[docs] Shuffling code around in deploy-docs.sh

Temporarily makes it rebuild docs on every change again.

.ci/deploy-docs.sh

@@ -1,11 +1,20 @@
-TAG="$(git describe --exact-match --match "[0-9]*" HEAD 2>/dev/null)"
 
 set -o errexit -o nounset
 
-if [ "$TRAVIS_OS_NAME" == "linux" -a "$CC" == "gcc" -a "$TRAVIS_SECURE_ENV_VARS" == "true" -a "$TAG" != "" ]
-then
-	DOCSDIR=build-docs
+if [ "$TRAVIS_OS_NAME" != "linux" -o "$CC" != "gcc" -o "$TRAVIS_SECURE_ENV_VARS" != "true" ]; then
+	exit
+fi
+
+BRANCH="$(TRAVIS_BRANCH)"
+TAG="$(git describe --exact-match --match "[0-9]*" HEAD 2>/dev/null)"
+
+if [ "x$TAG" == x ]; then
 	REVISION=$(git rev-parse --short HEAD)
+else
+	REVISION=$TAG
+fi
+
+DOCSDIR=build-docs
 
 rm -rf $DOCSDIR || exit
 mkdir $DOCSDIR
@@ -24,4 +33,3 @@ then
 git add -A .
 git commit -m "Rebuild docs for $REVISION"
 git push -q upstream HEAD:gh-pages
-fi