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23.8.5.1 Registering a File for Version Control
You can put any file under version control by simply visiting it, and
then typing C-x v i (vc-register
).
- C-x v i
Register the visited file for version control.
To register the file, Emacs must choose which version control system
to use for it. If the file's directory already contains files
registered in a version control system, Emacs uses that system. If
there is more than one system in use for a directory, Emacs uses the
one that appears first in vc-handled-backends
(see section Customizing VC).
On the other hand, if there are no files already registered, Emacs uses
the first system from vc-handled-backends
that could register
the file (for example, you cannot register a file under CVS if its
directory is not already part of a CVS tree); with the default value
of vc-handled-backends
, this means that Emacs uses RCS in this
situation.
If locking is in use, C-x v i leaves the file unlocked and read-only. Type C-x v v if you wish to start editing it. After registering a file with CVS, you must subsequently commit the initial version by typing C-x v v. Until you do that, the version appears as ‘@@’ in the mode line.
The initial version number for a newly registered file is 1.1, by
default. You can specify a different default by setting the variable
vc-default-init-version
, or you can give C-x v i a numeric
argument; then it reads the initial version number for this particular
file using the minibuffer.
If vc-initial-comment
is non-nil
, C-x v i reads an
initial comment to describe the purpose of this source file. Reading
the initial comment works like reading a log entry (see section Features of the Log Entry Buffer).
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