func getStage1HashFromPath(fn *image.Finder, imgLoc, imgFileName string) (*types.Hash, error) {
var fetchErr error
var fallbackErr error
if imgLoc != "" {
hash, err := fn.FindImage(imgLoc, "", apps.AppImagePath)
if err == nil {
return hash, nil
}
fetchErr = err
}
if imgFileName != "" {
exePath, err := os.Readlink("/proc/self/exe")
if err != nil {
fallbackErr = err
} else {
// using stage1 image in rkt's path, don't check the signature
fn.Ks = nil
rktDir := filepath.Dir(exePath)
imgPath := filepath.Join(rktDir, imgFileName)
hash, err := fn.FindImage(imgPath, "", apps.AppImagePath)
if err == nil {
return hash, nil
}
fallbackErr = err
}
}
return nil, mergeStage1Errors(fetchErr, fallbackErr)
}
