Added separate prebuild task

Author: Simon Hofmann

.travis.yml

@@ -92,9 +92,7 @@ matrix:
         - BUILD_TASK=prebuild
 
 before_install:
-  - if [[ $BUILD_TASK != "prebuild" ]]; then
-    chmod +x ./ci/$BUILD_TASK/$BUILD_TASK.sh;
-    fi
+  - chmod +x ./ci/$BUILD_TASK/$BUILD_TASK.sh;
 
 install:
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then travis_wait 30 docker pull justadudewhohacks/opencv4nodejs-ci:$TAG; fi
@@ -109,8 +107,9 @@ script:
 
 after_success:
   - if [[ $TRAVIS_TAG != "" && $BUILD_TASK == "prebuild" ]]; then
-    npm install;
-    npm run prebuild -- --tag-prefix "" -u $GITHUB_TOKEN;
+    cd ./ci/$BUILD_TASK;
+    npm run $BUILD_TASK $TAG;
+    cd -;
     fi
   - if [ $BUILD_TASK = 'cover' ]; then
     npm install;

ci/prebuild/Dockerfile

@@ -0,0 +1,6 @@
+ARG TAG
+
+FROM justadudewhohacks/opencv4nodejs-ci:${TAG}
+
+COPY ./ ./
+CMD ["bin/bash", "./ci/test/script/run-prebuild.sh"]

ci/prebuild/package.json

@@ -0,0 +1,5 @@
+{
+  "scripts": {
+    "test": "bash ./prebuild.sh"
+  }
+}

ci/prebuild/prebuild.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+if [[ "$TRAVIS_OS_NAME" == "linux" ]];
+then
+    image=opencv4nodejs-ci_$1
+    docker build -t $image -f ./Dockerfile --build-arg TAG=$1 ../../
+    docker run -e GITHUB_TOKEN=$GITHUB_TOKEN $image
+elif [[ "$TRAVIS_OS_NAME" == "osx" ]];
+then
+    cd ../../ &&\
+    npm install --unsafe-perm &&\
+    npm run prebuild -- --tag-prefix "" -u $GITHUB_TOKEN;
+fi

ci/prebuild/script/run-prebuild.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+export OPENCV4NODEJS_DISABLE_AUTOBUILD=1
+echo "Installing dependencies" &&\
+npm install --unsafe-perm &&\
+echo "Running prebuild" &&\
+npm install --unsafe-perm &&\
+npm run prebuild -- --tag-prefix "" -u $GITHUB_TOKEN;