In my project's .hgignore, I want to exclude /static/ (i.e., the static folder at the root of the directory), but not /templates/static/. How would I configure .hgignore to allow this?
You can include syntax: regexp at the beginning of .hgignore and then use perl regex syntax to root a directory by using ^. So just ^static should do the work.
As of Mercurial 4.9, you can use syntax: rootglob to insert rooted glob patterns.
New rootglob: filename pattern for a glob that is rooted at the root of the repository. See hg help patterns and hg help hgignore for details
来源：https://stackoverflow.com/questions/9051190/hg-ignore-directory-at-root-only