feat: config option for trashing deleted files (#99)

lua/oil/adapters/files.lua

@@ -3,6 +3,7 @@ local columns = require("oil.columns")
 local config = require("oil.config")
 local fs = require("oil.fs")
 local permissions = require("oil.adapters.files.permissions")
+local trash = require("oil.adapters.files.trash")
 local util = require("oil.util")
 local FIELD = require("oil.constants").FIELD
 local M = {}
@@ -384,7 +385,11 @@ M.perform_action = function(action, cb)
   elseif action.type == "delete" then
     local _, path = util.parse_url(action.url)
     path = fs.posix_to_os_path(path)
-    fs.recursive_delete(action.entry_type, path, cb)
+    if config.delete_to_trash then
+      trash.recursive_delete(path, cb)
+    else
+      fs.recursive_delete(action.entry_type, path, cb)
+    end
   elseif action.type == "move" then
     local dest_adapter = config.get_adapter_by_scheme(action.dest_url)
     if dest_adapter == M then

lua/oil/adapters/files/trash.lua

@@ -0,0 +1,37 @@
+local M = {}
+
+M.recursive_delete = function(path, cb)
+  local stdout = {}
+  local stderr = {}
+  local jid = vim.fn.jobstart({ "trash-put", path }, {
+    stdout_buffered = true,
+    stderr_buffered = true,
+    on_stdout = function(j, output)
+      stdout = output
+    end,
+    on_stderr = function(j, output)
+      stderr = output
+    end,
+    on_exit = function(j, exit_code)
+      if exit_code == 0 then
+        cb()
+      else
+        cb(
+          string.format(
+            "Error moving '%s' to trash:\n  stdout: %s\n  stderr: %s",
+            path,
+            table.concat(stdout, "\n  "),
+            table.concat(stderr, "\n  ")
+          )
+        )
+      end
+    end,
+  })
+  if jid == 0 then
+    cb(string.format("Passed invalid argument '%s' to 'trash-put'", path))
+  elseif jid == -1 then
+    cb("'trash-put' is not executable")
+  end
+end
+
+return M