This "breaks" the deprecated schema by allowing unknown attributes
to the attributes section of the job types. The breaking change here is
that deprecated stacks will no longer ignore attributes that are unknown
but rather assume the new CI schema behavior of injecting them into the
generated CI configuration. This change is required to secure
authentication in Spack CI.
* gitlab: remove commented-out duplicate entries
* gitlab: reclassify some packages from "huge" to "large"
Our observed max memory usage for these packages is as follows:
hipblas: 7.7G
qt: 6.6G
visit: 9.7G
All of these should fit within a "large" request (currently 12G).
* gitlab: remove pango from list of huge packages
This package is not currently built by any of our CI stacks.
* gitlab: update requests for high memory packages
Refine resource requests for memory-intensive packages based on
max memory usage data.
Currently requirements allow to express "strong preferences" and "conflicts" from
configuration using a convoluted syntax:
```yaml
packages:
zlib-ng:
require:
# conflict on %clang
- one_of: ["%clang", "@:"]
# Strong preference for +shared
- any_of: ["+shared", "@:"]
```
This PR adds syntactic sugar so that the same can be written as:
```yaml
packages:
zlib-ng:
conflict:
- "%clang"
prefer:
- "+shared"
```
Preferences written in this way are "stronger" that the ones documented at:
- https://spack.readthedocs.io/en/latest/packages_yaml.html#package-preferences
* e4s ci: use latest intel/hpckit 2024 based image
* use latest container image: ecpe4s/ubuntu22.04-runner-amd64-oneapi-2024.0.0:2023.12.01
* comment out failing specs
* update to use patched container
* remove generalized package preference for intel-oneapi-mkl@2023
* change packages commented out
Like `spack change` for specs in environments, this can e.g. replace `examplespec+debug` with `examplespec~debug` in a `require:` section.
Example behavior for a config like:
```
packages:
foo:
require:
- spec: +debug
```
* `spack config change packages:foo:require:~debug` replaces `+debug` with `~debug`
* `spack config change packages:foo:require:@1.1` adds a requirement to the list
* `spack config change packages:bar:require:~debug` adds a requirement
The current `mkdir {{ paths.environment }}` will generate an error if:
* `{{ paths.environment }}` already exists, or
* `{{ paths.environment }}` is nested in non-existing dirs.
Adding `-p` to the command will make this robust to both possibilities.
Set noclobber bash option when writing manifest.
Add `--create` option to `env activate` to allow users to create and activate in one command.
---------
Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>
Co-authored-by: Tamara Dahlgren <35777542+tldahlgren@users.noreply.github.com>
Co-authored-by: psakievich <psakievich@users.noreply.github.com>
* setup-env: Fix back and forth between two instances
* setup-env.csh: Fix SPACK_ROOT when switch to a different instance
i.e. Always look for the current SPACK_ROOT
* setup-env: Update comments
This adds options to `spack list` that allow you to list only packages from specific
repositories/namespaces, e.g.:
```console
spack list -r builtin
```
only lists packages from the `builtin` repo, while:
```console
spack list -r myrepo -r myrepo2
```
would list packages from `myrepo` and `myrepo2`, but not from `builtin`. Note that you
can use the same argument multiple times.
You can use either `-r` / `--repo` or `-N` / `--namespace`. `-N` is there to match the
corresponding option on `spack find`.
- [x] add `-r` / `--repo` / `-N` / `--namespace` argument
- [x] add test
* Add rust-analyzer as variant to rust build
* Expose cargo module only when +cargo
* rust: add v1.74.0 and v1.75.0 and remove variants in favor of +dev
* [@spackbot] updating style on behalf of alecbcs
* Fix variant typo
---------
Co-authored-by: alecbcs <alecbcs@users.noreply.github.com>
This adds a few options to `spack gc`.
One to give you a little more control over dependencies:
* `-b` / `--keep-build-dependencies`: By default, `spack gc` considers build dependencies to be "no longer needed" once their dependents are installed. With this option, we'll keep build dependencies of needed installations as well.
And two more to make working with environments easier:
* `-E` / `--except-any-environment`: Garbage collect anything NOT needed by an environment. `spack gc -E` and `spack gc -bE` are now easy ways to get rid of everytihng not used by some environment.
