/
gen.go
74 lines (59 loc) · 1.16 KB
/
gen.go
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// this is where magic happens
package gen
import (
"bytes"
"go/ast"
"go/format"
"go/parser"
"go/token"
"io/ioutil"
"path/filepath"
"github.com/envzo/zorm/parse"
"github.com/envzo/zorm/util"
)
type gen struct {
T string
x *parse.X
B *Buf
}
func Gen(file, folder, pkg string) error {
b, err := ioutil.ReadFile(file)
if err != nil {
return err
}
xs, err := parse.Parse(b)
if err != nil {
return err
}
for _, x := range xs {
g := &gen{
T: util.ToCamel(x.TB),
x: x,
B: NewBuf(),
}
// gen_<tb>_<db>.go
base := "gen_" + g.T + "_" + x.Engine
fn := base + ".go"
fn = filepath.Join(folder, fn)
fset := token.NewFileSet()
fileAST, err := parser.ParseFile(fset, "", g.genORM(pkg), parser.ParseComments)
if err != nil {
return err
}
ast.SortImports(fset, fileAST)
var b bytes.Buffer
if err = format.Node(&b, fset, fileAST); err != nil {
return err
}
if err = ioutil.WriteFile(fn, b.Bytes(), 0644); err != nil {
return err
}
// gen_<tb>_<db>.sql
fn = base + ".sql"
fn = filepath.Join(folder, fn)
if err = ioutil.WriteFile(fn, []byte(genSql(x)), 0644); err != nil {
return err
}
}
return nil
}