Merge branch 'maint'

diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt
index 4fd04423e9342e05d34b4a72a4e1af802b8c10c8..79a1948a0bd52c778dcfccb253f9f2508b99f27e 100644 (file)
--- a/Documentation/gitignore.txt
+++ b/Documentation/gitignore.txt
@@ -38,7 +38,7 @@ precedence, the last matching pattern decides the outcome):
  * Patterns read from `$GIT_DIR/info/exclude`.
 
  * Patterns read from the file specified by the configuration
-   variable 'core.excludesfile'.
+   variable 'core.excludesFile'.
 
 Which file to place a pattern in depends on how the pattern is meant to
 be used.
@@ -56,7 +56,7 @@ be used.
  * Patterns which a user wants Git to
    ignore in all situations (e.g., backup or temporary files generated by
    the user's editor of choice) generally go into a file specified by
-   `core.excludesfile` in the user's `~/.gitconfig`. Its default value is
+   `core.excludesFile` in the user's `~/.gitconfig`. Its default value is
    $XDG_CONFIG_HOME/git/ignore. If $XDG_CONFIG_HOME is either not set or
    empty, $HOME/.config/git/ignore is used instead.
 
@@ -82,12 +82,12 @@ PATTERN FORMAT
 
  - An optional prefix "`!`" which negates the pattern; any
    matching file excluded by a previous pattern will become
-   included again. It is not possible to re-include a file if a parent
-   directory of that file is excluded. Git doesn't list excluded
-   directories for performance reasons, so any patterns on contained
-   files have no effect, no matter where they are defined.
+   included again.
    Put a backslash ("`\`") in front of the first "`!`" for patterns
    that begin with a literal "`!`", for example, "`\!important!.txt`".
+   It is possible to re-include a file if a parent directory of that
+   file is excluded if certain conditions are met. See section NOTES
+   for detail.
 
  - If the pattern ends with a slash, it is removed for the
    purpose of the following description, but it would only find
@@ -141,6 +141,21 @@ not tracked by Git remain untracked.
 To stop tracking a file that is currently tracked, use
 'git rm --cached'.
 
+To re-include files or directories when their parent directory is
+excluded, the following conditions must be met:
+
+ - The rules to exclude a directory and re-include a subset back must
+   be in the same .gitignore file.
+
+ - The directory part in the re-include rules must be literal (i.e. no
+   wildcards)
+
+ - The rules to exclude the parent directory must not end with a
+   trailing slash.
+
+ - The rules to exclude the parent directory must have at least one
+   slash.
+
 EXAMPLES
 --------