Incomplete libc packages and directories available in option entries

[YOURLEGEND]

问题

在 ~/glibc-all-in-one/libs 目录下部分libc版本文件缺失，例如

• 2.23-0ubuntu7_amd64 下没有任何文件
• 2.23-0ubuntu6_amd64 下目录 .debug 为空

但是在xclibc选项中还可以看到以上选项

编写如下bash脚本以检测缺失哪些文件库和调试文件

#!/bin/bash

# Check if a directory is provided
if [ "$#" -ne 1 ]; then
    echo "Usage: $0 <directory>"
    exit 1
fi

START_DIR="$1"

# Traverse directories and check for your conditions
find "$START_DIR" -maxdepth 1 -type d | while read dir; do
    # Check if the directory contains any non-hidden files
    if [ -z "$(find "$dir" -maxdepth 1 -type f ! -name '.*')" ]; then
        echo "Directory without files (excluding hidden ones): $dir"
    fi

    # Check for .debug directory
    if [ ! -d "$dir/.debug" ]; then
        echo "Missing .debug directory: $dir/.debug"
    else
        # Check if .debug directory contains files
        if [ -z "$(find "$dir/.debug" -type f ! -name '.*')" ]; then
            echo ".debug directory without files (excluding hidden ones): $dir/.debug"
        fi
    fi
    
