Mercurial > hg
view mercurial/help/revisions.txt @ 19701:f0f8380ec516
commitablefilectx: add a class that will be used for mutable file contexts
Just like commitablectx, this will serve as a common place for code that will
be shared between workingfilectx and memfilectx.
author | Sean Farley <sean.michael.farley@gmail.com> |
---|---|
date | Thu, 15 Aug 2013 13:11:51 -0500 |
parents | 43cfe56121d3 |
children | 4edd179fefb8 |
line wrap: on
line source
Mercurial supports several ways to specify individual revisions. 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. A 40-digit hexadecimal string is treated as a unique revision identifier. A hexadecimal string less than 40 characters long is treated as a unique revision identifier and is referred to as a short-form identifier. A short-form identifier is only valid if it is the prefix of exactly one full-length identifier. Any other string is treated as a bookmark, tag, or branch name. A bookmark is a movable pointer to a revision. A tag is a permanent name associated with a revision. A branch name denotes the tipmost revision of that branch. Bookmark, tag, and branch names must not contain the ":" character. The reserved name "tip" always identifies the most recent revision. The reserved name "null" indicates the null revision. This is the revision of an empty repository, and the parent of revision 0. The reserved name "." indicates the working directory parent. If no working directory is checked out, it is equivalent to null. If an uncommitted merge is in progress, "." is the revision of the first parent.