feat: add an command to delete an entry from DB (#152)

* feat: add an command to delete an entry from DB

Fix #151

* test: add tests for frecency:delete()

* docs: add note for FrecencyDB

lua/frecency/database/native.lua

@@ -196,4 +196,17 @@ function Native:raw_save(tbl)
   assert(not async.uv.fs_close(fd))
 end
 
+---@param path string
+---@return boolean
+function Native:remove_entry(path)
+  if not self.table.records[path] then
+    return false
+  end
+  self.table.records[path] = nil
+  wait(function()
+    self:save()
+  end)
+  return true
+end
+
 return Native

lua/frecency/database/sqlite.lua

@@ -145,4 +145,11 @@ function Sqlite:remove_files(ids)
   self.sqlite.files:remove { id = ids }
 end
 
+---@param path string
+---@return boolean
+function Sqlite:remove_entry(path)
+  local exists = not not self.sqlite.files:get({ where = { path = path } })[1]
+  return exists and self.sqlite.files:remove { path = path } or false
+end
+
 return Sqlite