huatuo/core/metrics/utils.go

50 lines
1.0 KiB
Go

// Copyright 2025 The HuaTuo Authors
//
// 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 collector
import (
"bytes"
"io"
"os"
)
func fileLineCounter(filePath string) (int, error) {
count := 0
buf := make([]byte, 8*20*4096)
file, err := os.Open(filePath)
if err != nil {
return count, err
}
defer file.Close()
r := io.Reader(file)
for {
c, err := r.Read(buf)
count += bytes.Count(buf[:c], []byte("\n"))
if err == io.EOF {
break
}
if err != nil {
return count, err
}
}
return count, nil
}