114 lines
2.4 KiB
Go
114 lines
2.4 KiB
Go
package jobspec
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// These functions are copied from helper/funcs.go
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// added here to avoid jobspec depending on any other package
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import (
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"fmt"
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"reflect"
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"strings"
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"time"
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multierror "github.com/hashicorp/go-multierror"
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"github.com/hashicorp/hcl/hcl/ast"
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)
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// stringToPtr returns the pointer to a string
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func stringToPtr(str string) *string {
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return &str
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}
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// timeToPtr returns the pointer to a time.Duration.
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func timeToPtr(t time.Duration) *time.Duration {
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return &t
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}
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// boolToPtr returns the pointer to a boolean
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func boolToPtr(b bool) *bool {
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return &b
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}
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func checkHCLKeys(node ast.Node, valid []string) error {
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var list *ast.ObjectList
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switch n := node.(type) {
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case *ast.ObjectList:
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list = n
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case *ast.ObjectType:
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list = n.List
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default:
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return fmt.Errorf("cannot check HCL keys of type %T", n)
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}
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validMap := make(map[string]struct{}, len(valid))
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for _, v := range valid {
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validMap[v] = struct{}{}
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}
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var result error
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for _, item := range list.Items {
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key := item.Keys[0].Token.Value().(string)
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if _, ok := validMap[key]; !ok {
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result = multierror.Append(result, fmt.Errorf(
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"invalid key: %s", key))
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}
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}
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return result
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}
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// UnusedKeys returns a pretty-printed error if any `hcl:",unusedKeys"` is not empty
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func unusedKeys(obj interface{}) error {
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val := reflect.ValueOf(obj)
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if val.Kind() == reflect.Ptr {
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val = reflect.Indirect(val)
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}
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return unusedKeysImpl([]string{}, val)
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}
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func unusedKeysImpl(path []string, val reflect.Value) error {
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stype := val.Type()
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for i := 0; i < stype.NumField(); i++ {
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ftype := stype.Field(i)
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fval := val.Field(i)
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tags := strings.Split(ftype.Tag.Get("hcl"), ",")
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name := tags[0]
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tags = tags[1:]
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if fval.Kind() == reflect.Ptr {
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fval = reflect.Indirect(fval)
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}
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// struct? recurse. Add the struct's key to the path
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if fval.Kind() == reflect.Struct {
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err := unusedKeysImpl(append([]string{name}, path...), fval)
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if err != nil {
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return err
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}
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continue
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}
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// Search the hcl tags for "unusedKeys"
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unusedKeys := false
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for _, p := range tags {
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if p == "unusedKeys" {
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unusedKeys = true
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break
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}
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}
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if unusedKeys {
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ks, ok := fval.Interface().([]string)
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if ok && len(ks) != 0 {
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ps := ""
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if len(path) > 0 {
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ps = strings.Join(path, ".") + " "
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}
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return fmt.Errorf("%sunexpected keys %s",
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ps,
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strings.Join(ks, ", "))
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}
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}
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}
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return nil
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}
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