f80d50adbd
* begin backend plugin wip * flesh out rpcplugin. everything done except for minor supervisor stubs * done with basic plugin infrastructure * simplify tests * remove unused test lines
71 строка
1.4 KiB
Go
71 строка
1.4 KiB
Go
package plugin
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import (
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"encoding/json"
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"io/ioutil"
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"os"
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"path/filepath"
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"gopkg.in/yaml.v2"
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)
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type Manifest struct {
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Id string `json:"id" yaml:"id"`
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Backend *ManifestBackend `json:"backend,omitempty" yaml:"backend,omitempty"`
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}
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type ManifestBackend struct {
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Executable string `json:"executable" yaml:"executable"`
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}
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// FindManifest will find and parse the manifest in a given directory.
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//
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// In all cases other than a does-not-exist error, path is set to the path of the manifest file that was
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// found.
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//
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// Manifests are JSON or YAML files named plugin.json, plugin.yaml, or plugin.yml.
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func FindManifest(dir string) (manifest *Manifest, path string, err error) {
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for _, name := range []string{"plugin.yml", "plugin.yaml"} {
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path = filepath.Join(dir, name)
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f, ferr := os.Open(path)
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if ferr != nil {
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if !os.IsNotExist(ferr) {
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err = ferr
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return
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}
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continue
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}
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b, ioerr := ioutil.ReadAll(f)
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f.Close()
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if ioerr != nil {
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err = ioerr
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return
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}
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var parsed Manifest
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err = yaml.Unmarshal(b, &parsed)
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if err != nil {
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return
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}
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manifest = &parsed
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return
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}
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path = filepath.Join(dir, "plugin.json")
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f, ferr := os.Open(path)
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if ferr != nil {
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if os.IsNotExist(ferr) {
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path = ""
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}
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err = ferr
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return
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}
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defer f.Close()
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var parsed Manifest
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err = json.NewDecoder(f).Decode(&parsed)
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if err != nil {
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return
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}
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manifest = &parsed
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return
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}
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