diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000000000000000000000000000000000000..cba1f52dc4347b15ff5ce1fffbc2dc2a8c8a6157 --- /dev/null +++ b/.gitmodules @@ -0,0 +1,3 @@ +[submodule "reproducible-builds-libfaketime"] + path = reproducible-builds-libfaketime + url = https://github.com/opensourceways/reproducible-builds-libfaketime.git diff --git a/COPYING b/COPYING new file mode 100644 index 0000000000000000000000000000000000000000..0a98ec0ff25a770509a048d2f9a3121c5c015f53 --- /dev/null +++ b/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. \ No newline at end of file diff --git a/README.en.md b/README.en.md index d27791f8402b68c59d87a11e766b7a0934147b87..866e42ad26e5cfbae3cd76be088647c7e03c83eb 100644 --- a/README.en.md +++ b/README.en.md @@ -1,36 +1,53 @@ -# reproducible-builds +# reproducibleopeneuler +These tools are intended to make it easier to verify that the binaries resulting from openEuler builds are reproducible. + +For this, we rebuild twice locally from source with variations in + +* datetime +* hostname + +within opensource libfaketime in Open Build Service(OBS), +unpack the differenc packages and compare the results using the build-compare script (diffoscope) that abstracts away some unavoidable (or unimportant) differences. + +Steps: +1. Install libfaketime： +get libfaketime source https://github.com/opensourceways/reproducible-builds-libfaketime +``` +make +make install +``` +2. To mock datetime and hostname, set the libfaketime environment +``` +echo 'export LD_PRELOAD=/usr/local/lib/faketime/libfaketimeMT.so.1' >> /etc/profile +echo 'export FAKETIME="2022-05-01 11:12:13"' >> /etc/profile +echo 'export FAKEHOSTNAME=fakename' >> /etc/profile +``` +3. Solve the binary differences caused by time & random numbers in Python during the compilation of source packages +``` +echo 'export SOURCE_DATE_EPOCH=1' >> /etc/profile +echo 'export PYTHONHASHSEED=0' >> /etc/profile +``` +4. We added a blacklist and whitelist mechanism to libfaketime, In blacklist mode, libfaketime only hooks commands in the blacklist; In white list mode, libfaketime will skip the commands in the white list and hook all other commands. + Users can use the blacklist or whitelist function by downloading the corresponding branch. For example: +``` +# blacklist mode +export BLACKLIST=ls,make + +# whitelist mode +export WHITELIST=ls,make +``` +5. In OBS, the hostname used in the build will be entered into the rpm package and the two builds will be inconsistent. Therefore, we also integrate the function of hooking hostname in libfaketime.This function is currently integrated in the whitelist branch. +``` +export FAKENAME=fakename +``` +6. OBS rebuild packages twice locally from software source +7. Unpack your two packages using the unpacker.py tool +``` +python unpacker.py ${first package path} ${second package path} +``` +8. Display differences using diffoscope : +``` +yum install diffoscope +diffoscope ${first file path} ${second file path} --html diff.html +``` -#### Description -The repository for reproducible builds SIG - -#### Software Architecture -Software architecture description - -#### Installation - -1. xxxx -2. xxxx -3. xxxx - -#### Instructions - -1. xxxx -2. xxxx -3. xxxx - -#### Contribution - -1. Fork the repository -2. Create Feat_xxx branch -3. Commit your code -4. Create Pull Request - - -#### Gitee Feature - -1. You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md -2. Gitee blog [blog.gitee.com](https://blog.gitee.com) -3. Explore open source project [https://gitee.com/explore](https://gitee.com/explore) -4. The most valuable open source project [GVP](https://gitee.com/gvp) -5. The manual of Gitee [https://gitee.com/help](https://gitee.com/help) -6. The most popular members [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/) diff --git a/README.md b/README.md index 4fdd0b246a7c82a81c702a19c36b13d700499af2..4a4310bb88e07d6688dae8aa8ca38e19a6f5a134 100644 --- a/README.md +++ b/README.md @@ -1,37 +1,52 @@ -# reproducible-builds +# reproducibleopeneuler +可重复构建sig组通过一系列开源工具，使openEuler构建的软件能达到可重复构建的目标。 + +为此，我们在执行两次Open Build Service(OBS)重复构建时，主要打桩了以下两个参数，使用的开源软件是libfaketime ： + +* datetime +* hostname + +通过unpack解压工具将不一致的包解压出结果，解压出的不一致结果通过(diffoscope)显式展示出具体不同点，用以后续消费分析，最终整改达到消除差异的目的。 + +可重复构建详细步骤： +1. 安装 libfaketime： +libfaketime源码地址： https://github.com/opensourceways/reproducible-builds-libfaketime +``` +make +make install +``` +2. 设置 libfaketime 环境变量，打桩datetime和hostname +``` +echo 'export LD_PRELOAD=/usr/local/lib/faketime/libfaketimeMT.so.1' >> /etc/profile +echo 'export FAKETIME="2022-05-01 11:12:13"' >> /etc/profile +echo 'export FAKEHOSTNAME=fakename' >> /etc/profile +``` +3. 额外设置在Python包中因 time 和 random numbers 导致的不可重复 +``` +echo 'export SOURCE_DATE_EPOCH=1' >> /etc/profile +echo 'export PYTHONHASHSEED=0' >> /etc/profile +``` +4. Sig组通过在libfaketime中设置对系统算法黑/白名单来达到消除系统差异的目的。 在黑名单模式中，libfaketime 只会劫持黑名单中的命令，而在白名单模式中，libfaketime 劫持除白名单中命令以外的所有命令。 + 用户可以根据自己的需求，下载对应分支使用白名单或者黑名单模式： +``` +# blacklist mode +export BLACKLIST=ls,make + +# whitelist mode +export WHITELIST=ls,make +``` +5. 在OBS构建系统中，hostname会导致rpm包的两次构建出现不一致. 因此,我们也在libfaketime中集成了挂接主机名的功能,目前该功能集成在白名单分支中。 +``` +export FAKENAME=fakename +``` +6. 完成上诉配置步骤后，在OBS中构建两次软件包 +7. 使用如下命令，使用unpacker将不一致的包进行解压 +``` +python unpacker.py ${first package path} ${second package path} +``` +8. 安装 diffoscope 并显示具体的差异点： +``` +yum install diffoscope +diffoscope ${first file path} ${second file path} --html diff.html +``` -#### 介绍 -The repository for reproducible builds SIG - -#### 软件架构 -软件架构说明 - - -#### 安装教程 - -1. xxxx -2. xxxx -3. xxxx - -#### 使用说明 - -1. xxxx -2. xxxx -3. xxxx - -#### 参与贡献 - -1. Fork 本仓库 -2. 新建 Feat_xxx 分支 -3. 提交代码 -4. 新建 Pull Request - - -#### 特技 - -1. 使用 Readme\_XXX.md 来支持不同的语言，例如 Readme\_en.md, Readme\_zh.md -2. Gitee 官方博客 [blog.gitee.com](https://blog.gitee.com) -3. 你可以 [https://gitee.com/explore](https://gitee.com/explore) 这个地址来了解 Gitee 上的优秀开源项目 -4. [GVP](https://gitee.com/gvp) 全称是 Gitee 最有价值开源项目，是综合评定出的优秀开源项目 -5. Gitee 官方提供的使用手册 [https://gitee.com/help](https://gitee.com/help) -6. Gitee 封面人物是一档用来展示 Gitee 会员风采的栏目 [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/) diff --git a/reproducible-builds-libfaketime b/reproducible-builds-libfaketime new file mode 160000 index 0000000000000000000000000000000000000000..df8a04559743c9de6fbad0e8279ee69ea09b914c --- /dev/null +++ b/reproducible-builds-libfaketime @@ -0,0 +1 @@ +Subproject commit df8a04559743c9de6fbad0e8279ee69ea09b914c diff --git a/unpacker.py b/unpacker.py new file mode 100644 index 0000000000000000000000000000000000000000..c8d390f3ca9433b14325834808b09942a5c38ba7 --- /dev/null +++ b/unpacker.py @@ -0,0 +1,203 @@ +import argparse +import hashlib +import logging +import os +import shutil +import subprocess +import sys +import tempfile +# import py7zr +import zipfile + + +class CommonFunCmd: + @staticmethod + def subprocess_func(cmd, *args, exit=True, cwd=None): + logging.info("start to execute the command: " + cmd) + try: + p = subprocess.Popen(cmd, shell=True, cwd=cwd) + p.wait() + return_code = p.returncode + if return_code != 0: + print(return_code) + raise Exception(return_code) + except Exception as e: + if exit: + logging.error("Command:%s\n Reason:%s\n%s" % (cmd, e.__str__(), "".join(tuple(args)))) + raise Exception(cmd) + else: + logging.error("Command:%s\n Reason:%s\n%s" % (cmd, e.__str__(), "".join(tuple(args)))) + + @staticmethod + def subprocess_result(cmd, *args, exit=True, cwd=None): + logging.info("start to execute the command: " + cmd) + sys.getfilesystemencoding() + out_temp = tempfile.TemporaryFile(mode='w+') + try: + file_no = out_temp.fileno() + chd = subprocess.Popen(cmd, shell=True, stdout=file_no, cwd=cwd) + chd.wait() + out_temp.seek(0) + res = out_temp.read().strip().split('\n')[0] + return res + except Exception as e: + if exit: + logging.error("Command:%s\n Reason:%s\n%s" % (cmd, e.__str__(), "".join(tuple(args)))) + raise Exception(cmd) + else: + logging.error("Command:%s\n Reason:%s\n%s" % (cmd, e.