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#!/bin/sh
# script based on initial implementation
# by Vitaly Gusach (http://gusach.org.ua)
#
# purpose: warn on those entries in given packagelists(s)
# which are definitely absent; the build might still bail out
# but at least 80% of failures can be predicted early now
#
# usage: check-pkg-list [-n pkgnames] [--aptbox $PATH/to/aptbox] pkglist ...
# (pkgnames file should contain `apt-cache pkgnames`)
# NB: -n pkgnames MUST go first, if given
RET_ERROR=
error() {
echo `basename $0`: $* >&2
exit 1
}
exit_handler() {
local rc=$?
trap - EXIT
rm -f -- "$ftemp" "$fpkgnames" "$fpkgwildcards" "$favaillist" "$fpkgerrors"
exit $rc
}
# figure out apt.conf from recent aptbox or fallback to system one
dump_pkgnames() {
${APTBOX:+$APTBOX/}apt-cache pkgnames | sort -u > "$favaillist"
}
check_pkglist() {
fprofilelist="$1"
[ -f "$fprofilelist" ] || error "invalid packagelist filename: $fprofilelist"
# cleaning pkg list from comments, empty lines,
# splitting several pkgnames on the same line
sed -e '/^#/d' -e '/^[ ]*$/d' -e 's/ \+$//' -e 's/[ ]\+/\n/g' \
< "$fprofilelist" \
| sed 's/-$//' \
| sort -u \
> "$ftemp" # got list of pkgnames we need
# split pkgnames without wildcards and with wildcards
grep -F -v '*' "$ftemp" > "$fpkgnames"
grep -F '*' "$ftemp" > "$fpkgwildcards"
# return unavailable packages
comm -23 "$fpkgnames" "$favaillist" > "$fpkgerrors"
# return unavailable wildcards
while read i; do
# replacing * with regexp's \.+
pattern="^`echo ${i#^} | sed -e 's/\*/.\\\\+/'`$"
grep -q "$pattern" "$favaillist" || echo "$i" >> "$fpkgerrors"
done < "$fpkgwildcards"
if [ -s "$fpkgerrors" ]; then
echo "** error: Packages are not available in $fprofilelist:" >&2
RET_ERROR=1
cat $fpkgerrors >&2
fi
}
[ "$#" -gt 0 ] || error "need at least one argument, a packagelist to check"
# reusable temporary files with self-cleanup at exit
TEMP="${TMP:-/tmp}"
trap exit_handler HUP INT QUIT TERM EXIT
favaillist="`mktemp $TEMP/pkgchecker.avail.XXXXX`"
fpkgnames="`mktemp $TEMP/pkgchecker.names.XXXXX`"
fpkgwildcards="`mktemp $TEMP/pkgchecker.wildcards.XXXXX`"
fpkgerrors="`mktemp $TEMP/pkgchecker.error.XXXXX`"
ftemp="`mktemp $TEMP/pkgchecker.XXXXX`"
# check args
while :; do
case "$1" in
# make sure pkgnames dump is handy
"-n"|"--pkgnames")
[ -f "$2" ] && {
sort "$2" > "$favaillist"
shift; shift
} || error "-n needs valid pkgnames filename"
;;
# PATH to aptbox
"--aptbox")
[ -d "$2" ] && {
APTBOX="$2"
shift; shift
} || error "--aptbox needs valid directory"
;;
*)
break
;;
esac
done
[ -s "$favaillist" ] || dump_pkgnames
for list in "$@"; do
check_pkglist "$list"
done
[ -z "$RET_ERROR" ] || error "Some lists contain unavailable packages"