neovim: add keybinding to open commit under cursor in floating window

neovim/.config/nvim/lua/daniil/utils.lua

@@ -0,0 +1,43 @@
+local M = {}
+
+---@return number width, number height
+function M.get_terminal_size()
+  local width = vim.o.columns
+  local height = vim.o.lines
+  return width, height
+end
+
+---@param width number width in percentage of screen width (0.75, 0.5, etc)
+---@param height number height in percentage of screen height (0.75, 0.5, etc)
+---@return number buffer, number window
+function M.create_floating_window_in_center(width, height)
+  local bufnr = vim.api.nvim_create_buf(false, true) -- not listed, scratch buffer
+
+  local max_width, max_height = M.get_terminal_size()
+  local win_width = math.floor(max_width * width)
+  local win_height = math.floor(max_height * height)
+
+  local winnr = vim.api.nvim_open_win(bufnr, true, {
+    relative = "editor",
+    width = win_width,
+    height = win_height,
+    row = (max_height - win_height) / 2,
+    col = (max_width - win_width) / 2,
+    focusable = true,
+    style = "minimal",
+  })
+
+  return bufnr, winnr
+end
+
+---@param bufnr number
+---@param content string
+function M.set_buffer_text(bufnr, content)
+  local lines = {}
+  for s in content:gmatch("[^\r\n]+") do
+    table.insert(lines, s)
+  end
+  vim.api.nvim_buf_set_lines(bufnr, 0, vim.tbl_count(lines), false, lines)
+end
+
+return M