* `-e` / `--except-environment` `ENV`: Instead of considering all environments, garbage collect everything not needed by a *specific* environment. Note that you can use this with `-E` to add directory environments to the list of considered envs, e.g.:
spack gc -E -e /path/to/direnv1 -e /path/to/direnv2 #...
- [x] rework `unused_specs()` method on DB to add options for roots and deptypes
- [x] add `all_hashes()` method on DB
- [x] rework `spack gc` command to add 3 more options
- [x] tests
The gcc-runtime package adds a separate node for gcc's dynamic runtime
libraries.
This should help with:
1. binary caches where rpaths for compiler support libs cannot be
relocated because the compiler is missing on the target system
2. creating "minimal" container images
The package is versioned like `gcc` (in principle it could be
unversioned, but Spack doesn't always guarantee not mixing compilers)
This PR adds a flag `--tag/-t` to `buildcache push`, which you can use like
```
$ spack mirror add my-oci-registry oci://example.com/hello/world
$ spack -e my_env buildcache push --base-image ubuntu:22.04 --tag my_custom_tag my-oci-registry
```
and lets users ship a full, installed environment as a minimal container image where each image layer is one Spack package, on top of a base image of choice. The image can then be used as
```
$ docker run -it --rm example.com/hello/world:my_custom_tag
```
Apart from environments, users can also pick arbitrary installed spec from their database, for instance:
```
$ spack buildcache push --base-image ubuntu:22.04 --tag some_specs my-oci-registry gcc@12 cmake
$ docker run -it --rm example.com/hello/world:some_specs
```
It has many advantages over `spack containerize`:
1. No external tools required (`docker`, `buildah`, ...)
2. Creates images from locally installed Spack packages (No need to rebuild inside `docker build`, where troubleshooting build failures is notoriously hard)
3. No need for multistage builds (Spack just tarballs existing installations of runtime deps)
4. Reduced storage size / composability: when pushing multiple environments with common specs, container image layers are shared.
5. Automatic build cache: later `spack install` of the env elsewhere speeds up since the containerized environment is a build cache
* add trim function to `Spec` and `--ignore` option to 'spack diff'
Allows user to compare two specs while ignoring the sub-DAG of a particular dependency, e.g.
spack diff --ignore=mpi --ignore=zlib trilinos/abcdef trilinos/fedcba
to focus on differences closer to the root of the software stack
This PR changes the default behavior of `spack config get` and `spack config blame`
to print a flattened version of the entire spack configuration, including any active
environment, if the commands are invoked with no section arguments.
The new behavior is used in Gitlab CI to help debug CI configuration, but it can also
be useful when asking for more information in issues, or when simply debugging Spack.
Convert the 'develop' section of an environment to a dedicated configuration section.
This means for example that instead of having to define `develop` specs in the
`spack.yaml`, the environment can `include:` another `develop.yaml` configuration
which specifies which specs should be developed in the environment.
This change is not expected to be disruptive given that existing environment `spack.yaml`
files will conform to the new schema.
(Update 11/28/2023) I have implemented the `develop`/`undevelop` commands in terms
of more-generic modification functions added to the `config` module: `change_or_add`
and `update_all`. It is assumed that the semantics added here (described in 11/18 update)
would be desirable to extend to other config update actions (e.g. adding compilers,
changing package requirements, adding mirrors).
(Update 11/18/2023) I have updated this such that `spack develop`, and
`spack undevelop` to potentially modify all writable scopes, like
https://github.com/spack/spack/pull/41147. https://github.com/spack/spack/pull/35307
will be useful for modifying included scopes, but generally speaking specifying a
`--scope` will not be required for `spack develop`: `spack develop` will add new
develop specs to whatever scope already has develop specs defined, or to the
highest-priority writable scope (which should be the env scope).
TODOs:
- [x] If you `spack undevelop` a package which is mentioned at multiple layers of
configuration, then currently this would only modify one of them. That's not
technically a new issue (has always existed for configuration modification), but
may be confusing to users when presented via an interface other than `spack config set`
- [x] Need to add (or confirm) the ability to modify individual config files by providing
a path (rather than using a scope identifier as a key to retrieve associated config).
