Meta: Build Lagom js and run LibJS tests on Travis

Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/660fd040632
Pull-request: https://github.com/SerenityOS/serenity/pull/1895

.travis.yml

@@ -23,16 +23,19 @@ notifications:
 before_install:
 - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
 - sudo apt-get update -qq
-- sudo apt-get install g++-8 libstdc++-8-dev shellcheck
+- sudo apt-get install -y g++-8 libstdc++-8-dev cmake shellcheck libmpfr-dev libmpc-dev libgmp-dev e2fsprogs qemu-system-i386 qemu-utils
 - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-8 90
 - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-8 90
-- sudo apt-get install -y libmpfr-dev libmpc-dev libgmp-dev
-- sudo apt-get install -y e2fsprogs qemu-system-i386 qemu-utils
 
 script:
+- export SERENITY_ROOT=$(pwd)
 - cd Toolchain
 - TRY_USE_LOCAL_TOOLCHAIN=y ./BuildIt.sh
 - cd ../Kernel
 - ./makeall.sh
 - ../Meta/lint-shell-scripts.sh
-- du -ch ../Toolchain/Cache/* || true
+- ../Meta/Lagom/build-js.sh
+- cd ../Libraries/LibJS/Tests
+- ./run-tests
+- cd ../../../Toolchain/Cache
+- du -ch * || true

Meta/Lagom/build-js.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
+cd "$script_path" || exit 1
+mkdir -p build
+cd build || exit 1
+cmake ..
+make js