setup-environment: symlink system wide .ssh and .gitconfig

toolchain/configuration-symlinks.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+USERPROFILEPATH="$(cygpath $USERPROFILE)"
+
+# link .gitconfig and .ssh from local home to system wide configuration if there's none yet
+if [[ (-L ~/.gitconfig || ! -e ~/.gitconfig) && -e "$USERPROFILEPATH/.gitconfig" ]]; then
+	ln -sf $USERPROFILEPATH/.gitconfig ~/.gitconfig
+fi
+
+if  [[ (-L ~/.ssh || ! -e ~/.ssh) && -e "$USERPROFILEPATH/.ssh" ]]; then
+	ln -sf $USERPROFILEPATH/.ssh ~/.ssh
+fi

toolchain/setup-environment-variables.bat

@@ -25,3 +25,6 @@ REM home directory for the unix environment
 SET HOME=%PX4_DIR%\home
 REM also set it for cygwin in general to make ssh happy
 CALL bash -c "sed -i '/db_home:/c\db_home:  '$HOME /etc/nsswitch.conf"
+
+REM create optional symlinks to system wide .gitconfig and .ssh
+CALL bash %PX4_DIR%\toolchain\configuration-symlinks.sh