[pacman-dev] makepkg in a constrained environment

[Allan McRae]

Ciprian Dorin, Craciun wrote:
<snip>

>     * if one has declared of using only MD5 sums (most of the packages
> do this), it insists on using `openssl dgst` to create them;

http://projects.archlinux.org/pacman.git/commit/?id=b8a66d68

>     * it insists on using file tool to identify the file type;

http://bugs.archlinux.org/task/6246

>     * it insists on using bsdtar to untar the tar archives;

You need libarchive (bsdtar) for pacman and need pacman to resolve deps...

>     * it breaks if it's not able to chown the source tree; (this
> happens as inside UML I'm root, but outside UML the file system is
> owned by a normal user (the root filesystem of UML is exported by
> using hostfs));

There is this in makepkg:

	if (( EUID == 0 )); then
		# change perms of all source files to root user & root group
		chown -R 0:0 "$srcdir"
	fi

It would seem the assumption that root has root permissions is not 
always true...  We could probably also add a check the user has 
permissions to change the file permissions too.

Allan