+#!/bin/bash
+# No way I try to deal with a crippled sh just for POSIX foo.
+
+# Copyright (C) 2009-2015 Joerg Jaspert <joerg@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; version 2.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+# Homer: Are you saying you're never going to eat any animal again? What
+# about bacon?
+# Lisa: No.
+# Homer: Ham?
+# Lisa: No.
+# Homer: Pork chops?
+# Lisa: Dad, those all come from the same animal.
+# Homer: Heh heh heh. Ooh, yeah, right, Lisa. A wonderful, magical animal.
+
+# exit on errors
+set -e
+set -o pipefail
+# make sure to only use defined variables
+set -u
+# ERR traps should be inherited from functions too. (And command
+# substitutions and subshells and whatnot, but for us the functions is
+# the important part here)
+set -E
+
+# And use one locale, no matter what the caller has set
+export LANG=C
+export LC_ALL=C
+
+ARG=${1:-"meh"}
+# While this check can be done in the following case, some assumptions
+# down there are easier if we sorted out calls without an arg before.
+if [[ ${ARG} == meh ]]; then
+ cat - <<EOF
+This is the FTPMaster cronscript. It needs an argument or it won't do
+anything for you.
+
+Currently accepted Arguments:
+
+ unchecked - Process the unchecked queue
+ dinstall - Run a dinstall
+ hourly, daily, weekly - Run that part
+
+EOF
+ exit 0
+fi
+
+# Make sure we start out with a sane umask setting
+umask 022
+
+# import the general variable set.
+export SCRIPTVARS=/srv/ftp-master.debian.org/dak/config/debian/vars
+. $SCRIPTVARS
+
+# common functions are "outsourced"
+. "${configdir}/common"
+
+# program name is the (lower cased) first argument.
+PROGRAM="${ARG,,}"
+
+# Timestamp when we started
+NOW=$(date "+%Y.%m.%d-%H:%M:%S")
+
+# Which list of tasks should we run?
+TASKLIST="${configdir}/${PROGRAM}.tasks"
+
+# A logfile for every cron script
+LOGFILE="${logdir}/${PROGRAM}_${NOW}.log"
+
+# Each "cronscript" may have a variables and a functions file
+# that we source
+for what in variables functions; do
+ if [[ -f ${configdir}/${PROGRAM}.${what} ]]; then
+ . ${configdir}/${PROGRAM}.${what}
+ fi
+done
+
+# Get rid of tempfiles at the end
+trap cleanup EXIT TERM HUP INT QUIT
+
+case ${ARG,,} in
+ unchecked)
+ # Do not run during dinstall
+ if [[ -e ${LOCK_DAILY} ]]; then
+ exit 0;
+ fi
+ # only run one cron.unchecked and also lock against hourly (newoverview)
+ if ! lockfile -r8 ${LOCK_UNCHECKED} 2> /dev/null; then
+ # log "aborting cron.unchecked because $LOCK_UNCHECKED has already been locked"
+ exit 0
+ fi
+ TEMPFILES="${TEMPFILES} ${LOCK_UNCHECKED}"
+ ;;
+ dinstall)
+ ;;
+ hourly)
+ # Only one of me should ever run.
+ FLOCKER=${FLOCKER:-""}
+ [ "${FLOCKER}" != "${configdir}/${PROGRAM}.variables" ] && exec env FLOCKER="${configdir}/${PROGRAM}.variables" flock -E 0 -en "${configdir}/${PROGRAM}.variables" "$0"
+ "$@" || :
+ ;;
+ daily)
+ ;;
+ weekly)
+ ;;
+ monthly)
+ ;;
+ *)
+ error "Unknown arg ${ARG}"
+ exit 42
+ ;;
+esac
+
+# An easy access by name for the current log
+ln -sf ${LOGFILE} ${PROGRAM}
+
+# And from here, all output to the log please
+exec >> "$LOGFILE" 2>&1
+
+# The stage function uses this directory
+# This amends the stagedir variable from "vars"
+stagedir="${stagedir}/${PROGRAM}"
+# Ensure the dir exists
+mkdir -p ${stagedir}
+
+# This loop simply wants to be fed by a list of values (see below)
+# made out of 5 columns.
+# The first four are the array values for the stage function, the
+# fifth tells us if we should background the stage call.
+#
+# - FUNC - the function name to call
+# - ARGS - Possible arguments to hand to the function. Can be the empty string
+# - TIME - The timestamp name. Can be the empty string
+# - ERR - if this is the string false, then the call will be surrounded by
+# set +e ... set -e calls, so errors in the function do not exit
+# dinstall. Can be the empty string, meaning true.
+# - BG - Background the function stage?
+#
+# ATTENTION: Spaces in arguments or timestamp names need to be escaped by \
+#
+# NOTE 1: There are two special values for the first column (FUNC).
+# STATE - do not call stage function, call the state
+# function to update the public statefile "where is dinstall"
+# NOSTAGE - do not call stage function, call the command directly.
+#
+# Note 2: If you want to hand an empty value to the stage function,
+# use the word "none" in the list below.
+while read FUNC ARGS TIME ERR BACKGROUND; do
+ debug "FUNC: $FUNC ARGS: $ARGS TIME: $TIME ERR: $ERR BG: $BACKGROUND"
+
+ # Empty values in the value list are the string "none" (or the
+ # while read loop won't work). Here we ensure that variables that
+ # can be empty, are empty if the string none is set for them.
+ for var in ARGS TIME; do
+ if [[ ${!var} == none ]]; then
+ typeset ${var}=''
+ fi
+ done
+
+ # ERR/BACKGROUND are boolean, check that they are.
+ for var in ERR BACKGROUND; do
+ if [[ ${!var} != false ]] && [[ ${!var} != true ]]; then
+ error "Illegal value ${!var} for ${var} (should be true or false), line for function ${FUNC}"
+ fi
+ done
+
+ case ${FUNC} in
+ STATE)
+ state ${ARGS}
+ ;;
+ NOSTAGE)
+ ${ARGS}
+ ;;
+ *)
+ GO=(
+ FUNC=${FUNC}
+ TIME=${TIME}
+ ARGS=${ARGS}
+ ERR=${ERR}
+ )
+ if [[ ${BACKGROUND} == true ]]; then
+ stage $GO &
+ else
+ stage $GO
+ fi
+ ;;
+ esac
+done < <(grep -v '^#' ${TASKLIST} )
+
+# we need to wait for the background processes before the end of the cron script
+wait
+
+
+# Common to all cron scripts
+log "Cron script successful, all done"
+# Redirect output to another file, as we want to compress our logfile
+# and ensure its no longer used
+exec > "$logdir/after${PROGRAM}.log" 2>&1
+
+case ${ARG,,} in
+ unchecked)
+ ;;
+ dinstall)
+ logstats ${LOGFILE}
+ state "all done"
+ touch "${DINSTALLEND}"
+ ;;
+ hourly)
+ ;;
+ daily)
+ ;;
+ weekly)
+ ;;
+ monthly)
+ ;;
+esac
+
+# Now, at the very (successful) end of this run, make sure we remove
+# our stage files, so the next dinstall run will do it all again.
+rm -f ${stagedir}/*
+bzip2 -9 ${LOGFILE}
+# FIXME: Mail the log when its non-empty
+[[ -s "${logdir}/after${PROGRAM}.log" ]] || rm "${logdir}/after${PROGRAM}.log"