From ca690632e9273421f03f77ed9d31fe3ada6408b8 Mon Sep 17 00:00:00 2001
From: Stephen Gaito <stephen@perceptisys.co.uk>
Date: Tue, 26 Nov 2019 07:52:30 +0000
Subject: [PATCH] check for existing docker commands before trying to create
 docker

---
 buildScripts/createDockerImage | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/buildScripts/createDockerImage b/buildScripts/createDockerImage
index f9f2cda..226aa08 100755
--- a/buildScripts/createDockerImage
+++ b/buildScripts/createDockerImage
@@ -2,33 +2,38 @@
 
 # This bash script creates a docker image from an existing pdf2htmlEX
 
-source buildScripts/versionEnvs
+if [ -x "$(which docker)" ]; then
 
-source buildScripts/dockerFunctions
+  source buildScripts/versionEnvs
 
-mkdir -p imageBuild/dockerDir
+  source buildScripts/dockerFunctions
 
-cd pdf2htmlEX/build
+  mkdir -p imageBuild/dockerDir
 
-sudo rm -rf install_manifest.txt
+  cd pdf2htmlEX/build
 
-make install DESTDIR=../../imageBuild/dockerDir
+  sudo rm -rf install_manifest.txt
 
-cd ../../imageBuild/dockerDir
+  make install DESTDIR=../../imageBuild/dockerDir
 
-copy_deps
+  cd ../../imageBuild/dockerDir
 
-delete_blacklisted
+  copy_deps
 
-cat >> Dockerfile <<DOCKERFILE_HERE_DOC
+  delete_blacklisted
+
+  cat >> Dockerfile <<DOCKERFILE_HERE_DOC
 FROM $DOCKER_FROM
 COPY ./ /
 RUN ldconfig
 ENTRYPOINT ["/usr/bin/pdf2htmlEX"]
 DOCKERFILE_HERE_DOC
 
-cd ..
+  cd ..
 
-docker build -t stephengaito/pdf2htmlex:test-`date +%Y%m%d-%H.%M.%S` dockerDir
+  docker build -t stephengaito/pdf2htmlex:test-`date +%Y%m%d-%H.%M.%S` dockerDir
 
+else
+  echo "Docker is not installed... skipping creation of a docker image."
+fi