Merge branch 'maint'

* maint:
  Include a git-push example for creating a remote branch
  Cleanup unnecessary file modifications in t1400-update-ref
  Makefile: Add cache-tree.h to the headers list
  Don't allow contrib/workdir/git-new-workdir to trash existing dirs
  git-apply: do not read past the end of buffer

Documentation/git-push.txt

@@ -117,6 +117,12 @@ git push origin master:satellite/master::
 	the ref that matches `satellite/master` (most likely, it would
 	be `refs/remotes/satellite/master`) in `origin` repository with it.
 
+git push origin master:refs/heads/experimental::
+	Create the branch `experimental` in the `origin` repository
+	by copying the current `master` branch.  This form is usually
+	needed to create a new branch in the remote repository as
+	there is no `experimental` branch to match.
+
 Author
 ------
 Written by Junio C Hamano <junkio@cox.net>, later rewritten in C

Makefile

@@ -281,7 +281,7 @@ LIB_FILE=libgit.a
 XDIFF_LIB=xdiff/lib.a
 
 LIB_H = \
-	archive.h blob.h cache.h commit.h csum-file.h delta.h grep.h \
+	archive.h blob.h cache.h cache-tree.h commit.h csum-file.h delta.h grep.h \
 	diff.h object.h pack.h pkt-line.h quote.h refs.h list-objects.h sideband.h \
 	run-command.h strbuf.h tag.h tree.h git-compat-util.h revision.h \
 	tree-walk.h log-tree.h dir.h path-list.h unpack-trees.h builtin.h \

builtin-apply.c

@@ -1514,7 +1514,8 @@ static int find_offset(const char *buf, unsigned long size, const char *fragment
 	}
 
 	/* Exact line number? */
-	if (!memcmp(buf + start, fragment, fragsize))
+	if ((start + fragsize <= size) &&
+	    !memcmp(buf + start, fragment, fragsize))
 		return start;
 
 	/*

contrib/workdir/git-new-workdir

@@ -48,6 +48,12 @@ then
 		"a complete repository."
 fi
 
+# don't recreate a workdir over an existing repository
+if test -e "$new_workdir"
+then
+	die "destination directory '$new_workdir' already exists."
+fi
+
 # make sure the the links use full paths
 git_dir=$(cd "$git_dir"; pwd)
 

t/t1400-update-ref.sh

@@ -198,11 +198,9 @@ test_expect_success \
 	 GIT_AUTHOR_DATE="2005-05-26 23:41" \
 	 GIT_COMMITTER_DATE="2005-05-26 23:41" git-commit -F M -a &&
 	 h_OTHER=$(git rev-parse --verify HEAD) &&
-	 echo FIXED >F &&
 	 GIT_AUTHOR_DATE="2005-05-26 23:44" \
 	 GIT_COMMITTER_DATE="2005-05-26 23:44" git-commit --amend &&
 	 h_FIXED=$(git rev-parse --verify HEAD) &&
-	 echo TEST+FIXED >F &&
 	 echo Merged initial commit and a later commit. >M &&
 	 echo $h_TEST >.git/MERGE_HEAD &&
 	 GIT_AUTHOR_DATE="2005-05-26 23:45" \

t/t4123-apply-shrink.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+
+test_description='apply a patch that is larger than the preimage'
+
+. ./test-lib.sh
+
+cat >F  <<\EOF
+1
+2
+3
+4
+5
+6
+7
+8
+999999
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+
+EOF
+
+test_expect_success setup '
+
+	git add F &&
+	mv F G &&
+	sed -e "s/1/11/" -e "s/999999/9/" -e "s/H/HH/" <G >F &&
+	git diff >patch &&
+	sed -e "/^\$/d" <G >F &&
+	git add F
+
+'
+
+test_expect_success 'apply should fail gracefully' '
+
+	if git apply --index patch
+	then
+		echo Oops, should not have succeeded
+		false
+	else
+		status=$?
+		echo "Status was $status"
+		if test -f .git/index.lock
+		then
+			echo Oops, should not have crashed
+			false
+		fi
+	fi
+'
+
+test_done