/
samefile.go
47 lines (39 loc) · 1.01 KB
/
samefile.go
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package gourd
import (
"os"
)
type (
// SameFilterBucketer filters out files that appear to already be the same file on disk, as per `os.SameFile`.
// Unlike most other Bucketer implementations, this will only remove entries from Buckets rather than create
// new Buckets.
SameFilterBucketer struct{}
)
var (
_ Bucketer = SameFilterBucketer{}
)
func (bm SameFilterBucketer) Bucket(in Buckets) (Buckets, error) {
out := Buckets{}
for currentBucketName, bucket := range in {
if len(bucket) < 2 {
continue
}
filteredFiles := []File{}
for _, toTest := range bucket {
toTestFi := toTest.FileInfo
duplicate := false
for i, filteredFI := range filteredFiles {
duplicate = os.SameFile(toTestFi, filteredFI.FileInfo)
if duplicate {
filteredFiles[i].DuplicatePaths = append(filteredFiles[i].DuplicatePaths, toTest.Path)
break
}
}
if duplicate {
continue
}
filteredFiles = append(filteredFiles, toTest)
}
out[currentBucketName] = filteredFiles
}
return out, nil
}