feat(format): add rustfmt

bundle/format.nvim/lua/format.lua

@@ -1,69 +1,69 @@
-local M = {}
-
-local util = require('format.util')
-local task = require('format.task')
-
-local custom_formatters = {}
-
-function M.format(bang, user_input, start_line, end_line)
-  if not vim.o.modifiable then
-    return util.msg('buffer is not modifiable!')
-  end
-
-  local filetype = vim.o.filetype
-  local argvs = vim.split(user_input, '%s+')
-  if bang and #argvs > 0 then
-    filetype = argvs[1]
-  end
-
-  if filetype == '' then
-    return util.msg('format: skip empty filetype')
-  end
-  local ok, formatter
-  if custom_formatters[filetype] then
-    formatter = custom_formatters[filetype]
-    if formatter.exe and type(formatter.exe) == 'string' then
-      util.info('using custom formatter:' .. formatter.exe)
-    end
-  end
-
-  if not formatter then
-    ok = pcall(function()
-      local default = require('format.ft.' .. filetype)
-      for _, formatname in ipairs(default.enabled()) do
-        formatter = default[formatname]({
-          filepath = vim.fn.expand('%:p'),
-          start_line = start_line,
-          end_line = end_line,
-        })
-        if vim.fn.executable(formatter.exe) == 1 then
-          util.info('using default formatter:' .. formatname)
-          break
-        end
-      end
-    end)
-    if not ok then
-      return util.msg('no formatter for ' .. filetype)
-    end
-  end
-
-  task.run({
-    bufnr = vim.fn.bufnr(),
-    stdin = vim.api.nvim_buf_get_lines(0, start_line - 1, end_line, false),
-    start_line = start_line - 1,
-    end_line = end_line,
-    formatter = formatter,
-  })
-end
-
-function M.setup(opt)
-  if opt.custom_formatters and type(opt.custom_formatters) == 'table' then
-    for k, v in pairs(opt.custom_formatters) do
-      if type(v) == 'table' then
-        custom_formatters[k] = v
-      end
-    end
-  end
-end
-
-return M
+local M = {}
+
+local util = require('format.util')
+local task = require('format.task')
+
+local custom_formatters = {}
+
+function M.format(bang, user_input, start_line, end_line)
+  if not vim.o.modifiable then
+    return util.msg('buffer is not modifiable!')
+  end
+
+  local filetype = vim.o.filetype
+  local argvs = vim.split(user_input, '%s+')
+  if bang and #argvs > 0 then
+    filetype = argvs[1]
+  end
+
+  if filetype == '' then
+    return util.msg('format: skip empty filetype')
+  end
+  local ok, formatter
+  if custom_formatters[filetype] then
+    formatter = custom_formatters[filetype]
+    if formatter.exe and type(formatter.exe) == 'string' then
+      util.info('using custom formatter:' .. formatter.exe)
+    end
+  end
+
+  if not formatter then
+    ok = pcall(function()
+      local default = require('format.ft.' .. filetype)
+      for _, formatname in ipairs(default.enabled()) do
+        formatter = default[formatname]({
+          filepath = vim.fn.expand('%:p'),
+          start_line = start_line,
+          end_line = end_line,
+        })
+        if vim.fn.executable(formatter.exe) == 1 then
+          util.info('using default formatter:' .. formatname)
+          break
+        end
+      end
+    end)
+    if not ok then
+      return util.msg('no formatter for ' .. filetype)
+    end
+  end
+
+  task.run({
+    bufnr = vim.fn.bufnr(),
+    stdin = vim.api.nvim_buf_get_lines(0, start_line - 1, end_line, false),
+    start_line = start_line - 1,
+    end_line = end_line,
+    formatter = formatter,
+  })
+end
+
+function M.setup(opt)
+  if opt.custom_formatters and type(opt.custom_formatters) == 'table' then
+    for k, v in pairs(opt.custom_formatters) do
+      if type(v) == 'table' then
+        custom_formatters[k] = v
+      end
+    end
+  end
+end
+
+return M

bundle/format.nvim/lua/format/ft/rust.lua

@@ -0,0 +1,15 @@
+local M = {}
+
+function M.enabled()
+  return { 'rustfmt' }
+end
+
+function M.rustfmt(opt)
+  return {
+    exe = 'rustfmt',
+    args = {},
+    stdin = true,
+  }
+end
+
+return M