allDeps filters the lisp deps according to the given implementation,
processing any implementation conditional attribute sets. These are not
understood by allNative, so we need to pass it the already filtered
input or evaluation would fail.
Change-Id: I9eb2d0c3b2bf70d759d03490cf31fc585283ce7f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5001
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Moves to the derivation-based git fetchers everywhere in third-party.
This might help with forward-compatibility with newer Nix versions,
though that's not our primary concern right now.
Change-Id: I565bb72585b8639893e9ea3a9e233338aede63a9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3903
Tested-by: BuildkiteCI
Reviewed-by: zseri <zseri.devel@ytrizja.de>
This changes the logic for build pipeline generation to inspect
an (optional) parentTargetMap attribute which contains the derivation
map of a target commit.
Targets that existed in a parent commit with the same drv hash will be
skipped, as they are not considered to have changed.
This does not yet wire up any logic for retrieving the target map from
storage, meaning that at this commit all targets are always built.
The intention is that we will have logic to fetch the target
map (initially from Buildkite artefact storage), which we then pass to
the depot via externalArgs when actually generating the pipeline.
Change-Id: I3373c60aaf4b56b94c6ab64e2e5eef68dea9287c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4946
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Always create a structure that maps all targets to derivations, and
persist it as a JSON file.
This relates to some of the ideas expressed in:
https://docs.google.com/document/d/16A0a5oUxH1VoiSM8hyFyLW0WiUYpNo2e2D6FTW4BlH8/edit
The file is always uploaded to Buildkite as an artifact. This allows
for retrieving it based on the commit ID in a Buildkite GraphQL query.
By default, Buildkite stores artefacts for 6 months. Storage location
can be overridden (with custom retention) through some environment
variables, but for now at TVL the Buildkite-managed storage is fine.
See also: https://buildkite.com/docs/pipelines/artifacts
In the subsequent filtering implementation, when diffing commits
across a time-range that exceeds artefact retention time, we should
simply default to building everything.
Change-Id: I6d808461cd1c1fdd6983ba8c8ef075736d42caa7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3662
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Extracts the logic for generating our Buildkite pipeline (which has
been copy&pasted and slightly modified in some places outside of
depot) into a generic //nix/buildkite library.
This should cause no change in functionality.
Change-Id: Iad3201713945de41279b39e4f1b847f697c179f7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4726
Autosubmit: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
while trying to yantsify `mkSecrets` in https://cl.tvl.fyi/c/depot/+/4688,
I(zseri) needed to debug a failing evaluation which boiled down
to a result.ok containing something which wasn't boolean,
but the error message didn't indicate where that value came from.
I debugged yants and found that the only place which didn't
simply combine boolean values or use functions which always
return booleans, I managed to isolate the error to the
`pred v` expression. To avoid the necessity to debug yants
to find this, I improve the error message for this case
to mention that
- a restriction predicate is invalid
- what's the name of the failing restriction
- the unexpected predicate return value
Change-Id: I6c570a33ccc5afc445f208e2e8855c49fb37abaf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4698
Tested-by: BuildkiteCI
Reviewed-by: zseri <zseri.devel@ytrizja.de>
Reviewed-by: tazjin <mail@tazj.in>
Autosubmit: zseri <zseri.devel@ytrizja.de>
These targets would be the same derivation, but named differently which
is noisy and causes a few, mostly subtle issues:
* Buildkite struggles with large pipelines a bit, we can save quite a
few steps by removing these.
* Having two jobs for the same derivation sometimes causes the annoying
situation that an agent would do nothing except waiting for a lock.
* Non-nix CI we add in the future may not be able to recognize that
these targets are the same and do extra work unnecessarily.
Change-Id: I1103e719ade1d3859d222b713969ac34a8765cba
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4515
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
When preparing cl/4381 I noticed that we actually handle this case
properly. depot.nix.utils.storePathName depot.path now works as
expected.
Change-Id: Ice9329c67b2e2210852012f5abe82fbbb13193de
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4382
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Autosubmit: sterni <sternenseemann@systemli.org>
This seemed to be missing a word previously.
