The aws-sdk-cpp tests are flaky.
Since pull requests to staging cause nix to be rebuilt, this means
that staging PRs end up getting false CI failures due to whatever is
flaky in the AWS SDK tests. Since none of our CI needs to (or
should be able to) contact AWS S3, let's just omit it all. Bonus:
the tests build way faster.
These statements are taken from the `lib/test/release.nix` tests,
which previously also worked on darwin.
Unblocks https://github.com/NixOS/nix/pull/8569 when backported
With removePrefix introduced in a future commit this law can then be
used to derive
removePrefix p (append p s) == subpath.normalise s
=> (wrap with append)
append p (removePrefix p (append p s)) == append p (subpath.normalise s)
=> (append is not influenced by subpath normalisation)
append p (removePrefix p (append p s)) == append p s
=> (substitute q = append p s)
append p (removePrefix p q) == q
Not included in the docs because it's not that important, just shows
that the first statement is more general than the second one (because
this derivation doesn't work the other way)
When "-n" is generated by the property tests, it causes `echo` to not
output the string since it's interpreted as an option. Apparently
there's no good way to print "-n" with `echo` [1], so switching to
`printf` instead
[1]: https://unix.stackexchange.com/questions/85846/how-can-i-print-n-with-echo
Adds initial work towards a `lib.path` library
Originally proposed in https://github.com/NixOS/nixpkgs/pull/200718, but has
since gone through some revisions
Co-Authored-By: Valentin Gagarin <valentin.gagarin@tweag.io>
Co-Authored-By: Robert Hensing <robert@roberthensing.nl>
Silvan Mosberger