read-cache: add post-index-change hook

diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt
index 7b273635de2b5bf3e3ba6ade8bcca3068a216395..cad711ce0ac060d9356e49599ffc13d130fc593c 100644 (file)
--- a/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@ -13,8 +13,6 @@ has a line that matches `<pattern>`), unless otherwise noted.
 Note that these are applied before commit
 ordering and formatting options, such as `--reverse`.
 
---
-
 -<number>::
 -n <number>::
 --max-count=<number>::
@@ -272,13 +270,13 @@ depending on a few rules:
 +
 --
 1. If the starting point is specified as `ref@{Nth}`, show the index
-format.
+   format.
 +
 2. If the starting point was specified as `ref@{now}`, show the
-timestamp format.
+   timestamp format.
 +
 3. If neither was used, but `--date` was given on the command line, show
-the timestamp in the format requested by `--date`.
+   the timestamp in the format requested by `--date`.
 +
 4. Otherwise, show the index format.
 --
@@ -308,8 +306,6 @@ ifdef::git-rev-list[]
        `<header>` text will be printed with each progress update.
 endif::git-rev-list[]
 
---
-
 History Simplification
 ~~~~~~~~~~~~~~~~~~~~~~
 
@@ -731,6 +727,16 @@ the requested refs.
 +
 The form '--filter=sparse:path=<path>' similarly uses a sparse-checkout
 specification contained in <path>.
++
+The form '--filter=tree:<depth>' omits all blobs and trees whose depth
+from the root tree is >= <depth> (minimum depth if an object is located
+at multiple depths in the commits traversed). <depth>=0 will not include
+any trees or blobs unless included explicitly in the command-line (or
+standard input when --stdin is used). <depth>=1 will include only the
+tree and blobs which are referenced directly by a commit reachable from
+<commit> or an explicitly-given object. <depth>=2 is like <depth>=1
+while also including trees and blobs one more level removed from an
+explicitly-given commit or tree.
 
 --no-filter::
        Turn off any previous `--filter=` argument.
@@ -756,7 +762,6 @@ Unexpected missing objects will raise an error.
 +
 The form '--missing=print' is like 'allow-any', but will also print a
 list of the missing objects.  Object IDs are prefixed with a ``?'' character.
-endif::git-rev-list[]
 
 --exclude-promisor-objects::
        (For internal use only.)  Prefilter object traversal at
@@ -764,6 +769,7 @@ endif::git-rev-list[]
        stronger than `--missing=allow-promisor` because it limits the
        traversal, rather than just silencing errors about missing
        objects.
+endif::git-rev-list[]
 
 --no-walk[=(sorted|unsorted)]::
        Only show the given commits, but do not traverse their ancestors.
@@ -830,6 +836,13 @@ Note that the `-local` option does not affect the seconds-since-epoch
 value (which is always measured in UTC), but does switch the accompanying
 timezone value.
 +
+`--date=human` shows the timezone if the timezone does not match the
+current time-zone, and doesn't print the whole date if that matches
+(ie skip printing year for dates that are "this year", but also skip
+the whole date itself if it's in the last few days and we can just say
+what weekday it was).  For older dates the hour and minute is also
+omitted.
++
 `--date=unix` shows the date as a Unix epoch timestamp (seconds since
 1970).  As with `--raw`, this is always in UTC and therefore `-local`
 has no effect.