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88 lines
2.0 KiB
88 lines
2.0 KiB
// Copyright 2018 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package util
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import (
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"io/ioutil"
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"strconv"
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"strings"
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)
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// ParseUint32s parses a slice of strings into a slice of uint32s.
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func ParseUint32s(ss []string) ([]uint32, error) {
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us := make([]uint32, 0, len(ss))
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for _, s := range ss {
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u, err := strconv.ParseUint(s, 10, 32)
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if err != nil {
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return nil, err
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}
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us = append(us, uint32(u))
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}
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return us, nil
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}
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// ParseUint64s parses a slice of strings into a slice of uint64s.
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func ParseUint64s(ss []string) ([]uint64, error) {
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us := make([]uint64, 0, len(ss))
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for _, s := range ss {
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u, err := strconv.ParseUint(s, 10, 64)
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if err != nil {
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return nil, err
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}
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us = append(us, u)
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}
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return us, nil
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}
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// ParsePInt64s parses a slice of strings into a slice of int64 pointers.
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func ParsePInt64s(ss []string) ([]*int64, error) {
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us := make([]*int64, 0, len(ss))
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for _, s := range ss {
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u, err := strconv.ParseInt(s, 10, 64)
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if err != nil {
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return nil, err
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}
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us = append(us, &u)
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}
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return us, nil
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}
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// ReadUintFromFile reads a file and attempts to parse a uint64 from it.
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func ReadUintFromFile(path string) (uint64, error) {
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data, err := ioutil.ReadFile(path)
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if err != nil {
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return 0, err
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}
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return strconv.ParseUint(strings.TrimSpace(string(data)), 10, 64)
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}
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// ParseBool parses a string into a boolean pointer.
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func ParseBool(b string) *bool {
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var truth bool
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switch b {
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case "enabled":
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truth = true
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case "disabled":
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truth = false
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default:
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return nil
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}
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return &truth
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}
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