What is the purpose of closing a branch

I was wondering, what is the purpose of closing a branch. As for issue-1 branch, I had already close. But

• I still can see issue1-1 in my revision graph
• I still can swit开发者_高级运维ch to branch issue1-1, and continue to commit.

So, what is the whole point of closing a branch?

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See: https://www.mercurial-scm.org/wiki/PruningDeadBranches

It is informational so that hg branches will show that these branches are closed. And hg heads --active will not display any heads that are marked closed.

In a long run, number of branches can be considerable and can add to informational noise. This is a good way to prune some of those noise.

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This is exactly why named branches probably aren't the right choice for per-feature and per-issue branches -- you can hide them but you can't eliminate them. Consider reserving named branches for long-lived concepts like 'stable', 'experimental', etc. For per-issue and per-feature branching either anonymous branches, clone branches, or bookmarks are better solutions. They're all described wonderfully here: A Guide to Branching In Mercurial.