go.nvim/lua/go/format.lua
2021-08-14 10:27:55 +10:00

100 lines
2.9 KiB
Lua

-- golines A golang formatter that fixes long lines
-- golines + gofumports(stricter gofmt + goimport)
local api = vim.api
local utils = require("go.utils")
local max_len = _GO_NVIM_CFG.max_line_len or 120
local goimport = _GO_NVIM_CFG.goimport ~= nil and _GO_NVIM_CFG.goimport or "gofumports"
local gofmt = _GO_NVIM_CFG.gofmt ~= nil and _GO_NVIM_CFG.gofmt or "gofumpt"
local gofmt_args = _GO_NVIM_CFG.gofmt_args and _GO_NVIM_CFG.gofmt_args
or {"--max-len=" .. tostring(max_len), "--base-formatter=" .. gofmt}
local goimport_args = _GO_NVIM_CFG.goimport_args and _GO_NVIM_CFG.goimport_args
or {"--max-len=" .. tostring(max_len), "--base-formatter=" .. goimport}
local run = function(args, from_buffer)
if not from_buffer then
table.insert(args, api.nvim_buf_get_name(0))
print('formatting... ' .. api.nvim_buf_get_name(0) .. vim.inspect(args))
end
local old_lines = api.nvim_buf_get_lines(0, 0, -1, true)
table.insert(args, 1, "golines")
local j = vim.fn.jobstart(args, {
on_stdout = function(job_id, data, event)
data = utils.handle_job_data(data)
if not data then
return
end
if not utils.check_same(old_lines, data) then
print("updating codes")
api.nvim_buf_set_lines(0, 0, -1, false, data)
api.nvim_command("write")
else
print("already formatted")
end
utils.log("stdout" .. vim.inspect(data))
old_lines = nil
end,
on_stderr = function(job_id, data, event)
utils.log(vim.inspect(data) .. "stderr")
end,
on_exit = function(id, data, event)
utils.log(vim.inspect(data) .. "exit")
-- utils.log("current data " .. vim.inspect(new_lines))
old_lines = nil
end,
stdout_buffered = true,
stderr_buffered = true
})
vim.fn.chansend(j, old_lines)
vim.fn.chanclose(j, "stdin")
end
local M = {}
M.gofmt = function(buf)
if _GO_NVIM_CFG.gofmt == 'gopls' then
vim.lsp.buf.formatting()
return
end
vim.env.GO_FMT = "gofumpt"
buf = buf or false
require("go.install").install(gofmt)
require("go.install").install("golines")
local a = {}
utils.copy_array(gofmt_args, a)
run(a, buf)
end
M.OrgImports = function(wait_ms)
local params = vim.lsp.util.make_range_params()
params.context = {only = {"source.organizeImports"}}
local result = vim.lsp.buf_request_sync(0, "textDocument/codeAction", params, wait_ms)
for _, res in pairs(result or {}) do
for _, r in pairs(res.result or {}) do
if r.edit then
vim.lsp.util.apply_workspace_edit(r.edit)
else
vim.lsp.buf.execute_command(r.command)
end
end
end
vim.lsp.buf.formatting()
end
M.goimport = function(buf)
if _GO_NVIM_CFG.goimport == 'gopls' then
M.OrgImports(1000)
return
end
buf = buf or false
require("go.install").install(goimport)
require("go.install").install("golines")
local a = {}
utils.copy_array(goimport_args, a)
run(a, buf)
end
return M