(cvs.info.gz) Environment variables
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Appendix D All environment variables which affect CVS
*****************************************************
This is a complete list of all environment variables that affect CVS.
'$CVSIGNORE'
A whitespace-separated list of file name patterns that CVS should
ignore. cvsignore.
'$CVSWRAPPERS'
A whitespace-separated list of file name patterns that CVS should
treat as wrappers. Wrappers.
'$CVSREAD'
If this is set, 'checkout' and 'update' will try hard to make the
files in your working directory read-only. When this is not set,
the default behavior is to permit modification of your working
files.
'$CVSUMASK'
Controls permissions of files in the repository. See File
permissions.
'$CVSROOT'
Should contain the full pathname to the root of the CVS source
repository (where the RCS files are kept). This information must
be available to CVS for most commands to execute; if '$CVSROOT' is
not set, or if you wish to override it for one invocation, you can
supply it on the command line: 'cvs -d cvsroot cvs_command...' Once
you have checked out a working directory, CVS stores the
appropriate root (in the file 'CVS/Root'), so normally you only
need to worry about this when initially checking out a working
directory.
'$CVSEDITOR'
'$EDITOR'
'$VISUAL'
Specifies the program to use for recording log messages during
commit. '$CVSEDITOR' overrides '$EDITOR', which overrides
'$VISUAL'. See Committing your changes for more or
Global options for alternative ways of specifying a log editor.
'$PATH'
If '$RCSBIN' is not set, and no path is compiled into CVS, it will
use '$PATH' to try to find all programs it uses.
'$HOME'
'$HOMEPATH'
'$HOMEDRIVE'
Used to locate the directory where the '.cvsrc' file, and other
such files, are searched. On Unix, CVS just checks for 'HOME'. On
Windows NT, the system will set 'HOMEDRIVE', for example to 'd:'
and 'HOMEPATH', for example to '\joe'. On Windows 95, you'll
probably need to set 'HOMEDRIVE' and 'HOMEPATH' yourself.
'$CVS_RSH'
Specifies the external program which CVS connects with, when
':ext:' access method is specified. Connecting via rsh.
'$CVS_SSH'
Specifies the external program which CVS connects with, when
':extssh:' access method is specified. Connecting via rsh.
'$CVS_SERVER'
Used in client-server mode when accessing a remote repository using
RSH. It specifies the name of the program to start on the server
side (and any necessary arguments) when accessing a remote
repository using the ':ext:', ':fork:', or ':server:' access
methods. The default value for ':ext:' and ':server:' is 'cvs';
the default value for ':fork:' is the name used to run the client.
Connecting via rsh
'$CVS_PASSFILE'
Used in client-server mode when accessing the 'cvs login server'.
client::
'$CVS_CLIENT_PORT'
Used in client-server mode to set the port to use when accessing
the server via Kerberos, GSSAPI, or CVS's password authentication
repositories::
'$CVS_RCMD_PORT'
Used in client-server mode. If set, specifies the port number to
be used when accessing the RCMD demon on the server side.
(Currently not used for Unix clients).
'$CVS_CLIENT_LOG'
Used for debugging only in client-server mode. If set, everything
sent to the server is logged into '$CVS_CLIENT_LOG.in' and
everything sent from the server is logged into
'$CVS_CLIENT_LOG.out'.
'$CVS_SERVER_SLEEP'
Used only for debugging the server side in client-server mode. If
set, delays the start of the server child process the specified
amount of seconds so that you can attach to it with a debugger.
'$CVS_IGNORE_REMOTE_ROOT'
For CVS 1.10 and older, setting this variable prevents CVS from
overwriting the 'CVS/Root' file when the '-d' global option is
specified. Later versions of CVS do not rewrite 'CVS/Root', so
'CVS_IGNORE_REMOTE_ROOT' has no effect.
'$COMSPEC'
Used under OS/2 only. It specifies the name of the command
interpreter and defaults to CMD.EXE.
'$TMPDIR'
'$TMP'
'$TEMP'
Directory in which temporary files are located. The CVS server
uses 'TMPDIR'. Global options, for a description of how to
specify this. Some parts of CVS will always use '/tmp' (via the
'tmpnam' function provided by the system).
On Windows NT, 'TMP' is used (via the '_tempnam' function provided
by the system).
The 'patch' program which is used by the CVS client uses 'TMPDIR',
and if it is not set, uses '/tmp' (at least with GNU patch 2.1).
Note that if your server and client are both running CVS 1.9.10 or
later, CVS will not invoke an external 'patch' program.
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