上面有很多好的想法和脚本。我情不自禁地将它们组合成一个bash脚本，并提供帮助和错误检查：

#!/bin/bash

function help {
  printf "$1
Clones a specific directory from the master branch of a git repository.

Syntax:
  $(basename $0) [--delrepo] repoUrl sourceDirectory [targetDirectory]

If targetDirectory is not specified it will be set to sourceDirectory.
Downloads a sourceDirectory from a Git repository into targetdirectory.
If targetDirectory is not specified, a directory named after `basename sourceDirectory`
will be created under the current directory.

If --delrepo is specified then the .git subdirectory in the clone will be removed after cloning.


Example 1:
Clone the tree/master/django/conf/app_template directory from the master branch of
git@github.com:django/django.git into ./app_template:

\$ $(basename $0) git@github.com:django/django.git django/conf/app_template

\$ ls app_template/django/conf/app_template/
__init__.py-tpl  admin.py-tpl  apps.py-tpl  migrations  models.py-tpl  tests.py-tpl  views.py-tpl


Example 2:
Clone the django/conf/app_template directory from the master branch of
https://github.com/django/django/tree/master/django/conf/app_template into ~/test:

\$ $(basename $0) git@github.com:django/django.git django/conf/app_template ~/test

\$ ls test/django/conf/app_template/
__init__.py-tpl  admin.py-tpl  apps.py-tpl  migrations  models.py-tpl  tests.py-tpl  views.py-tpl

"
  exit 1
}

if [ -z "$1" ]; then help "Error: repoUrl was not specified.\n"; fi
if [ -z "$2" ]; then help "Error: sourceDirectory was not specified."; fi

if [ "$1" == --delrepo ]; then
  DEL_REPO=true
  shift
fi

REPO_URL="$1"
SOURCE_DIRECTORY="$2"
if [ "$3" ]; then
  TARGET_DIRECTORY="$3"
else
  TARGET_DIRECTORY="$(basename $2)"
fi

echo "Cloning into $TARGET_DIRECTORY"
mkdir -p "$TARGET_DIRECTORY"
cd "$TARGET_DIRECTORY"
git init
git remote add origin -f "$REPO_URL"
git config core.sparseCheckout true

echo "$SOURCE_DIRECTORY" > .git/info/sparse-checkout
git pull --depth=1 origin master

if [ "$DEL_REPO" ]; then rm -rf .git; fi

我为执行“稀疏签出”编写了.gitconfig[别名]。检查一下（没有双关语）：

在Windows上运行cmd.exe

git config --global alias.sparse-checkout "!f(){ [ $# -eq 2 ] && L=${1##*/} L=${L%.git} || L=$2; mkdir -p \"$L/.git/info\" && cd \"$L\" && git init --template= && git remote add origin \"$1\" && git config core.sparseCheckout 1; [ $# -eq 2 ] && echo \"$2\" >> .git/info/sparse-checkout || { shift 2; for i; do echo $i >> .git/info/sparse-checkout; done }; git pull --depth 1 origin master;};f"

否则：

git config --global alias.sparse-checkout '!f(){ [ $# -eq 2 ] && L=${1##*/} L=${L%.git} || L=$2; mkdir -p "$L/.git/info" && cd "$L" && git init --template= && git remote add origin "$1" && git config core.sparseCheckout 1; [ $# -eq 2 ] && echo "$2" >> .git/info/sparse-checkout || { shift 2; for i; do echo $i >> .git/info/sparse-checkout; done }; git pull --depth 1 origin master;};f'

用法：

# Makes a directory ForStackExchange with Plug checked out
git sparse-checkout https://github.com/YenForYang/ForStackExchange Plug

# To do more than 1 directory, you have to specify the local directory:
git sparse-checkout https://github.com/YenForYang/ForStackExchange ForStackExchange Plug Folder

为了方便和存储，git-config命令被“缩小”了，但这里扩展了别名：

# Note the --template= is for disabling templates.
# Feel free to remove it if you don't have issues with them (like I did)
# `mkdir` makes the .git/info directory ahead of time, as I've found it missing sometimes for some reason
f(){
    [ "$#" -eq 2 ] && L="${1##*/}" L=${L%.git} || L=$2;
    mkdir -p "$L/.git/info"
        && cd "$L"
        && git init --template=
        && git remote add origin "$1"
        && git config core.sparseCheckout 1;
    [ "$#" -eq 2 ]
        && echo "$2" >> .git/info/sparse-checkout
        || {
            shift 2;
            for i; do
                echo $i >> .git/info/sparse-checkout;
            done
        };
    git pull --depth 1 origin master;
};
f

这里有很多很棒的回复，但我想补充一点，在Windows Sever 2016上，使用目录名周围的引号对我来说是失败的。这些文件根本没有被下载。

而不是

"mydir/myfolder"

我不得不使用

mydir/myfolder

此外，如果您想简单地下载所有子目录，只需使用

git sparse-checkout set *

（扩展此答案）

克隆特定标记中的子目录

如果要克隆特定标记的特定子目录，可以执行以下步骤。

我在cxf-3.5.4标签中克隆了cxf github repo的发行版/src/main/release/samples/子目录。

注意：如果您尝试仅克隆上述回购，您将看到它非常大。下面的命令仅克隆所需的内容。

git clone --depth 1 --filter=blob:none --sparse https://github.com/apache/cxf
cd cxf/
git sparse-checkout set distribution/src/main/release/samples/
git fetch --depth 1 origin cxf-3.5.4
# This is the hash on which the tag points, however using the tag does not work.
git switch --detach 3ef4fde

克隆特定分支中的子目录

我在2.6.x-fixes分支中克隆了cxf github repo的发行版/src/main/release/samples/子目录。

git clone --depth 1 --filter=blob:none --sparse https://github.com/apache/cxf --branch 2.6.x-fixes
cd cxf/
git sparse-checkout set distribution/src/main/release/samples/

您仍然可以使用svn：

svn export https://admin@domain.example/home/admin/repos/finisht/static static --force

到“gitclone”子目录，然后到“gitpull”子目录。

（并非旨在提交和推送。）

这将克隆特定文件夹并删除所有与之无关的历史记录。

git clone --single-branch -b {branch} git@github.com:{user}/{repo}.git
git filter-branch --subdirectory-filter {path/to/folder} HEAD
git remote remove origin
git remote add origin git@github.com:{user}/{new-repo}.git
git push -u origin master