`anyhow` is only used to capture a handful of errors. It also turns out that
usage of `lexopt` was wrong, since it features `parse_with`, which neatly
integrates with `FromStr`. The types, luckily, implement this trait already –
making for cleaner parsing.
For now, the execution errors are all "transparent", which shouldn't be
much of a regression, if at all.
It turns out that failing to read configuration resulted in no output,
because the logger would only be set after configuration had been read.
Fix this, by setting the logger early, with a log level that is then
corrected as soon as configuration is available.
While at it, also clean this up to allow logging errors about failure to
set up the logger.
The signals crate does not build on non-Unix-like platforms, such as
Windows. It uses constants for signals that are not exported from
`libc` on Windows, and transitive dependencies such as `sem_safe` fail
to compile.
Resolve this, by guarding most of the crate, certainly all real
features, by `cfg(unix)`.
To require less uses of the `cfg` macro, move all affected parts into a
new module, and re-export it.
The crate now builds on Windows (although it does not do anything
interesting on that platform) and its Unix interface remains unchanged.
Changes are integrated into `radicle-node`, but only affect Windows.
Lorenz Leutgeb
Erik Kundt
Fintan Halpenny