5fb17b967e
Drop using the "images" library blueprint types and use the ones from github.com/osbuild/blueprint/pkg/blueprint instead. This also moves to the images library to v0.172.0 and the blueprints library to v1.12.0 as this is required for this to work.
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package blueprintload
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import (
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"encoding/json"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"github.com/BurntSushi/toml"
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"github.com/osbuild/blueprint/pkg/blueprint"
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)
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// XXX: move this helper into images, share with bib
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func decodeToml(r io.Reader, what string) (*blueprint.Blueprint, error) {
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dec := toml.NewDecoder(r)
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var conf blueprint.Blueprint
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metadata, err := dec.Decode(&conf)
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if err != nil {
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return nil, fmt.Errorf("cannot decode %q: %w", what, err)
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}
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if len(metadata.Undecoded()) > 0 {
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return nil, fmt.Errorf("cannot decode %q: unknown keys found: %v", what, metadata.Undecoded())
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}
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return &conf, nil
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}
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func decodeJson(r io.Reader, what string) (*blueprint.Blueprint, error) {
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dec := json.NewDecoder(r)
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dec.DisallowUnknownFields()
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var conf blueprint.Blueprint
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if err := dec.Decode(&conf); err != nil {
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return nil, fmt.Errorf("cannot decode %q: %w", what, err)
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}
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if dec.More() {
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return nil, fmt.Errorf("multiple configuration objects or extra data found in %q", what)
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}
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return &conf, nil
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}
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func Load(path string) (*blueprint.Blueprint, error) {
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var fp io.ReadCloser
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var err error
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switch path {
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case "":
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return &blueprint.Blueprint{}, nil
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case "-":
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fp = os.Stdin
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default:
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fp, err = os.Open(path)
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if err != nil {
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return nil, err
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}
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defer fp.Close()
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}
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switch {
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case path == "-", filepath.Ext(path) == ".json":
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return decodeJson(fp, path)
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case filepath.Ext(path) == ".toml":
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return decodeToml(fp, path)
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default:
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return nil, fmt.Errorf("unsupported file extension for %q (please use .toml or .json)", path)
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}
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}
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