Test on Travis CI

.bazelrc

@@ -1,3 +1,6 @@
+# ---- User-local options -----------------------------------------------------
+try-import .bazelrc.local
+
 # ---- Global C/C++ build options ---------------------------------------------
 
 # Using a custom C++ toolchain to get around an issue with rules_rust on macOS:

.gitignore

@@ -1,2 +1,3 @@
 /target
 /bazel-*
+.bazelrc.local

.travis.yml

@@ -0,0 +1,19 @@
+language: rust
+
+# It's slower to cache (fetch cache, unzip, zip, upload cache) than to fetch
+# deps directly right now.
+
+os:
+  - linux
+  - osx
+
+install:
+  - ./tools/scripts/ci-setup.sh
+  - ./bazel --help
+
+script:
+  - ./bazel test --test_output=errors //test
+
+before_deploy:
+  - cargo install --path .
+  - cd "$HOME/.cargo/bin" && zip "barchart-${TRAVIS_TAG}-${TRAVIS_OS_NAME}.zip" ./barchart

tools/scripts/ci-setup.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+cat > .bazelrc.local <<EOF
+common --curses=no
+EOF