kate.ward | 2f3cad9 | 2008-10-21 23:29:23 +0000 | [diff] [blame] | 1 | #! /bin/sh |
| 2 | # $Id$ |
| 3 | # vim:et:ft=sh:sts=2:sw=2 |
| 4 | # |
| 5 | # Copyright 2008 Kate Ward. All Rights Reserved. |
| 6 | # Released under the LGPL (GNU Lesser General Public License) |
| 7 | # |
| 8 | # Author: kate.ward@forestent.com (Kate Ward) |
| 9 | # |
| 10 | # This library provides reusable functions that determine actual names and |
| 11 | # versions of installed shells and the OS. The library can also be run as a |
| 12 | # script if set execuatable. |
| 13 | |
kate.ward | 713fd9e | 2008-10-21 23:44:21 +0000 | [diff] [blame] | 14 | VERSIONS_SHELLS='/bin/bash /bin/dash /bin/ksh /bin/pdksh /bin/sh /bin/zsh' |
kate.ward | 2f3cad9 | 2008-10-21 23:29:23 +0000 | [diff] [blame] | 15 | |
| 16 | #------------------------------------------------------------------------------ |
| 17 | # functions |
| 18 | # |
| 19 | |
| 20 | versions_osName() |
| 21 | { |
| 22 | os_name_='unrecognized' |
| 23 | os_system_=`uname -s` |
| 24 | case ${os_system_} in |
| 25 | Cygwin) os_name_='Cygwin' ;; |
| 26 | Darwin) os_name_='Mac OS X' ;; |
| 27 | Linux) os_name_='Linux' ;; |
| 28 | SunOS) os_name_='Solaris' ;; |
| 29 | esac |
| 30 | echo ${os_name_} |
| 31 | unset os_name_ os_system_ |
| 32 | } |
| 33 | |
| 34 | versions_osVersion() |
| 35 | { |
| 36 | os_version_='unrecognized' |
| 37 | os_system_=`uname -s` |
| 38 | os_release_=`uname -r` |
| 39 | case ${os_system_} in |
| 40 | Cygwin) os_version_='unknown' ;; |
| 41 | Darwin) |
| 42 | major_='10' |
| 43 | sub_=`echo ${os_release_} |\ |
| 44 | sed 's/^[0-9]*\.\([0-9]*\)\.[0-9]*$/\1/'` |
| 45 | case ${os_release_} in |
| 46 | 8.*) minor_='4' ;; |
| 47 | 9.*) minor_='5' ;; |
| 48 | *) minor_='X'; sub_='X' ;; |
| 49 | esac |
| 50 | os_version_="${major_}.${minor_}.${sub_}" |
| 51 | ;; |
| 52 | Linux) |
| 53 | if [ -r '/etc/lsb-release' ]; then |
kate.ward | 44d7cf8 | 2008-11-14 00:56:32 +0000 | [diff] [blame] | 54 | os_version_=`. /etc/lsb-release \ |
kate.ward | 2f3cad9 | 2008-10-21 23:29:23 +0000 | [diff] [blame] | 55 | && echo "${DISTRIB_ID}-${DISTRIB_RELEASE}"` |
| 56 | fi |
| 57 | ;; |
| 58 | SunOS) os_version_=`echo ${os_release_} |sed 's/[0-9]*\.\([0-9]*\)/\1/'` ;; |
| 59 | esac |
| 60 | echo ${os_version_} |
| 61 | unset os_name_ os_release_ os_version_ major_ minor_ sub_ |
| 62 | } |
| 63 | |
| 64 | versions_shellVersion() |
| 65 | { |
| 66 | shell_=$1 |
| 67 | |
| 68 | if [ ! -x "${shell_}" ]; then |
| 69 | echo 'not installed' |
| 70 | return |
| 71 | fi |
| 72 | |
kate.ward | 2764e4c | 2008-11-15 20:15:28 +0000 | [diff] [blame^] | 73 | version_='' |
kate.ward | 2f3cad9 | 2008-10-21 23:29:23 +0000 | [diff] [blame] | 74 | case ${shell_} in |
kate.ward | 713fd9e | 2008-10-21 23:44:21 +0000 | [diff] [blame] | 75 | */sh) |
| 76 | # TODO(kward): fix this |
| 77 | ## this could be one of any number of shells. try until one fits. |
