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# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
#
# Original Author: Jim Ramsay <lack@gentoo.org>
# Purpose: Utility functions for 0install compatibility
#
# TODO: Install this all the time?
RDEPEND="rox-base/zeroinstall-injector"
# Environment:
NATIVE_FEED_DIR="/usr/share/0install.net/native_feeds"
ZEROINSTALL_STRIP_REQUIRES=""
# Escapes a http-style URI into a 0install-compatible filename
#
# 0install_escape_uri <uri>
# uri - The URI to escape
0install_escape_uri() {
local uri=${1}
uri=${uri//\//#}
echo $uri
}
# Parses an implementation, returning the interface URI
#
# 0install_parse_uri <src>
# src - The XML document to parse
0install_parse_uri() {
local src="${1}"
[ -f "${src}" ] || die "Source file not found"
local feed_for=$(grep '<feed-for.*interface=' "${src}")
[ -n "${feed_for}" ] || die "No 'feed-for' element"
feed_for=${feed_for##*interface=[\"\']}
feed_for=${feed_for%[\'\"]*>}
echo $feed_for
}
# Edits a feed, replacing stability and id
#
# 0install_edit_feed <input> <stability>
# input - The file to edit
# output - The final install location (relative to ${D})
0install_edit_feed() {
local input="${1}"; shift
local output="${1}"; shift
[ -f "${input}" ] || die "No input file"
# Basic editing:
# - Remove stability="*"
# - Remove uri="*"
# - Replace id="*" with id=".", add in stability="packaged"
# - Force main="AppRun"
sed -e 's/stability="[^"]*"//' \
-e "s/stability='[^']*'//" \
-e 's/uri="[^"]*"//' \
-e "s/uri='[^']*'//" \
-e 's/id="[^"]*"/id="." stability="packaged"/' \
-e "s/id='[^']*'/id=\".\" stability=\"packaged\"/" \
-e 's/main="[^"]*"/main="AppRun"/' \
-e "s/main='[^']*'/main=\"AppRun\"/" \
${input} > tmp.native_feed
if [[ -n "${ZEROINSTALL_STRIP_REQUIRES}" ]]; then
# Strip out all 'requires' sections
sed -i -e '/<requires.*\/>/d' \
-e '/<requires.*\>/,/<\/requires>/d' tmp.native_feed
fi
(
insinto $(dirname ${output})
newins tmp.native_feed $(basename ${output})
)
}
# Installs an ebuild-provided feed
#
# 0install_install_feed <src> <destpath>
# src - The XML file we will install and point at
# path - The path where the implementation will be installed
# IE, the final xml will be at <path>/<basename of src>
0install_install_feed() {
local src="${1}"; shift
local path="${1}"; shift
local feedfile=$(basename "${src}")
local dest="${path}/$feedfile"
# Step 1: Find the URI
local uri=$(0install_parse_uri "${src}")
# Step 2: Install the feed in the proper location
(
insinto $(dirname "${dest}")
newins "${src}" $(basename "${dest}")
)
# Step 3: Install the symlink so 0install can find it
local feedname=$(0install_escape_uri ${uri})
dosym "${dest}" "${NATIVE_FEED_DIR}/${feedname}"
}
# Does all the local feed magic you could want:
# - Parses the input file to get the interface URI
# - Edits the input file and installs it to the final location
# - Installs a local feed pointer
#
# Environment variables:
# ZEROINSTALL_STRIP_REQUIRES - If set, strips all 'requires' sections from the XML
# on editing. Default: Not set
#
# 0install_native_feed <src> <destpath>
# src - The XML file we will edit, install, and point at
# path - The path where the implementation will be installed
# IE, the final edited xml will be at <path>/<basename of src>
0install_native_feed() {
local src="${1}"; shift
local path="${1}"; shift
local feedfile=$(basename "${src}")
local dest="${path}/$feedfile"
# Step 1: Find the URI
local uri=$(0install_parse_uri "${src}")
# Step 2: Edit the input and install it in the proper location
0install_edit_feed "${src}" "${dest}"
# Step 3: Install the symlink so 0install can find it
local feedname=$(0install_escape_uri ${uri})
dosym "${dest}" "${NATIVE_FEED_DIR}/${feedname}"
}
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