add_file_to_index: skip rehashing if the cached stat already matches

diff --git a/INSTALL b/INSTALL
index e7aea60e92eba80d63e9596d8d78b9447c292bcf..79e71b6922cd82f411dbec1c77f6cf99c1b2ea34 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -31,7 +31,7 @@ Issues of note:
    interactive tools.  None of the core git stuff needs the wrapper,
    it's just a convenient shorthand and while it is documented in some
    places, you can always replace "git commit" with "git-commit"
-   instead. 
+   instead.
 
    But let's face it, most of us don't have GNU interactive tools, and
    even if we had it, we wouldn't know what it does.  I don't think it
@@ -56,9 +56,8 @@ Issues of note:
 
        - "zlib", the compression library. Git won't build without it.
 
-       - "openssl".  The git-rev-list program uses bignum support from
-         openssl, and unless you specify otherwise, you'll also get the
-         SHA1 library from here.
+       - "openssl".  Unless you specify otherwise, you'll get the SHA1
+         library from here.
 
          If you don't have openssl, you can use one of the SHA1 libraries
          that come with git (git includes the one from Mozilla, and has
@@ -73,7 +72,7 @@ Issues of note:
          management over DAV.  Similar to "curl" above, this is optional.
 
         - "wish", the Tcl/Tk windowing shell is used in gitk to show the
-          history graphically
+          history graphically, and in git-gui.
 
        - "ssh" is used to push and pull over the net
 
@@ -89,13 +88,19 @@ Issues of note:
    will include them.  Note that config.mak is not distributed;
    the name is reserved for local settings.
 
- - To build and install documentation suite, you need to have the
-   asciidoc/xmlto toolchain.  Alternatively, pre-formatted
-   documentation are available in "html" and "man" branches of the git
-   repository itself.  For example, you could:
+ - To build and install documentation suite, you need to have
+   the asciidoc/xmlto toolchain.  Because not many people are
+   inclined to install the tools, the default build target
+   ("make all") does _not_ build them.  The documentation is
+   written for AsciiDoc 7, but "make ASCIIDOC8=YesPlease doc"
+   will let you format with AsciiDoc 8.
+
+   Alternatively, pre-formatted documentation are available in
+   "html" and "man" branches of the git repository itself.  For
+   example, you could:
 
        $ mkdir manual && cd manual
-       $ git init-db
+       $ git init
        $ git fetch-pack git://git.kernel.org/pub/scm/git/git.git man html |
          while read a b
          do
@@ -111,4 +116,3 @@ Issues of note:
    would instead give you a copy of what you see at:
 
        http://www.kernel.org/pub/software/scm/git/docs/
-