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最近写文章，反复多次折腾AOSP代码，因通过网络repo sync aosp代码，能一次顺利下载的概率很低，以前就经常遇到，但从未总结，导致自己也要回头检索方法，所以觉得可以总结一下，涉及下载最新、各分支AOSP代码的方法，以及如何处理所遇到的同步错误及其解决方法，现分享给大家~

一、下载源码包及repo

• 包含 aosp-latest.tar 和 repo程序
• 下载TAG包，可以节约很多时间

（1）下载初始化包，约 60GB 数据，建议复制地址，直接使用迅雷下载
szhou@bc-R01:~/works$curl -OC - https://mirrors.tuna.tsinghua.edu.cn/aosp-monthly/aosp-latest.tar （2）解压
szhou@bc-R01:~/works$ mkdir aosp
szhou@bc-R01:~/works$ tar -xvf aosp-latest.tar  -C aosp/（3）下载repo
szhou@bc-R01:~/works/aosp$ mkdir bin
szhou@bc-R01:~/works/aosp$ curl https://storage.googleapis.com/git-repo-downloads/repo > bin/reposzhou@bc-R01:~/works/aosp$ curl https://storage.googleapis.com/git-repo-downloads/repo > bin/repo  % Total    % Received % Xferd  Average Speed   Time    Time     Time  CurrentDload  Upload   Total   Spent    Left  Speed
100 48143  100 48143    0     0  48336      0 --:--:-- --:--:-- --:--:-- 48287（4）部署repo
szhou@bc-R01:~/works/aosp$ chmod a+x bin/repo  
szhou@bc-R01:~/works/aosp$ sudo cp bin/repo /usr/bin/
[sudo] password for szhou: 
szhou@bc-R01:~/works/aosp$ 

二、代码更新

2.1 目录情况

• 解压后，在aosp目录下，只有.repo目录，还需要同步代码和检出代码

szhou@bc-R01:~/works/aosp/aosp$ ls -al
total 12
drwxr-xr-x 3 szhou szhou 4096 10月  1 00:00 .
drwxrwxr-x 4 szhou szhou 4096 12月 24 00:39 ..
drwxr-xr-x 7 szhou szhou 4096 10月  1 00:45 .repo
szhou@bc-R01:~/works/aosp/aosp$ 

2.2 更新.repo/repo 程序

• 第一次更新AOSP源码，记得执行此步骤，可以减少后续repo sync错误

szhou@bc-R01:~/works/aosp/aosp$ ls -al
total 12
drwxr-xr-x 3 szhou szhou 4096 10月  1 00:00 .
drwxrwxr-x 4 szhou szhou 4096 12月 24 00:39 ..
drwxr-xr-x 7 szhou szhou 4096 10月  1 00:45 .repo
szhou@bc-R01:~/works/aosp/aosp$ cd .repo/repo/
szhou@bc-R01:~/works/aosp/aosp/.repo/repo$ git pull
remote: Enumerating objects: 263, done.
remote: Counting objects: 100% (191/191), done.
remote: Compressing objects: 100% (138/138), done.
remote: Total 263 (delta 152), reused 55 (delta 53), pack-reused 72
Receiving objects: 100% (263/263), 264.03 KiB | 11.00 MiB/s, done.
Resolving deltas: 100% (158/158), completed with 12 local objects.
From https://mirrors.tuna.tsinghua.edu.cn/git/git-repo1e9f7b9..4c80921  stable     -> origin/stable83c66ec..b1d1ece  main       -> origin/main* [new tag]         v2.40      -> v2.40* [new tag]         v2.38      -> v2.38* [new tag]         v2.39      -> v2.39
Updating 1e9f7b9..4c80921
Fast-forward.github/workflows/close-pull-request.yml |   22 +++.github/workflows/test-ci.yml            |    5 +-color.py                                 |    4 +-
…… 略……tests/test_wrapper.py                    |    2 +-tox.ini                                  |    7 +-60 files changed, 3043 insertions(+), 2389 deletions(-)create mode 100644 .github/workflows/close-pull-request.ymlcreate mode 100644 git_trace2_event_log_base.py
szhou@bc-R01:~/works/aosp/aosp/.repo/repo$ 

操作如下图所示

2.3 查看可用分支

• 可见13的最新版本为：remotes/origin/android-13.0.0_r82， 即r82版本
• 通过修改grep后的过滤条件，也可以查看其他版本情况

szhou@bc-R01:~/works/aosp/aosp/.repo/manifests.git$ git branch -av | grep android-13remotes/origin/android-13.0.0_r1                                       0f42cde46 Manifest for Android 13.0.0 Release 1 (TP1A.220624.014)remotes/origin/android-13.0.0_r10                                      e64b26003 Manifest for Android 13.0.0 Release 10
…… 略 ……remotes/origin/android-13.0.0_r80                                      4ca496b8e Manifest for Android 13.0.0 Release 80remotes/origin/android-13.0.0_r81                                      259db423b Manifest for Android 13.0.0 Release 81remotes/origin/android-13.0.0_r82                                      ed487956f Manifest for Android 13.0.0 Release 82remotes/origin/android-13.0.0_r9                                       0bac787fd Manifest for Android 13.0.0 Release 9
szhou@bc-R01:~/works/aosp/aosp/.repo/manifests.git$ 

