Added -datetime option to create up/down files with version in yyyymm…

…ddhhmmss format.

cli/commands.go

@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 	"strconv"
 	"strings"
+	"time"
 )
 
 func nextSeq(matches []string, dir string, seqDigits int) (string, error) {
@@ -48,8 +49,11 @@ func nextSeq(matches []string, dir string, seqDigits int) (string, error) {
 	return nextSeqStr, nil
 }
 
-func createCmd(dir string, timestamp int64, name string, ext string, seq bool, seqDigits int) {
+func createCmd(dir string, timestamp int64, name string, ext string, seq bool, seqDigits int, datetime bool) {
 	var base string
+	if seq && datetime {
+		log.fatalErr(errors.New("seq and datetime options are mutually exclusive"))
+	}
 	if seq {
 		if seqDigits <= 0 {
 			log.fatalErr(errors.New("Digits must be positive"))
@@ -63,6 +67,12 @@ func createCmd(dir string, timestamp int64, name string, ext string, seq bool, s
 			log.fatalErr(err)
 		}
 		base = fmt.Sprintf("%v%v_%v.", dir, nextSeqStr, name)
+	} else if datetime {
+		now := time.Now();
+		year, month, day := now.Date();
+		var m = int(month);
+		hr, min, sec := now.Clock();
+		base = fmt.Sprintf("%04d%02d%02d%02d%02d%02d_%v.",year,m,day, hr, min, sec, name)
 	} else {
 		base = fmt.Sprintf("%v%v_%v.", dir, timestamp, name)
 	}

cli/main.go

@@ -42,9 +42,10 @@ Options:
   -help            Print usage
 
 Commands:
-  create [-ext E] [-dir D] [-seq] [-digits N] NAME
+  create [-ext E] [-dir D] [-seq] [-digits N] [-datetime] NAME
 			   Create a set of timestamped up/down migrations titled NAME, in directory D with extension E.
 			   Use -seq option to generate sequential up/down migrations with N digits.
+			   Use -datetime option to generate migrations where the version is yyyymmddhhmmss.
   goto V       Migrate to version V
   up [N]       Apply all or N up migrations
   down [N]     Apply all or N down migrations
@@ -109,12 +110,14 @@ Commands:
 		args := flag.Args()[1:]
 		seq := false
 		seqDigits := 6
+		datetime := false
 
 		createFlagSet := flag.NewFlagSet("create", flag.ExitOnError)
 		extPtr := createFlagSet.String("ext", "", "File extension")
 		dirPtr := createFlagSet.String("dir", "", "Directory to place file in (default: current working directory)")
 		createFlagSet.BoolVar(&seq, "seq", seq, "Use sequential numbers instead of timestamps (default: false)")
 		createFlagSet.IntVar(&seqDigits, "digits", seqDigits, "The number of digits to use in sequences (default: 6)")
+		createFlagSet.BoolVar(&datetime, "datetime", datetime, "Generate migrations where the version is yyyymmddhhmmss")
 		createFlagSet.Parse(args)
 
 		if createFlagSet.NArg() == 0 {
@@ -131,7 +134,7 @@ Commands:
 
 		timestamp := startTime.Unix()
 
-		createCmd(*dirPtr, timestamp, name, *extPtr, seq, seqDigits)
+		createCmd(*dirPtr, timestamp, name, *extPtr, seq, seqDigits, datetime)
 
 	case "goto":
 		if migraterErr != nil {