98 lines
2.1 KiB
Bash
98 lines
2.1 KiB
Bash
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#!/bin/sh
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# packagelists.sh - expands package list includes
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# Copyright (C) 2006-2009 Daniel Baumann <daniel@debian.org>
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#
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# live-helper comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
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# This is free software, and you are welcome to redistribute it
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# under certain conditions; see COPYING for details.
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Expand_packagelist ()
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{
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_LH_EXPAND_QUEUE="$(basename "${1}")"
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shift
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while [ -n "${_LH_EXPAND_QUEUE}" ]
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do
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_LH_LIST_NAME="$(echo ${_LH_EXPAND_QUEUE} | cut -d" " -f1)"
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_LH_EXPAND_QUEUE="$(echo ${_LH_EXPAND_QUEUE} | cut -s -d" " -f2-)"
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_LH_LIST_LOCATION=""
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_LH_NESTED=0
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_LH_ENABLED=1
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for _LH_SEARCH_PATH in ${@} "${LH_BASE:-/usr/share/live-helper}/lists"
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do
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if [ -e "${_LH_SEARCH_PATH}/${_LH_LIST_NAME}" ]
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then
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_LH_LIST_LOCATION="${_LH_SEARCH_PATH}/${_LH_LIST_NAME}"
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break
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fi
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done
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if [ -z "${_LH_LIST_LOCATION}" ]
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then
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echo "W: Unknown package list '${_LH_LIST_NAME}'" >&2
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continue
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fi
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while read _LH_LINE
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do
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case "${_LH_LINE}" in
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\#if\ *)
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if [ ${_LH_NESTED} -eq 1 ]
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then
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echo "E: Nesting conditionals is not supported" >&2
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exit 1
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fi
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_LH_NESTED=1
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_LH_NEEDLE="$(echo "${_LH_LINE}" | cut -d' ' -f3-)"
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_LH_HAYSTACK="$(eval "echo \$LH_$(echo "${_LH_LINE}" | cut -d' ' -f2)")"
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_LH_ENABLED=0
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for _LH_NEEDLE_PART in ${_LH_NEEDLE}
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do
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for _LH_HAYSTACK_PART in ${_LH_HAYSTACK}
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do
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if [ "${_LH_NEEDLE_PART}" = "${_LH_HAYSTACK_PART}" ]
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then
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_LH_ENABLED=1
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fi
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done
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done
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;;
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\#endif*)
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_LH_NESTED=0
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_LH_ENABLED=1
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;;
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\#*)
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if [ ${_LH_ENABLED} -ne 1 ]
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then
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continue
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fi
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# Find includes
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_LH_INCLUDES="$(echo "${_LH_LINE}" | sed -n \
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-e 's|^#<include> \([^ ]*\)|\1|gp' \
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-e 's|^#include <\([^ ]*\)>|\1|gp')"
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# Add to queue
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_LH_EXPAND_QUEUE="$(echo ${_LH_EXPAND_QUEUE} ${_LH_INCLUDES} |
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sed -e 's|[ ]*$||' -e 's|^[ ]*||')"
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;;
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*)
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if [ ${_LH_ENABLED} -eq 1 ]
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then
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echo "${_LH_LINE}"
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fi
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;;
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esac
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done < "${_LH_LIST_LOCATION}"
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done
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}
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