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Return errors from build internal function

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This makes it easier to convert to a library.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This commit is contained in:
Justin Cormack 2017-06-20 17:25:16 -07:00
parent 7149b0f7b8
commit c5cccad62e
1 changed files with 16 additions and 14 deletions
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30
cmd/moby/build.go
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@ -240,7 +240,10 @@ func build(args []string) {
buf = new(bytes.Buffer)
w = buf
}
buildInternal(moby, w, *buildPull, addition)
err = buildInternal(moby, w, *buildPull, addition)
if err != nil {
log.Fatalf("%v", err)
}
if outputFile == nil {
image := buf.Bytes()
@ -317,8 +320,7 @@ func enforceContentTrust(fullImageName string, config *TrustConfig) bool {
}
// Perform the actual build process
// TODO return error not panic
func buildInternal(m Moby, w io.Writer, pull bool, addition addFun) {
func buildInternal(m Moby, w io.Writer, pull bool, addition addFun) error {
iw := tar.NewWriter(w)
if m.Kernel.Image != "" {
@ -327,11 +329,11 @@ func buildInternal(m Moby, w io.Writer, pull bool, addition addFun) {
kf := newKernelFilter(iw, m.Kernel.Cmdline)
err := ImageTar(m.Kernel.Image, "", kf, enforceContentTrust(m.Kernel.Image, &m.Trust), pull)
if err != nil {
log.Fatalf("Failed to extract kernel image and tarball: %v", err)
return fmt.Errorf("Failed to extract kernel image and tarball: %v", err)
}
err = kf.Close()
if err != nil {
log.Fatalf("Close error: %v", err)
return fmt.Errorf("Close error: %v", err)
}
}
@ -343,7 +345,7 @@ func buildInternal(m Moby, w io.Writer, pull bool, addition addFun) {
log.Infof("Process init image: %s", ii)
err := ImageTar(ii, "", iw, enforceContentTrust(ii, &m.Trust), pull)
if err != nil {
log.Fatalf("Failed to build init tarball from %s: %v", ii, err)
return fmt.Errorf("Failed to build init tarball from %s: %v", ii, err)
}
}
@ -355,13 +357,13 @@ func buildInternal(m Moby, w io.Writer, pull bool, addition addFun) {
useTrust := enforceContentTrust(image.Image, &m.Trust)
config, err := ConfigToOCI(image, useTrust)
if err != nil {
log.Fatalf("Failed to create config.json for %s: %v", image.Image, err)
return fmt.Errorf("Failed to create config.json for %s: %v", image.Image, err)
}
so := fmt.Sprintf("%03d", i)
path := "containers/onboot/" + so + "-" + image.Name
err = ImageBundle(path, image.Image, config, iw, useTrust, pull)
if err != nil {
log.Fatalf("Failed to extract root filesystem for %s: %v", image.Image, err)
return fmt.Errorf("Failed to extract root filesystem for %s: %v", image.Image, err)
}
}
@ -373,35 +375,35 @@ func buildInternal(m Moby, w io.Writer, pull bool, addition addFun) {
useTrust := enforceContentTrust(image.Image, &m.Trust)
config, err := ConfigToOCI(image, useTrust)
if err != nil {
log.Fatalf("Failed to create config.json for %s: %v", image.Image, err)
return fmt.Errorf("Failed to create config.json for %s: %v", image.Image, err)
}
path := "containers/services/" + image.Name
err = ImageBundle(path, image.Image, config, iw, useTrust, pull)
if err != nil {
log.Fatalf("Failed to extract root filesystem for %s: %v", image.Image, err)
return fmt.Errorf("Failed to extract root filesystem for %s: %v", image.Image, err)
}
}
// add files
err := filesystem(m, iw)
if err != nil {
log.Fatalf("failed to add filesystem parts: %v", err)
return fmt.Errorf("failed to add filesystem parts: %v", err)
}
// add anything additional for this output type
if addition != nil {
err = addition(iw)
if err != nil {
log.Fatalf("Failed to add additional files")
return fmt.Errorf("Failed to add additional files: %v", err)
}
}
err = iw.Close()
if err != nil {
log.Fatalf("initrd close error: %v", err)
return fmt.Errorf("initrd close error: %v", err)
}
return
return nil
}
// kernelFilter is a tar.Writer that transforms a kernel image into the output we want on underlying tar writer