How to use run method of cmd Package

Best K6 code snippet using cmd.run

cobra.go

Source:cobra.go

...26}27// Puppet28var puppetCmd = &cobra.Command{29	Use:   "puppet",30	Short: "puppet management (run/status/etc)",31	//	Args: cobra.MinimumNArgs(1),32	Run: func(cmd *cobra.Command, args []string) {33		cmd.Help()34		os.Exit(1)35	},36}37var puppetRunCmd = &cobra.Command{38	Use:   "run",39	Short: "run puppet on one or more machines. Needs --target. Specify --target all to run on all discovered ones",40	Run: func(cmd *cobra.Command, args []string) {41		cfg, runtime := Init(cmd)42		c := cmd.Flags()43		_ = cfg44		target := stringOrPanic(c.GetString("node"))45		if len(target) == 0 {46			target = stringOrPanic(c.GetString("target"))47		}48		randomDelay := durationOrPanic(c.GetDuration("random-delay"))49		if len(target) == 0 {50			log.Warn("need --target parameter")51			os.Exit(1)52		}53		if stringOrPanic(c.GetString("node")) == "all" &&54			randomDelay == 0 &&55			len(stringOrPanic(c.GetString("filter"))) > 3 {56			randomDelay = time.Second57		}58		if stringOrPanic(c.GetString("node")) == "all" && randomDelay == 0 {59			log.Errorf("do not run all 'all' without delay, if you REALLY need to run all nodes at once set random-delay to '1s' ")60			cmd.Help()61			os.Exit(1)62		}63		filter := stringOrPanic(c.GetString("filter"))64		log.Warnf("filter query: %s", filter)65		client.PuppetRun(&runtime, target, filter, randomDelay)66		log.Warnf("sending  puppet run request to %s", stringOrPanic(c.GetString("node")))67	},68}69var puppetStatusCmd = &cobra.Command{70	Use:   "status",71	Short: "display status of last puppet run",72	Run: func(cmd *cobra.Command, args []string) {73		StatusPuppet(cmd)74	},75}76// Status77var statusCmd = &cobra.Command{78	Use:   "status",79	Short: "get status",80	Run: func(cmd *cobra.Command, args []string) {81		cmd.Help()82	},83}84var statusPuppetCmd = &cobra.Command{85	Use:   "puppet",86	Short: "Puppet Status",87	Run: func(cmd *cobra.Command, args []string) {88		StatusPuppet(cmd)89	},90}91var statusRodrevCmd = &cobra.Command{92	Use:   "rodrev",93	Short: "Rodrev status",94	Run: func(cmd *cobra.Command, args []string) {95		StatusRodrev(cmd)96	},97}98var fenceCmd = &cobra.Command{99	Use:   "fence",100	Short: "fencing commands",101	Run: func(cmd *cobra.Command, args []string) {102		cmd.Help()103	},104}105var fenceRunCmd = &cobra.Command{106	Use:   "run <node>",107	Short: "Run fencing on node specified as parameter",108	Run:   FenceRun,109}110var fenceStatusCmd = &cobra.Command{111	Use:   "status <node>",112	Short: "Check whether fencing is working on node",113	Run:   FenceStatus,114}115func cobraDefaultString(env string, defaultValue string) string {116	e := os.Getenv(env)117	if e == "" {118		return defaultValue119	} else {120		return e121	}122}123func cobraInit() {124	cobraInitFlags()125	cobraInitCommands()126}127func cobraInitFlags() {128	rootCmd.PersistentFlags().BoolP(129		"quiet",130		"q",131		false,132		"quiet/silent mode. will only show stderr warnings/errors",133	)134	rootCmd.PersistentFlags().BoolP(135		"debug",136		"d",137		false,138		"Debug mode",139	)140	rootCmd.PersistentFlags().String(141		"mqtt-url",142		cobraDefaultString("RF_MQTT_URL", ""), // do not put default there, it is in MergeCliConfig143		"URL for the MQ server. Use tls:// to enable encryption (default: tcp://mqtt:mqtt@127.0.0.1:1883)",144	)145	rootCmd.PersistentFlags().StringP(146		"output-format",147		"o",148		"stderr",149		"Output format: stderr(human readable),csv,json",150	)151	rootCmd.PersistentFlags().StringP(152		"config",153		"c",154		"",155		"config file",156	)157	//158	puppetCmd.PersistentFlags().StringP(159		"node",160		"n",161		"all",162		"node to run puppet on. 'all' to run on all nodes (SET DELAY or else you can DDoS your own cluster)",163	)164	puppetCmd.PersistentFlags().String(165		"target",166		"all",167		"node to run puppet on. deprecated",168	)169	puppetCmd.PersistentFlags().StringP(170		"filter",171		"f",172		"",173		"set a filter expression for nodes",174	)175	puppetCmd.PersistentFlags().DurationP(176		"random-delay",177		"t",178		0,179		"add random delay to each run. Use when running many at once",180	)181}182func cobraInitCommands() {183	rootCmd.AddCommand(versionCmd)184	puppetCmd.AddCommand(puppetRunCmd)185	puppetCmd.AddCommand(puppetStatusCmd)186	rootCmd.AddCommand(puppetCmd)187	statusCmd.AddCommand(statusPuppetCmd)188	statusCmd.AddCommand(statusRodrevCmd)189	rootCmd.AddCommand(statusCmd)190	fenceCmd.AddCommand(fenceRunCmd)191	fenceCmd.AddCommand(fenceStatusCmd)192	rootCmd.AddCommand(fenceCmd)193}...

