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Merge virtuals= from duplicate dependencies (#42281)

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Previously, for abstract specs like:
```
foo ^[virtuals=a] bar ^[virtuals=b] bar
```
the second requirement was silently discarded on concretization. Now they're merged, and the abstract spec is equivalent to:
```
foo ^[virtuals=a,b] bar
```
This commit is contained in:
Massimiliano Culpo
2024-01-26 09:48:53 +01:00
committed by GitHub
parent 4c7a1f541c
commit 19df8e45ec
2 changed files with 25 additions and 8 deletions
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16
lib/spack/spack/spec.py
View File

@@ -1640,23 +1640,23 @@ def _add_dependency(self, spec: "Spec", *, depflag: dt.DepFlag, virtuals: Tuple[
self.add_dependency_edge(spec, depflag=depflag, virtuals=virtuals)
return
# Keep the intersection of constraints when a dependency is added
# multiple times. Currently, we only allow identical edge types.
# Keep the intersection of constraints when a dependency is added multiple times.
# The only restriction, currently, is keeping the same dependency type
orig = self._dependencies[spec.name]
try:
dspec = next(dspec for dspec in orig if depflag == dspec.depflag)
except StopIteration:
current_deps = ", ".join(
dt.flag_to_chars(x.depflag) + " " + x.spec.short_spec for x in orig
)
edge_attrs = f"deptypes={dt.flag_to_chars(depflag).strip()}"
required_dep_str = f"^[{edge_attrs}] {str(spec)}"
raise DuplicateDependencyError(
f"{self.short_spec} cannot depend on '{spec.short_spec}' multiple times.\n"
f"\tRequired: {dt.flag_to_chars(depflag)}\n"
f"\tDependency: {current_deps}"
f"{spec.name} is a duplicate dependency, with conflicting dependency types\n"
f"\t'{str(self)}' cannot depend on '{required_dep_str}'"
)
try:
dspec.spec.constrain(spec)
dspec.update_virtuals(virtuals=virtuals)
except spack.error.UnsatisfiableSpecError:
raise DuplicateDependencyError(
f"Cannot depend on incompatible specs '{dspec.spec}' and '{spec}'"

17
lib/spack/spack/test/spec_syntax.py
View File

@@ -523,6 +523,23 @@ def _specfile_for(spec_str, filename):
],
"^[virtuals=mpi] openmpi",
),
# Allow merging attributes, if deptypes match
(
"^[virtuals=mpi] openmpi+foo ^[virtuals=lapack] openmpi+bar",
[
Token(TokenType.START_EDGE_PROPERTIES, value="^["),
Token(TokenType.KEY_VALUE_PAIR, value="virtuals=mpi"),
Token(TokenType.END_EDGE_PROPERTIES, value="]"),
Token(TokenType.UNQUALIFIED_PACKAGE_NAME, value="openmpi"),
Token(TokenType.BOOL_VARIANT, value="+foo"),
Token(TokenType.START_EDGE_PROPERTIES, value="^["),
Token(TokenType.KEY_VALUE_PAIR, value="virtuals=lapack"),
Token(TokenType.END_EDGE_PROPERTIES, value="]"),
Token(TokenType.UNQUALIFIED_PACKAGE_NAME, value="openmpi"),
Token(TokenType.BOOL_VARIANT, value="+bar"),
],
"^[virtuals=lapack,mpi] openmpi+bar+foo",
),
(
"^[deptypes=link,build] zlib",
[