Golang FlagSet.Int64Var方法代碼示例

func Flags(flagSet *flag.FlagSet, prefix string, includeParallelFlags bool) {
	prefix = processPrefix(prefix)
	flagSet.Int64Var(&(GinkgoConfig.RandomSeed), prefix+"seed", time.Now().Unix(), "The seed used to randomize the spec suite.")
	flagSet.BoolVar(&(GinkgoConfig.RandomizeAllSpecs), prefix+"randomizeAllSpecs", false, "If set, ginkgo will randomize all specs together.  By default, ginkgo only randomizes the top level Describe/Context groups.")
	flagSet.BoolVar(&(GinkgoConfig.SkipMeasurements), prefix+"skipMeasurements", false, "If set, ginkgo will skip any measurement specs.")
	flagSet.BoolVar(&(GinkgoConfig.FailOnPending), prefix+"failOnPending", false, "If set, ginkgo will mark the test suite as failed if any specs are pending.")
	flagSet.BoolVar(&(GinkgoConfig.FailFast), prefix+"failFast", false, "If set, ginkgo will stop running a test suite after a failure occurs.")
	flagSet.BoolVar(&(GinkgoConfig.DryRun), prefix+"dryRun", false, "If set, ginkgo will walk the test hierarchy without actually running anything.  Best paired with -v.")
	flagSet.StringVar(&(GinkgoConfig.FocusString), prefix+"focus", "", "If set, ginkgo will only run specs that match this regular expression.")
	flagSet.StringVar(&(GinkgoConfig.SkipString), prefix+"skip", "", "If set, ginkgo will only run specs that do not match this regular expression.")
	flagSet.BoolVar(&(GinkgoConfig.EmitSpecProgress), prefix+"progress", false, "If set, ginkgo will emit progress information as each spec runs to the GinkgoWriter.")

	if includeParallelFlags {
		flagSet.IntVar(&(GinkgoConfig.ParallelNode), prefix+"parallel.node", 1, "This worker node's (one-indexed) node number.  For running specs in parallel.")
		flagSet.IntVar(&(GinkgoConfig.ParallelTotal), prefix+"parallel.total", 1, "The total number of worker nodes.  For running specs in parallel.")
		flagSet.StringVar(&(GinkgoConfig.SyncHost), prefix+"parallel.synchost", "", "The address for the server that will synchronize the running nodes.")
		flagSet.StringVar(&(GinkgoConfig.StreamHost), prefix+"parallel.streamhost", "", "The address for the server that the running nodes should stream data to.")
	}

	flagSet.BoolVar(&(DefaultReporterConfig.NoColor), prefix+"noColor", false, "If set, suppress color output in default reporter.")
	flagSet.Float64Var(&(DefaultReporterConfig.SlowSpecThreshold), prefix+"slowSpecThreshold", 5.0, "(in seconds) Specs that take longer to run than this threshold are flagged as slow by the default reporter (default: 5 seconds).")
	flagSet.BoolVar(&(DefaultReporterConfig.NoisyPendings), prefix+"noisyPendings", true, "If set, default reporter will shout about pending tests.")
	flagSet.BoolVar(&(DefaultReporterConfig.Verbose), prefix+"v", false, "If set, default reporter print out all specs as they begin.")
	flagSet.BoolVar(&(DefaultReporterConfig.Succinct), prefix+"succinct", false, "If set, default reporter prints out a very succinct report")
	flagSet.BoolVar(&(DefaultReporterConfig.FullTrace), prefix+"trace", false, "If set, default reporter prints out the full stack trace when a failure occurs")
}

func (s *ResourceConfigSpecFlag) Register(f *flag.FlagSet) {
	opts := []struct {
		name  string
		units string
		*types.ResourceAllocationInfo
	}{
		{"CPU", "MHz", &s.CpuAllocation},
		{"Memory", "MB", &s.MemoryAllocation},
	}

	for _, opt := range opts {
		prefix := strings.ToLower(opt.name)[:3]
		shares := (*sharesInfo)(opt.Shares)

		expandableReservation := false
		if v := opt.ExpandableReservation; v != nil {
			expandableReservation = *v
		}

