cmd

Documentation

Index

• Variables
• func Execute()

Variables

var RootCmd = &cobra.Command{
	Use:  "mixer",
	Long: `Mixer is a tool used to compose OS update content and images.`,

	PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
		if rootCmdFlags.cpuProfile != "" {
			f, err := os.Create(rootCmdFlags.cpuProfile)
			if err != nil {
				failf("couldn't create file for CPU profile: %s", err)
			}
			err = pprof.StartCPUProfile(f)
			if err != nil {
				failf("couldn't start profiling: %s", err)
			}
		}

		if cmd.Parent() == nil {
			if rootCmdFlags.version {
				fmt.Printf("Mixer %s\n", builder.Version)
				os.Exit(0)
			}
			if rootCmdFlags.check {
				ok := checkAllDeps()
				if !ok {
					os.Exit(1)
				}
				os.Exit(0)
			}
		}

		noParseConfigCmds := []string{"init", "config"}
		for _, ignoreCmd := range noParseConfigCmds {
			if cmdContains(cmd, ignoreCmd) {
				return checkCmdDeps(cmd)
			}
		}

		b, err := builder.NewFromConfig(configFile)
		if err != nil {
			fail(err)
		}

		if !builder.Offline {
			noNetworkCmds := []string{"list", "edit", "validate", "convert", "set", "repo", "add-rpms"}

			for _, ignoreCmd := range noNetworkCmds {
				if cmdContains(cmd, ignoreCmd) {
					builder.Offline = true
					break
				}
			}
		}

		if !builder.Offline && builder.Native && b.UpstreamURL != "" {
			hostFormat, upstreamFormat, err := b.GetHostAndUpstreamFormats()
			if err != nil {
				fail(err)
			}

			if hostFormat == "" {
				fmt.Println("Warning: Unable to determine host format. Running natively may fail.")
			} else if hostFormat != upstreamFormat {
				fmt.Println("Warning: The host format and mix upstream format do not match.",
					"Mixer may be incompatible with this format; running natively may fail.")
			}
		} else if !builder.Offline {
			fmt.Printf("Warning: Using Format=%s from mixer.state for this build.\n", b.State.Mix.Format)
		}

		if !cmdContains(cmd, "format-bump") && !cmdContains(cmd, "upstream-format") && cmdContains(cmd, "build") && !cmdContains(cmd, "image") {

			if builder.Offline && !builder.Native {
				fmt.Println("Warning: Unable to determine upstream format in --offline mode, build may fail if building across format boundaries.")
				if err := b.RunCommandInContainer(reconstructCommand(cmd, args)); err != nil {
					fail(err)
				}
				return nil
			}
			if bumpNeeded, err := b.CheckBumpNeeded(false); err != nil {
				return err
			} else if bumpNeeded {
				cancelRun(cmd)
				return nil
			}

			if !builder.Native {
				if err := b.RunCommandInContainer(reconstructCommand(cmd, args)); err != nil {
					fail(err)
				}

				cancelRun(cmd)
				return nil
			}
		}

		return checkCmdDeps(cmd)
	},

	PersistentPostRun: func(cmd *cobra.Command, args []string) {
		if rootCmdFlags.cpuProfile != "" {
			pprof.StopCPUProfile()
		}
	},

	Run: func(cmd *cobra.Command, args []string) {

		cmd.Print(cmd.UsageString())
	},
}

RootCmd represents the base command when called without any subcommands

Functions

func Execute

func Execute()

Execute adds all child commands to the root command and sets flags appropriately. This is called by main.main(). It only needs to happen once to the rootCmd.