132 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			132 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
#!/bin/bash
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# Log everthing to stdout.
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# Use qrexc output only to communicate success/failure
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exec {qrexec_output}>&1
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exec 1>&2
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set -eu -o pipefail
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tmp=
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error() {
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    printf "Error: $1\n" "${@:2}"
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    exit
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}
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exit_ok() {
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    printf "Ok: $2\n" "${@:3}"
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    printf "$1\n" >&$qrexec_output
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    exit
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}
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cleanup() {
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    if [ -n "$tmp" ]; then
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        rm -rf "$tmp"
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    fi
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}
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check_apt_version() {
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    local pkg="$1"
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    local fixed_version="$2"
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    if [ -z "$fixed_version" ] || [ -z "$pkg" ]; then
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        error "Bug: Invalid argument!"
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    fi
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    installed_version="$(dpkg -s $pkg | grep '^Version: ' | cut -d ' ' -f 2)"
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    if [ -z "$installed_version" ]; then
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        error "Failed to get apt version."
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    fi
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    rc=0
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    dpkg --compare-versions "$installed_version" ge "$fixed_version" || rc=$?
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    if [ "$rc" -gt 1 ]; then
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        error "Bug: Failed to compare versions!"
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    fi
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    return $rc
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}
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main() {
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    if [ ! -e /etc/debian_version ]; then
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        exit_ok 'changed=no' 'Not a Debian.'
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    fi
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    trap cleanup EXIT
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    tmp="$(mktemp -d --tmpdir)"
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    codename="$(cat /etc/debian_version)"
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    case "$codename" in
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        */sid)
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            # We will treat testing as sid here. This hopefully won't break
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            # anything ...
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            codename="sid"
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            pkg="libapt-pkg5.0"
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            fixed_version="1.8.0~alpha3.1"
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            ;;
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        8.*)
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            codename="jessie"
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            pkg="libapt-pkg4.12"
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            fixed_version="1.0.9.8.5"
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            ;;
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        9.*)
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            codename="stretch"
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            pkg="libapt-pkg5.0"
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            fixed_version="1.4.9"
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            ;;
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        *)
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            error 'Error: Could not determine Debian release!'
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    esac
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    if check_apt_version "$pkg" "$fixed_version"; then
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        exit_ok 'changed=no' 'Nothing to do, apt already fixed.'
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    fi
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    : > "$tmp/sources.list"
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    mkdir "$tmp/sources.list.d"
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    # Make sure that any old (maybe bogus) list is removed.
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    apt-get \
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        -o "Acquire::http::AllowRedirect=false" \
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        -o "Dir::Etc::SourceList=$tmp/sources.list" \
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        -o "Dir::Etc::SourceParts=$tmp/sources.list.d" \
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        --list-cleanup \
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        update
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    printf 'deb http://cdn-fastly.deb.debian.org/debian %s main\n' "$codename" > "$tmp/sources.list"
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    if [ "$codename" != "sid" ]; then
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        printf 'deb http://cdn-fastly.deb.debian.org/debian-security %s/updates main\n' "$codename" >> "$tmp/sources.list"
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    fi
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    # Don't fetch Translation and Contents file. We don't need them and we will
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    # throw them away later anyway.
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    apt-get \
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        -o "Acquire::http::AllowRedirect=false" \
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        -o "Acquire::Languages=none" \
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        -o "Acquire::IndexTargets::deb::Contents-deb::DefaultEnabled=false" \
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        -o "Dir::Etc::SourceList=$tmp/sources.list" \
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        -o "Dir::Etc::SourceParts=$tmp/sources.list.d" \
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        update
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    apt-get \
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        -o "Acquire::http::AllowRedirect=false" \
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        -o "Dir::Etc::SourceList=$tmp/sources.list" \
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        -o "Dir::Etc::SourceParts=$tmp/sources.list.d" \
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        --no-remove \
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        --only-upgrade \
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        -y \
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        install "$pkg"
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    if ! check_apt_version "$pkg" "$fixed_version"; then
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        error 'apt version is still not fixed!'
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    fi
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    # Run update again to restore normal package sources.
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    apt-get update
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    exit_ok 'changed=yes' "Done."
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}
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main
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