railpack

1package cli2 3import (4	"bytes"5	"context"6	"encoding/json"7	"fmt"8	"os"9	"path/filepath"10 11	"github.com/charmbracelet/log"12	"github.com/railwayapp/railpack/core"13	"github.com/urfave/cli/v3"14)15 16var InfoCommand = &cli.Command{17	Name:                  "info",18	Aliases:               []string{"i"},19	Usage:                 "get as much information as possible about an app",20	ArgsUsage:             "DIRECTORY",21	EnableShellCompletion: true,22	Flags: append([]cli.Flag{23		&cli.StringFlag{24			Name:  "format",25			Usage: "output format. one of: pretty, json",26			Value: "pretty",27		},28		&cli.StringFlag{29			Name:  "out",30			Usage: "output file name",31		},32		&cli.BoolFlag{33			Name:  "show-plan",34			Usage: "show the generated build plan",35		},36	}, commonPlanFlags()...),37	Action: func(ctx context.Context, cmd *cli.Command) error {38		buildResult, _, _, err := GenerateBuildResultForCommand(cmd)39		if err != nil {40			return cli.Exit(err, exitCodeForError(err))41		}42 43		format := cmd.String("format")44 45		var rendered bytes.Buffer46		if format == "pretty" {47			rendered.WriteString(core.FormatBuildResult(buildResult, core.PrintOptions{48				Metadata: true,49				Version:  Version,50			}))51 52			if cmd.Bool("show-plan") {53				planMap, err := addSchemaToPlanMap(buildResult.Plan)54				if err != nil {55					return cli.Exit(err, ExitCodeFailure)56				}57				serializedPlan, err := json.MarshalIndent(planMap, "", "  ")58				if err != nil {59					return cli.Exit(err, ExitCodeFailure)60				}61 62				core.PrettyPrintSectionHeader(&rendered, "Generated railpack-plan.json")63				core.PrettyPrintJSON(&rendered, serializedPlan)64			} else {65				fmt.Fprintf(66					&rendered,67					"Use %s to view generated railpack-plan.json\n",68					core.FormatHighlight("--show-plan"),69				)70			}71		} else {72			serializedResult, err := json.MarshalIndent(buildResult, "", "  ")73			if err != nil {74				return cli.Exit(err, ExitCodeFailure)75			}76			fmt.Fprintln(&rendered, string(serializedResult))77		}78 79		output := cmd.String("out")80		if output == "" {81			// Write to stdout if no output file specified82			_, _ = os.Stdout.Write(rendered.Bytes())83			return nil84		} else {85			if err := os.MkdirAll(filepath.Dir(output), 0755); err != nil {86				return cli.Exit(err, ExitCodeFailure)87			}88 89			err = os.WriteFile(output, rendered.Bytes(), 0644)90			if err != nil {91				return cli.Exit(err, ExitCodeFailure)92			}93 94			log.Infof("Plan written to %s", output)95		}96 97		if !buildResult.Success {98			os.Exit(ExitCodeFailure)99			return nil100		}101 102		return nil103	},104}105