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Return original error when WaitLock times out #47

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Merged
gammazero merged 2 commits into from
May 6, 2025
Merged

Return original error when WaitLock times out #47

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9112e1a
Return original error when WaitLock times out
gammazero May 6, 2025
f5ff367
WaitLock logs when timeout or context canceled
gammazero May 6, 2025
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3 changes: 2 additions & 1 deletion fslock.go
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Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,8 @@ retry:
}
select {
case <-ctx.Done():
return nil, ctx.Err()
log.Warnf("did not acquire lock: %s", ctx.Err())
return nil, err
case <-ticker.C:
goto retry
}
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10 changes: 7 additions & 3 deletions fslock_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,6 @@ package fslock_test
import (
"bufio"
"context"
"errors"
"os"
"os/exec"
"path/filepath"
Expand Down Expand Up @@ -158,6 +157,7 @@ func TestWaitLock(t *testing.T) {
someFile = "somefile"
permErr = "permission denied"
heldErr = "lock is already held by us"
wantErr = "someone else has the lock"
)

confdir := t.TempDir()
Expand Down Expand Up @@ -259,7 +259,11 @@ func TestWaitLock(t *testing.T) {
if err == nil {
t.Fatalf("parent successfully acquired the lock")
}
if !errors.Is(err, context.DeadlineExceeded) {
t.Fatalf("did not get expected error: %s", context.DeadlineExceeded)
pe, ok = err.(*os.PathError)
if !ok {
t.Fatalf("wrong error type %T", err)
}
if got := pe.Error(); !strings.Contains(got, wantErr) {
t.Fatalf("error %q does not contain %q", got, wantErr)
}
}