Change-Id: Ifa860051d6b692a626dbaddbaee44b761f2274ff
Reviewed-on: https://cl.tvl.fyi/c/depot/+/4386
Autosubmit: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
This behaviour was previously confusing, since readTree's data
structure treats children from Nix files and directories as identical
but only one of them would be affected by .skip-subtree
The "subtree" to be skipped here refers to all children of the
structure.
Change-Id: Idf596c9823f09cc2acf49523916bde4b801b8519
Having `prettyRes` in the execline script causes it to fail because of
the argv limit if your test suite is long enough. For the succeeding one
we can work around this by hashing it (since we only care that something
changes if the test suite changes), in the case of the failing one where
we want to print the results, we use runExecline's stdin mechanism.
Change-Id: I2489f76acfbe809351f51caefe2a477328a70ee3
This function is also generally useful for readTree consumers that
have the concept of subtargets.
Change-Id: Ic7fc03380dec6953fb288763a28e50ab3624d233
This is often used when bootstrapping a repository with readTree,
before lib is available. Having this definition in readTree is more
convenient than copy&pasting it around to callsites.
Change-Id: I6d5d27ed142bea704843fe289ad2674be8c4d360
This is generally useful for readTree users and should be part of
readTree itself.
This is a move towards exposing several readTree-related features from
the library itself, in the future also including logic like 'gather'.
Note that this has a small functional change: In error messages of the
function, the notation for accessing Nix attributes is now used rather
than the Perforce-style `//` notation common in TVL.
For example, an error at `//web/tvl/logo` will produce `web.tvl.logo`
in the error message (which corresponds to the readTree attribute
itself).
This makes more sense for non-TVL consumers of readTree, as the
Perforce-style notation is custom to us specifically.
Change-Id: I8e199e473843c40db40b404c20d2c71f48a0f658
Since the filters return 'args', this makes nesting of filters more
readable.
Change-Id: I775252460e3e077cc6db2fab6f3948414a95ecbf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3873
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Passed strings will be treated as a relative path below the given root,
which is quite convenient when using depot.path by eliminating a lot of
repetition.
Change-Id: I3da6058094484f4a6ffbb84f89ad4472b502a00c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3704
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
This ensures in a simple example that __readTree and __readTreeChildren
are populated correctly.
Change-Id: I69a46b2ddde0d1f9bf0dff1c4780f033ac8fc27a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3655
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
In order to make readTree import symlinked directories I've been looking
into how to detect if a symlink points to a directory (since this would
allow us to use symlinks for //nix/sparseTree). I've found a hack for
this:
symlinkPointsToDir = path: isSymlink path &&
builtins.pathExists (toString path + "/.")
Unfortunately it doesn't seem to be possible to distinguish whether the
symlink target does not exist or is a regular file.
Since it's possible, I thought might as well add this to
`pathType`. To make returning the extra information workable, I've
elected to use the attribute set layout used by `//nix/tag`. This
doesn't require us to depend anything (as opposed to yants), but gives
us pattern matching (via `nix.tag.match`) and also quite idiomatic
checking of pathTypes:
pathType ./foo ? file
(pathType ./foo).symlink or null == "symlink-directory"
Nonexistent paths are encoded like this:
pathType ./foo ? missing
Of course we can't use this in readTree (since it must be zero
dependency), but we can easily inline this hack at some point.
Change-Id: I15b64a1ea69953c95dc3239ef5860623652b3089
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3535
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Reviewed-by: tazjin <mail@tazj.in>
This was a regression introduced in cl/3554.
Change-Id: I0721693a6eb1b28976b28499875812b1c3d1c910
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3654
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
This extends the calling convention for nint in a non-breaking way: If
the called script returns an attribute set instead of a string the
following is done:
* If the attributes `stdout` and/or `stderr` exist, their content (which
must be a string currently) is written to the respective output.
* If the attribute `exit` exists, nint will exit with the given exit
code. Must be a number that can be converted to an `i32`. If it's
missing, nint will exit without indicating an error.
Change-Id: I209cf178fee3d970fdea3b26e4049e944af47457
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3547
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
* goodAss wasn't used before. Simplify it to just return a boolean, so
we can use it for partitionTests later.
* goodIt also returns unnecessary extra meta information which is not
used. Cleaning that up makes the condition extremely small, so we can
inline it into (what was) goodIts.