entry.go

Source:entry.go

1package main2/*3	Definition for the main entry command. This defined the "human"4	interfaces for `run` and `run-steps`5*/6import (7	"fmt"8	"os"9	"os/exec"10	"path/filepath"11	rhjobspec "github.com/coreos/entrypoint/spec"12	log "github.com/sirupsen/logrus"13	"github.com/spf13/cobra"14)15const cosaContainerDir = "/usr/lib/coreos-assembler"16var (17	version = "devel"18	// cosaDir is the installed location of COSA. This defaults to19	// cosaContainerDir and is set via `-ldflags` at build time.20	cosaDir string21	// spec is an RHCOS spec. It is anticipated that this will be22	// changed in the future.23	spec     rhjobspec.JobSpec24	specFile string25	// entryEnvars are set for command execution26	entryEnvVars []string27	// shellCmd is the default command to execute commands.28	shellCmd = []string{"/bin/bash", "-x"}29	cmdRoot = &cobra.Command{30		Use:   "entry [command]",31		Short: "COSA entrypoint",32		Long: `Entrypoint for CoreOS Assemlber33Wrapper for COSA commands and templates`,34		PersistentPreRun: preRun,35	}36	cmdVersion = &cobra.Command{37		Use:   "version",38		Short: "Print the version number and exit.",39		Run: func(cmd *cobra.Command, args []string) {40			cmd.Printf("entry/%s version %s\n",41				cmd.Root().Name(), version)42		},43	}44	cmdSingle = &cobra.Command{45		Use:   "run",46		Short: "Run the commands and bail",47		Args:  cobra.MinimumNArgs(1),48		Run:   runSingle,49	}50	cmdSteps = &cobra.Command{51		Use:          "run-scripts",52		Short:        "Run Steps from [file]",53		Args:         cobra.MinimumNArgs(1),54		RunE:         runScripts,55		SilenceUsage: true,56	}57)58func init() {59	if cosaDir == "" {60		path, err := os.Getwd()61		if err != nil {62			cosaDir = cosaContainerDir63		} else {64			cosaDir = filepath.Dir(path)65		}66	}67	entryEnvVars = os.Environ()68	log.SetOutput(os.Stdout)69	log.SetLevel(log.DebugLevel)70	newPath := fmt.Sprintf("%s:%s", cosaDir, os.Getenv("PATH"))71	os.Setenv("PATH", newPath)72	// cmdRoot options73	cmdRoot.PersistentFlags().StringVarP(&specFile, "spec", "s", "", "location of the spec")74	cmdRoot.AddCommand(cmdVersion)75	cmdRoot.AddCommand(cmdSingle)76	// cmdStep options77	cmdRoot.AddCommand(cmdSteps)78	cmdSteps.Flags().StringVarP(&specFile, "spec", "s", "", "location of the spec")79	cmdSteps.Flags().StringArrayVarP(&shellCmd, "shell", "S", shellCmd, "shellcommand to execute")80}81func main() {82	log.Infof("CoreOS-Assembler Entrypoint, %s", version)83	if err := cmdRoot.Execute(); err != nil {84		log.Fatal(err)85	}86	os.Exit(0)87}88// runScripts reads ARGs as files and executes the rendered templates.89func runScripts(c *cobra.Command, args []string) error {90	if err := spec.RendererExecuter(ctx, entryEnvVars, args...); err != nil {91		log.Fatalf("Failed to execute scripts: %v", err)92	}93	log.Infof("Execution complete")94	return nil95}96// runSingle renders args as templates and executes the command.97func runSingle(c *cobra.Command, args []string) {98	x, err := spec.ExecuteTemplateFromString(args...)99	if err != nil {100		log.Fatal(err)101	}102	cmd := exec.CommandContext(ctx, x[0], x[1:]...)103	cmd.Stdout = os.Stdout104	cmd.Stderr = os.Stderr105	if err := cmd.Run(); err != nil {106		log.Fatal(err)107	}108	log.Infof("Done")109}110// preRun processes the spec file.111func preRun(c *cobra.Command, args []string) {...

