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@satmandu
Last active Mar 9, 2021
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Script to help with creating Chromebrew package files from Arch Linux PKGBUILD files
#!/bin/bash -x
# arch2crew
# Script to help with creating Chromebrew package files from Arch Linux PKGBUILD files
# Assumes rubocop is installed via "gem install rubocop"
# Usage: arch2crew <Arch Linux package name>
# Satadru Pramanik <satadru@gmail.com>
#
archpkgname="${1}"
# Initial setup
dir="$(pwd)"
if
curl -Lf https://github.com/archlinux/svntogit-packages/raw/packages/${archpkgname}/trunk/PKGBUILD > /tmp/"${archpkgname}" ; then
archurl="https://github.com/archlinux/svntogit-packages/raw/packages/${archpkgname}/trunk/PKGBUILD"
elif
curl -Lf https://github.com/archlinux/svntogit-community/raw/packages/${archpkgname}/trunk/PKGBUILD > /tmp/"${archpkgname}" ; then
archurl="https://github.com/archlinux/svntogit-community/raw/packages/${archpkgname}/trunk/PKGBUILD"
elif
curl -Lf https://aur.archlinux.org/cgit/aur.git/plain/PKGBUILD?h="${archpkgname}" > /tmp/"${archpkgname}" ; then
archurl="https://aur.archlinux.org/cgit/aur.git/plain/PKGBUILD?h=${archpkgname}"
else
exit 1
fi
CleanBuildVars () {
local var="${1}"
[[ -n ${pkgver} ]] && var="${var//\$\{pkgver\}/$pkgver}"
[[ -n ${pkgbase} ]] && var="${var//\$\{pkgbase\}/$pkgbase}"
[[ -n ${pkgname} ]] && var=$(echo "${var}" | sed '/cd \$pkgname/d' )
[[ -n ${pkgver} ]] && var=${var//\$pkgver/$pkgver}
[[ -n ${pkgname} ]] && var=${var//\$\{pkgname\}/$archpkgname}
[[ -n ${pkgname} ]] && var=${var//\$pkgname/$archpkgname}
[[ -n ${version} ]] && var=$(echo "${var}" | sed 's/#{version}/'"$version"'/g')
[[ -n ${_hkgname} ]] && var="${var//\$_hkgname/$_hkgname}"
var=${var//\$\{pkgdir\}/#\{CREW_DEST_DIR\}}
var=$(echo "${var}" | sed 's/"\$pkgdir"/#{CREW_DEST_DIR}/g' )
var=$(echo "${var}" | sed 's/\$pkgdir/#{CREW_DEST_DIR}/g' )
var=$(echo "${var}" | sed 's/^ *//g')
[[ "$var" == *"--prefix"* ]] && var=$(echo "${var}" | sed 's/--prefix=\/usr /#{CREW_OPTIONS} /g')
[[ "$var" == *"--mandir"* ]] && var=$(echo "${var}" | sed 's/\/usr/#{CREW_PREFIX}/g')
var=${var//arch-meson/meson}
var=$(echo "${var}" | sed 's/\/usr\/lib/#{CREW_LIB_PREFIX}/g') ;
#var=${var//\/usr\/lib/#{CREW_LIB_PREFIX}}
var=$(echo "${var}" | sed 's/DESTDIR="\${pkgdir}"/DESTDIR=#{CREW_DEST_DIR}/g'| sed 's/"//g')
var=$(echo "${var}" | sed 's/.*:://')
#[[ "$var" == *"#\{CREW"* ]] && var=$(echo $var | sed 's/"//g')
#[[ "$var" == *"#\{CREW"* ]] && var=${var//\"/}
echo "$var"
}
get () {
field=
local field=$(grep -m 1 "${1}=" /tmp/"${archpkgname}" | awk -F "=" '{print $2}'| tr -d \' | tr -d \( | tr -d \) | tr -d \"| sed 's/{,.sig}//')
CleanBuildVars "${field}"
}
get_new () {
field=
if ! grep -q "^[[:space:]]\+${1} =" "$crewpath/${crewname}.rb"; then
local field="$(grep -m 1 "^[[:space:]]\+${1}" "$crewpath/${crewname}.rb" | awk '{print $2}'| tr -d \' | tr -d \( | tr -d \) | tr -d \"| sed 's/{,.sig}//')"
else
local field="$(grep -m 1 "^[[:space:]]\+${1} '\|^[[:space:]]\+${1} \"" "$crewpath/${crewname}.rb")"
field=$(echo ${field#*=} | tr -d \' | tr -d \( | tr -d \) | tr -d \"| sed 's/{,.sig}//')
fi
CleanBuildVars "${field}"
}
CleanNameVars () {
local var="${1}"
var=$(echo "${var}" | sed -r 's/-/_/g' )
echo "$var"
}
ToFile () {
local line="${1}"
if [[ "$line" == *"#\{CREW"* ]]; then
# line=${line//\"/}
echo "${line//\'/\"}" >> "${crewpkgname}.rb"
# echo "${line}" >> "${crewpkgname}.rb"
else
echo "${line}" >> "${crewpkgname}.rb"
fi
}
ToFile2 () {
local line="${1}"
local match="#{CREW"
if [[ "$line" == *"$match"* ]]; then
echo "${line//£/\"}" >> "${crewpkgname}.rb"
else
echo "${line//£/\'}" >> "${crewpkgname}.rb"
fi
}
VartoFile () {
local indent="${1}"
local crewvar="${2}"
local archvar=$(get "${3}")
[[ -n "$archvar" ]] && echo "${indent}${crewvar} '${archvar}'" >> "${crewpkgname}.rb"
}
GetSHA256 () {