		// Initialize bool pointer
		opt.ExpandableReservation = types.NewBool(false)

		f.Int64Var(&opt.Limit, prefix+".limit", 0, opt.name+" limit in "+opt.units)
		f.Int64Var(&opt.Reservation, prefix+".reservation", 0, opt.name+" reservation in "+opt.units)
		f.BoolVar(opt.ExpandableReservation, prefix+".expandable", expandableReservation, opt.name+" expandable reservation")
		f.Var(shares, prefix+".shares", opt.name+" shares level or number")
	}
}

// ApplyWithError populates the flag given the flag set and environment
func (f Int64Flag) ApplyWithError(set *flag.FlagSet) error {
	if f.EnvVar != "" {
		for _, envVar := range strings.Split(f.EnvVar, ",") {
			envVar = strings.TrimSpace(envVar)
			if envVal, ok := syscall.Getenv(envVar); ok {
				envValInt, err := strconv.ParseInt(envVal, 0, 64)
				if err != nil {
					return fmt.Errorf("could not parse %s as int value for flag %s: %s", envVal, f.Name, err)
				}

				f.Value = envValInt
				break
			}
		}
	}

	eachName(f.Name, func(name string) {
		if f.Destination != nil {
			set.Int64Var(f.Destination, name, f.Value, f.Usage)
			return
		}
		set.Int64(name, f.Value, f.Usage)
	})

	return nil
}

func (cmd *change) Register(f *flag.FlagSet) {
	f.Int64Var(&cmd.MemoryMB, "m", 0, "Size in MB of memory")
	f.IntVar(&cmd.NumCPUs, "c", 0, "Number of CPUs")
	f.StringVar(&cmd.GuestId, "g", "", "Guest OS")
	f.StringVar(&cmd.Name, "name", "", "Display name")
	f.Var(&cmd.extraConfig, "e", "ExtraConfig. <key>=<value>")
}

func (cmd *tail) Register(ctx context.Context, f *flag.FlagSet) {
	cmd.DatastoreFlag, ctx = flags.NewDatastoreFlag(ctx)
	cmd.DatastoreFlag.Register(ctx, f)

	f.Int64Var(&cmd.count, "c", -1, "Output the last NUM bytes")
	f.IntVar(&cmd.lines, "n", 10, "Output the last NUM lines")
	f.BoolVar(&cmd.follow, "f", false, "Output appended data as the file grows")
}

func (cmd *boot) Register(f *flag.FlagSet) {
	f.Int64Var(&cmd.BootDelay, "delay", 0, "Delay in ms before starting the boot sequence")
	f.StringVar(&cmd.order, "order", "", "Boot device order")
	f.Int64Var(&cmd.BootRetryDelay, "retry-delay", 0, "Delay in ms before a boot retry")

	cmd.BootRetryEnabled = types.NewBool(false)
	f.BoolVar(cmd.BootRetryEnabled, "retry", false, "If true, retry boot after retry-delay")

	cmd.EnterBIOSSetup = types.NewBool(false)
	f.BoolVar(cmd.EnterBIOSSetup, "setup", false, "If true, enter BIOS setup on next boot")
}

func (cmd *change) Register(ctx context.Context, f *flag.FlagSet) {
	cmd.VirtualMachineFlag, ctx = flags.NewVirtualMachineFlag(ctx)
	cmd.VirtualMachineFlag.Register(ctx, f)

	f.Int64Var(&cmd.MemoryMB, "m", 0, "Size in MB of memory")
	f.Var(flags.NewInt32(&cmd.NumCPUs), "c", "Number of CPUs")
	f.StringVar(&cmd.GuestId, "g", "", "Guest OS")
	f.StringVar(&cmd.Name, "name", "", "Display name")
	f.Var(&cmd.extraConfig, "e", "ExtraConfig. <key>=<value>")

	f.Var(flags.NewOptionalBool(&cmd.NestedHVEnabled), "nested-hv-enabled", "Enable nested hardware-assisted virtualization")
}