command.go

Source:command.go

1package util2import (3	"os/exec"4	"os"5	"io"6)7type Command interface {8	Run() error9	RunDir(string) error10	RunDirWithArgs(string, ...string) error11	RunWithArgs(...string) error12	SetArgs(...string)13	AppendArg(string)14}15type CommandImpl struct {16	Command17	cmd string18	dir string19	args []string20	stdin io.Reader21	stdout io.Writer22	stderr io.Writer23}24func NewCommand(command string, args ...string) Command {25	return NewCommandDir("", command, args...)26}27func NewCommandDir(dir string, command string, args ...string) Command {28	cmd := CommandImpl{29		dir: dir,30		cmd: command,31		args: args,32		stdin: os.Stdin,33		stdout: os.Stdout,34		stderr: os.Stderr,35	}36	return cmd37}38func (cmd CommandImpl) Run() error {39	command := cmd.prepareCommand()40	return command.Run()41}42func (cmd CommandImpl) RunDir(dir string) error {43	command := cmd.prepareCommand()44	command.Dir = dir45	return command.Run()46}47func (cmd CommandImpl) RunWithArgs(args ...string) error {48	argsCopy := make([]string, len(cmd.args))49	copy(argsCopy, cmd.args)50	cmdCopy := cmd51	cmdCopy.args = append(argsCopy, args...)52	return cmdCopy.Run()53}54func (cmd CommandImpl) prepareCommand() *exec.Cmd {55	command := exec.Command(cmd.cmd, cmd.args...)56	command.Stdin = cmd.stdin57	command.Stderr = cmd.stderr58	command.Stdout = cmd.stdout59	command.Dir = cmd.dir60	return command61}62func (cmd CommandImpl) RunDirWithArgs(dir string, args ...string) error {63	argsCopy := make([]string, len(cmd.args))64	copy(argsCopy, cmd.args)65	cmdCopy := cmd66	cmdCopy.args = append(argsCopy, args...)67	return cmdCopy.RunDir(dir)68}...

run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls", "-ltr")4    stdout, err := cmd.Output()5    if err != nil {6        fmt.Println(err.Error())7    }8    fmt.Println(string(stdout))9}

run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls", "-ltr")4    stdout, err := cmd.Output()5    if err != nil {6        fmt.Println(err.Error())7    }8    fmt.Println(string(stdout))9}10import (11func main() {12    cmd := exec.Command("ls", "-ltr")13    err := cmd.Start()14    if err != nil {15        fmt.Println(err.Error())16    }17    fmt.Println("Command started")18}19import (20func main() {21    cmd := exec.Command("ls", "-ltr")22    err := cmd.Run()23    if err != nil {24        fmt.Println(err.Error())25    }26    fmt.Println("Command finished")27}28import (29func main() {30    cmd := exec.Command("ls", "-ltr")31    err := cmd.Wait()32    if err != nil {33        fmt.Println(err.Error())34    }35    fmt.Println("Command finished")36}37import (38func main() {39    cmd := exec.Command("ls", "-ltr")40    err := cmd.Process()41    if err != nil {42        fmt.Println(err.Error())43    }44    fmt.Println("Command finished")45}46import (47func main() {48    cmd := exec.Command("ls", "-ltr")49    err := cmd.ProcessState()50    if err != nil {51        fmt.Println(err.Error())52    }53    fmt.Println("Command finished")54}55import (56func main() {57    cmd := exec.Command("ls", "-

