git/t/t7519/fsmonitor-all
Kevin Willford 8da2c57629 fsmonitor: handle version 2 of the hooks that will use opaque token
Some file monitors like watchman will use something other than a timestamp
to keep better track of what changes happen in between calls to query
the fsmonitor. The clockid in watchman is a string. Now that the index
is storing an opaque token for the last update the code needs to be
updated to pass that opaque token to a verion 2 of the fsmonitor hook.

Because there are repos that already have version 1 of the hook and we
want them to continue to work when git is updated, we need to handle
both version 1 and version 2 of the hook. In order to do that a
config value is being added core.fsmonitorHookVersion to force what
version of the hook should be used.  When this is not set it will default
to -1 and then the code will attempt to call version 2 of the hook first.
If that fails it will fallback to trying version 1.

Signed-off-by: Kevin Willford <Kevin.Willford@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-13 14:58:43 -08:00

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#!/bin/sh
#
# An test hook script to integrate with git to test fsmonitor.
#
# The hook is passed a version (currently 1) and a time in nanoseconds
# formatted as a string and outputs to stdout all files that have been
# modified since the given time. Paths must be relative to the root of
# the working tree and separated by a single NUL.
#
#echo "$0 $*" >&2
if test "$#" -ne 2
then
echo "$0: exactly 2 arguments expected" >&2
exit 2
fi
if test "$1" != 1
then
exit 1
fi
echo "/"