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Mac OS X for Unix Geeks
book

Mac OS X for Unix Geeks

by Ernest E. Rothman, Brian Jepson
September 2002
Beginner to intermediate content levelBeginner to intermediate
216 pages
7h 43m
English
O'Reilly Media, Inc.
Content preview from Mac OS X for Unix Geeks

Using GNU tar

For Unix-based software that does not involve resource forks or creator types, gnutar and gzip can be used to create a .tar.gz or .tgz tarball. This type of tarball preserves paths, permissions, and symbolic links. It also supports authentication and compresses well. Tools to uncompress the tarball are available for many platforms.

The automated creation of such a tarball can be worked into the same makefile that is used to build the software. Preservation of resource forks is tricky, but possible, in this method. For example, the following command preserves Macintosh resource forks (where foo/ is a directory):

gnutar -pczf foo.tgz foo/

Every good tarball has a single top-level directory that contains everything else. You should not create tarballs that dump their contents into the current directory. To install software packaged this way, you can use the following command:

gnutar -pxzf foo.tgz

This simply unpacks the tarball into the file and directory structure that existed prior to packaging. Basically, it reverses the packing step. This method can be used to simply write files to the appropriate places on the system, such as /usr/local/bin, /usr/local/lib, /usr/local/man, /usr/local/include, and so on.

Warning

When creating packages, you should keep your package contents out of directories such as /etc, /usr/bin, /usr/lib, /usr/include, or any top-level directory reserved for the operating system, since you have no way of knowing what a future software update or ...

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Publisher Resources

ISBN: 0596003560Errata Page