aboutsummaryrefslogtreecommitdiff
path: root/t
diff options
context:
space:
mode:
authorJunio C Hamano <junkio@cox.net>2006-07-05 16:31:24 -0700
committerJunio C Hamano <junkio@cox.net>2006-07-05 16:31:24 -0700
commit0c926a3d9c34396636c2fea7a0cd5a4200ea298b (patch)
tree1d2c0c87f3f7fe20b20290970c04d7cc7d0a16d2 /t
parent169c2e9d1e81b3e7129248d89de160a7bb242411 (diff)
parent047fbe906b375e8a3a7564ad0e4443f62dd528a2 (diff)
downloadgit-0c926a3d9c34396636c2fea7a0cd5a4200ea298b.tar.gz
git-0c926a3d9c34396636c2fea7a0cd5a4200ea298b.tar.xz
Merge branch 'th/diff'
* th/diff: builtin-diff: turn recursive on when defaulting to --patch format. t4013: note improvements brought by the new output code. t4013: add format-patch tests. format-patch: fix diff format option implementation combine-diff.c: type sanity. t4013 test updates for new output code. Fix some more diff options changes. Fix diff-tree -s log --raw: Don't descend into subdirectories by default diff-tree: Use ---\n as a message separator Print empty line between raw, stat, summary and patch t4013: add more tests around -c and --cc whatchanged: Default to DIFF_FORMAT_RAW Don't xcalloc() struct diffstat_t Add msg_sep to diff_options DIFF_FORMAT_RAW is not default anymore Set default diff output format after parsing command line Make --raw option available for all diff commands Merge with_raw, with_stat and summary variables to output_format t4013: add tests for diff/log family output options.
Diffstat (limited to 't')
-rwxr-xr-xt/t4013-diff-various.sh238
-rw-r--r--t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master34
-rw-r--r--t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_side39
-rw-r--r--t/t4013/diff.diff-tree_--cc_--patch-with-stat_master34
-rw-r--r--t/t4013/diff.diff-tree_--cc_--stat_--summary_master6
-rw-r--r--t/t4013/diff.diff-tree_--cc_--stat_--summary_side8
-rw-r--r--t/t4013/diff.diff-tree_--cc_--stat_master6
-rw-r--r--t/t4013/diff.diff-tree_--cc_master30
-rw-r--r--t/t4013/diff.diff-tree_--patch-with-raw_initial2
-rw-r--r--t/t4013/diff.diff-tree_--patch-with-stat_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-raw_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-stat_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-raw_initial33
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-stat_initial34
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_--root_-p_initial29
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_--root_initial6
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_-p_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty=oneline_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--patch-with-raw_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--patch-with-stat_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--patch-with-stat_side43
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_--patch-with-raw_initial38
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_--patch-with-stat_initial39
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_--stat_--summary_initial15
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_--stat_initial12
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_--summary_-r_initial11
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_--summary_initial11
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_-p_initial34
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--root_initial11
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--stat_--summary_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--stat_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_--summary_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_-p_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_-p_side38
-rw-r--r--t/t4013/diff.diff-tree_--pretty_initial2
-rw-r--r--t/t4013/diff.diff-tree_--pretty_side11
-rw-r--r--t/t4013/diff.diff-tree_--root_--abbrev_initial6
-rw-r--r--t/t4013/diff.diff-tree_--root_--patch-with-raw_initial33
-rw-r--r--t/t4013/diff.diff-tree_--root_--patch-with-stat_initial34
-rw-r--r--t/t4013/diff.diff-tree_--root_-p_initial29
-rw-r--r--t/t4013/diff.diff-tree_--root_-r_--abbrev=4_initial6
-rw-r--r--t/t4013/diff.diff-tree_--root_-r_--abbrev_initial6
-rw-r--r--t/t4013/diff.diff-tree_--root_-r_initial6
-rw-r--r--t/t4013/diff.diff-tree_--root_initial6
-rw-r--r--t/t4013/diff.diff-tree_-c_--abbrev_master5
-rw-r--r--t/t4013/diff.diff-tree_-c_--stat_--summary_master6
-rw-r--r--t/t4013/diff.diff-tree_-c_--stat_--summary_side8
-rw-r--r--t/t4013/diff.diff-tree_-c_--stat_master6
-rw-r--r--t/t4013/diff.diff-tree_-c_master5
-rw-r--r--t/t4013/diff.diff-tree_-p_-m_master80
-rw-r--r--t/t4013/diff.diff-tree_-p_initial2
-rw-r--r--t/t4013/diff.diff-tree_-p_master2
-rw-r--r--t/t4013/diff.diff-tree_-r_--abbrev=4_initial2
-rw-r--r--t/t4013/diff.diff-tree_-r_--abbrev_initial2
-rw-r--r--t/t4013/diff.diff-tree_-r_initial2
-rw-r--r--t/t4013/diff.diff-tree_initial2
-rw-r--r--t/t4013/diff.diff-tree_master2
-rw-r--r--t/t4013/diff.format-patch_--attach_--stdout_initial..master165
-rw-r--r--t/t4013/diff.format-patch_--attach_--stdout_initial..master^106
-rw-r--r--t/t4013/diff.format-patch_--attach_--stdout_initial..side60
-rw-r--r--t/t4013/diff.format-patch_--stdout_initial..master120
