diff options
Diffstat (limited to 'lib/versions')
| -rwxr-xr-x | lib/versions | 264 |
1 files changed, 159 insertions, 105 deletions
diff --git a/lib/versions b/lib/versions index 54c8b1f..b5533ab 100755 --- a/lib/versions +++ b/lib/versions @@ -1,22 +1,27 @@ #! /bin/sh -# $Id$ # vim:et:ft=sh:sts=2:sw=2 # -# Copyright 2008-2016 Kate Ward. All Rights Reserved. -# Released under the Apache License. +# Versions determines the versions of all installed shells. +# +# Copyright 2008-2020 Kate Ward. All Rights Reserved. +# Released under the Apache 2.0 License. # # Author: kate.ward@forestent.com (Kate Ward) +# https://github.com/kward/shlib # # This library provides reusable functions that determine actual names and # versions of installed shells and the OS. The library can also be run as a -# script if set execuatable. +# script if set executable. +# +# Disable checks that aren't fully portable (POSIX != portable). +# shellcheck disable=SC2006 ARGV0=`basename "$0"` LSB_RELEASE='/etc/lsb-release' -VERSIONS_SHELLS="/bin/bash /bin/dash /bin/ksh /bin/pdksh /bin/sh /bin/zsh" +VERSIONS_SHELLS='ash /bin/bash /bin/dash /bin/ksh /bin/mksh /bin/pdksh /bin/zsh /usr/xpg4/bin/sh /bin/sh /sbin/sh' -TRUE=0 -FALSE=1 +true; TRUE=$? +false; FALSE=$? ERROR=2 UNAME_R=`uname -r` @@ -24,34 +29,50 @@ UNAME_S=`uname -s` __versions_haveStrings=${ERROR} -#------------------------------------------------------------------------------ -# functions -# - -versions_osName() -{ +versions_osName() { os_name_='unrecognized' os_system_=${UNAME_S} + os_release_=${UNAME_R} case ${os_system_} in CYGWIN_NT-*) os_name_='Cygwin' ;; - Darwin) os_name_='Mac OS X' ;; + Darwin) + os_name_=`/usr/bin/sw_vers -productName` + os_version_=`versions_osVersion` + case ${os_version_} in + 10.4|10.4.[0-9]*) os_name_='Mac OS X Tiger' ;; + 10.5|10.5.[0-9]*) os_name_='Mac OS X Leopard' ;; + 10.6|10.6.[0-9]*) os_name_='Mac OS X Snow Leopard' ;; + 10.7|10.7.[0-9]*) os_name_='Mac OS X Lion' ;; + 10.8|10.8.[0-9]*) os_name_='Mac OS X Mountain Lion' ;; + 10.9|10.9.[0-9]*) os_name_='Mac OS X Mavericks' ;; + 10.10|10.10.[0-9]*) os_name_='Mac OS X Yosemite' ;; + 10.11|10.11.[0-9]*) os_name_='Mac OS X El Capitan' ;; + 10.12|10.12.[0-9]*) os_name_='macOS Sierra' ;; + 10.13|10.13.[0-9]*) os_name_='macOS High Sierra' ;; + 10.14|10.14.[0-9]*) os_name_='macOS Mojave' ;; + 10.15|10.15.[0-9]*) os_name_='macOS Catalina' ;; + *) os_name_='macOS' ;; + esac + ;; FreeBSD) os_name_='FreeBSD' ;; Linux) os_name_='Linux' ;; SunOS) - if grep 'OpenSolaris' /etc/release >/dev/null; then - os_name_='OpenSolaris' - else - os_name_='Solaris' + os_name_='SunOS' + if [ -r '/etc/release' ]; then + if grep 'OpenSolaris' /etc/release >/dev/null; then + os_name_='OpenSolaris' + else + os_name_='Solaris' + fi fi ;; esac echo ${os_name_} - unset os_name_ os_system_ + unset os_name_ os_system_ os_release_ os_version_ } -versions_osVersion() -{ +versions_osVersion() { os_version_='unrecognized' os_system_=${UNAME_S} os_release_=${UNAME_R} @@ -60,170 +81,203 @@ versions_osVersion() os_version_=`expr "${os_release_}" : '\([0-9]*\.[0-9]\.[0-9]*\).*'` ;; Darwin) - major_='10' - sub_=`echo ${os_release_} |sed 's/^[0-9]*\.\([0-9]*\)\.[0-9]*$/\1/'` - case ${os_release_} in - 8.*) minor_='4' ;; - 9.*) minor_='5' ;; - 10.*) minor_='6' ;; - 11.*) minor_='7' ;; - 12.*) minor_='8' ;; - 13.*) minor_='9' ;; - 15.*) minor_='10' ;; - *) minor_='X'; sub_='X' ;; - esac - os_version_="${major_}.${minor_}.${sub_}" + os_version_=`/usr/bin/sw_vers -productVersion` ;; FreeBSD) os_version_=`expr "${os_release_}" : '\([0-9]*\.[0-9]*\)-.