- [x] `spack develop` adds new develop specs to the scope that defines them
(potentially skipping higher priority scopes to e.g. augment included scope files)
---------
Co-authored-by: scheibelp <scheibelp@users.noreply.github.com>
Co-authored-by: Todd Gamblin <tgamblin@llnl.gov>
* Add `signed` property to mirror config
* make unsigned a tri-state: true/false overrides mirror config, none takes mirror config
* test commands
* Document this
* add a test
- we don't have a fallback if make is not installed
- we assume file system locking works
- we don't verify that make is gnu make (bootstrapping fails on FreeBSD as a result)
- there are some weird race conditions in writing spack.yaml on concurrent spack install
- the view is updated after every package install instead of post environment install.
* developer tools stack try 2
This version is actually in use locally and has largely stabilized, at
least on x86. Some packages are still a challenge on ppc64le, but maybe
worth keeping this working as a set.
* add packages, try to get container with newer gcc
* remove reuse: true
* try to get cmake to build on medium, 25 minutes is too long
* add lsd package and add to dev tools stack
* clean up fzf dependency and sorting
* Update share/spack/gitlab/cloud_pipelines/stacks/developer_tools/spack.yaml
* cuda: add 12.3.0 (#40827)
* Switch to dashes
* yet more underscores
---------
Co-authored-by: Paul R. C. Kent <kentpr@ornl.gov>
* oneapi 2024.0.0 release
* oneapi v2 directory support and some cleanups
* sycl abi change requires 2024 compilers for packages that use sycl
---------
Co-authored-by: Robert Cohn <robert.s.cohn@intel.com>
We have two ways to concretize now:
* `spack concretize` concretizes only the root specs that are not concrete in the environment.
* `spack concretize -f` eliminates all cached concretization data and reconcretizes the *entire* environment.
This PR adds `spack deconcretize`, which eliminates cached concretization data for a spec. This allows
users greater control over what is preserved from their `spack.lock` file and what is reused when not
using `spack concretize -f`. If you want to update a spec installed in your environment, you can call
`spack deconcretize` on it, and that spec and any relevant dependents will be removed from the lock file.
`spack concretize` has two options:
* `--root`: limits deconcretized specs to *specific* roots in the environment. You can use this to
deconcretize exactly one root in a `unify: false` environment. i.e., if `foo` root is a dependent
of `bar`, both roots, `spack deconcretize bar` will *not* deconcretize `foo`.
* `--all`: deconcretize *all* specs that match the input spec. By default `spack deconcretize`
will complain about multiple matches, like `spack uninstall`.
This changes variant display to use a much more legible format, and to use screen space
much better (particularly on narrow terminals). It also adds color the variant display
to match other parts of `spack info`.
Descriptions and variant value lists that were frequently squished into a tiny column
before now have closer to the full terminal width.
This change also preserves any whitespace formatting present in `package.py`, so package
maintainers can make easer-to-read descriptions of variant values if they want. For
example, `gasnet` has had a nice description of the `conduits` variant for a while, but
it was wrapped and made illegible by `spack info`. That is now fixed and the original
newlines are kept.
Conditional variants are grouped by their when clauses by default, but if you do not
like the grouping, you can display all the variants in order with `--variants-by-name`.
I'm not sure when people will prefer this, but it makes it easier to tell that a
particular variant is/isn't there. I do think grouping by `when` is the better default.
Currently there's some hacky logic in the AppleClang compiler that makes
it also accept `gfortran` as a fortran compiler if `flang` is not found.
This is guarded by `if sys.platform` checks s.t. it only applies to
Darwin.
But on Linux the feature of detecting mixed toolchains is highly
requested too, cause it's rather annoying to run into a failed build of
`openblas` after dozens of minutes of compiling its dependencies, just
because clang doesn't have a fortran compiler.
In particular in CI where the system compilers may change during system
updates, it's typically impossible to fix compilers in a hand-written
compilers.yaml config file: the config will almost certainly be outdated
sooner or later, and maintaining one config file per target machine and
writing logic to select the correct config is rather undesirable too.
---
This PR introduces a flag `spack compiler find --mixed-toolchain` that
fills out missing `fc` and `f77` entries in `clang` / `apple-clang` by
picking the best matching `gcc`.
It is enabled by default on macOS, but not on Linux, matching current
behavior of `spack compiler find`.
The "best matching gcc" logic and compiler path updates are identical to
how compiler path dictionaries are currently flattened "horizontally"
(per compiler id). This just adds logic to do the same "vertically"
(across different compiler ids).
