Where applicable, use elif in Cabal files #604
Description
elif was introduced in cabal-version: 2.2 (released March 2018). For example:
when:
- condition: os(windows)
then:
source-dirs: windows
else:
when:
- condition: "os(darwin) || os(linux)"
then:
source-dirs: unix-like
else:
source-dirs: unsupported-osbecomes:
if os(windows)
hs-source-dirs:
windows
elif os(darwin) || os(linux)
hs-source-dirs:
unix-like
else
hs-source-dirs:
unsupported-os(In contrast to the current:
if os(windows)
hs-source-dirs:
windows
else
if os(darwin) || os(linux)
hs-source-dirs:
unix-like
else
hs-source-dirs:
unsupported-os)
I have a pull request that implements this: