func (c ProjectCompiler) Compile(projectPath *string, dataFile *string, baseDir *string, workDir *string) {
log.Notice("▶ Loading environment data from file:\n %s", *projectPath)
environment, source, err := loadEnvironment(*projectPath)
if err != nil {
util.HandleFatalError(err)
}
for _, provider := range environment.Providers {
log.Notice("▶ Switching provider to: %s", provider.Name)
log.Debug(" Creating template context")
if context, err := createContext(&environment.Data, &provider, dataFile); err == nil {
log.Notice("▶ Context data:")
printContextData(context, false)
log.Notice("▶ Compiling artifacts")
if compiled, err := compileTemplateFromString(context, source); err == nil {
var project data.Project
if err := util.LoadYAMLFromString(*compiled, &project); err == nil {
// Compile each artifact
for _, artifact := range project.Artifacts {
//log.Info(" Compiling:\n artifact: %s\n provider: %s", artifact.Name, provider.Name)
if err := compileArtifact(context, &artifact, provider.Name, baseDir, workDir); err != nil {
util.HandleFatalError(err)
}
}
} else {
err := errors.New(fmt.Sprintf("Error parsing project artifacts\nerror:\n %s", err.Error()))
util.HandleFatalError(err)
}
} else {
util.HandleFatalError(err)
}
} else {
util.HandleFatalError(err)
}
}
log.Notice("▶ Completed successfully")
}
func validateAndRunBuildCommand(flagProjectFile string, flagDataFile string) error {
// Validate command
if len(strings.TrimSpace(flagProjectFile)) == 0 {
return errors.New("Error: missing project file")
}
// Check if project file exists
if _, err := os.Stat(flagProjectFile); os.IsNotExist(err) {
return errors.New("Error: Project file doesn't exist")
}
// Workdir
workDir, _ := os.Getwd()
workDir, _ = filepath.Abs(workDir)
log.Debug("Work dir: %s", workDir)
// Get absolute paths
var projectRootDir string
if projectAbsolutePath, err := filepath.Abs(flagProjectFile); err == nil {
projectRootDir = filepath.Dir(projectAbsolutePath)
log.Debug("Project root:\n %s", projectRootDir)
log.Debug("Project file:\n %s", projectAbsolutePath)
var dataAbsolutePath *string
if len(flagDataFile) > 0 {
if dataPath, err := filepath.Abs(flagDataFile); err == nil {
dataAbsolutePath = &dataPath
log.Debug("Extra data file:\n %s", dataAbsolutePath)
} else {
return err
}
}
log.Notice("▶ Building project from file:\n %s", projectAbsolutePath)
compiler.ProjectCompiler{}.Compile(&projectAbsolutePath, dataAbsolutePath, &projectRootDir, &workDir)
return nil
} else {
return err
}
}
func compileArtifact(context *pongo2.Context, artifact *data.Artifact, providerName string, baseDir *string, workDir *string) error {
outputFile := filepath.Join(*workDir, "build", providerName, artifact.Name, "user-data")
outputDir := filepath.Dir(outputFile)
// Create output directory if missing
if exists, _ := util.FileExists(outputDir); !exists {
if err := os.MkdirAll(outputDir, 0755); err != nil {
return errors.New(fmt.Sprintf("Could not create output directory:\n %s\n\nnested error:\n %s", outputDir, err.Error()))
}
}
log.Notice("▶ Compiling artifact [%s] to:\n %s", artifact.Name, outputFile)
log.Debug(" Setting artifact name to the context")
c := pongo2.Context{
"env": map[string]interface{}{
"provider": providerName,
"artifact": artifact.Name,
},
}
if err := mergo.MergeWithOverwrite(context, c); err != nil {
return err
}
printContextData(context, true)
// Create the initial user data objects
buffer := bytes.NewBufferString("#cloud-config\n---\n")
writeFiles := make([]data.WriteFile, 0, 10)
units := make([]data.Unit, 0, 10)
// Process bricks
bricks := artifact.Bricks
for _, brick := range bricks {
log.Info(" Processing brick:\n %s", brick)
// Load metadata
if metadata, brickBaseDir, err := loadBrickMetadata(context, baseDir, &brick); err == nil {
// Process brick files
log.Debug(" Processing brick files")
if brickWriteFiles, err := processMetadataFiles(context, metadata, brickBaseDir); err != nil {
return err
} else {
writeFiles = append(writeFiles, brickWriteFiles...)
}
// Process brick units
log.Debug(" Processing brick unit")
if brickUnit, err := processMetadataUnits(context, metadata, brickBaseDir); err != nil {
return err
} else if brickUnit != nil {
units = append(units, *brickUnit)
}
} else {
return err
}
}
// Write compiled write-files section
if len(writeFiles) > 0 {
writeFilesMap := make(map[string]interface{})
writeFilesMap["write-files"] = writeFiles
if output, err := yaml.Marshal(writeFilesMap); err != nil {
return err
} else {
buffer.Write(output)
}
}
// Write rest of config file
cloudConfig := artifact.CloudConfig
// Custom CoreOS
if cloudConfig.CoreOS != nil {
coreOs := cloudConfig.CoreOS
// Add units
// if coreOs["units"] != nil {
coreOs["units"] = units
// }
// Write CoreOS section
coreOsMap := make(map[string]interface{})
coreOsMap["coreos"] = coreOs
if output, err := yaml.Marshal(coreOsMap); err != nil {
return err
} else {
buffer.Write(output)
}
}
// Append everything else to the end of the file
if cloudConfig.Generic != nil {
if output, err := yaml.Marshal(cloudConfig.Generic); err != nil {
return err
} else {
buffer.Write(output)
}
}
log.Info(" Writing output file to:\n %s", outputFile)
if err := ioutil.WriteFile(outputFile, buffer.Bytes(), 0755); err != nil {
return err
}
return nil
}
func main() {
var flagDebug bool
var flagVerbose bool
var flagQuiet bool
var flagProjectFile string
var flagDataFile string
// Root
var RootCommand = &cobra.Command{
Use: "magutt",
Short: "Magutt is a simple tool to assemble cloud-config files for CoreOS",
PersistentPreRun: func(cmd *cobra.Command, args []string) {
logLevel := log.LevelInfo
if flagQuiet && (flagDebug || flagVerbose) {
log.Warn("I'm confused... How can I be verbose and quiet at the same time?!?!?!?")
os.Exit(1)
} else {
if flagQuiet {
logLevel = log.LevelOff
} else {
if flagDebug {
logLevel = log.LevelDebug
}
// Verbose flag overrides debug level
if flagVerbose {
logLevel = log.LevelTrace
}
}
}
log.SetLogLevel(logLevel)
},
}
RootCommand.PersistentFlags().BoolVarP(&flagQuiet, "quiet", "q", false, "disable logging")
RootCommand.PersistentFlags().BoolVarP(&flagDebug, "debug", "d", false, "enable debug logging")
RootCommand.PersistentFlags().BoolVarP(&flagVerbose, "verbose", "v", false, "enable verbose logging")
// Build
var CmdBuild = &cobra.Command{
Use: "build",
Short: "Build a config file",
Run: func(cmd *cobra.Command, args []string) {
if err := validateAndRunBuildCommand(flagProjectFile, flagDataFile); err != nil {
cmd.Usage()
util.HandleFatalError(err)
}
},
}
CmdBuild.Flags().StringVarP(&flagProjectFile, "input", "i", "", "input project file")
CmdBuild.Flags().StringVarP(&flagDataFile, "extra", "e", "", "extra data file")
// Version
var CmdVersion = &cobra.Command{
Use: "version",
Short: "Print version number",
Run: func(cmd *cobra.Command, args []string) {
log.Notice("Magutt v%s\n", version)
},
}
// Common flags
RootCommand.AddCommand(CmdBuild)
RootCommand.AddCommand(CmdVersion)
// Process command line
RootCommand.Execute()
}