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concurrency.go
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concurrency.go
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// Copyright © 2021 Weald Technology Trading.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package util
import (
"fmt"
"strings"
"github.com/spf13/viper"
)
// ProcessConcurrency returns the best process concurrency for the path.
func ProcessConcurrency(path string) int64 {
if path == "" {
return viper.GetInt64("process-concurrency")
}
key := fmt.Sprintf("%s.process-concurrency", path)
if viper.GetString(key) != "" {
return viper.GetInt64(key)
}
// Lop off the child and try again.
lastPeriod := strings.LastIndex(path, ".")
if lastPeriod == -1 {
return ProcessConcurrency("")
}
return ProcessConcurrency(path[0:lastPeriod])
}