func (f FileLoggingCmdRunner) getTruncatedOutput(file boshsys.File, truncateLength int64) ([]byte, bool, error) {
isTruncated := false
stat, err := file.Stat()
if err != nil {
return nil, false, err
}
resultSize := truncateLength
offset := stat.Size() - truncateLength
if offset < 0 {
resultSize = stat.Size()
offset = 0
} else {
isTruncated = true
}
data := make([]byte, resultSize)
_, err = file.ReadAt(data, offset)
if err != nil {
return nil, false, err
}
// Do not truncate more than 25% of the data
data = f.truncateUntilToken(data, truncateLength/int64(4))
return data, isTruncated, nil
}
. "github.com/cloudfoundry/bosh-agent/internal/github.com/cloudfoundry/bosh-utils/logger/file"
boshlog "github.com/cloudfoundry/bosh-agent/internal/github.com/cloudfoundry/bosh-utils/logger"
boshsys "github.com/cloudfoundry/bosh-agent/internal/github.com/cloudfoundry/bosh-utils/system"
fakeboshsys "github.com/cloudfoundry/bosh-agent/internal/github.com/cloudfoundry/bosh-utils/system/fakes"
)
func expectedLogFormat(tag, msg string) string {
return fmt.Sprintf("\\[%s\\] [0-9]{4}/[0-9]{2}/[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2} %s\n", tag, msg)
}
var _ = Describe("NewFileLogger", func() {
var (
fs *fakeboshsys.FakeFileSystem
logFile boshsys.File
)
BeforeEach(func() {
fs = fakeboshsys.NewFakeFileSystem()
var err error
logFile, err = fs.TempFile("file-logger-test")
Expect(err).ToNot(HaveOccurred())
err = logFile.Close()
Expect(err).ToNot(HaveOccurred())
})
AfterEach(func() {
logFile.Close()
fs.RemoveAll(logFile.Name())
})