描述在这里:https://yarnpkg.com/en/docs/cli/add#toc-adding-dependencies

例如:

yarn add https://github.com/novnc/noVNC.git#0613d18

对于GitHub(或类似)私有存储库:

yarn add 'ssh://git@github.com:myproject.git#<branch,tag,commit>'
npm install 'ssh://git@github.com:myproject.git#<branch,tag,commit>'

我在github存储库中使用这种简短的格式:

Yarn添加github_user/repository_name#commit_hash

对于ssh风格的url，只需在url之前添加ssh:

yarn add ssh://<whatever>@<xxx>#<branch,tag,commit>

您可以通过指定远程URL (HTTPS或SSH)将任何Git存储库(或tarball)添加为yarn的依赖项:

yarn add <git remote url> installs a package from a remote git repository.
yarn add <git remote url>#<branch/commit/tag> installs a package from a remote git repository at specific git branch, git commit or git tag.
yarn add https://my-project.org/package.tgz installs a package from a remote gzipped tarball.

下面是一些例子:

yarn add https://github.com/fancyapps/fancybox [remote url]
yarn add ssh://github.com/fancyapps/fancybox#3.0  [branch]
yarn add https://github.com/fancyapps/fancybox#5cda5b529ce3fb6c167a55d42ee5a316e921d95f [commit]

(注意:Fancybox v2.6.1在Git版本中不可用。)

为了同时支持npm和yarn，你可以使用git+url语法:

git+https://github.com/owner/package.git#commithashortagorbranch
git+ssh://github.com/owner/package.git#commithashortagorbranch

描述在这里:https://yarnpkg.com/en/docs/cli/add#toc-adding-dependencies

例如:

yarn add https://github.com/novnc/noVNC.git#0613d18