Merge commit 'b319ef7' into jc/maint-fix-test-perm

* commit 'b319ef7': (8132 commits)
  Add a small patch-mode testing library
  git-apply--interactive: Refactor patch mode code
  t8005: Nobody writes Russian in shift_jis
  Fix severe breakage in "git-apply --whitespace=fix"
  Update release notes for 1.6.4
  After renaming a section, print any trailing variable definitions
  Make section_name_match start on '[', and return the length on success
  send-email: detect cycles in alias expansion
  Show the presence of untracked files in the bash prompt.
  SunOS grep does not understand -C<n> nor -e
  Fix export_marks() error handling.
  git repack: keep commits hidden by a graft
  Add a test showing that 'git repack' throws away grafted-away parents
  git branch: clean up detached branch handling
  git branch: avoid unnecessary object lookups
  git branch: fix performance problem
  git svn: fix shallow clone when upstream revision is too new
  do_one_ref(): null_sha1 check is not about broken ref
  configure.ac: properly unset NEEDS_SSL_WITH_CRYPTO when sha1 func is missing
  janitor: useless checks before free
  ...

1 files changed, 177 insertions, 0 deletions

diff --git a/t/t1501-worktree.sh b/t/t1501-worktree.sh
new file mode 100755
index 0000000000..f6a6f839a1
--- /dev/null
+++ b/t/t1501-worktree.sh
@@ -0,0 +1,177 @@
+#!/bin/sh
+
+test_description='test separate work tree'
+. ./test-lib.sh
+
+test_rev_parse() {
+	name=$1
+	shift
+
+	test_expect_success "$name: is-bare-repository" \
+	"test '$1' = \"\$(git rev-parse --is-bare-repository)\""
+	shift
+	[ $# -eq 0 ] && return
+
+	test_expect_success "$name: is-inside-git-dir" \
+	"test '$1' = \"\$(git rev-parse --is-inside-git-dir)\""
+	shift
+	[ $# -eq 0 ] && return
+
+	test_expect_success "$name: is-inside-work-tree" \
+	"test '$1' = \"\$(git rev-parse --is-inside-work-tree)\""
+	shift
+	[ $# -eq 0 ] && return
+
+	test_expect_success "$name: prefix" \
+	"test '$1' = \"\$(git rev-parse --show-prefix)\""
+	shift
+	[ $# -eq 0 ] && return
+}
+
+EMPTY_TREE=$(git write-tree)
+mkdir -p work/sub/dir || exit 1
+mv .git repo.git || exit 1
+
+say "core.worktree = relative path"
+GIT_DIR=repo.git
+GIT_CONFIG="$(pwd)"/$GIT_DIR/config
+export GIT_DIR GIT_CONFIG
+unset GIT_WORK_TREE
+git config core.worktree ../work
+test_rev_parse 'outside'      false false false
+cd work || exit 1
+GIT_DIR=../repo.git
+GIT_CONFIG="$(pwd)"/$GIT_DIR/config
+test_rev_parse 'inside'       false false true ''
+cd sub/dir || exit 1
+GIT_DIR=../../../repo.git
+GIT_CONFIG="$(pwd)"/$GIT_DIR/config
+test_rev_parse 'subdirectory' false false true sub/dir/
+cd ../../.. || exit 1
+
+say "core.worktree = absolute path"
+GIT_DIR=$(pwd)/repo.git
+GIT_CONFIG=$GIT_DIR/config
+git config core.worktree "$(pwd)/work"
+test_rev_parse 'outside'      false false false
+cd work || exit 1
+test_rev_parse 'inside'       false false true ''
+cd sub/dir || exit 1
+test_rev_parse 'subdirectory' false false true sub/dir/
+cd ../../.. || exit 1
+
+say "GIT_WORK_TREE=relative path (override core.worktree)"
+GIT_DIR=$(pwd)/repo.git
+GIT_CONFIG=$GIT_DIR/config
+git config core.worktree non-existent
+GIT_WORK_TREE=work
+export GIT_WORK_TREE
+test_rev_parse 'outside'      false false false
+cd work || exit 1
+GIT_WORK_TREE=.
+test_rev_parse 'inside'       false false true ''
+cd sub/dir || exit 1
+GIT_WORK_TREE=../..
