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一 操作系统版本
openEuler 20.03
# cat /etc/openEuler-release
openEuler release 20.03 (LTS)
[root@openeuler-test ~]# uname -a
Linux openeuler-test 4.19.90-2003.4.0.0036.oe1.x86_64 #1 SMP Mon Mar 23 19:10:41 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
二 设置yum源
# mount -oloop openEuler-20.03-LTS-everything-x86_64-dvd.iso /mnt
# vim /etc/yum.repos.d/openEuler_x86_64.repo
[iso]
name=iso
baseurl=file:///mnt
gpgcheck=0
enable=1
三 安装osc rpm
下载
# wget https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/31/Everything/x86_64/os/Packages/p/python3-lxml-4.4.0-1.fc31.x86_64.rpm
# wget https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/31/Everything/aarch64/os/Packages/o/osc-0.165.1-255.1.2.fc31.1.noarch.rpm
# wget https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/31/Everything/aarch64/os/Packages/o/osc-source_validator-0.10-5.fc31.noarch.rpm
# wget https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/31/Everything/x86_64/os/Packages/o/obs-build-20190321-314.1.1.fc31.1.noarch.rpm
# wget https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/31/Everything/x86_64/os/Packages/o/obs-build-mkbaselibs-20190321-314.1.1.fc31.1.noarch.rpm
# wget https://download-ib01.fedoraproject.org/pub/fedora/linux/releases/31/Everything/x86_64/os/Packages/o/obs-build-mkdrpms-20190321-314.1.1.fc31.1.noarch.rpm
安装
# dnf install -y python3-lxml-4.4.0-1.fc31.x86_64.rpm
# dnf install -y osc-0.165.1-255.1.2.fc31.1.noarch.rpm
# dnf install -y obs-build-20190321-314.1.1.fc31.1.noarch.rpm obs-build-mkbaselibs-20190321-314.1.1.fc31.1.noarch.rpm obs-build-mkdrpms-20190321-314.1.1.fc31.1.noarch.rpm
# dnf install -y osc-source_validator-0.10-5.fc31.noarch.rpm
四 创建新project并checkout到本地
1）登录华为的obs注册用户
http://openeuler-build.huawei.com
记录用户名和密码(本文中用户名为test)
2）web界面obs创建自己的项目，名称为test_project，也就是home:test:test_project
3）checkout project到本地
# mkdir ~/obs
# cd ~/obs
# osc checkout home:test:test_project
Your user account / password are not configured yet.
You will be asked for them below, and they will be stored in
/root/.config/osc/oscrc for future use.
Creating osc configuration file /root/.config/osc/oscrc ...
Username: test # 注册用户
Password: # 注册用户口令
done
Server returned an error: HTTP Error 401: Unauthorized # 提示认证失败信息
修改位于osc配置文件：
编辑 ~/.oscrc（建议普通用户）或者/root/.config/osc/oscrc
# vi /root/.config/osc/oscrc
编辑以下内容：
[general]
apiurl = http://openeuler-build.huawei.com/
[http://openeuler-build.huawei.com/]
user = test #注册用户
pass = 密码 # 注册用户口令
再次checkout
# osc checkout home:test:test_project
WARNING: SSL certificate checks disabled. Connection is insecure!
A home:test;test_project
五 创建project的meta信息
设置project meta信息使用（建议通过web界面，设置repositories以及arch等）：
# osc meta prj -e home:test:test_project
六 新建package
1) 进入project目录
# cd home\:test\:test_project
2) 新建Package
以zsh包为示例：
第一种方法：
# osc mkpac zsh
# cd zsh
将源码放入到该目录，主要是以【tar包、所有patch、spec文件、其他source文件】格式放置，不能是src.rpm包
（或者通过src.rpm包：rpm2cpio /tmp/src/zsh-5.7.1-4.oe1.src.rpm | cpio -iudm）
第二种方法：
# osc importsrcpkg --name=zsh /tmp/src/zsh-5.7.1-4.oe1.src.rpm
创建package meta信息以及zsh目录，并将zsh-5.7.1-4.oe1.src.rpm解压到zsh目录
# cd zsh
3) 向新创建的package中添加以上文件
# osc add *
4) 将更改上传至服务器：
# osc commit -m"Init 2020-02-01"
5) 更新包
进入project文件夹：
# cd [project名]
更新本地代码为最新代码：
# osc up
6) 如果仓库中已有包，可以如下：
# osc checkout home\:test\:test_project/zsh
或者
# osc checkout home\:test\:test_project zsh
（适用于项目中存在大量package，通过checkout一个package，将整个项目meta信息拉取到本地）
八 问题
1）执行osc importsrcpkg提示信息如下
# osc importsrcpkg kronosnet-1.15-1.el7.src.rpm
WARNING: SSL certificate checks disabled. Connection is insecure!
Traceback (most recent call last):
File "/usr/bin/osc", line 41, in <module>
r = babysitter.run(osccli)
File "/usr/lib/python3.7/site-packages/osc/babysitter.py", line 61, in run
return prg.main(argv)
File "/usr/lib/python3.7/site-packages/osc/cmdln.py", line 344, in main
return self.cmd(args)
File "/usr/lib/python3.7/site-packages/osc/cmdln.py", line 367, in cmd
retval = self.onecmd(argv)
File "/usr/lib/python3.7/site-packages/osc/cmdln.py", line 501, in onecmd
return self._dispatch_cmd(handler, argv)
File "/usr/lib/python3.7/site-packages/osc/cmdln.py", line 1232, in _dispatch_cmd
return handler(argv[0], opts, *args)
File "/usr/lib/python3.7/site-packages/osc/commandline.py", line 7881, in do_importsrcpkg
createPackageDir(os.path.join(project.dir, pac), project)
File "/usr/lib64/python3.7/posixpath.py", line 94, in join
genericpath._check_arg_types('join', a, *p)
File "/usr/lib64/python3.7/genericpath.py", line 151, in _check_arg_types
raise TypeError("Can't mix strings and bytes in path components") from None
TypeError: Can't mix strings and bytes in path components
正确用法：
# osc importsrcpkg --name kronosnet /tmp/src/kronosnet-1.15-1.el7.src.rpm
2）openeuler-build从gitee获取src源码进行编译
https://openeuler.org/zh/blog/2020/03/26/2020-03-26-OBS-with-Git.html
openeuler-build中创建package，进入package中Add file
Filename输入：ioprocess
File URL输入：https://gitee.com/openkylin/ioprocess.git
点击Save后报错
继续进入ioprocess包的界面
编辑_service内容，其他内容不变，只改标注的地方内容
<services>
<service name="tar_scm">
<param name="scm">git</param>
<param name="filename">ioprocess</param> # 改为自己的需要从gitee上取得的包名
<param name="url">https://gitee.com/openkylin/ioprocess.git</param> #改为包在gitee上的url地址
</service>
<service name="extract_file">
<param name="archive">*.*</param>
<param name="files">*/*</param>
</service>
</services>
然后可以正常从gitee拉取源码并自动编译（这种方式目前是无法通过openeuler-build界面修改源码文件，需要在gitee中提交修改，合并到master，obs中点击该包界面中的 Trigger services自动获取最新master代码进行编译）。