ci: break down to multiple stages \w prallel jobs

Biggest benefit of using separate stage for tests and release
is that we are not waiting for osx VM instance instance any
more on every PR, just to run
`if [[ -z "$TRAVIS_TAG" ]]; then echo "Skipping this build for non-tag builds."; exit 0; fi`
there.

It alos adds clarity to CI structure => is easier to maintain.

Signed-off-by: Alexander Bezzubov <bzz@apache.org>

.travis.yml

@@ -5,14 +5,13 @@ language: go
 go:
   - '1.10.x'
 
+go_import_path: gopkg.in/src-d/enry.v1
+
 addons:
   apt:
     packages:
       - libonig-dev
 
-matrix:
-  fast_finish: true
-
 env:
   global:
     - GO_VERSION='1.10.x'
@@ -20,120 +19,91 @@ env:
     - ONIGURUMA=0
     - ONIGURUMA=1
 
-install:
+stages:
-  - go version
+  - name: test
-  - rm -rf $GOPATH/src/gopkg.in/src-d
+  - name: release
-  - mkdir -p $GOPATH/src/gopkg.in/src-d
+    if: tag IS present
-  - ln -s $PWD $GOPATH/src/gopkg.in/src-d/enry.v1
-  - cd $GOPATH/src/gopkg.in/src-d/enry.v1
-  - if [ "$ONIGURUMA" == "1" ]; then tags="$tags oniguruma"; fi; go get -v -t --tags "$tags" ./...
-script:
-  - make test-coverage
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash)
-
-before_deploy:
-  - make packages
-
-deploy:
-  provider: releases
-  api_key:
-    secure: $GITHUB_TOKEN
-  file_glob: true
-  file: build/*.tar.gz
-  skip_cleanup: true
-  on:
-    tags: true
 
 jobs:
-  env:
-    - ONIGURUMA=0
   include:
-    - stage: test
+    - name: 'golang unitTests'
+      stage: test
+      install:
+        - if [ "$ONIGURUMA" == "1" ]; then tags="$tags oniguruma"; fi; go get -v -t --tags "$tags" ./...
+      script:
+        - make test-coverage
+      after_success:
+        - bash <(curl -s https://codecov.io/bash)
+
+    - name: 'java unitTests'
+      stage: test
       language: scala
       jdk: oraclejdk8
-
       install:
         - gimme version
         - eval "$(curl -sL https://raw.githubusercontent.com/travis-ci/gimme/master/gimme | GIMME_GO_VERSION=$GO_VERSION bash)"
         - go version
-        - export GOPATH=$HOME/gopath
-        - mkdir -p $GOPATH/src/gopkg.in/src-d/enry.v1
-        - rsync -az ${TRAVIS_BUILD_DIR}/ $GOPATH/src/gopkg.in/src-d/enry.v1
         - go get -v gopkg.in/src-d/enry.v1/...
-
       before_script:
         - cd java
         - make
-
       script:
         - make test
 
-      before_deploy:
+    - name: 'linux packages'
-        - cd ..
+      stage: release
-
+      script: make packages
       deploy:
         provider: releases
+        api_key:
+          secure: $GITHUB_TOKEN
+        file_glob: true
+        file: build/*.tar.gz
+        skip_cleanup: true
+
+    - name: 'linux shared lib'
+      stage: release
+      script: make linux-shared
+      deploy:
+        provider: release
         api_key:
           secure: $GITHUB_TOKEN
         file:
           - ./.shared/linux-x86-64/libenry.so
         skip_cleanup: true
-        on:
-          tags: true
-
-    - stage: Build MacOS shared
 
+    - name: 'macOS shared lib'
+      stage: release
+      sudo: true
       env:
         - OSXCROSS_PACKAGE="osxcross_3034f7149716d815bc473d0a7b35d17e4cf175aa.tar.gz"
         - OSXCROSS_URL="https://github.com/bblfsh/client-scala/releases/download/v1.5.2/${OSXCROSS_PACKAGE}"
         - PATH="/$HOME/osxcross/bin:$PATH"
-
-      sudo: true
-
       install:
-        - if [[ -z "$TRAVIS_TAG" ]]; then echo "Skipping this build for non-tag builds."; exit 0; fi
-        - rm -rf $GOPATH/src/gopkg.in/src-d
-        - mkdir -p $GOPATH/src/gopkg.in/src-d
-        - ln -s $PWD $GOPATH/src/gopkg.in/src-d/enry.v1
-        - cd $GOPATH/src/gopkg.in/src-d/enry.v1
         - go get -v -t ./...
         - sudo apt-get update
         - sudo apt-get install -y --no-install-recommends clang g++ gcc gcc-multilib libc6-dev libc6-dev-i386 mingw-w64 patch xz-utils
         - cd ${HOME}
         - curl -sSL ${OSXCROSS_URL} | tar -C ${HOME} -xzf -
         - cd $GOPATH/src/gopkg.in/src-d/enry.v1
-
+      script: make darwin-shared
-      script:
-        - make darwin-shared
-
-      before_deploy:
-        - echo "skip before_deploy"
-
       deploy:
         provider: releases
         api_key:
           secure: $GITHUB_TOKEN
         file: ./.shared/darwin/libenry.dylib
         skip_cleanup: true
-        on:
-          tags: true
 
-    - stage: Publish Maven
+    - name: 'java: publish to maven'
+      stage: release
       language: scala
       jdk: oraclejdk8
-
       install:
         - eval "$(curl -sL https://raw.githubusercontent.com/travis-ci/gimme/master/gimme | GIMME_GO_VERSION=$GO_VERSION bash)"
         - go version
-        - export GOPATH=$HOME/gopath
+        - go version
-        - mkdir -p $GOPATH/src/gopkg.in/src-d/enry.v1
-        - rsync -az ${TRAVIS_BUILD_DIR}/ $GOPATH/src/gopkg.in/src-d/enry.v1
         - go get -v gopkg.in/src-d/enry.v1/...
-
       before_script:
-        - if [[ -z "$TRAVIS_TAG" ]]; then echo "Skipping this build for non-tag builds."; exit 0; fi
         - cd java
         - make
         - curl -o ./shared/linux-x86-64/libenry.so -sL "https://github.com/$TRAVIS_REPO_SLUG/releases/download/$TRAVIS_TAG/libenry.so"
@@ -141,19 +111,16 @@ jobs:
         - curl -o ./shared/darwin/libenry.dylib -sL "https://github.com/$TRAVIS_REPO_SLUG/releases/download/$TRAVIS_TAG/libenry.dylib"
         - openssl aes-256-cbc -K $encrypted_a0e1c69dbbc7_key -iv $encrypted_a0e1c69dbbc7_iv -in key.asc.enc -out key.asc -d
         - gpg --no-default-keyring --primary-keyring ./project/.gnupg/pubring.gpg --secret-keyring ./project/.gnupg/secring.gpg --keyring ./project/.gnupg/pubring.gpg --fingerprint --import key.asc
-
       script:
         - make test # ensure the shared objects are functional
         - ./sbt publishLocal
         - ./sbt publishSigned
         - ./sbt sonatypeRelease
-
       before_deploy:
         - rm ./target/enry-java-*-javadoc.jar
         - rm ./target/enry-java-*-sources.jar
         - rm ./target/enry-java-*-tests.jar
         - rm ./target/enry-java-assembly-*.jar
-
       deploy:
         provider: releases
         api_key:
@@ -161,5 +128,3 @@ jobs:
         file_glob: true
         file: ./target/enry-java*.jar
         skip_cleanup: true
-        on:
-          tags: true