Tidying

src/freedombone-app-peertube

 apt-get -y update
 apt-get -yq install yarn
 
-#npm install --arch=$NPM_ARCH -g yarn@1.5.1
-#if [ ! "\$?" = "0" ]; then
+#if ! npm install --arch=$NPM_ARCH -g yarn@1.5.1; then
 #    echo $'PeerTube Failed to install yarn'
 #    exit 79353234
 #fi
-#npm install --arch=$NPM_ARCH webpack@3.10.0 --no-optional
-#if [ ! "\$?" = "0" ]; then
+#if ! npm install --arch=$NPM_ARCH webpack@3.10.0 --no-optional; then
 #    echo $'PeerTube failed to install webpack'
 #    exit 68386353
 #fi
 yarn install
 yarn run build:prod
-yarn add -D webpack
-if [ ! "\$?" = "0" ]; then
+if ! yarn add -D webpack; then
     echo $'PeerTube failed to add webpack'
     exit 67342823
 fi
-yarn install --ignore-optional
-if [ ! "\$?" = "0" ]; then
+if ! yarn install --ignore-optional; then
     echo $'PeerTube failed to run yarn install'
     exit 63754235
 fi
     exit 3476835
 fi
 cp /root/.npm-global/bin/npm /usr/local/bin/npm
-npm install --arch=$NPM_ARCH
-if [ ! "\$?" = "0" ]; then
+if ! npm install --arch=$NPM_ARCH; then
     echo $'PeerTube failed to install peertube'
     exit 7835243
 fi
     exit 5737583
 fi
 cp /root/.npm-global/bin/npm /usr/local/bin/npm
-npm run build --arch=$NPM_ARCH
-if [ ! "\$?" = "0" ]; then
+if ! npm run build --arch=$NPM_ARCH; then
     echo $'PeerTube failed to build peertube'
     exit 5293593
 fi