Currently, all of the replacements in `spack.util.path.replacements()` get evaluated for
each replacement. This makes it easy to get bootstrap issues, because config is used
very early on in Spack.
Right now, if I run `test_autotools_gnuconfig_replacement_no_gnuconfig` on my M1 mac, I
get the circular reference error below. This fixes the issue by making all of the path
replacements lazy lambdas.
As a bonus, this cleans up the way we do substitution for `$env` -- it's consistent with
other substitutions now.
- [x] make all path `replacements()` lazy
- [x] clean up handling of `$env`
```console
> spack unit-test -k test_autotools_gnuconfig_replacement_no_gnuconfig
...
==> [2022-12-31-15:44:21.771459] Error: AttributeError:
The 'autotools-config-replacement' package cannot find an attribute while trying to build from sources. This might be due to a change in Spack's package format to support multiple build-systems for a single package. You can fix this by updating the build recipe, and you can also report the issue as a bug. More information at https://spack.readthedocs.io/en/latest/packaging_guide.html#installation-procedure
/Users/gamblin2/src/spack/lib/spack/spack/package_base.py:1332, in prefix:
1330 @property
1331 def prefix(self):
>> 1332 """Get the prefix into which this package should be installed."""
1333 return self.spec.prefix
Traceback (most recent call last):
File "/Users/gamblin2/src/spack/lib/spack/spack/build_environment.py", line 1030, in _setup_pkg_and_run
kwargs["env_modifications"] = setup_package(
^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/build_environment.py", line 757, in setup_package
set_module_variables_for_package(pkg)
File "/Users/gamblin2/src/spack/lib/spack/spack/build_environment.py", line 596, in set_module_variables_for_package
m.std_cmake_args = spack.build_systems.cmake.CMakeBuilder.std_args(pkg)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/build_systems/cmake.py", line 241, in std_args
define("CMAKE_INSTALL_PREFIX", pkg.prefix),
^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/package_base.py", line 1333, in prefix
return self.spec.prefix
^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/spec.py", line 1710, in prefix
self.prefix = spack.store.layout.path_for_spec(self)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/directory_layout.py", line 336, in path_for_spec
path = self.relative_path_for_spec(spec)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/directory_layout.py", line 106, in relative_path_for_spec
projection = spack.projections.get_projection(self.projections, spec)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/projections.py", line 13, in get_projection
if spec.satisfies(spec_like, strict=True):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/spec.py", line 3642, in satisfies
if not self.virtual and other.virtual:
^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/spec.py", line 1622, in virtual
return spack.repo.path.is_virtual(self.name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/repo.py", line 890, in is_virtual
return have_name and pkg_name in self.provider_index
^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/repo.py", line 770, in provider_index
self._provider_index.merge(repo.provider_index)
^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/repo.py", line 1096, in provider_index
return self.index["providers"]
~~~~~~~~~~^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/repo.py", line 592, in __getitem__
self._build_all_indexes()
File "/Users/gamblin2/src/spack/lib/spack/spack/repo.py", line 607, in _build_all_indexes
self.indexes[name] = self._build_index(name, indexer)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/spack/repo.py", line 616, in _build_index
index_mtime = self.cache.mtime(cache_filename)
^^^^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/llnl/util/lang.py", line 826, in __getattr__
return getattr(self.instance, name)
^^^^^^^^^^^^^
File "/Users/gamblin2/src/spack/lib/spack/llnl/util/lang.py", line 825, in __getattr__
raise AttributeError()
AttributeError
```
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