Force APT cache update before executing install

Author: marcoabreu

ci/docker/install/ubuntu_caffe.sh

@@ -18,6 +18,7 @@
 # under the License.
 set -ex
 
+apt-get update || true
 apt-get install -y \
     libgflags-dev \
     libgoogle-glog-dev \

ci/docker/install/ubuntu_clang.sh

@@ -21,6 +21,8 @@
 # the whole docker cache for the image
 
 set -ex
+
+apt-get update || true
 # Install clang 3.9 (the same version as in XCode 8.*) and 6.0 (latest major release)
 wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add - && \
     apt-add-repository "deb http://apt.llvm.org/xenial/ llvm-toolchain-xenial-3.9 main" && \

ci/docker/install/ubuntu_core.sh

@@ -21,7 +21,7 @@
 # the whole docker cache for the image
 
 set -ex
-apt-get update
+apt-get update || true
 apt-get install -y \
     apt-transport-https \
     build-essential \

ci/docker/install/ubuntu_docs.sh

@@ -23,6 +23,7 @@
 set -ex
 # Install dependencies
 echo 'Installing dependencies...'
+apt-get update || true
 apt-get install -y \
     doxygen \
     pandoc

ci/docker/install/ubuntu_emscripten.sh

@@ -25,6 +25,7 @@
 
 set -ex
 
+apt-get update || true
 apt-get -y install nodejs
 
 git clone -b 1.38.6 https://github.com/kripken/emscripten.git

ci/docker/install/ubuntu_gcc8.sh

@@ -19,5 +19,5 @@
 
 sudo add-apt-repository ppa:jonathonf/gcc-8.0
 sudo add-apt-repository ppa:jonathonf/gcc-7.3
-sudo apt-get update
+sudo apt-get update || true
 sudo apt-get install -y gcc-8 g++-8

ci/docker/install/ubuntu_llvm.sh

@@ -23,4 +23,5 @@ echo deb-src http://apt.llvm.org/xenial/ llvm-toolchain-xenial-5.0 main\
      >> /etc/apt/sources.list.d/llvm.list
 
 wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key|sudo apt-key add -
-apt-get update && apt-get install -y --force-yes llvm-5.0
+apt-get update || true
+apt-get install -y --force-yes llvm-5.0

ci/docker/install/ubuntu_nightly_tests.sh

@@ -25,7 +25,7 @@ set -ex
 # Adding ppas frequently fails due to busy gpg servers, retry 5 times with 5 minute delays.
 for i in 1 2 3 4 5; do add-apt-repository -y ppa:ubuntu-toolchain-r/test && break || sleep 300; done
 
-apt-get update
+apt-get update || true
 apt-get -y install time
 
 # Install for RAT License Check Nightly Test

ci/docker/install/ubuntu_npm_blc.sh

@@ -22,7 +22,7 @@
 
 set -ex
 echo 'Installing npm...'
-apt-get update
+apt-get update || true
 apt-get install -y npm
 
 echo "Obtaining NodeJS version 8.x"

ci/docker/install/ubuntu_nvidia.sh

@@ -18,6 +18,7 @@
 # under the License.
 
 set -ex
+apt-get update || true
 apt install -y software-properties-common
 
 # Adding ppas frequently fails due to busy gpg servers, retry 5 times with 5 minute delays.