60 lines
1.5 KiB
Bash
60 lines
1.5 KiB
Bash
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# Copyright 1999-2020 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: wrapper.eclass
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# @MAINTAINER:
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# base-system@gentoo.org
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# @BLURB: create a shell wrapper script
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if [[ -z ${_WRAPPER_ECLASS} ]]; then
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_WRAPPER_ECLASS=1
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# @FUNCTION: make_wrapper
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# @USAGE: <wrapper> <target> [chdir] [libpaths] [installpath]
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# @DESCRIPTION:
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# Create a shell wrapper script named wrapper in installpath
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# (defaults to the bindir) to execute target (default of wrapper)
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# by first optionally setting LD_LIBRARY_PATH to the colon-delimited
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# libpaths followed by optionally changing directory to chdir.
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make_wrapper() {
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local wrapper=$1 bin=$2 chdir=$3 libdir=$4 path=$5
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local tmpwrapper="${T}/tmp.wrapper.${wrapper##*/}"
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has "${EAPI:-0}" 0 1 2 && local EPREFIX=""
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(
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echo '#!/bin/sh'
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if [[ -n ${libdir} ]] ; then
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local var
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if [[ ${CHOST} == *-darwin* ]] ; then
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var=DYLD_LIBRARY_PATH
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else
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var=LD_LIBRARY_PATH
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fi
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cat <<-EOF
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if [ "\${${var}+set}" = "set" ] ; then
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export ${var}="\${${var}}:${EPREFIX}${libdir}"
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else
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export ${var}="${EPREFIX}${libdir}"
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fi
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EOF
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fi
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[[ -n ${chdir} ]] && printf 'cd "%s" &&\n' "${EPREFIX}${chdir}"
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# We don't want to quote ${bin} so that people can pass complex
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# things as ${bin} ... "./someprog --args"
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printf 'exec %s "$@"\n' "${bin/#\//${EPREFIX}/}"
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) > "${tmpwrapper}"
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chmod go+rx "${tmpwrapper}"
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if [[ -n ${path} ]] ; then
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(
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exeopts -m 0755
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exeinto "${path}"
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newexe "${tmpwrapper}" "${wrapper}"
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) || die
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else
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newbin "${tmpwrapper}" "${wrapper}" || die
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fi
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}
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fi
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