.github: Do not fail on existing directories

Author: Jakuje

.github/setup-java.sh

@@ -13,12 +13,16 @@ env | grep -i openjdk
 ./.github/setup-vsmartcard.sh
 
 # Javacard SDKs
-git clone https://github.com/martinpaljak/oracle_javacard_sdks.git
+if [ ! -d "oracle_javacard_sdks" ]; then
+	git clone https://github.com/martinpaljak/oracle_javacard_sdks.git
+fi
 export JC_HOME=$PWD/oracle_javacard_sdks/jc222_kit
 export JC_CLASSIC_HOME=$PWD/oracle_javacard_sdks/jc305u3_kit
 
 # jCardSim
-git clone https://github.com/arekinath/jcardsim.git
+if [ ! -d "jcardsim" ]; then
+	git clone https://github.com/arekinath/jcardsim.git
+fi
 pushd jcardsim
 env | grep -i openjdk
 export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/

.github/test-piv.sh

@@ -10,15 +10,21 @@ export LD_LIBRARY_PATH=/usr/local/lib
 . .github/setup-java.sh
 
 # The PIV Applet
-git clone --recursive https://github.com/arekinath/PivApplet.git
+if [ ! -d "PivApplet" ]; then
+	git clone --recursive https://github.com/arekinath/PivApplet.git
+fi
 pushd PivApplet
 JC_HOME=${JC_CLASSIC_HOME} ant dist
 popd
 
 # yubico-piv-tool is needed for PIV Applet management 
-git clone https://github.com/Yubico/yubico-piv-tool.git
+if [ ! -d "yubico-piv-tool" ]; then
+	git clone https://github.com/Yubico/yubico-piv-tool.git
+fi
 pushd yubico-piv-tool
-mkdir build
+if [ ! -d "build" ]; then
+	mkdir build
+fi
 pushd build
 cmake .. && make && sudo make install
 popd