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var_kv.go
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/
var_kv.go
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package template
import (
"strings"
bosherr "github.com/cloudfoundry/bosh-utils/errors"
"gopkg.in/yaml.v2"
)
type VarKV struct {
Name string
Value interface{}
}
func (a *VarKV) UnmarshalFlag(data string) error {
pieces := strings.SplitN(data, "=", 2)
if len(pieces) != 2 {
return bosherr.Errorf("Expected var '%s' to be in format 'name=value'", data)
}
if len(pieces[0]) == 0 {
return bosherr.Errorf("Expected var '%s' to specify non-empty name", data)
}
if len(pieces[1]) == 0 {
return bosherr.Errorf("Expected var '%s' to specify non-empty value", data)
}
var vars interface{}
err := yaml.Unmarshal([]byte(pieces[1]), &vars)
if err != nil {
return bosherr.WrapErrorf(err, "Deserializing variables '%s'", data)
}
*a = VarKV{Name: pieces[0], Value: vars}
return nil
}