1 files changed, 50 insertions, 0 deletions

diff --git a/.config/nvim/lua/au.lua b/.config/nvim/lua/au.lua
new file mode 100644
index 0000000..305169c
--- /dev/null
+++ b/.config/nvim/lua/au.lua
@@ -0,0 +1,50 @@
+--
+-- https://gist.github.com/numToStr/1ab83dd2e919de9235f9f774ef8076da
+--
+local cmd = vim.api.nvim_command
+
+local function autocmd(this, event, spec)
+    local is_table = type(spec) == 'table'
+    local pattern = is_table and spec[1] or '*'
+    local action = is_table and spec[2] or spec
+    if type(action) == 'function' then
+        action = this.set(action)
+    end
+    local e = type(event) == 'table' and table.concat(event, ',') or event
+    cmd('autocmd ' .. e .. ' ' .. pattern .. ' ' .. action)
+end
+
+local S = {
+    __au = {},
+}
+
+local X = setmetatable({}, {
+    __index = S,
+    __newindex = autocmd,
+    __call = autocmd,
+})
+
+function S.exec(id)
+    S.__au[id]()
+end
+
+function S.set(fn)
+    local id = string.format('%p', fn)
+    S.__au[id] = fn
+    return string.format('lua require("au").exec("%s")', id)
+end
+
+function S.group(grp, cmds)
+    cmd('augroup ' .. grp)
+    cmd('autocmd!')
+    if type(cmds) == 'function' then
+        cmds(X)
+    else
+        for _, au in ipairs(cmds) do
+            autocmd(S, au[1], { au[2], au[3] })
+        end
+    end
+    cmd('augroup END')
+end
+
+return X