feat(tests)!: new infrastructure based on makefile

Problem: Not easy to run all checks and tests locally. Redundant CI
workflows.

Solution: Separate CI into two workflows:
 * lint: Lua files (stylua, luals), query files (valid captures,
   predicates, directives using tsqueryls), docs
   (SUPPORTED_LANGUAGES.md) -- does not need parser installation
 * tests: parsers (ABI compatibility), query files (tsqueryls on
   Linux/macOS; nvim on Windows), highlight and indent tests (separated
   for better readability) -- needs parser installation (but only once)

Switch to https://github.com/nvim-treesitter/highlight-assertions fork
with ABI 15 support.

Run all tests (on Linux and macOS) through `make` (`formatlua`,
`checklua`, `lintquery`, `formatquery`, `checkquery`, `docs`, `tests`),
which downloads and caches all necessary dependencies.

Remove `update-readme` workflow (replaced by lint job on PRs).

1 files changed, 40 insertions, 0 deletions

diff --git a/scripts/check-parsers.lua b/scripts/check-parsers.lua
new file mode 100755
index 000000000..08e48740d
--- /dev/null
+++ b/scripts/check-parsers.lua
@@ -0,0 +1,40 @@
+#!/usr/bin/env -S nvim -l
+vim.opt.runtimepath:append('.')
+
+local configs = require('nvim-treesitter.parsers')
+local parsers = #_G.arg > 0 and { unpack(_G.arg) }
+  or require('nvim-treesitter.config').installed_parsers()
+
+local data = {} ---@type table[]
+local errors = {} ---@type string[]
+for _, lang in pairs(parsers) do
+  if configs[lang] and configs[lang].install_info then
+    local ok, info = pcall(vim.treesitter.language.inspect, lang)
+    if not ok then
+      errors[#errors + 1] = string.format('%s: %s', lang, info)
+    else
+      data[#data + 1] = { lang = lang, abi = info.abi_version, state_count = info.state_count }
+    end
+  end
+end
+
+if #errors > 0 then
+  print('::group::Errors')
+  for _, err in ipairs(errors) do
+    print(err)
+  end
+  print('::endgroup::')
+  print('Check failed!\n')
+  vim.cmd.cq()
+else
+  print('::group::State counts')
+  table.sort(data, function(a, b)
+    return a.state_count < b.state_count
+  end)
+
+  for i, val in ipairs(data) do
+    print(string.format('%i.\t%d\t%s (ABI %d)', #data - i + 1, val.state_count, val.lang, val.abi))
+  end
+  print('::endgroup::')
+  print('Check successful!')
+end