Use pkg_info -E pkgname* for testing if a package is installed.
Do not call eval if we cannot include an .inc file since that will make the whole script fail.
Keep the log from the start to the end without overwriting. This makes debugging and problem reporting easy and explains what is done during installation.
Check retrun value of download_with_progress_bar to make it possible catching errors during download.
Added by Ermal LUÇI over 14 years ago
Related to Ticket #950