feat: recipe reset, recipe diff

See coop-cloud/organising#511

cli/recipe/diff.go

@@ -0,0 +1,61 @@
+package recipe
+
+import (
+	"fmt"
+	"os/exec"
+	"path"
+
+	"coopcloud.tech/abra/cli/internal"
+	"coopcloud.tech/abra/pkg/autocomplete"
+	"coopcloud.tech/abra/pkg/config"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli"
+)
+
+// getGitDiffArgs builds the `git diff` invocation args
+func getGitDiffArgs(repoPath string) []string {
+	return []string{
+		"-C",
+		repoPath,
+		"--no-pager",
+		"-c",
+		"color.diff=always",
+		"diff",
+	}
+}
+
+var recipeDiffCommand = cli.Command{
+	Name:        "diff",
+	Usage:       "Show unstaged changes in recipe config",
+	Description: "Due to limitations in our underlying Git dependency, this command requires /usr/bin/git.",
+	Aliases:     []string{"d"},
+	ArgsUsage:   "<recipe>",
+	Flags: []cli.Flag{
+		internal.DebugFlag,
+		internal.NoInputFlag,
+	},
+	Before:       internal.SubCommandBefore,
+	BashComplete: autocomplete.RecipeNameComplete,
+	Action: func(c *cli.Context) error {
+		recipeName := c.Args().First()
+
+		if recipeName != "" {
+			internal.ValidateRecipe(c)
+		}
+
+		_, err := exec.LookPath("git")
+		if err != nil {
+			logrus.Fatal("unable to locate 'git' command?")
+		}
+
+		gitDiffArgs := getGitDiffArgs(path.Join(config.RECIPES_DIR, recipeName))
+		diff, err := exec.Command("git", gitDiffArgs...).Output()
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		fmt.Print(string(diff))
+
+		return nil
+	},
+}