1#! /bin/sh
2
3# Simple program to make new version numbers for the shell.
4# Big deal, but it was getting out of hand to do everything
5# in the makefile.  This creates a file named by the -o option,
6# otherwise everything is echoed to the standard output.
7
8# Copyright (C) 1996-2002 Free Software Foundation, Inc.
9#
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation; either version 2, or (at your option)
13# any later version.
14#
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18# GNU General Public License for more details.
19#
20# You should have received a copy of the GNU General Public License
21# along with this program; if not, write to the Free Software
22# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
23
24PROGNAME=`basename $0`
25USAGE="$PROGNAME [-b] [-S srcdir] -d version -p patchlevel [-s status] [-o outfile]"
26
27source_dir="."
28
29while [ $# -gt 0 ]; do
30	case "$1" in
31	-o)	shift; OUTFILE=$1; shift ;;
32	-b)	shift; inc_build=yes ;;
33	-s)	shift; rel_status=$1; shift ;;
34	-p)	shift; patch_level=$1; shift ;;
35	-d)	shift; dist_version=$1; shift ;;
36	-S)	shift; source_dir="$1"; shift ;;
37	*)	echo "$PROGNAME: usage: $USAGE" >&2 ; exit 2 ;;
38	esac
39done
40
41# Required arguments
42if [ -z "$dist_version" ]; then
43	echo "${PROGNAME}: required argument -d missing" >&2
44	echo "$PROGNAME: usage: $USAGE" >&2
45	exit 1
46fi
47
48#if [ -z "$patch_level" ]; then
49#	echo "${PROGNAME}: required argument -p missing" >&2
50#	echo "$PROGNAME: usage: $USAGE" >&2
51#	exit 1
52#fi
53
54# Defaults
55if [ -z "$rel_status" ]; then
56	rel_status="release"
57fi
58
59build_ver=
60if [ -r .build ]; then
61	build_ver=`cat .build`
62fi
63if [ -z "$build_ver" ]; then
64	build_ver=0
65fi
66
67# increment the build version if that's what's required
68
69if [ -n "$inc_build" ]; then
70	build_ver=`expr 1 + $build_ver`
71fi
72
73# what's the patch level?
74if [ -z "$patch_level" ]; then
75	patchlevel_h=$source_dir/patchlevel.h
76	if [ -s $patchlevel_h ]; then
77		patch_level=`cat $patchlevel_h | grep '^#define[ 	]*PATCHLEVEL' | awk '{print $NF}'`
78	fi
79fi
80if [ -z "$patch_level" ]; then
81	patch_level=0
82fi
83
84# If we have an output file specified, make it the standard output
85if [ -n "$OUTFILE" ]; then
86	if exec >$OUTFILE; then
87		:
88	else
89		echo "${PROGNAME}: cannot redirect standard output to $OUTFILE" >&2
90		exit 1
91	fi
92fi
93
94# Output the leading comment.
95echo "/* Version control for the shell.  This file gets changed when you say"
96echo "   \`make version.h' to the Makefile.  It is created by mkversion. */"
97
98# Output the distribution version.  Single numbers are converted to x.00.
99# Allow, as a special case, `[:digit:].[:digit:][:alpha:]' for
100# intermediate versions (e.g., `2.5a').
101# Any characters other than digits and `.' are invalid.
102case "$dist_version" in
103[0-9].[0-9][a-z])	;;	# special case
104*[!0-9.]*)	echo "mkversion.sh: ${dist_version}: bad distribution version" >&2
105		exit 1 ;;
106*.*)	;;
107*)	dist_version=${dist_version}.00 ;;
108esac
109
110dist_major=`echo $dist_version | sed 's:\..*$::'`
111[ -z "${dist_major}" ] && dist_major=0
112
113dist_minor=`echo $dist_version | sed 's:^.*\.::'`
114case "$dist_minor" in
115"")	dist_minor=0 ;;
116[a-z])	dist_minor=0${dist_minor} ;;
117?)	dist_minor=${dist_minor} ;;
118*)	;;
119esac
120
121#float_dist=`echo $dist_version | awk '{printf "%.2f\n", $1}'`
122float_dist=${dist_major}.${dist_minor}
123
124echo
125echo "/* The distribution version number of this shell. */"
126echo "#define DISTVERSION \"${float_dist}\""
127
128# Output the patch level
129#echo
130#echo "/* The patch level of this version of the shell. */"
131#echo "#define PATCHLEVEL ${patch_level}"
132
133# Output the build version
134echo
135echo "/* The last built version of this shell. */"
136echo "#define BUILDVERSION ${build_ver}"
137
138# Output the release status
139echo
140echo "/* The release status of this shell. */"
141echo "#define RELSTATUS \"${rel_status}\""
142
143# Output the SCCS version string
144sccs_string="${float_dist}.${patch_level}(${build_ver}) ${rel_status} GNU"
145echo
146echo "/* A version string for use by sccs and the what command. */"
147echo "#define SCCSVERSION \"@(#)Bash version ${sccs_string}\""
148
149# extern function declarations
150#echo
151#echo '/* Functions from version.c. */'
152#echo 'extern char *shell_version_string __P((void));'
153#echo 'extern void show_shell_version __P((int));'
154
155if [ -n "$inc_build" ]; then
156	# Make sure we can write to .build
157	if [ -f .build ] && [ ! -w .build ]; then
158		echo "$PROGNAME: cannot write to .build, not incrementing build version" >&2
159	else
160		echo "$build_ver" > .build
161	fi
162fi
163	
164exit 0
165