gitee.com/sy_183/go-common@v1.0.5-0.20231205030221-958cfe129b47/config/file-parser.go (about)

     1  package config
     2  
     3  import (
     4  	"fmt"
     5  	"gitee.com/sy_183/go-common/unit"
     6  	"os"
     7  )
     8  
     9  const MaxConfigFileSize = 32 * 1024 * 1024
    10  
    11  var ConfigSizeTooLargeError = fmt.Errorf("配置文件大小过大，超过限定大小(%s)", unit.Size(MaxConfigFileSize))
    12  
    13  type fileParser struct {
    14  	path string
    15  	typ  Type
    16  }
    17  
    18  func (p *fileParser) Unmarshal(c interface{}) error {
    19  	info, err := os.Stat(p.path)
    20  	if err != nil {
    21  		return err
    22  	}
    23  	if info.Size() > MaxConfigFileSize {
    24  		return ConfigSizeTooLargeError
    25  	}
    26  	data, err := os.ReadFile(p.path)
    27  	if err != nil {
    28  		return err
    29  	}
    30  	bp := &bytesParser{bytes: data, typ: p.typ}
    31  	return bp.Unmarshal(c)
    32  }