Improved Travis build

.travis.yml

@@ -54,15 +54,16 @@ env:
 before_install:
   - export PATH=$PATH:~/bin;
   - 'echo $TRAVIS_PHP_VERSION'
+  - composer self-update -q
   - travis_retry composer --prefer-source install
   - travis_retry composer require phalcon/zephir:dev-master
   - bash tests/_ci/install_prereqs.sh
   - bash tests/_ci/setup_dbs.sh
   - bash tests/_ci/install_zephir.sh
   - bash tests/_ci/install_beanstalkd.sh
   - zephir help
-  - 'if [ "$TRAVIS_PHP_VERSION" != "7.0" ]; then zephir generate; else echo "$TRAVIS_PHP_VERSION"; fi;'
-  - 'if [ "$TRAVIS_PHP_VERSION" = "7.0" ]; then zephir generate --backend=ZendEngine3; else echo "$TRAVIS_PHP_VERSION"; fi;'
+  - '[[ "$TRAVIS_PHP_VERSION" == "7.0" ]] || zephir generate'
+  - '[[ "$TRAVIS_PHP_VERSION" != "7.0" ]] || zephir generate --backend=ZendEngine3'
 
 before_script:
   - (export PRE_PHP_INCLUDES=`php-config --includes`; cd ext/; for file in `find kernel -name "*.h"`; do $CC "$file" -I. $PRE_PHP_INCLUDES -o "$file.ghc"; done)

tests/_ci/install_zephir.sh

@@ -1,14 +1,12 @@
 #!/usr/bin/env bash
 
-cd vendor/phalcon/zephir
+cd ${TRAVIS_BUILD_DIR}/vendor/phalcon/zephir
 
 ZEPHIRDIR="$( cd "$( dirname . )" && pwd )"
 sed "s#%ZEPHIRDIR%#$ZEPHIRDIR#g" bin/zephir > bin/zephir-cmd
 chmod 755 bin/zephir-cmd
 
-if [ ! -d ~/bin ]; then
-	mkdir ~/bin
-fi
+mkdir -p ~/bin
 
 cp bin/zephir-cmd ~/bin/zephir
 rm bin/zephir-cmd