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// Command midipak creates a compressed pack from
// input MIDI files.
//
// midipak OUTPUT INPUTS...
package main
import (
"context"
"database/sql"
"fmt"
"io/ioutil"
"log"
"os"
"path"
"github.com/klauspost/compress/zstd"
_ "github.com/mattn/go-sqlite3"
"go.terinstock.com/midifi/pkg/midipak"
)
func pack(ctx context.Context, output string, files []string) error {
fa := make([]midipak.File, 0, len(files))
for _, file := range files {
name := path.Base(file)
p, err := ioutil.ReadFile(file)
if err != nil {
return err
}
fa = append(fa, midipak.File{Name: name, Data: p})
}
enc, err := zstd.NewWriter(nil, zstd.WithEncoderLevel(zstd.SpeedBestCompression))
if err != nil {
return err
}
defer enc.Close()
db, err := sql.Open("sqlite3", fmt.Sprintf("%s", output))
if err != nil {
return err
}
defer db.Close()
if err := midipak.Create(ctx, db); err != nil {
return err
}
if err := midipak.Pack(ctx, db, enc, fa); err != nil {
return err
}
if _, err = db.Exec("VACUUM"); err != nil {
return err
}
return nil
}
func main() {
ctx := context.Background()
output := os.Args[1]
files := os.Args[2:]
if err := pack(ctx, output, files); err != nil {
log.Print(err)
}
}
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