/
main.go
205 lines (194 loc) · 4.79 KB
/
main.go
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package cmd
import (
"fmt"
"io/ioutil"
"os"
"strings"
"time"
"github.com/araddon/dateparse"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"github.com/x-mod/build"
"github.com/x-mod/errors"
)
type cmpCode struct {
val int32
}
func (cc *cmpCode) Value() int32 {
if cc.val != 0 {
return 1
}
return cc.val
}
func (cc *cmpCode) String() string {
if cc.val == 1 {
return "True"
}
return "False"
}
func exitForErr(err error) {
if err != nil {
os.Stdout.Write([]byte(err.Error() + "\n"))
os.Exit(int(errors.ValueFrom(err)))
}
}
func printFormats() {
fmt.Println(`
ANSIC = "Mon Jan _2 15:04:05 2006"
UnixDate = "Mon Jan _2 15:04:05 MST 2006"
RubyDate = "Mon Jan 02 15:04:05 -0700 2006"
RFC822 = "02 Jan 06 15:04 MST"
RFC822Z = "02 Jan 06 15:04 -0700" RFC822 with numeric zone
RFC850 = "Monday, 02-Jan-06 15:04:05 MST"
RFC1123 = "Mon, 02 Jan 2006 15:04:05 MST"
RFC1123Z = "Mon, 02 Jan 2006 15:04:05 -0700" RFC1123 with numeric zone
RFC3339 = "2006-01-02T15:04:05Z07:00"
RFC3339Nano = "2006-01-02T15:04:05.999999999Z07:00"
Kitchen = "3:04PM"
Stamp = "Jan _2 15:04:05"
StampMilli = "Jan _2 15:04:05.000"
StampMicro = "Jan _2 15:04:05.000000"
StampNano = "Jan _2 15:04:05.000000000"
TimestampSec = "time.Unix()"
TimestampMilli = "time.UnixNano()/1000000"
TimestampMicro = "time.UnixNano()/1000"
TimestampNano = "time.UnixNano()"
`)
}
func Main(cmd *cobra.Command, args []string) error {
//version
if viper.GetBool("version") {
fmt.Println(build.String())
return nil
}
//formats
if viper.GetBool("Formats") {
printFormats()
return nil
}
//pipe stdin
if len(args) == 0 {
info, err := os.Stdin.Stat()
if err != nil {
return errors.Annotate(err, "stdin stat failed")
}
//OR ModeCharDevice & Size check
// if (info.Mode()&os.ModeCharDevice) == os.ModeCharDevice &&
// info.Size() > 0 {
if (info.Mode() & os.ModeNamedPipe) == os.ModeNamedPipe {
d, err := ioutil.ReadAll(os.Stdin)
if err != nil {
return errors.Annotate(err, "stdin read failed")
}
args = append(args, string(d))
}
}
//timezone
if len(viper.GetString("timezone")) > 0 {
loc, err := time.LoadLocation(viper.GetString("timezone"))
if err != nil {
return err
}
time.Local = loc
}
//times
times := make([]time.Time, 0, len(args)+1)
if len(args) == 0 {
t := time.Now()
t = t.Add(viper.GetDuration("add"))
t = t.Add(-viper.GetDuration("sub"))
times = append(times, t)
}
for _, arg := range args {
t, err := dateparse.ParseIn(strings.TrimSpace(arg), time.Local)
if err != nil {
return errors.Annotate(err, "parse strict")
}
t = t.Add(viper.GetDuration("add"))
t = t.Add(-viper.GetDuration("sub"))
times = append(times, t)
}
//before compare
if len(viper.GetString("before")) > 0 {
t, err := dateparse.ParseIn(viper.GetString("before"), time.Local)
//t, err := dateparse.ParseStrict(viper.GetString("before"))
if err != nil {
return errors.Annotate(err, "parse strict")
}
if t.After(times[0]) {
return errors.CodeError(&cmpCode{val: 1})
}
return errors.CodeError(&cmpCode{})
}
//after compare
if len(viper.GetString("after")) > 0 {
t, err := dateparse.ParseIn(viper.GetString("after"), time.Local)
if err != nil {
return errors.Annotate(err, "parse strict")
}
if t.Before(times[0]) {
return errors.CodeError(&cmpCode{val: 1})
}
return errors.CodeError(&cmpCode{})
}
//convert
for _, tm := range times {
if len(viper.GetString("format")) > 0 {
dest := ""
switch viper.GetString("format") {
case "ANSIC":
dest = time.ANSIC
case "UnixDate":
dest = time.UnixDate
case "RubyDate":
dest = time.RubyDate
case "RFC822":
dest = time.RFC822
case "RFC822Z":
dest = time.RFC822Z
case "RFC850":
dest = time.RFC850
case "RFC1123":
dest = time.RFC1123
case "RFC1123Z":
dest = time.RFC1123Z
case "RFC3339":
dest = time.RFC3339
case "RFC3339Nano":
dest = time.RFC3339Nano
case "Kitchen":
dest = time.Kitchen
case "Stamp":
dest = time.Stamp
case "StampMilli":
dest = time.StampMilli
case "StampMicro":
dest = time.StampMicro
case "StampNano":
dest = time.StampNano
case "TimestampSec":
fmt.Fprintln(os.Stdout, tm.Unix())
continue
case "TimestampMilli":
fmt.Fprintln(os.Stdout, tm.UnixNano()/1000000)
continue
case "TimestampMicro":
fmt.Fprintln(os.Stdout, tm.UnixNano()/1000)
continue
case "TimestampNano":
fmt.Fprintln(os.Stdout, tm.UnixNano())
continue
default:
d, err := dateparse.ParseFormat(viper.GetString("format"))
if err != nil {
return errors.Annotate(err, "parse format")
}
dest = d
}
fmt.Fprintln(os.Stdout, tm.Format(dest))
continue
}
fmt.Fprintln(os.Stdout, tm.UnixNano()/1000000)
}
return nil
}