freshnaut: Send all binary garbage to stderr

astronaut/freshnaut

@@ -90,14 +90,17 @@ function get_available_versions(satellite)
         return
     end
 
-    io.write("\x1B[1K\r" .. satellite .. ": Downloading update file...")
+    io.stderr:write("\x1B[1K\r")
+    io.stderr:write(satellite .. ": Downloading update file...")
     local update_file = download(update_url)
     if not update_file then
-        print("\x1B[1K\rWARNING: " .. satellite .. ": Failed to download " .. update_url)
+        io.stderr:write("\x1B[1K\r")
+        print("WARNING: " .. satellite .. ": Failed to download " .. update_url)
         return
     end
 
-    io.write("\x1B[1K\r" .. satellite .. ": Getting available versions...")
+    io.stderr:write("\x1B[1K\r")
+    io.stderr:write(satellite .. ": Getting available versions...")
     -- Try getting variable update_names, get downloads otherwise.
     local update_names = astrohelp(satellite, "variable update_names")
     if not update_names then
@@ -130,11 +133,13 @@ function get_available_versions(satellite)
         end
     end
 
+    io.stderr:write("\x1B[1K\r")
+
     if count < 1 then
-        print("\x1B[1K\rWARNING: " .. satellite .. ": Couldn't retrieve any versions")
+        print("WARNING: " .. satellite .. ": Couldn't retrieve any versions")
         return
     elseif not versions[version] then
-        print("\x1B[1K\rWARNING: " .. satellite .. ": Current version isn't available")
+        print("WARNING: " .. satellite .. ": Current version isn't available")
     end
 
     return versions, update_url
@@ -161,7 +166,7 @@ function check_new_versions(satellite, version_file_path)
             old_versions[version] = true
         end
     else
-        print("\x1B[1K\r" .. satellite .. ": First check")
+        print(satellite .. ": First check")
         version_file = io.open(version_file_path, "w")
         assert(version_file, "Failed to create " .. version_file_path)
     end
@@ -180,11 +185,11 @@ function check_new_versions(satellite, version_file_path)
     end
 
     if #new_versions > 0 then
-        print("\x1B[1K\r" .. satellite .. ": From '" .. update_url .. "'")
+        print(satellite .. ": From '" .. update_url .. "'")
 
         for _, version in ipairs(new_versions) do
             version_file:write(version .. "\n")
-            print("\x1B[1K\r" .. satellite .. ": " .. version)
+            print(satellite .. ": " .. version)
         end
     end
 
@@ -214,11 +219,11 @@ elseif arg[1] == "dir" then
         if cols then
             cols = tonumber(cols)
             local countstr = tostring(count) .. "/" .. tostring(total)
-            io.write("\r")
+            io.stderr:write("\r")
             for i = 1, cols - countstr:len() - 1 do
-                io.write(" ")
+                io.stderr:write(" ")
             end
-            io.write(countstr .. "\r")
+            io.stderr:write(countstr .. "\r")
         end
 
         local version_file = version_dir .. "/" .. satellite