mirror of
https://github.com/chromebrew/chromebrew.git
synced 2026-01-10 07:57:59 -05:00
101 lines
2.5 KiB
Ruby
101 lines
2.5 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/skycocker/chromebrew/wiki/FAQ'
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version '1.2'
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compatibility 'all'
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source_url 'file:///dev/null'
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source_sha256 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
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depends_on 'llvm'
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def self.build
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system "cat << 'EOF' > ld_default
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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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system "install -Dm755 ld_default #{CREW_DEST_PREFIX}/bin/ld_default"
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end
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def self.postinstall
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puts
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puts "To change the default linker, execute `ld_default`.".lightblue
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puts
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puts "To change the default linker without any user interaction,".lightblue
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puts "execute `ld_default <letter>` where '<letter>' is b, g, or l".lightblue
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puts "for BFD, Gold, or LLD, respectively.".lightblue
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puts
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end
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end
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