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gitattributes: Clarify discussion of attribute macros

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In particular, make it clear that attribute macros are themselves
recorded as attributes in addition to setting other attributes.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Michael Haggerty 2011-08-03 15:41:29 +02:00 committed by Junio C Hamano
parent 3503b8d0da
commit 98e8406632
1 changed files with 8 additions and 5 deletions
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13
Documentation/gitattributes.txt
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@ -879,16 +879,19 @@ produced for, any binary file you track. You would need to specify e.g.
------------
but that may become cumbersome, when you have many attributes. Using
attribute macros, you can specify groups of attributes set or unset at
the same time. The system knows a built-in attribute macro, `binary`:
attribute macros, you can define an attribute that, when set, also
sets or unsets a number of other attributes at the same time. The
system knows a built-in attribute macro, `binary`:
------------
*.jpg binary
------------
which is equivalent to the above. Note that the attribute macros can only
be "Set" (see the above example that sets "binary" macro as if it were an
ordinary attribute --- setting it in turn unsets "text" and "diff").
Setting the "binary" attribute also unsets the "text" and "diff"
attributes as above. Note that attribute macros can only be "Set",
though setting one might have the effect of setting or unsetting other
attributes or even returning other attributes to the "Unspecified"
state.
DEFINING ATTRIBUTE MACROS