| 78 | #version_=`versions_shell_bash ${shell_}` |
| 79 | ## dash cannot be self determined yet |
| 80 | #[ -z "${version_}" ] && version_=`versions_shell_ksh ${shell_}` |
| 81 | ## pdksh is covered in versions_shell_ksh() |
| 82 | #[ -z "${version_}" ] && version_=`versions_shell_zsh ${shell_}` |
kate.ward | 2f3cad9 | 2008-10-21 23:29:23 +0000 | [diff] [blame] | 83 | ;; |
| 84 | */bash) version_=`versions_shell_bash ${shell_}` ;; |
| 85 | */dash) |
| 86 | # simply assuming Ubuntu Linux until somebody comes up with a better |
| 87 | # test. the following test will return an empty string if dash is not |
| 88 | # installed. |
| 89 | version_=`versions_shell_dash` |
| 90 | ;; |
| 91 | */ksh) version_=`versions_shell_ksh ${shell_}` ;; |
| 92 | */pdksh) version_=`versions_shell_pdksh ${shell_}` ;; |
| 93 | */zsh) version_=`versions_shell_zsh ${shell_}` ;; |
| 94 | *) version_='invalid' |
| 95 | esac |
kate.ward | 713fd9e | 2008-10-21 23:44:21 +0000 | [diff] [blame] | 96 | |
kate.ward | 2764e4c | 2008-11-15 20:15:28 +0000 | [diff] [blame^] | 97 | echo ${version_:-unknown} |
kate.ward | 2f3cad9 | 2008-10-21 23:29:23 +0000 | [diff] [blame] | 98 | unset shell_ version_ |
| 99 | } |
| 100 | |
| 101 | versions_shell_bash() |
| 102 | { |
| 103 | $1 --version 2>&1 |grep 'GNU bash' |sed 's/.*version \([^ ]*\).*/\1/' |
| 104 | } |
| 105 | |
| 106 | versions_shell_dash() |
| 107 | { |
| 108 | dpkg -l |grep ' dash ' |awk '{print $3}' |
| 109 | } |
| 110 | |
| 111 | versions_shell_ksh() |
| 112 | { |
| 113 | versions_shell_=$1 |
| 114 | |
| 115 | versions_version_=`strings ${versions_shell_} 2>&1 \ |
| 116 | |grep Version \ |
| 117 | |sed 's/^.*Version \(.*\)$/\1/;s/ s+ \$$//;s/ /-/g'` |
| 118 | [ -z "${versions_version_}" ] \ |
| 119 | && versions_version_=`versions_shell_pdksh ${versions_shell_}` |
| 120 | echo ${versions_version_} |
| 121 | |
| 122 | unset versions_shell_ versions_version_ |
| 123 | } |
| 124 | |
| 125 | versions_shell_pdksh() |
| 126 | { |
| 127 | strings $1 2>&1 \ |
| 128 | |grep 'PD KSH' \ |
| 129 | |sed -e 's/.*PD KSH \(.*\)/\1/;s/ /-/g' |
| 130 | } |
| 131 | |
| 132 | versions_shell_zsh() |
| 133 | { |
| 134 | echo 'echo ${ZSH_VERSION}' |$1 |
| 135 | } |
| 136 | |
| 137 | #------------------------------------------------------------------------------ |
| 138 | # main |
| 139 | # |
| 140 | |
| 141 | versions_main() |
| 142 | { |
| 143 | # treat unset variables as an error |
| 144 | set -u |
| 145 | |
| 146 | os_name=`versions_osName` |
| 147 | os_version=`versions_osVersion` |
| 148 | echo "os: ${os_name} version: ${os_version}" |
| 149 | |
kate.ward | 2f3cad9 | 2008-10-21 23:29:23 +0000 | [diff] [blame] | 150 | for shell in ${VERSIONS_SHELLS}; do |
| 151 | shell_version=`versions_shellVersion ${shell}` |
| 152 | echo "shell: ${shell} version: ${shell_version}" |
| 153 | done |
| 154 | } |
| 155 | |
| 156 | if [ "`basename $0`" = 'versions' ]; then |
| 157 | versions_main "$@" |
| 158 | fi |