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main.go
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main.go
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package main
import (
"fmt"
"io/ioutil"
"os"
"github.com/manno/kin-openapi/openapi3"
yaml "gopkg.in/yaml.v2"
)
func loadSpec(path string) (*openapi3.Swagger, error) {
fmt.Printf("loading spec from: %s\n", path)
data, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
loader := openapi3.NewSwaggerLoader()
doc, err := loader.LoadSwaggerFromYAMLData(data)
if err != nil {
return nil, fmt.Errorf("failed to load spec: %s", err)
}
fmt.Printf("loaded: %s\n", doc.Info.Title)
err = doc.Validate(loader.Context)
if err != nil {
return nil, fmt.Errorf("failed to validate spec: %s", err)
}
return doc, nil
}
func loadYAML(path string) (data []byte, err error) {
fmt.Printf("loading doc from: %s\n", path)
data, err = ioutil.ReadFile(path)
return
}
// kin-openapi does not support map[interface{}]interface{}
// https://stackoverflow.com/questions/40737122/convert-yaml-to-json-without-struct?answertab=votes#tab-top
func convert(i interface{}) interface{} {
switch x := i.(type) {
case map[interface{}]interface{}:
m2 := map[string]interface{}{}
for k, v := range x {
m2[k.(string)] = convert(v)
}
return m2
case []interface{}:
for i, v := range x {
x[i] = convert(v)
}
}
return i
}
func main() {
fpath := os.Args[1]
spec, err := loadSpec(fpath)
if err != nil {
panic(err)
}
schema := spec.Components.Schemas["DeploymentManifest"]
if schema == nil {
for k, _ := range spec.Components.Schemas {
fmt.Printf("found schema: %s\n", k)
}
panic("failed to find BOSH schema: DeploymentManifest")
}
data, err := loadYAML(os.Args[2])
if err != nil {
panic(fmt.Errorf("failed to load yaml: %s", err))
}
var manifest interface{}
if err := yaml.Unmarshal(data, &manifest); err != nil {
panic(fmt.Errorf("failed to jsonize manifest: %s", err))
}
err = schema.Value.VisitJSON(convert(manifest))
if v, ok := err.(*openapi3.SchemaError); ok {
text, _ := yaml.Marshal(v.Value)
fmt.Println(string(text))
fmt.Printf("failed on field '%s': %s\n", v.SchemaField, v.Reason)
os.Exit(1)
}
fmt.Println("validation: ok")
}