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dirstate: introduce a "tracked-key" feature...
dirstate: introduce a "tracked-key" feature A new format variant is introduced. When used, a `tracked-key` file will be generated. That file will be update when the set of tracked file might have changed. This will be useful for external automation (e.g. build tool) to be notified when the set of relevant files changes. One of the motivation for this changes is to mitigate effect dirstate-v2 has on such automation. Since the dirstate file is updated much more frequently on dirstate-v2, monitoring update to that file is no longer a viable strategy. See the associated documentation for details about the feature To prevent older client to update the repository without updating that file, a new requirements is introduced. The `postfinalizegenerators` business is a bit weird, so I'll likely clean that up soon. Differential Revision: https://phab.mercurial-scm.org/D12124
Joerg Sonnenberger - - Load All Authors

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wait-on-file
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/ tests / testlib / wait-on-file
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#!/bin/sh
#
# wait up to TIMEOUT seconds until a WAIT_ON_FILE is created.
#
# In addition, this script can create CREATE_FILE once it is ready to wait.
if [ $# -lt 2 ] || [ $# -gt 3 ]; then
echo $#
echo "USAGE: $0 TIMEOUT WAIT_ON_FILE [CREATE_FILE]"
fi
timer="$1"
# Scale the timeout to match the sleep steps below, i.e. 1/0.02.
timer=$(( 50 * $timer ))
# If the test timeout have been extended, also scale the timer relative
# to the normal timing.
if [ "$HGTEST_TIMEOUT_DEFAULT" -lt "$HGTEST_TIMEOUT" ]; then
timer=$(( ( $timer * $HGTEST_TIMEOUT) / $HGTEST_TIMEOUT_DEFAULT ))
fi
wait_on="$2"
create=""
if [ $# -eq 3 ]; then
create="$3"
fi
if [ -n "$create" ]; then
touch "$create"
create=""
fi
while [ "$timer" -gt 0 ] && [ ! -f "$wait_on" ]; do
timer=$(( $timer - 1))
sleep 0.02
done
if [ "$timer" -le 0 ]; then
echo "file not created after $1 seconds: $wait_on" >&2
exit 1
fi