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// Copyright 2019 The Hugo Authors. All rights reserved.
//
// 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 config
import (
"os"
"runtime"
"strconv"
"strings"
)
// GetNumWorkerMultiplier returns the base value used to calculate the number
// of workers to use for Hugo's parallel execution.
// It returns the value in HUGO_NUMWORKERMULTIPLIER OS env variable if set to a
// positive integer, else the number of logical CPUs.
func GetNumWorkerMultiplier() int {
if gmp := os.Getenv("HUGO_NUMWORKERMULTIPLIER"); gmp != "" {
if p, err := strconv.Atoi(gmp); err == nil && p > 0 {
return p
}
}
return runtime.NumCPU()
}
// SetEnvVars sets vars on the form key=value in the oldVars slice.
func SetEnvVars(oldVars *[]string, keyValues ...string) {
for i := 0; i < len(keyValues); i += 2 {
setEnvVar(oldVars, keyValues[i], keyValues[i+1])
}
}
func SplitEnvVar(v string) (string, string) {
name, value, _ := strings.Cut(v, "=")
return name, value
}
func setEnvVar(vars *[]string, key, value string) {
for i := range *vars {
if strings.HasPrefix((*vars)[i], key+"=") {
(*vars)[i] = key + "=" + value
return
}
}
// New var.
*vars = append(*vars, key+"="+value)
}
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