So, with this change on Ubuntu 22.04:
```
$ spack compiler find --mixed-toolchain
==> Added 6 new compilers to /home/harmen/.spack/linux/compilers.yaml
gcc@13.1.0 gcc@12.3.0 gcc@11.4.0 gcc@10.5.0 clang@16.0.0 clang@15.0.7
==> Compilers are defined in the following files:
/home/harmen/.spack/linux/compilers.yaml
```
you finally get:
```
compilers:
- compiler:
spec: clang@=15.0.7
paths:
cc: /usr/bin/clang
cxx: /usr/bin/clang++
f77: /usr/bin/gfortran
fc: /usr/bin/gfortran
flags: {}
operating_system: ubuntu23.04
target: x86_64
modules: []
environment: {}
extra_rpaths: []
- compiler:
spec: clang@=16.0.0
paths:
cc: /usr/bin/clang-16
cxx: /usr/bin/clang++-16
f77: /usr/bin/gfortran
fc: /usr/bin/gfortran
flags: {}
operating_system: ubuntu23.04
target: x86_64
modules: []
environment: {}
extra_rpaths: []
```
The "best gcc" is automatically default system gcc, since it has no
suffixes / prefixes.
This PR implements the concept of "default environment", which doesn't have to be
created explicitly. The aim is to lower the barrier for adopting environments.
To (create and) activate the default environment, run
```
$ spack env activate
```
This mimics the behavior of
```
$ cd
```
which brings you to your home directory.
This is not a breaking change, since `spack env activate` without arguments
currently errors. It is similar to the already existing `spack env activate --temp`
command which always creates an env in a temporary directory, the difference
is that the default environment is a managed / named environment named `default`.
The name `default` is not a reserved name, it's just that `spack env activate`
creates it for you if you don't have it already.
With this change, you can get started with environments faster:
```
$ spack env activate [--prompt]
$ spack install --add x y z
```
instead of
```
$ spack env create default
==> Created environment 'default in /Users/harmenstoppels/spack/var/spack/environments/default
==> You can activate this environment with:
==> spack env activate default
$ spack env activate [--prompt] default
$ spack install --add x y z
```
Notice that Spack supports switching (but not stacking) environments, so the
parallel with `cd` is pretty clear:
```
$ spack env activate named_env
$ spack env status
==> In environment named_env
$ spack env activate
$ spack env status
==> In environment default
```
This completes to `spack concretize`:
```
spack conc<tab>
```
but this still gets hung up on the difference between `concretize` and `concretise`:
```
spack -e . conc<tab>
```
We were checking `"$COMP_CWORD" = 1`, which tracks the word on the command line
including any flags and their args, but we should track `"$COMP_CWORD_NO_FLAGS" = 1` to
figure out if the arg we're completing is the first real command.
This PR adds support for including separate definitions from `spack.yaml`.
Supporting the inclusion of files with definitions enables user to make
curated/standardized collections of packages that can re-used by others.
* e4s ci: add exago +cuda, +rocm builds
* exago: rename 5-18-2022-snapshot to snapshot.5-18-2022
* disable exago +rocm for non-external rocm ci install
* note that hiop +rocm fails to find hip libraries when they are spack-installed
Credits to @ChristianKniep for advocating the idea of OCI image layers
being identical to spack buildcache tarballs.
With this you can configure an OCI registry as a buildcache:
```console
$ spack mirror add my_registry oci://user/image # Dockerhub
$ spack mirror add my_registry oci://ghcr.io/haampie/spack-test # GHCR
$ spack mirror set --push --oci-username ... --oci-password ... my_registry # set login credentials
```
which should result in this config:
```yaml
mirrors:
my_registry:
url: oci://ghcr.io/haampie/spack-test
push:
access_pair: [<username>, <password>]
```
It can be used like any other registry
```
spack buildcache push my_registry [specs...]
```
It will upload the Spack tarballs in parallel, as well as manifest + config
files s.t. the binaries are compatible with `docker pull` or `skopeo copy`.
In fact, a base image can be added to get a _runnable_ image:
```console
$ spack buildcache push --base-image ubuntu:23.04 my_registry python
Pushed ... as [image]:python-3.11.2-65txfcpqbmpawclvtasuog4yzmxwaoia.spack
$ docker run --rm -it [image]:python-3.11.2-65txfcpqbmpawclvtasuog4yzmxwaoia.spack
```
which should really be a game changer for sharing binaries.