* goodIts is just called in one place, so we can inline it into res.
Change-Id: I70cf4fa3f61ce1467a2ee5319f841cdd42db6a66
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3548
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
This change adds a new attribute to readTree nodes, `__readTreeChildren`
which is a list of attribute names added to this node by readTree.
This is then used by `gather` for `ci.targets` to avoid evaluating
attributes unnecessarily. Especially since Nix is not as lazy as we'd
like when determining types (i. e. child ? __readTree needs to force
`child` even when it's not an attribute set), evaluating attributes
unnecessarily is sometimes problematic.
Change-Id: I0a98691d41f987e23ee7e9ba21fbe465da5fe402
If the result of the assertions changes for a successful test
suite (this happens if tests are reworded, added or removed), this
makes sure the no-op derivation is rebuilt.
This makes sure that test suites show up in buildkite on ocassions other
than channel bumps, since they are only added to the job list if their
`outPath` is missing nowadays (see cl/3427).
Change-Id: Ia1050cca5eeed8b7da84c40f6154b40760a3047f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3536
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Both are just trivial wrappers around assertIsTag to make these lookups
more ergonomic. This also allows us to demote assertIsTag to an
implemtation detail.
Change-Id: Ib6ba2a858f4839354a57b660042b418976c4b1d9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3541
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
I *thought* I was being clever with the (cdr (member …)) call, but
somehow completely forgot that *posix-argv* and
*command-line-argument-list* are equivalent to argv, so they also
contain the program name as the first element. Dropping that made
argument parsing completely break down, so let's revert back to the
older solution which works quite well.
Change-Id: If7d3321cda0ca512bc8c23b6541ce390b81a3e24
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3538
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Since //web/bubblegum depends on nint, we need to move it to a non user
directory to conform with the policy established via cl/3434.
Note that this likely doesn't mean greater stability (which isn't
really implied in depot anyways), since I still would like to use a more
elaborate calling convention to allow for additional useful features.
Change-Id: I616f905d8df13e3363674aab69a797b0d39fdd79
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3506
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Given a path (which points to a directory and a list of paths which
are below that path, build a “sparse” version of that directory, so
that it only contains the listed paths (and their children):
$ nix-build -E 'with import ./. {}; nix.sparseTree ./. [
./default.nix
./nix/readTree
./nix/buildLisp
./third_party/nixpkgs
./third_party/overlays
]'
/nix/store/0ynj0gc613fs6mfp9snqcvdj5gfxbdzg-sparse-depot
$ lr -t 'type == d' result/
result/
result/nix
result/nix/buildLisp
result/nix/buildLisp/example
result/nix/readTree
result/nix/readTree/tests
[…]
result/third_party
result/third_party/nixpkgs
result/third_party/overlays
result/third_party/overlays/haskell
result/third_party/overlays/haskell/patches
result/third_party/overlays/patches
This is useful if a derivation depends on depot.path (e. g. if it wants
to import depot at runtime). Usually this means that on every depot
commit (or even worse, every change of .git on a local machine), this
derivation has to be rebuild. By using sparseTree you can instead depend
on a stripped down version of depot which only contains the bits you
actually depend on, avoiding unrelated rebuilds.
Change-Id: I127b108c8b177c657fb46786d0a6256516fd2c52
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3503
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
This gives a slightly prettier error message and won't leak the error
message when builtins.tryEval is used. Currently an error message from
the tests is always part of the pipeline evaluation log.
Change-Id: I9b488a440368091ed42d707ba4124f592a64bd86
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3502
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
This makes it possible to override Nix builtins within a readTree
structure. Why would you want to do that, you might ask? Well ...
Change-Id: Icc9cb32e5db4a2eba370cf81769c642d237d4937
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3499
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Instead of having a mix of depot-passed args (for the filter) and args
to the readTree function itself, make everything a single attribute
set of arguments passed to the function.
This also makes it a bit easier to extend this in the future.
Change-Id: I633c1fc96026d137b451bb604ef92be32571a0f5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3498
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Rather than copying the depot path into the store on each commit,
assume bufCheck is run in the depot checkout (which it is, in
Buildkite land).
