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compile.go
60 lines (51 loc) · 1.04 KB
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compile.go
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package cmd
import (
"bytes"
"compress/gzip"
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"github.com/influxdata/flux/ast"
"github.com/influxdata/flux/libflux/go/libflux"
)
const compileSuffix = ".fc"
func compilePackage(dir, pkgName string, astPkg *ast.Package) error {
bs, err := json.Marshal(astPkg)
if err != nil {
return err
}
hdl, err := libflux.ParseJSON(bs)
if err != nil {
return err
}
pkg, err := libflux.Analyze(hdl)
if err != nil {
hdl.Free()
return err
}
defer pkg.Free()
bc, err := pkg.MarshalFB()
if err != nil {
return err
}
pkg.Free()
if pkgDir := filepath.Dir(pkgName); pkgDir != "." {
if err := os.MkdirAll(filepath.Join(dir, pkgDir), 0755); err != nil {
return err
}
} else {
if err := os.MkdirAll(dir, 0755); err != nil {
return err
}
}
var buf bytes.Buffer
w := gzip.NewWriter(&buf)
if _, err := w.Write(bc); err != nil {
return err
}
if err := w.Close(); err != nil {
return err
}
return ioutil.WriteFile(filepath.Join(dir, pkgName+compileSuffix), buf.Bytes(), 0600)
}