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|
#! /bin/bash
########################################################################
#
# File: reg_periodic
# Author: Janis Johnson
# Date: 2002/12/28
#
# Over a range of dates at specified intervals, invoke separate tools to
# update sources, do a build, and run one or more tests.
#
# Define these in a file whose name is the argument to this script:
# LOW_DATE: Date string recognized by the date command.
# HIGH_DATE: Date string recognized by the date command.
# INTERVAL: Time (in seconds) between dates for which to build.
# REG_UPDATE: Pathname of script to update your source tree.
# REG_BUILD: Pathname of script to build enough of the product to run
# the test.
# REG_TEST: Pathname of script to run one or more tests.
# Optional:
# VERBOSITY: Default is 0, to print only errors and final message.
# DATE_IN_MSG If set to anything but 0, include the time and date in
# messages
# REG_STOP Pathname of a file whose existence says to quit; default
# is STOP in the current directory.
#
#
# Copyright (c) 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
#
# This file 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; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
#
########################################################################
########################################################################
# Functions
########################################################################
# Issue a message if its verbosity level is high enough.
msg() {
test ${1} -gt ${VERBOSITY} && return
if [ "x${DATE_IN_MSG}" = "x" ]; then
echo "${2}"
else
echo "`${DATE}` ${2}"
fi
}
# Issue an error message and exit with a nonzero status.
error() {
msg 0 "error: ${1}"
exit 1
}
# Turn seconds since the epoch into a date we can use with source
# control tools and report to the user.
make_date() {
MADE_DATE="`${DATE} -u +\"%Y-%m-%d %H:%M %Z\" --date \"1970-01-01 ${1} seconds\"`" \
|| error "make_date: date command failed"
}
# Build the components to test using sources as of a particular date and
# run a test case. Pass each of the scripts the date that we're
# testing; the first one needs it, the others can ignore it if they want.
process_date() {
TEST_DATE="${1}"
${REG_UPDATE} "${TEST_DATE}"
if [ $? -ne 0 ]; then
msg 0 "source update failed for ${TEST_DATE}"
return
fi
${REG_BUILD} "${TEST_DATE}"
if [ $? -ne 0 ]; then
msg 0 "build failed for ${TEST_DATE}"
return
fi
${REG_TEST} "${TEST_DATE}"
}
########################################################################
# Main program (so to speak)
########################################################################
# If DATE isn't defined, use the default date command; the configuration
# file can override this.
if [ "x${DATE}" = "x" ]; then
DATE=date
fi
# Process the configuration file.
if [ $# -ne 1 ]; then
echo Usage: $0 config_file
exit 1
fi
CONFIG=${1}
if [ ! -f ${CONFIG} ]; then
error "configuration file ${CONFIG} does not exist"
fi
# OK, the config file exists. Source it, make sure required parameters
# are defined and their files exist, and give default values to optional
# parameters.
. ${CONFIG}
test "x${REG_UPDATE}" = "x" && error "REG_UPDATE is not defined"
test "x${REG_BUILD}" = "x" && error "REG_BUILD is not defined"
test "x${REG_TEST}" = "x" && error "REG_TEST is not defined"
test "x${INTERVAL}" = "x" && error "INTERVAL is not defined"
test -x ${REG_TEST} || error "REG_TEST is not an executable file"
test "x${VERBOSITY}" = "x" && VERBOSITY=0
test "x${REG_STOP}" = "x" && REG_STOP="STOP"
msg 2 "LOW_DATE = ${LOW_DATE}"
msg 2 "HIGH_DATE = ${HIGH_DATE}"
msg 2 "INTERVAL = ${INTERVAL}"
msg 2 "REG_UPDATE = ${REG_UPDATE}"
msg 2 "REG_BUILD = ${REG_BUILD}"
msg 2 "REG_TEST = ${REG_TEST}"
msg 2 "VERBOSITY = ${VERBOSITY}"
# Change the dates into seconds since the epoch. This uses an extension
# in GNU date.
LOW_DATE=`${DATE} +%s --date "${LOW_DATE}"` || \
error "date command failed for \"${LOW_DATE}\""
HIGH_DATE=`${DATE} +%s --date "${HIGH_DATE}"` || \
error "date command failed for \"${LOW_DATE}\""
# Process each date in the range.
while [ ${LOW_DATE} -le ${HIGH_DATE} ]; do
# If a file called STOP appears, stop; this allows a clean way to
# interrupt a search.
if [ -f ${REG_STOP} ]; then
msg 0 "STOP file detected"
rm -f ${REG_STOP}
exit 1
fi
# Get a version of the date that is usable by tools and readable
# by people, then process it.
make_date ${LOW_DATE}
process_date "${MADE_DATE}"
let LOW_DATE=LOW_DATE+INTERVAL
done
msg 1 "done"
|
