[travis] Update pipeline

.travis.yml

@@ -28,9 +28,11 @@ script:
   - ./tests/seahubtests.sh init && ./tests/seahubtests.sh runserver && ./tests/seahubtests.sh test
 
 after_success:
-  - .travis/rebuild-branches.sh
-  - ./tests/seahubtests.sh dist
-  - .travis/dist_and_push.sh
+  # notify seafile-docs to rebuild if current branch(6.3) is updated
+  - test $TRAVIS_PULL_REQUEST != "false" && test $TRAVIS_BRANCH = "6.3" && .travis/rebuild-branches.sh
+
+  # making dist assets if current branch(master/6.3/6.2) is updated
+  - test $TRAVIS_PULL_REQUEST != "false" && .travis/dist_and_push.sh
 
 after_failure: true
 

.travis/dist_and_push.sh

@@ -1,20 +1,35 @@
-#!/bin/sh
+#!/bin/bash
+: ${PYTHON=python}
 
-commit_media_files() {
+set -e
+if [[ ${TRAVIS} != "" ]]; then
+    set -x
+fi
+
+set -x
+SEAHUB_TESTSDIR=$(python -c "import os; print os.path.dirname(os.path.realpath('$0'))")
+SEAHUB_SRCDIR=$(dirname "${SEAHUB_TESTSDIR}")
+
+export PYTHONPATH="/usr/local/lib/python2.7/site-packages:/usr/lib/python2.7/site-packages:${SEAHUB_SRCDIR}/thirdpart:${PYTHONPATH}"
+cd "$SEAHUB_SRCDIR"
+set +x
+
+function commit_dist_files() {
   git checkout -b dist-$TRAVIS_BRANCH
   git add -u . && git add -A media/assets && git add -A static/scripts
   git commit -m "[dist] Travis build: #$TRAVIS_BUILD_NUMBER, based on commit $TRAVIS_COMMIT." -m "https://travis-ci.org/haiwen/seahub/builds/$TRAVIS_BUILD_ID" -m "$TRAVIS_COMMIT_MESSAGE"
 }
 
-upload_files() {
+function upload_files() {
     git push git@github.com:haiwen/seahub.git dist-$TRAVIS_BRANCH -f
 }
 
-make_dist() {
+function make_dist() {
+    echo "Making dist files ..."
     make dist
 }
 
 
-# make_dist
-commit_media_files
+make_dist
+commit_dist_files
 upload_files

.travis/rebuild-branches.sh

@@ -1,10 +1,5 @@
 #!/bin/sh
 
-# seafile-docs branch rebuild is triggered only if the 6.3 branch status is successful
-if [ $TRAVIS_BRANCH != "6.3" ]; then
-    exit
-fi;
-
 body='{
 "request": {
 "branch":"seafile-docs"