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How to use WorkingDir method of launcher Package

Best Rod code snippet using launcher.WorkingDir

cnb_test.go

Source:cnb_test.go

...59			description: "direct command-lines are rewritten as direct command-lines",60			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, arguments: []string{"--", "web", "arg1", "arg2"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},61			shouldErr:   false,62			expected:    v1.Container{Args: []string{"--", "web", "arg1", "arg2"}},63			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},64		},65		{66			description: "defaults to web process when no process type",67			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},68			shouldErr:   false,69			expected:    v1.Container{Args: []string{"webProcess", "webArg1", "webArg2"}},70			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},71		},72		{73			description: "resolves to default 'web' process",74			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},75			shouldErr:   false,76			expected:    v1.Container{Args: []string{"webProcess", "webArg1", "webArg2"}},77			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},78		},79		{80			description: "CNB_PROCESS_TYPE=web",81			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, env: map[string]string{"CNB_PROCESS_TYPE": "web"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},82			shouldErr:   false,83			expected:    v1.Container{Args: []string{"webProcess", "webArg1", "webArg2"}},84			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},85		},86		{87			description: "CNB_PROCESS_TYPE=diag",88			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, env: map[string]string{"CNB_PROCESS_TYPE": "diag"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},89			shouldErr:   false,90			expected:    v1.Container{Args: []string{"diagProcess"}},91			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},92		},93		{94			description: "CNB_PROCESS_TYPE=direct",95			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, env: map[string]string{"CNB_PROCESS_TYPE": "direct"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},96			shouldErr:   false,97			expected:    v1.Container{Args: []string{"--", "command", "cmdArg1"}},98			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},99		},100		{101			description: "script command-line",102			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, arguments: []string{"python main.py"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},103			shouldErr:   false,104			expected:    v1.Container{Args: []string{"python main.py"}},105			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},106		},107		{108			description: "no process and no args",109			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, labels: map[string]string{"io.buildpacks.build.metadata": mdndJSON}},110			shouldErr:   false,111			expected:    v1.Container{},112			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},113		},114		{115			description: "launcher ignores image's working dir",116			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, labels: map[string]string{"io.buildpacks.build.metadata": mdndJSON}, workingDir: "/workdir"},117			shouldErr:   false,118			expected:    v1.Container{},119			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},120		},121		{122			description: "CNB_APP_DIR used if set",123			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, labels: map[string]string{"io.buildpacks.build.metadata": mdndJSON}, env: map[string]string{"CNB_APP_DIR": "/appDir"}, workingDir: "/workdir"},124			shouldErr:   false,125			expected:    v1.Container{},126			config:      ContainerDebugConfiguration{WorkingDir: "/appDir"},127		},128		{129			description: "CNB_PROCESS_TYPE=sh-c ()Procfile-style)",130			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, env: map[string]string{"CNB_PROCESS_TYPE": "sh-c"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},131			shouldErr:   false,132			expected:    v1.Container{Args: []string{"command arg1 arg2"}},133			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},134		},135		{136			description: "CNB_PROCESS_TYPE=bash-c ()Procfile-style)",137			input:       imageConfiguration{entrypoint: []string{"/cnb/lifecycle/launcher"}, env: map[string]string{"CNB_PROCESS_TYPE": "sh-c"}, labels: map[string]string{"io.buildpacks.build.metadata": mdJSON}},138			shouldErr:   false,139			expected:    v1.Container{Args: []string{"command arg1 arg2"}},140			config:      ContainerDebugConfiguration{WorkingDir: "/workspace"},141		},142	}143	for _, test := range tests {144		// Test that when a transform modifies the command-line arguments, then145		// the changes are reflected to the launcher command-line146		testutil.Run(t, test.description+" (args changed)", func(t *testutil.T) {147			argsChangedTransform := func(c *v1.Container, ic imageConfiguration) (ContainerDebugConfiguration, string, error) {148				c.Args = ic.arguments149				return ContainerDebugConfiguration{}, "", nil150			}151			copy := v1.Container{}152			c, _, err := updateForCNBImage(&copy, test.input, argsChangedTransform)153			t.CheckErrorAndDeepEqual(test.shouldErr, err, test.expected, copy)154			t.CheckErrorAndDeepEqual(test.shouldErr, err, test.config, c)155		})156		// Test that when the arguments are left unchanged, that the container is unchanged157		testutil.Run(t, test.description+" (args unchanged)", func(t *testutil.T) {158			argsUnchangedTransform := func(c *v1.Container, ic imageConfiguration) (ContainerDebugConfiguration, string, error) {159				return ContainerDebugConfiguration{WorkingDir: ic.workingDir}, "", nil160			}161			copy := v1.Container{}162			_, _, err := updateForCNBImage(&copy, test.input, argsUnchangedTransform)163			t.CheckError(test.shouldErr, err)164			if copy.Args != nil {165				t.Errorf("args not nil: %v", copy.Args)166			}167		})168	}169}...

