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dispatcher: avoid "dirname" and "basename" calls in "10-ifcfg-rh-routes.sh" script

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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.
This commit is contained in:
Thomas Haller 2019-10-04 11:18:53 +02:00
parent babd1f314e
commit c6d53c5500
1 changed files with 5 additions and 9 deletions
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14
examples/dispatcher/10-ifcfg-rh-routes.sh
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@ -16,17 +16,13 @@ if [ "$2" != "pre-up" ] && [ "$2" != "down" ]; then
exit 0
fi
dir=$(dirname "$CONNECTION_FILENAME")
if [ "$dir" != "/etc/sysconfig/network-scripts" ]; then
exit 0
fi
file_regex='^/etc/sysconfig/network-scripts/ifcfg-([^/]+)$'
profile=$(basename "$CONNECTION_FILENAME" | sed -ne 's/^ifcfg-//p')
if [ -z "$profile" ]; then
exit 0
fi
[[ "$CONNECTION_FILENAME" =~ $file_regex ]] || exit 0
if [ ! -f "$dir/rule-$profile" ] && [ ! -f "$dir/rule6-$profile" ]; then
profile="${BASH_REMATCH[1]}"
if [ ! -f "/etc/sysconfig/network-scripts/rule-$profile" ] && [ ! -f "/etc/sysconfig/network-scripts/rule6-$profile" ]; then
exit 0
fi