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authorJohn W. Parent <45471568+johnwparent@users.noreply.github.com>2022-09-26 03:01:42 -0400
committerGitHub <noreply@github.com>2022-09-26 00:01:42 -0700
commit30f6fd8dc060a9b120e5c4ce94f80a60e7bf7e51 (patch)
tree8d9b04d76ae33968f9942d16904d9883da1f82a8 /.gitattributes
parenta5ea566bdfe066f5f41e9e19c636d32f4ed41810 (diff)
downloadspack-30f6fd8dc060a9b120e5c4ce94f80a60e7bf7e51.tar.gz
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Fetching/decompressing: use magic numbers (#31589)
Spack currently depends on parsing filenames of downloaded files to determine what type of archive they are and how to decompress them. This commit adds a preliminary check based on magic numbers to determine archive type (but falls back on name parsing if the extension type cannot be determined). As part of this work, this commit also enables decompression of .tar.xz-compressed archives on Windows.
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