(cvs) Wrappers

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 The cvswrappers file
 ====================
 
    Wrappers refers to a CVS feature which lets you control certain
 settings based on the name of the file which is being operated on.  The
 settings are `-k' for binary files, and `-m' for nonmergeable text
 files.
 
    The `-m' option specifies the merge methodology that should be used
 when a non-binary file is updated.  `MERGE' means the usual CVS
 behavior: try to merge the files.  `COPY' means that `cvs update' will
 refuse to merge files, as it also does for files specified as binary
 with `-kb' (but if the file is specified as binary, there is no need to
 specify `-m 'COPY'').  CVS will provide the user with the two versions
 of the files, and require the user using mechanisms outside CVS, to
 insert any necessary changes.  *WARNING*: do not use `COPY' with CVS
 1.9 or earlier-such versions of CVS will copy one version of your file
 over the other, wiping out the previous contents.  The `-m' wrapper
 option only affects behavior when merging is done on update; it does
 not affect how files are stored.  See  Binary files, for more on
 binary files.
 
    The basic format of the file `cvswrappers' is:
 
      wildcard     [option value][option value]...
      
      where option is one of
      -m           update methodology      value: MERGE or COPY
      -k           keyword expansion       value: expansion mode
      
      and value is a single-quote delimited value.
 
    For example, the following command imports a directory, treating
 files whose name ends in `.exe' as binary:
 
      cvs import -I ! -W "*.exe -k 'b'" first-dir vendortag reltag
 

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