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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "math" | ||
| "os/exec" | ||
| "os/user" | ||
| "runtime" | ||
| "strconv" | ||
| "strings" | ||
| "syscall" | ||
| "time" | ||
|
|
||
| "github.com/gogrlx/grlx/types" | ||
| ) | ||
|
|
||
| func (c Cmd) run(ctx context.Context, test bool) (types.Result, error) { | ||
| var result types.Result | ||
| var err error | ||
|
|
||
| cmd, ok := c.params["name"].(string) | ||
| if !ok { | ||
| return result, errors.New("invalid command; name must be a string") | ||
| } | ||
| splitCmd := strings.Split(cmd, " ") | ||
| if len(splitCmd) == 0 { | ||
| return result, errors.New("invalid command; name must not be empty") | ||
| } | ||
| args := splitCmd[1:] | ||
|
|
||
| runas := "" | ||
| path := "" | ||
| cwd := "" | ||
| env := []string{} | ||
| timeout := "" | ||
| if runasInter, ok := c.params["runas"]; ok { | ||
| runas, ok = runasInter.(string) | ||
| } | ||
| if pathInter, ok := c.params["path"]; ok { | ||
| path, ok = pathInter.(string) | ||
| } | ||
| if cwdInter, ok := c.params["cwd"]; ok { | ||
| cwd, ok = cwdInter.(string) | ||
| } | ||
| if envInter, ok := c.params["env"]; ok { | ||
| env, ok = envInter.([]string) | ||
| } | ||
| if timeoutInter, ok := c.params["timeout"]; ok { | ||
| timeout, ok = timeoutInter.(string) | ||
| } | ||
| // sanity check env vars | ||
| envVars := map[string]string{} | ||
| for _, envVar := range env { | ||
| sp := strings.Split(envVar, "=") | ||
| if len(sp) != 2 { | ||
| return result, fmt.Errorf("invalid env var %s; vars must be key=value pairs", envVar) | ||
| } | ||
| envVars[sp[0]] = sp[1] | ||
| } | ||
| ttimeout, err := time.ParseDuration(timeout) | ||
| if err != nil { | ||
| return result, errors.Join(err, fmt.Errorf("invalid timeout %s; must be a valid duration", timeout)) | ||
| } | ||
| timeoutCTX, cancel := context.WithTimeout(ctx, ttimeout) | ||
| defer cancel() | ||
| command := exec.CommandContext(timeoutCTX, splitCmd[0], args...) | ||
| if runas != "" && runtime.GOOS != "windows" { | ||
| u, err := user.Lookup(runas) | ||
| if err != nil { | ||
| return result, errors.Join(err, fmt.Errorf("invalid user %s; user must exist", runas)) | ||
| } | ||
| uid64, err := strconv.Atoi(u.Uid) | ||
| if err != nil { | ||
| return result, errors.Join(err, fmt.Errorf("invalid user %s; user must exist", runas)) | ||
| } | ||
| if uid64 > math.MaxInt32 { | ||
| return result, fmt.Errorf("UID %d is invalid", uid64) | ||
| } | ||
| uid := uint32(uid64) | ||
| command.SysProcAttr = &syscall.SysProcAttr{} | ||
| command.SysProcAttr.Credential = &syscall.Credential{Uid: uid} | ||
| } | ||
| if path != "" { | ||
| command.Path = path | ||
| } | ||
| if cwd != "" { | ||
| command.Dir = cwd | ||
| } | ||
| if len(envVars) > 0 { | ||
| command.Env = []string{} | ||
| for _, v := range env { | ||
| command.Env = append(command.Env, v) | ||
| } | ||
| } | ||
| if test { | ||
| result.Notes = append(result.Notes, | ||
| types.SimpleNote("Command would have been run")) | ||
| return result, nil | ||
| } | ||
|
|
||
| out, err := command.CombinedOutput() | ||
| result.Notes = append(result.Notes, | ||
| types.SimpleNote(fmt.Sprintf("Command output: %s", string(out))), | ||
| ) | ||
|
|
||
| if err != nil { | ||
| result.Notes = append(result.Notes, | ||
| types.SimpleNote(fmt.Sprintf("Command failed: %s", err.Error()))) | ||
| } | ||
| if command.ProcessState.ExitCode() != 0 { | ||
| result.Succeeded = false | ||
| result.Failed = true | ||
| } else { | ||
| result.Succeeded = true | ||
| result.Failed = false | ||
| } | ||
| return result, nil | ||
| } |
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