-rw-r--r--t/t4013/diff.format-patch_--stdout_initial..master^76
-rw-r--r--t/t4013/diff.format-patch_--stdout_initial..side45
-rw-r--r--t/t4013/diff.log_--patch-with-stat_--summary_master_--_dir_72
-rw-r--r--t/t4013/diff.log_--patch-with-stat_master127
-rw-r--r--t/t4013/diff.log_--patch-with-stat_master_--_dir_72
-rw-r--r--t/t4013/diff.log_--root_--cc_--patch-with-stat_--summary_master197
-rw-r--r--t/t4013/diff.log_--root_--patch-with-stat_--summary_master165
-rw-r--r--t/t4013/diff.log_--root_--patch-with-stat_master159
-rw-r--r--t/t4013/diff.log_--root_-c_--patch-with-stat_--summary_master197
-rw-r--r--t/t4013/diff.log_--root_-p_master140
-rw-r--r--t/t4013/diff.log_--root_master32
-rw-r--r--t/t4013/diff.log_-SF_-p_master18
-rw-r--r--t/t4013/diff.log_-SF_master8
-rw-r--r--t/t4013/diff.log_-p_master113
-rw-r--r--t/t4013/diff.log_master32
-rw-r--r--t/t4013/diff.show_--patch-with-raw_side42
-rw-r--r--t/t4013/diff.show_--patch-with-stat_--summary_side44
-rw-r--r--t/t4013/diff.show_--patch-with-stat_side43
-rw-r--r--t/t4013/diff.show_--root_initial34
-rw-r--r--t/t4013/diff.show_--stat_--summary_side13
-rw-r--r--t/t4013/diff.show_--stat_side12
-rw-r--r--t/t4013/diff.show_initial7
-rw-r--r--t/t4013/diff.show_master36
-rw-r--r--t/t4013/diff.show_side38
-rw-r--r--t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_59
-rw-r--r--t/t4013/diff.whatchanged_--patch-with-stat_master114
-rw-r--r--t/t4013/diff.whatchanged_--patch-with-stat_master_--_dir_59
-rw-r--r--t/t4013/diff.whatchanged_--root_--cc_--patch-with-stat_--summary_master197
-rw-r--r--t/t4013/diff.whatchanged_--root_--patch-with-stat_--summary_master158
-rw-r--r--t/t4013/diff.whatchanged_--root_--patch-with-stat_master152
-rw-r--r--t/t4013/diff.whatchanged_--root_-c_--patch-with-stat_--summary_master197
-rw-r--r--t/t4013/diff.whatchanged_--root_-p_master133
-rw-r--r--t/t4013/diff.whatchanged_--root_master40
-rw-r--r--t/t4013/diff.whatchanged_-SF_-p_master18
-rw-r--r--t/t4013/diff.whatchanged_-SF_master9
-rw-r--r--t/t4013/diff.whatchanged_-p_master100
-rw-r--r--t/t4013/diff.whatchanged_master30
98 files changed, 4475 insertions, 0 deletions
diff --git a/t/t4013-diff-various.sh b/t/t4013-diff-various.sh
new file mode 100755
index 000000000..026832761
--- /dev/null
+++ b/t/t4013-diff-various.sh
@@ -0,0 +1,238 @@
+#!/bin/sh
+#
+# Copyright (c) 2006 Junio C Hamano
+#
+
+test_description='Various diff formatting options'
+
+. ./test-lib.sh
+
+test_expect_success setup '
+
+ GIT_AUTHOR_DATE="2006-06-26 00:00:00 +0000" &&
+ GIT_COMMITTER_DATE="2006-06-26 00:00:00 +0000" &&
+ export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
+
+ mkdir dir &&
+ for i in 1 2 3; do echo $i; done >file0 &&
+ for i in A B; do echo $i; done >dir/sub &&
+ cat file0 >file2 &&
+ git add file0 file2 dir/sub &&
+ git commit -m Initial &&
+
+ git branch initial &&
+ git branch side &&
+
+ GIT_AUTHOR_DATE="2006-06-26 00:01:00 +0000" &&
+ GIT_COMMITTER_DATE="2006-06-26 00:01:00 +0000" &&
+ export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
+
+ for i in 4 5 6; do echo $i; done >>file0 &&
+ for i in C D; do echo $i; done >>dir/sub &&
+ rm -f file2 &&
+ git update-index --remove file0 file2 dir/sub &&
+ git commit -m Second &&
+
+ GIT_AUTHOR_DATE="2006-06-26 00:02:00 +0000" &&
+ GIT_COMMITTER_DATE="2006-06-26 00:02:00 +0000" &&
+ export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
+
+ for i in A B C; do echo $i; done >file1 &&
+ git add file1 &&
+ for i in E F; do echo $i; done >>dir/sub &&
+ git update-index dir/sub &&
+ git commit -m Third &&
+
+ GIT_AUTHOR_DATE="2006-06-26 00:03:00 +0000" &&
+ GIT_COMMITTER_DATE="2006-06-26 00:03:00 +0000" &&
+ export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
+
+ git checkout side &&
+ for i in A B C; do echo $i; done >>file0 &&
+ for i in 1 2; do echo $i; done >>dir/sub &&
+ cat dir/sub >file3 &&
+ git add file3 &&
+ git update-index file0 dir/sub &&
+ git commit -m Side &&
+
+ GIT_AUTHOR_DATE="2006-06-26 00:04:00 +0000" &&
+ GIT_COMMITTER_DATE="2006-06-26 00:04:00 +0000" &&
+ export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
+
+ git checkout master &&
+ git pull -s ours . side &&
+
+ GIT_AUTHOR_DATE="2006-06-26 00:05:00 +0000" &&
+ GIT_COMMITTER_DATE="2006-06-26 00:05:00 +0000" &&
+ export GIT_AUTHOR_DATE GIT_COMMITTER_DATE &&
+
+ for i in A B C; do echo $i; done >>file0 &&
+ for i in 1 2; do echo $i; done >>dir/sub &&
+ git update-index file0 dir/sub &&
+
+ EDITOR=: VISUAL=: git commit --amend &&
+ git show-branch
+'
+
+: <<\EOF
+! [initial] Initial
+ * [master] Merge branch 'side'
+ ! [side] Side
+---
+ - [master] Merge branch 'side'
+ *+ [side] Side
+ * [master^] Second
++*+ [initial] Initial
+EOF
+
+V=`git version | sed -e 's/^git version //'`
+while read cmd
+do
+ case "$cmd" in
+ '' | '#'*) continue ;;
+ esac
+ test=`echo "$cmd" | sed -e 's|[/ ][/ ]*|_|g'`
+ cnt=`expr $test_count + 1`
+ pfx=`printf "%04d" $cnt`
+ expect="../t4013/diff.$test"
+ actual="$pfx-diff.$test"
+
+ test_expect_success "git $cmd" '
+ {
+ echo "\$ git $cmd"
+ git $cmd | sed -e "s/$V/g-i-t--v-e-r-s-i-o-n/"
+ echo "\$"
+ } >"$actual" &&
+ if test -f "$expect"
+ then
+ diff -u "$expect" "$actual" &&
+ rm -f "$actual"
+ else
+ # this is to help developing new tests.
+ cp "$actual" "$expect"
+ false
+ fi
+ '
+done <<\EOF
+diff-tree initial
+diff-tree -r initial
+diff-tree -r --abbrev initial
+diff-tree -r --abbrev=4 initial
+diff-tree --root initial
+diff-tree --root --abbrev initial
+diff-tree --root -r initial
+diff-tree --root -r --abbrev initial
+diff-tree --root -r --abbrev=4 initial
+diff-tree -p initial
+diff-tree --root -p initial
+diff-tree --patch-with-stat initial
+diff-tree --root --patch-with-stat initial
+diff-tree --patch-with-raw initial
+diff-tree --root --patch-with-raw initial
+
+diff-tree --pretty initial
+diff-tree --pretty --root initial
+diff-tree --pretty -p initial
+diff-tree --pretty --stat initial
+diff-tree --pretty --summary initial
+diff-tree --pretty --stat --summary initial
+diff-tree --pretty --root -p initial
+diff-tree --pretty --root --stat initial
+# improved by Timo's patch
+diff-tree --pretty --root --summary initial
+# improved by Timo's patch
+diff-tree --pretty --root --summary -r initial
+diff-tree --pretty --root --stat --summary initial
+diff-tree --pretty --patch-with-stat initial
+diff-tree --pretty --root --patch-with-stat initial
+diff-tree --pretty --patch-with-raw initial
+diff-tree --pretty --root --patch-with-raw initial
+
+diff-tree --pretty=oneline initial
+diff-tree --pretty=oneline --root initial
+diff-tree --pretty=oneline -p initial
+diff-tree --pretty=oneline --root -p initial
+diff-tree --pretty=oneline --patch-with-stat initial
+# improved by Timo's patch
+diff-tree --pretty=oneline --root --patch-with-stat initial
+diff-tree --pretty=oneline --patch-with-raw initial
+diff-tree --pretty=oneline --root --patch-with-raw initial
+
+diff-tree --pretty side
+diff-tree --pretty -p side
+diff-tree --pretty --patch-with-stat side
+
+diff-tree master
+diff-tree -p master
+diff-tree -p -m master
+diff-tree -c master
+diff-tree -c --abbrev master
+diff-tree --cc master
+# stat only should show the diffstat with the first parent
+diff-tree -c --stat master
+diff-tree --cc --stat master
+diff-tree -c --stat --summary master
+diff-tree --cc --stat --summary master
+# stat summary should show the diffstat and summary with the first parent
+diff-tree -c --stat --summary side
+diff-tree --cc --stat --summary side
+# improved by Timo's patch
+diff-tree --cc --patch-with-stat master
+# improved by Timo's patch
+diff-tree --cc --patch-with-stat --summary master
+# this is correct
+diff-tree --cc --patch-with-stat --summary side
+
+log master
+log -p master
+log --root master
+log --root -p master
+log --patch-with-stat master
+log --root --patch-with-stat master
+log --root --patch-with-stat --summary master
+# improved by Timo's patch
+log --root -c --patch-with-stat --summary master
+# improved by Timo's patch
+log --root --cc --patch-with-stat --summary master
+log -SF master
+log -SF -p master
+
+whatchanged master
+whatchanged -p master
+whatchanged --root master
+whatchanged --root -p master
+whatchanged --patch-with-stat master
+whatchanged --root --patch-with-stat master
+whatchanged --root --patch-with-stat --summary master
+# improved by Timo's patch
+whatchanged --root -c --patch-with-stat --summary master
+# improved by Timo's patch
+whatchanged --root --cc --patch-with-stat --summary master
+whatchanged -SF master
+whatchanged -SF -p master
+
+log --patch-with-stat master -- dir/
+whatchanged --patch-with-stat master -- dir/
+log --patch-with-stat --summary master -- dir/
+whatchanged --patch-with-stat --summary master -- dir/
+
+show initial
+show --root initial
+show side
+show master
+show --stat side
+show --stat --summary side
+show --patch-with-stat side
+show --patch-with-raw side
+show --patch-with-stat --summary side
+
+format-patch --stdout initial..side
+format-patch --stdout initial..master^
+format-patch --stdout initial..master
+format-patch --attach --stdout initial..side
+format-patch --attach --stdout initial..master^
+format-patch --attach --stdout initial..master
+
+EOF
+
+test_done
diff --git a/t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master b/t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master
new file mode 100644
index 000000000..0ac980091
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master
@@ -0,0 +1,34 @@
+$ git diff-tree --cc --patch-with-stat --summary master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --cc dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --cc file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+$
diff --git a/t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_side b/t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_side
new file mode 100644
index 000000000..a61ad8cb1
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_side
@@ -0,0 +1,39 @@
+$ git diff-tree --cc --patch-with-stat --summary side
+c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+$
diff --git a/t/t4013/diff.diff-tree_--cc_--patch-with-stat_master b/t/t4013/diff.diff-tree_--cc_--patch-with-stat_master
new file mode 100644
index 000000000..f6ecf7636
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_--patch-with-stat_master
@@ -0,0 +1,34 @@
+$ git diff-tree --cc --patch-with-stat master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --cc dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --cc file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+$
diff --git a/t/t4013/diff.diff-tree_--cc_--stat_--summary_master b/t/t4013/diff.diff-tree_--cc_--stat_--summary_master
new file mode 100644
index 000000000..712ffd2d8
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_--stat_--summary_master
@@ -0,0 +1,6 @@
+$ git diff-tree --cc --stat --summary master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+$
diff --git a/t/t4013/diff.diff-tree_--cc_--stat_--summary_side b/t/t4013/diff.diff-tree_--cc_--stat_--summary_side
new file mode 100644
index 000000000..50362be7b
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_--stat_--summary_side
@@ -0,0 +1,8 @@
+$ git diff-tree --cc --stat --summary side
+c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+$
diff --git a/t/t4013/diff.diff-tree_--cc_--stat_master b/t/t4013/diff.diff-tree_--cc_--stat_master
new file mode 100644
index 000000000..8d5bdc985
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_--stat_master
@@ -0,0 +1,6 @@
+$ git diff-tree --cc --stat master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+$
diff --git a/t/t4013/diff.diff-tree_--cc_master b/t/t4013/diff.diff-tree_--cc_master
new file mode 100644
index 000000000..e57d943bd
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--cc_master
@@ -0,0 +1,30 @@
