attempt to get sudo:false working

.travis.yml

 sudo: false
+
 language: cpp
+
+git:
+  depth: 10
+
 addons:
   apt:
     sources:
     - ubuntu-toolchain-r-test
+    - llvm-toolchain-precise-3.5
     packages:
-    - g++-4.8
-
-# http://docs.travis-ci.com/user/multi-os/
-os:
-  - linux
-  - osx
+     - clang-3.5
 
 # don't re-build for tags so that [publish binary] is not re-run
 # https://github.com/travis-ci/travis-ci/issues/1532
@@ -18,36 +19,82 @@ branches:
   except:
     - /^v[0-9]/
 
+matrix:
+  include:
+     # Linux
+     - os: linux
+       compiler: clang
+       env: NODE_VERSION="3.1.0" PUBLISHABLE=true
+       addons:
+         apt:
+            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
+            packages: [ 'clang-3.5']
+     - os: linux
+       compiler: clang
+       env: NODE_VERSION="2.4.0" PUBLISHABLE=true
+       addons:
+         apt:
+            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
+            packages: [ 'clang-3.5']
+     - os: linux
+       compiler: clang
+       env: NODE_VERSION="1.8.4" PUBLISHABLE=true
+       addons:
+         apt:
+            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
+            packages: [ 'clang-3.5']
+     - os: linux
+       compiler: clang
+       env: NODE_VERSION="0.12.7" PUBLISHABLE=true
+       addons:
+         apt:
+            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
+            packages: [ 'clang-3.5']
+     - os: linux
+       compiler: clang
+       env: NODE_VERSION="0.10.40" PUBLISHABLE=true
+       addons:
+         apt:
+            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
+            packages: [ 'clang-3.5']
+     # test building against external sqlite
+     - os: linux
+       compiler: clang
+       env: NODE_VERSION="0.10.40" EXTERNAL_SQLITE=true
+       addons:
+         apt:
+            sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
+            packages: [ 'clang-3.5','libsqlite3-dev']
+     # OS X
+     - os: osx
+       compiler: clang
+       env: NODE_VERSION="3.1.0" # node abi 45
+     - os: osx
+       compiler: clang
+       env: NODE_VERSION="2.4.0" # node abi 44
+     - os: osx
+       compiler: clang
+       env: NODE_VERSION="1.8.4" # node abi 43
+     - os: osx
+       compiler: clang
+       env: NODE_VERSION="0.12.7" # node abi 14
+     - os: osx
+       compiler: clang
+       env: NODE_VERSION="0.10.40" # node abi 11
+
 env:
-  matrix:
-   - NODE_VERSION="0.10.40" # ABI 11
-   - NODE_VERSION="0.12.7" # ABI 14
-   - NODE_VERSION="iojs-1.8.4" # ABI 43
-   - NODE_VERSION="iojs-2.3.4" # ABI 44
-   - NODE_VERSION="iojs-3.1.0" # ABI 45
-   - NODE_WEBKIT="0.8.6" TARGET_ARCH="ia32"
-   - NODE_WEBKIT="0.8.6" TARGET_ARCH="x64"
-   - NODE_WEBKIT="0.10.5" TARGET_ARCH="ia32"
-   - NODE_WEBKIT="0.10.5" TARGET_ARCH="x64"
   global:
+   - JOBS: "8"
     - secure: PifMOSnn+mWR1RUptXse+fLvWiTrzg0R/mazO7RWhXHWBKv0uAJ/qV3dI0GIRBLtjG10Iy+tT5RNh1TIbBzB9Y67wMcGvylUPG1+3EOKoBMEPnOD9AgCEQw4SOXfGPx0cq2N6ueSKieCgu1yKN9Wq7XCbE+zTk/DiRNIdLirVoo=
     - secure: cc4esJY1vPXL31IeumAJoKWDDO2BTGFiltwfO1jbTbiV7QT911QUjTUasxXIVpOaHNCpxSTyevPwwTWfzt2EtF92Lli+qhQ2bbzMiDSBZstSrHdAe62Ai2M1oYYUwk/0cABB/2nO9uRyYwITCxpTSNzZBrYhn3C29WqBhPeVDmM=
 
