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#!/bin/bash
#
# Example script for updating AppStream metadata using appstream-generator.
# This script can easily be run by a cronjob.
#
set -e
set -o pipefail
set -u
SUITES="sid stretch"
WORKSPACE_DIR="/srv/appstream/workspace"
PUBLIC_DIR="/srv/appstream/public"
# only run one instance of the script
LOCKFILE="$WORKSPACE_DIR/.lock"
cleanup() {
rm -f "$LOCKFILE"
}
if ! lockfile -r8 $LOCKFILE; then
echo "aborting AppStream metadata extraction because $LOCKFILE has already been locked"
exit 0
fi
trap cleanup 0
# Start logging
logdir="$WORKSPACE_DIR/logs/`date "+%Y/%m"`"
mkdir -p $logdir
NOW=`date "+%d_%H%M"`
LOGFILE="$logdir/${NOW}.log"
exec >> "$LOGFILE" 2>&1
cd $WORKSPACE_DIR
# generate fresh metadata
for suite in $SUITES; do
appstream-generator process $suite
done
# Sync updated data to public directory
rsync -ak --delete-after --link-dest="$PUBLIC_DIR/" "$WORKSPACE_DIR/export/" "$PUBLIC_DIR/"
# finish logging
exec > /dev/null 2>&1
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