NAME cvs - Concurrent Versions System support files
NOTE This documentation may no longer be up to date. Please consult the Cederqvist (CVS Manual) as specified in cvs(1).
DESCRIPTION cvs is a system for providing source control to hierarchical collec- tions of source directories. Commands and procedures for using cvs are described in cvs(1).
cvs manages source repositories, the directories containing master copies of the revision-controlled files, by copying particular revi- sions of the files to (and modifications back from) developers private working directories. In terms of file structure, each individual source repository is an immediate subdirectory of $CVSROOT.
The files described here are supporting files; they do not have to ex- ist for cvs to operate, but they allow you to make cvs operation more flexible.
You can use the modules file to define symbolic names for collections of source maintained with cvs. If there is no modules file, develop- ers must specify complete path names (absolute, or relative to $CVS- ROOT) for the files they wish to manage with cvs commands.
You can use the commitinfo file to define programs to execute whenev- er cvs commit is about to execute. These programs are used for pre-commit checking to verify that the modified, added, and removed files are really ready to be committed. Some uses for this check might be to turn off a portion (or all) of the source repository from a par- ticular person or group. Or, perhaps, to verify that the changed files conform to the sites standards for coding practice.
You can use the cvswrappers file to record cvs wrapper commands to be used when checking files into and out of the repository. Wrappers al- low the file or directory to be processed on the way in and out of CVS. The intended uses are many, one possible use would be to reformat a C file before the file is checked in, so all of the code in the reposito- ry looks the same.
You can use the loginfo file to define programs to execute after any commit, which writes a log entry for changes in the repository. These logging programs might be used to append the log message to a file. Or send the log message through electronic mail to a group of developers. Or, perhaps, post the log message to a particular newsgroup.
You can use the taginfo file to define programs to execute after any tagorrtag operation. These programs might be used to append a message to a file listing the new tag name and the programmer who created it, or send mail to a group of developers, or, perhaps, post a message to a particular newsgroup.
You can use the rcsinfo file to define forms for log messages.
You can use the editinfo file to define a program to execute for editing/validating cvs commit log entries. This is most useful when used with a rcsinfo forms specification, as it can verify that the proper fields of the form have been filled in by the user committing the change.
You can use the cvsignore file to specify the default list of files to ignore during update.
You can use the history file to record the cvs commands that affect the repository. The creation of this file enables history logging.
FILES modules The modules file records your definitions of names for collec- tions of source code. cvs will use these definitions if you use cvs to check in a file with the right format to $CVSROOT/CVS- ROOT/modules,v.
The modules file may contain blank lines and comments (lines beginning with #) as well as module definitions. Long lines can be continued on the next line by specifying a backslash () as the last character on the line.
A module definition is a single line of the modules file, in either of two formats. In both cases, mname represents the sym- bolic module name, and the remainder of the line is its defini- tion.
mname -a aliases... This represents the simplest way of defining a module mname. The -a flags the definition as a simple alias: cvs will treat any use of mname (as a command argument) as if the list of names aliases had been specified instead. aliases may contain either other module names or paths. When you use paths in aliases, cvs checkout creates all intermediate directories in the work- ing directory, just as if the path had been specified explicitly in the cvs arguments.
mname [ options ] dir [ files... ] [ &module... ]
In the simplest case, this form of module definition reduces to mname dir . This defines all the files in directory dir as module mname. dir is a relative path (from $CVSROOT) to a di- rectory of source in one of the source repositories. In this case, on checkout, a single directory called mname is created as a working directory; no intermediate directory levels are used by default, even if dir was a path involving several directory levels.
By explicitly specifying files in the module definition after dir, you can select particular files from directory dir. The sample definition for modules is an example of a module defined with a single file from a particular directory. Here is another example:
m4test unsupported/gnu/m4 foreach.m4 forloop.m4
With this definition, executing cvs checkout m4test will cre- ate a single working directory m4test containing the two files listed, which both come from a common directory several levels deep in the cvs source repository.
A module definition can refer to other modules by including &module in its definition. checkout creates a subdirectory for each such module, in your working directory. New in cvs 1.3; avoid this feature if sharing module definitions with older versions of cvs.
Finally, you can use one or more of the following options in module definitions:
-d name, to name the working directory something other than the module name. New in cvs 1.3; avoid this feature if sharing module definitions with older versions of cvs.
