Use cover-coveralls.

.travis.yml

@@ -37,7 +37,9 @@ before_install:
 - git config --global user.name "Travis CI"
 - git config --global user.email "travis@nobody.com"
 - git init ~/gh-pages
-
+- echo "Temporary switch to my fork of cover:"
+- git clone https://github.com/jsmaniac/cover.git -b multiple-output-formats ~/cover-tool/cover
+- (cd ~/cover-tool/cover; raco pkg install --deps search-auto --update-deps --skip-installed)
 
 cache:
   apt: true

graph-lib/Makefile

@@ -12,4 +12,4 @@ clean:
 
 .PHONY: build-dep
 build-dep:
-	raco pkg install --deps search-auto --update-deps --skip-installed alexis-util cover debug
+	raco pkg install --deps search-auto --update-deps --skip-installed alexis-util cover cover-coveralls debug

graph-lib/make/make.rkt

@@ -201,7 +201,9 @@
 
 (run! `(,(find-executable-path-or-fail "raco")
         "cover"
-	"-s" "doc"
-	"-s" "test"
+        "-s" "doc"
+        "-s" "test"
+        "-f" "html"
+        "-f" "coveralls"
         "-v"
         ,@(exclude-dirs rkt-files (list "make/"))))