__str__(), "".join(tuple(args)))) + finally: + if out_temp: + out_temp.close() + + +class Unpack: + def __init__(self, args=None): + self.args = args + self.same = True + self.file1 = os.path.abspath(args[0]) + self.file2 = os.path.abspath(args[1]) + + @staticmethod + def get_md5(file): + md5 = hashlib.md5() + with open(file, "rb") as f: + while True: + date = f.read(4096) + if not date: + break + md5.update(date) + # cmd = "md5sum {}".format(file) + # md5 = CommonFunCmd.subprocess_result(cmd) + return md5.hexdigest() + + def compare_md5(self, file1, file2): + if self.get_md5(file1) == self.get_md5(file2): + return True + else: + return False + + @staticmethod + def deal_tgz(file, dir_name): + path_name = os.path.dirname(os.path.abspath(file)) + if dir_name != "": + Unpack.pre_act(dir_name, file, path_name) + CommonFunCmd.subprocess_func("tar -xf {} ".format(os.path.basename(file)), + cwd=os.path.join(path_name, dir_name)) + os.remove(os.path.join(path_name, dir_name, os.path.basename(file))) + return os.path.join(path_name, dir_name) + + @staticmethod + def deal_rpm(file, dir_name): + path_name = os.path.dirname(os.path.abspath(file)) + if dir_name != "": + Unpack.pre_act(dir_name, file, path_name) + CommonFunCmd.subprocess_func("rpm2cpio {} | cpio -idm".format(os.path.basename(file)), + cwd=os.path.join(path_name, dir_name)) + os.remove(os.path.join(path_name, dir_name, os.path.basename(file))) + return os.path.join(path_name, dir_name) + + @staticmethod + def deal_zip(file, dir_name): + path_name = os.path.dirname(os.path.abspath(file)) + if dir_name != "": + Unpack.pre_act(dir_name, file, path_name) + fz = zipfile.ZipFile(os.path.join(path_name, dir_name, os.path.basename(file)), 'r') + + for f in fz.namelist(): + fz.extract(f, path=os.path.join(path_name, dir_name)) + fz.close() + os.remove(os.path.join(path_name, dir_name, os.path.basename(file))) + return os.path.join(path_name, dir_name) + + def unpack(self, file, dir_name=""): + if file.endswith(".tar.gz"): + return self.deal_tgz(file, dir_name) + elif file.endswith(".rpm"): + return self.deal_rpm(file, dir_name) + elif file.endswith(".zip"): + return self.deal_zip(file, dir_name) + + def get_all_file(self, bate_path, path, elem=None): + if elem is None: + elem = [] + for root, ds, fs in os.walk(path): + for f in fs: + full_path = os.path.join(root, f) + if full_path.endswith(".tar.gz") or full_path.endswith(".rpm") or full_path.endswith(".zip"): + self.get_all_file(bate_path, self.unpack(full_path), elem) + else: + rela_path = full_path[len(bate_path):] + elem.append(rela_path) + return elem + + def compare_dir(self, path1, path2): + # base_path1 = + files1 = self.get_all_file(path1, path1) + files2 = self.get_all_file(path2, path2) + + set1 = set(files1) + set2 = set(files2) + + common_files = set1 & set2 + + for file in common_files: + # if not self.compare_md5(os.path.join(path1, file), os.path.join(path2, file)): + if not self.compare_md5(path1 + '/' + file, path2 + '/' + file): + # TODO 不一致文件信息保存到文件 + self.same = False + print("file {} is not same".format(file)) + + only_files = set1 ^ set2 + only_set1 = [] + only_set2 = [] + for file in only_files: + if file in files1: + only_set1.append(file) + elif file in files2: + only_set2.append(file) + + if len(only_set1) != 0: + self.same = False + print("file {} is only in file1".format(only_set1)) + if len(only_set2) != 0: + self.same = False + print("file {} is only in file2".format(only_set2)) + + return + + @staticmethod + def pre_act(dir_name, file, path_name): + if not os.path.exists(os.path.join(path_name, dir_name)): + os.makedirs(os.path.join(path_name, dir_name)) + shutil.copy(file, os.path.join(path_name, dir_name)) + + +def create_parser(args): + parser = argparse.ArgumentParser() + parser.add_argument("-e", "--exclude", help="exclude file") + + +def main(args): + unpack = Unpack(args) + create_parser(args) + if os.path.isfile(args[0]) and os.path.isfile(args[1]): + is_same = unpack.compare_md5(args[0], args[1]) + if not is_same: + path_dir1 = unpack.unpack(args[0], "unpack_tmp1") + path_dir2 = unpack.unpack(args[1], "unpack_tmp2") + unpack.compare_dir(path_dir1, path_dir2) + shutil.rmtree(path_dir1) + shutil.rmtree(path_dir2) + if unpack.same: + print("Two files are same!") + else: + print("Two files are not same!") + + else: + logging.error("the arg is not a file!") + + +# 按间距中的绿色按钮以运行脚本。 +if __name__ == '__main__': + main(sys.argv[1:])