[[def_object]]object::
The unit of storage in Git. It is uniquely identified by the
<<def_SHA1,SHA-1>> of its contents. Consequently, an
- object can not be changed.
+ object cannot be changed.
[[def_object_database]]object database::
Stores a set of "objects", and an individual <<def_object,object>> is
origin/name-of-upstream-branch, which you can see using
`git branch -r`.
+[[def_overlay]]overlay::
+ Only update and add files to the working directory, but don't
+ delete them, similar to how 'cp -R' would update the contents
+ in the destination directory. This is the default mode in a
+ <<def_checkout,checkout>> when checking out files from the
+ <<def_index,index>> or a <<def_tree-ish,tree-ish>>. In
+ contrast, no-overlay mode also deletes tracked files not
+ present in the source, similar to 'rsync --delete'.
+
[[def_pack]]pack::
A set of objects which have been compressed into one file (to save space
or to transmit them efficiently).
omitted if the pattern begins with a character that does not belong to
"magic signature" symbol set and is not a colon.
+
-In the long form, the leading colon `:` is followed by a open
+In the long form, the leading colon `:` is followed by an open
parenthesis `(`, a comma-separated list of zero or more "magic words",
and a close parentheses `)`, and the remainder is the pattern to match
against the path.
- "`!ATTR`" requires that the attribute `ATTR` be
unspecified.
+
+Note that when matching against a tree object, attributes are still
+obtained from working tree, not from the given tree object.
exclude;;
After a path matches any non-exclude pathspec, it will be run