X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=Documentation%2Fgit-show-ref.txt;h=ce0e643fbe684f28e30372f404dafd01e4656828;hb=175f5595511b047a320e5c6163c642ac1fc34681;hp=5973a82517f2b64e5575b891a2fcee8ad0664b8a;hpb=b4d2b04c9b6dc42c0bcf0513b9d8f731ec26db82;p=git.git

diff --git a/Documentation/git-show-ref.txt b/Documentation/git-show-ref.txt
index 5973a8251..ce0e643fb 100644
--- a/Documentation/git-show-ref.txt
+++ b/Documentation/git-show-ref.txt
@@ -10,6 +10,7 @@ SYNOPSIS
 [verse]
 'git-show-ref' [-q|--quiet] [--verify] [-h|--head] [-d|--dereference]
 	     [-s|--hash] [--abbrev] [--tags] [--heads] [--] <pattern>...
+'git-show-ref' --exclude-existing[=pattern]
 
 DESCRIPTION
 -----------
@@ -19,6 +20,9 @@ commit IDs. Results can be filtered using a pattern and tags can be
 dereferenced into object IDs. Additionally, it can be used to test whether a
 particular ref exists.
 
+The --exclude-existing form is a filter that does the inverse, it shows the
+refs from stdin that don't exist in the local repository.
+
 Use of this utility is encouraged in favor of directly accessing files under
 in the `.git` directory.
 
@@ -61,6 +65,18 @@ OPTIONS
 	Do not print any results to stdout. When combined with '--verify' this
 	can be used to silently check if a reference exists.
 
+--exclude-existing, --exclude-existing=pattern::
+
+	Make git-show-ref act as a filter that reads refs from stdin of the
+	form "^(?:<anything>\s)?<refname>(?:\^\{\})?$" and performs the
+	following actions on each:
+	(1) strip "^{}" at the end of line if any;
+	(2) ignore if pattern is provided and does not head-match refname;
+	(3) warn if refname is not a well-formed refname and skip;
+	(4) ignore if refname is a ref that exists in the local repository;
+	(5) otherwise output the line.
+
+
 <pattern>::
 
 	Show references matching one or more patterns.
@@ -114,7 +130,7 @@ When using the '--verify' flag, the command requires an exact path:
 
 will only match the exact branch called "master".
 
-If nothing matches, gitlink:git-show-ref[1] will return an error code of 1,
+If nothing matches, linkgit:git-show-ref[1] will return an error code of 1,
 and in the case of verification, it will show an error message.
 
 For scripting, you can ask it to be quiet with the "--quiet" flag, which
@@ -144,7 +160,7 @@ to get a listing of all tags together with what they dereference.
 
 SEE ALSO
 --------
-gitlink:git-ls-remote[1], gitlink:git-peek-remote[1]
+linkgit:git-ls-remote[1]
 
 AUTHORS
 -------
@@ -153,4 +169,4 @@ Man page by Jonas Fonseca <fonseca@diku.dk>.
 
 GIT
 ---
-Part of the gitlink:git[7] suite
+Part of the linkgit:git[7] suite