krawler

README

Krawler: a kernel releases crawler

A crawler for kernel releases distributed by the major Linux distributions.

It supports, Amazon Linux v1, Amazon Linux v2, Amazon Linux 2022, Centos, Debian, Ubuntu, Fedora, Oracle Linux, OpenSUSE Linux, Arch Linux.

The crawling data is continuously published and is available at db.krawler.io.

Usage

krawler [options] <command>

Options

• -c, --config file: (optional) the config file to customize the list of mirrors to scrape for kernel releases (by default it looks at $HOME/.krawler.yaml).
• -v, --verbosity level: (optional) the verbosity level (debug, info, warn, error, fatal, panic). By (default warning).

Commands

list|ls

List available kernel releases with distributed headers, by Linux distribution. It returns a list of kernelRelease objects. The output format can be specified by flag parameter.

krawler [options] list|ls <distribution> [-o <format>] 

Parameters

distribution: (required) The Linux distribution for which the release has been pubished. Available distributions:

• amazonlinux
• amazonlinux2
• amazonlinux2022
• centos
• debian
• ubuntu
• fedora
• oracle
• opensuse
• archlinux

Options

-o, --output format: (optional) the format of the output of the list of kernel releases (one of text, json or yaml). By default yaml.

Output

The list|ls command prints on standard ouput a is a list of kernel release objects of type KernelRelease.

An example of a json result entry:

{
  "full_version": "4.18.0",
  "version": 4,
  "patch_level": 18,
  "sublevel": 0,
  "extra_version": "331",
  "full_extra_version": "-331.el8.aarch64",
  "architecture": "aarch64",
  "package_name": "kernel-devel",
  "package_url": "https://mirrors.edge.kernel.org/centos/8-stream/BaseOS/aarch64/os/Packages/kernel-devel-4.18.0-331.el8.aarch64.rpm",
  "compiler_version": "80500"
}

Getting started

Let's imagine you want to list the available CentOS kernel releases, scraping default mirrors. You do it by running:

krawler ls centos

Configuration

A configuration lets you configure parameters for the crawling, like the mirrors to scrape.

The default configuration file path is $HOME/.krawler.yaml. You can specify a custom path with the --config option.

When a configuration is not present, a default configurations for repositories are used (for example this is the default for Centos).

For a detailed overview see the reference.

Moreover, sample configurations are available here.

Roadmap

• Provide GCC versions for all releases
• Support new distributions

Documentation

Overview

Copyright © 2022 maxgio92 me@maxgio.it

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.