func (c *Compilator) isPackageCompiled(pkg *model.Package) (bool, error) {
// If compiled package exists on hard disk
compiledPackagePath := pkg.GetPackageCompiledDir(c.hostWorkDir)
compiledPackagePathExists, err := validatePath(compiledPackagePath, true, "package path")
if err != nil {
return false, err
}
if !compiledPackagePathExists {
return false, nil
}
compiledDirEmpty, err := isDirEmpty(compiledPackagePath)
if err != nil {
return false, err
}
return !compiledDirEmpty, nil
}
func (c *Compilator) getSourcePackageDir(pkg *model.Package) string {
return filepath.Join(pkg.GetTargetPackageSourcesDir(c.hostWorkDir), "var", "vcap", "source")
}
func (c *Compilator) compilePackage(pkg *model.Package) (err error) {
// Prepare input dir (package plus deps)
if err := c.createCompilationDirStructure(pkg); err != nil {
return err
}
if err := c.copyDependencies(pkg); err != nil {
return err
}
// Generate a compilation script
targetScriptName := "compile.sh"
hostScriptPath := filepath.Join(pkg.GetTargetPackageSourcesDir(c.hostWorkDir), targetScriptName)
containerScriptPath := filepath.Join(docker.ContainerInPath, targetScriptName)
if err := compilation.SaveScript(c.baseType, compilation.CompilationScript, hostScriptPath); err != nil {
return err
}
// Extract package
extractDir := c.getSourcePackageDir(pkg)
if _, err := pkg.Extract(extractDir); err != nil {
return err
}
// Run compilation in container
containerName := c.getPackageContainerName(pkg)
// in-memory buffer of the log
log := new(bytes.Buffer)
stdoutWriter := docker.NewFormattingWriter(
log,
func(line string) string {
return color.GreenString("compilation-%s > %s", color.MagentaString("%s", pkg.Name), color.WhiteString("%s", line))
},
)
stderrWriter := docker.NewFormattingWriter(
log,
func(line string) string {
return color.GreenString("compilation-%s > %s", color.MagentaString("%s", pkg.Name), color.RedString("%s", line))
},
)
sourceMountName := fmt.Sprintf("source_mount-%s", uuid.New())
mounts := map[string]string{
pkg.GetTargetPackageSourcesDir(c.hostWorkDir): docker.ContainerInPath,
pkg.GetPackageCompiledTempDir(c.hostWorkDir): docker.ContainerOutPath,
// Add the volume mount to work around AUFS issues. We will clean
// the volume up (as long as we're not trying to keep the container
// around for debugging). We don't give it an actual directory to mount
// from, so it will be in some docker-maintained storage.
sourceMountName: ContainerSourceDir,
}
exitCode, container, err := c.dockerManager.RunInContainer(docker.RunInContainerOpts{
ContainerName: containerName,
ImageName: c.BaseImageName(),
Cmd: []string{"bash", containerScriptPath, pkg.Name, pkg.Version},
Mounts: mounts,
Volumes: map[string]map[string]string{sourceMountName: nil},
KeepContainer: c.keepContainer,
StdoutWriter: stdoutWriter,
StderrWriter: stderrWriter,
})
if container != nil && (!c.keepContainer || err == nil || exitCode == 0) {
// Attention. While the assignments to 'err' in the
// deferal below take effect after the 'return'
// statements coming later they are visible to the
// caller, i.e. override the 'return'ed value,
// because 'err' is a __named__ return parameter.
defer func() {
// Remove container - dockerManager.RemoveContainer does a force-rm
if removeErr := c.dockerManager.RemoveContainer(container.ID); removeErr != nil {
if err == nil {
err = removeErr
} else {
err = fmt.Errorf("Error compiling package: %s. Error removing package: %s", err.Error(), removeErr.Error())
}
}
if removeErr := c.dockerManager.RemoveVolumes(container); removeErr != nil {
if err == nil {
err = removeErr
} else {
err = fmt.Errorf("%s: Error removing volumes for package %s: %s", err, pkg.Name, removeErr)
}
}
}()
}
if err != nil {
log.WriteTo(c.ui)
return fmt.Errorf("Error compiling package %s: %s", pkg.Name, err.Error())
}
if exitCode != 0 {
log.WriteTo(c.ui)
return fmt.Errorf("Error - compilation for package %s exited with code %d", pkg.Name, exitCode)
}
return os.Rename(
pkg.GetPackageCompiledTempDir(c.hostWorkDir),
pkg.GetPackageCompiledDir(c.hostWorkDir))
}