cmd

var RootCmd = &cobra.Command{
	Use: "burn command [flags] <input>",
	Short: `A tool to convert performance profiles to hierarchical data structures that 
can be visualized as flame graphs`,
	Long: `
burn 🔥 is a CLI tool to convert performance profiles to hierarchical data
structures that can be visualized as flame graphs.

burn can also generate a self contained html flame graphs from the same data.

Examples:
  burn convert examples/out.perf
  burn convert --folded examples/out.perf-folded
  burn html examples/out.perf
	`,
	PersistentPreRun: func(cmd *cobra.Command, args []string) {
		if cpuProfile != "" {
			f, err := os.Create(cpuProfile)
			if err != nil {
				log.Fatal(err)
			}
			pprof.StartCPUProfile(f)
		}
	},

	Run: func(cmd *cobra.Command, args []string) {
		cmd.Usage()
	},
	PersistentPostRun: func(cmd *cobra.Command, args []string) {
		if cpuProfile != "" {
			pprof.StopCPUProfile()
		}
		if memProfile != "" {
			f, err := os.Create(memProfile)
			if err != nil {
				log.Fatal(err)
			}
			pprof.WriteHeapProfile(f)
			f.Close()
		}
	},
}