telescope-frecency.nvim/lua/telescope/_extensions/frecency.lua
JINNOUCHI Yasushi dde0b71e40
feat: access to DB as lazily as possible (#180)
* fix: fix prop attributes and names

* feat: load DB as lazily as possible

* fix: move util function to test module

* feat: use one coroutine to access DB

* test: fix to wait the table to be ready

* fix: avoid race conditions

Before this, it can run require("frecency").new() duplicatedly to wait
until frecency:setup() finishes.
2024-03-21 16:23:45 +09:00

88 lines
3.2 KiB
Lua

---This object is intended to be used as a singleton, and is lazily loaded.
---When methods are called at the first time, it calls the constructor and
---setup() to be initialized.
---@class FrecencyInstance
---@field complete fun(findstart: 1|0, base: string): integer|''|string[]
---@field delete fun(path: string): nil
---@field register fun(bufnr: integer, datetime: string?): nil
---@field start fun(opts: FrecencyPickerOptions?): nil
---@field validate_database fun(force: boolean?): nil
local frecency = setmetatable({}, {
---@param self FrecencyInstance
---@param key "complete"|"delete"|"register"|"start"|"validate_database"
---@return function
__index = function(self, key)
---@return Frecency
local function instance()
return rawget(self, "instance")
end
return function(...)
if not instance() then
rawset(self, "instance", require("frecency").new())
instance():setup()
end
return instance()[key](instance(), ...)
end
end,
})
return require("telescope").register_extension {
exports = {
frecency = frecency.start,
complete = frecency.complete,
},
---When this func is called, Frecency instance is NOT created but only
---configuration is done.
setup = function(ext_config)
require("frecency.config").setup(ext_config)
vim.api.nvim_set_hl(0, "TelescopeBufferLoaded", { link = "String", default = true })
vim.api.nvim_set_hl(0, "TelescopePathSeparator", { link = "Directory", default = true })
vim.api.nvim_set_hl(0, "TelescopeFrecencyScores", { link = "Number", default = true })
vim.api.nvim_set_hl(0, "TelescopeQueryFilter", { link = "WildMenu", default = true })
---@param cmd_info { bang: boolean }
vim.api.nvim_create_user_command("FrecencyValidate", function(cmd_info)
frecency.validate_database(cmd_info.bang)
end, { bang = true, desc = "Clean up DB for telescope-frecency" })
vim.api.nvim_create_user_command("FrecencyDelete", function(info)
local path_string = info.args == "" and "%:p" or info.args
local path = vim.fn.expand(path_string) --[[@as string]]
frecency.delete(path)
end, { nargs = "?", complete = "file", desc = "Delete entry from telescope-frecency" })
local group = vim.api.nvim_create_augroup("TelescopeFrecency", {})
vim.api.nvim_create_autocmd({ "BufWinEnter", "BufWritePost" }, {
desc = "Update database for telescope-frecency",
group = group,
---@param args { buf: integer }
callback = function(args)
local is_floatwin = vim.api.nvim_win_get_config(0).relative ~= ""
if not is_floatwin then
frecency.register(args.buf)
end
end,
})
end,
health = function()
if vim.F.npcall(require, "nvim-web-devicons") then
vim.health.ok "nvim-web-devicons installed."
else
vim.health.info "nvim-web-devicons is not installed."
end
if vim.fn.executable "rg" == 1 then
vim.health.ok "ripgrep installed."
elseif vim.fn.executable "fdfind" == 1 then
vim.health.ok "fdfind installed."
elseif vim.fn.executable "fd" == 1 then
vim.health.ok "fd installed."
else
vim.health.info "No suitable find executable found."
end
end,
}