local url=${1}
local tmpfile=$(mktemp /tmp/sha_XXX)
if (curl -Lf "$url" > "$tmpfile") &>/dev/null; then
sha256sum "$tmpfile" | awk '{print $1}'
rm -f "$tmpfile"
else
echo "-1"
fi
}
pkgbase=$(get pkgbase)
pkgname=$(get pkgname)
crewpkgname=$(CleanNameVars "$pkgname")
echo "# Adapted from Arch Linux $archpkgname PKGBUILD at:" > "${crewpkgname}.rb"
_hkgname=$(get _hkgname)
ToFile "# $archurl"
ToFile ""
ToFile "require 'package'"
# Insertions
ToFile
class="$(tr '[:lower:]' '[:upper:]' <<< "${crewpkgname:0:1}")${crewpkgname:1}"
ToFile "class ${class} < Package"
VartoFile " " "description" "pkgdesc"
VartoFile " " "homepage" "url"
pkgrel=$(get pkgrel)
pkgver=$(get pkgver)
version="${pkgver}"
[[ "$pkgrel" != "1" ]] && version="${pkgver}-${pkgrel}"
ToFile " version '${version}'"
Archarch=$(get arch)
#echo "arch: $Archarch"
if [[ "$Archarch" == "any" ]]; then ToFile " compatibility 'all'" else VartoFile " " "compatibility" "arch"; fi
source_url=$(get source)
ToFile " source_url '$source_url'"
#VartoFile " " "source_url" "source"
source_sha256=$(get sha256sums)
#VartoFile " " "source_sha256" "sha256sums"
if [[ -z $source_sha256 ]]; then
ToFile " source_sha256 '$(GetSHA256 $source_url)'"
else
ToFile " source_sha256 '$source_sha256'"
fi
#VartoFile " " "source_sha512" "sha512sums"
ToFile ""
depends=$(get depends)
#echo "depends: $depends"
for i in $depends; do
i=$(CleanNameVars "$i")
ToFile " depends_on '$i'"
done
makedepends=$(get makedepends)
#echo "makedepends: $makedepends"
for i in $makedepends; do
i=$(CleanNameVars "$i")
ToFile " depends_on '$i' => ':build'"
done
if grep -q "prepare()" /tmp/"${archpkgname}" ; then
getprepare=1
fi
ToFile ""
ToFile "def self.build"
if [[ $getprepare == 1 ]]; then
#preparesection=$(sed -n '/prepare()/,/'"}"'/{//!p}' /tmp/"${archpkgname}")
preparesection=$(sed -n '/^$/d;/prepare()/,/^}/p; /^}/d' /tmp/"${archpkgname}" | sed '$d' | sed '1d' | sed '1d' )
preparesection=$(CleanBuildVars "$preparesection")
while IFS= read -r line
do
if echo $line | grep '^[[:blank:]]*--*\|^[[:blank:]]*-D*' ; then
echo "\"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
elif echo "$line" | grep -E '\.*do |\.*do$' ; then
let "inwhile=inwhile+1"
echo "in while loop: $inwhile"
echo "system '$line'" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
elif echo "$line" | grep -E '\.*done |\.*done$' ; then
let "inwhile=inwhile-1"
echo "\"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
elif [[ "$inwhile" != "0" ]] ; then
echo "\"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
else
echo "system \"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
fi
done < <(printf '%s\n' "$preparesection")
fi
#buildsection=$(sed -n '/build()/,/'"}"'/{//!p}' /tmp/"${archpkgname}" )
buildsection=$(sed -n '/^$/d;/build()/,/^}/p; /^}/d' /tmp/"${archpkgname}" | sed '$d' | sed '1d' | sed '1d' )
buildsection=$(CleanBuildVars "$buildsection")
inwhile=0
linecontinue=0
while IFS= read -r line
do
if echo $line | grep '^[[:blank:]]*--*\|^[[:blank:]]*-D*' ; then
echo "\"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
elif echo "$line" | grep -E '\.*do |\.*do$' ; then
let "inwhile=inwhile+1"
echo "in while loop: $inwhile"
echo "system '$line'" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
elif echo "$line" | grep -E '\.*done |\.*done$' ; then
let "inwhile=inwhile-1"
echo "\"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
elif [[ "$inwhile" != "0" ]] ; then
echo "\"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
else
echo "system \"$line\"" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
fi
done < <(printf '%s\n' "$buildsection")
ToFile "end"
ToFile "def self.install"
#packagesection=$(sed -n '/package()/,/'"}"'\b/{//!p}' /tmp/"${archpkgname}" | sed '$d' | sed '1d')
packagesection=$(sed -n '/^$/d;/package()/,/^}/p; /^}/d' /tmp/"${archpkgname}" | sed '$d' | sed '1d' | sed '1d' )