+$ git diff-tree --cc master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+diff --cc dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --cc file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+$
diff --git a/t/t4013/diff.diff-tree_--patch-with-raw_initial b/t/t4013/diff.diff-tree_--patch-with-raw_initial
new file mode 100644
index 000000000..fc177ab3f
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--patch-with-raw_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --patch-with-raw initial
+$
diff --git a/t/t4013/diff.diff-tree_--patch-with-stat_initial b/t/t4013/diff.diff-tree_--patch-with-stat_initial
new file mode 100644
index 000000000..bd905b1c5
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--patch-with-stat_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --patch-with-stat initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-raw_initial b/t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-raw_initial
new file mode 100644
index 000000000..7bb8b45e3
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-raw_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty=oneline --patch-with-raw initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-stat_initial b/t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-stat_initial
new file mode 100644
index 000000000..cbdde4f40
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_--patch-with-stat_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty=oneline --patch-with-stat initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-raw_initial b/t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-raw_initial
new file mode 100644
index 000000000..cd79f1a0f
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-raw_initial
@@ -0,0 +1,33 @@
+$ git diff-tree --pretty=oneline --root --patch-with-raw initial
+444ac553ac7612cc88969031b02b3767fb8a353a Initial
+:000000 100644 0000000000000000000000000000000000000000 35d242ba79ae89ac695e26b3d4c27a8e6f028f9e A dir/sub
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file0
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-stat_initial b/t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-stat_initial
new file mode 100644
index 000000000..d5c333a37
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_--root_--patch-with-stat_initial
@@ -0,0 +1,34 @@
+$ git diff-tree --pretty=oneline --root --patch-with-stat initial
+444ac553ac7612cc88969031b02b3767fb8a353a Initial
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_--root_-p_initial b/t/t4013/diff.diff-tree_--pretty=oneline_--root_-p_initial
new file mode 100644
index 000000000..3c5092c69
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_--root_-p_initial
@@ -0,0 +1,29 @@
+$ git diff-tree --pretty=oneline --root -p initial
+444ac553ac7612cc88969031b02b3767fb8a353a Initial
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_--root_initial b/t/t4013/diff.diff-tree_--pretty=oneline_--root_initial
new file mode 100644
index 000000000..08920ac65
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_--root_initial
@@ -0,0 +1,6 @@
+$ git diff-tree --pretty=oneline --root initial
+444ac553ac7612cc88969031b02b3767fb8a353a Initial
+:000000 040000 0000000000000000000000000000000000000000 da7a33fa77d8066d6698643940ce5860fe2d7fb3 A dir
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file0
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file2
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_-p_initial b/t/t4013/diff.diff-tree_--pretty=oneline_-p_initial
new file mode 100644
index 000000000..94b76bfef
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_-p_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty=oneline -p initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty=oneline_initial b/t/t4013/diff.diff-tree_--pretty=oneline_initial
new file mode 100644
index 000000000..d50970d57
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty=oneline_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty=oneline initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--patch-with-raw_initial b/t/t4013/diff.diff-tree_--pretty_--patch-with-raw_initial
new file mode 100644
index 000000000..3a85316d8
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--patch-with-raw_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty --patch-with-raw initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--patch-with-stat_initial b/t/t4013/diff.diff-tree_--pretty_--patch-with-stat_initial
new file mode 100644
index 000000000..2e08239a4
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--patch-with-stat_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty --patch-with-stat initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--patch-with-stat_side b/t/t4013/diff.diff-tree_--pretty_--patch-with-stat_side
new file mode 100644
index 000000000..4d30e7edd
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--patch-with-stat_side
@@ -0,0 +1,43 @@
+$ git diff-tree --pretty --patch-with-stat side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_--patch-with-raw_initial b/t/t4013/diff.diff-tree_--pretty_--root_--patch-with-raw_initial
new file mode 100644
index 000000000..a3203bd19
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_--patch-with-raw_initial
@@ -0,0 +1,38 @@
+$ git diff-tree --pretty --root --patch-with-raw initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+:000000 100644 0000000000000000000000000000000000000000 35d242ba79ae89ac695e26b3d4c27a8e6f028f9e A dir/sub
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file0
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_--patch-with-stat_initial b/t/t4013/diff.diff-tree_--pretty_--root_--patch-with-stat_initial
new file mode 100644
index 000000000..7dfa6af3c
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_--patch-with-stat_initial
@@ -0,0 +1,39 @@
+$ git diff-tree --pretty --root --patch-with-stat initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_--stat_--summary_initial b/t/t4013/diff.diff-tree_--pretty_--root_--stat_--summary_initial
new file mode 100644
index 000000000..43bfce253
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_--stat_--summary_initial
@@ -0,0 +1,15 @@
+$ git diff-tree --pretty --root --stat --summary initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_--stat_initial b/t/t4013/diff.diff-tree_--pretty_--root_--stat_initial
new file mode 100644
index 000000000..9154aa4d4
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_--stat_initial
@@ -0,0 +1,12 @@
