count-objects: report how much disk space taken by garbage files

diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt
index b9003fed248651a7783e042c2e3668cf3ff90d0f..8181e4ed2ad815e5cdc3fe840c9bcdad33ffdd2d 100644 (file)
--- a/Documentation/githooks.txt
+++ b/Documentation/githooks.txt
@@ -3,7 +3,7 @@ githooks(5)
 
 NAME
 ----
-githooks - Hooks used by git
+githooks - Hooks used by Git
 
 SYNOPSIS
 --------
@@ -108,7 +108,7 @@ it is not suppressed by the `--no-verify` option.  A non-zero exit
 means a failure of the hook and aborts the commit.  It should not
 be used as replacement for pre-commit hook.
 
-The sample `prepare-commit-msg` hook that comes with git comments
+The sample `prepare-commit-msg` hook that comes with Git comments
 out the `Conflicts:` part of a merge's commit message.
 
 commit-msg
@@ -176,6 +176,35 @@ save and restore any form of metadata associated with the working tree
 (eg: permissions/ownership, ACLS, etc).  See contrib/hooks/setgitperms.perl
 for an example of how to do this.
 
+pre-push
+~~~~~~~~
+
+This hook is called by 'git push' and can be used to prevent a push from taking
+place.  The hook is called with two parameters which provide the name and
+location of the destination remote, if a named remote is not being used both
+values will be the same.
+
+Information about what is to be pushed is provided on the hook's standard
+input with lines of the form:
+
+  <local ref> SP <local sha1> SP <remote ref> SP <remote sha1> LF
+
+For instance, if the command +git push origin master:foreign+ were run the
+hook would receive a line like the following:
+
+  refs/heads/master 67890 refs/heads/foreign 12345
+
+although the full, 40-character SHA1s would be supplied.  If the foreign ref
+does not yet exist the `<remote SHA1>` will be 40 `0`.  If a ref is to be
+deleted, the `<local ref>` will be supplied as `(delete)` and the `<local
+SHA1>` will be 40 `0`.  If the local commit was specified by something other
+than a name which could be expanded (such as `HEAD~`, or a SHA1) it will be
+supplied as it was originally given.
+
+If this hook exits with a non-zero status, 'git push' will abort without
+pushing anything.  Information about why the push is rejected may be sent
+to the user by writing to standard error.
+
 [[pre-receive]]
 pre-receive
 ~~~~~~~~~~~
@@ -275,7 +304,7 @@ for the user.
 
 The default 'post-receive' hook is empty, but there is
 a sample script `post-receive-email` provided in the `contrib/hooks`
-directory in git distribution, which implements sending commit
+directory in Git distribution, which implements sending commit
 emails.
 
 [[post-update]]
@@ -303,7 +332,7 @@ them.
 When enabled, the default 'post-update' hook runs
 'git update-server-info' to keep the information used by dumb
 transports (e.g., HTTP) up-to-date.  If you are publishing
-a git repository that is accessible via HTTP, you should
+a Git repository that is accessible via HTTP, you should
 probably enable this hook.
 
 Both standard output and standard error output are forwarded to