Add a direct link from repo header to unit settings

If a repository administrator is viewing a repository, and there are
units that can be enabled, display an "Add more..." link that leads to
the repository unit settings page.

The goal here is to allow instances to configure a small set of repo
units to be enabled by default, but also highlight for repo admins that
they can add more.

Signed-off-by: Gergely Nagy <forgejo@gergo.csillger.hu>

modules/context/repo.go

@@ -81,6 +81,31 @@ func (r *Repository) CanCreateBranch() bool {
 	return r.Permission.CanWrite(unit_model.TypeCode) && r.Repository.CanCreateBranch()
 }
 
+// AllUnitsEnabled returns true if all units are enabled for the repo.
+func (r *Repository) AllUnitsEnabled(ctx context.Context) bool {
+	hasAnyUnitEnabled := func(unitGroup []unit_model.Type) bool {
+		// Loop over the group of units
+		for _, unit := range unitGroup {
+			// If *any* of them is enabled, return true.
+			if r.Repository.UnitEnabled(ctx, unit) {
+				return true
+			}
+		}
+
+		// If none are enabled, return false.
+		return false
+	}
+
+	for _, unitGroup := range unit_model.AllowedRepoUnitGroups {
+		// If any disabled unit is found, return false immediately.
+		if !hasAnyUnitEnabled(unitGroup) {
+			return false
+		}
+	}
+
+	return true
+}
+
 // RepoMustNotBeArchived checks if a repo is archived
 func RepoMustNotBeArchived() func(ctx *Context) {
 	return func(ctx *Context) {
@@ -1053,6 +1078,7 @@ func RepoRefByType(refType RepoRefType, ignoreNotExistErr ...bool) func(*Context
 		ctx.Data["IsViewTag"] = ctx.Repo.IsViewTag
 		ctx.Data["IsViewCommit"] = ctx.Repo.IsViewCommit
 		ctx.Data["CanCreateBranch"] = ctx.Repo.CanCreateBranch()
+		ctx.Data["AllUnitsEnabled"] = ctx.Repo.AllUnitsEnabled(ctx)
 
 		ctx.Repo.CommitsCount, err = ctx.Repo.GetCommitsCount()
 		if err != nil {