func main() {
logger := newLogger()
defer logger.HandlePanic("Main")
fileSystem := boshsys.NewOsFileSystemWithStrictTempRoot(logger)
workspaceRootPath := path.Join(os.Getenv("HOME"), ".bosh_init")
ui := biui.NewConsoleUI(logger)
timeService := clock.NewClock()
cmdFactory := bicmd.NewFactory(
fileSystem,
ui,
timeService,
logger,
boshuuid.NewGenerator(),
workspaceRootPath,
)
cmdRunner := bicmd.NewRunner(cmdFactory)
stage := biui.NewStage(ui, timeService, logger)
err := cmdRunner.Run(stage, os.Args[1:]...)
if err != nil {
displayHelpFunc := func() {
if strings.Contains(err.Error(), "Invalid usage") {
ui.ErrorLinef("")
helpErr := cmdRunner.Run(stage, append([]string{"help"}, os.Args[1:]...)...)
if helpErr != nil {
logger.Error(mainLogTag, "Couldn't print help: %s", helpErr.Error())
}
}
}
fail(err, ui, logger, displayHelpFunc)
}
}
func newSignalableFileLogger(logPath string, level boshlog.LogLevel) boshlog.Logger {
// Log file logger errors to the STDERR logger
logger := boshlog.NewLogger(boshlog.LevelError)
fileSystem := boshsys.NewOsFileSystem(logger)
// log file will be closed by process exit
// log file readable by all
logfileLogger, _, err := boshlogfile.New(level, logPath, boshlogfile.DefaultLogFileMode, fileSystem)
if err != nil {
logger := boshlog.NewLogger(boshlog.LevelError)
ui := biui.NewConsoleUI(logger)
fail(err, ui, logger, nil)
}
return newSignalableLogger(logfileLogger)
}
func newLogger() boshlog.Logger {
logLevelString := os.Getenv("BOSH_INIT_LOG_LEVEL")
level := boshlog.LevelNone
if logLevelString != "" {
var err error
level, err = boshlog.Levelify(logLevelString)
if err != nil {
err = bosherr.WrapError(err, "Invalid BOSH_INIT_LOG_LEVEL value")
logger := boshlog.NewLogger(boshlog.LevelError)
ui := biui.NewConsoleUI(logger)
fail(err, ui, logger, nil)
}
}
logPath := os.Getenv("BOSH_INIT_LOG_PATH")
if logPath != "" {
return newSignalableFileLogger(logPath, level)
}
return newSignalableLogger(boshlog.NewLogger(level))
}