Make bootstrap generation a bit quieter

- remove tee output
- disable debug logging in cabal-bootstrap-gen by default

Makefile

@@ -186,7 +186,7 @@ bootstrap-json-%: phony
 	cp dist-newstyle/cache/plan.json bootstrap/linux-$*.plan.json
 	@# -v0 to avoid build output on stdout
 	cd bootstrap && cabal v2-run -v0 cabal-bootstrap-gen -- linux-$*.plan.json \
-		| python3 -m json.tool | tee linux-$*.json
+		| python3 -m json.tool > linux-$*.json
 
 bootstrap-jsons: bootstrap-json-8.6.5 bootstrap-json-8.8.4 bootstrap-json-8.10.7
 

bootstrap/src/Main.hs

@@ -214,8 +214,14 @@ instance A.ToJSON SrcType where
 -- Utilities
 -------------------------------------------------------------------------------
 
+-- | Log some debug information to stderr.
+--
+-- Disabled by default to keep the output tidy, replace by
+-- the version with 'hPutStrLn' when debugging.
+--
 info :: String -> IO ()
-info msg = hPutStrLn stderr $ "INFO: " ++ msg
+info _msg = return ()
+-- info msg = hPutStrLn stderr $ "INFO: " ++ msg
 
 die :: String -> IO a
 die msg = do