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grab.go
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grab.go
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package stacker
import (
"fmt"
"io/fs"
"os"
"path"
"stackerbuild.io/stacker/pkg/container"
"stackerbuild.io/stacker/pkg/types"
)
func Grab(sc types.StackerConfig, storage types.Storage, name string, source string, targetDir string,
mode *fs.FileMode, uid, gid int,
) error {
c, err := container.New(sc, name)
if err != nil {
return err
}
defer c.Close()
err = c.BindMount(targetDir, "/stacker", "")
if err != nil {
return err
}
defer os.Remove(path.Join(sc.RootFSDir, name, "rootfs", "stacker"))
err = SetupBuildContainerConfig(sc, storage, c, name)
if err != nil {
return err
}
bcmd := []string{insideStaticStacker, "internal-go"}
err = c.Execute(append(bcmd, "cp", source, "/stacker/"+path.Base(source)), nil)
if err != nil {
return err
}
if mode != nil {
err = c.Execute(append(bcmd, "chmod", fmt.Sprintf("%o", *mode), "/stacker/"+path.Base(source)), nil)
if err != nil {
return err
}
}
if uid > 0 {
owns := fmt.Sprintf("%d", uid)
if gid > 0 {
owns += fmt.Sprintf(":%d", gid)
}
err = c.Execute(append(bcmd, "chown", owns, "/stacker/"+path.Base(source)), nil)
if err != nil {
return err
}
}
return nil
}