travis/lint/radon: cumsum complexity categories, not individual scores

Author: kernc

.travis/check_pylint_diff

@@ -17,6 +17,7 @@ PYLINT="$(command -v pylint 2>/dev/null || true)"
 RADON="$(command -v radon 2>/dev/null || true)"
 PYLINT_ARGS="--output-format=parseable"
 RADON_ARGS='cc --min C --no-assert --show-closures --show-complexity --average'
+RADON_AWK_MAP='m["A"]=1; m["B"]=1; m["C"]=2; m["D"]=3; m["E"]=5; m["F"]=8;'
 
 trap "status=\$?; cd '$GIT_REPO'; rm -rf '$TMP_REPO'; exit \$status" EXIT
 mkdir -p "$CACHE_DIR"
@@ -139,7 +140,7 @@ Cyclomatic_complexity ()
         echo "$CHANGED_FILES" |
             xargs "$RADON" $RADON_ARGS |
             tee "$cached"
-    } | awk -F'[()]' '/ .+\([0-9]+\)$/ { tot += $2 } END { print tot }' || true
+    } | awk "BEGIN{$RADON_AWK_MAP}"'/ .+- [A-F] \(/ { tot += m[$5] } END { print tot }' || true
 }
 
 Get_diffable ()