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all: Fix some linter errors (#5499)

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I'm working through linter complaints, these are some fixes. Broad
categories:

1) Ignore errors where we can ignore errors: add "_ = ..." construct.
you can argue that this is annoying noise, but apart from silencing the
linter it *does* serve the purpose of highlighting that an error is
being ignored. I think this is OK, because the linter highlighted some
error cases I wasn't aware of (starting CPU profiles, for example).

2) Untyped constants where we though we had set the type.

3) A real bug where we ineffectually assigned to a shadowed err.

4) Some dead code removed.

There'll be more of these, because not all packages are fixed, but the
diff was already large enough.
This commit is contained in:
Jakob Borg
2019-02-02 10:11:42 +01:00
committed by GitHub
parent 583172dc8d
commit 2111386ee4
19 changed files with 103 additions and 107 deletions
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28
lib/model/folder_sendrecv.go
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@@ -60,14 +60,13 @@ type copyBlocksState struct {
const retainBits = fs.ModeSetgid | fs.ModeSetuid | fs.ModeSticky
var (
activity = newDeviceActivity()
errNoDevice = errors.New("peers who had this file went away, or the file has changed while syncing. will retry later")
errSymlinksUnsupported = errors.New("symlinks not supported")
errDirHasToBeScanned = errors.New("directory contains unexpected files, scheduling scan")
errDirHasIgnored = errors.New("directory contains ignored files (see ignore documentation for (?d) prefix)")
errDirNotEmpty = errors.New("directory is not empty; files within are probably ignored on connected devices only")
errNotAvailable = errors.New("no connected device has the required version of this file")
errModified = errors.New("file modified but not rescanned; will try again later")
activity = newDeviceActivity()
errNoDevice = errors.New("peers who had this file went away, or the file has changed while syncing. will retry later")
errDirHasToBeScanned = errors.New("directory contains unexpected files, scheduling scan")
errDirHasIgnored = errors.New("directory contains ignored files (see ignore documentation for (?d) prefix)")
errDirNotEmpty = errors.New("directory is not empty; files within are probably ignored on connected devices only")
errNotAvailable = errors.New("no connected device has the required version of this file")
errModified = errors.New("file modified but not rescanned; will try again later")
)
const (
@@ -882,7 +881,8 @@ func (f *sendReceiveFolder) renameFile(cur, source, target protocol.FileInfo, ig
scanChan <- target.Name
err = errModified
default:
if fi, err := scanner.CreateFileInfo(stat, target.Name, f.fs); err == nil {
var fi protocol.FileInfo
if fi, err = scanner.CreateFileInfo(stat, target.Name, f.fs); err == nil {
if !fi.IsEquivalentOptional(curTarget, f.IgnorePerms, true, protocol.LocalAllFlags) {
// Target changed
scanChan <- target.Name
@@ -1016,7 +1016,7 @@ func (f *sendReceiveFolder) handleFile(file protocol.FileInfo, copyChan chan<- c
// Otherwise, discard the file ourselves in order for the
// sharedpuller not to panic when it fails to exclusively create a
// file which already exists
osutil.InWritableDir(f.fs.Remove, f.fs, tempName)
_ = osutil.InWritableDir(f.fs.Remove, f.fs, tempName)
}
} else {
// Copy the blocks, as we don't want to shuffle them on the FileInfo
@@ -1142,7 +1142,7 @@ func (f *sendReceiveFolder) shortcutFile(file, curFile protocol.FileInfo, dbUpda
}
}
f.fs.Chtimes(file.Name, file.ModTime(), file.ModTime()) // never fails
_ = f.fs.Chtimes(file.Name, file.ModTime(), file.ModTime()) // never fails
// This may have been a conflict. We should merge the version vectors so
// that our clock doesn't move backwards.
@@ -1536,7 +1536,7 @@ func (f *sendReceiveFolder) performFinish(ignores *ignore.Matcher, file, curFile
}
// Set the correct timestamp on the new file
f.fs.Chtimes(file.Name, file.ModTime(), file.ModTime()) // never fails
_ = f.fs.Chtimes(file.Name, file.ModTime(), file.ModTime()) // never fails
// Record the updated file in the index
dbUpdateChan <- dbUpdateJob{file, dbUpdateHandleFile}
@@ -1706,7 +1706,7 @@ func (f *sendReceiveFolder) pullScannerRoutine(scanChan <-chan string) {
l.Debugln(f, "scheduling scan after pulling for", path)
scanList = append(scanList, path)
}
f.Scan(scanList)
_ = f.Scan(scanList)
}
}
@@ -1858,7 +1858,7 @@ func (f *sendReceiveFolder) deleteDir(dir string, ignores *ignore.Matcher, scanC
}
for _, del := range toBeDeleted {
f.fs.RemoveAll(del)
_ = f.fs.RemoveAll(del)
}
err := osutil.InWritableDir(f.fs.Remove, f.fs, dir)