*'` ;; Linux) - if [ -r "${LSB_RELEASE}" ]; then + if [ -r '/etc/os-release' ]; then + os_version_=`awk -F= '$1~/PRETTY_NAME/{print $2}' /etc/os-release \ + |sed 's/"//g'` + elif [ -r '/etc/redhat-release' ]; then + os_version_=`cat /etc/redhat-release` + elif [ -r '/etc/SuSE-release' ]; then + os_version_=`head -n 1 /etc/SuSE-release` + elif [ -r "${LSB_RELEASE}" ]; then if grep -q 'DISTRIB_ID=Ubuntu' "${LSB_RELEASE}"; then + # shellcheck disable=SC2002 os_version_=`cat "${LSB_RELEASE}" \ |awk -F= '$1~/DISTRIB_DESCRIPTION/{print $2}' \ |sed 's/"//g;s/ /-/g'` fi - elif [ -r '/etc/redhat-release' ]; then - os_version_=`cat /etc/redhat-release` fi ;; SunOS) - if grep 'OpenSolaris' /etc/release >/dev/null; then - os_version_=`grep 'OpenSolaris' /etc/release |awk '{print $2"("$3")"}'` - else - major_=`echo ${os_release_} |sed 's/[0-9]*\.\([0-9]*\)/\1/'` - minor_=`grep Solaris /etc/release |sed 's/[^u]*\(u[0-9]*\).*/\1/'` - os_version_="${major_}${minor_}" + if [ -r '/etc/release' ]; then + if grep 'OpenSolaris' /etc/release >/dev/null; then # OpenSolaris + os_version_=`grep 'OpenSolaris' /etc/release |awk '{print $2"("$3")"}'` + else # Solaris + major_=`echo "${os_release_}" |sed 's/[0-9]*\.\([0-9]*\)/\1/'` + minor_=`grep Solaris /etc/release |sed 's/[^u]*\(u[0-9]*\).*/\1/'` + os_version_="${major_}${minor_}" + fi fi ;; esac - echo ${os_version_} - unset os_name_ os_release_ os_version_ major_ minor_ sub_ + echo "${os_version_}" + unset os_release_ os_system_ os_version_ major_ minor_ } -versions_shellVersion() -{ +versions_shellVersion() { shell_=$1 - if [ ! -x "${shell_}" ]; then + shell_present_=${FALSE} + case "${shell_}" in + ash) [ -x '/bin/busybox' ] && shell_present_=${TRUE} ;; + *) [ -x "${shell_}" ] && shell_present_=${TRUE} ;; + esac + if [ ${shell_present_} -eq ${FALSE} ]; then echo 'not installed' - return + return ${FALSE} fi version_='' case ${shell_} in + # SunOS shells. + /sbin/sh) ;; + /usr/xpg4/bin/sh) version_=`versions_shell_xpg4 "${shell_}"` ;; + + # Generic shell. */sh) - # TODO(kward): fix this - ## this could be one of any number of shells. try until one fits. - #version_=`versions_shell_bash ${shell_}` - ## dash cannot be self determined yet - #[ -z "${version_}" ] && version_=`versions_shell_ksh ${shell_}` - ## pdksh is covered in versions_shell_ksh() - #[ -z "${version_}" ] && version_=`versions_shell_zsh ${shell_}` - ;; - */bash) version_=`versions_shell_bash ${shell_}` ;; - */dash) - # simply assuming Ubuntu Linux until somebody comes up with a better - # test. the following test will return an empty string if dash is not - # installed. - version_=`versions_shell_dash` + # This could be one of any number of shells. Try until one fits. + version_='' + [ -z "${version_}" ] && version_=`versions_shell_bash "${shell_}"` + # dash cannot be self determined yet + [ -z "${version_}" ] && version_=`versions_shell_ksh "${shell_}"` + # pdksh is covered in versions_shell_ksh() + [ -z "${version_}" ] && version_=`versions_shell_xpg4 "${shell_}"` + [ -z "${version_}" ] && version_=`versions_shell_zsh "${shell_}"` ;; - */ksh) version_=`versions_shell_ksh ${shell_}` ;; - */pdksh) version_=`versions_shell_pdksh ${shell_}` ;; - */zsh) version_=`versions_shell_zsh ${shell_}` ;; + + # Specific shells. + ash) version_=`versions_shell_ash "${shell_}"` ;; + # bash - Bourne Again SHell (https://www.gnu.org/software/bash/) + */bash) version_=`versions_shell_bash "${shell_}"` ;; + */dash) version_=`versions_shell_dash` ;; + # ksh - KornShell (http://www.kornshell.com/) + */ksh) version_=`versions_shell_ksh "${shell_}"` ;; + # mksh - MirBSD Korn Shell (http://www.mirbsd.org/mksh.htm) + */mksh) version_=`versions_shell_ksh "${shell_}"` ;; + # pdksh - Public Domain Korn Shell (http://web.cs.mun.ca/~michael/pdksh/) + */pdksh) version_=`versions_shell_pdksh "${shell_}"` ;; + # zsh (https://www.zsh.org/) + */zsh) version_=`versions_shell_zsh "${shell_}"` ;; + + # Unrecognized shell. *) version_='invalid' esac - echo ${version_:-unknown} + echo "${version_:-unknown}" unset shell_ version_ } -versions_shell_bash() -{ - $1 --version 2>&1 |grep 'GNU bash' |sed 's/.*version \([^ ]*\).*/\1/' +# The ash shell is included in BusyBox. +versions_shell_ash() { + busybox --help |head -1 |sed 's/BusyBox v\([0-9.]*\) .