update doc generation script so it doesn't drop branch docs

.travis.yml

@@ -22,5 +22,5 @@ script:
 jobs:
     include:
         - stage: Publish docs
-          if: type = push AND fork = false AND tag IS blank AND branch = master
+          if: type = push AND fork = false AND tag IS blank AND !(branch =~ /^dependabot\//)
           script: lerna bootstrap && lerna run build && scripts/travis/publishDocs.sh

scripts/travis/publishDocs.sh

@@ -1,14 +1,28 @@
 #!/bin/bash
 
 set -e
+shopt -s extglob
 
 REPO_USER="${TRAVIS_REPO_SLUG%/*}"
 
-npm run docs -- --base-url "/"
+if [[ $TRAVIS_BRANCH = "master" ]]; then
+	BASE_URL="/"
+else
+	BASE_URL="/branches/${TRAVIS_BRANCH}/"
+fi
+
+npm run docs -- --base-url "${BASE_URL}"
 
 git clone "https://${GH_TOKEN}@github.com/${REPO_USER}/${REPO_USER}.github.io.git" docRepo
-rm -rfv docRepo/*
-mv -fv generatedDocs/* docRepo/
+
+if [[ $TRAVIS_BRANCH = "master" ]]; then
+	GLOBIGNORE="branches" rm -rfv docRepo/*
+	mv -fv generatedDocs/* docRepo/
+else
+	rm -rfv docRepo/branches/"${TRAVIS_BRANCH}"/*
+	mkdir -pv "docRepo/branches/${TRAVIS_BRANCH}"
+	mv -fv generatedDocs/* "docRepo/branches/${TRAVIS_BRANCH}"
+fi
 
 cd docRepo
 
@@ -17,6 +31,6 @@ git config user.name "Travis CI"
 
 if [[ $(git status --porcelain) ]]; then
 	git add .
-	git commit -m "Travis build: ${TRAVIS_BUILD_NUMBER}"
+	git commit -m "Travis build ${TRAVIS_BUILD_NUMBER}, branch ${TRAVIS_BRANCH}"
 	git push --quiet --set-upstream origin master
 fi