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dispatcher: avoid "dirname" and "basename" calls in "10-ifcfg-rh-routes.sh" script
The script is run for every dispatcher event. Most of the events are not actually relevant, and we just need to determine that there is nothing to do and quit. Avoid calling "dirname" and "basename". The supported ifcfg-file has a very specific form. We can just check (and parse) it in one got regular expression in bash.
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@ -16,17 +16,13 @@ if [ "$2" != "pre-up" ] && [ "$2" != "down" ]; then
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exit 0
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fi
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dir=$(dirname "$CONNECTION_FILENAME")
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if [ "$dir" != "/etc/sysconfig/network-scripts" ]; then
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exit 0
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fi
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file_regex='^/etc/sysconfig/network-scripts/ifcfg-([^/]+)$'
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profile=$(basename "$CONNECTION_FILENAME" | sed -ne 's/^ifcfg-//p')
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if [ -z "$profile" ]; then
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exit 0
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fi
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[[ "$CONNECTION_FILENAME" =~ $file_regex ]] || exit 0
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if [ ! -f "$dir/rule-$profile" ] && [ ! -f "$dir/rule6-$profile" ]; then
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profile="${BASH_REMATCH[1]}"
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if [ ! -f "/etc/sysconfig/network-scripts/rule-$profile" ] && [ ! -f "/etc/sysconfig/network-scripts/rule6-$profile" ]; then
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exit 0
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fi
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