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#!/usr/bin/env -S nvim -l
-- Update parsers to latest version (tier 1, stable) or commit (tier 2, unstable)
--
-- Usage:
-- nvim -l update-parsers.lua # update all (stable and unstable) parsers
-- nvim -l update-parsers.lua --tier=1 # update stable parsers to latest version
-- nvim -l update-parsers.lua --tier=2 # update unstable parsers to latest commit
local tier = nil ---@type integer?
for i = 1, #_G.arg do
if _G.arg[i]:find('^%-%-tier=') then
tier = tonumber(_G.arg[i]:match('=(%d+)'))
end
end
vim.opt.runtimepath:append('.')
local util = require('nvim-treesitter.util')
local parsers = require('nvim-treesitter.parsers')
local jobs = {} ---@type table<string,vim.SystemObj>
local updates = {} ---@type string[]
-- check for new revisions
for k, p in pairs(parsers) do
if p.tier <= 2 and (tier == nil or p.tier == tier) and p.install_info then
print('Updating ' .. k)
local cmd = p.tier == 1
and {
'git',
'-c',
'versionsort.suffix=-',
'ls-remote',
'--tags',
'--refs',
'--sort=v:refname',
p.install_info.url,
}
or { 'git', 'ls-remote', p.install_info.url }
jobs[k] = vim.system(cmd)
end
if #vim.tbl_keys(jobs) % 100 == 0 or next(parsers, k) == nil then
for name, job in pairs(jobs) do
local stdout = vim.split(job:wait().stdout, '\n')
jobs[name] = nil
local info = parsers[name].install_info
assert(info)
local sha ---@type string
if parsers[name].tier == 1 then
sha = stdout[#stdout - 1]:match('v[%d%.]+$')
else
local branch = info.branch
local line = 1
if branch then
for j, l in ipairs(stdout) do
if l:find(vim.pesc(branch)) then
line = j
break
end
end
end
sha = vim.split(stdout[line], '\t')[1]
end
if info.revision ~= sha then
info.revision = sha
updates[#updates + 1] = name
end
end
end
end
assert(#vim.tbl_keys(jobs) == 0)
if #updates > 0 then
-- write new parser file
local header = '---@type nvim-ts.parsers\nreturn '
local parser_file = header .. vim.inspect(parsers)
if vim.fn.executable('stylua') == 1 then
parser_file = vim.system({ 'stylua', '-' }, { stdin = parser_file }):wait().stdout --[[@as string]]
end
util.write_file('lua/nvim-treesitter/parsers.lua', parser_file)
table.sort(updates)
local update_list = table.concat(updates, ', ')
print(string.format('\nUpdated parsers: %s', update_list))
-- pass list to workflow
local gh_env = os.getenv('GITHUB_ENV')
if gh_env then
local env = assert(io.open(gh_env, 'a'))
env:write(string.format('UPDATED_PARSERS=%s\n', update_list))
env:close()
end
else
print('\nAll parsers up to date!')
end
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