@webos-tools/cli/lib/tar-filter-pack.js

Command Line Interface for development webOS application and service

/*
 * Copyright (c) 2020-2024 LG Electronics Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

const collect = require('fstream').collect,
    inherits = require('inherits'),
    path = require('path'),
    tar = require('tar');

module.exports = TarFilterPack;
inherits(TarFilterPack, tar.Pack);

function TarFilterPack(prop) {
    const self = this;

    self.permission = prop.permission;
    if (!(self instanceof TarFilterPack)) {
        return new TarFilterPack(prop);
    }
    TarFilterPack.super.call(self, prop);
}

TarFilterPack.prototype.add = function(stream) {
    if (this._global && !this._didGlobal) {
        this.addGlobal(this._global);
    }

    if (this._ended) {
        return this.emit("error", new Error("add after end"));
    }

    collect(stream);

    if (this.permission[stream.basename]) {
        stream.props.mode = parseInt(this.permission[stream.basename], 8);
    }

    // opkg does not support Posix Tar fully
    if (stream.basename.length !== Buffer.byteLength(stream.basename)) {
        const errFilePath = path.relative(stream.root.props.path, stream.path),
            errMsg = "Please use the file name in english letters. \n\t\t (" + errFilePath + ")",
            em = new(require('events').EventEmitter)();

        em.emit('error', new Error(errMsg));
    }

    if (stream.props.uid > 0o7777777) {
        stream.props.uid = 0;
    }

    if (stream.props.gid > 0o7777777) {
        stream.props.gid = 0;
    }

    this._buffer.push(stream);
    this._process();
    this._needDrain = this._buffer.length > 0;

    return !this._needDrain;
};