main.go

Source:main.go

...13func failedStart(message string, err error) {14	_, _ = fmt.Fprintln(os.Stderr, fmt.Sprint("failed to start nocc-server: ", message, ": ", err))15	os.Exit(1)16}17// cleanupWorkingDir ensures that workingDir exists and is empty18// it's executed on server launch19// as a consequence, all file caches are lost on restart20func cleanupWorkingDir(workingDir string) error {21	oldWorkingDir := workingDir + ".old"22	if err := os.RemoveAll(oldWorkingDir); err != nil {23		failedStart("can't remove old working dir", err)24	}25	if _, err := os.Stat(workingDir); err == nil {26		if err := os.Rename(workingDir, oldWorkingDir); err != nil {27			failedStart("can't rename working dir %s to .old", err)28		}29	}30	if err := os.MkdirAll(workingDir, os.ModePerm); err != nil {31		return err32	}33	return nil34}35// printDockerContainerIP is a dev/debug function called only when build special for local Docker, for local testing.36// As Docker containers' IP often change, this info at start up is useful for development.37func printDockerContainerIP() {38	if conn, err := net.Dial("udp", "8.8.8.8:80"); err == nil {39		fmt.Println("running in Docker container IP", conn.LocalAddr().(*net.UDPAddr).IP.String())40		_ = conn.Close()41	}42}43func main() {44	var err error45	showVersionAndExit := common.CmdEnvBool("Show version and exit", false,46		"version", "")47	showVersionAndExitShort := common.CmdEnvBool("Show version and exit", false,48		"v", "")49	bindHost := common.CmdEnvString("Binding address, default 0.0.0.0.", "0.0.0.0",50		"host", "")51	listenPort := common.CmdEnvInt("Listening port, default 43210.", 43210,52		"port", "")53	workingDir := common.CmdEnvString("Directory for saving incoming files, default /tmp/nocc-server.", "/tmp/nocc-server",54		"working-dir", "")55	logFileName := common.CmdEnvString("A filename to log, by default use stderr.", "",56		"log-filename", "")57	logVerbosity := common.CmdEnvInt("Logger verbosity level for INFO (-1 off, default 0, max 2).\nErrors are logged always.", 0,58		"log-verbosity", "")59	srcCacheLimit := common.CmdEnvInt("Header and source cache limit, in bytes, default 4G.", 4*1024*1024*1024,60		"src-cache-limit", "")61	objCacheLimit := common.CmdEnvInt("Compiled obj cache limit, in bytes, default 16G.", 16*1024*1024*1024,62		"obj-cache-limit", "")63	statsdHostPort := common.CmdEnvString("Statsd udp address (host:port), omitted by default.\nIf omitted, stats won't be written.", "",64		"statsd", "")65	common.ParseCmdFlagsCombiningWithEnv()66	if *showVersionAndExit || *showVersionAndExitShort {67		fmt.Println(common.GetVersion())68		os.Exit(0)69	}70	if err = cleanupWorkingDir(*workingDir); err != nil {71		failedStart("Can't create working directory "+*workingDir, err)72	}73	if err = server.MakeLoggerServer(*logFileName, *logVerbosity); err != nil {74		failedStart("Can't init logger", err)75	}76	s := &server.NoccServer{77		StartTime: time.Now(),78	}79	s.Stats, err = server.MakeStatsd(*statsdHostPort)80	if err != nil {81		failedStart("Failed to connect to statsd", err)82	}83	s.ActiveClients, err = server.MakeClientsStorage(path.Join(*workingDir, "clients"))84	if err != nil {...

WorkingDir

Using AI Code Generation

1import (2func main() {3    if err != nil {4        panic(err)5    }6}7import (8func main() {9    err := open.Start("test.txt")10    if err != nil {11        panic(err)12    }13}14import (15func main() {16    err := open.Start("test.txt")17    if err != nil {18        panic(err)19    }20}21import (22func main() {23    err := open.Start("test.txt")24    if err != nil {25        panic(err)26    }27}28import (

WorkingDir

Using AI Code Generation

1import (2func main() {3    fmt.Println("Starting the process...")4    cmd := exec.Command("notepad.exe")5    err := cmd.Start()6    if err != nil {7        fmt.Println("Error starting process: ", err)8    }9    fmt.Println("Waiting for process to finish...")10    err = cmd.Wait()11    fmt.Println("Process finished with error: ", err)12}13func (cmd *Cmd) WorkingDir(dir string) *Cmd14import (15func main() {16    fmt.Println("Starting the process...")17    cmd := exec.Command("notepad.exe")18    err := cmd.Start()19    if err != nil {20        fmt.Println("Error starting process: ", err)21    }22    fmt.Println("Waiting for process to finish...")23    err = cmd.Wait()24    fmt.Println("Process finished with error: ", err)25}26func (cmd *Cmd) Wait() error27import (28func main() {29    fmt.Println("Starting the process...")30    cmd := exec.Command("notepad.exe")

WorkingDir

Using AI Code Generation

1import (2func main() {3	launcher := exec.Command("notepad.exe")4	wd, err := os.Getwd()5	if err != nil {6		fmt.Println(err)7	}8	err = launcher.Start()9	if err != nil {10		fmt.Println(err)11	}12	fmt.Println("Notepad launched successfully")13}14func (cmd *Cmd) Environ() []string15import (16func main() {17	launcher := exec.Command("notepad.exe")18	launcher.Env = os.Environ()19	launcher.Env = append(launcher.Env, "TEST=123")20	err := launcher.Start()21	if err != nil {22		fmt.Println(err)23	}24	fmt.Println("Notepad launched successfully")25}

WorkingDir

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World")4	cmd := exec.Command("ls")5	output, _ := cmd.Output()6	fmt.Println(string(output))7}

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