// registerFlags defines all cfssl command flags and associates their values with variables.
func registerFlags(c *Config, f *flag.FlagSet) {
	f.StringVar(&c.Hostname, "hostname", "", "Hostname for the cert, could be a comma-separated hostname list")
	f.StringVar(&c.CertFile, "cert", "", "Client certificate that contains the public key")
	f.StringVar(&c.CSRFile, "csr", "", "Certificate signature request file for new public key")
	f.StringVar(&c.CAFile, "ca", "", "CA used to sign the new certificate")
	f.StringVar(&c.CAKeyFile, "ca-key", "", "CA private key")
	f.StringVar(&c.TLSCertFile, "tls-cert", "", "Other endpoint CA to set up TLS protocol")
	f.StringVar(&c.TLSKeyFile, "tls-key", "", "Other endpoint CA private key")
	f.StringVar(&c.KeyFile, "key", "", "private key for the certificate")
	f.StringVar(&c.IntermediatesFile, "intermediates", "", "intermediate certs")
	f.StringVar(&c.CABundleFile, "ca-bundle", "", "path to root certificate store")
	f.StringVar(&c.IntBundleFile, "int-bundle", "", "path to intermediate certificate store")
	f.StringVar(&c.Address, "address", "127.0.0.1", "Address to bind")
	f.IntVar(&c.Port, "port", 8888, "Port to bind")
	f.StringVar(&c.ConfigFile, "config", "", "path to configuration file")
	f.StringVar(&c.Profile, "profile", "", "signing profile to use")
	f.BoolVar(&c.IsCA, "initca", false, "initialise new CA")
	f.BoolVar(&c.RenewCA, "renewca", false, "re-generate a CA certificate from existing CA certificate/key")
	f.StringVar(&c.IntDir, "int-dir", "", "specify intermediates directory")
	f.StringVar(&c.Flavor, "flavor", "ubiquitous", "Bundle Flavor: ubiquitous, optimal and force.")
	f.StringVar(&c.Metadata, "metadata", "", "Metadata file for root certificate presence. The content of the file is a json dictionary (k,v): each key k is SHA-1 digest of a root certificate while value v is a list of key store filenames.")
	f.StringVar(&c.Domain, "domain", "", "remote server domain name")
	f.StringVar(&c.IP, "ip", "", "remote server ip")
	f.StringVar(&c.Remote, "remote", "", "remote CFSSL server")
	f.StringVar(&c.Label, "label", "", "key label to use in remote CFSSL server")
	f.StringVar(&c.AuthKey, "authkey", "", "key to authenticate requests to remote CFSSL server")
	f.StringVar(&c.ResponderFile, "responder", "", "Certificate for OCSP responder")
	f.StringVar(&c.ResponderKeyFile, "responder-key", "", "private key for OCSP responder certificate")
	f.StringVar(&c.Status, "status", "good", "Status of the certificate: good, revoked, unknown")
	f.IntVar(&c.Reason, "reason", 0, "Reason code for revocation")
	f.StringVar(&c.RevokedAt, "revoked-at", "now", "Date of revocation (YYYY-MM-DD)")
	f.Int64Var(&c.Interval, "interval", int64(4*helpers.OneDay), "Interval between OCSP updates, in seconds (default: 4 days)")
	f.BoolVar(&c.List, "list", false, "list possible scanners")
	f.StringVar(&c.Family, "family", "", "scanner family regular expression")
	f.StringVar(&c.Scanner, "scanner", "", "scanner regular expression")
	f.DurationVar(&c.Timeout, "timeout", 5*time.Minute, "duration (ns, us, ms, s, m, h) to scan each host before timing out")
	f.StringVar(&c.Responses, "responses", "", "file to load OCSP responses from")
	f.StringVar(&c.Path, "path", "/", "Path on which the server will listen")
	f.StringVar(&c.Password, "password", "0", "Password for accessing PKCS #12 data passed to bundler")
	f.StringVar(&c.Usage, "usage", "", "usage of private key")
	f.StringVar(&c.PGPPrivate, "pgp-private", "", "file to load a PGP Private key decryption.")

