add prebuild support to generate native modules

.npmignore

@@ -1,4 +1,6 @@
 /build
+/docker
+/script
 /test
 *.log
 *~

.travis.yml

@@ -13,15 +13,20 @@ sudo: false
 language: node_js
 
 node_js:
-  - "8"
-  - "10"
-  - "11"
   - "12"
 
+services:
+  - docker
+
 env:
   - CC=clang CXX=clang++ npm_config_clang=1
 
-script: npm test
+script:
+  - npm test
+  - npm run prebuild-node
+  - npm run prebuild-electron
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then docker build -t node-fs-admin/i386 docker/i386 && docker run --rm -v ${PWD}:/project node-fs-admin/i386 /bin/bash -c "cd /project && npm run prebuild-node-ia32 && npm run prebuild-electron-ia32"; fi
+  - if [[ -n "$TRAVIS_TAG" ]]; then npm run upload; fi
 
 branches:
   only:

appveyor.yml

@@ -2,26 +2,26 @@ image: Visual Studio 2015
 
 environment:
   matrix:
-  - nodejs_version: "8"
-  - nodejs_version: "10"
-  - nodejs_version: "11"
   - nodejs_version: "12"
 
 platform:
-  - x86
   - x64
 
 install:
   # https://www.appveyor.com/docs/lang/nodejs-iojs/#installing-any-version-of-nodejs-or-iojs
   - ps: Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version) $env:PLATFORM
   - npm install
 
-test_script:
-  - node --version
-  - npm --version
+build_script:
   - npm test
+  - npm run prebuild-node
+  - npm run prebuild-node-ia32
+  - npm run prebuild-electron
+  - npm run prebuild-electron-ia32
+  - if defined APPVEYOR_REPO_TAG_NAME (npm run upload)
 
-build: off
+test: off
+deploy: off
 
 branches:
   only:

docker/i386/Dockerfile

@@ -0,0 +1,17 @@
+FROM i386/debian:stretch
+
+RUN apt-get update
+RUN apt-get install --quiet --yes \
+    build-essential \
+    curl \
+    pkg-config \
+    clang \
+    python \
+    libsecret-1-dev
+
+RUN curl -sL https://deb.nodesource.com/setup_9.x | bash -
+RUN apt-get install -y nodejs
+
+ENV CC clang
+ENV CXX clang++
+ENV npm_config_clang 1