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transitive_map.go
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/
transitive_map.go
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// Copyright 2024 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package internal
import "path/filepath"
// BuildTransitiveMaps fills the transitive map with aggregated numbers from subdirs.
func BuildTransitiveMaps(m map[string]int) map[string]int {
transitive := map[string]int{}
for p, inodes := range m {
d := p
for d != "." && d != "/" && d != "c:\\" && d != "c:/" {
d = filepath.Dir(d)
transitive[d] += inodes
}
}
return transitive
}