+$ git diff-tree --pretty --root --stat initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_--summary_-r_initial b/t/t4013/diff.diff-tree_--pretty_--root_--summary_-r_initial
new file mode 100644
index 000000000..ccdaafb37
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_--summary_-r_initial
@@ -0,0 +1,11 @@
+$ git diff-tree --pretty --root --summary -r initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_--summary_initial b/t/t4013/diff.diff-tree_--pretty_--root_--summary_initial
new file mode 100644
index 000000000..ea4820553
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_--summary_initial
@@ -0,0 +1,11 @@
+$ git diff-tree --pretty --root --summary initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+ create mode 040000 dir
+ create mode 100644 file0
+ create mode 100644 file2
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_-p_initial b/t/t4013/diff.diff-tree_--pretty_--root_-p_initial
new file mode 100644
index 000000000..d0411f64e
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_-p_initial
@@ -0,0 +1,34 @@
+$ git diff-tree --pretty --root -p initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--root_initial b/t/t4013/diff.diff-tree_--pretty_--root_initial
new file mode 100644
index 000000000..94e32eabb
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--root_initial
@@ -0,0 +1,11 @@
+$ git diff-tree --pretty --root initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+:000000 040000 0000000000000000000000000000000000000000 da7a33fa77d8066d6698643940ce5860fe2d7fb3 A dir
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file0
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file2
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--stat_--summary_initial b/t/t4013/diff.diff-tree_--pretty_--stat_--summary_initial
new file mode 100644
index 000000000..c22983ac4
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--stat_--summary_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty --stat --summary initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--stat_initial b/t/t4013/diff.diff-tree_--pretty_--stat_initial
new file mode 100644
index 000000000..8fdcfb4c0
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--stat_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty --stat initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_--summary_initial b/t/t4013/diff.diff-tree_--pretty_--summary_initial
new file mode 100644
index 000000000..9bc2c4fba
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_--summary_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty --summary initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_-p_initial b/t/t4013/diff.diff-tree_--pretty_-p_initial
new file mode 100644
index 000000000..3c9942faf
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_-p_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty -p initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_-p_side b/t/t4013/diff.diff-tree_--pretty_-p_side
new file mode 100644
index 000000000..b993aa7b8
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_-p_side
@@ -0,0 +1,38 @@
+$ git diff-tree --pretty -p side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_initial b/t/t4013/diff.diff-tree_--pretty_initial
new file mode 100644
index 000000000..14715bf7d
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_initial
@@ -0,0 +1,2 @@
+$ git diff-tree --pretty initial
+$
diff --git a/t/t4013/diff.diff-tree_--pretty_side b/t/t4013/diff.diff-tree_--pretty_side
new file mode 100644
index 000000000..e9b6e1c10
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--pretty_side
@@ -0,0 +1,11 @@
+$ git diff-tree --pretty side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+:040000 040000 da7a33fa77d8066d6698643940ce5860fe2d7fb3 f977ed46ae6873c1c30ab878e15a4accedc3618b M dir
+:100644 100644 01e79c32a8c99c557f0757da7cb6d65b3414466d f4615da674c09df322d6ba8d6b21ecfb1b1ba510 M file0
+:000000 100644 0000000000000000000000000000000000000000 7289e35bff32727c08dda207511bec138fdb9ea5 A file3
+$
diff --git a/t/t4013/diff.diff-tree_--root_--abbrev_initial b/t/t4013/diff.diff-tree_--root_--abbrev_initial
new file mode 100644
index 000000000..5aa84b2a8
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_--abbrev_initial
@@ -0,0 +1,6 @@
+$ git diff-tree --root --abbrev initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+:000000 040000 0000000... da7a33f... A dir
+:000000 100644 0000000... 01e79c3... A file0
+:000000 100644 0000000... 01e79c3... A file2
+$
diff --git a/t/t4013/diff.diff-tree_--root_--patch-with-raw_initial b/t/t4013/diff.diff-tree_--root_--patch-with-raw_initial
new file mode 100644
index 000000000..d295e475d
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_--patch-with-raw_initial
@@ -0,0 +1,33 @@
+$ git diff-tree --root --patch-with-raw initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+:000000 100644 0000000000000000000000000000000000000000 35d242ba79ae89ac695e26b3d4c27a8e6f028f9e A dir/sub
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file0
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--root_--patch-with-stat_initial b/t/t4013/diff.diff-tree_--root_--patch-with-stat_initial
new file mode 100644
index 000000000..1562b6270
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_--patch-with-stat_initial
@@ -0,0 +1,34 @@
+$ git diff-tree --root --patch-with-stat initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--root_-p_initial b/t/t4013/diff.diff-tree_--root_-p_initial
new file mode 100644
index 000000000..3219c72fc
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_-p_initial
@@ -0,0 +1,29 @@
+$ git diff-tree --root -p initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.diff-tree_--root_-r_--abbrev=4_initial b/t/t4013/diff.diff-tree_--root_-r_--abbrev=4_initial
new file mode 100644
index 000000000..0c5361688
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_-r_--abbrev=4_initial
@@ -0,0 +1,6 @@
+$ git diff-tree --root -r --abbrev=4 initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+:000000 100644 0000... 35d2... A dir/sub
+:000000 100644 0000... 01e7... A file0
+:000000 100644 0000... 01e7... A file2
+$
diff --git a/t/t4013/diff.diff-tree_--root_-r_--abbrev_initial b/t/t4013/diff.diff-tree_--root_-r_--abbrev_initial
new file mode 100644
index 000000000..c7b460faf
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_-r_--abbrev_initial
@@ -0,0 +1,6 @@
+$ git diff-tree --root -r --abbrev initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+:000000 100644 0000000... 35d242b... A dir/sub
+:000000 100644 0000000... 01e79c3... A file0
+:000000 100644 0000000... 01e79c3... A file2
+$