+test_rev_parse 'subdirectory' false false true sub/dir/
+cd ../../.. || exit 1
+
+mv work repo.git/work
+
+say "GIT_WORK_TREE=absolute path, work tree below git dir"
+GIT_DIR=$(pwd)/repo.git
+GIT_CONFIG=$GIT_DIR/config
+GIT_WORK_TREE=$(pwd)/repo.git/work
+test_rev_parse 'outside'              false false false
+cd repo.git || exit 1
+test_rev_parse 'in repo.git'              false true  false
+cd objects || exit 1
+test_rev_parse 'in repo.git/objects'      false true  false
+cd ../work || exit 1
+test_rev_parse 'in repo.git/work'         false true true ''
+cd sub/dir || exit 1
+test_rev_parse 'in repo.git/sub/dir' false true true sub/dir/
+cd ../../../.. || exit 1
+
+test_expect_success 'repo finds its work tree' '
+	(cd repo.git &&
+	 : > work/sub/dir/untracked &&
+	 test sub/dir/untracked = "$(git ls-files --others)")
+'
+
+test_expect_success 'repo finds its work tree from work tree, too' '
+	(cd repo.git/work/sub/dir &&
+	 : > tracked &&
+	 git --git-dir=../../.. add tracked &&
+	 cd ../../.. &&
+	 test sub/dir/tracked = "$(git ls-files)")
+'
+
+test_expect_success '_gently() groks relative GIT_DIR & GIT_WORK_TREE' '
+	(cd repo.git/work/sub/dir &&
+	GIT_DIR=../../.. GIT_WORK_TREE=../.. GIT_PAGER= \
+		git diff --exit-code tracked &&
+	echo changed > tracked &&
+	! GIT_DIR=../../.. GIT_WORK_TREE=../.. GIT_PAGER= \
+		git diff --exit-code tracked)
+'
+cat > diff-index-cached.expected <<\EOF
+:000000 100644 0000000000000000000000000000000000000000 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 A	sub/dir/tracked
+EOF
+cat > diff-index.expected <<\EOF
+:000000 100644 0000000000000000000000000000000000000000 0000000000000000000000000000000000000000 A	sub/dir/tracked
+EOF
+
+
+test_expect_success 'git diff-index' '
+	GIT_DIR=repo.git GIT_WORK_TREE=repo.git/work git diff-index $EMPTY_TREE > result &&
+	test_cmp diff-index.expected result &&
+	GIT_DIR=repo.git git diff-index --cached $EMPTY_TREE > result &&
+	test_cmp diff-index-cached.expected result
+'
+cat >diff-files.expected <<\EOF
+:100644 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0000000000000000000000000000000000000000 M	sub/dir/tracked
+EOF
+
+test_expect_success 'git diff-files' '
+	GIT_DIR=repo.git GIT_WORK_TREE=repo.git/work git diff-files > result &&
+	test_cmp diff-files.expected result
+'
+
+cat >diff-TREE.expected <<\EOF
+diff --git a/sub/dir/tracked b/sub/dir/tracked
+new file mode 100644
+index 0000000..5ea2ed4
+--- /dev/null
++++ b/sub/dir/tracked
+@@ -0,0 +1 @@
++changed
+EOF
+cat >diff-TREE-cached.expected <<\EOF
+diff --git a/sub/dir/tracked b/sub/dir/tracked
+new file mode 100644
+index 0000000..e69de29
+EOF
+cat >diff-FILES.expected <<\EOF
+diff --git a/sub/dir/tracked b/sub/dir/tracked
+index e69de29..5ea2ed4 100644
+--- a/sub/dir/tracked
++++ b/sub/dir/tracked
+@@ -0,0 +1 @@
++changed
+EOF
+
+test_expect_success 'git diff' '
+	GIT_DIR=repo.git GIT_WORK_TREE=repo.git/work git diff $EMPTY_TREE > result &&
+	test_cmp diff-TREE.expected result &&
+	GIT_DIR=repo.git git diff --cached $EMPTY_TREE > result &&
+	test_cmp diff-TREE-cached.expected result &&
+	GIT_DIR=repo.git GIT_WORK_TREE=repo.git/work git diff > result &&
+	test_cmp diff-FILES.expected result
+'
+
+test_expect_success 'git grep' '
+	(cd repo.git/work/sub &&
+	GIT_DIR=../.. GIT_WORK_TREE=.. git grep -l changed | grep dir/tracked)
+'
+
+test_done