feat(repos): add 'repos settings' subcommand for feature toggles and merge policy

Adds a new 'repos settings' (alias: config) subcommand that complements
the existing 'repos edit' command:

- 'repos edit'   - basic properties (name, description, website,
                   private/template/archived, default-branch)
- 'repos settings' - feature toggles (issues, wiki, pulls, projects,
                     releases, packages, actions) and merge policy
                     (default style, allowed merge strategies)

The split keeps each command focused and avoids duplicating flags
already present on 'repos edit' (PR #928). Trying to set both
--enable-X and --disable-X in the same invocation will fail at the
Gitea API layer; the command emits a clear error if no changes are
requested.

cmd/repos.go

@@ -33,6 +33,7 @@ var CmdRepos = cli.Command{
 		&repos.CmdRepoMigrate,
 		&repos.CmdRepoRm,
 		&repos.CmdRepoEdit,
+		&repos.CmdReposSettings,
 	},
 	Flags: repos.CmdReposListFlags,
 }

cmd/repos/settings.go

@@ -0,0 +1,143 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repos
+
+import (
+	stdctx "context"
+	"errors"
+	"fmt"
+
+	gitea "gitea.dev/sdk"
+
+	"gitea.dev/tea/cmd/flags"
+	"gitea.dev/tea/modules/context"
+	"github.com/urfave/cli/v3"
+)
+
+// CmdReposSettings represents a sub command of repos to manage repository
+// feature toggles and merge policy settings.
+//
+// Note: basic repository properties (name, description, website, visibility,
+// archived, default branch) are handled by 'repos edit'. 'repos settings' is
+// for feature toggles and merge-policy configuration.
+var CmdReposSettings = cli.Command{
+	Name:        "settings",
+	Aliases:     []string{"config"},
+	Usage:       "Manage repository feature toggles and merge policy",
+	Description: "Toggle repository features (issues, wiki, pulls, projects, releases, packages, actions) and configure merge policy (default style, allowed merge strategies). For basic properties like name, description, and visibility, use 'repos edit'.",
+	Action:      runReposSettings,
+	Flags: append([]cli.Flag{
+		// Feature toggles
+		&cli.BoolFlag{Name: "enable-issues", Usage: "enable issues"},
+		&cli.BoolFlag{Name: "disable-issues", Usage: "disable issues"},
+		&cli.BoolFlag{Name: "enable-wiki", Usage: "enable wiki"},
+		&cli.BoolFlag{Name: "disable-wiki", Usage: "disable wiki"},
+		&cli.BoolFlag{Name: "enable-pull-requests", Usage: "enable pull requests"},
+		&cli.BoolFlag{Name: "disable-pull-requests", Usage: "disable pull requests"},
+		&cli.BoolFlag{Name: "enable-projects", Usage: "enable projects"},
+		&cli.BoolFlag{Name: "disable-projects", Usage: "disable projects"},
+		&cli.BoolFlag{Name: "enable-releases", Usage: "enable releases"},
+		&cli.BoolFlag{Name: "disable-releases", Usage: "disable releases"},
+		&cli.BoolFlag{Name: "enable-packages", Usage: "enable packages"},
+		&cli.BoolFlag{Name: "disable-packages", Usage: "disable packages"},
+		&cli.BoolFlag{Name: "enable-actions", Usage: "enable actions"},
+		&cli.BoolFlag{Name: "disable-actions", Usage: "disable actions"},
+
+		// Merge policy
+		&cli.StringFlag{
+			Name:  "default-merge-style",
+			Usage: "default merge style for pull requests (merge, rebase, rebase-merge, squash)",
+		},
+		&cli.BoolFlag{Name: "allow-merge-commits", Usage: "allow merge commits"},
+		&cli.BoolFlag{Name: "disallow-merge-commits", Usage: "disallow merge commits"},
+		&cli.BoolFlag{Name: "allow-rebase", Usage: "allow rebase merging"},
+		&cli.BoolFlag{Name: "disallow-rebase", Usage: "disallow rebase merging"},
+		&cli.BoolFlag{Name: "allow-squash", Usage: "allow squash merging"},
+		&cli.BoolFlag{Name: "disallow-squash", Usage: "disallow squash merging"},
+	}, flags.AllDefaultFlags...),
+}
+
+func runReposSettings(ctx stdctx.Context, cmd *cli.Command) error {
+	c, err := context.InitCommand(cmd)
+	if err != nil {
+		return err
+	}
+	if err := c.Ensure(context.CtxRequirement{RemoteRepo: true}); err != nil {
+		return err
+	}
+	client := c.Login.Client()
+
+	opt := gitea.EditRepoOption{}
+	hasChanges := false
+
+	// Feature toggles
+	if setBool(cmd, &opt.HasIssues, "enable-issues", "disable-issues") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.HasWiki, "enable-wiki", "disable-wiki") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.HasPullRequests, "enable-pull-requests", "disable-pull-requests") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.HasProjects, "enable-projects", "disable-projects") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.HasReleases, "enable-releases", "disable-releases") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.HasPackages, "enable-packages", "disable-packages") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.HasActions, "enable-actions", "disable-actions") {
+		hasChanges = true
+	}
+
+	// Default merge style
+	if cmd.IsSet("default-merge-style") {
+		style := gitea.MergeStyle(cmd.String("default-merge-style"))
+		opt.DefaultMergeStyle = &style
+		hasChanges = true
+	}
+
+	// Merge strategy toggles
+	if setBool(cmd, &opt.AllowMerge, "allow-merge-commits", "disallow-merge-commits") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.AllowRebase, "allow-rebase", "disallow-rebase") {
+		hasChanges = true
+	}
+	if setBool(cmd, &opt.AllowSquash, "allow-squash", "disallow-squash") {
+		hasChanges = true
+	}
+
+	if !hasChanges {
+		return errors.New("no settings changes specified; pass at least one --enable-* / --disable-* / --allow-* / --disallow-* flag, or --default-merge-style")
+	}
+
+	repo, _, err := client.EditRepo(ctx, c.Owner, c.Repo, opt)
+	if err != nil {
+		return err
+	}
+
+	fmt.Printf("Repository settings updated: %s/%s\n", repo.Owner.UserName, repo.Name)
+	return nil
+}
+
+// setBool applies a pair of mutually exclusive --enable-X / --disable-X
+// style flags to a *bool field on the EditRepoOption. Returns true if
+// either flag was set, in which case the field has been written.
+func setBool(cmd *cli.Command, field **bool, enableFlag, disableFlag string) bool {
+	if cmd.Bool(enableFlag) {
+		v := true
+		*field = &v
+		return true
+	}
+	if cmd.Bool(disableFlag) {
+		v := false
+		*field = &v
+		return true
+	}
+	return false
+}