Docs update for deprecated spack sha256 (#13701)

* Docs update for deprecated `spack sha256`

* Added macOS shasum

* Update lib/spack/docs/packaging_guide.rst

Co-Authored-By: Adam J. Stewart <ajstewart426@gmail.com>
This commit is contained in:
William F Godoy 2019-11-13 16:21:27 -05:00 committed by Adam J. Stewart
parent 9ae4f42ab5
commit d6274e1a1d

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@ -1464,8 +1464,8 @@ that the same package with different patches applied will have different
hash identifiers. To ensure that the hashing scheme is consistent, you hash identifiers. To ensure that the hashing scheme is consistent, you
must use a ``sha256`` checksum for the patch. Patches will be fetched must use a ``sha256`` checksum for the patch. Patches will be fetched
from their URLs, checked, and applied to your source code. You can use from their URLs, checked, and applied to your source code. You can use
the ``spack sha256`` command to generate a checksum for a patch file or the GNU utils ``sha256sum`` or the macOS ``shasum -a 256`` commands to
URL. generate a checksum for a patch file.
Spack can also handle compressed patches. If you use these, Spack needs Spack can also handle compressed patches. If you use these, Spack needs
a little more help. Specifically, it needs *two* checksums: the a little more help. Specifically, it needs *two* checksums: the