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Backport of
https://github.com/python/cpython/commit/c102a148256b00b7d48c51a1a97df19042e603de
Includes support for Python 2.
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Backport of
* https://github.com/python/cpython/commit/25160cdc4775a1ddb4e37c8bf5a6e31ad9c146ed
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- [x] add option to canonical source to *not* filter multimethods
- [x] add test to unparse every package in builtin
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Our package hash is supposed to be consistent from python version to python version.
Test this by adding some known unparse inputs and ensuring that they always have the
same canonical hash. This test relies on the fact that we run Spack's unit tests
across many python versions. We can't compute for several python versions within the
same test run so we precompute the hashes and check them in CI.
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Package hashing was not properly handling multimethods. In particular, it was removing
any functions that had decorators from the output, so we'd miss things like
`@run_after("install")`, etc.
There were also problems with handling multiple `@when`'s in a single file, and with
handling `@when` functions that *had* to be evaluated dynamically.
- [x] Rework static `@when` resolution for package hash
- [x] Ensure that functions with decorators are not removed from output
- [x] Add tests for many different @when scenarios (multiple @when's,
combining with other decorators, default/no default, etc.)
Co-authored-by: Danny McClanahan <1305167+cosmicexplorer@users.noreply.github.com>
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Previously we used `directives.__all__` to get directive names, but it wasn't
quite right -- it included `DirectiveMeta`, etc. It's not wrong, but it's also
not the clearest way to do this.
- [x] Refactor `@directive` to track names in `directive_names` global
- [x] Rename `_directive_names` to `_directive_dict_names` in `DirectiveMeta`
- [x] Add a test for `RemoveDirectives`
Co-authored-by: Danny McClanahan <1305167+cosmicexplorer@users.noreply.github.com>
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Some packages use top-level unassigned strings instead of comments, either just after a
docstring on in the body somewhere else. Ignore those strings becasue they have no
effect on package behavior.
- [x] adjust RemoveDocstrings to remove all free-standing strings.
- [x] move tests for util/package_hash.py to test/util/package_hash.py
Co-authored-by: Danny McClanahan <1305167+cosmicexplorer@users.noreply.github.com>
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Python 2 and 3 represent string literals differently in the AST. Python 2 requires '\x'
literals, and Python 3 source is always unicode, and allows unicode to be written
directly. These also unparse differently by default.
- [x] modify unparser to write both out the way `repr` would in Python 2 when
`py_ver_consistent` is provided.
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Backport operator precedence algorithm from here:
https://github.com/python/cpython/commit/397b96f6d7a89f778ebc0591e32216a8183fe667
This eliminates unnecessary parentheses from our unparsed output and makes Spack's unparser
consistent with the one in upstream Python 3.9+, with one exception.
Our parser normalizes argument order when `py_ver_consistent` is set, so that star arguments
in function calls come last. We have to do this because Python 2's AST doesn't have information
about their actual order.
If we ever support only Python 3.9 and higher, we can easily switch over to `ast.unparse`, as
the unparsing is consistent except for this detail (modulo future changes to `ast.unparse`)
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Backport of https://github.com/python/cpython/commit/4b3b1226e86df6cd45e921c8f2ad23c3639c43b2
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This is a backport of a refactor from cpython 3.9
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Previously, there were differences in the unparsed code for Python 2.7 and for 3.5-3.10.
This makes unparsed code the same across these Python versions by:
1. Ensuring there are no spaces between unary operators and
their operands.
2. Ensuring that *args and **kwargs are always the last arguments,
regardless of the python version.
3. Always unparsing print as a function.
4. Not putting an extra comma after Python 2 class definitions.
Without these changes, the same source can generate different code for different
Python versions, depending on subtle AST differences.
One place where single source will generate an inconsistent AST is with
multi-argument print statements, e.g.:
```
print("foo", "bar", "baz")
```
In Python 2, this prints a tuple; in Python 3, it is the print function with
multiple arguments. Use `from __future__ import print_function` to avoid
this inconsistency.
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Add `astunparse` as `spack_astunparse`. This library unparses Python ASTs and we're
adding it under our own name so that we can make modifications to it.
Ultimately this will be used to make `package_hash` consistent across Python versions.
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Add an abstraction around libllvm to allow libllvm
providers to be specified for all packages.
This is targeting allowing mesa to build against
llvm-amdgpu or intel-llvm or llvm or any other
custom llvm variant that arises for specific GPU
toolchains
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* Deprecate Python 2 installations
* Deprecate py-python-meep
* Deprecate older easybuild backend libs
* Deprecate Python 3.6
* Deprecate miniconda2
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This avoids dangling symlink errors. ignore_dangling_symlinks option would be more-targeted but is only available for Python >= 3.2 (#28318)
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* Python: set default config_vars
* Add missing commas
* dso_suffix not present for some reason
* Remove use of default_site_packages_dir
* Use config_vars during bootstrapping too
* Catch more errors
* Fix unit tests
* Catch more errors
* Update docstring
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* Add the petaca fortran/c package
* Adopt date for version name and remove variants
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* for Cray's libsci in blaspp, set BLA_VENDOR=all
* Update package.py
* Update package.py
* Update package.py
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