done

在个人环境下的运行结果如下

~/glibc-all-in-one/libs$ ./checkout.sh .
Missing .debug directory: ./.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu3_i386/.debug
Directory without files (excluding hidden ones): ./2.23-0ubuntu11_i386
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.8_amd64/.debug
Directory without files (excluding hidden ones): ./2.27-0ubuntu2_amd64
Directory without files (excluding hidden ones): ./2.31-0ubuntu2_i386
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.6_i386/.debug
Directory without files (excluding hidden ones): ./2.31-0ubuntu1_amd64
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.9_amd64/.debug
Directory without files (excluding hidden ones): ./2.23-0ubuntu11.2_i386
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.4_amd64/.debug
Directory without files (excluding hidden ones): ./2.18-0ubuntu1_i386
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu5_amd64/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.9_i386
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu5_i386/.debug
Directory without files (excluding hidden ones): ./2.18-0ubuntu5_amd64
Directory without files (excluding hidden ones): ./2.19-0ubuntu1_i386
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu5_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu2_i386/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.10_i386
Directory without files (excluding hidden ones): ./2.31-0ubuntu4_amd64
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu5_i386/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.7_i386/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu1_amd64
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.2_i386/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.1_amd64
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.2_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.21-0ubuntu6_amd64/.debug
Directory without files (excluding hidden ones): ./2.18-0ubuntu4_amd64
.debug directory without files (excluding hidden ones): ./2.26-0ubuntu4_i386/.debug
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu2_amd64/.debug
Directory without files (excluding hidden ones): ./2.31-0ubuntu7_i386
.debug directory without files (excluding hidden ones): ./2.26-0ubuntu3_i386/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu2_i386/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.13_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu7_amd64/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.13_i386
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.8_i386
Directory without files (excluding hidden ones): ./2.27-3ubuntu1.4_i386
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.15_i386/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.3_amd64/.debug
Directory without files (excluding hidden ones): ./2.31-0ubuntu9.2_i386
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.3_i386/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6_i386
Directory without files (excluding hidden ones): ./2.23-0ubuntu7_amd64
Directory without files (excluding hidden ones): ./2.19-0ubuntu4_amd64
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.5_amd64
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu11.2_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu9.1_amd64/.debug
Directory without files (excluding hidden ones): ./2.31-0ubuntu8_i386
.debug directory without files (excluding hidden ones): ./2.17-93ubuntu4_i386/.debug
Directory without files (excluding hidden ones): ./2.31-0ubuntu3_amd64
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu3_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu2_amd64/.debug
Directory without files (excluding hidden ones): ./2.17-93ubuntu4_amd64
.debug directory without files (excluding hidden ones): ./2.27-3ubuntu1.3_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu1_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu7_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.11_i386/.debug
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu6_amd64/.debug
Directory without files (excluding hidden ones): ./2.23-0ubuntu9_amd64
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu6_amd64/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.14_amd64
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu4_i386/.debug
Directory without files (excluding hidden ones): ./2.18-0ubuntu2_amd64
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu6_i386/.debug
.debug directory without files (excluding hidden ones): ./2.30-0ubuntu3_i386/.debug
Directory without files (excluding hidden ones): ./2.27-0ubuntu3_i386
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu3_i386/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.6_amd64
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.15_amd64/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.7_amd64
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu9.2_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu9_i386/.debug
.debug directory without files (excluding hidden ones): ./2.27-0ubuntu2_i386/.debug
Directory without files (excluding hidden ones): ./2.27-3ubuntu1.3_i386
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu9.1_i386/.debug
Directory without files (excluding hidden ones): ./2.18-0ubuntu6_i386
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.5_i386
Directory without files (excluding hidden ones): ./2.23-0ubuntu10_amd64
Directory without files (excluding hidden ones): ./2.31-0ubuntu9.3_amd64
.debug directory without files (excluding hidden ones): ./2.26-0ubuntu3_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu3_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.21-0ubuntu6_i386/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6_amd64
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu2_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.27-3ubuntu1.2_amd64/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.1_i386
.debug directory without files (excluding hidden ones): ./2.30-0ubuntu3_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.27-3ubuntu1.2_i386/.debug
Directory without files (excluding hidden ones): ./2.31-0ubuntu1_i386
Directory without files (excluding hidden ones): ./2.23-0ubuntu1_i386
.debug directory without files (excluding hidden ones): ./2.27-3ubuntu1.4_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu9.3_i386/.debug
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.14_i386
.debug directory without files (excluding hidden ones): ./2.27-0ubuntu3_amd64/.debug
Directory without files (excluding hidden ones): ./2.21-0ubuntu5_amd64
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu6_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu5_amd64/.debug
Directory without files (excluding hidden ones): ./2.23-0ubuntu10_i386
Directory without files (excluding hidden ones): ./2.19-0ubuntu4_i386
Directory without files (excluding hidden ones): ./2.31-0ubuntu4_i386
Directory without files (excluding hidden ones): ./2.18-0ubuntu7_i386
Directory without files (excluding hidden ones): ./2.23-0ubuntu7_i386
Directory without files (excluding hidden ones): ./2.19-0ubuntu6.4_i386
Directory without files (excluding hidden ones): ./2.26-0ubuntu4_amd64
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu3_i386/.debug
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu5_i386/.debug
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu5_i386/.debug
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu2_i386/.debug
.debug directory without files (excluding hidden ones): ./2.31-0ubuntu8_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.10_amd64/.debug
Directory without files (excluding hidden ones): ./2.23-0ubuntu6_i386
Directory without files (excluding hidden ones): ./2.21-0ubuntu5_i386
.debug directory without files (excluding hidden ones): ./2.18-0ubuntu4_i386/.debug
.debug directory without files (excluding hidden ones): ./2.19-0ubuntu6.11_amd64/.debug
.debug directory without files (excluding hidden ones): ./2.23-0ubuntu4_amd64/.debug

建议解决方案

各个版本的libc库无非由原libc文件和调试用libc文件组成：

• 如果两者都没有，则从选项中删除
• 如果有前者没有后者，可以不做处理，但建议在选项中标出
• 如果没有前者有后者，建议将后者直接拷贝至前者
• 如果两者都有，则不处理

实现可以有以下三种方式，任选一种：

• 对libc单独维护其完整性信息，写入文件；编码成本中等，但有可能不小心对文件误操作会导致不统一问题，风险高
• 对目录做出标记(如在目录中写入隐藏文件，目录名做标记等等)，最建议，编码成本小、改动小并且回显快
• 运行程序实时检测各库的存在性；风险低，但是回显慢

[ef4tless]

感谢你的issue，你提到的缺少完整性校验确实是一个问题，我在1.4版本中添加了执行xclibc -d 进行下载会检查libc文件夹下是否存在.debug目录和libc.so.6文件，如果不存在会提示并删除该文件夹，这应该能解决大部分完整性校验的问题。唯一缺少校验的点是批量下载自定义url的功能，这个部分会在后续版本里更新。