Decimal 0.5.1+ changed to banker's rounding (round to nearest even
number), and math-functions 0.3.3.0 (used by roi) fixed various
precision-related issues. Now we require the latest versions of these.
This was causing some functional test failures when building with old
GHCs/snapshots.
easytest is not actively maintained and requires an old version of
hedgehog which does not support base-compat 0.11 & ghc 8.8.
This is still using the old easytest helpers, and not displaying test
names properly.
in JournalReader.hs. If you still need this, feel free to work on
those errors. But hopefully not, because dropping base 4.8 should
permit some code cleanups.
by default. hledger-lib's doctests and easytests test suites (each ?)
require an additional slow rebuild of hledger-lib and are not worth
the time, energy and carbon. hledger's test suite runs those same
easytest tests (but not the doctests).
fail is moving out of Monad and into it's own MonadFail class.
This will be enforced in GHC 8.8 (I think).
base-compat/base-compat-batteries 0.11.0 have adapted to this,
and are approaching stackage nightly
(https://github.com/commercialhaskell/stackage/issues/4802).
hledger is now ready to build with base-compat-batteries 0.11.0, once
all of our deps do (eg aeson). We are still compatible with the older
0.10.x and GHC 7.10.3 as well.
For now we are using both fails:
- new fail (from Control.Monad.Fail), used in our parsers, imported
via base-compat-batteries Control.Monad.Fail.Compat to work with
older GHC versions.
- old fail (from GHC.Base, exported by Prelude, Control.Monad,
Control.Monad.State.Strict, Prelude.Compat, ...), used in easytest's
Test, since I couldn't find their existing fail implementation to update.
To reduce (my) confusion, these are imported carefully, consistently,
and qualified everywhere as Fail.fail and Prelude.fail, with clashing
re-exports suppressed, like so:
import Prelude hiding (fail)
import qualified Prelude (fail)
import Control.Monad.State.Strict hiding (fail)
import "base-compat-batteries" Prelude.Compat hiding (fail)
import qualified "base-compat-batteries" Control.Monad.Fail.Compat as Fail
