ci(fix): resolve diff exit, add options for debugging

scripts/file_license_check.sh

@@ -5,13 +5,16 @@
 
 set -e
 
+diffparms="-u --suppress-blank-empty --strip-trailing-cr --color=never"
+
+rgTemp=${rgTemp:-$(mktemp)}
+
 # rg -i "Copyright.*The Tari Project" --files-without-match \
 #    -g '!*.{Dockerfile,asc,bat,config,config.js,css,csv,drawio,env,gitkeep,hbs,html,ini,iss,json,lock,md,min.js,ps1,py,rc,scss,sh,sql,svg,toml,txt,yml,vue}' . \
 #    | sort > /tmp/rgtemp
 
 # Exclude files without extensions as well as those with extensions that are not in the list
 #
-rgTemp=$(mktemp)
 rg -i "Copyright.*The Tari Project" --files-without-match \
     -g '!*.{Dockerfile,asc,bat,config,config.js,css,csv,drawio,env,gitkeep,hbs,html,ini,iss,json,lock,md,min.js,ps1,py,rc,scss,sh,sql,svg,toml,txt,yml,vue}' . \
     | while IFS= read -r file; do
@@ -21,20 +24,21 @@ rg -i "Copyright.*The Tari Project" --files-without-match \
     done | sort > ${rgTemp}
 
 # Sort the .license.ignore file as sorting seems to behave differently on different platforms
-licenseIgnoreTemp=$(mktemp)
+licenseIgnoreTemp=${licenseIgnoreTemp:-$(mktemp)}
 cat .license.ignore | sort > ${licenseIgnoreTemp}
 
-DIFFS=$(diff -u --strip-trailing-cr ${licenseIgnoreTemp} ${rgTemp})
+DIFFS=$( diff ${diffparms} ${licenseIgnoreTemp} ${rgTemp} || true )
 
 # clean up
 rm -vf ${rgTemp}
 rm -vf ${licenseIgnoreTemp}
 
-if [ -n "$DIFFS" ]; then
-    echo "New files detected that either need copyright/license identifiers added, or they need to be added to .license.ignore"
+if [ -n "${DIFFS}" ]; then
+    echo "New files detected that either need copyright/license identifiers added, "
+    echo "or they need to be added to .license.ignore"
     echo "NB: The ignore file must be sorted alphabetically!"
 
     echo "Diff:"
-    echo "$DIFFS"
+    echo "${DIFFS}"
     exit 1
 fi