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*(home): fix filters update on Windows 

✅ Closes: #1553
This commit is contained in:
Andrey Meshkov 2020-04-07 13:02:28 +03:00
parent 8f00e1ca5e
commit 1376d66acb
1 changed files with 12 additions and 10 deletions
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22
home/filter.go
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@ -508,14 +508,14 @@ func (f *Filtering) update(filter *filter) (bool, error) {
func (f *Filtering) updateIntl(filter *filter) (bool, error) {
log.Tracef("Downloading update for filter %d from %s", filter.ID, filter.URL)
tmpfile, err := ioutil.TempFile(filepath.Join(Context.getDataDir(), filterDir), "")
tmpFile, err := ioutil.TempFile(filepath.Join(Context.getDataDir(), filterDir), "")
if err != nil {
return false, err
}
defer func() {
if tmpfile != nil {
_ = tmpfile.Close()
_ = os.Remove(tmpfile.Name())
if tmpFile != nil {
_ = tmpFile.Close()
_ = os.Remove(tmpFile.Name())
}
}()
@ -564,7 +564,7 @@ func (f *Filtering) updateIntl(filter *filter) (bool, error) {
}
}
_, err2 := tmpfile.Write(buf[:n])
_, err2 := tmpFile.Write(buf[:n])
if err2 != nil {
return false, err2
}
@ -579,8 +579,8 @@ func (f *Filtering) updateIntl(filter *filter) (bool, error) {
}
// Extract filter name and count number of rules
_, _ = tmpfile.Seek(0, io.SeekStart)
rulesCount, checksum, filterName := f.parseFilterContents(tmpfile)
_, _ = tmpFile.Seek(0, io.SeekStart)
rulesCount, checksum, filterName := f.parseFilterContents(tmpFile)
// Check if the filter has been really changed
if filter.checksum == checksum {
log.Tracef("Filter #%d at URL %s hasn't changed, not updating it", filter.ID, filter.URL)
@ -596,12 +596,14 @@ func (f *Filtering) updateIntl(filter *filter) (bool, error) {
filter.checksum = checksum
filterFilePath := filter.Path()
log.Printf("Saving filter %d contents to: %s", filter.ID, filterFilePath)
err = os.Rename(tmpfile.Name(), filterFilePath)
// Closing the file before renaming it is necessary on Windows
_ = tmpFile.Close()
err = os.Rename(tmpFile.Name(), filterFilePath)
if err != nil {
return false, err
}
tmpfile.Close()
tmpfile = nil
tmpFile = nil
return true, nil
}