Golang打包配置文件的实现示例

NAME = mycli
CONFIG = configs/config.yaml

.PHONY: build

build:
    cp $(CONFIG) config.yaml
    mkdir -p cmd/mycli/asset
    go-bindata -pkg asset -o cmd/mycli/asset/asset.go \
        scripts/... \
        config.yaml
    
    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o bin/linux/mycli cmd/mycli/*.go
    CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -o bin/darwin/mycli cmd/mycli/*.go
    
    chmod +x ./bin/linux/mycli ./bin/darwin/mycli
    rm -f config.yaml mycli
    ln -s bin/linux/mycli mycli

go-bindata -pkg asset -o cmd/mycli/asset/asset.go \
    scripts/... \
    config.yaml

// Code generated by go-bindata.
// sources:
// scripts/create.sh
// scripts/sub/delete.sh
// config.yaml
// DO NOT EDIT!

package asset

func bindataRead(data []byte, name string) ([]byte, error) {
    ...
}

type asset struct {
 bytes []byte
 info  os.FileInfo
}

type bindataFileInfo struct {
 name    string
 size    int64
 mode    os.FileMode
 modTime time.Time
}

func (fi bindataFileInfo) Name() string {
 return fi.name
}
func (fi bindataFileInfo) Size() int64 {
 return fi.size
}
func (fi bindataFileInfo) Mode() os.FileMode {
 return fi.mode
}
func (fi bindataFileInfo) ModTime() time.Time {
 return fi.modTime
}
func (fi bindataFileInfo) IsDir() bool {
 return false
}
func (fi bindataFileInfo) Sys() interface{} {
 return nil
}

...

const preloadConfigFile = "config.yaml"

type Config struct {
    ...
}

func PreloadConfig() (*Config, error) {
    b, err := asset.Asset(preloadConfigFile)
    if err != nil {
        return nil, fmt.Errorf("failed to read config: %v", err)
    }
    var config *Config
    err = yaml.Unmarshal(b, &config)
    return config, err
}