OpenWrt – Rev 3

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#!/usr/bin/env bash
set -e

pkg_dir=$1

if [ -z $pkg_dir ] || [ ! -d $pkg_dir ]; then
        echo "Usage: ipkg-make-index <package_directory>" >&2
        exit 1
fi

empty=1

for pkg in `find $pkg_dir -name '*.ipk' | sort`; do
        empty=
        name="${pkg##*/}"
        name="${name%%_*}"
        [[ "$name" = "kernel" ]] && continue
        [[ "$name" = "libc" ]] && continue
        echo "Generating index for package $pkg" >&2
        file_size=$(ls -l $pkg | awk '{print $5}')
        sha256sum=$(mkhash sha256 $pkg)
        # Take pains to make variable value sed-safe
        sed_safe_pkg=`echo $pkg | sed -e 's/^\.\///g' -e 's/\\//\\\\\\//g'`
        tar -xzOf $pkg ./control.tar.gz | tar xzOf - ./control | sed -e "s/^Description:/Filename: $sed_safe_pkg\\
Size: $file_size\\
SHA256sum: $sha256sum\\
Description:/"
        echo ""
done
[ -n "$empty" ] && echo
exit 0