osx: implement workaround script to change cwd to home dir when launching app from Finder, but leave at current dir when running from command line

Author: robhagemans

packaging/osx/Info.plist

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict><key>CFBundleShortVersionString</key>
+<string>0.0.0</string>
+<key>CFBundleExecutable</key>
+<string>MacOS/launcher.sh</string>
+<key>CFBundleName</key>
+<string>PC-BASIC</string>
+<key>CFBundleInfoDictionaryVersion</key>
+<string>6.0</string>
+<key>CFBundleDisplayName</key>
+<string>PC-BASIC</string>
+<key>CFBundleIconFile</key>
+<string>pcbasic.icns</string>
+<key>CFBundlePackageType</key>
+<string>APPL</string>
+<key>LSBackgroundOnly</key>
+<string>1</string>
+</dict>
+</plist>

packaging/osx/build.sh

@@ -1,5 +1,9 @@
 NAME="pcbasic-$1-osx"
 pyinstaller installer.spec
+# replace executable started by Finder with workaround script to set cwd
+cp launcher.sh dist/PC-BASIC.app/Contents/MacOS/
+cp Info.plist dist/PC-BASIC.app/Contents/
+# build compressed DMG image
 hdiutil create -srcfolder dist/PC-BASIC.app -volname "PC-BASIC release $1" $NAME.uncompressed.dmg
 hdiutil convert $NAME.uncompressed.dmg -format UDZO -imagekey zlib-level=9 -o $NAME.dmg
 rm $NAME.uncompressed.dmg

packaging/osx/launcher.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+DIR="$PWD/`dirname "$0"`"
+cd ~
+"$DIR/pcbasic" $@