63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package config
|
|
|
|
import "regexp"
|
|
|
|
// dsnPattern is a regular expression matching a database DSN string.
|
|
var dsnPattern = regexp.MustCompile(
|
|
`^((?P<driver>.*):\/\/)?(?:(?P<user>.*?)(?::(?P<password>.*))?@)?` +
|
|
`(?:(?P<net>[^\(]*)(?:\((?P<server>[^\)]*)\))?)?` +
|
|
`\/(?P<name>.*?)` +
|
|
`(?:\?(?P<params>[^\?]*))?$`)
|
|
|
|
// DSN represents parts of a data source name.
|
|
type DSN struct {
|
|
Driver string
|
|
User string
|
|
Password string
|
|
Net string
|
|
Server string
|
|
Name string
|
|
Params string
|
|
}
|
|
|
|
// NewDSN creates a new DSN struct from a string.
|
|
func NewDSN(dsn string) DSN {
|
|
d := DSN{}
|
|
d.Parse(dsn)
|
|
return d
|
|
}
|
|
|
|
// Parse parses a data source name string.
|
|
func (d *DSN) Parse(dsn string) {
|
|
if dsn == "" {
|
|
return
|
|
}
|
|
|
|
matches := dsnPattern.FindStringSubmatch(dsn)
|
|
names := dsnPattern.SubexpNames()
|
|
|
|
for i, match := range matches {
|
|
switch names[i] {
|
|
case "driver":
|
|
d.Driver = match
|
|
case "user":
|
|
d.User = match
|
|
case "password":
|
|
d.Password = match
|
|
case "net":
|
|
d.Net = match
|
|
case "server":
|
|
d.Server = match
|
|
case "name":
|
|
d.Name = match
|
|
case "params":
|
|
d.Params = match
|
|
}
|
|
}
|
|
|
|
if d.Net != "" && d.Server == "" {
|
|
d.Server = d.Net
|
|
d.Net = ""
|
|
}
|
|
}
|