fix: install dependencies

scripts/update-lockfile.lua

@@ -21,21 +21,12 @@ end)
 
 -- check for new revisions
 for _, v in ipairs(sorted_parsers) do
-  if skip_langs and not vim.list_contains(skip_langs, v.name) then
-    local sha ---@type string
+  if not vim.list_contains(skip_langs, v.name) and v.parser.install_info then
+    local cmd = 'git ls-remote ' .. v.parser.install_info.url
     if v.parser.install_info.branch then
-      sha = vim.split(
-        vim.fn.systemlist(
-          'git ls-remote '
-            .. v.parser.install_info.url
-            .. ' | grep refs/heads/'
-            .. v.parser.install_info.branch
-        )[1],
-        '\t'
-      )[1]
-    else
-      sha = vim.split(vim.fn.systemlist('git ls-remote ' .. v.parser.install_info.url)[1], '\t')[1]
+      cmd = cmd .. ' | grep refs/heads/' .. v.parser.install_info.branch
     end
+    local sha = vim.split(vim.fn.systemlist(cmd)[1], '\t')[1]
     lockfile[v.name] = { revision = sha }
     print(v.name .. ': ' .. sha)
   else
@@ -43,5 +34,8 @@ for _, v in ipairs(sorted_parsers) do
   end
 end
 
-lockfile = vim.fn.system('jq --sort-keys', vim.json.encode(lockfile))
+lockfile = vim.json.encode(lockfile)
+if vim.fn.executable('jq') == 1 then
+  lockfile = vim.fn.system('jq --sort-keys', lockfile)
+end
 util.write_file(filename, lockfile)

scripts/update-readme.lua

@@ -23,14 +23,23 @@ local footnotes = ''
 for _, v in ipairs(sorted_parsers) do
   local p = v.parser
   -- language
-  generated_text = generated_text
-    .. '['
-    .. v.name
-    .. ']('
-    .. p.install_info.url
-    .. ')'
-    .. (p.readme_note and '[^' .. v.name .. ']' or '')
-    .. ' | '
+  if p.install_info then
+    generated_text = generated_text
+      .. '['
+      .. v.name
+      .. ']('
+      .. p.install_info.url
+      .. ')'
+      .. (p.readme_note and '[^' .. v.name .. ']' or '')
+      .. ' | '
+  else
+    generated_text = generated_text
+      .. v.name
+      .. ' (queries only)'
+      .. (p.readme_note and '[^' .. v.name .. ']' or '')
+      .. ' | '
+  end
+
   if p.readme_note then
     footnotes = footnotes .. '[^' .. v.name .. ']: ' .. p.readme_note .. '\n'
   end
@@ -50,11 +59,13 @@ for _, v in ipairs(sorted_parsers) do
 
   -- CLI
   generated_text = generated_text
-    .. (p.install_info.requires_generate_from_grammar and '✓' or '')
+    .. (p.install_info and p.install_info.requires_generate_from_grammar and '✓' or '')
     .. ' | '
 
   -- NPM
-  generated_text = generated_text .. (p.install_info.generate_requires_npm and '✓' or '') .. ' | '
+  generated_text = generated_text
+    .. (p.install_info and p.install_info.generate_requires_npm and '✓' or '')
+    .. ' | '
 
   -- Maintainer
   generated_text = generated_text