-matrix:
-  exclude:
-    - env: NODE_WEBKIT="0.8.6" TARGET_ARCH="x64"
-      os: osx
-
 before_install:
-- if [[ $TRAVIS_OS_NAME == "linux" ]]; then export CXX=g++-4.8; fi
-# check if tag exists and matches package.json
+- if [[ $(uname -s) == 'Linux' ]]; then
+     export CXX="clang++-3.5";
+     export CC="clang-3.5";
+  fi;
 - scripts/validate_tag.sh
-- echo $NODE_VERSION
-# upgrade nvm
-- node --version
-- npm --version
-- npm update -g npm
-- npm --version
+- source ./scripts/install_node.sh ${NODE_VERSION}
 
 install:
 # put node-pre-gyp on path
@@ -59,4 +106,5 @@ before_script:
 
 script:
 - if [[ "${NODE_VERSION}" ]]; then ./scripts/build_against_node.sh; fi;
-- if [[ "${NODE_WEBKIT}" ]]; then ./scripts/build_against_node_webkit.sh; fi;
+# disabled for now: need to port to sudo:false
+#- if [[ "${NODE_WEBKIT}" ]]; then ./scripts/build_against_node_webkit.sh; fi;

scripts/build_against_node.sh

 #!/usr/bin/env bash
 
-if [[ ! -d ../.nvm ]]; then
-    git clone https://github.com/creationix/nvm.git ../.nvm
-fi
-source ../.nvm/nvm.sh
-nvm install $NODE_VERSION
-nvm use $NODE_VERSION
-
-set -u -e
+set -e -u
 
 function publish() {
-    if test "${COMMIT_MESSAGE#*'[publish binary]'}" != "$COMMIT_MESSAGE"; then
+    if [[ ${PUBLISHABLE} == true ]] && [[ ${COMMIT_MESSAGE} =~ "[publish binary]" ]]; then
+        node-pre-gyp package testpackage
         node-pre-gyp publish
         node-pre-gyp info
-        node-pre-gyp clean
         make clean
-        # now install from binary
-        INSTALL_RESULT=$(npm install --fallback-to-build=false > /dev/null)$? || true
-        # if install returned non zero (errored) then we first unpublish and then call false so travis will bail at this line
-        if [[ $INSTALL_RESULT != 0 ]]; then echo "returned $INSTALL_RESULT";node-pre-gyp unpublish;false; fi
-        # If success then we arrive here so lets clean up
-        node-pre-gyp clean
     fi
 }
 
 # test installing from source
 npm install --build-from-source
-node-pre-gyp package testpackage
 npm test
 
 publish
@@ -36,8 +22,6 @@ if [[ $(uname -s) == 'Darwin' ]]; then
     brew install sqlite
     npm install --build-from-source --sqlite=$(brew --prefix)
 else
-    sudo apt-get -qq update
-    sudo apt-get -qq install libsqlite3-dev
     npm install --build-from-source --sqlite=/usr
 fi
 npm test
@@ -45,7 +29,6 @@ npm test
 platform=$(uname -s | sed "y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/")
 
 if [[ $(uname -s) == 'Linux' ]]; then
-    sudo apt-get -y install gcc-multilib g++-multilib
     # node v0.8 and above provide pre-built 32 bit and 64 bit binaries
     # so here we use the 32 bit ones to also test 32 bit builds
     NVER=`node -v`
@@ -73,7 +56,6 @@ if [[ $(uname -s) == 'Linux' ]]; then
     # broken for some unknown reason against io.js
     if [[ ${NODE_VERSION:0:4} != 'iojs' ]]; then
         # test source compile in 32 bit mode against external libsqlite3
-        sudo apt-get -y install libsqlite3-dev:i386
         CC=gcc-4.6 CXX=g++-4.6 npm install --build-from-source --sqlite=/usr
         npm test
     fi