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#!/usr/bin/env bash
# librefetch
#
# Copyright 2013 Luke Shumaker <lukeshu@sbcglobal.net>
#
# This file is part of Parabola.
#
# Parabola 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, either version 3 of the License, or
# (at your option) any later version.
#
# Parabola 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.
#
# You should have received a copy of the GNU General Public License
# along with Parabola. If not, see <http://www.gnu.org/licenses/>.
. $(librelib conf)
. $(librelib messages)
setup_traps
declare -r tempdir="$(mktemp -d --tmpdir ${0##*/}.XXXXXXXXXXX)"
trap "rm -rf -- $(printf '%q' "$tempdir")" EXIT
cmd=${0##*/}
usage() {
print "Usage: %s [OPTIONS] SOURCE_URL [OUTPUT_FILE]" "$cmd"
print "Usage: %s -[g|P|h]" "$cmd"
print "Downloads or creates a liberated source tarball."
echo
prose "The default mode is to create OUTPUT_FILE, first by trying
download mode, then create mode."
echo
prose "If OUTPUT_FILE isn't specified, it defaults to the non-directory
part of SOURCE_URL, in the current directory."
echo
prose "Unless '-C' is specified, if SOURCE_URL does not begin with a
configured mirror, create mode is inhibited."
echo
prose "In download mode, it simply tries to download SOURCE_URL. At the
beginning of a URL, 'libre://' expands to the first configured
mirror."
echo
prose "In create mode, it looks at a build script, and uses that to
create the source tarball. SOURCE_URL is ignored, except that it
is used to set the default value of OUTPUT_FILE."
echo
prose "The default build script is 'PKGBUILD', or 'SRCBUILD' if it
exists."
echo
prose "Unrecognized options are passed straight to makepkg."
echo
prose "%s does NOT support getopt-style flag combining. You must use
'-a -b', not '-ab'." "$cmd"
echo
print "Example usage:"
print ' $ %s https://repo.parabolagnulinux.org/other/mypackage/mypackage-1.0.tar.gz' "$cmd"
echo
print "Options:"
print " Settings:"
flag "-C" "Force create mode (don't download)"
flag "-D" "Force download mode (don't create)"
flag "-p <$(_ FILE)>" "Use an alternate build script (instead of
'PKGBUILD') If an SRCBUILD exists in the same
directory, it is used instead"
print " Alternate modes:"
flag "-g, --geninteg" "Generage integrity checks for source files"
flag "-P, --print" "Print the effective build script (SRCBUILD)"
flag "-h, --help" "Show this message"
}
main() {
BUILDFILE="$(readlink -m PKGBUILD)"
makepkg_opts=()
extra_opts=()
mode=download-create
parse_options "$@"
# Mode: help ###########################################################
if [[ $mode =~ help ]]; then
usage
return 0
fi
########################################################################
local BUILDFILEDIR="${BUILDFILE%/*}"
if [[ -f "${BUILDFILEDIR}/SRCBUILD" ]]; then
BUILDFILE="${BUILDFILEDIR}/SRCBUILD"
fi
if [[ ! -f "$BUILDFILE" ]]; then
error "%s does not exist." "$BUILDFILE"
exit 1
fi
case "$BUILDFILE" in
*/SRCBUILD) srcbuild="$(modified_srcbuild "$BUILDFILE")";;
*) srcbuild="$(modified_pkgbuild "$BUILDFILE")";;
esac
makepkg="$(modified_makepkg "$(which makepkg)")"
# Mode: checksums ######################################################
if [[ $mode =~ checksums ]]; then
"$makepkg" "${makepkg_opts[@]}" -g -p "$srcbuild" |
case ${BUILDFILE##*/} in
PKGBUILD) sed -e 's/^[a-z]/mk&/' -e 's/^\s/ &/';;
SRCBUILD) cat;;
esac
return 0
fi
# Mode: print ##########################################################
if [[ $mode =~ print ]]; then
cat "$srcbuild"
return 0
fi
########################################################################
local src="${extra_opts[0]}"
local dst="${extra_opts[1]:-${src##*/}}"
