John W. Parent 30f6fd8dc0 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.		2022-09-26 00:01:42 -07:00
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util	Fetching/decompressing: use magic numbers (#31589)	2022-09-26 00:01:42 -07:00
__init__.py	Update copyright year to 2022	2022-01-14 22:50:21 -08:00