	if pkcs11.Enabled {
		f.StringVar(&c.Module, "pkcs11-module", "", "PKCS #11 module")
		f.StringVar(&c.Token, "pkcs11-token", "", "PKCS #11 token")
		f.StringVar(&c.PIN, "pkcs11-pin", os.Getenv("USER_PIN"), "PKCS #11 user PIN")
		f.StringVar(&c.PKCS11Label, "pkcs11-label", "", "PKCS #11 label")
	}
}

// registerFlagStruct parse struct field, and register with flag set
func registerFlagStruct(i interface{}, fs *flag.FlagSet) error {
	if fs.Parsed() {
		return ErrFlagParsed
	}

	sf := structFields(i)
	for _, fd := range sf {
		field := fd.field

		flagName := fd.tag.name
		flagUsage := fd.tag.usage
		fieldPtr := unsafe.Pointer(fd.value.UnsafeAddr())

		switch field.Type.Kind() {
		case reflect.Int:
			fs.IntVar((*int)(fieldPtr), flagName, fd.tag.intValue(), flagUsage)
		case reflect.Int64:
			fs.Int64Var((*int64)(fieldPtr), flagName, fd.tag.int64Value(), flagUsage)
		case reflect.Uint:
			fs.UintVar((*uint)(fieldPtr), flagName, fd.tag.uintValue(), flagUsage)
		case reflect.Uint64:
			fs.Uint64Var((*uint64)(fieldPtr), flagName, fd.tag.uint64Value(), flagUsage)
		case reflect.String:
			fs.StringVar((*string)(fieldPtr), flagName, fd.tag.stringValue(), flagUsage)
		case reflect.Bool:
			fs.BoolVar((*bool)(fieldPtr), flagName, fd.tag.boolValue(), flagUsage)
		case reflect.Float64:
			fs.Float64Var((*float64)(fieldPtr), flagName, fd.tag.float64Value(), flagUsage)
		default:
			if !reflect.PtrTo(field.Type).Implements(flagValueType) {
				return ErrUnsupportType
			}

			fieldValue := reflect.NewAt(field.Type, fieldPtr)
			switch value := fieldValue.Interface().(type) {
			case flag.Value:
				fs.Var(value, flagName, flagUsage)
			}
		}
	}

	return nil
}

func (s *ResourceConfigSpecFlag) Register(ctx context.Context, f *flag.FlagSet) {
	opts := []struct {
		name  string
		units string
		types.BaseResourceAllocationInfo
	}{
		{"CPU", "MHz", s.CpuAllocation},
		{"Memory", "MB", s.MemoryAllocation},
	}

	for _, opt := range opts {
		prefix := strings.ToLower(opt.name)[:3]
		ra := opt.GetResourceAllocationInfo()
		shares := (*sharesInfo)(ra.Shares)

		f.Int64Var(&ra.Limit, prefix+".limit", 0, opt.name+" limit in "+opt.units)
		f.Int64Var(&ra.Reservation, prefix+".reservation", 0, opt.name+" reservation in "+opt.units)
		f.Var(flags.NewOptionalBool(&ra.ExpandableReservation), prefix+".expandable", opt.name+" expandable reservation")
		f.Var(shares, prefix+".shares", opt.name+" shares level or number")
	}
}

// Apply populates the flag given the flag set and environment
func (f Int64Flag) Apply(set *flag.FlagSet) {
	if f.EnvVar != "" {
		for _, envVar := range strings.Split(f.EnvVar, ",") {
			envVar = strings.TrimSpace(envVar)
			if envVal := os.Getenv(envVar); envVal != "" {
				envValInt, err := strconv.ParseInt(envVal, 0, 64)
				if err == nil {
					f.Value = envValInt
					break
				}
			}
		}
	}

	eachName(f.Name, func(name string) {
		if f.Destination != nil {
			set.Int64Var(f.Destination, name, f.Value, f.Usage)
			return
		}
		set.Int64(name, f.Value, f.Usage)
	})
}

