railpack

1package cli2 3import (4	"encoding/json"5	"fmt"6 7	"github.com/charmbracelet/log"8	"github.com/railwayapp/railpack/core"9	a "github.com/railwayapp/railpack/core/app"10	"github.com/railwayapp/railpack/core/config"11	"github.com/railwayapp/railpack/core/mise"12	"github.com/railwayapp/railpack/core/plan"13	"github.com/railwayapp/railpack/internal/utils"14	"github.com/urfave/cli/v3"15)16 17var Version string // This will be set by main18 19const (20	// the command failed for a reason that will not change on a retry21	ExitCodeFailure = 122 23	// EX_TEMPFAIL: the command failed for a transient reason (e.g. a network error24	// downloading mise) and is worth retrying. Platforms that run Railpack in a25	// build pipeline key their retry logic on this.26	ExitCodeTransient = 7527)28 29func exitCodeForError(err error) int {30	if mise.IsTemporary(err) {31		return ExitCodeTransient32	}33 34	return ExitCodeFailure35}36 37func commonPlanFlags() []cli.Flag {38	return []cli.Flag{39		&cli.StringSliceFlag{40			Name:    "env",41			Aliases: []string{"e"},42			Usage:   "environment variables to set",43		},44		&cli.StringSliceFlag{45			Name:  "previous",46			Usage: "versions of packages used for previous builds (e.g. 'package@version')",47		},48		&cli.StringFlag{49			Name:  "build-cmd",50			Usage: "build command to use",51		},52		&cli.StringFlag{53			Name:  "start-cmd",54			Usage: "start command to use",55		},56		&cli.StringFlag{57			Name:  "config-file",58			Usage: "relative path to railpack config file (default: railpack.json)",59		},60		&cli.BoolFlag{61			Name:  "error-missing-start",62			Usage: "error if no start command is found",63		},64	}65}66 67func GenerateBuildResultForCommand(cmd *cli.Command) (*core.BuildResult, *a.App, *a.Environment, error) {68	directory := cmd.Args().First()69 70	if directory == "" {71		return nil, nil, nil, cli.Exit("directory argument is required", ExitCodeFailure)72	}73 74	app, err := a.NewApp(directory)75	if err != nil {76		return nil, nil, nil, fmt.Errorf("error creating app: %w", err)77	}78 79	log.Debugf("Building %s", app.Source)80 81	envsArgs := cmd.StringSlice("env")82 83	env, err := a.FromEnvs(envsArgs)84	if err != nil {85		return nil, nil, nil, fmt.Errorf("error creating env: %w", err)86	}87 88	// if --verbose is passed as a CLI global argument, enable verbose mise logging so the user don't have to understand89	// the railpack build system deeply to get this debugging information.90	if cmd.Bool("verbose") && env.GetVariable("MISE_VERBOSE") == "" {91		env.SetVariable("MISE_VERBOSE", "1")92	}93 94	previousVersions := utils.ParsePackageWithVersion(cmd.StringSlice("previous"))95 96	generateOptions := &core.GenerateBuildPlanOptions{97		RailpackVersion:          Version,98		BuildCommand:             cmd.String("build-cmd"),99		StartCommand:             cmd.String("start-cmd"),100		PreviousVersions:         previousVersions,101		ConfigFilePath:           cmd.String("config-file"),102		ErrorMissingStartCommand: cmd.Bool("error-missing-start"),103	}104 105	buildResult, err := core.GenerateBuildPlan(app, env, generateOptions)106	if err != nil {107		return nil, nil, nil, err108	}109 110	return buildResult, app, env, nil111}112 113// add $schema link to resulting map JSON for improved IDE experience when manually editing114func addSchemaToPlanMap(p *plan.BuildPlan) (map[string]any, error) {115	if p == nil {116		return map[string]any{"$schema": config.SchemaUrl}, nil117	}118	planBytes, err := json.Marshal(p)119	if err != nil {120		return nil, err121	}122	var planMap map[string]any123	if err := json.Unmarshal(planBytes, &planMap); err != nil {124		return nil, err125	}126	planMap["$schema"] = config.SchemaUrl127	return planMap, nil128}129