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parse-pkgbuild
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parse-pkgbuild
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#!/bin/bash
## Script to extract .SRCINFO without having pacman installed
## code are copied from libmakepkg
## usage: ./parse-pkgbuild package-name/PKGBUILD
##############################################################
# commands to ignore in PKGBUILD
msg() {
true
}
msg2() {
true
}
check_option() {
true
}
check_buildoption() {
true
}
pacman() {
true
}
##############################################################
# copied from libmakepkg
source_safe() {
shopt -u extglob
if ! source "$@"; then
printf "Failed to source %s\n" "$1"
exit $E_MISSING_FILE
fi
shopt -s extglob
}
source_buildfile() {
source_safe "$@"
}
srcinfo_open_section() {
printf '%s = %s\n' "$1" "$2"
}
srcinfo_close_section() {
echo
}
srcinfo_write_attr() {
# $1: attr name
# $2: attr values
local attrname=$1 attrvalues=("${@:2}")
# normalize whitespace, strip leading and trailing
attrvalues=("${attrvalues[@]//+([[:space:]])/ }")
attrvalues=("${attrvalues[@]#[[:space:]]}")
attrvalues=("${attrvalues[@]%[[:space:]]}")
printf "\t$attrname = %s\n" "${attrvalues[@]}"
}
pkgbuild_extract_to_srcinfo() {
# $1: pkgname
# $2: attr name
# $3: multivalued
local pkgname=$1 attrname=$2 isarray=$3 outvalue=
if get_pkgbuild_attribute "$pkgname" "$attrname" "$isarray" 'outvalue'; then
srcinfo_write_attr "$attrname" "${outvalue[@]}"
fi
}
srcinfo_write_section_details() {
local attr package_arch a
local multivalued_arch_attrs=(source provides conflicts depends replaces
optdepends makedepends checkdepends
{md5,sha{1,224,256,384,512}}sums)
for attr in "${singlevalued[@]}"; do
pkgbuild_extract_to_srcinfo "$1" "$attr" 0
done
for attr in "${multivalued[@]}"; do
pkgbuild_extract_to_srcinfo "$1" "$attr" 1
done
get_pkgbuild_attribute "$1" 'arch' 1 'package_arch'
for a in "${package_arch[@]}"; do
# 'any' is special. there's no support for, e.g. depends_any.
[[ $a = any ]] && continue
for attr in "${multivalued_arch_attrs[@]}"; do
pkgbuild_extract_to_srcinfo "$1" "${attr}_$a" 1
done
done
}
srcinfo_write_global() {
local singlevalued=(pkgdesc pkgver pkgrel epoch url install changelog)
local multivalued=(arch groups license checkdepends makedepends
depends optdepends provides conflicts replaces
noextract options backup
source validpgpkeys {md5,sha{1,224,256,384,512}}sums)
srcinfo_open_section 'pkgbase' "${pkgbase:-$pkgname}"
srcinfo_write_section_details ''
srcinfo_close_section
}
srcinfo_write_package() {
local singlevalued=(pkgdesc url install changelog)
local multivalued=(arch groups license checkdepends depends optdepends
provides conflicts replaces options backup)
srcinfo_open_section 'pkgname' "$1"
srcinfo_write_section_details "$1"
srcinfo_close_section
}
write_srcinfo_header() {
printf "# Generated by makepkg %s\n" "$makepkg_version"
printf "# %s\n" "$(LC_ALL=C date -u)"
}
write_srcinfo_content() {
local pkg
srcinfo_write_global
for pkg in "${pkgname[@]}"; do
srcinfo_write_package "$pkg"
done
}
write_srcinfo() {
write_srcinfo_header
write_srcinfo_content
}
grep_function() {
{ declare -f "$1" || declare -f package; } 2>/dev/null | grep -E "$2"
}
array_build() {
local dest=$1 src=$2 i keys values
# it's an error to try to copy a value which doesn't exist.
declare -p "$2" &>/dev/null || return 1
# Build an array of the indicies of the source array.
eval "keys=(\"\${!$2[@]}\")"
# Clear the destination array
eval "$dest=()"
# Read values indirectly via their index. This approach gives us support
# for associative arrays, sparse arrays, and empty strings as elements.
for i in "${keys[@]}"; do
values+=("printf -v '$dest[$i]' %s \"\${$src[$i]}\";")
done
eval "${values[*]}"
}
extract_global_variable() {
# $1: variable name
# $2: multivalued
# $3: name of output var
local attr=$1 isarray=$2 outputvar=$3 ref
if (( isarray )); then
array_build ref "$attr"
[[ ${ref[@]} ]] && array_build "$outputvar" "$attr"
else
[[ ${!attr} ]] && printf -v "$outputvar" %s "${!attr}"
fi
}
extract_function_variable() {
# $1: function name
# $2: variable name
# $3: multivalued
# $4: name of output var
local funcname=$1 attr=$2 isarray=$3 outputvar=$4 attr_regex= decl= r=1
if (( isarray )); then
printf -v attr_regex '^[[:space:]]* %s\+?=\(' "$2"
else
printf -v attr_regex '^[[:space:]]* %s\+?=[^(]' "$2"
fi
# this function requires extglob - save current status to restore later
local shellopts=$(shopt -p extglob)
shopt -s extglob
while read -r; do
# strip leading whitespace and any usage of declare
decl=${REPLY##*([[:space:]])}
eval "${decl/#$attr/$outputvar}"
