feat(crawler): migrate to LuaSocket

src/awesomewm.d.tl/crawler/init.lua

@@ -1,33 +1,28 @@
-local curl = require "cURL"
+local http = require "socket.http"
 local inspect = require "inspect"
 local log = require "logger"
 
 local crawler = {}
 
 function crawler.request(url)
-   local queue = {}
-   local easy = curl.easy():setopt_url(url):setopt_writefunction(function(buf)
-      table.insert(queue, buf)
-   end)
+   local body, code_or_error = http.request(url)
 
-   local ok, err = easy:perform()
-   if not ok then
-      easy:close()
-      error { message = "curl.easy failed", err = err }
+   if not body then
+      local err = code_or_error
+      error { "Request failed", err = err, url = url }
    end
 
-   local code, body = easy:getinfo_response_code(), table.concat(queue)
-   easy:close()
+   local code = code_or_error
 
    if code < 200 and code >= 300 then
       error {
-         message = "curl response code is not 200",
+         "Request successful, but returned non-200 code",
          code = code,
          body = body,
       }
    end
 
-   return queue
+   return body
 end
 
 function crawler.fetch(url)
@@ -40,7 +35,7 @@ function crawler.fetch(url)
 
    log:info(inspect { message = "Successfully fetched resource", url = url })
 
-   return table.concat(result, "")
+   return result
 end
 
 return crawler