/
main.go
82 lines (69 loc) · 1.95 KB
/
main.go
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package main
import (
"bytes"
"flag"
"fmt"
"go/format"
"os"
bgenerator "github.com/tobgu/qframe/internal/bcolumn"
egenerator "github.com/tobgu/qframe/internal/ecolumn"
fgenerator "github.com/tobgu/qframe/internal/fcolumn"
igenerator "github.com/tobgu/qframe/internal/icolumn"
qfgenerator "github.com/tobgu/qframe/internal/qframe/generator"
sgenerator "github.com/tobgu/qframe/internal/scolumn"
"github.com/tobgu/qframe/qerrors"
)
/*
Simple code generator used in various places to reduce code duplication
*/
func main() {
dstFile := flag.String("dst-file", "", "File that the code should be generated to")
source := flag.String("source", "", "Which package that code should be generated for")
flag.Parse()
if *dstFile == "" {
panic("Destination file must be given")
}
generators := map[string]func() (*bytes.Buffer, error){
"idoc": igenerator.GenerateDoc,
"ifilter": igenerator.GenerateFilters,
"fdoc": fgenerator.GenerateDoc,
"ffilter": fgenerator.GenerateFilters,
"bdoc": bgenerator.GenerateDoc,
"bfilter": bgenerator.GenerateFilters,
"edoc": egenerator.GenerateDoc,
"efilter": egenerator.GenerateFilters,
"sdoc": sgenerator.GenerateDoc,
"sfilter": sgenerator.GenerateFilters,
"qframe": qfgenerator.GenerateQFrame,
}
generator, ok := generators[*source]
if !ok {
panic(fmt.Sprintf("Unknown source: \"%s\"", *source))
}
buf, err := generator()
if err != nil {
panic(err)
}
if err := writeFile(buf, *dstFile); err != nil {
panic(err)
}
}
func writeFile(buf *bytes.Buffer, file string) error {
if file == "" {
return qerrors.New("writeFile", "Output file must be specified")
}
f, err := os.Create(file)
if err != nil {
return err
}
defer f.Close()
// The equivalent of "go fmt" before writing content
src := buf.Bytes()
fmtSrc, err := format.Source(src)
if err != nil {
os.Stdout.WriteString(string(src))
return qerrors.Propagate("Format error", err)
}
_, err = f.Write(fmtSrc)
return err
}