run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls")4    out, err := cmd.Output()5    if err != nil {6        fmt.Println(err.Error())7    }8    fmt.Println("Command Successfully Executed")9    output := string(out[:])10    fmt.Println(output)11}12import (13func main() {14    cmd := exec.Command("ls")15    err := cmd.Run()16    if err != nil {17        fmt.Println(err.Error())18    }19    fmt.Println("Command Successfully Executed")20}21import (22func main() {23    cmd := exec.Command("ls")24    out, err := cmd.CombinedOutput()25    if err != nil {26        fmt.Println(err.Error())27    }28    fmt.Println("Command Successfully Executed")29    output := string(out[:])30    fmt.Println(output)31}32import (33func main() {34    cmd := exec.Command("ls")35    cmd.Stdin = strings.NewReader("some input")36    out, err := cmd.CombinedOutput()37    if err != nil {38        fmt.Println(err.Error())39    }40    fmt.Println("Command Successfully Executed")41    output := string(out[:])42    fmt.Println(output)43}44import (45func main() {46    cmd := exec.Command("ls")47    cmd.Stdin = strings.NewReader("some input")48    err := cmd.Run()49    if err != nil {50        fmt.Println(err.Error())51    }52    fmt.Println("Command Successfully Executed")

run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls")4	output, err := cmd.Output()5	if err != nil {6		fmt.Println(err.Error())7	}8	fmt.Println(string(output))9}

run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ping", "google.com")4    err := cmd.Run()5    if err != nil {6        log.Fatal(err)7    }8    fmt.Println("Command finished successfully")9}

run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-ltr")4	stdout, err := cmd.Output()5	if err != nil {6		fmt.Println(err.Error())7	}8	fmt.Println(string(stdout))9}10import (11func main() {12	cmd := exec.Command("ls", "-ltr")13	stdout, err := cmd.Output()14	if err != nil {15		fmt.Println(err.Error())16	}17	print(string(stdout))18}

run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls", "-l")4    stdout, err := cmd.Output()5    if err != nil {6        log.Fatal(err)7    }8    fmt.Println(string(stdout))9}10import (11func main() {12    cmd := exec.Command("ls", "-l")13    err := cmd.Run()14    if err != nil {15        log.Fatal(err)16    }17    fmt.Println("Command successfully executed")18}19import (20func main() {21    cmd := exec.Command("ls", "-l")22    err := cmd.Start()23    if err != nil {24        log.Fatal(err)25    }26    fmt.Println("Command successfully executed")27}28import (29func main() {30    cmd := exec.Command("ls", "-l")31    stdoutStderr, err := cmd.CombinedOutput()32    if err != nil {33        log.Fatal(err)34    }35    fmt.Println(string(stdoutStderr))36}37import (38func main() {39    cmd := exec.Command("ls", "-l")40    stdout, err := cmd.Output()41    if err != nil {42        log.Fatal(err)43    }44    fmt.Println(string(stdout))45}46import (47func main() {48    cmd := exec.Command("ls", "-l")49    stdout, err := cmd.StdoutPipe()50    if err != nil {51        log.Fatal(err)52    }53    if err := cmd.Start(); err != nil {54        log.Fatal(err)55    }56    output, err := ioutil.ReadAll(stdout)57    if err != nil {58        log.Fatal(err

run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-ltr")4	stdout, err := cmd.StdoutPipe()5	if err != nil {6		fmt.Println(err)7	}8	if err := cmd.Start(); err != nil {9		fmt.Println(err)10	}11	scanner := bufio.NewScanner(stdout)12	scanner.Split(bufio.ScanLines)13	for scanner.Scan() {14		m := scanner.Text()15		fmt.Println(m)16	}17	if err := cmd.Wait(); err != nil {18		fmt.Println(err)19	}20}

run

Using AI Code Generation

1import (2func main() {3    err := cmd.Run()4    if err != nil {5        panic(err)6    }7    fmt.Printf(out.String())8}9import (10func main() {11    out, err := cmd.Output()12    if err != nil {13        panic(err)14    }15    fmt.Printf(string(out))16}17import (18func main() {19    out, err := cmd.CombinedOutput()20    if err != nil {21        panic(err)22    }23    fmt.Printf(string(out))24}25import (26func main() {27    out, err := cmd.CombinedOutput()28    if err != nil {29        panic(err)30    }31    fmt.Printf(string(out))32}33import (34func main() {35    out, err := cmd.CombinedOutput()36    if err != nil {37        panic(err)38    }39    fmt.Printf(string(out))40}41import (42func main() {43    out, err := cmd.CombinedOutput()44    if err != nil {45        panic(err)46    }47    fmt.Printf(string(out))48}

run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-l")4	output, err := cmd.Output()5	if err != nil {6		fmt.Println(err.Error())7	}8	fmt.Println(string(output))9}

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