When `max-jobs = 0`, our async semaphores have null capacity and
therefore no slot token can be acquired.
In addition, a derivation with `preferLocalBuild = true` with `max-jobs
= 0` which is not a built-in derivation is not considered suitable for
being possible to build.
Our documentation in `max-jobs` writes:
> `0` is useful when using remote builders to prevent any local builds
(except for preferLocalBuild derivation attribute which executes locally
regardless).
A valid interpretation is that `preferLocalBuild` derivations (all of
them) will always execute even if `max-jobs = 0`.
This CL achieves this promise by enabling `preferLocalBuild = true`
derivations to draw in priority capacity from a `preferLocalBuild`-only
pool and then fall back to the build pool (`maxBuildJobs`).
If there's non-zero max-jobs, we make the `preferLocalBuild`-only pool
empty.
If there's zero max-jobs, we make the `preferLocalBuild`-only pool
non-empty (capacity: 1).
Remark 1: if `max-jobs = 0`, no non-`preferLocalBuild = true`
derivations can be built without a remote builder and `preferLocalBuild
= true` derivations can be built one at a time if `extra-local-jobs` is
not overridden.
Remark 2: if `max-jobs != 0`, no `preferLocalBuild = true` derivations
can bypass capacity limits, i.e. `max-jobs` unless `extra-local-jobs` is
overridden.
Fixes#855.
Change-Id: I00a0acac7375a881aec6281ebb13a4530b26e460
Signed-off-by: Raito Bezarius <raito@lix.systems>
When ref/rev are very similar looking, e.g. a revision SHA1, the logic
to reconstruct whether we had a ref or rev initially cannot work.
This regression was introduced by
I2c72d5a32e406a7ca308e271730bd0af01c5d18b which passed the information
as an attribute field called `refOrRev`, instead, we pass `ref` or `rev`
but not `refOrRev`.
We apply the same post-processing logic to distinguish rev/ref in
path-style flake references: `github:owner/repo/$refOrRev`.
Fixes#520#841.
Change-Id: I2b1985cd5f351f43fea84232c1972715e2408fb1
Signed-off-by: Raito Bezarius <raito@lix.systems>
In structured attrs derivations, __json is used to serialize the `env`
attribute into a JSON object.
If the derivation enables structured attributes AND specify its own
`__json`, one of the field will take precedence (the reader can have fun
by guessing which one).
To reduce underspecification, we disallow `__json` in structured
attributes derivations.
Fixes#380.
Change-Id: I51c3b2af1ff9449471ba81d4c72df6a7a263eef7
Signed-off-by: Raito Bezarius <raito@lix.systems>
`nix.full_path()` is the *built* path, not the *installed* path. in the
sandbox this point to a location that contains *only* `nix`, not any of
the old-cli symlinks. any test that needs them in path would thus fail.
Change-Id: Ia651db8d1151a84f8d1b52e8993f6db61b0fe104
To stop spurious warnings, we will stop this bizarre behavior of setting
empty values to impure environment variables.
On the warning side, we verify that the presence of the environment
variable.
The corresponding test is updated to "there is a warning" to "there is
no warning".
Change-Id: I12f5c6445ef00a83d269488d7aed0b0f61aeec12
All impure environment variables are initialized as part of `initEnv()`
to an empty value if they are unset.
Whenever `NIX_SSL_CERT_FILE` is set, this cause a spurious warning.
Let's document it here as a test before we fix it.
Change-Id: Iccba8ccb487d9cc25490e940ff09c1c5a13ae097
Signed-off-by: Raito Bezarius <raito@lix.systems>
CA tests have grown quite complicated and are hard to debug and
manoeuver for new needs.
They are a prime target for F2 migration and they were extremely
pleasant to write.
Most functionality is preserved or improved with additional behaviors
asserted on warnings and the full set of reports.
Change-Id: I70cd52abbe5ff13f56744b966ab00962ad3a49d6
Signed-off-by: Raito Bezarius <raito@lix.systems>
Instead of taking in a final argument `Value &` out parameter which it
writes to, it now returns its result
Change-Id: Iab6bc3a3ac6a4b17c6d31115a766a6ea6a6a6964
I could instead add the right braces or manually ensure the
XMLOpenElement destructor is run at the right time. Or I could just
write what I actually want to happen.
Fixes#1137.
Change-Id: Ie1f157de1632571fb0c21e26d8e3cae56a6a6964
eldritch horrors