disabled log removal, del old build files on startup, shellcheck fixes

setupFiles/install.sh

@@ -1,14 +1,18 @@
 #! /bin/bash
-
 # Adapted from github.com/gkilleen33/overleaf-offline under the MIT license
 
-# Add build files to gitignore
-cd /app/project
+# CD into the main directory
+cd /app/project || exit 2
 
-if test -f ".autoltx"; then
-    echo AutoLTX already installed, skipping steup
+if test -d "pdf/"; then
+    rm -r pdf/
+fi
+
+# Update old installation
+if test -f ".autoltxXenon"; then # Intentional wrong file name checking, to ensure the files are updated everytime the container starts. To implement version checking in later version.
+  echo AutoLTX already installed, skipping steup
 else
-if test -f ".gitignore"; then
+  if test -f ".gitignore"; then
     # Adding build files to .gitignore
     grep -qxF 'pdf/' .gitignore || echo 'pdf/' >> .gitignore
     grep -qxF 'latexmkrc' .gitignore || echo 'latexmkrc' >> .gitignore
@@ -17,18 +21,16 @@ if test -f ".gitignore"; then
     grep -qxF 'output.pdf' .gitignore || echo 'output.pdf' >> .gitignore
     touch .autoltx
     echo Configuring AutoLTX for this project
-else
+  else
     # Creating .gitignore file
     printf 'pdf/\nlatexmkrc\ncompile.sh\n.autoltx\noutput.pdf\n' >> .gitignore
     touch .autoltx
-fi
-
-# mkdir -p pdf/config
-
-# Add latexmk rc file to build files
-cp /app/setupFiles/latexmkrc /app/project/
-
-# Add compile script to build files
-cp /app/setupFiles/compile.sh /app/project
-chmod +x compile.sh
+  fi
+
+  # Add latexmk rc file to build files
+  cp /app/setupFiles/latexmkrc /app/project/
+
+  # Add compile script to build files
+  cp /app/setupFiles/compile.sh /app/project
+  chmod +x compile.sh
 fi