在非零退出後繼續使用「git submodule foreach」命令循環子模塊

Question

我有一個包含許多子模塊的項目。我要循環使用下面的命令每個子模塊：

git submodule foreach npm install

而且我希望腳本繼續遍歷即使一個子模塊返回一個錯誤（不歸零碼），每個子模塊。目前，在任何子模塊中運行此命令的非零返回碼都會導致git停止對其餘子模塊的循環。

有關如何完成此任務的任何建議？

Answer 1

只是讓你的命令總是返回0代碼如下所示：

git submodule foreach 'npm install || :' 

這是從手動拍攝：git help submodule：

foreach 
     Evaluates an arbitrary shell command in each checked out submodule. 
     The command has access to the variables $name, $path, $sha1 and 
     $toplevel: $name is the name of the relevant submodule section in 
     .gitmodules, $path is the name of the submodule directory relative 
     to the superproject, $sha1 is the commit as recorded in the 
     superproject, and $toplevel is the absolute path to the top-level 
     of the superproject. Any submodules defined in the superproject but 
     not checked out are ignored by this command. Unless given --quiet, 
     foreach prints the name of each submodule before evaluating the 
     command. If --recursive is given, submodules are traversed 
     recursively (i.e. the given shell command is evaluated in nested 
     submodules as well). A non-zero return from the command in any 
     submodule causes the processing to terminate. This can be 
     overridden by adding || : to the end of the command. 

     As an example, git submodule foreach 'echo $path `git rev-parse 
     HEAD`' will show the path and currently checked out commit for each 
     submodule. 

命令:從help :在bash：

:: : 
    Null command. 

    No effect; the command does nothing. 

    Exit Status: 
    Always succeeds. 

總是成功:)

Answer 2

你可以看到這個topic。

我不使用GIT，但如果你能找到.gitmodules文件，它可以很容易循環每個子模塊：

<command to find all of your submodules>|while read; do 
    # ... (default use $REPLY as an item) 
done 

或者：

while read; do 
    # ... 
done <<< "$(command to find all of your submodules)" 

看到這個reminder on how to read a command output with a loop in Bash 。