1#! /bin/bash
2
3#set -x
4
5########################################################################
6#
7# File:    reg-test
8# Author:  Janis Johnson
9# Date:    2005/09/08
10#
11# For each of a list of patches, invoke separate tools to update
12# sources, do a build, and run one or more tests. 
13#
14# Define these in a file whose name is the argument to this script:
15#   REG_IDLIST: List of patch identifiers.
16#   REG_UPDATE: Pathname of script to update the source tree.
17#   REG_BUILD:  Pathname of script to build enough of the product to run
18#               the test.
19#   REG_TEST:   Pathname of script to run one or more tests.
20# Optional:
21#   VERBOSITY:  Default is 0, to print only errors and final message.
22#   DATE_IN_MSG If set to anything but 0, include the time and date in
23#               messages
24#   REG_STOP    Pathname of a file whose existence says to quit; default
25#               is STOP in the current directory.
26#
27#
28# Copyright (c) 2002, 2003, 2005 Free Software Foundation, Inc.
29#
30# This file is free software; you can redistribute it and/or modify
31# it under the terms of the GNU General Public License as published by
32# the Free Software Foundation; either version 3 of the License, or
33# (at your option) any later version.
34#
35# This program is distributed in the hope that it will be useful,
36# but WITHOUT ANY WARRANTY; without even the implied warranty of
37# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
38# GNU General Public License for more details.
39#
40# For a copy of the GNU General Public License, write the the
41# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
42# Boston, MA 02111-1301, USA.
43#
44########################################################################
45
46########################################################################
47# Functions
48########################################################################
49
50# Issue a message if its verbosity level is high enough.
51
52msg() {
53  test ${1} -gt ${VERBOSITY}  && return
54
55  if [ "x${DATE_IN_MSG}" = "x" ]; then
56    echo "${2}"
57  else
58    echo "`${DATE}`  ${2}"
59  fi
60}
61
62# Issue an error message and exit with a nonzero status.
63
64error() {
65  msg 0 "error: ${1}"
66  exit 1
67}
68
69# Build the components to test using sources as of a particular patch
70# and run a test case.  Pass each of the scripts the patch identifier
71# that we're testing; the first one needs it, the others can ignore it
72# if they want.
73
74process_patch () {
75  TEST_ID=${1}
76
77  ${REG_UPDATE} ${TEST_ID}
78  if [ $? -ne 0 ]; then
79    msg 0 "source update failed for id ${TEST_ID}"
80    return
81  fi
82  ${REG_BUILD} ${TEST_ID}
83  if [ $? -ne 0 ]; then
84    msg 0 "build failed for id ${TEST_ID}"
85    return
86  fi
87  ${REG_TEST} "${TEST_ID}"
88}
89 
90########################################################################
91# Main program (so to speak)
92########################################################################
93
94# If DATE isn't defined, use the default date command; the configuration
95# file can override this.
96
97if [ "x${DATE}" = "x" ]; then
98  DATE=date
99fi
100
101# Process the configuration file.
102
103if [ $# -ne 1 ]; then
104  echo Usage: $0 config_file
105  exit 1
106fi
107
108CONFIG=${1}
109if [ ! -f ${CONFIG} ]; then
110  error "configuration file ${CONFIG} does not exist"
111fi
112
113# OK, the config file exists.  Source it, make sure required parameters
114# are defined and their files exist, and give default values to optional
115# parameters.
116
117. ${CONFIG}
118
119test "x${REG_IDLIST}" = "x" && error "REG_IDLIST is not defined"
120test "x${REG_UPDATE}" = "x" && error "REG_UPDATE is not defined"
121test "x${REG_BUILD}" = "x" && error "REG_BUILD is not defined"
122test "x${REG_TEST}" = "x" && error "REG_TEST is not defined"
123test -x ${REG_TEST} || error "REG_TEST is not an executable file"
124test "x${VERBOSITY}" = "x" && VERBOSITY=0
125test "x${REG_STOP}" = "x" && REG_STOP="STOP"
126 
127msg 2 "REG_IDLIST = ${REG_IDLIST}"
128msg 2 "REG_UPDATE = ${REG_UPDATE}"
129msg 2 "REG_BUILD  = ${REG_BUILD}"
130msg 2 "REG_TEST   = ${REG_TEST}"
131msg 2 "VERBOSITY  = ${VERBOSITY}"
132
133# Process each patch identifier in the list.
134
135for TEST_ID in $REG_IDLIST; do
136
137  # If a file called STOP appears, stop; this allows a clean way to
138  # interrupt a search.
139
140  if [ -f ${REG_STOP} ]; then
141    msg 0 "STOP file detected"
142    rm -f ${REG_STOP}
143    exit 1
144  fi
145
146  # Process the new patch.
147
148  msg 2 "process id ${TEST_ID}"
149  process_patch ${TEST_ID}
150done
151
152msg 1 "done"
153