了解git子模块和“冻结"操作.在特定的提交哈希或版本 [英] Understanding git submodule and "freezing" it at a specific commit hash or version

问题描述

假定以下项目布局:-

mainrepo_git
    |____ .git
    |____ .gitmodules
    |____ proj            <------- directory containing the code files for mainrepo
            |____ 3rdpartysourcecode <-- directory containing upstream open source code
            |      |____ .git
            |      |____ 3rdpartyfiles
            |
            |____ mainrepofilesanddirectories  

mainrepo_git 包含我直接负责的源代码.我具有读/写访问权限，可以直接将其推入并拉到我管理的远程git存储库中.

mainrepo_git contains source code I am directly responsible for. I have read/write access and can push and pull directly to a remote git repository which I manage.

嵌套在 mainrepo_git 中的是我命名为 3rdpartysourcecode 的目录.实际上，此 3rdpartysourcecode 目录是另一个git repo(也通常称为"git子模块")，它指向由其他开发人员管理的开源第三方git仓库.我只有它的读取权限.没有写访问权限.

Nested inside mainrepo_git is a directory which I named 3rdpartysourcecode. This 3rdpartysourcecode directory is in fact another git repo (also commonly referred to as a "git submodule") which is pointing to an open source 3rd party git repository managed by other developers. I only have read access to it. No write access.

相对于在主存储库中进行的提交，有什么办法可以冻结" git子模块的特定提交哈希?

Is there any way of 'freezing' a specific commit hash of the git submodule in relation to a commit made in my main repository?

例如，如果我在mainrepo中(或还原为)提交 a12ucak ，则我的git子模块也将还原为我用来提交 a12ucak 的特定版本. em>?当我切换到提交 b349jdsak 时，我的git子模块也恢复为我绑定到 b349jdsak 的版本?

For example, if I am at (or I revert to) commit a12ucak in my mainrepo, my git submodule also gets reverted to a specific version which I tie to commit a12ucak? And when I switch to commit b349jdsak, my git submodule also gets reverted to a version which I tie to b349jdsak?

所以我的问题是:有一种方法可以在主仓库中的特定提交与git子模块中的相应提交之间创建链接?这样，当我在主git repo中检出特定的提交时，git子模块中的相应提交也将检出.

So my question is: there is a way to create a linkage between a specific commit in the main repo with a corresponding commit in the git submodule? In such a way where when I checkout that specific commit in the main git repo, the corresponding commit in the git submodule will also be checkout.

推荐答案

冻结是子模块的重点.您应该真正阅读有关它的教程.简而言之，git add 3rdpartysourcecode(重要的是不带斜杠！)后跟一个提交，将当前签出的子模块提交锁定为超级模块提交.然后，您稍后使用git submodule update签出该修订版.

Freezing is the whole point of submodules. You should really read a tutorial on it. In a nutshell, git add 3rdpartysourcecode (important no trailing slash!) followed by a commit locks the currently checked out submodule commit to the supermodule commit. Then later you use git submodule update to check out that revision.

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