操作如下图所示

2.4 配置Python

• 当前AOSP代码需要Python 3.6以上版本，才可正常使用

2.4.1 Python版本导致的repo sync错误

szhou@bc-R01:~/works/aosp/aosp/.repo/manifests.git$ cd ../..
szhou@bc-R01:~/works/aosp/aosp$ repo init -u https://mirrors.tuna.tsinghua.edu.cn/git/AOSP/platform/manifest -b android-13.0.0_r82File "/usr/bin/repo", line 51def print(self, *args, **kwargs):^
SyntaxError: invalid syntax
szhou@bc-R01:~/works/aosp/aosp$ python --version
Python 2.7.18
szhou@bc-R01:~/works/aosp/aosp$ 

2.4.2 查看可用的Python版本

• 常用Python，至少需安装2.7和3.6以上，两个版本

sudo apt-get install python2.7
（1）查看已安装的Python有哪些版本
szhou@bc-R01:~/works/aosp/aosp$ ls -l /usr/bin/python*
lrwxrwxrwx 1 root root      24 12月 10 20:34 /usr/bin/python -> /etc/alternatives/python
lrwxrwxrwx 1 root root       9 3月  13  2020 /usr/bin/python2 -> python2.7
-rwxr-xr-x 1 root root 3662032 7月   1  2022 /usr/bin/python2.7
lrwxrwxrwx 1 root root      33 7月   1  2022 /usr/bin/python2.7-config -> x86_64-linux-gnu-python2.7-config
lrwxrwxrwx 1 root root      16 3月  13  2020 /usr/bin/python2-config -> python2.7-config
lrwxrwxrwx 1 root root       9 12月 10 08:57 /usr/bin/python3 -> python3.8
-rwxr-xr-x 1 root root 5465880 11月 22 18:22 /usr/bin/python3.8
lrwxrwxrwx 1 root root      33 11月 22 18:22 /usr/bin/python3.8-config -> x86_64-linux-gnu-python3.8-config
lrwxrwxrwx 1 root root      16 3月  13  2020 /usr/bin/python3-config -> python3.8-config
-rwxr-xr-x 1 root root     384 1月  25  2023 /usr/bin/python3-futurize
-rwxr-xr-x 1 root root     388 1月  25  2023 /usr/bin/python3-pasteurize
lrwxrwxrwx 1 root root      14 4月  15  2020 /usr/bin/python-config -> python2-config
szhou@bc-R01:~/works/aosp/aosp$

2.4.3 配置多Python版本支持

• 本人系统中已安装2.7和3.8两个版本

（1）配置多版本支持
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 1
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.8 2（2）执行 --config python后，选择Python3.8, 编号为2
szhou@bc-R01:~/works/aosp/aosp$  sudo update-alternatives --config python
[sudo] password for szhou: 
There are 2 choices for the alternative python (providing /usr/bin/python).Selection    Path                Priority   Status
------------------------------------------------------------0            /usr/bin/python3.8   2         auto mode
* 1            /usr/bin/python2.7   1         manual mode2            /usr/bin/python3.8   2         manual modePress <enter> to keep the current choice[*], or type selection number: 2
update-alternatives: using /usr/bin/python3.8 to provide /usr/bin/python (python) in manual mode
szhou@bc-R01:~/works/aosp/aosp$ （3）查看版本设置情况
szhou@bc-R01:~/works/aosp/aosp$ python --version
Python 3.8.10
szhou@bc-R01:~/works/aosp/aosp$ 

2.5 repo init 初始化分支

• 为了节约repo sync时间，我们可以选定只同步目标分支：android-13.0.0_r82

repo init -u https://mirrors.tuna.tsinghua.edu.cn/git/AOSP/platform/manifest -b android-13.0.0_r82

2.6 repo sync

• 加上 -c 参数，仅同步当前android-13.0.0_r82分支，节约下载时间

szhou@bc-R01:~/works/aosp/aosp$ repo sync -c

三、解决repo sync 错误

3.1 Python 版本引起的错误

• 解决办法： 建议切换到3.8及以上版本
• 多版本支持，请查看本文第2.4.1节

szhou@bc-R01:~/works/aosp/aosp/.repo/manifests.git$ cd ../..
szhou@bc-R01:~/works/aosp/aosp$ repo init -u https://mirrors.tuna.tsinghua.edu.cn/git/AOSP/platform/manifest -b android-13.0.0_r82File "/usr/bin/repo", line 51def print(self, *args, **kwargs):^
SyntaxError: invalid syntax
szhou@bc-R01:~/works/aosp/aosp$ python --version
Python 2.7.18
szhou@bc-R01:~/works/aosp/aosp$ 

