require('gitsigns').setup {
    on_attach = function(bufnr)
        local gitsigns = require('gitsigns')

        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
                vim.cmd.normal({ ']c', bang = true })
            else
                gitsigns.nav_hunk('next')
            end
        end)

        map('n', '[c', function()
            if vim.wo.diff then
                vim.cmd.normal({ '[c', bang = true })
            else
                gitsigns.nav_hunk('prev')
            end
        end)

        map('n', '<leader>gb', function()
            gitsigns.blame({ full = true })
        end)

        map('n', '<leader>hd', gitsigns.diffthis)

        map('n', '<leader>hD', function()
            gitsigns.diffthis('~')
        end)

        map('n', '<leader>hQ', function() gitsigns.setqflist('all') end)
        map('n', '<leader>hq', gitsigns.setqflist)

        -- Text object
        map({ 'o', 'x' }, 'ih', gitsigns.select_hunk)
    end
}