feat: :Oil --trash can open specific trash directories

doc/oil.txt

@@ -407,7 +407,7 @@ toggle_hidden                                              *actions.toggle_hidde
     Toggle hidden files and directories
 
 toggle_trash                                                *actions.toggle_trash*
-    Jump back and forth the trash for the current directory
+    Jump to and from the trash for the current directory
 
 --------------------------------------------------------------------------------
 HIGHLIGHTS                                                        *oil-highlights*
@@ -466,7 +466,7 @@ Oil has built-in support for using the system trash. When
 `delete_to_trash = true`, any deleted files will be sent to the trash instead
 of being permanently deleted. You can browse the trash for a directory using
 the `toggle_trash` action (bound to `g\` by default). You can view all files
-in the trash with `:Oil --trash`.
+in the trash with `:Oil --trash /`.
 
 To restore files, simply delete them from the trash and put them in the desired
 destination, the same as any other file operation. If you delete files from the

lua/oil/init.lua

@@ -150,9 +150,13 @@ end
 ---Get the oil url for a given directory
 ---@private
 ---@param dir nil|string When nil, use the cwd
----@return nil|string The parent url
+---@param use_oil_parent nil|boolean If in an oil buffer, return the parent (default true)
+---@return string The parent url
 ---@return nil|string The basename (if present) of the file/dir we were just in
-M.get_url_for_path = function(dir)
+M.get_url_for_path = function(dir, use_oil_parent)
+  if use_oil_parent == nil then
+    use_oil_parent = true
+  end
   local config = require("oil.config")
   local fs = require("oil.fs")
   local util = require("oil.util")
@@ -169,15 +173,16 @@ M.get_url_for_path = function(dir)
     return config.adapter_to_scheme.files .. path
   else
     local bufname = vim.api.nvim_buf_get_name(0)
-    return M.get_buffer_parent_url(bufname)
+    return M.get_buffer_parent_url(bufname, use_oil_parent)
   end
 end
 
 ---@private
 ---@param bufname string
+---@param use_oil_parent boolean If in an oil buffer, return the parent
 ---@return string
 ---@return nil|string
-M.get_buffer_parent_url = function(bufname)
+M.get_buffer_parent_url = function(bufname, use_oil_parent)
   local config = require("oil.config")
   local fs = require("oil.fs")
   local pathutil = require("oil.pathutil")
@@ -202,6 +207,9 @@ M.get_buffer_parent_url = function(bufname)
       return config.adapter_to_scheme.files .. util.addslash(path)
     end
 
+    if not use_oil_parent then
+      return bufname
+    end
     local adapter = config.get_adapter_by_scheme(scheme)
     local parent_url
     if adapter and adapter.get_parent then
@@ -834,6 +842,7 @@ M.setup = function(opts)
   config.setup(opts)
   set_colors()
   vim.api.nvim_create_user_command("Oil", function(args)
+    local util = require("oil.util")
     if args.smods.tab == 1 then
       vim.cmd.tabnew()
     end
@@ -864,7 +873,9 @@ M.setup = function(opts)
     local method = float and "open_float" or "open"
     local path = args.fargs[1]
     if trash then
-      path = "oil-trash:///"
+      local url = M.get_url_for_path(path, false)
+      local _, new_path = util.parse_url(url)
+      path = "oil-trash://" .. new_path
     end
     M[method](path)
   end, { desc = "Open oil file browser on a directory", nargs = "*", complete = "dir" })

scripts/generate.py

@@ -240,7 +240,7 @@ def get_trash_vimdoc() -> "VimdocSection":
 `delete_to_trash = true`, any deleted files will be sent to the trash instead
 of being permanently deleted. You can browse the trash for a directory using
 the `toggle_trash` action (bound to `g\\` by default). You can view all files
-in the trash with `:Oil --trash`.
+in the trash with `:Oil --trash /`.
 
 To restore files, simply delete them from the trash and put them in the desired
 destination, the same as any other file operation. If you delete files from the

tests/url_spec.lua

@@ -13,7 +13,7 @@ describe("url", function()
     }
     for _, case in ipairs(cases) do
       local input, expected, expected_basename = unpack(case)
-      local output, basename = oil.get_buffer_parent_url(input)
+      local output, basename = oil.get_buffer_parent_url(input, true)
       assert.equals(expected, output, string.format('Parent url for path "%s" failed', input))
       assert.equals(
         expected_basename,