chore: create build artifacts for each commit (#2082)

* chore: create build artifacts for each commit

* Switch to new npm package

* Update version to latest

* Publish the builds after all modes succeeded.

* Address comments

* Change snake_case to camelCase

scripts/ci/after-success.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Script which always runs when the current Travis mode succeeds.
+# Used to run the travis-after-modes script, which checks if all other modes finished.
+
+# Go to the project root directory
+cd $(dirname $0)/../..
+
+npmBin=$(npm bin)
+ciResult=$($npmBin/travis-after-modes)
+
+if [ "$ciResult" = "PASSED" ] && [ -z "$TRAVIS_PULL_REQUEST" ]; then
+  echo "All travis modes passed. Publishing the build artifacts..."
+  ./scripts/release/publish-build-artifacts.sh
+fi

scripts/release/publish-build-artifacts.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Script to publish the build artifacts to a GitHub repository.
+# Builds will be automatically published once new changes are made to the repository.
+
+# Go to the project root directory
+cd $(dirname $0)/../..
+
+buildDir="dist/@angular/material"
+buildVersion=$(sed -nE 's/^\s*"version": "(.*?)",$/\1/p' package.json)
+
+commitSha=$(git rev-parse --short HEAD)
+commitAuthor=$(git --no-pager show -s --format='%an <%ae>' HEAD)
+commitMessage=$(git log --oneline | head -n1)
+
+repoName="material-builds"
+repoUrl="http://github.com/DevVersion/material-builds.git"
+repoDir="tmp/$repoName"
+
+# Create a release of the current repository.
+$(npm bin)/gulp build:release
+
+# Prepare cloning the builds repository
+rm -rf $repoDir
+mkdir -p $repoDir
+
+# Clone the repository
+git clone $repoUrl $repoDir
+
+# Copy the build files to the repository
+rm -rf $repoDir/*
+cp -r $buildDir/* $repoDir
+
+# Create the build commit and push the changes to the repository.
+cd $repoDir &&
+
+# Setup the git repository authentication.
+git config credential.helper "store --file=.git/credentials" &&
+echo "$MATERIAL2_BUILDS_TOKEN" > .git/credentials
+
+git add -A &&
+git commit -m "$commitMessage" --author "$commitAuthor" &&
+git tag "$buildVersion-$commitSha" &&
+git push origin master --tags
+
+echo "Finished publishing build artifacts"