Add travis / ci build script

.travis.yml

@@ -0,0 +1,19 @@
+language: c
+compiler:
+- gcc
+- clang
+script: ./ci/run_build.sh
+
+sudo: false
+
+deploy:
+  provider: releases
+  api_key:
+    secure: Yk90ANpSPv1iJy8QDXCPwfaSmEr/WIJ3bzhQ6X8JvZjfrwTosbh0HrUzQyeac3nyvNwj7YJRssolOFc21IBKPpCFTZqYxSkuLPU6ysG4HGHgN6YJhOMm4mG4KKJ6741q3DJendhZpalBhCEi+NcZK/PCSD97Vl4OqRjBUged0fs=
+  file:
+    - "./tini"
+    - "./tini-static"
+  on:
+    repo: krallin/tini
+    tags: true
+    condition: "$CC = gcc"

Dockerfile

@@ -7,6 +7,6 @@ RUN apt-get update \
 ADD . /tini
 WORKDIR /tini
 
-RUN cmake . && make clean && make
+RUN ./ci/run_build.sh
 
 ENTRYPOINT ["/tini/tini"]

ci/run_build.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+# Should be run from the root dir (!)
+set -o errexit
+set -o nounset
+
+# Build
+cmake .
+make clean
+make
+
+# Smoke tests (actual tests need Docker to run; they don't run within the CI environment)
+
+# Success
+for tini in ./tini ./tini-static; do
+  echo "Testing $tini with: true"
+  $tini -vvvv true
+
+  echo "Testing $tini with: false"
+  if $tini -vvvv false; then
+    exit 1
+  fi
+done