3.2 repo脚本偏旧导致的错误

• 解决办法：切换到aosp/.repo/repo目录下，执行git pull

szhou@oa-R630:~/works/aosp$ /home/szhou/Downloads/aosp/bin/repo sync -c  
Fetching: 100% (1146/1146), done in 11m43.689s
info: A new version of repo is available
repo: Updating release signing keys to keyset ver 2.3
warning: repo is not tracking a remote branch, so it will not receive updates
================================================================================
Repo command failed: RepoUnhandledExceptionError
szhou@oa-R630:~/works/aosp$ 
szhou@oa-R630:~/works/aosp/.repo/repo$ git pull

3.3 repo sync 数据错误

3.3.1 类型1：error: in sync -lc: revision refs xxx

• 解决办法：
• （1）找到事故目标： .repo/projects/device 或 .repo/projects/device /google/raviole-kernel
• （2）删除 rm -rf .repo/projects/device
• （3）更准确点：rm -rf .repo/projects/device /google/raviole-kernel
• （4）继续repo sync -c 同步代码

szhou@oa-R630:~/works/aosp$ /home/szhou/Downloads/aosp/bin/repo sync -c 
error: Cannot checkout device/google/raviole-kernel: ManifestInvalidRevisionError: revision refs/tags/android-13.0.0_r82 in device/google/raviole-kernel not found
error: in `sync -c`: revision refs/tags/android-13.0.0_r82 in device/google/raviole-kernel not found
szhou@oa-R630:~/works/aosp$ ls -al
total 24
drwxr-xr-x  6 szhou szhou 4096 12月 20 11:11 .
drwxrwxr-x  5 szhou szhou 4096 12月 20 10:53 ..
drwxrwxr-x 36 szhou szhou 4096 12月 20 11:11 art
drwxrwxr-x  4 szhou szhou 4096 12月 20 11:11 device
drwxrwxr-x  3 szhou szhou 4096 12月 20 11:11 external
drwxr-xr-x  7 szhou szhou 4096 12月 20 11:10 .repo
szhou@oa-R630:~/works/aosp$ cd .repo/
manifests/       manifests.git/   project-objects/ projects/        repo/            
szhou@oa-R630:~/works/aosp$ cd .repo/manifests.git/
branches/ hooks/    info/     logs/     objects/  refs/     
szhou@oa-R630:~/works/aosp$ cd .repo/
manifests/       manifests.git/   project-objects/ projects/        repo/            
szhou@oa-R630:~/works/aosp$ cd .repo/manifests
manifests/     manifests.git/ 
szhou@oa-R630:~/works/aosp$ cd .repo/
manifests/       manifests.git/   project-objects/ projects/        repo/            
szhou@oa-R630:~/works/aosp$ cd .repo/projects/
art.git/              build/                developers/           external/             kernel/               packages/             prebuilts/            test/                 
bionic.git/           cts.git/              development.git/      frameworks/           libcore.git/          pdk.git/              sdk.git/              toolchain/            
bootable/             dalvik.git/           device/               hardware/             libnativehelper.git/  platform_testing.git/ system/               tools/                
szhou@oa-R630:~/works/aosp$ cd .repo/projects/device
szhou@oa-R630:~/works/aosp/.repo/projects/device$ cd -
/home/szhou/works/aosp
szhou@oa-R630:~/works/aosp$ rm -rf  .repo/projects/device
szhou@oa-R630:~/works/aosp$ /home/szhou/Downloads/aosp/bin/repo sync -c  

3.3.1 类型2：Unable to fully sync the tree

• 如下，虽然同步完成了，但提示了一些错误
• 解决办法：
• （1）锁定Failing repos目标
• （2）逐个删除，例如 rm -rf device/generic/trusty device/generic/uml art ……
• （3）继续执行 repo sync -c， 直至无错误100%完成同步

Checking out: 100% (1145/1145), done in 10m12.341s
error: Unable to fully sync the tree
error: Checking out local projects failed.
Failing repos:
device/generic/trusty
device/generic/uml
device/generic/vulkan-cereal
art
device/google/pantah-sepolicy
device/google/raviole
Try re-running with "-j1 --fail-fast" to exit at the first error.
================================================================================
Repo command failed due to the following `SyncError` errors:
device/generic/trusty checkout 05e24c85c2a542498ccf2983d898fcf0e6f9edd2 
device/generic/uml checkout 60bc18c3a72bbed9640edaba4422fec18f36d6e9 
device/generic/vulkan-cereal checkout 4b79dc90f067220adcc37bc24dae8f211ebe2d17 
platform/art checkout b4ac1db327a419fb87e83c8b6f9825bc5fc126c3 
device/google/pantah-sepolicy checkout 28219f7c6376cd1a810517d770029439dde653d5 
+1 additional errors...
szhou@oa-R630:~/works/aosp$ 

四、代码同步成功

• 同步成功后，画面如下所示