mirror of
https://github.com/chromebrew/chromebrew.git
synced 2026-05-01 03:00:26 -04:00
105 lines
2.6 KiB
Ruby
105 lines
2.6 KiB
Ruby
require 'package'
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class Ld_default < Package
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description "Select the default ld executable and check for libraries in #{CREW_LIB_PREFIX} first"
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homepage 'https://github.com/chromebrew/chromebrew/wiki/FAQ'
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version '1.4'
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license 'GPL-3+'
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compatibility 'all'
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source_url 'SKIP'
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depends_on 'llvm_dev'
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no_compile_needed
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def self.build
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File.write 'ld_default', <<~EOF
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#!/bin/bash
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set -e
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mktmp=$(mktemp -d)
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cd #{CREW_PREFIX}/bin
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type=$(file ld | cut -d' ' -f2 | tr -d '\n')
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if [[ "${type}" == "ELF" ]]; then
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current=$(basename $(find . -inum $(ls -i ld | cut -d' ' -f1) | fgrep 'ld.'))
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elif [[ "${type}" == "symbolic" ]]; then
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current=$(basename $(readlink ld))
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elif [[ "${type}" == "Bourne-Again" ]]; then
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current=$(basename $(tail -1 ld | cut -d' ' -f1))
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else # Fall back to "Unknown" if linker was not identified
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current="Unknown"
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fi
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if [[ -z "${1}" ]]; then
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echo
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echo " Current default linker: ${current}"
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echo
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echo ' Enter the new default linker:'
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echo
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echo ' b = ld.bfd'
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echo ' g = ld.gold'
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echo ' l = ld.lld'
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echo ' 0 = Cancel'
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echo
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else
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echo "${current}" | cut -d'.' -f2 | cut -c1
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fi
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while true; do
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if [[ -z "${1}" ]]; then
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read default
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else
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default="${1}"
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if [[ "${default}" != 'b' ]] && [[ "${default}" != 'g' ]] && [[ "${default}" != 'l' ]]; then
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echo "Invalid linker configuration: ${default}"
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exit 1
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fi
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fi
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case "${default}" in
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b)
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new='ld.bfd'
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break;;
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g)
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new='ld.gold'
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break;;
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l)
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new='ld.lld'
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break;;
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0)
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exit;;
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*)
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echo 'Please select from one of the options or enter 0 to cancel.'
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echo
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esac
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done
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echo '#!/bin/bash' > ${mktmp}/ld
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echo "${new}"' --library-path #{CREW_LIB_PREFIX} -rpath #{CREW_LIB_PREFIX} "$@"' >> ${mktmp}/ld
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install -Dm755 ${mktmp}/ld #{CREW_PREFIX}/bin/ld
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rm -rf ${mktmp}
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EOF
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end
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def self.install
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FileUtils.install 'ld_default', "#{CREW_DEST_PREFIX}/bin/ld_default", mode: 0o755
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end
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def self.postinstall
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ExitMessage.add <<~EOM
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To change the default linker, execute `ld_default`.
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To change the default linker without any user interaction,
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execute `ld_default <letter>` where '<letter>' is b, g, or l
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for BFD, Gold, or LLD, respectively.
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EOM
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end
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end
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