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57 lines
1.9 KiB
Go
57 lines
1.9 KiB
Go
/*
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Copyright 2015 The Kubernetes 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 generator
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import (
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"path/filepath"
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"strings"
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"k8s.io/kubernetes/cmd/libs/go2idl/namer"
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"k8s.io/kubernetes/cmd/libs/go2idl/types"
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)
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func NewImportTracker(typesToAdd ...*types.Type) namer.ImportTracker {
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tracker := namer.NewDefaultImportTracker(types.Name{})
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tracker.IsInvalidType = func(*types.Type) bool { return false }
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tracker.LocalName = func(name types.Name) string { return golangTrackerLocalName(&tracker, name) }
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tracker.PrintImport = func(path, name string) string { return name + " \"" + path + "\"" }
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tracker.AddTypes(typesToAdd...)
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return &tracker
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}
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func golangTrackerLocalName(tracker namer.ImportTracker, t types.Name) string {
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path := t.Package
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dirs := strings.Split(path, string(filepath.Separator))
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for n := len(dirs) - 1; n >= 0; n-- {
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// TODO: bikeshed about whether it's more readable to have an
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// _, something else, or nothing between directory names.
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name := strings.Join(dirs[n:], "_")
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// These characters commonly appear in import paths for go
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// packages, but aren't legal go names. So we'll sanitize.
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name = strings.Replace(name, ".", "_", -1)
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name = strings.Replace(name, "-", "_", -1)
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if _, found := tracker.PathOf(name); found {
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// This name collides with some other package
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continue
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}
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return name
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}
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panic("can't find import for " + path)
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}
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