bash - 使用Bash将.gitmodules转换为可解析的格式以进行迭代

背景
我想创建一个shell函数，它接受.gitmodules并根据每个子模块的属性（例如<PATH>或<URL>或<BRANCH>）对每个模块执行某些命令。
.gitmodules的默认格式：

[submodule "PATH"]
    path = <PATH>
    url = <URL>
[submodule "PATH"]
    path = <PATH>
    url = <URL>
    branch = <BRANCH>

伪码：

def install_modules() {
    modules = new list

    fill each index of the modules list with each submodule & its properties

    iteratate over modules
       if module @ 'path' contains a specified 'branch':
          git submodule add -b 'branch' 'url' 'path'
       else:
          git submodule add 'url' 'path'
}

电流install_modules()

# currently works for grabbing the first line of the file
# doesn't work for each line after.
install_modules() {
    declare -A regex

    regex["module"]='\[submodule "(.*)"\]'
    regex["url"]='url = "(.*)"'
    regex["branch"]='branch = "(.*)"'

    # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    cat < ".gitmodules" | while read -r LINE; do
        if [[ $LINE =~ ${regex[module]} ]]; then
            PATH=${BASH_REMATCH[1]}

            echo "$PATH"
        fi
    done
}

最佳答案

.gitmodules是一个类似于.gitconfig的文件，因此您可以使用git config来读取它。例如，读取a.gitmodules中的所有值，按=分割值（key=value），按.分割键：

git config -f .gitmodules -l | awk '{split($0, a, /=/); split(a[1], b, /\./); print b[1], b[2], b[3], a[2]}'

git config -f .gitmodules -l打印类似

submodule.native/inotify_simple.path=native/inotify_simple
submodule.native/inotify_simple.url=https://github.com/chrisjbillington/inotify_simple

而awk输出将是

submodule native/inotify_simple path native/inotify_simple
submodule native/inotify_simple url https://github.com/chrisjbillington/inotify_simple