Further, all content-addressable blobs that are downloaded and verified
will be cached in Spack's download cache. This should make repeated
`push` commands faster, as well as `push` followed by a separate
`update-index` command.
An end to end example of how to use this in Github Actions is here:
**https://github.com/haampie/spack-oci-buildcache-example**
TODO:
- [x] Generate environment modifications in config so PATH is set up
- [x] Enrich config with Spack's `spec` json (this is allowed in the OCI specification)
- [x] When ^ is done, add logic to create an index in say `<image>:index` by fetching all config files (using OCI distribution discovery API)
- [x] Add logic to use object storage in an OCI registry in `spack install`.
- [x] Make the user pick the base image for generated OCI images.
- [x] Update buildcache install logic to deal with absolute paths in tarballs
- [x] Merge with `spack buildcache` command
- [x] Merge #37441 (included here)
- [x] Merge #39077 (included here)
- [x] #39187 + #39285
- [x] #39341
- [x] Not a blocker: #35737 fixes correctness run env for the generated container images
NOTE:
1. `oci://` is unfortunately taken, so it's being abused in this PR to mean "oci type mirror". `skopeo` uses `docker://` which I'd like to avoid, given that classical docker v1 registries are not supported.
2. this is currently `https`-only, given that basic auth is used to login. I _could_ be convinced to allow http, but I'd prefer not to, given that for a `spack buildcache push` command multiple domains can be involved (auth server, source of base image, destination registry). Right now, no urllib http handler is added, so redirects to https and auth servers with http urls will simply result in a hard failure.
CAVEATS:
1. Signing is not implemented in this PR. `gpg --clearsign` is not the nicest solution, since (a) the spec.json is merged into the image config, which must be valid json, and (b) it would be better to sign the manifest (referencing both config/spec file and tarball) using more conventional image signing tools
2. `spack.binary_distribution.push` is not yet implemented for the OCI buildcache, only `spack buildcache push` is. This is because I'd like to always push images + deps to the registry, so that it's `docker pull`-able, whereas in `spack ci` we really wanna push an individual package without its deps to say `pr-xyz`, while its deps reside in some `develop` buildcache.
3. The `push -j ...` flag only works for OCI buildcache, not for others
Update Tcl modulefile template to simplify generated `append-path`,
`prepend-path` and `remove-path` commands and improve their readability.
If path element delimiter is colon character, do not set the `--delim`
option as it is the default delimiter value.
* ci: don't register detectable compilers
Cause they go out of sync...
* remove intel compiler, it can be detected too
* Do not run spack compiler find since compilers are registered in concretize job already
* trilinos: work around +stokhos +cuda +superlu-dist bug due to EMPTY macro
* gromacs +cp2k: build in CI
* libxsmm: x86 only
* attempt to fix dbcsr + new mpich
* use c11 standard
* gromacs: does not depend on dbcsr
* cp2k: build with cmake in CI, s.t. dbcsr is a separate package
* cp2k: cmake patches for config files and C/C++ std
* cp2k: remove unnecessary constraints due to patch
This adds a `SetupContext` class which is responsible for setting
package.py module globals, and computing the changes to environment
variables for the build, test or run context.
The class uses `effective_deptypes` which takes a list of specs (e.g. single
item of a spec to build, or a list of environment roots) and a context
(build, run, test), and outputs a flat list of specs that affect the
environment together with a flag in what way they do so. This list is
topologically ordered from root to leaf, so that one can be assured that
dependents override variables set by dependencies, not the other way
around.
This is used to replace the logic in `modifications_from_dependencies`,
which has several issues: missing calls to `setup_run_environment`, and
the order in which operations are applied.
Further, it should improve performance a bit in certain cases, since
`effective_deptypes` run in O(v + e) time, whereas `spack env activate`
currently can take up to O(v^2 + e) time due to loops over roots. Each
edge in the DAG is visited once by calling `effective_deptypes` with
`env.concrete_roots()`.
By marking and propagating flags through the DAG, this commit also fixes
a bug where Spack wouldn't call `setup_run_environment` for runtime
dependencies of link dependencies. And this PR ensures that Spack
correctly sets up the runtime environment of direct build dependencies.
Regarding test dependencies: in a build context they are are build-time
test deps, whereas in a test context they are install-time test deps.
Since there are no means to distinguish the build/install type test deps,
they're both.
