nix-tools/lib/util.sh
2014-11-13 16:31:02 +01:00

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#!/bin/bash
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
##
# usage : in_array( $needle, $haystack )
# return : 0 - found
# 1 - not found
##
in_array() {
local needle=$1; shift
local item
for item in "$@"; do
[[ $item = $needle ]] && return 0 # Found
done
return 1 # Not Found
}
# $1: sofile
# $2: soarch
process_sofile() {
# extract the library name: libfoo.so
local soname="${1%.so?(+(.+([0-9])))}".so
# extract the major version: 1
soversion="${1##*\.so\.}"
if [[ "$soversion" = "$1" ]] && (($IGNORE_INTERNAL)); then
continue
fi
if ! in_array "${soname}=${soversion}-$2" ${soobjects[@]}; then
# libfoo.so=1-64
msg "${soname}=${soversion}-$2"
soobjects=(${soobjects[@]} "${soname}=${soversion}-$2")
fi
}
##
# usage : get_full_version( [$pkgname] )
# return : full version spec, including epoch (if necessary), pkgver, pkgrel
##
get_full_version() {
# set defaults if they weren't specified in buildfile
pkgbase=${pkgbase:-${pkgname[0]}}
epoch=${epoch:-0}
if [[ -z $1 ]]; then
if [[ $epoch ]] && (( ! $epoch )); then
echo $pkgver-$pkgrel
else
echo $epoch:$pkgver-$pkgrel
fi
else
for i in pkgver pkgrel epoch; do
local indirect="${i}_override"
eval $(declare -f package_$1 | sed -n "s/\(^[[:space:]]*$i=\)/${i}_override=/p")
[[ -z ${!indirect} ]] && eval ${indirect}=\"${!i}\"
done
if (( ! $epoch_override )); then
echo $pkgver_override-$pkgrel_override
else
echo $epoch_override:$pkgver_override-$pkgrel_override
fi
fi
}
##
# usage: find_cached_package( $pkgname, $pkgver, $arch )
#
# $pkgver can be supplied with or without a pkgrel appended.
# If not supplied, any pkgrel will be matched.
##
find_cached_package() {
local searchdirs=("$PWD" "$PKGDEST") results=()
local targetname=$1 targetver=$2 targetarch=$3
local dir pkg pkgbasename pkgparts name ver rel arch size r results
for dir in "${searchdirs[@]}"; do
[[ -d $dir ]] || continue
for pkg in "$dir"/*.pkg.tar.xz; do
[[ -f $pkg ]] || continue
# avoid adding duplicates of the same inode
for r in "${results[@]}"; do
[[ $r -ef $pkg ]] && continue 2
done
# split apart package filename into parts
pkgbasename=${pkg##*/}
pkgbasename=${pkgbasename%.pkg.tar?(.?z)}
arch=${pkgbasename##*-}
pkgbasename=${pkgbasename%-"$arch"}
rel=${pkgbasename##*-}
pkgbasename=${pkgbasename%-"$rel"}
ver=${pkgbasename##*-}
name=${pkgbasename%-"$ver"}
if [[ $targetname = "$name" && $targetarch = "$arch" ]] &&
pkgver_equal "$targetver" "$ver-$rel"; then
results+=("$pkg")
fi
done
done
case ${#results[*]} in
0)
return 1
;;
1)
printf '%s\n' "$results"
return 0
;;
*)
error 'Multiple packages found:'
printf '\t%s\n' "${results[@]}" >&2
return 1
;;
esac
}
##
# usage: pkgver_equal( $pkgver1, $pkgver2 )
##
pkgver_equal() {
local left right
if [[ $1 = *-* && $2 = *-* ]]; then
# if both versions have a pkgrel, then they must be an exact match
[[ $1 = "$2" ]]
else
# otherwise, trim any pkgrel and compare the bare version.
[[ ${1%%-*} = "${2%%-*}" ]]
fi
}
check_root() {
(( EUID == 0 )) && return
if type -P sudo >/dev/null; then
exec sudo -- "$@"
else
exec su root -c "$(printf ' %q' "$@")"
fi
}
load_vars() {
local mpkg_conf="$1" var
[[ -f $mpkg_conf ]] || return 1
for var in {SRC,SRCPKG,PKG,LOG}DEST MAKEFLAGS PACKAGER CARCH GPGKEY; do
[[ -z ${!var} ]] && eval $(grep "^${var}=" "$mpkg_conf")
done
return 0
}
load_config(){
manjaro_tools_conf="$1/manjaro-tools.conf"
[[ -r ${manjaro_tools_conf} ]] && source ${manjaro_tools_conf}
if [[ -n ${profiledir} ]];then
profiledir=${profiledir}
else
profiledir="$1/sets"
fi
if [[ -n ${profile} ]];then
profile=${profile}
else
profile='default'
fi
if [[ -n ${branch} ]];then
branch=${branch}
else
branch='stable'
fi
if [[ -n ${chroots} ]];then
chroots=${chroots}
else
chroots='/srv/manjarobuild'
fi
}