proper way to do a recursive install ?
rizzo at icir.org
Thu Feb 1 22:14:32 UTC 2007
On Thu, Feb 01, 2007 at 09:57:12PM +0000, Matthew Seaman wrote:
> Luigi Rizzo wrote:
> > I have a port that just need to install the content of a tarball
> > (a set of headers and C sources) into
> > /usr/local/share/linux-bsd-kmod/linux_compat,
> > and was wondering what is the proper way to handle this (both in
> > the port's Makefile and in the pkg_plist file).
> cpio is handy because it can set the ownership on the installed files
> in the same pass as they are installed. It relies on the correct
> permissions being set in the source directory, which it will apply to
> the copied files and directories (although use of 'find -depth' does
> give best results for directory permissions). There are plenty of
> other choices around the ports tree though.
this and the other email both reinforce my point: the same thing
is done over and over and calls for centralizations, also to
avoid bugs (e.g. i forgot to set the permissions on dirs in
> > #--- this is pkg-plist 000
> > @exec mkdir -p %D/share/linux-bsd-kmod
> > @exec echo "installing into %D/share/linux-bsd-kmod"
> > @unexec echo "uninstalling into %D/share/linux-bsd-kmod"
> > @unexec rm -rf %D/share/linux-bsd-kmod
> If your build process generates a constant set of files, then
> why wouldn't you just generate a pkg-plist exactly as would be done
> for any other port? It might be a bit long, but so what? We have
> computers that can wrangle all that stuff for us.
1. in this specific port i expect rather often, at least at the
beginning, to be adding or moving files from one revision to
the next - either in the distribution, or while i or some third
party decides to update the port in place. With the above, i
can make deinstall/reinstall without any change to the plist
2. as a human being looking at the plist i can be reasonably
confident, reading 4 lines, that the install and uninstall
are confined to a single place. If i have to inspect 500 lines,
even if automatically generated (but not by me!) my level of
confidence goes way down.
3. KISS principle - simple is better.
Unless we decide that wildcards or @exec in pkg-plist are forbidden
(which i would understand from a safety/security point of view, but
is totally impractical) there is no reason not to use more powerful
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