies throughout

• 414f9ab Fix style in touched files

• 3e69807 Add HttpApiData orphans

  To use BCP47 as a Persist key, we need these instances.

• 21d5f9e Export parser

  It can be useful to parse BCP47 tags in the context of a larger parser, such
  as parsing the HTTP Accept-Language Header, which is formatted as

  {language}[;q={weight}][,...]
  

  Doing this on top of fromText is possible, but a bit annoying.

  NOTE: I attempted to move this to a Data.BCP47.Parser, but the current
  top-level module contains too many lower-level data definitions for that to be
  possible without an import-cycle. To address that, we could move most of
  Data.BCP47 to .Internal modules themselves, and leave Data.BCP47 as a
  re-export, higher-level interface for the most common usage. This would be a
  Good Thing, IMO, but has been deferred for now.

[eborden]

👍 LGTM

[pbrisbin]

Really not sure what's up on CI:

Progress 1/2: bcp47�������������������                   �������������������bcp47        > 
Progress 1/2: bcp47�������������������                   �������������������bcp47        > library/Data/BCP47/Internal/Parser.hs:9:1: error:
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     Could not load module ‘Text.Megaparsec’
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     It is a member of the hidden package ‘megaparsec-7.0.5’.
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     You can run ‘:set -package megaparsec’ to expose it.
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     (Note: this unloads all the modules in the current scope.)
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     Use -v to see a list of the files searched for.
Progress 1/2: bcp47�������������������                   �������������������bcp47        >   |
Progress 1/2: bcp47�������������������                   �������������������bcp47        > 9 | import Text.Megaparsec (Parsec, eof, lookAhead)
Progress 1/2: bcp47�������������������                   �������������������bcp47        >   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Progress 1/2: bcp47�������������������                   �������������������bcp47        > 
Progress 1/2: bcp47�������������������                   �������������������bcp47        > library/Data/BCP47/Internal/Parser.hs:10:1: error:
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     Could not load module ‘Text.Megaparsec.Char’
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     It is a member of the hidden package ‘megaparsec-7.0.5’.
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     You can run ‘:set -package megaparsec’ to expose it.
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     (Note: this unloads all the modules in the current scope.)
Progress 1/2: bcp47�������������������                   �������������������bcp47        >     Use -v to see a list of the files searched for.
Progress 1/2: bcp47�������������������                   �������������������bcp47        >    |
Progress 1/2: bcp47�������������������                   �������������������bcp47        > 10 | import Text.Megaparsec.Char (char)
Progress 1/2: bcp47�������������������                   �������������������bcp47        >    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Progress 1/2: bcp47�������������������                   �������������������bcp47        > Test suite doctest failed

I can't reproduce it locally.

[eborden]

Old cache?

[pbrisbin]

I can try busting it, but it doesn't appear to be that (everything seems to build that I'd expect to build). So I'm afraid if busting it works I might've just papered over something that'll bite someone else later.

[pbrisbin]

It seems to be this bug: commercialhaskell/stack#5159 "Doctests in multi-package project interfering with each other"

I can repro locally (only) with:

stack build -j1 bcp47:doctest bcp47-orphans --stack-yaml "stack.yaml" --no-terminal  --pedantic --test                                       

EDIT: This still doesn't reproduce reliably. Locally it almost always works, and on CI it almost always fails.

[pbrisbin]

OK, building the packages independently seems to work around the shared-environment bug. I've cleaned up history (wiping out other failed workarounds), and will merge on Green.