gorm-goose/cmd/gorm-goose/main.go
2016-09-09 16:50:20 +03:00

80 lines
1.5 KiB
Go

package main
import (
"flag"
"fmt"
"os"
"strings"
"text/template"
goose "github.com/Altoros/gorm-goose/lib/gorm-goose"
)
// global options. available to any subcommands.
var flagPath = flag.String("path", "db", "folder containing db info")
var flagEnv = flag.String("env", "development", "which DB environment to use")
var flagPgSchema = flag.String("pgschema", "", "which postgres-schema to migrate (default = none)")
// helper to create a DBConf from the given flags
func dbConfFromFlags() (dbconf *goose.DBConf, err error) {
return goose.NewDBConf(*flagPath, *flagEnv, *flagPgSchema)
}
var commands = []*Command{
upCmd,
downCmd,
redoCmd,
statusCmd,
createCmd,
dbVersionCmd,
}
func main() {
flag.Usage = usage
flag.Parse()
args := flag.Args()
if len(args) == 0 || args[0] == "-h" {
flag.Usage()
return
}
var cmd *Command
name := args[0]
for _, c := range commands {
if strings.HasPrefix(c.Name, name) {
cmd = c
break
}
}
if cmd == nil {
fmt.Printf("error: unknown command %q\n", name)
flag.Usage()
os.Exit(1)
}
cmd.Exec(args[1:])
}
func usage() {
fmt.Print(usagePrefix)
flag.PrintDefaults()
usageTmpl.Execute(os.Stdout, commands)
}
var usagePrefix = `
gorm-goose is a database migration management system for Go projects.
Usage:
gorm-goose [options] <subcommand> [subcommand options]
Options:
`
var usageTmpl = template.Must(template.New("usage").Parse(
`
Commands:{{range .}}
{{.Name | printf "%-10s"}} {{.Summary}}{{end}}
`))