Merge branch 'ei/worktree+filter'

* ei/worktree+filter:
  filter-branch: always export GIT_DIR if it is set
  setup_git_directory: fix segfault if repository is found in cwd
  test GIT_WORK_TREE
  extend rev-parse test for --is-inside-work-tree
  Use new semantics of is_bare/inside_git_dir/inside_work_tree
  introduce GIT_WORK_TREE to specify the work tree
  test git rev-parse
  rev-parse: introduce --is-bare-repository
  rev-parse: document --is-inside-git-dir

1 files changed, 9 insertions, 2 deletions

diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 87771b832b..eea9c9cfe9 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -90,8 +90,15 @@ OPTIONS
 	Show `$GIT_DIR` if defined else show the path to the .git directory.
 
 --is-inside-git-dir::
-	Return "true" if we are in the git directory, otherwise "false".
-	Some commands require to be run in a working directory.
+	When the current working directory is below the repository
+	directory print "true", otherwise "false".
+
+--is-inside-work-tree::
+	When the current working directory is inside the work tree of the
+	repository print "true", otherwise "false".
+
+--is-bare-repository::
+	When the repository is bare print "true", otherwise "false".
 
 --short, --short=number::
 	Instead of outputting the full SHA1 values of object names try to