tvl-depot/context/context.go
2017-02-08 11:50:39 +01:00

51 lines
993 B
Go

package context
import (
"encoding/json"
"github.com/polydawn/meep"
"io/ioutil"
"path"
)
type ResourceSet struct {
Name string `json:"name"`
Values map[string]interface{} `json:"values"`
}
type Context struct {
Name string `json:"context"`
Global map[string]interface{} `json:"global"`
ResourceSets []ResourceSet `json:"include"`
BaseDir string
}
type ContextLoadingError struct {
meep.AllTraits
Filename string
}
// Attempt to load and deserialise a Context from the specified file.
func LoadContextFromFile(filename string) (*Context, error) {
file, err := ioutil.ReadFile(filename)
if err != nil {
return nil, meep.New(
&ContextLoadingError{Filename: filename},
meep.Cause(err),
)
}
var c Context
err = json.Unmarshal(file, &c)
if err != nil {
return nil, meep.New(
&ContextLoadingError{Filename: filename},
meep.Cause(err),
)
}
c.BaseDir = path.Dir(filename)
return &c, nil
}