# entering this loop at all means we found a match, so notify the caller.
r=0
done < <(grep_function "$funcname" "$attr_regex")
eval "$shellopts"
return $r
}
get_pkgbuild_attribute() {
# $1: package name
# $2: attribute name
# $3: multivalued
# $4: name of output var
local pkgname=$1 attrname=$2 isarray=$3 outputvar=$4
if (( isarray )); then
eval "$outputvar=()"
else
printf -v "$outputvar" %s ''
fi
if [[ $pkgname ]]; then
extract_global_variable "$attrname" "$isarray" "$outputvar"
extract_function_variable "package_$pkgname" "$attrname" "$isarray" "$outputvar"
else
extract_global_variable "$attrname" "$isarray" "$outputvar"
fi
}
get_pkgbuild_all_split_attributes() {
local attrname=$1 outputvar=$2 all_list list
if extract_global_variable "$attrname" 1 list; then
all_list+=("${list[@]}")
fi
for a in "${arch[@]}"; do
if extract_global_variable "${attrname}_$a" 1 list; then
all_list+=("${list[@]}")
fi
done
for name in "${pkgname[@]}"; do
if extract_function_variable "package_$name" "$attrname" 1 list; then
all_list+=("${list[@]}")
fi
for a in "${arch[@]}"; do
if extract_function_variable "package_$name" "${attrname}_$a" 1 list; then
all_list+=("${list[@]}")
fi
done
done
[[ ${all_list[@]} ]] && array_build "$outputvar" all_list
}
##
# usage : get_full_version()
# return : full version spec, including epoch (if necessary), pkgver, pkgrel
##
get_full_version() {
if (( epoch > 0 )); then
printf "%s\n" "$epoch:$pkgver-$pkgrel"
else
printf "%s\n" "$pkgver-$pkgrel"
fi
}
##
# usage : get_pkg_arch( [$pkgname] )
# return : architecture of the package
##
get_pkg_arch() {
if [[ -z $1 ]]; then
if [[ $arch = "any" ]]; then
printf "%s\n" "any"
else
printf "%s\n" "$CARCH"
fi
else
local arch_override
get_pkgbuild_attribute "$1" arch 1 arch_override
(( ${#arch_override[@]} == 0 )) && arch_override=("${arch[@]}")
if [[ $arch_override = "any" ]]; then
printf "%s\n" "any"
else
printf "%s\n" "$CARCH"
fi
fi
}
print_all_package_names() {
local version=$(get_full_version)
local architecture pkg opts a
for pkg in ${pkgname[@]}; do
architecture=$(get_pkg_arch $pkg)
printf "%s/%s-%s-%s%s\n" "$PKGDEST" "$pkg" "$version" "$architecture" "$PKGEXT"
done
# if check_option "debug" "y" && check_option "strip" "y"; then
# architecture=$(get_pkg_arch)
# printf "%s/%s-%s-%s-%s%s\n" "$PKGDEST" "$pkgbase" "debug" "$version" "$architecture" "$PKGEXT"
# fi
}
get_all_sources() {
local aggregate l a
if array_build l 'source'; then
aggregate+=("${l[@]}")
fi
for a in "${arch[@]}"; do
if array_build l "source_$a"; then
aggregate+=("${l[@]}")
fi
done
array_build "$1" "aggregate"
}
get_all_sources_for_arch() {
local aggregate l
if array_build l 'source'; then
aggregate+=("${l[@]}")
fi
if array_build l "source_$CARCH"; then
aggregate+=("${l[@]}")
fi
array_build "$1" "aggregate"
}
get_integlist() {
local integ
local integlist=()
for integ in "${known_hash_algos[@]}"; do
# check for e.g. "sha256sums"
local sumname="${integ}sums[@]"
if [[ -n ${!sumname} ]]; then
integlist+=("$integ")
continue
fi
# check for e.g. "sha256sums_x86_64"
for a in "${arch[@]}"; do
local sumname="${integ}sums_${a}[@]"
if [[ -n ${!sumname} ]]; then
integlist+=("$integ")
break
fi
done
done
if (( ${#integlist[@]} > 0 )); then
printf "%s\n" "${integlist[@]}"
else
printf "%s\n" "${INTEGRITY_CHECK[@]}"
fi
}
##############################################################
# source PKGBUILD and write srcinfo
CARCH="x86_64"
source_buildfile "$@"
pkgbase=${pkgbase:-${pkgname[0]}}
write_srcinfo_content