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[enh] add ynh_find_port helper

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nemsia 2017-05-09 22:44:48 +02:00 • committed by GitHub
parent 8d0167400d
commit d96c5061d6
1 changed files with 17 additions and 1 deletions
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16
scripts/_common.sh
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@ -103,3 +103,19 @@ ynh_remove_app_dependencies () {
dep_app=${app//_/-} # Replace all '_' by '-'
ynh_package_autoremove ${dep_app}-ynh-deps # Remove the fake package and its dependencies if they not still used.
}
# Find a free port and return it
#
# example: port=$(ynh_find_port 8080)
#
# usage: ynh_find_port begin_port
# | arg: begin_port - port to start to search
ynh_find_port () {
port=$1
test -n "$port" || ynh_die "The argument of ynh_find_port must be a valid port."
while netcat -z 127.0.0.1 $port # Check if the port is free
do
port=$((port+1)) # Else, pass to next port
done
echo $port
}