7b2a918213
Remove containerd specific parts of the plugin package to prepare its move out of the main repository. Separate the plugin registration singleton into a separate package. Separating out the plugin package and registration makes it easier to implement external plugins without creating a dependency loop. Signed-off-by: Derek McGowan <derek@mcg.dev>
58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package plugin
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import (
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"github.com/containerd/containerd/diff"
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"github.com/containerd/containerd/diff/apply"
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"github.com/containerd/containerd/diff/walking"
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"github.com/containerd/containerd/metadata"
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"github.com/containerd/containerd/platforms"
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"github.com/containerd/containerd/plugin"
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"github.com/containerd/containerd/plugin/registry"
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"github.com/containerd/containerd/plugins"
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)
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func init() {
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registry.Register(&plugin.Registration{
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Type: plugins.DiffPlugin,
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ID: "walking",
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Requires: []plugin.Type{
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plugins.MetadataPlugin,
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},
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InitFn: func(ic *plugin.InitContext) (interface{}, error) {
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md, err := ic.Get(plugins.MetadataPlugin)
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if err != nil {
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return nil, err
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}
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ic.Meta.Platforms = append(ic.Meta.Platforms, platforms.DefaultSpec())
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cs := md.(*metadata.DB).ContentStore()
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return diffPlugin{
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Comparer: walking.NewWalkingDiff(cs),
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Applier: apply.NewFileSystemApplier(cs),
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}, nil
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},
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})
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}
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type diffPlugin struct {
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diff.Comparer
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diff.Applier
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}
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