Move qpdf to before_script

.travis.yml

@@ -61,15 +61,10 @@ before_cache:
 
 before_install: |
   if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
-    bash .travis/linux_before_install.sh
     pip install --upgrade pip
     mkdir -p packages bin
     wget -q 'https://www.dropbox.com/s/vaq0kbwi6e6au80/unpaper_6.1-1.deb?raw=1' -O packages/unpaper_6.1-1.deb
     sudo dpkg -i packages/unpaper_6.1-1.deb
-    wget -q 'https://github.com/qpdf/qpdf/releases/download/release-qpdf-8.0.2/qpdf-8.0.2-x86_64.AppImage' -O bin/qpdf.AppImage
-    chmod +x bin/qpdf.AppImage
-    ln -s qpdf.AppImage bin/qpdf
-    export PATH=$(pwd)/bin:$PATH
   elif [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
     brew update && brew bundle --file=.travis/Brewfile
     pip3 install --upgrade pip
@@ -80,6 +75,13 @@ install:
 - pip3 install ".$EXTRAS"
 - pip3 install -r test_requirements.txt
 
+before_script: |
+  if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
+    wget -q 'https://github.com/qpdf/qpdf/releases/download/release-qpdf-8.0.2/qpdf-8.0.2-x86_64.AppImage' -O bin/qpdf
+    chmod +x bin/qpdf
+    export PATH=$PWD/bin:$PATH
+  fi
+
 script:
 - tesseract --version
 - qpdf --version