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|
#!/bin/sh
set -e
###############################################################################
# This is the Ubuntu manpage repository generator and interface.
#
# Copyright (C) 2008 Canonical Ltd.
#
# This code was originally written by Dustin Kirkland <kirkland@ubuntu.com>,
# based on a framework by Kees Cook <kees@ubuntu.com>.
#
# It was later modified for Debian, for use in the debian-goodies package,
# by Antoine Beaupré <anarcat@debian.org>, Axel Beckert <abe@deuxchevaux.org>
# and Javier Fernández-Sanguino <jfs@debian.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# On Debian-based systems, the complete text of the GNU General Public
# License can be found in /usr/share/common-licenses/GPL-3
###############################################################################
if [ -r /etc/lsb-release ] ; then
. /etc/lsb-release
else
if [ -x "`which lsb_release`" ] ; then
DISTRIB_CODENAME=$(lsb_release -c -s 2>/dev/null)
fi
fi
# default to stable if LSB fails or is absent
DISTRIB_CODENAME=${DISTRIB_CODENAME:-stable}
usage()
{
echo "Usage: $0 [ --release suite ] man-page <man-arguments>"
}
download_man(){
url=$1
file=$2
curl $CURLOPTS "$url" >"$file" 2>/dev/null
if ! [ -s "$file" ] ||
grep -Eq "<title>403.*Forbidden</title>" "$file" ||
grep -Eq "<h1>Manpage not found</h1>" "$file" ; then
return 1
fi
return 0
}
# Process command line options
while true; do
case "$1" in
--release)
DISTRIB_CODENAME="$2"
shift 2
;;
--help)
usage
exit 0
;;
*)
break
;;
esac
done
PAGE=`echo "$@" | awk '{print $NF}'`
MAN_ARGS=`echo "$@" | sed "s/\$PAGE$//"`
# Sanity checks
if [ ! -x "`which curl`" ] ; then
echo "ERROR: $0 - cannot find curl - exiting"
exit 1
fi
if [ -z "$PAGE" ] ; then
echo "ERROR: No manpage provided - exiting"
usage
exit 1
fi
# PROGRAM OPTIONS
CURLOPTS="-s -L" # -s for silent, -L to follow redirects
# Mirror support of man's languages
if [ ! -z "$LANG" ]; then
LOCALE=$(echo $LANG | sed 's/_.*$//')
LOCDOT=".$LOCALE"
fi
if [ ! -z "$LC_MESSAGES" ]; then
LOCALE="$LC_MESSAGES"
LOCDOT=".$LOCALE"
fi
if echo $LOCALE | grep -E -q "^(C|en)"; then
LOCALE=""
LOCDOT=".en"
fi
BASE_URL="https://dyn.manpages.debian.org"
mandir=`mktemp -d -t dman.XXXXXX`
exit_with_error() {
[ ! -d "$mandir" ] || rm -r "$mandir"
exit 1
}
trap exit_with_error EXIT HUP INT QUIT TERM
man="$mandir/$PAGE"
TESTED_URLS=""
# be careful not to add too many entries in this loop, as each hit can
# take some time for the round-trip
for URL in "$BASE_URL/$DISTRIB_CODENAME/$PAGE$LOCDOT.gz" \
"$BASE_URL/$DISTRIB_CODENAME/$PAGE.en.gz" \
"$BASE_URL/$DISTRIB_CODENAME/$PAGE.gz" \
"$BASE_URL/$PAGE$LOCDOT.gz" \
"$BASE_URL/$PAGE.en.gz" \
"$BASE_URL/$PAGE.gz" \
do
if download_man $URL $man; then
man $MAN_ARGS "$man" || true
exit 0
fi
# Continue in case of failure, take note of tested URL
if [ -z "$TESTED_URLS" ] ; then
TESTED_URLS="$URL"
else
TESTED_URLS="$TESTED_URLS, $URL"
fi
done
echo "$0: not found. Tried: $TESTED_URLS" 1>&1
exit 1
|