packagesection=$(CleanBuildVars "$packagesection")
while IFS= read -r line
do
if [[ "$linecontinue" == "0" ]] ; then
if echo $line | grep -E '\.*\\ |\.*\\$' ; then
linecontinue=1
fi
else
let "linecontinue=linecontinue+1"
echo "linecontinue is $linecontinue"
fi
if echo $line | grep '^[[:blank:]]*--*\|^[[:blank:]]*-D*' ; then
# configure option
#echo "$line" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
ToFile2 "$(echo "£$line£" | sed "s/[[:blank:]]\\\'/',/")"
elif echo "$line" | grep -E '\.*do |\.*do$' ; then
# a while loop start
let "inwhile=inwhile+1"
#echo "system '$line'," | sed "s/[[:blank:]]\\\'/'\,/" >> "${crewpkgname}.rb"
ToFile2 "$(echo "system £$line£," | sed "s/[[:blank:]]\\\'/'\,/")"
elif echo "$line" | grep -E '\.*done |\.*done$' ; then
# a while loop is done
let "inwhile=inwhile-1"
if [[ "$inwhile" != "0" ]] ; then
# not last while loop exit
#echo "'$line'" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
ToFile $(echo "'$line'" | sed "s/[[:blank:]]\\\'/',/")
else
# last while loop exit
#echo "'$line'" >> "${crewpkgname}.rb"
ToFile $(echo "'$line'" >> "${crewpkgname}.rb")
fi
elif [[ "$inwhile" != "0" ]] && [[ "$linecontinue" == "0" ]] ; then
# while loop, not 1st or 2nd continue line
#echo "'$line'," | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
ToFile $(echo "'$line'," | sed "s/[[:blank:]]\\\'/',/")
elif [[ "$inwhile" != "0" ]] && [[ "$linecontinue" == "1" ]] ; then
# while loop, 1st continue line
#echo "'$line'," >> "${crewpkgname}.rb"
ToFile $(echo "\"$line\",")
elif [[ "$inwhile" != "0" ]] && [[ "$linecontinue" == "2" ]] ; then
# while loop, 2nd continue line
echo "\"$line\"," >> "${crewpkgname}.rb"
linecontinue=0
elif [[ "$inwhile" == "0" ]] && [[ "$linecontinue" == "0" ]] ; then
# not while loop, not 1st or 2nd continue line
echo "system \"$line\"" >> "${crewpkgname}.rb"
elif [[ "$inwhile" == "0" ]] && [[ "$linecontinue" == "1" ]] ; then
# not while loop, 1st continue line
echo "system \"$line\"," >> "${crewpkgname}.rb"
elif [[ "$inwhile" == "0" ]] && [[ "$linecontinue" == "2" ]] ; then
# not while loop, 2nd continue line
echo "\"$line\"" >> "${crewpkgname}.rb"
linecontinue=0
else
# not in a while loop or contine line
echo "system \"$line\""
exit 1
#echo "linecontinue is $linecontinue"
#echo "system '$line'" | sed "s/[[:blank:]]\\\'/',/" >> "${crewpkgname}.rb"
fi
done < <(printf '%s\n' "$packagesection")
ToFile "end"
ToFile "end"
#Final Checks
# Add compatibility line:
sed -i "/^[[:blank:]]*compatibility/d" "${crewpkgname}.rb"
sed -i "/^[[:blank:]]*version/ a compatibility 'all'" "${crewpkgname}.rb"
cat <<'EOF'> ~/.rubocop.yml
# The behavior of RuboCop can be controlled via the .rubocop.yml
# configuration file. It makes it possible to enable/disable
# certain cops (checks) and to alter their behavior if they accept
# any parameters. The file can be placed either in your home
# directory or in some project directory.
#
# RuboCop will start looking for the configuration file in the directory
# where the inspected file is and continue its way up to the root directory.
#
# See https://docs.rubocop.org/rubocop/configuration
AllCops:
NewCops: enable
Layout/HashAlignment:
EnforcedHashRocketStyle:
- separator
EnforcedColonStyle:
- separator
Layout/FirstHashElementIndentation:
EnforcedStyle: consistent
Style/FrozenStringLiteralComment:
Enabled: false
Style/Documentation:
Enabled: false
Naming/VariableNumber:
Enabled: false
Naming/ClassAndModuleCamelCase:
Enabled: false
Metrics/MethodLength:
Enabled: false
Layout/LineLength:
IgnoredPatterns: ['description']
EOF
rubocop -A "${crewpkgname}.rb"
# Cleanup
echo -e "\nOriginal Arch Linux version:\n"
cat /tmp/"${archpkgname}"
rm /tmp/"${archpkgname}"
echo -e "\nChromebrew version ready to be edited at ""$dir""/${crewpkgname}.rb:\n"
cat "${crewpkgname}.rb"
ge "${crewpkgname}"
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