Change-Id: I4a4af2e5b45acad2d18218e503880ee63b20f078
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3462
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Adds another argument to readTree itself which can be passed when
importing readTree (e.g. in our default.nix) to filter the arguments
passed to a target based on that target's location in the tree.
This is intentionally not yet mentioned in the docs, and also
intentionally implemented in such a way that the API surface of
readTree doesn't change. The reason for this is that I want to figure
out whether these filter functions are actually useful, e.g. within
depot by filtering user-folder passing, and then refactor the readTree
API to find a public way of exposing this as part of the readTree
function itself (and not its import).
Relates to b/143.
Change-Id: I2cdf09f67916527d2337f4bfb578749aeac51a6a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3433
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Reviewed-by: sterni <sternenseemann@systemli.org>
Make "Example" the second section again since it got a bit buried under
a lot of detailed documentation you won't necessarily need right away.
Change-Id: I481354d1761c590e5872dfce8c3cf9934e278673
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3421
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
CCL and SBCL create executables by dumping their image. As a
consequence, some part of the respective compiler is embedded in the
resulting executable which is executed and loads the image. For CCL and
SBCL this piece of software seems to unconditionally parse arguments
which can't be prevented since it happens before any lisp is loaded.
Luckily in both cases the parsing stops at `--`, so we can just pass
this via the wrapper — we just need to work around the problem that this
will of course be left in argv and confuse any later code. This can be
rectified by deleting everything prior to the first `--` in the global
argument list on startup in both cases.
In cases we do want to pass arguments to the image loader, we can use
the special NIX_BUILDLISP_LISP_ARGS environment variable which is
understood by the wrapper.
Note: This fix doesn't interfere with ECL since it is not using the
wrapper script at the moment.
Fixes b/136.
Change-Id: I3f95aa61e945e51428021ca18232ff15c923f870
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3357
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: grfn <grfn@gws.fyi>
Doing this in a separate CL to avoid having to track the intermediate
changes no one will ever see in documentation as well which would be
unnecessary effort.
* Multi-implementation support introduced in cl/3292 and refined in
cl/3368 in terms of the user interface.
* Implementation specific srcs and deps introduced in cl/3321
* Implementation passthru attrs and rename from .sbcl -> .repl was done
in cl/3359
* ECL added in cl/3297, CCL in cl/3350
Change-Id: Ia13f2aea4e7e091c00991fcbfc601de364413979
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3380
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Instead of using a string to refer to an internal set defined in
buildLisp, we just expose the relevant sets (as nix.buildLisp.sbcl,
nix.buildLisp.ecl, …) and receive them as the `implementation`
argument directly. This has several advantages:
* It becomes easier to extend buildLisp, even for downstream users:
Since you can just pass your own set, there's nothing stopping you
from adding support for another implementation in a downstream
derivation without having to edit the buildLisp file in any way which
is great if you're using e. g. builtins.fetchGit to import it.
* Users can mess with the implementation set by changing out some parts
of it for customization purposes. Note that currently the sets use a
lot of self-references which aren't even bound by a fix-point, so to
make this work smoothly, we'd need to add some overriding mechanism.
* The buildLisp code becomes quite a bit clearer. Since we're now always
dealing with the implementation set, the confusing distinction between
`impl`, `impl.name` and `implementation` no longer exists. `impl` is
now exclusively an abbreviation of `implementation` (we could make
this more consistent in the future even).
Change-Id: I36d68069dd1315610b2f7159941507b465469b7c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3368
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
This adds support for Clozure's CL implementation to buildLisp. This is
quite trivial in comparison to ECL since SBCL and CCL have very similar
in how they work (so much so that CCL also suffers from b/136).
Also the similarities in the code actually added here are striking, so
I'll try to make an effort to reduce the code duplication in the
future.
To fix builds with CCL the following changes were made:
* //3p/lisp/nibbles: The double inclusion of the types.lisp file was
fixed. CCL doesn't like double definitions and refuses to compile
otherwise.
* //3p/lisp/physical-quantities: Update to a new bug fix release which
contains a compilation fix for CCL.
* //3p/lisp/routes: apply a patch fixing the build which was previously
failing due to a double definition.
* //3p/lisp/usocket: only depend on sb-bsd-sockets for SBCL and ECL, the
latter of which seems to have a SBCL compatible implementation of the
package.
