diff options
author | 2011-10-02 19:51:17 +0000 | |
---|---|---|
committer | 2011-10-02 19:51:17 +0000 | |
commit | 86cc848ce4eb4446b1c5ba8bd43cbbda99d8e067 (patch) | |
tree | a3eabfa59c5010dcbfd6506e751c34d08d083c4e | |
parent | Merge updates from autoconf-wrapper to get POSIX-only code. (diff) | |
download | autotools-wrappers-86cc848ce4eb4446b1c5ba8bd43cbbda99d8e067.tar.gz autotools-wrappers-86cc848ce4eb4446b1c5ba8bd43cbbda99d8e067.tar.bz2 autotools-wrappers-86cc848ce4eb4446b1c5ba8bd43cbbda99d8e067.zip |
Optimize version lookup a bit, and handle the case where $0 is not a full path #385201 by Florian Philipp.am-6
Package-Manager: portage-2.2.0_alpha59/cvs/Linux x86_64
-rwxr-xr-x | am-wrapper.sh | 50 |
1 files changed, 40 insertions, 10 deletions
diff --git a/am-wrapper.sh b/am-wrapper.sh index dbf6df6..f3704d5 100755 --- a/am-wrapper.sh +++ b/am-wrapper.sh @@ -1,7 +1,7 @@ #!/bin/sh -# Copyright 1999-2010 Gentoo Foundation +# Copyright 1999-2011 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 -# $Header: /var/cvsroot/gentoo-x86/sys-devel/automake-wrapper/files/am-wrapper-5.sh,v 1.1 2010/03/07 15:45:40 vapier Exp $ +# $Header: /var/cvsroot/gentoo-x86/sys-devel/automake-wrapper/files/am-wrapper-6.sh,v 1.1 2011/10/02 19:51:17 vapier Exp $ # Based on the am-wrapper.pl script provided by MandrakeSoft # Rewritten in bash by Gregorio Guidi @@ -46,10 +46,38 @@ # -or- # - 'aclocal.m4' contain AM_AUTOMAKE_VERSION, specifying the use of 1.4 -warn() { printf "am-wrapper: $*\n" 1>&2; } +warn() { printf 'am-wrapper: %s: %b\n' "${argv0}" "$*" 1>&2; } err() { warn "$@"; exit 1; } +unset IFS +which() { + local p + IFS=: # we don't use IFS anywhere, so don't bother saving/restoring + for p in ${PATH} ; do + p="${p}/$1" + [ -e "${p}" ] && echo "${p}" && return 0 + done + unset IFS + return 1 +} + +# +# Sanitize argv[0] since it isn't always a full path #385201 +# +argv0=${0##*/} +case ${0} in + ${argv0}) + # find it in PATH + if ! full_argv0=$(which "${argv0}") ; then + err "could not locate ${argv0}; file a bug" + fi + ;; + *) + # re-use full/relative paths + full_argv0=$0 + ;; +esac -if [ "${0##*/}" = "am-wrapper.sh" ] ; then +if [ "${argv0}" = "am-wrapper.sh" ] ; then err "Don't call this script directly" fi @@ -61,14 +89,15 @@ vers="1.11 1.10 1.9 1.8 1.7 1.6 1.5 1.4" # binary="" for v in ${vers} ; do - if [ -z "${binary}" ] && [ -x "${0}-${v}" ] ; then - binary="${0}-${v}" + if [ -z "${binary}" ] && [ -x "${full_argv0}-${v}" ] ; then + binary="${full_argv0}-${v}" + break fi done if [ -z "${binary}" ] ; then err "Unable to locate any usuable version of automake.\n" \ "\tI tried these versions: ${vers}\n" \ - "\tWith a base name of '${0}'." + "\tWith a base name of '${full_argv0}'." fi # @@ -85,7 +114,7 @@ if [ -n "${WANT_AUTOMAKE}" ] ; then for wx in ${WANT_AUTOMAKE} ; do if [ "${wx}" = "${v}" ] ; then - binary="${0}-${v}" + binary="${full_argv0}-${v}" v="x" fi done @@ -119,7 +148,7 @@ if [ -z "${WANT_AUTOMAKE}" ] ; then [ "${confversion_ac}" = "${v}" ] || \ [ "${confversion_am}" = "${v}" ] then - binary="${0}-${v}" + binary="${full_argv0}-${v}" break fi done @@ -136,8 +165,9 @@ fi # for further consistency # for v in ${vers} ; do - if [ "${binary}" = "${0}-${v}" ] ; then + if [ "${binary}" = "${full_argv0}-${v}" ] ; then export WANT_AUTOMAKE="${v}" + break fi done |