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path: root/pkgs/development/libraries/qt-5/hooks/wrap-qt-apps-hook.sh
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# Inherit arguments given in mkDerivation
qtWrapperArgs=( $qtWrapperArgs )

qtHostPathSeen=()

qtUnseenHostPath() {
    for pkg in "${qtHostPathSeen[@]}"
    do
        if [ "${pkg:?}" == "$1" ]
        then
            return 1
        fi
    done

    qtHostPathSeen+=("$1")
    return 0
}

qtHostPathHook() {
    qtUnseenHostPath "$1" || return 0

    local pluginDir="$1/${qtPluginPrefix:?}"
    if [ -d "$pluginDir" ]
    then
        qtWrapperArgs+=(--prefix QT_PLUGIN_PATH : "$pluginDir")
    fi

    local qmlDir="$1/${qtQmlPrefix:?}"
    if [ -d "$qmlDir" ]
    then
        qtWrapperArgs+=(--prefix QML2_IMPORT_PATH : "$qmlDir")
    fi
}
addEnvHooks "$hostOffset" qtHostPathHook

makeQtWrapper() {
    local original="$1"
    local wrapper="$2"
    shift 2
    makeWrapper "$original" "$wrapper" "${qtWrapperArgs[@]}" "$@"
}

wrapQtApp() {
    local program="$1"
    shift 1
    wrapProgram "$program" "${qtWrapperArgs[@]}" "$@"
}

qtOwnPathsHook() {
    local xdgDataDir="${!outputBin}/share"
    if [ -d "$xdgDataDir" ]
    then
        qtWrapperArgs+=(--prefix XDG_DATA_DIRS : "$xdgDataDir")
    fi

    local xdgConfigDir="${!outputBin}/etc/xdg"
    if [ -d "$xdgConfigDir" ]
    then
        qtWrapperArgs+=(--prefix XDG_CONFIG_DIRS : "$xdgConfigDir")
    fi

    qtHostPathHook "${!outputBin}"
}

preFixupPhases+=" qtOwnPathsHook"

# Note: $qtWrapperArgs still gets defined even if $dontWrapQtApps is set.
wrapQtAppsHook() {
    # skip this hook when requested
    [ -z "$dontWrapQtApps" ] || return 0

    # guard against running multiple times (e.g. due to propagation)
    [ -z "$wrapQtAppsHookHasRun" ] || return 0
    wrapQtAppsHookHasRun=1

    local targetDirs=( "$prefix/bin" "$prefix/libexec"  )
    echo "wrapping Qt applications in ${targetDirs[@]}"

    for targetDir in "${targetDirs[@]}"
    do
        [ -d "$targetDir" ] || continue

        find "$targetDir" ! -type d -executable -print0 | while IFS= read -r -d '' file
        do
            patchelf --print-interpreter "$file" >/dev/null 2>&1 || continue

            if [ -f "$file" ]
            then
                echo "wrapping $file"
                wrapQtApp "$file"
            elif [ -h "$file" ]
            then
                target="$(readlink -e "$file")"
                echo "wrapping $file -> $target"
                rm "$file"
                makeQtWrapper "$target" "$file"
            fi
        done
    done
}

fixupOutputHooks+=(wrapQtAppsHook)