jdhao-nvim-config/lua/config/gitsigns.lua

local gs = require("gitsigns")

gs.setup {
  signs = {
    add = { hl = "GitSignsAdd", text = "+", numhl = "GitSignsAddNr", linehl = "GitSignsAddLn" },
    change = { hl = "GitSignsChange", text = "~", numhl = "GitSignsChangeNr", linehl = "GitSignsChangeLn" },
    delete = { hl = "GitSignsDelete", text = "_", numhl = "GitSignsDeleteNr", linehl = "GitSignsDeleteLn" },
    topdelete = { hl = "GitSignsDelete", text = "‾", numhl = "GitSignsDeleteNr", linehl = "GitSignsDeleteLn" },
    changedelete = { hl = "GitSignsChange", text = "│", numhl = "GitSignsChangeNr", linehl = "GitSignsChangeLn" },
  },
  on_attach = function(bufnr)
    local function map(mode, l, r, opts)
      opts = opts or {}
      opts.buffer = bufnr
      vim.keymap.set(mode, l, r, opts)
    end

    -- Navigation
    map("n", "]c", function()
      if vim.wo.diff then
        return "]c"
      end
      vim.schedule(function()
        gs.next_hunk()
      end)
      return "<Ignore>"
    end, { expr = true, desc = "next hunk" })

    map("n", "[c", function()
      if vim.wo.diff then
        return "[c"
      end
      vim.schedule(function()
        gs.prev_hunk()
      end)
      return "<Ignore>"
    end, { expr = true, desc = "previous hunk" })

    -- Actions
    map("n", "<leader>hp", gs.preview_hunk)
    map("n", "<leader>hb", function()
      gs.blame_line { full = true }
    end)
  end,
}