Add code coverage reporting

.travis.yml

@@ -8,3 +8,15 @@ rust:
 matrix:
   allow_failures:
     - rust: beta
+
+addons:
+  apt:
+    packages:
+      - binutils-dev
+      - libcurl4-openssl-dev
+      - zlib1g-dev
+      - libdw-dev
+      - libiberty-dev
+
+after_success:
+  - ci/upload-coverage

ci/upload-coverage

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+KCOV_VERSION="36"
+CRATE=ssd1675
+
+set -e
+
+curl -OL "https://github.com/SimonKagstrom/kcov/archive/v$KCOV_VERSION.tar.gz"
+tar zxf "v$KCOV_VERSION.tar.gz"
+cd "kcov-$KCOV_VERSION"
+mkdir build
+cd build
+cmake ..
+make
+make install DESTDIR=../../kcov-build
+cd ../..
+rm -rf "kcov-$KCOV_VERSION"
+
+for file in target/debug/"$CRATE"-*[^\.d]; do
+  mkdir -p "target/cov/$(basename "$file")";
+  ./kcov-build/usr/local/bin/kcov --exclude-pattern=/.cargo,/usr/lib --verify "target/cov/$(basename "$file")" "$file";
+done
+
+bash <(curl -s https://codecov.io/bash)
+echo "Uploaded code coverage"