rake 路径会产生奇怪的字符并中断`|少`

Question

我正在尝试这样做：

rake routes | less

但它会产生以下奇怪的字符，并破坏less，使其无法正确搜索或响应。这是新的，已经使用了几年了。我的系统上的某些内容已更改，但我不知道如何停止或更改它！我怎样才能避免这个问题？

^[[1m^[[36mSQL (0.7ms)^[[0m  ^[[1mdescribe `roles_users`^[[0m                                                                                                                                               
  ^[[1m^[[35mSQL (0.9ms)^[[0m  describe `teams_users`
  ^[[1m^[[36mSQL (1.0ms)^[[0m  ^[[1mdescribe `instructors_media_clips`^[[0m
  ^[[1m^[[35mSQL (0.7ms)^[[0m  describe `collections_packs`
  ^[[1m^[[36mSQL (0.7ms)^[[0m  ^[[1mdescribe `lessons_songs`^[[0m
  ^[[1m^[[35mSQL (0.9ms)^[[0m  describe `media_clips_packs`
  ^[[1m^[[36mSQL (0.9ms)^[[0m  ^[[1mdescribe `instructors_media_clips`^[[0m
  ^[[1m^[[35mSQL (1.0ms)^[[0m  describe `related_media_clips`
  ^[[1m^[[36mSQL (0.7ms)^[[0m  ^[[1mdescribe `lesson_instructors`^[[0m
  ^[[1m^[[35mSQL (0.8ms)^[[0m  describe `collections_packs`
  ^[[1m^[[36mSQL (0.6ms)^[[0m  ^[[1mdescribe `media_clips_packs`^[[0m
  ^[[1m^[[35mSQL (0.8ms)^[[0m  describe `roles_users`
  ^[[1m^[[36mSQL (0.7ms)^[[0m  ^[[1mdescribe `lessons_songs`^[[0m
  ^[[1m^[[35mSQL (0.8ms)^[[0m  describe `teams_users`
                  admin_admin_main GET    /admin/admin/main(.:format)                   {:controller=>"admin", :action=>"index"}
                  new_user_session GET    /:locale/members/sign_in(.:format)            {:controller=>"sessions", :action=>"new"}
                      user_session POST   /:locale/members/sign_in(.:format)            {:controller=>"sessions", :action=>"create"}
              destroy_user_session GET    /:locale/members/sign_out(.:format)           {:controller=>"sessions", :action=>"destroy"}
                     user_password POST   /:locale/members/password(.:format)           {:controller=>"devise/passwords", :action=>"create"}
                 new_user_password GET    /:locale/members/password/new(.:format)       {:controller=>"devise/passwords", :action=>"new"}
                edit_user_password GET    /:locale/members/password/edit(.:format)      {:controller=>"devise/passwords", :action=>"edit"}
                                   PUT    /:locale/members/password(.:format)           {:controller=>"devise/passwords", :action=>"update"}
          cancel_user_registration GET    /:locale/members/cancel(.:format)             {:controller=>"registrations", :action=>"cancel"}
                 user_registration POST   /:locale/members(.:format)                    {:controller=>"registrations", :action=>"create"}
             new_user_registration GET    /:locale/members/sign_up(.:format)            {:controller=>"registrations", :action=>"new"}
            edit_user_registration GET    /:locale/members/edit(.:format)               {:controller=>"registrations", :action=>"edit"}
                                   PUT    /:locale/members(.:format)                    {:controller=>"registrations", :action=>"update"}
                                   DELETE /:locale/members(.:format)                    {:controller=>"registrations", :action=>"destroy"}
                     profile_users GET    /:locale/users/profile(.:format)              {:controller=>"users", :action=>"profile"}
                             users GET    /:locale/users(.:format)                      {:controller=>"users", :action=>"index"}
                                   POST   /:locale/users(.:format)                      {:controller=>"users", :action=>"create"}
                          new_user GET    /:locale/users/new(.:format)                  {:controller=>"users", :action=>"new"}
                         edit_user GET    /:locale/users/:id/edit(.:format)             {:controller=>"users", :action=>"edit"}
                              user GET    /:locale/users/:id(.:format)                  {:controller=>"users", :action=>"show"}
                                   PUT    /:locale/users/:id(.:format)                  {:controller=>"users", :action=>"update"}
                                   DELETE /:locale/users/:id(.:format)                  {:controller=>"users", :action=>"destroy"}
                             roles GET    /:locale/roles(.:format)                      {:controller=>"roles", :action=>"index"}
                                   POST   /:locale/roles(.:format)                      {:controller=>"roles", :action=>"create"}

Answer 1

这些看起来像 ANSI 颜色转义序列。就好像 less 没有正确解释序列一样。您确定您没有使用任何更少的选项吗？也许有一些选项，例如 less -R 或 less --RAW-CONTROL-CHARS。我承认我对 ANSI 颜色转义序列了解不多。

Answer 2

Jared 正确地说您需要使用 less -R 来解释颜色序列。

就失去对 less 导航的控制而言，我不认为这是由 rake 引起的，而是由 Rails 中尝试从 STDIN 读取的内容引起的。

要解决此问题，请重定向 STDIN：

rake routes </dev/null | less