CODEWITHSUNDEEP
mercurialrevision
Paul Biggar
Paul Biggar

Reputation: 28739

Refer to a mercurial revision relative to a named revision

In git, you can do refer to revisions by something like master^^, meaning two revisions before master. Can you do the same in Mercurial in some way (or with some extension)? For example, if I want to do "the revision before tip", something like tip^.

edit: Rafa mentions hg parents which works for 1 level deep. How do I do it for arbitrary levels deep.

Upvotes: 8

Views: 2878

Answers (3)

tonfa
tonfa

Reputation: 24491

As mentionned by Niall C., when the revisions are linear, it is possible to use the negative specification to go back starting at tip (only works with linear history, obviously).

Starting with Mercurial 1.6, there is something similar to Parentrevspec, but in core to designate complex revision specification: revsets.

For example, "p1(tip)" is the first parent of "tip", etc.

Upvotes: 3

Niall C.
Niall C.

Reputation: 10918

For commands that have options to specify a revision, use -r -2 for the revision prior to the tip, -r -3 for the revision before that, etc.

From hg help revs:

A plain integer is treated as a revision number. Negative integers are treated as sequential offsets from the tip, with -1 denoting the tip, -2 denoting the revision prior to the tip, and so forth.

There is also the ParentrevspecExtension that allows you use syntax like: tip^ for the parent of tip, tip^^ for its parent, etc.

Upvotes: 11

Rafa de Castro
Rafa de Castro

Reputation: 2524

You can do "hg parents -r revision"

Upvotes: 1

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