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file.go
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file.go
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package env
import (
"bytes"
"io"
"io/ioutil"
"os"
"strings"
"github.com/eolinker/eosc"
"github.com/eolinker/eosc/log"
)
type Config struct {
path string
args eosc.IUntyped
}
func NewConfig(path string) *Config {
return &Config{path: path, args: eosc.NewUntyped()}
}
func (c *Config) ReadFile(paths ...string) {
for _, path := range paths {
// 参数配置文件格式:分行获取
data, err := ioutil.ReadFile(path)
if err != nil {
continue
}
buf := bytes.NewBuffer(data)
for {
line, err := buf.ReadString('\n')
if err != nil && err != io.EOF {
break
}
line = strings.TrimSpace(line)
if len(line) > 0 {
index := strings.Index(line, "=")
if index == -1 {
continue
}
c.Set(line[:index], line[index+1:])
}
if err != nil {
return
}
}
}
}
func (c *Config) Set(name string, value string) {
if name != "" {
c.args.Set(name, value)
}
}
func (c *Config) Get(name string) (string, bool) {
vl, has := c.args.Get(name)
if !has {
return "", false
}
v, ok := vl.(string)
if !ok {
return "", false
}
return v, true
}
func (c *Config) GetDefault(name string, value string) string {
vl, has := c.args.Get(name)
if !has {
return value
}
v, ok := vl.(string)
if !ok {
return value
}
return v
}
func (c *Config) Save() error {
builder := strings.Builder{}
for key, value := range c.args.All() {
v, ok := value.(string)
if !ok {
continue
}
builder.WriteString(key)
builder.WriteString("=")
builder.WriteString(v)
builder.WriteString("\n")
}
f, err := os.OpenFile(c.path, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
if err != nil {
return err
}
defer f.Close()
// offset
_, err = f.Write([]byte(builder.String()))
if err != nil {
return err
}
log.Info("write args file succeed!")
return nil
}