*/\1/' +} + +versions_shell_bash() { + $1 --version : 2>&1 |grep 'GNU bash' |sed 's/.*version \([^ ]*\).*/\1/' } -versions_shell_dash() -{ +# Assuming Ubuntu Linux until somebody comes up with a better test. The +# following test will return an empty string if dash is not installed. +versions_shell_dash() { eval dpkg >/dev/null 2>&1 - [ $? -eq 127 ] && return # return if dpkg not found + [ $? -eq 127 ] && return # Return if dpkg not found. dpkg -l |grep ' dash ' |awk '{print $3}' } -versions_shell_ksh() -{ +versions_shell_ksh() { versions_shell_=$1 + versions_version_='' - # try a few different ways to figure out the version + # Try a few different ways to figure out the version. versions_version_=`${versions_shell_} --version : 2>&1` + # shellcheck disable=SC2181 if [ $? -eq 0 ]; then versions_version_=`echo "${versions_version_}" \ |sed 's/.*\([0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]\).*/\1/'` else versions_version_='' fi - + if [ -z "${versions_version_}" ]; then + # shellcheck disable=SC2016 + versions_version_=`${versions_shell_} -c 'echo ${KSH_VERSION}'` + fi if [ -z "${versions_version_}" ]; then _versions_have_strings - versions_version_=`strings ${versions_shell_} 2>&1 \ + versions_version_=`strings "${versions_shell_}" 2>&1 \ |grep Version \ |sed 's/^.*Version \(.*\)$/\1/;s/ s+ \$$//;s/ /-/g'` fi - if [ -z "${versions_version_}" ]; then - versions_version_=`versions_shell_pdksh ${versions_shell_}` + versions_version_=`versions_shell_pdksh "${versions_shell_}"` fi - echo ${versions_version_} + echo "${versions_version_}" unset versions_shell_ versions_version_ } -versions_shell_pdksh() -{ +# mksh - MirBSD Korn Shell (http://www.mirbsd.org/mksh.htm) +# mksh is a successor to pdksh (Public Domain Korn Shell). +versions_shell_mksh() { + versions_shell_ksh +} + +# pdksh - Public Domain Korn Shell +# pdksh is an obsolete shell, which was replaced by mksh (among others). +versions_shell_pdksh() { _versions_have_strings - strings $1 2>&1 \ + strings "$1" 2>&1 \ |grep 'PD KSH' \ |sed -e 's/.*PD KSH \(.*\)/\1/;s/ /-/g' } -versions_shell_zsh() -{ +versions_shell_xpg4() { + _versions_have_strings + strings "$1" 2>&1 \ + |grep 'Version' \ + |sed -e 's/^@(#)Version //' +} + +versions_shell_zsh() { versions_shell_=$1 - # try a few different ways to figure out the version + # Try a few different ways to figure out the version. + # shellcheck disable=SC2016 versions_version_=`echo 'echo ${ZSH_VERSION}' |${versions_shell_}` - if [ -z "${versions_version_}" ]; then - versions_version_=`${versions_shell_} --version 2>&1 |awk '{print $2}'` + versions_version_=`${versions_shell_} --version : 2>&1` + # shellcheck disable=SC2181 + if [ $? -eq 0 ]; then + versions_version_=`echo "${versions_version_}" |awk '{print $2}'` + else + versions_version_='' + fi fi - echo ${versions_version_} + echo "${versions_version_}" unset versions_shell_ versions_version_ } # Determine if the 'strings' binary installed. -_versions_have_strings() -{ +_versions_have_strings() { [ ${__versions_haveStrings} -ne ${ERROR} ] && return - eval strings /dev/null >/dev/null 2>&1 - if [ $? -eq 0 ]; then + if eval strings /dev/null >/dev/null 2>&1; then __versions_haveStrings=${TRUE} - else - echo 'WARN: strings not installed. try installing binutils?' >&2 - __versions_haveStrings=${FALSE} + return fi -} -#------------------------------------------------------------------------------ -# main -# + echo 'WARN: strings not installed. try installing binutils?' >&2 + __versions_haveStrings=${FALSE} +} -versions_main() -{ - # treat unset variables as an error +versions_main() { + # Treat unset variables as an error. set -u os_name=`versions_osName` @@ -231,7 +285,7 @@ versions_main() echo "os: ${os_name} version: ${os_version}" for shell in ${VERSIONS_SHELLS}; do - shell_version=`versions_shellVersion ${shell}` + shell_version=`versions_shellVersion "${shell}"` echo "shell: ${shell} version: ${shell_version}" done } |