func addFieldFlag(field reflect.StructField, value reflect.Value, fs *flag.FlagSet) {
	name, usage := getFieldNameUsage(field)
	ptr := unsafe.Pointer(value.UnsafeAddr())
	switch field.Type.Kind() {
	case reflect.Bool:
		fs.BoolVar((*bool)(ptr), name, *(*bool)(ptr), usage)
	case reflect.Float64:
		fs.Float64Var((*float64)(ptr), name, *(*float64)(ptr), usage)
	case reflect.Int64:
		fs.Int64Var((*int64)(ptr), name, *(*int64)(ptr), usage)
	case reflect.Int:
		fs.IntVar((*int)(ptr), name, *(*int)(ptr), usage)
	case reflect.String:
		fs.StringVar((*string)(ptr), name, *(*string)(ptr), usage)
	case reflect.Uint64:
		fs.Uint64Var((*uint64)(ptr), name, *(*uint64)(ptr), usage)
	case reflect.Uint:
		fs.UintVar((*uint)(ptr), name, *(*uint)(ptr), usage)
	default:
		panic(fmt.Sprintf("unsupported type: %v", field.Type))
	}
}

// registerFlags defines all cfssl command flags and associates their values with variables.
func registerFlags(c *Config, f *flag.FlagSet) {
	f.StringVar(&c.Hostname, "hostname", "", "Hostname for the cert, could be a comma-separated hostname list")
	f.StringVar(&c.CertFile, "cert", "", "Client certificate that contains the public key")
	f.StringVar(&c.CSRFile, "csr", "", "Certificate signature request file for new public key")
	f.StringVar(&c.CAFile, "ca", "ca.pem", "CA used to sign the new certificate")
	f.StringVar(&c.CAKeyFile, "ca-key", "ca-key.pem", "CA private key")
	f.StringVar(&c.KeyFile, "key", "", "private key for the certificate")
	f.StringVar(&c.IntermediatesFile, "intermediates", "", "intermediate certs")
	f.StringVar(&c.CABundleFile, "ca-bundle", "/etc/cfssl/ca-bundle.crt", "Bundle to be used for root certificates pool")
	f.StringVar(&c.IntBundleFile, "int-bundle", "/etc/cfssl/int-bundle.crt", "Bundle to be used for intermediate certificates pool")
	f.StringVar(&c.Address, "address", "127.0.0.1", "Address to bind")
	f.IntVar(&c.Port, "port", 8888, "Port to bind")
	f.StringVar(&c.ConfigFile, "config", "", "path to configuration file")
	f.StringVar(&c.Profile, "profile", "", "signing profile to use")
	f.BoolVar(&c.IsCA, "initca", false, "initialise new CA")
	f.StringVar(&c.IntDir, "int-dir", "/etc/cfssl/intermediates", "specify intermediates directory")
	f.StringVar(&c.Flavor, "flavor", "ubiquitous", "Bundle Flavor: ubiquitous, optimal and force.")
	f.StringVar(&c.Metadata, "metadata", "/etc/cfssl/ca-bundle.crt.metadata", "Metadata file for root certificate presence. The content of the file is a json dictionary (k,v): each key k is SHA-1 digest of a root certificate while value v is a list of key store filenames.")
	f.StringVar(&c.Domain, "domain", "", "remote server domain name")
	f.StringVar(&c.IP, "ip", "", "remote server ip")
	f.StringVar(&c.Remote, "remote", "", "remote CFSSL server")
	f.StringVar(&c.Label, "label", "", "key label to use in remote CFSSL server")
	f.StringVar(&c.AuthKey, "authkey", "", "key to authenticate requests to remote CFSSL server")
	f.StringVar(&c.ResponderFile, "responder", "", "Certificate for OCSP responder")
	f.StringVar(&c.Status, "status", "good", "Status of the certificate: good, revoked, unknown")
	f.IntVar(&c.Reason, "reason", 0, "Reason code for revocation")
	f.StringVar(&c.RevokedAt, "revoked-at", "now", "Date of revocation (YYYY-MM-DD)")
	f.Int64Var(&c.Interval, "interval", int64(4*helpers.OneDay), "Interval between OCSP updates, in seconds (default: 4 days)")
	f.BoolVar(&c.List, "list", false, "list possible scanners")
	f.StringVar(&c.Family, "family", "", "scanner family regular expression")
	f.StringVar(&c.Scanner, "scanner", "", "scanner regular expression")

