Swift: reconfigure default logging in qltest.sh

Route all logging to console by default, which ends up in the qltest.log
file.

Author: redsun82

swift/tools/qltest.sh

@@ -6,6 +6,7 @@ QLTEST_LOG="$CODEQL_EXTRACTOR_SWIFT_LOG_DIR"/qltest.log
 
 EXTRACTOR="$CODEQL_EXTRACTOR_SWIFT_ROOT/tools/$CODEQL_PLATFORM/extractor"
 SDK="$CODEQL_EXTRACTOR_SWIFT_ROOT/qltest/$CODEQL_PLATFORM/sdk"
+export CODEQL_EXTRACTOR_SWIFT_LOG_LEVELS=${CODEQL_EXTRACTOR_SWIFT_LOG_LEVELS:-out:text:no_logs,out:console:info}
 
 for src in *.swift; do
   env=()
@@ -14,7 +15,7 @@ for src in *.swift; do
   expected_status=$(sed -n 's=//codeql-extractor-expected-status:[[:space:]]*==p' $src)
   expected_status=${expected_status:-0}
   env+=($(sed -n '1 s=//codeql-extractor-env:==p' $src))
-  echo -e "calling extractor with flags: ${opts[@]}\n" >> $QLTEST_LOG
+  echo >> $QLTEST_LOG
   env "${env[@]}" "$EXTRACTOR" "${opts[@]}" >> $QLTEST_LOG 2>&1
   actual_status=$?
   if [[ $actual_status != $expected_status ]]; then