git clone 子模块没下载全的问题解决

★ 1. 下载一个包含很多子模块的工程

例如:git clone --recursive https://github.com/caffe2/caffe2

如果网络不好或者其他原因导致子模块没有下载完全,这时用git pull是无法下载完全的。

注:这是在英文环境中执行的结果,英文Submodule在中文环境中翻译为“子模组”了。 

从log中可以看出,有很多子模块(为节省篇幅,完整log略,可以自行下载测试)。

$ git clone --recursive https://github.com/caffe2/caffe2
Cloning into 'caffe2'...
remote: Counting objects: 36771, done.
remote: Compressing objects: 100% (12/12), done.
remote: Total 36771 (delta 6), reused 7 (delta 5), pack-reused 36754
Receiving objects: 100% (36771/36771), 149.13 MiB | 2.76 MiB/s, done.
Resolving deltas: 100% (26926/26926), done.

 
(这里只以子模块protobuf为例,其他子模块略)
Submodule 'third_party/protobuf' (https://github.com/google/protobuf.git) registered for path 'third_party/protobuf'
(略)
Cloning into 'third_party/protobuf'...
remote: Counting objects: 47717, done.
remote: Compressing objects: 100% (49/49), done.
remote: Total 47717 (delta 23), reused 23 (delta 5), pack-reused 47657
Receiving objects: 100% (47717/47717), 40.97 MiB | 59.00 KiB/s, done.
Resolving deltas: 100% (32097/32097), done.
Checking connectivity... done.
Submodule path 'third_party/protobuf': checked out 'a428e42072765993ff674fda72863c9f1aa2d268'
(略) 

★ 2. 下载子模块

git submodule update --init --recursive1

如果你不确定子模块是否都已经下载完全了,也可以执行一遍这个命令确认一下。

★ 3. 参考 git clone --help

•git 2.7.4版本:

--recursive, --recurse-submodules
 After the clone is created, initialize all submodules within, using their default settings. This is equivalent to running git submodule
 update --init --recursive immediately after the clone is finished. This option is ignored if the cloned repository does not have a
 worktree/checkout (i.e. if any of --no-checkout/-n, --bare, or --mirror is given) 

•git 2.14.1版本:

--recurse-submodules[= 
 

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