Further changes:
- all `package.py` module globals are guaranteed to be set before any of the
`setup_(dependent)_(run|build)_env` functions is called
- traversal order during setup: first the group of externals, then the group
of non-externals, with specs in each group traversed topological (dependencies
are setup before dependents)
- modules: only ever call `setup_dependent_run_environment` of *direct* link/run
type deps
- the marker in `set_module_variables_for_package` is dropped, since we should
call the method once per spec. This allows us to set only a cheap subset of
globals on the module: for example it's not necessary to compute the expensive
`cmake_args` and w/e if the spec under consideration is not the root node to be
built.
- `spack load`'s `--only` is deprecated (it has no effect now), and `spack load x`
now means: do everything that's required for `x` to work at runtime, which
requires runtime deps to be setup -- just like `spack env activate`.
- `spack load` no longer loads build deps (of build deps) ...
- `spack env activate` on partially installed or broken environments: this is all
or nothing now. If some spec errors during setup of its runtime env, you'll only
get the unconditional variables + a warning that says the runtime changes for
specs couldn't be applied.
- Remove traversal in upward direction from `setup_dependent_*` in packages.
Upward traversal may iterate to specs that aren't children of the roots
(e.g. zlib / python have hundreds of dependents, only a small fraction is
reachable from the roots. Packages should only modify the direct dependent
they receive as an argument)
Improve how mirrors are used in gitlab ci, where we have until now thought
of them as only a string.
By configuring ci mirrors ahead of time using the proposed mirror templates,
and by taking advantage of the expressiveness that spack now has for mirrors,
this PR will allow us to easily switch the protocol/url we use for fetching
binary dependencies.
This change also deprecates some gitlab functionality and marks it for
removal in Spack 0.23:
- arguments to "spack ci generate":
* --buildcache-destination
* --copy-to
- gitlab configuration options:
* enable-artifacts-buildcache
* temporary-storage-url-prefix
Currently `spack env activate --with-view` exists, but is a no-op.
So, it is not too much of a breaking change to make this redundant flag
accept a value `spack env activate --with-view <name>` which activates
a particular view by name.
The view name is stored in `SPACK_ENV_VIEW`.
This also fixes an issue where deactivating a view that was activated
with `--without-view` possibly removes entries from PATH, since now we
keep track of whether the default view was "enabled" or not.
* Allow branching out of the "generic build" unification set
For cases like the one in https://github.com/spack/spack/pull/39661
we need to relax rules on unification sets.
The issue is that, right now, nodes in the "generic build" unification
set are unified together with their build dependencies. This was done
out of caution to avoid the risk of circular dependencies, which would
ultimately cause a very slow solve.
For build-tools like Cython, however, the build dependencies is masked
by a long chain of "build, run" dependencies that belong in the
"generic build" unification space.
To allow splitting on cases like this, we relax the rule disallowing
branching out of the "generic build" unification set.
* Fix issue with pure build virtual dependencies
Pure build virtual dependencies were not accounted properly in the
list of possible virtuals. This caused some facts connecting virtuals
to the corresponding providers to not be emitted, and in the end
lead to unsat problems.
* Fixed a few issues in packages
py-gevent: restore dependency on py-cython@3
jsoncpp: fix typo in build dependency
ecp-data-vis-sdk: update spack.yaml and cmake recipe
py-statsmodels: add v0.13.5
* Make dependency on "blt" of type "build"
* e4s amd64 gcc ci stack: sync with e4s-23.08
* e4s amd64 oneapi ci stack: sync with e4s-23.08
* e4s ppc64 gcc ci stack: sync with e4s-23.08
* add new ci stack: e4s amd64 gcc w/ external rocm
* add new ci stack: e4s arm gcc ci
* updates
* py-scipy: -fvisibility issue is resolved in 2023.1.0: #39464
* paraview oneapi fails
* comment out pkgs that fail to build on power
* fix arm stack name
* fix cabana +cuda specification
* comment out failing spces
* visit fails build on arm
* comment out slepc arm builds due to make issue
* comment out failing dealii arm builds
This PR adds a new audit sub-command to check that detection of relevant packages
is performed correctly in a few scenarios mocking real use-cases. The data for each
package being tested is in a YAML file called detection_test.yaml alongside the
corresponding package.py file.
This is to allow encoding detection tests for compilers and other widely used tools,
in preparation for compilers as dependencies.
