mirror of https://github.com/bcicen/ctop.git
102 lines
1.6 KiB
Go
102 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"os"
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"github.com/bcicen/ctop/config"
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"github.com/bcicen/ctop/cwidgets/compact"
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"github.com/bcicen/ctop/logging"
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"github.com/bcicen/ctop/widgets"
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ui "github.com/gizak/termui"
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)
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var (
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build = "none"
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version = "dev-build"
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log *logging.CTopLogger
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cursor *GridCursor
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cGrid *compact.CompactGrid
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header *widgets.CTopHeader
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)
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func main() {
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readArgs()
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defer panicExit()
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// init ui
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ui.ColorMap = ColorMap // override default colormap
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if err := ui.Init(); err != nil {
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panic(err)
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}
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defer ui.Close()
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// init global config
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config.Init()
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// init logger
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log = logging.Init()
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if config.GetSwitchVal("loggingEnabled") {
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logging.StartServer()
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}
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// init grid, cursor, header
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cursor = NewGridCursor()
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cGrid = compact.NewCompactGrid()
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header = widgets.NewCTopHeader()
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for {
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exit := Display()
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if exit {
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log.Notice("shutting down")
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log.Exit()
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return
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}
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}
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}
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func readArgs() {
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if len(os.Args) < 2 {
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return
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}
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for _, arg := range os.Args[1:] {
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switch arg {
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case "-v", "version":
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printVersion()
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os.Exit(0)
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case "-h", "help":
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printHelp()
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os.Exit(0)
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default:
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fmt.Printf("invalid option or argument: \"%s\"\n", arg)
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os.Exit(1)
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}
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}
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}
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func panicExit() {
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if r := recover(); r != nil {
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ui.Clear()
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fmt.Printf("panic: %s\n", r)
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os.Exit(1)
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}
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}
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var helpMsg = `ctop - container metric viewer
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usage: ctop [options]
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options:
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-h display this help dialog
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-v output version information and exit
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`
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func printHelp() {
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fmt.Println(helpMsg)
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}
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func printVersion() {
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fmt.Printf("ctop version %v, build %v\n", version, build)
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}
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