diff --git a/t/t4013/diff.diff-tree_--root_-r_initial b/t/t4013/diff.diff-tree_--root_-r_initial
new file mode 100644
index 000000000..eed435e17
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_-r_initial
@@ -0,0 +1,6 @@
+$ git diff-tree --root -r initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+:000000 100644 0000000000000000000000000000000000000000 35d242ba79ae89ac695e26b3d4c27a8e6f028f9e A dir/sub
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file0
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file2
+$
diff --git a/t/t4013/diff.diff-tree_--root_initial b/t/t4013/diff.diff-tree_--root_initial
new file mode 100644
index 000000000..ddf6b068a
--- /dev/null
+++ b/t/t4013/diff.diff-tree_--root_initial
@@ -0,0 +1,6 @@
+$ git diff-tree --root initial
+444ac553ac7612cc88969031b02b3767fb8a353a
+:000000 040000 0000000000000000000000000000000000000000 da7a33fa77d8066d6698643940ce5860fe2d7fb3 A dir
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file0
+:000000 100644 0000000000000000000000000000000000000000 01e79c32a8c99c557f0757da7cb6d65b3414466d A file2
+$
diff --git a/t/t4013/diff.diff-tree_-c_--abbrev_master b/t/t4013/diff.diff-tree_-c_--abbrev_master
new file mode 100644
index 000000000..39d511a7c
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-c_--abbrev_master
@@ -0,0 +1,5 @@
+$ git diff-tree -c --abbrev master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+::100644 100644 100644 cead32e... 7289e35... 992913c... MM dir/sub
+::100644 100644 100644 b414108... f4615da... 10a8a9f... MM file0
+$
diff --git a/t/t4013/diff.diff-tree_-c_--stat_--summary_master b/t/t4013/diff.diff-tree_-c_--stat_--summary_master
new file mode 100644
index 000000000..2d239feb5
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-c_--stat_--summary_master
@@ -0,0 +1,6 @@
+$ git diff-tree -c --stat --summary master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+$
diff --git a/t/t4013/diff.diff-tree_-c_--stat_--summary_side b/t/t4013/diff.diff-tree_-c_--stat_--summary_side
new file mode 100644
index 000000000..2afcca11f
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-c_--stat_--summary_side
@@ -0,0 +1,8 @@
+$ git diff-tree -c --stat --summary side
+c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+$
diff --git a/t/t4013/diff.diff-tree_-c_--stat_master b/t/t4013/diff.diff-tree_-c_--stat_master
new file mode 100644
index 000000000..226300b93
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-c_--stat_master
@@ -0,0 +1,6 @@
+$ git diff-tree -c --stat master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+$
diff --git a/t/t4013/diff.diff-tree_-c_master b/t/t4013/diff.diff-tree_-c_master
new file mode 100644
index 000000000..c258efe22
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-c_master
@@ -0,0 +1,5 @@
+$ git diff-tree -c master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+::100644 100644 100644 cead32e925b1420c84c14cbf7cf755e7e45af8ad 7289e35bff32727c08dda207511bec138fdb9ea5 992913c5aa0a5476d10c49ed0f21fc0c6d1aedf3 MM dir/sub
+::100644 100644 100644 b414108e81e5091fe0974a1858b4d0d22b107f70 f4615da674c09df322d6ba8d6b21ecfb1b1ba510 10a8a9f3657f91a156b9f0184ed79a20adef9f7f MM file0
+$
diff --git a/t/t4013/diff.diff-tree_-p_-m_master b/t/t4013/diff.diff-tree_-p_-m_master
new file mode 100644
index 000000000..1be721560
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-p_-m_master
@@ -0,0 +1,80 @@
+$ git diff-tree -p -m master
+176b998f5d647cbd77a9d8acf4531e930754d16d
+diff --git a/dir/sub b/dir/sub
+index cead32e..992913c 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -4,3 +4,5 @@ C
+ D
+ E
+ F
++1
++2
+diff --git a/file0 b/file0
+index b414108..10a8a9f 100644
+--- a/file0
++++ b/file0
+@@ -4,3 +4,6 @@
+ 4
+ 5
+ 6
++A
++B
++C
+176b998f5d647cbd77a9d8acf4531e930754d16d
+diff --git a/dir/sub b/dir/sub
+index 7289e35..992913c 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,4 +1,8 @@
+ A
+ B
++C
++D
++E
++F
+ 1
+ 2
+diff --git a/file0 b/file0
+index f4615da..10a8a9f 100644
+--- a/file0
++++ b/file0
+@@ -1,6 +1,9 @@
+ 1
+ 2
+ 3
++4
++5
++6
+ A
+ B
+ C
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+diff --git a/file3 b/file3
+deleted file mode 100644
+index 7289e35..0000000
+--- a/file3
++++ /dev/null
+@@ -1,4 +0,0 @@
+-A
+-B
+-1
+-2
+$
diff --git a/t/t4013/diff.diff-tree_-p_initial b/t/t4013/diff.diff-tree_-p_initial
new file mode 100644
index 000000000..e20ce8837
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-p_initial
@@ -0,0 +1,2 @@
+$ git diff-tree -p initial
+$
diff --git a/t/t4013/diff.diff-tree_-p_master b/t/t4013/diff.diff-tree_-p_master
new file mode 100644
index 000000000..b182875fb
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-p_master
@@ -0,0 +1,2 @@
+$ git diff-tree -p master
+$
diff --git a/t/t4013/diff.diff-tree_-r_--abbrev=4_initial b/t/t4013/diff.diff-tree_-r_--abbrev=4_initial
new file mode 100644
index 000000000..c5a3aa5aa
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-r_--abbrev=4_initial
@@ -0,0 +1,2 @@
+$ git diff-tree -r --abbrev=4 initial
+$
diff --git a/t/t4013/diff.diff-tree_-r_--abbrev_initial b/t/t4013/diff.diff-tree_-r_--abbrev_initial
new file mode 100644
index 000000000..0b689b773
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-r_--abbrev_initial
@@ -0,0 +1,2 @@
+$ git diff-tree -r --abbrev initial
+$
diff --git a/t/t4013/diff.diff-tree_-r_initial b/t/t4013/diff.diff-tree_-r_initial
new file mode 100644
index 000000000..1765d83ce
--- /dev/null
+++ b/t/t4013/diff.diff-tree_-r_initial
@@ -0,0 +1,2 @@
+$ git diff-tree -r initial
+$
diff --git a/t/t4013/diff.diff-tree_initial b/t/t4013/diff.diff-tree_initial
new file mode 100644
index 000000000..b49fc5345
--- /dev/null
+++ b/t/t4013/diff.diff-tree_initial
@@ -0,0 +1,2 @@
+$ git diff-tree initial
+$
diff --git a/t/t4013/diff.diff-tree_master b/t/t4013/diff.diff-tree_master
new file mode 100644
index 000000000..fe9226f8a
--- /dev/null
+++ b/t/t4013/diff.diff-tree_master
@@ -0,0 +1,2 @@
+$ git diff-tree master
+$
diff --git a/t/t4013/diff.format-patch_--attach_--stdout_initial..master b/t/t4013/diff.format-patch_--attach_--stdout_initial..master
new file mode 100644
index 000000000..a89bbbbcf
--- /dev/null
+++ b/t/t4013/diff.format-patch_--attach_--stdout_initial..master
@@ -0,0 +1,165 @@
+$ git format-patch --attach --stdout initial..master
+From 7952a93e09bf565b5592766a438b40cd81f4846f Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:01:00 +0000
+Subject: [PATCH] Second
+MIME-Version: 1.0
+Content-Type: multipart/mixed;
+ boundary="------------g-i-t--v-e-r-s-i-o-n"
+
+This is a multi-part message in MIME format.
