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author | Harmen Stoppels <harmenstoppels@gmail.com> | 2022-03-24 10:54:33 +0100 |
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committer | GitHub <noreply@github.com> | 2022-03-24 03:54:33 -0600 |
commit | 59e522e8154e28d7af3f0cc8538e5a94d1345352 (patch) | |
tree | 04b4ce3b4cb81c1a0f5bf8cbec11dc98e01a1051 /var/spack/repos/builtin.mock/packages/view-dir-symlinked-dir/package.py | |
parent | 011a8b3f3ec044ab906597ca39e53639a6bf1df6 (diff) | |
download | spack-59e522e8154e28d7af3f0cc8538e5a94d1345352.tar.gz spack-59e522e8154e28d7af3f0cc8538e5a94d1345352.tar.bz2 spack-59e522e8154e28d7af3f0cc8538e5a94d1345352.tar.xz spack-59e522e8154e28d7af3f0cc8538e5a94d1345352.zip |
environment views: single pass view generation (#29443)
Reduces the number of stat calls to a bare minimum:
- Single pass over src prefixes
- Handle projection clashes in memory
Symlinked directories in the src prefixes are now conditionally
transformed into directories with symlinks in the dst dir. Notably
`intel-mkl`, `cuda` and `qt` has top-level symlinked directories that
previously resulted in empty directories in the view. We now avoid
cycles and possible exponential blowup by only expanding symlinks that:
- point to dirs deeper in the folder structure;
- are a fixed depth of 2.
Diffstat (limited to 'var/spack/repos/builtin.mock/packages/view-dir-symlinked-dir/package.py')
-rw-r--r-- | var/spack/repos/builtin.mock/packages/view-dir-symlinked-dir/package.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/var/spack/repos/builtin.mock/packages/view-dir-symlinked-dir/package.py b/var/spack/repos/builtin.mock/packages/view-dir-symlinked-dir/package.py new file mode 100644 index 0000000000..ae0d90541b --- /dev/null +++ b/var/spack/repos/builtin.mock/packages/view-dir-symlinked-dir/package.py @@ -0,0 +1,23 @@ +# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other +# Spack Project Developers. See the top-level COPYRIGHT file for details. +# +# SPDX-License-Identifier: (Apache-2.0 OR MIT) + +import os + + +class ViewDirSymlinkedDir(Package): + """Installs <prefix>/bin/x/file_in_symlinked_dir where x -> y is a symlinked dir. + This should be mergeable with view-dir-dir, but not with view-dir-file.""" + homepage = "http://www.spack.org" + url = "http://www.spack.org/downloads/aml-1.0.tar.gz" + has_code = False + + version('0.1.0', sha256='cc89a8768693f1f11539378b21cdca9f0ce3fc5cb564f9b3e4154a051dcea69b') + + def install(self, spec, prefix): + os.mkdir(os.path.join(prefix, 'bin')) + os.mkdir(os.path.join(prefix, 'bin', 'y')) + with open(os.path.join(prefix, 'bin', 'y', 'file_in_symlinked_dir'), 'wb') as f: + f.write(b'hello world') + os.symlink('y', os.path.join(prefix, 'bin', 'x')) |