f9b2434560
Bash sets the value of PWD to the current working directory. It is not a good idea to change that variable without actually changing the directory. This would happen if the working directory changes between saving and loading the environment (saving - when building a PBIN, and loading - when installing it for example), so better let bash handle this variable. Fixes: ticket:1325
72 lines
2.6 KiB
Bash
Executable File
72 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# vim: set sw=4 sts=4 et :
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# Copyright (c) 2007, 2008 David Leverton
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#
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# Based in part upon ebuild.sh from Portage, which is Copyright 1995-2005
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# Gentoo Foundation and distributed under the terms of the GNU General
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# Public License v2.
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#
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# This file is part of the Paludis package manager. Paludis is free software;
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# you can redistribute it and/or modify it under the terms of the GNU General
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# Public License, version 2, as published by the Free Software Foundation.
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#
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# Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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# Place, Suite 330, Boston, MA 02111-1307 USA
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ebuild_need_extglob()
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{
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eval "_ebuild_need_extglob_$(declare -f ${1})"
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eval "
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${1}()
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{
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eval \"
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shopt -s extglob
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_ebuild_need_extglob_${1} \\\"\\\${@}\\\"
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eval \\\"\$(shopt -p extglob); return \\\${?}\\\"
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\"
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}"
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}
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ebuild_safe_source()
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{
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set -- "${@}" '[^a-zA-Z_]*' '*[^a-zA-Z0-9_]*' \
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EUID PPID UID FUNCNAME GROUPS SHELLOPTS BASHOPTS BASHPID IFS PWD \
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'BASH_@(ARGC|ARGV|LINENO|SOURCE|VERSINFO|REMATCH)' \
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'BASH_COMPLETION?(_DIR)' 'bash+([0-9])?([a-z])' \
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EBUILD_KILL_PID PALUDIS_LOADSAVEENV_DIR PALUDIS_DO_NOTHING_SANDBOXY SANDBOX_ACTIVE \
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PALUDIS_IGNORE_PIVOT_ENV_FUNCTIONS PALUDIS_IGNORE_PIVOT_ENV_VARIABLES \
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PALUDIS_PIPE_COMMAND_READ_FD PALUDIS_PIPE_COMMAND_WRITE_FD
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trap DEBUG
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set -T
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shopt -s extdebug
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trap "[[ \${BASH_COMMAND%%=*} == ?(*[[:space:]])!($(IFS='|'; [[ ${1} == --rewrite-for-declare ]] && shift; shift; echo "${*}")) ||
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\${BASH_COMMAND%%[[:space:]]*} != @(*=*|export|declare) ]]" DEBUG
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if [[ ${1} == --rewrite-for-declare ]]; then
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( source "${2}" && set >"${2}" && print_exports >>"${2}" ) && source "${2}"
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else
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source "${1}"
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fi
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eval "trap DEBUG; shopt -u extdebug; set +T; return ${?}"
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}
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ebuild_need_extglob ebuild_safe_source
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ebuild_verify_not_changed_from_global_scope()
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{
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local v vv_orig
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for v in "$@" ; do
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vv_orig=PALUDIS_SAVE_GLOBAL_SCOPE_$v
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vv_orig=${!vv_orig}
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[[ "${vv_orig}" == "$(declare -p "${v}" 2>/dev/null)" ]] || die "Variable $v must be set to an invariant value in global scope"
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done
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}
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