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Help: Clarify file(DOWNLOAD) behavior for existing file with same hash

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Michael Hirsch
2022-08-21 23:46:57 -04:00
committed by Craig Scott
parent 87a40b720a
commit 666b3c6f13
1 changed files with 5 additions and 2 deletions
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7
Help/command/file.rst
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@@ -1121,8 +1121,11 @@ Additional options to ``DOWNLOAD`` are:
Verify that the downloaded content hash matches the expected value, where
``ALGO`` is one of the algorithms supported by ``file(<HASH>)``.
If it does not match, the operation fails with an error. It is an error to
specify this if ``DOWNLOAD`` is not given a ``<file>``.
If the file already exists and matches the hash, the download is skipped.
If the file already exists and does not match the hash, the file is
downloaded again. If after download the file does not match the hash, the
operation fails with an error. It is an error to specify this option if
``DOWNLOAD`` is not given a ``<file>``.
``EXPECTED_MD5 <value>``
Historical short-hand for ``EXPECTED_HASH MD5=<value>``. It is an error to