-i prog allows you to specify a program prog to run whenever files in a module are committed. prog runs with a single argu- ment, the full pathname of the affected directory in a source repository. The commitinfo , loginfo , and editinfo files provide other ways to call a program on commit.
-o prog allows you to specify a program prog to run whenever files in a module are checked out. prog runs with a single ar- gument, the module name.
-e prog allows you to specify a program prog to run whenever files in a module are exported. prog runs with a single argu- ment, the module name.
-t prog allows you to specify a program prog to run whenever files in a module are tagged. prog runs with two arguments: the module name and the symbolic tag specified to rtag.
-u prog allows you to specify a program prog to run whenever cvs update is executed from the top-level directory of the checked-out module. prog runs with a single argument, the full path to the source repository for this module.
commitinfo, loginfo, rcsinfo, editinfo These files all specify programs to call at different points in the cvs commit process. They have a common structure. Each line is a pair of fields: a regular expression, separated by whitespace from a filename or command-line template. Whenever one of the regular expression matches a directory name in the repository, the rest of the line is used. If the line begins with a # character, the entire line is considered a comment and is ignored. Whitespace between the fields is also ignored.
For loginfo , the rest of the line is a command-line template to execute. The templates can include not only a program name, but whatever list of arguments you wish. If you write %s somewhere on the argument list, cvs supplies, at that point, the list of files affected by the commit. The first entry in the list is the relative path within the source repository where the change is being made. The remaining arguments list the files that are being modified, added, or removed by this commit invo- cation.
For taginfo , the rest of the line is a command-line template to execute. The arguments passed to the command are, in order, the tagname , operation (i.e. add for tag, mov for tag -F, and del for tag -d ), repository , and any remaining are pairs of filename revision . A non-zero exit of the filter program will cause the tag to be aborted.
For commitinfo , the rest of the line is a command-line tem- plate to execute. The template can include not only a program name, but whatever list of arguments you wish. The full path to the current source repository is appended to the template, fol- lowed by the file names of any files involved in the commit (added, removed, and modified files).
For rcsinfo, the rest of the line is the full path to a file that should be loaded into the log message template.
For editinfo , the rest of the line is a command-line template to execute. The template can include not only a program name, but whatever list of arguments you wish. The full path to the current log message template file is appended to the template.
You can use one of two special strings instead of a regular ex- pression: ALL specifies a command line template that must al- ways be executed, and DEFAULT specifies a command line tem- plate to use if no regular expression is a match.
The commitinfo file contains commands to execute before any other commit activity, to allow you to check any conditions that must be satisfied before commit can proceed. The rest of the commit will execute only if all selected commands from this file exit with exit status 0.
The rcsinfo file allows you to specify log templates for the commit logging session; you can use this to provide a form to edit when filling out the commit log. The field after the regu- lar expression, in this file, contains filenames (of files con- taining the logging forms) rather than command templates.
The editinfo file allows you to execute a script before the commit starts, but after the log information is recorded. These "edit" scripts can verify information recorded in the log file. If the edit script exits with a non-zero exit status, the commit is aborted.
The loginfo file contains commands to execute at the end of a commit. The text specified as a commit log message is piped through the command; typical uses include sending mail, filing an article in a newsgroup, or appending to a central file.
cvsignore, .cvsignore The default list of files (or sh(1) file name patterns) to ig- nore during cvs update. At startup time, cvs loads the com- piled in default list of file name patterns (see cvs(1)). Then the per-repository list included in $CVSROOT/CVSROOT/cvsignore is loaded, if it exists. Then the per-user list is loaded from $HOME/.cvsignore . Finally, as cvs traverses through your di- rectories, it will load any per-directory .cvsignore files whenever it finds one. These per-directory files are only valid for exactly the directory that contains them, not for any sub- directories.
history Create this file in $CVSROOT/CVSROOT to enable history logging (see the description of cvs history).
SEE ALSO cvs(1),
COPYING Copyright © 1992 Cygnus Support, Brian Berliner, and Jeff Polk
Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.
Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the en- tire resulting derived work is distributed under the terms of a permis- sion notice identical to this one.
Permission is granted to copy and distribute translations of this manu- al into another language, under the above conditions for modified ver- sions, except that this permission notice may be included in transla- tions approved by the Free Software Foundation instead of in the origi- nal English.
12 February 1992 cvs(5)