Merge branch 'maint' into tj/imap-send-remove-unused

* maint: (18123 commits)
  documentation fix: git difftool uses diff tools, not merge tools.
  Git 1.7.7.4
  Makefile: add missing header file dependencies
  notes merge: eliminate OUTPUT macro
  mailmap: xcalloc mailmap_info
  name-rev --all: do not even attempt to describe non-commit object
  Git 1.7.7.3
  docs: Update install-doc-quick
  docs: don't mention --quiet or --exit-code in git-log(1)
  Git 1.7.7.2
  t7511: avoid use of reserved filename on Windows.
  clone: Quote user supplied path in a single quote pair
  read-cache.c: fix index memory allocation
  make the sample pre-commit hook script reject names with newlines, too
  Reindent closing bracket using tab instead of spaces
  Git 1.7.7.1
  RelNotes/1.7.7.1: setgid bit patch is about fixing "git init" via Makefile setting
  gitweb: fix regression when filtering out forks
  Almost ready for 1.7.7.1
  pack-objects: don't traverse objects unnecessarily
  ...

Conflicts:
	imap-send.c

1 files changed, 174 insertions, 0 deletions

diff --git a/t/t2200-add-update.sh b/t/t2200-add-update.sh
new file mode 100755
index 0000000000..4cdebda6a5
--- /dev/null
+++ b/t/t2200-add-update.sh
@@ -0,0 +1,174 @@
+#!/bin/sh
+
+test_description='git add -u
+
+This test creates a working tree state with three files:
+
+  top (previously committed, modified)
+  dir/sub (previously committed, modified)
+  dir/other (untracked)
+
+and issues a git add -u with path limiting on "dir" to add
+only the updates to dir/sub.
+
+Also tested are "git add -u" without limiting, and "git add -u"
+without contents changes, and other conditions'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+	echo initial >check &&
+	echo initial >top &&
+	echo initial >foo &&
+	mkdir dir1 dir2 &&
+	echo initial >dir1/sub1 &&
+	echo initial >dir1/sub2 &&
+	echo initial >dir2/sub3 &&
+	git add check dir1 dir2 top foo &&
+	test_tick &&
+	git commit -m initial &&
+
+	echo changed >check &&
+	echo changed >top &&
+	echo changed >dir2/sub3 &&
+	rm -f dir1/sub1 &&
+	echo other >dir2/other
+'
+
+test_expect_success update '
+	git add -u dir1 dir2
+'
+
+test_expect_success 'update noticed a removal' '
+	test "$(git ls-files dir1/sub1)" = ""
+'
+
+test_expect_success 'update touched correct path' '
+	test "$(git diff-files --name-status dir2/sub3)" = ""
+'
+
+test_expect_success 'update did not touch other tracked files' '
+	test "$(git diff-files --name-status check)" = "M	check" &&
+	test "$(git diff-files --name-status top)" = "M	top"
+'
+
+test_expect_success 'update did not touch untracked files' '
+	test "$(git ls-files dir2/other)" = ""
+'
+
+test_expect_success 'cache tree has not been corrupted' '
+
+	git ls-files -s |
+	sed -e "s/ 0	/	/" >expect &&
+	git ls-tree -r $(git write-tree) |
+	sed -e "s/ blob / /" >current &&
+	test_cmp expect current
+
+'
+
+test_expect_success 'update from a subdirectory' '
+	(
+		cd dir1 &&
+		echo more >sub2 &&
+		git add -u sub2
+	)
+'
+
+test_expect_success 'change gets noticed' '
+
+	test "$(git diff-files --name-status dir1)" = ""
+
+'
+
+test_expect_success SYMLINKS 'replace a file with a symlink' '
+
+	rm foo &&
+	ln -s top foo &&
+	git add -u -- foo
+
+'
+
+test_expect_success 'add everything changed' '
+
+	git add -u &&
+	test -z "$(git diff-files)"
+
+'
+
+test_expect_success 'touch and then add -u' '
+
+	touch check &&
+	git add -u &&
+	test -z "$(git diff-files)"
+
+'
+
+test_expect_success 'touch and then add explicitly' '
+
+	touch check &&
+	git add check &&
+	test -z "$(git diff-files)"
+
+'
+
+test_expect_success 'add -n -u should not add but just report' '
+
+	(
+		echo "add '\''check'\''" &&
+		echo "remove '\''top'\''"
+	) >expect &&
+	before=$(git ls-files -s check top) &&
+	echo changed >>check &&
+	rm -f top &&
+	git add -n -u >actual &&
+	after=$(git ls-files -s check top) &&
+
+	test "$before" = "$after" &&
+	test_i18ncmp expect actual
+
+'
+
+test_expect_success 'add -u resolves unmerged paths' '
+	git reset --hard &&
+	one=$(echo 1 | git hash-object -w --stdin) &&
+	two=$(echo 2 | git hash-object -w --stdin) &&
+	three=$(echo 3 | git hash-object -w --stdin) &&
+	{
+		for path in path1 path2
+		do
+			echo "100644 $one 1	$path"
+			echo "100644 $two 2	$path"
+			echo "100644 $three 3	$path"
+		done
+		echo "100644 $one 1	path3"
+		echo "100644 $one 1	path4"
+		echo "100644 $one 3	path5"
+		echo "100644 $one 3	path6"
+	} |
+	git update-index --index-info &&
+	echo 3 >path1 &&
+	echo 2 >path3 &&
+	echo 2 >path5 &&
+
+	# Explicit resolving by adding removed paths should fail
+	test_must_fail git add path4 &&
+	test_must_fail git add path6 &&
+
+	# "add -u" should notice removals no matter what stages
+	# the index entries are in.
+	git add -u &&
+	git ls-files -s path1 path2 path3 path4 path5 path6 >actual &&
+	{
+		echo "100644 $three 0	path1"
+		echo "100644 $two 0	path3"
+		echo "100644 $two 0	path5"
+	} >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success '"add -u non-existent" should fail' '
+	test_must_fail git add -u non-existent &&
+	! (git ls-files | grep "non-existent")
+'
+
+test_done