47 lines
873 B
Go
47 lines
873 B
Go
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package fileutil
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import (
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"log"
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"os"
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"path"
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"sort"
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"strings"
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"time"
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)
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func PurgeFile(dirname string, suffix string, max uint, interval time.Duration, stop <-chan struct{}) <-chan error {
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errC := make(chan error, 1)
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go func() {
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for {
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fnames, err := ReadDir(dirname)
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if err != nil {
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errC <- err
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return
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}
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newfnames := make([]string, 0)
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for _, fname := range fnames {
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if strings.HasSuffix(fname, suffix) {
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newfnames = append(newfnames, fname)
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}
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}
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sort.Strings(newfnames)
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for len(newfnames) > int(max) {
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f := path.Join(dirname, newfnames[0])
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err := os.Remove(f)
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if err != nil {
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errC <- err
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return
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}
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log.Printf("filePurge: successfully remvoed file %s", f)
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newfnames = newfnames[1:]
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}
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select {
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case <-time.After(interval):
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case <-stop:
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return
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}
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}
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}()
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return errC
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}
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