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59 lines
1.4 KiB
Go
59 lines
1.4 KiB
Go
package conf
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import (
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path"
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"github.com/tal-tech/go-zero/core/mapping"
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)
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var loaders = map[string]func([]byte, interface{}) error{
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".json": LoadConfigFromJsonBytes,
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".yaml": LoadConfigFromYamlBytes,
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".yml": LoadConfigFromYamlBytes,
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}
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// LoadConfig loads config into v from file, .json, .yaml and .yml are acceptable.
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func LoadConfig(file string, v interface{}, opts ...Option) error {
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content, err := ioutil.ReadFile(file)
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if err != nil {
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return err
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}
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loader, ok := loaders[path.Ext(file)]
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if !ok {
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return fmt.Errorf("unrecognized file type: %s", file)
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}
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var opt options
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for _, o := range opts {
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o(&opt)
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}
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if opt.env {
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return loader([]byte(os.ExpandEnv(string(content))), v)
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}
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return loader(content, v)
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}
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// LoadConfigFromJsonBytes loads config into v from content json bytes.
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func LoadConfigFromJsonBytes(content []byte, v interface{}) error {
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return mapping.UnmarshalJsonBytes(content, v)
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}
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// LoadConfigFromYamlBytes loads config into v from content yaml bytes.
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func LoadConfigFromYamlBytes(content []byte, v interface{}) error {
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return mapping.UnmarshalYamlBytes(content, v)
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}
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// MustLoad loads config into v from path, exits on error.
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func MustLoad(path string, v interface{}, opts ...Option) {
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if err := LoadConfig(path, v, opts...); err != nil {
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log.Fatalf("error: config file %s, %s", path, err.Error())
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}
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}
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