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main.go
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main.go
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package main
import (
"fmt"
"os"
"path"
"path/filepath"
"strings"
"github.com/urfave/cli/v2"
"github.com/pharosnet/dalg/generates"
"github.com/pharosnet/dalg/logs"
"github.com/pharosnet/dalg/parser"
)
func main() {
app := cli.NewApp()
app.Name = "dalc"
app.Version = "v2"
app.Usage = `generate database access layer codes`
app.ArgsUsage = "dalc --dialect=postgres --schema=schema.sql --query=query.sql --out=path"
app.Flags = []cli.Flag{
&cli.StringFlag{
Name: "dialect",
Value: "",
Usage: "sql dialect name",
Required: true,
},
&cli.StringFlag{
Name: "out",
Value: "",
Usage: "path of generated codes",
Required: true,
},
&cli.StringFlag{
Name: "schema",
Value: "",
Usage: "ddl",
Required: true,
},
&cli.StringFlag{
Name: "query",
Value: "",
Usage: "dml and dql",
Required: true,
},
&cli.BoolFlag{
Name: "json_tags",
Usage: "emit json tags",
Required: false,
Value: false,
},
&cli.BoolFlag{
Name: "verbose",
Value: false,
Usage: "verbose",
Required: false,
},
}
app.Action = func(c *cli.Context) (err error) {
verbose := c.Bool("verbose")
logs.NewLog(verbose)
dir, wdErr := os.Getwd()
if wdErr != nil {
err = wdErr
return
}
dialect := strings.ToLower(strings.TrimSpace(c.String("dialect")))
if dialect != "mysql" && dialect != "postgres" {
err = fmt.Errorf("invallid dialect, it only can be mysql or postgres")
return
}
logs.Log().Println("sql dialect is", dialect)
out := strings.TrimSpace(c.String("out"))
out = path.Join(dir, out)
logs.Log().Println("path of code generated is", out)
_, pkgName := filepath.Split(out)
logs.Log().Println("package name of code generated is", pkgName)
schema := strings.TrimSpace(c.String("schema"))
schema = path.Join(dir, schema)
logs.Log().Println("path of schema files is", schema)
query := strings.TrimSpace(c.String("query"))
query = path.Join(dir, query)
logs.Log().Println("path of query files is is", query)
jsonTags := c.Bool("json_tags")
logs.Log().Println("emit json tags", jsonTags)
tables, queries, parseErr := parser.Parse(dialect, schema, query)
if parseErr != nil {
err = parseErr
return
}
genErr := generates.Generate(out, jsonTags, tables, queries)
if genErr != nil {
err = genErr
return
}
logs.Log().Println("succeed", out)
return
}
err := app.Run(os.Args)
if err != nil {
fmt.Println(err)
}
}