sqlboiler/main.go
2016-08-15 23:15:05 +10:00

144 lines
3.7 KiB
Go

// Package main defines a command line interface for the sqlboiler package
package main
import (
"errors"
"fmt"
"os"
"path/filepath"
"github.com/kat-co/vala"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
var (
cmdState *State
cmdConfig *Config
)
func main() {
var err error
viper.SetConfigName("sqlboiler")
configHome := os.Getenv("XDG_CONFIG_HOME")
homePath := os.Getenv("HOME")
wd, err := os.Getwd()
if err != nil {
wd = "./"
}
configPaths := []string{wd}
if len(configHome) > 0 {
configPaths = append(configPaths, filepath.Join(configHome, "sqlboiler"))
} else {
configPaths = append(configPaths, filepath.Join(homePath, ".config/sqlboiler"))
}
for _, p := range configPaths {
viper.AddConfigPath(p)
}
if err := viper.ReadInConfig(); err != nil {
fmt.Printf("Cannot read or locate config file: %s\n", err)
os.Exit(1)
}
// Set up the cobra root command
var rootCmd = &cobra.Command{
Use: "sqlboiler [flags] <driver>",
Short: "SQL Boiler generates an ORM tailored to your database schema.",
Long: "SQL Boiler generates a Go ORM from template files, tailored to your database schema.\n" +
`Complete documentation is available at http://github.com/vattle/sqlboiler`,
Example: `sqlboiler postgres`,
PreRunE: preRun,
RunE: run,
PostRunE: postRun,
SilenceErrors: true,
SilenceUsage: true,
}
// Set up the cobra root command flags
rootCmd.PersistentFlags().StringP("output", "o", "models", "The name of the folder to output to")
rootCmd.PersistentFlags().StringP("pkgname", "p", "models", "The name you wish to assign to your generated package")
viper.SetDefault("postgres.sslmode", "require")
viper.SetDefault("postgres.port", "5432")
viper.BindPFlags(rootCmd.PersistentFlags())
viper.AutomaticEnv()
if err := rootCmd.Execute(); err != nil {
if e, ok := err.(commandFailure); ok {
fmt.Printf("%s\n", string(e))
return
}
fmt.Printf("%+v\n", err)
os.Exit(1)
}
}
type commandFailure string
func (c commandFailure) Error() string {
return string(c)
}
func preRun(cmd *cobra.Command, args []string) error {
var err error
if len(args) == 0 {
return commandFailure("Must provide a driver name.")
}
driverName := args[0]
cmdConfig = &Config{
DriverName: driverName,
OutFolder: viper.GetString("output"),
PkgName: viper.GetString("pkgname"),
}
if viper.IsSet("postgres.dbname") {
cmdConfig.Postgres = PostgresConfig{
User: viper.GetString("postgres.user"),
Pass: viper.GetString("postgres.pass"),
Host: viper.GetString("postgres.host"),
Port: viper.GetInt("postgres.port"),
DBName: viper.GetString("postgres.dbname"),
SSLMode: viper.GetString("postgres.sslmode"),
}
// Set the default SSLMode value
if cmdConfig.Postgres.SSLMode == "" {
viper.Set("postgres.sslmode", "require")
cmdConfig.Postgres.SSLMode = viper.GetString("postgres.sslmode")
}
err = vala.BeginValidation().Validate(
vala.StringNotEmpty(cmdConfig.Postgres.User, "postgres.user"),
vala.StringNotEmpty(cmdConfig.Postgres.Host, "postgres.host"),
vala.Not(vala.Equals(cmdConfig.Postgres.Port, 0, "postgres.port")),
vala.StringNotEmpty(cmdConfig.Postgres.DBName, "postgres.dbname"),
vala.StringNotEmpty(cmdConfig.Postgres.SSLMode, "postgres.sslmode"),
).Check()
if err != nil {
return commandFailure(err.Error())
}
} else if driverName == "postgres" {
return errors.New("Postgres driver requires a postgres section in your config file.")
}
cmdState, err = New(cmdConfig)
return err
}
func run(cmd *cobra.Command, args []string) error {
return cmdState.Run(true)
}
func postRun(cmd *cobra.Command, args []string) error {
return cmdState.Cleanup()
}