Bug 20062

I have "coded" a few shell scripts to help me in the titanic task of
managing packages under FreeBSD, and I think there would be place in
the base system for this.

These are basic shell scripts that make a heavy use of grep and ls and
that are much faster than pkg_info(1) and that (you guessed it!)
support regular expressions (yay!).

Description of utilities:

pkg_find [regexp]
[displays names of matching packages]

pkg_findBin [regexp]
[displays names of packages which +CONTENTS file matches regexp]

pkg_desc [regexp]
[gives +DESC files of matching packages, uses pkg_find]

pkg_plist [regexp]
[idem with +CONTENTS file]

One could add one called pkg_comment or something like that to give
the short description of the package and/or merge the last 2 together
since the code is the same. Only the displayed file is different.

Fix: 

Source code (!):

pkg_find (that's a hard one... :)
---- Cut Here ----
#! /bin/sh

ls /var/db/pkg | grep $@
---- Cut Here ----

pkg_findBin:
---- Cut Here ----
#! /bin/sh

pkgDir="/var/db/pkg"

echo "Matching packages:"

for package in `ls $pkgDir`
{
	grep -q $@ $pkgDir/$package/+CONTENTS && \
	echo $package

}
---- Cut Here ----

pkg_desc:
---- Cut Here ----
#! /bin/sh

hits=`pkg_find $@`
if [ ! -z "$hits" ] 
then
    echo "Matches:"
    echo
    echo $hits
    echo 
    echo "To display package(s) description, press ENTER. Ctrl-C to cancel."
    read botch

    for hit in $hits
    do 
	$PAGER /var/db/pkg/$hit/+DESC
	read -p "Press ENTER to continue"
    done
else
    echo No match.
fi
---- Cut Here ----

pkg_plist (could probably be merged with pkg_desc):
---- Cut Here ----
#! /bin/sh

hits=`pkg_find $@`

if [ ! -z "$hits" ] 
then
    echo "Matches:"
    echo
    echo $hits
    echo 
    echo "To display package(s) description, press ENTER. Ctrl-C to cancel."
    read botch

    for hit in $hits
    do 
	$PAGER /var/db/pkg/$hit/+CONTENTS
	read -p "Press ENTER to continue: " botch
    done
else
    echo No match.
fi
---- Cut Here ----

TODO:

- Compatibility with pkg_info commandline and environnement.
- Full pkg_info replacement??
- Merge pkg_desc pkg_plist and potential pkg_comment together
How-To-Repeat: 
$ pkg_find em
movemail-1.0
xemacs-mule-21.1.9
xemacs-mule-common-21.1.9
xemacs-mule-packages-1.1
xemacs-packages-1.1
$ pkg_findBin '\(apache\)\|\(xemacs\)'
File found in:
apache-1.3.12
xemacs-mule-21.1.9
xemacs-mule-common-21.1.9
xemacs-mule-packages-1.1
xemacs-packages-1.1
$ pkg_desc xemacs
...

You get the picture..