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lib/scanner: Do not drop all not-exist-errors and debug logging (#7675)

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Simon Frei 2021-05-15 11:51:35 +02:00 committed by GitHub
parent 0d054f9b64
commit 93a02c677e
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 22 additions and 19 deletions
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41
lib/scanner/walk.go
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@ -109,7 +109,7 @@ type walker struct {
// Walk returns the list of files found in the local folder by scanning the
// file system. Files are blockwise hashed.
func (w *walker) walk(ctx context.Context) chan ScanResult {
l.Debugln("Walk", w.Subs, w.Matcher)
l.Debugln(w, "Walk", w.Subs, w.Matcher)
toHashChan := make(chan protocol.FileInfo)
finishedChan := make(chan ScanResult)
@ -162,13 +162,13 @@ func (w *walker) walk(ctx context.Context) chan ScanResult {
for {
select {
case <-done:
l.Debugln("Walk progress done", w.Folder, w.Subs, w.Matcher)
l.Debugln(w, "Walk progress done", w.Folder, w.Subs, w.Matcher)
ticker.Stop()
return
case <-ticker.C:
current := progress.Total()
rate := progress.Rate()
l.Debugf("Walk %s %s current progress %d/%d at %.01f MiB/s (%d%%)", w.Folder, w.Subs, current, total, rate/1024/1024, current*100/total)
l.Debugf("%v: Walk %s %s current progress %d/%d at %.01f MiB/s (%d%%)", w, w.Folder, w.Subs, current, total, rate/1024/1024, current*100/total)
w.EventLogger.Log(events.FolderScanProgress, map[string]interface{}{
"folder": w.Folder,
"current": current,
@ -184,7 +184,7 @@ func (w *walker) walk(ctx context.Context) chan ScanResult {
loop:
for _, file := range filesToHash {
l.Debugln("real to hash:", file.Name)
l.Debugln(w, "real to hash:", file.Name)
select {
case realToHashChan <- file:
case <-ctx.Done():
@ -198,7 +198,7 @@ func (w *walker) walk(ctx context.Context) chan ScanResult {
}
func (w *walker) walkWithoutHashing(ctx context.Context) chan ScanResult {
l.Debugln("Walk without hashing", w.Subs, w.Matcher)
l.Debugln(w, "Walk without hashing", w.Subs, w.Matcher)
toHashChan := make(chan protocol.FileInfo)
finishedChan := make(chan ScanResult)
@ -224,7 +224,7 @@ func (w *walker) scan(ctx context.Context, toHashChan chan<- protocol.FileInfo,
} else {
for _, sub := range w.Subs {
if err := osutil.TraversesSymlink(w.Filesystem, filepath.Dir(sub)); err != nil {
l.Debugf("Skip walking %v as it is below a symlink", sub)
l.Debugf("%v: Skip walking %v as it is below a symlink", w, sub)
continue
}
w.Filesystem.Walk(sub, hashFiles)
@ -258,21 +258,21 @@ func (w *walker) walkAndHashFiles(ctx context.Context, toHashChan chan<- protoco
}
if fs.IsTemporary(path) {
l.Debugln("temporary:", path, "err:", err)
l.Debugln(w, "temporary:", path, "err:", err)
if err == nil && info.IsRegular() && info.ModTime().Add(w.TempLifetime).Before(now) {
w.Filesystem.Remove(path)
l.Debugln("removing temporary:", path, info.ModTime())
l.Debugln(w, "removing temporary:", path, info.ModTime())
}
return nil
}
if fs.IsInternal(path) {
l.Debugln("ignored (internal):", path)
l.Debugln(w, "ignored (internal):", path)
return skip
}
if w.Matcher.Match(path).IsIgnored() {
l.Debugln("ignored (patterns):", path)
l.Debugln(w, "ignored (patterns):", path)
// Only descend if matcher says so and the current file is not a symlink.
if err != nil || w.Matcher.SkipIgnoredDirs() || info.IsSymlink() {
return skip
@ -285,7 +285,11 @@ func (w *walker) walkAndHashFiles(ctx context.Context, toHashChan chan<- protoco
}
if err != nil {
handleError(ctx, "scan", path, err, finishedChan)
// No need reporting errors for files that don't exist (e.g. scan
// due to filesystem watcher)
if !fs.IsNotExist(err) {
handleError(ctx, "scan", path, err, finishedChan)
}
return skip
}
@ -384,6 +388,7 @@ func (w *walker) walkRegular(ctx context.Context, relPath string, info fs.FileIn
if hasCurFile {
if curFile.IsEquivalentOptional(f, w.ModTimeWindow, w.IgnorePerms, true, w.LocalFlags) {
l.Debugln(w, "unchanged:", curFile, info.ModTime().Unix(), info.Mode()&fs.ModePerm)
return nil
}
if curFile.ShouldConflict() {
@ -394,10 +399,10 @@ func (w *walker) walkRegular(ctx context.Context, relPath string, info fs.FileIn
// conflict.
f.Version = f.Version.DropOthers(w.ShortID)
}
l.Debugln("rescan:", curFile, info.ModTime().Unix(), info.Mode()&fs.ModePerm)
l.Debugln(w, "rescan:", curFile, info.ModTime().Unix(), info.Mode()&fs.ModePerm)
}
l.Debugln("to hash:", relPath, f)
l.Debugln(w, "to hash:", relPath, f)
select {
case toHashChan <- f:
@ -417,6 +422,7 @@ func (w *walker) walkDir(ctx context.Context, relPath string, info fs.FileInfo,
if hasCurFile {
if curFile.IsEquivalentOptional(f, w.ModTimeWindow, w.IgnorePerms, true, w.LocalFlags) {
l.Debugln(w, "unchanged:", curFile, info.ModTime().Unix(), info.Mode()&fs.ModePerm)
return nil
}
if curFile.ShouldConflict() {
@ -429,7 +435,7 @@ func (w *walker) walkDir(ctx context.Context, relPath string, info fs.FileInfo,
}
}
l.Debugln("dir:", relPath, f)
l.Debugln(w, "dir:", relPath, f)
select {
case finishedChan <- ScanResult{File: f}:
@ -461,6 +467,7 @@ func (w *walker) walkSymlink(ctx context.Context, relPath string, info fs.FileIn
if hasCurFile {
if curFile.IsEquivalentOptional(f, w.ModTimeWindow, w.IgnorePerms, true, w.LocalFlags) {
l.Debugln(w, "unchanged:", curFile, info.ModTime().Unix(), info.Mode()&fs.ModePerm)
return nil
}
if curFile.ShouldConflict() {
@ -473,7 +480,7 @@ func (w *walker) walkSymlink(ctx context.Context, relPath string, info fs.FileIn
}
}
l.Debugln("symlink changedb:", relPath, f)
l.Debugln(w, "symlink changedb:", relPath, f)
select {
case finishedChan <- ScanResult{File: f}:
@ -557,10 +564,6 @@ func (w *walker) updateFileInfo(file, curFile protocol.FileInfo) protocol.FileIn
}
func handleError(ctx context.Context, context, path string, err error, finishedChan chan<- ScanResult) {
// Ignore missing items, as deletions are not handled by the scanner.
if fs.IsNotExist(err) {
return
}
select {
case finishedChan <- ScanResult{
Err: fmt.Errorf("%s: %w", context, err),