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/plain; charset=UTF-8; format=fixed
+Content-Transfer-Encoding: 8bit
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/x-patch;
+ name="7952a93e09bf565b5592766a438b40cd81f4846f.diff"
+Content-Transfer-Encoding: 8bit
+Content-Disposition: inline;
+ filename="7952a93e09bf565b5592766a438b40cd81f4846f.diff"
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+--------------g-i-t--v-e-r-s-i-o-n--
+
+
+
+From 889b315013ef9f2e2f90aa0b054b267c8a557847 Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:02:00 +0000
+Subject: [PATCH] Third
+MIME-Version: 1.0
+Content-Type: multipart/mixed;
+ boundary="------------g-i-t--v-e-r-s-i-o-n"
+
+This is a multi-part message in MIME format.
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/plain; charset=UTF-8; format=fixed
+Content-Transfer-Encoding: 8bit
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/x-patch;
+ name="889b315013ef9f2e2f90aa0b054b267c8a557847.diff"
+Content-Transfer-Encoding: 8bit
+Content-Disposition: inline;
+ filename="889b315013ef9f2e2f90aa0b054b267c8a557847.diff"
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+--------------g-i-t--v-e-r-s-i-o-n--
+
+
+
+From c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:03:00 +0000
+Subject: [PATCH] Side
+MIME-Version: 1.0
+Content-Type: multipart/mixed;
+ boundary="------------g-i-t--v-e-r-s-i-o-n"
+
+This is a multi-part message in MIME format.
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/plain; charset=UTF-8; format=fixed
+Content-Transfer-Encoding: 8bit
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/x-patch;
+ name="c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a.diff"
+Content-Transfer-Encoding: 8bit
+Content-Disposition: inline;
+ filename="c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a.diff"
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+--------------g-i-t--v-e-r-s-i-o-n--
+
+
+$
diff --git a/t/t4013/diff.format-patch_--attach_--stdout_initial..master^ b/t/t4013/diff.format-patch_--attach_--stdout_initial..master^
new file mode 100644
index 000000000..4de9091a4
--- /dev/null
+++ b/t/t4013/diff.format-patch_--attach_--stdout_initial..master^
@@ -0,0 +1,106 @@
+$ git format-patch --attach --stdout initial..master^
+From 7952a93e09bf565b5592766a438b40cd81f4846f Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:01:00 +0000
+Subject: [PATCH] Second
+MIME-Version: 1.0
+Content-Type: multipart/mixed;
+ boundary="------------g-i-t--v-e-r-s-i-o-n"
+
+This is a multi-part message in MIME format.
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/plain; charset=UTF-8; format=fixed
+Content-Transfer-Encoding: 8bit
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/x-patch;
+ name="7952a93e09bf565b5592766a438b40cd81f4846f.diff"
+Content-Transfer-Encoding: 8bit
+Content-Disposition: inline;
+ filename="7952a93e09bf565b5592766a438b40cd81f4846f.diff"
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+--------------g-i-t--v-e-r-s-i-o-n--
+
+
+
+From 889b315013ef9f2e2f90aa0b054b267c8a557847 Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:02:00 +0000
+Subject: [PATCH] Third
+MIME-Version: 1.0
+Content-Type: multipart/mixed;
+ boundary="------------g-i-t--v-e-r-s-i-o-n"
+
+This is a multi-part message in MIME format.
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/plain; charset=UTF-8; format=fixed
+Content-Transfer-Encoding: 8bit
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/x-patch;
+ name="889b315013ef9f2e2f90aa0b054b267c8a557847.diff"
+Content-Transfer-Encoding: 8bit
+Content-Disposition: inline;
+ filename="889b315013ef9f2e2f90aa0b054b267c8a557847.diff"
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+--------------g-i-t--v-e-r-s-i-o-n--
+
+
+$
diff --git a/t/t4013/diff.format-patch_--attach_--stdout_initial..side b/t/t4013/diff.format-patch_--attach_--stdout_initial..side
new file mode 100644
index 000000000..3769fa6da
--- /dev/null
+++ b/t/t4013/diff.format-patch_--attach_--stdout_initial..side
@@ -0,0 +1,60 @@
+$ git format-patch --attach --stdout initial..side
+From c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:03:00 +0000
+Subject: [PATCH] Side
+MIME-Version: 1.0
+Content-Type: multipart/mixed;
+ boundary="------------g-i-t--v-e-r-s-i-o-n"
+
+This is a multi-part message in MIME format.