# Don't canonicalize $src unless mode =~ download, and we've validated
# that $MIRRORS is configured.
# Canonicalize $dst
dst="$(readlink -m -- "$dst")"
# Mode: download #######################################################
if [[ $mode =~ download ]]; then
load_files librefetch
check_vars librefetch MIRRORS DOWNLOADER || return 1
# Canonicalize $src
if [[ "$src" == libre://* ]]; then
src="${MIRRORS[0]}/${src#libre://}"
fi
# check to see if $src is a candidate for create mode
local inmirror=false;
local mirror
for mirror in "${MIRRORS[@]}"; do
if [[ "$src" == "$mirror"* ]]; then
inmirror=true
break
fi
done
if ! $inmirror; then
# inhibit create
mode=download
fi
local dlcmd="${DOWNLOADER}"
[[ $dlcmd = *%u* ]] || dlcmd="$dlcmd %u"
dlcmd="${dlcmd//\%o/$(printf '%q' "$dst")}"
dlcmd="${dlcmd//\%u/$(printf '%q' "$src")}"
{ eval "$dlcmd"; } >&2 && return 0
fi
# Mode: create #########################################################
if [[ $mode =~ create ]]; then
PKGEXT=${dst##*/}
export PKGEXT=${PKGEXT%.part}
export PKGDEST=${dst%/*}
export pkg_file=$dst
cd "$BUILDFILEDIR"
"$makepkg" "${makepkg_opts[@]}" -p "$srcbuild" >&2 || return $?
fi
}
# sets the variables BUILDFILE, makepkg_opts, extra_opts, mode
parse_options() {
# Detect makepkg options
local makepkg_orig="$(which makepkg)"
# --long flags that take a second argument
local makepkg_opt2long=( $(LC_ALL=C "${makepkg_orig}" -h | sed -rn 's/\s*(--\S*) <.*/\1/p'))
# -s hort flags that take a second argument
local makepkg_opt2short=($(LC_ALL=C "${makepkg_orig}" -h | sed -rn 's/\s*(-.) <.*/\1/p'))
# all flags
local makepkg_argall=( $(LC_ALL=C "${makepkg_orig}" -h | sed -rn \
-e 's/^ +(-.) .*/\1/p' \
-e 's/^ +(-.), (--\S*) .*/\1\n\2/p' \
-e 's/^ +(--\S*) .*/\1/p'))
local opt
local have_opt
while [[ $# -gt 0 ]]; do
arg=$1
have_opt=false
if in_array "${arg%%=*}" "${makepkg_opt2long[@]}"; then
opt="${arg#*=}"
arg="${arg%%=*}"
have_opt=true
fi
if in_array "${arg}" "${makepkg_opt2short[@]}"; then
shift
opt=$1
have_opt=true
fi
case "$arg" in
-C) mode=create;;
-D) mode=download;;
-g|--geninteg) mode=checksums;;
-P|--print) mode=print;;
-p) BUILDFILE="$(readlink -m -- "$opt")";;
-h|--help) mode=help;;
--) shift; break;;
-*)
if in_array "${arg}" "${makepkg_argall[@]}"; then
makepkg_opts+=("$arg")
$have_opt && makepkg_opts+=("$opt")
else
printf '%s: invalid flag: %s' "$cmd" "$arg"
return 1
fi
;;
*) extra_opts+=("$arg");;
esac
shift
done
extra_opts+=("$@")
# check the number of extra_opts
case "$mode" in
help) # don't worry about it
:;;
checksums|print) # don't take any extra arguments
if [[ ${#extra_opts[@]} != 0 ]]; then
print "%s: found extra non-flag arguments: %s" "$cmd" "${extra_opts[*]}" >&2
usage >&2
return 1
fi
;;
*download*|*create*) # take 1 or 2 extra arguments
