Initial commit

helper.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/urfave/cli/v2"
+	"lure.sh/lure/internal/cpu"
+	"lure.sh/lure/internal/shutils/helpers"
+	"lure.sh/lure/pkg/distro"
+	"lure.sh/lure/pkg/loggerctx"
+	"mvdan.cc/sh/v3/expand"
+	"mvdan.cc/sh/v3/interp"
+)
+
+var helperCmd = &cli.Command{
+	Name:        "helper",
+	Usage:       "Run a LURE helper command",
+	ArgsUsage:   `<helper_name|"list">`,
+	Subcommands: []*cli.Command{helperListCmd},
+	Flags: []cli.Flag{
+		&cli.StringFlag{
+			Name:    "dest-dir",
+			Aliases: []string{"d"},
+			Usage:   "The directory that the install commands will install to",
+			Value:   "dest",
+		},
+	},
+	Action: func(c *cli.Context) error {
+		ctx := c.Context
+		log := loggerctx.From(ctx)
+
+		if c.Args().Len() < 1 {
+			cli.ShowSubcommandHelpAndExit(c, 1)
+		}
+
+		helper, ok := helpers.Helpers[c.Args().First()]
+		if !ok {
+			log.Fatal("No such helper command").Str("name", c.Args().First()).Send()
+		}
+
+		wd, err := os.Getwd()
+		if err != nil {
+			log.Fatal("Error getting working directory").Err(err).Send()
+		}
+
+		info, err := distro.ParseOSRelease(ctx)
+		if err != nil {
+			log.Fatal("Error getting working directory").Err(err).Send()
+		}
+
+		hc := interp.HandlerContext{
+			Env: expand.ListEnviron(
+				"pkgdir="+c.String("dest-dir"),
+				"DISTRO_ID="+info.ID,
+				"DISTRO_ID_LIKE="+strings.Join(info.Like, " "),
+				"ARCH="+cpu.Arch(),
+			),
+			Dir:    wd,
+			Stdin:  os.Stdin,
+			Stdout: os.Stdout,
+			Stderr: os.Stderr,
+		}
+
+		return helper(hc, c.Args().First(), c.Args().Slice()[1:])
+	},
+	CustomHelpTemplate: cli.CommandHelpTemplate,
+	BashComplete: func(ctx *cli.Context) {
+		for name := range helpers.Helpers {
+			fmt.Println(name)
+		}
+	},
+}
+
+var helperListCmd = &cli.Command{
+	Name:    "list",
+	Usage:   "List all the available helper commands",
+	Aliases: []string{"ls"},
+	Action: func(ctx *cli.Context) error {
+		for name := range helpers.Helpers {
+			fmt.Println(name)
+		}
+		return nil
+	},
+}