Publish Vulpes Preview 15 sources for desktop, Android and Tundra

Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.

gaia/build/docker/gaia-taskenv/bin/entrypoint

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+#! /bin/bash -e
+
+source ./bin/buildbot_step
+
+Xvfb :0 -nolisten tcp -screen 0 1600x1200x24 2>/dev/null &
+export DISPLAY=:0
+
+checkout_path="$PWD/git_checkout"
+
+# Handle initial clone and caching of the initial clone...
+step_checkout() {
+  # Extract the cached clone (this is kept as a tarball to always keep a clean
+  # working state without worrying about tree issues).
+  if [ "$GITHUB_PULL_REQUEST" == "1" ];
+  then
+    tc-vcs checkout $checkout_path \
+      $GITHUB_BASE_GIT \
+      $GITHUB_HEAD_GIT \
+      $GITHUB_HEAD_BRANCH
+  else
+    tc-vcs checkout $checkout_path \
+      $GITHUB_BASE_GIT \
+      $GITHUB_HEAD_GIT
+  fi
+}
+
+# Set-up our npm-cache.
+step_npm_cache() {
+  taskcluster-npm-cache-get --namespace gaia.npm_cache ./package.json
+}
+
+buildbot_step 'git checkout' step_checkout
+
+# From here on we to operate inside of the actual checkout mostly for
+# convenience.
+cd $checkout_path
+
+# Current revision...
+buildbot_step 'git revision...' git --no-pager log -n 1
+
+# node modules
+buildbot_step 'npm-cache-get' step_npm_cache
+
+# virtualenv setup so any python packages can be abused without root access
+buildbot_step 'virtualenv' virtualenv $HOME/.venv --system-site-packages
+source $HOME/.venv/bin/activate
+
+# run whatever command was intended on the branch (root of the repo)
+buildbot_step "run $*" $@