Reword macos readme package, mention full file list

.gitignore

@@ -10,9 +10,7 @@ android/.server/
 android/.client/
 codeBlocks
 
-# Visual Studio files
-*.vcxproj.user
-windows/JackRouter/.vs
-windows/JackRouter/Debug
-windows/JackRouter/Release
-windows/JackRouter/Release64
+# macos release files
+macos/package.xml
+macos/package-welcome.txt
+

macosx/generate-pkg.sh

@@ -33,7 +33,14 @@ pkgbuild \
 
 # https://developer.apple.com/library/content/documentation/DeveloperTools/Reference/DistributionDefinitionRef/Chapters/Distribution_XML_Ref.html
 
+pushd "${installed_prefix}"
+mkdir -p share/jack2
+touch share/jack2/jack2-osx-files.txt
+find -sL . -type f | awk 'sub("./","/usr/local/")' > share/jack2/jack2-osx-files.txt
+popd
+
 sed -e "s|@CURDIR@|${PWD}|" package.xml.in > package.xml
+cat package-welcome.txt.in "${installed_prefix}/share/jack2/jack2-osx-files.txt" > package-welcome.txt
 
 productbuild \
 	--distribution package.xml \

macosx/package-welcome.txt → macosx/package-welcome.txt.in

@@ -8,4 +8,11 @@ It also includes the necessary files for developers to build with JACK support.
 All files will be installed under /usr/local/.
 
 
-The previously packaged JackRouter plugin is not available at this point.
+Please note that this package will not delete previously installed jackosx contents.
+If you used that before, please run its own uninstaller before installing this package!
+
+Also, the previously packaged JackRouter plugin is not available at this point.
+
+
+For advanced/curious users, here is the full file list that this package provides:
+