[docs] Fix up build, really

.ci/deploy-docs.sh

+#!/bin/bash
 
-set -o errexit -o nounset
 set -x
+set -o errexit -o nounset
 
-if test "$TRAVIS_OS_NAME" != "linux" -o "$CC" != "gcc" -o "$TRAVIS_SECURE_ENV_VARS" != "true"; then exit; fi
-
-BRANCH="$(TRAVIS_BRANCH)"
+BRANCH="$TRAVIS_BRANCH"
 if test "x$BRANCH" != xmaster; then exit; fi
 
-TAG="$(git describe --exact-match --match "[0-9]*" HEAD 2>/dev/null)"
+TAG="$(git describe --exact-match --match "[0-9]*" HEAD 2>/dev/null || true)"
 
 DOCSDIR=build-docs
 REVISION=$(git rev-parse --short HEAD)

.travis.yml

@@ -30,7 +30,7 @@ script:
   - make check
   - if [ "$TRAVIS_OS_NAME" == "linux" -a "$CC" == "gcc" ]; then rm -f src/.libs/NONE.gcov; touch src/NONE; coveralls -e docs; fi
 after_success:
-  - bash .ci/deploy-docs.sh
+  - if [ "$TRAVIS_OS_NAME" == "linux" -a "$CC" == "gcc" -a "$TRAVIS_SECURE_ENV_VARS" == "true" ]; then bash .ci/deploy-docs.sh; fi
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