Sample configuration

Below is a non-extensive list of tools you can use with Formatter.nvim. Since the plugin does not define formatters to run, you must specify them in your neovim config.

Prettier

Prettier can be configured for multiple filetypes, but the below config will use JavaScript as the example.

require('formatter').setup({
  filetype = {
    javascript = {
      -- prettier
      function()
        return {
          exe = "prettier",
          args = {"--stdin-filepath", vim.fn.fnameescape(vim.api.nvim_buf_get_name(0)), '--single-quote'},
          stdin = true
        }
      end
    },
  }
})

Rustfmt

require('formatter').setup({
  filetype = {
    rust = {
      -- Rustfmt
      function()
        return {
          exe = "rustfmt",
          args = {"--emit=stdout"},
          stdin = true
        }
      end
    },
  }
})

shfmt

require('formatter').setup({
  filetype = {
    sh = {
        -- Shell Script Formatter
       function()
         return {
           exe = "shfmt",
           args = { "-i", 2 },
           stdin = true,
         }
       end,
   }
  }
})

luafmt

require('formatter').setup({
  filetype = {
    lua = {
        -- luafmt
        function()
          return {
            exe = "luafmt",
            args = {"--indent-count", 2, "--stdin"},
            stdin = true
          }
        end
    },
  }
})

stylua

require('formatter').setup({
  filetype = {
     lua = {
      function()
        return {
          exe = "stylua",
          args = {
            "--config-path "
              .. os.getenv("XDG_CONFIG_HOME")
              .. "/stylua/stylua.toml",
            "-",
          },
          stdin = true,
        }
      end,
    },
  }
})

clang-format

require('formatter').setup({
  filetype = {
    cpp = {
        -- clang-format
       function()
          return {
            exe = "clang-format",
            args = {"--assume-filename", vim.api.nvim_buf_get_name(0)},
            stdin = true,
            cwd = vim.fn.expand('%:p:h')  -- Run clang-format in cwd of the file.
          }
        end
    },
  }
})

rubocop

require('formatter').setup({
  filetype = {
    ruby = {
       -- rubocop
       function()
         return {
           exe = "rubocop", -- might prepend `bundle exec `
           args = { '--auto-correct', '--stdin', '%:p', '2>/dev/null', '|', "awk 'f; /^====================$/{f=1}'"},
           stdin = true,
         }
       end
     }
  }
})

terraform

require('formatter').setup({
  filetype = {
    terraform = {
      function()
        return {
          exe = "terraform",
          args = { "fmt", "-" },
          stdin = true
        }
      end
    }
  }
})

Black

require('formatter').setup({
  filetype = {
    python = {
      -- Configuration for psf/black
      function()
        return {
          exe = "black", -- this should be available on your $PATH
          args = { '-' },
          stdin = true,
        }
      end
    }
  }
})

autopep8

require("formatter").setup({
  filetype = {
    python = {
      function()
        return {
          exe = "python3 -m autopep8",
          args = {
            "--in-place --aggressive --aggressive",
            vim.fn.fnameescape(vim.api.nvim_buf_get_name(0))
          },
          stdin = false
        }
      end
    }
  }
})