if [[ ${#extra_opts[@]} != 1 ]] && [[ ${#extra_opts[@]} != 2 ]]; then
print "%s: %d non-flag arguments found, expected 1 or 2: %s" "$cmd" ${#extra_opts[@]} >&2
usage >&2
return 1
fi
;;
esac
}
# Modify makepkg ###############################################################
# an ERE
makepkg_modify='
/create_package\(\) \{/,/^\}$/ {
/pkg_file=/d # allow us to set pkg_file
s/"?\$\{comp_files\[@\]\}"?// # do not include .{PKGINFO,INSTALL,CHANGELOG}
s/bsdtar /&--format=ustar / # ustar, not pax
s/create_signature .*/&; return $?/ # do not procede to create symlinks
}
/tidy_install\(\) \{/,/^\}$/ {
/for .*PURGE_TARGETS/itidy_install_purge
/for .*PURGE_TARGETS/,/done/d
/^\}$/ifind . -exec touch --date="1990-01-01 0:0:0 +0" {} +
}
/download_sources\(\) \{/ {
arm -rf "$srcdir"\nmkdir "$srcdir"
}
s|srcdir=.*|&-libre|
s|pkgdirbase=.*|&-libre|
s|check_build_status$|:|
'
tidy_install_purge() {
local pt
for pt in "${PURGE_TARGETS[@]}"; do
if [[ ${pt} = "${pt%/}" ]]; then
if [[ ${pt} = "${pt//\/}" ]]; then
find . ! -type d -name "${pt}" -exec rm -f -- '{}' +
else
rm -f "${pt}"
fi
else
if [[ ${pt%/} = "${pt//\/}" ]]; then
find . -type d -name "${pt%/}" -exec rm -rf -- '{}' +
else
rm -rf "${pt}"
fi
fi
done
}
modified_makepkg() {
local makepkg_orig=$1
local makepkg_mine="$tempdir/makepkg"
{
echo '#!/bin/bash'
declare -f tidy_install_purge
sed -r "$makepkg_modify" < "$makepkg_orig"
} > "$makepkg_mine"
chmod 755 "$makepkg_mine"
printf "%s\n" "$makepkg_mine"
}
# Modify PKGBUILD ##############################################################
# a string to be appended
pkgbuild_append='
# do not do split packages
if [[ ${#pkgname[@]} -gt 1 ]]; then
if [[ -n $pkgbase ]]; then
pkgname=("$pkgbase")
else
pkgname=("$pkgname")
fi
fi
# copy source variables
source=("${mksource[@]}")
noextract=("${mknoextract[@]}")
md5sums=("${mkmd5sums[@]}")
sha1sums=("${mksha1sums[@]}")
sha256sums=("${mksha256sums[@]}")
sha384sums=("${mksha384sums[@]}")
sha512sums=("${mksha512sums[@]}")
depends=()
checkdepends=()
makedepends=("${mkdepends[@]}")
####
options=(!strip docs libtool staticlibs emptydirs !zipman purge !upx)
PURGE_TARGETS=(.bzr/ .cvs/ .git/ .hg/ .svn/ .makepkg/)
####
if ! declare -f mksource >/dev/null; then
mksource() { :; }
fi
prepare() { :; }
build() { mksource; }
check() { :; }
package() { cp -a "$srcdir"/*/ "$pkgdir/"; }
'
modified_pkgbuild() {
local pkgbuild=$1
local srcbuild="$tempdir/SRCBUILD"
printf '%s' "$pkgbuild_append" | cat "$pkgbuild" - > "$srcbuild"
printf '%s\n' "$srcbuild"
}
# Modify SRCBUILD ##############################################################
modified_srcbuild() {
local orig=$1
local new="$tempdir/SRCBUILD"
sed -e '/PKGDEST=/d' -e '/PKGEXT=/d' < "$orig" > "$new"
printf '%s\n' "$new"
}
main "$@"
|