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plugin: refactor plugin system to support initialization reporting

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Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day
2017-10-09 20:43:04 -07:00
parent fe52d9369f
commit 8508e8252b
21 changed files with 216 additions and 80 deletions
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11
services/diff/service.go
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@@ -32,8 +32,8 @@ func init() {
Config: &config{
Order: []string{"walking"},
},
Init: func(ic *plugin.InitContext) (interface{}, error) {
differs, err := ic.GetAll(plugin.DiffPlugin)
InitFn: func(ic *plugin.InitContext) (interface{}, error) {
differs, err := ic.GetByType(plugin.DiffPlugin)
if err != nil {
return nil, err
}
@@ -41,10 +41,15 @@ func init() {
orderedNames := ic.Config.(*config).Order
ordered := make([]plugin.Differ, len(orderedNames))
for i, n := range orderedNames {
differ, ok := differs[n]
differp, ok := differs[n]
if !ok {
return nil, errors.Errorf("needed differ not loaded: %s", n)
}
differ, err := differp.Instance()
if err != nil {
return nil, errors.Wrapf(err, "could not load required differ due plugin init error: %s", n)
}
ordered[i] = differ.(plugin.Differ)
}