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Anonymous committed 2aa54fa

glossary: Add definitions for dangling and unreachable objects

Define "dangling" and "unreachable" objects. Modified from original
text proposed by Yasushi Shoji.

Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <junkio@cox.net>

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File Documentation/glossary.txt

 	objects is acyclic (there is no chain which begins and ends with the
 	same object).
 
+dangling object::
+	An unreachable object which is not reachable even from other
+	unreachable objects; a dangling object has no references to it
+	from any reference or object in the repository.
+
 dircache::
 	You are *waaaaay* behind.
 
 unmerged index::
 	An index which contains unmerged index entries.
 
+unreachable object::
+	An object which is not reachable from a branch, tag, or any
+	other reference.
+
 working tree::
 	The set of files and directories currently being worked on,
 	i.e. you can work in your working tree without using git at all.