update-index: do not die too early in a read-only repository.

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index 7545dd9a3e6c3cc16fd46e44830af4767978d2be..0140c8e3580c7be90648f5ea0186a5c925ee1584 100644 (file)
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -11,10 +11,10 @@ SYNOPSIS
 [verse]
 'git-grep' [--cached]
           [-a | --text] [-I] [-i | --ignore-case] [-w | --word-regexp]
-          [-v | --invert-match] [--full-name]
+          [-v | --invert-match] [-h|-H] [--full-name]
           [-E | --extended-regexp] [-G | --basic-regexp] [-F | --fixed-strings]
           [-n] [-l | --files-with-matches] [-L | --files-without-match]
-          [-c | --count]
+          [-c | --count] [--all-match]
           [-A <post-context>] [-B <pre-context>] [-C <context>]
           [-f <file>] [-e] <pattern> [--and|--or|--not|(|)|-e <pattern>...]
           [<tree>...]
@@ -47,6 +47,13 @@ OPTIONS
 -v | --invert-match::
        Select non-matching lines.
 
+-h | -H::
+       By default, the command shows the filename for each
+       match.  `-h` option is used to suppress this output.
+       `-H` is there for completeness and does not do anything
+       except it overrides `-h` given earlier on the command
+       line.
+
 --full-name::
        When run from a subdirectory, the command usually
        outputs paths relative to the current directory.  This
@@ -84,11 +91,16 @@ OPTIONS
        combined by 'or'.
 
 --and | --or | --not | ( | )::
-       Specify how multiple patterns are combined using boolean
+       Specify how multiple patterns are combined using Boolean
        expressions.  `--or` is the default operator.  `--and` has
        higher precedence than `--or`.  `-e` has to be used for all
        patterns.
 
+--all-match::
+       When giving multiple pattern expressions combined with `--or`,
+       this flag is specified to limit the match to files that
+       have lines to match all of them.
+
 `<tree>...`::
        Search blobs in the trees for specified patterns.
 
@@ -104,6 +116,10 @@ git grep -e \'#define\' --and \( -e MAX_PATH -e PATH_MAX \)::
        Looks for a line that has `#define` and either `MAX_PATH` or
        `PATH_MAX`.
 
+git grep --all-match -e NODE -e Unexpected::
+       Looks for a line that has `NODE` or `Unexpected` in
+       files that have lines that match both.
+
 Author
 ------
 Originally written by Linus Torvalds <torvalds@osdl.org>, later