* Conditionally include a few CCL-specific source files and add
`badImplementation` entries for the remaining failures which are
//fun/gemma (to be expected) and //web/panettone which fails with an
incredibly vague message.
Change-Id: I666efdc39a0f16ee1bb6e23225784c709b04e740
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3350
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Adds ECL as a second supported implementation, specifically a statically
linked ECL. This is interesting because we can create statically linked
binaries, but has a few drawbacks which doesn't make it generally
useful:
* Loading things is very slow: The statically linked ECL only has byte
compilation available, so when we do load things or use the REPL it is
significantly worse than with e. g. SBCL.
* We can't load shared objects via the FFI since ECL's dffi is not
available when linked statically. This means that as it stands, we
can't build a statically linked //web/panettone for example.
Since ECL is quite slow anyways, I think these drawbacks are worth it
since the biggest reason for using ECL would be to get a statically
linked binary. If we change our minds, it shouldn't be too hard to
provide ecl-static and ecl-dynamic as separate implementations.
ECL is LGPL and some libraries it uses as part of its runtime are as
well. I've outlined in the ecl-static overlay why this should be of no
concern in the context of depot even though we are statically linking.
Currently everything is building except projects that are using cffi to
load shared libaries which have gotten an appropriate
`badImplementations` entry. To get the rest building the following
changes were made:
* Anywhere a dependency on UIOP is expressed as `bundled "uiop"` we now
use `bundled "asdf"` for all implementations except SBCL. From my
testing, SBCL seems to be the only implementation to support using
`(require 'uiop)` to only load the UIOP package. Where both a
dependency on ASDF and UIOP exists, we just delete the UIOP one.
`(require 'asdf)` always causes UIOP to be available.
* Where appropriate only conditionally compile SBCL-specific code and
if any build the corresponding files for ECL.
* //lisp/klatre: Use the standard condition parse-error for all
implementations except SBCL in try-parse-integer.
* //3p/lisp/ironclad: disable SBCL assembly optimization hack for all
other platforms as it may interfere with compilation.
* //3p/lisp/trivial-mimes: prevent call to asdf function by substituting
it out of the source since it always errors out in ECL and we hardcode
the correct path elsewhere anyways.
As it stands ECL still suffers from a very weird problem which happens
when compiling postmodern and moptilities:
https://gitlab.com/embeddable-common-lisp/ecl/-/issues/651
Change-Id: I0285924f92ac154126b4c42145073c3fb33702ed
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3297
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: eta <tvl@eta.st>
For every implementation we support an extra passthru attribute with the
name of the implementation is created which points to a version of the
derivation built with that implementation. E. g. if we support CCL, ECL
and SBCL, third_party.lisp.alexandria would have:
* third_party.lisp.alexandria.sbcl
* third_party.lisp.alexandria.ecl
* third_party.lisp.alexandria.ccl
To make this possible, the REPL derivation which was called `sbcl`
originally has been renamed to `repl`.
Since some things won't build with all implementations, we introduce a
brokenOn argument which influences the meta.targets list that is
created, but won't prevent the passthru attrs from being created to
ease debugging failures.
Change-Id: Icd6af345143593fac30ded10deabf31172e5d48a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3359
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Both the deps and srcs arguments may now have special “filter sets” in
the lists they receive as arguments. When building, buildLisp checks if
such sets either have a attribute named like the current implementation
or a "default" attribute. If yes, the set is replaced by the respective
attribute's value. If no, the set is removed from the list without
replacement.
This can be used to add elements for (a) specific implementation(s):
{ sbcl = buildLisp.bundled "sb-posix"; }
{ sbcl = ./sbcl/optional-sbcl.lisp; }
or to switch between files for different implementations:
# If a implementation case is missing and no default set present,
# no file will be added. Compilation will likely fail as a result.
{
ecl = ./tf-ecl.lisp;
ccl = ./tf-ccl.lisp;
sbcl = ./tf-sbcl.lisp;
}
or to account for special behavior for a certain implementation:
{
ccl = ./ccl-quirk-impl.lisp
default = ./ansi-impl.lisp;
}
Change-Id: I082c3701d1f5063b92100bf336a83425471c269d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/3321
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