	if pkcs11.Enabled {
		f.StringVar(&c.Module, "pkcs11-module", "", "PKCS #11 module")
		f.StringVar(&c.Token, "pkcs11-token", "", "PKCS #11 token")
		f.StringVar(&c.PIN, "pkcs11-pin", "", "PKCS #11 user PIN")
		f.StringVar(&c.PKCS11Label, "pkcs11-label", "", "PKCS #11 label")
	}
}

func (flag *FileAttrFlag) Register(ctx context.Context, f *flag.FlagSet) {
	f.IntVar(&flag.OwnerId, "uid", 0, "User ID")
	f.IntVar(&flag.GroupId, "gid", 0, "Group ID")
	f.Int64Var(&flag.Permissions, "perm", 0, "File permissions")
}

// Add the flags accepted by run to the supplied flag set, returning the
// variables into which the flags will parse.
func populateFlagSet(fs *flag.FlagSet) (flags *flagStorage) {
	flags = new(flagStorage)

	flags.MountOptions = make(map[string]string)
	fs.Var(
		mountpkg.OptionValue(flags.MountOptions),
		"o",
		"Additional system-specific mount options. Be careful!")

	fs.Int64Var(
		&flags.Uid,
		"uid",
		-1,
		"If non-negative, the UID that owns all inodes. The default is the UID of "+
			"the gcsfuse process.")

	fs.Int64Var(
		&flags.Gid,
		"gid",
		-1,
		"If non-negative, the GID that owns all inodes. The default is the GID of "+
			"the gcsfuse process.")

	fs.UintVar(
		&flags.FileMode,
		"file-mode",
		0644,
		"Permissions bits for files. Default is 0644.")

	fs.UintVar(
		&flags.DirMode,
		"dir-mode",
		0755,
		"Permissions bits for directories. Default is 0755.")

	fs.StringVar(
		&flags.TempDir,
		"temp-dir", "",
		"The temporary directory in which to store local copies of GCS objects. "+
			"If empty, the system default (probably /tmp) will be used.")

	fs.Int64Var(
		&flags.TempDirLimit,
		"temp-dir-bytes", 1<<31,
		"A desired limit on the number of bytes used in --temp-dir. May be "+
			"exceeded for dirty files that have not been flushed or closed.")

	fs.Uint64Var(
		&flags.GCSChunkSize,
		"gcs-chunk-size", 1<<24,
		"If set to a non-zero value N, split up GCS objects into multiple "+
			"chunks of size at most N when reading, and do not read or cache "+
			"unnecessary chunks.")

	fs.BoolVar(
		&flags.ImplicitDirs,
		"implicit-dirs",
		false,
		"Implicitly define directories based on their content. See "+
			"docs/semantics.md.")

	fs.DurationVar(
		&flags.StatCacheTTL,
		"stat-cache-ttl",
		time.Minute,
		"How long to cache StatObject results from GCS.")

	fs.DurationVar(
		&flags.TypeCacheTTL,
		"type-cache-ttl",
		time.Minute,
		"How long to cache name -> file/dir type mappings in directory inodes.")

	fs.Float64Var(
		&flags.OpRateLimitHz,
		"limit-ops-per-sec",
		5.0,
		"If positive, a limit on the rate at which we send requests to GCS, "+
			"measured over a 30-second window.")

	fs.Float64Var(
		&flags.EgressBandwidthLimitBytesPerSecond,
		"limit-bytes-per-sec",
		-1,
		"If positive, a limit on the GCS -> gcsfuse bandwidth for reading "+
			"objects, measured over a 30-second window.")

	return
}