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/plain; charset=UTF-8; format=fixed
+Content-Transfer-Encoding: 8bit
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+--------------g-i-t--v-e-r-s-i-o-n
+Content-Type: text/x-patch;
+ name="c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a.diff"
+Content-Transfer-Encoding: 8bit
+Content-Disposition: inline;
+ filename="c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a.diff"
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+--------------g-i-t--v-e-r-s-i-o-n--
+
+
+$
diff --git a/t/t4013/diff.format-patch_--stdout_initial..master b/t/t4013/diff.format-patch_--stdout_initial..master
new file mode 100644
index 000000000..b7b4e7ca9
--- /dev/null
+++ b/t/t4013/diff.format-patch_--stdout_initial..master
@@ -0,0 +1,120 @@
+$ git format-patch --stdout initial..master
+From 7952a93e09bf565b5592766a438b40cd81f4846f Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:01:00 +0000
+Subject: [PATCH] Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+--
+g-i-t--v-e-r-s-i-o-n
+
+
+From 889b315013ef9f2e2f90aa0b054b267c8a557847 Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:02:00 +0000
+Subject: [PATCH] Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+--
+g-i-t--v-e-r-s-i-o-n
+
+
+From c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:03:00 +0000
+Subject: [PATCH] Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+--
+g-i-t--v-e-r-s-i-o-n
+
+$
diff --git a/t/t4013/diff.format-patch_--stdout_initial..master^ b/t/t4013/diff.format-patch_--stdout_initial..master^
new file mode 100644
index 000000000..e56dd98df
--- /dev/null
+++ b/t/t4013/diff.format-patch_--stdout_initial..master^
@@ -0,0 +1,76 @@
+$ git format-patch --stdout initial..master^
+From 7952a93e09bf565b5592766a438b40cd81f4846f Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:01:00 +0000
+Subject: [PATCH] Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+--
+g-i-t--v-e-r-s-i-o-n
+
+
+From 889b315013ef9f2e2f90aa0b054b267c8a557847 Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:02:00 +0000
+Subject: [PATCH] Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+--
+g-i-t--v-e-r-s-i-o-n
+
+$
diff --git a/t/t4013/diff.format-patch_--stdout_initial..side b/t/t4013/diff.format-patch_--stdout_initial..side
new file mode 100644
index 000000000..e7ddbf481
--- /dev/null
+++ b/t/t4013/diff.format-patch_--stdout_initial..side
@@ -0,0 +1,45 @@
+$ git format-patch --stdout initial..side
+From c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Mon, 26 Jun 2006 00:03:00 +0000
+Subject: [PATCH] Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+--
+g-i-t--v-e-r-s-i-o-n
+
+$
diff --git a/t/t4013/diff.log_--patch-with-stat_--summary_master_--_dir_ b/t/t4013/diff.log_--patch-with-stat_--summary_master_--_dir_
new file mode 100644
index 000000000..cc5537697
--- /dev/null
+++ b/t/t4013/diff.log_--patch-with-stat_--summary_master_--_dir_
@@ -0,0 +1,72 @@
+$ git log --patch-with-stat --summary master -- dir/
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+$
diff --git a/t/t4013/diff.log_--patch-with-stat_master b/t/t4013/diff.log_--patch-with-stat_master
new file mode 100644
index 000000000..b97969dc9
--- /dev/null
+++ b/t/t4013/diff.log_--patch-with-stat_master
@@ -0,0 +1,127 @@
+$ git log --patch-with-stat master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+$
diff --git a/t/t4013/diff.log_--patch-with-stat_master_--_dir_ b/t/t4013/diff.log_--patch-with-stat_master_--_dir_
new file mode 100644
index 000000000..71a6d0f85
--- /dev/null
+++ b/t/t4013/diff.log_--patch-with-stat_master_--_dir_
@@ -0,0 +1,72 @@
+$ git log --patch-with-stat master -- dir/
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+$
diff --git a/t/t4013/diff.log_--root_--cc_--patch-with-stat_--summary_master b/t/t4013/diff.log_--root_--cc_--patch-with-stat_--summary_master
new file mode 100644
index 000000000..b652c6a82
--- /dev/null
+++ b/t/t4013/diff.log_--root_--cc_--patch-with-stat_--summary_master
@@ -0,0 +1,197 @@
+$ git log --root --cc --patch-with-stat --summary master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --cc dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --cc file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+ create mode 100644 file1
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+ delete mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.log_--root_--patch-with-stat_--summary_master b/t/t4013/diff.log_--root_--patch-with-stat_--summary_master
new file mode 100644
index 000000000..b24a50475
--- /dev/null
+++ b/t/t4013/diff.log_--root_--patch-with-stat_--summary_master
@@ -0,0 +1,165 @@
+$ git log --root --patch-with-stat --summary master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+ create mode 100644 file1
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+ delete mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.log_--root_--patch-with-stat_master b/t/t4013/diff.log_--root_--patch-with-stat_master
new file mode 100644
index 000000000..1e9bdc4c1
--- /dev/null
+++ b/t/t4013/diff.log_--root_--patch-with-stat_master
@@ -0,0 +1,159 @@
+$ git log --root --patch-with-stat master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.log_--root_-c_--patch-with-stat_--summary_master b/t/t4013/diff.log_--root_-c_--patch-with-stat_--summary_master
new file mode 100644
index 000000000..3a155d288
--- /dev/null
+++ b/t/t4013/diff.log_--root_-c_--patch-with-stat_--summary_master
@@ -0,0 +1,197 @@
+$ git log --root -c --patch-with-stat --summary master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --combined dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --combined file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+ create mode 100644 file1
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+ delete mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.log_--root_-p_master b/t/t4013/diff.log_--root_-p_master
new file mode 100644
index 000000000..2296986ad
--- /dev/null
+++ b/t/t4013/diff.log_--root_-p_master
@@ -0,0 +1,140 @@
+$ git log --root -p master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.log_--root_master b/t/t4013/diff.log_--root_master
new file mode 100644
index 000000000..7554a468d
--- /dev/null
+++ b/t/t4013/diff.log_--root_master
@@ -0,0 +1,32 @@
+$ git log --root master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+$
diff --git a/t/t4013/diff.log_-SF_-p_master b/t/t4013/diff.log_-SF_-p_master
new file mode 100644
index 000000000..db2264c6e
--- /dev/null
+++ b/t/t4013/diff.log_-SF_-p_master
@@ -0,0 +1,18 @@
+$ git log -SF -p master
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+$
diff --git a/t/t4013/diff.log_-SF_master b/t/t4013/diff.log_-SF_master
new file mode 100644
index 000000000..f307b4d2a
--- /dev/null
+++ b/t/t4013/diff.log_-SF_master
@@ -0,0 +1,8 @@
+$ git log -SF master
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+$
diff --git a/t/t4013/diff.log_-p_master b/t/t4013/diff.log_-p_master
new file mode 100644
index 000000000..e82a72f6f
--- /dev/null
+++ b/t/t4013/diff.log_-p_master
@@ -0,0 +1,113 @@
+$ git log -p master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+$
diff --git a/t/t4013/diff.log_master b/t/t4013/diff.log_master
new file mode 100644
index 000000000..7b86ed1f5
--- /dev/null
+++ b/t/t4013/diff.log_master
@@ -0,0 +1,32 @@
+$ git log master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+$
diff --git a/t/t4013/diff.show_--patch-with-raw_side b/t/t4013/diff.show_--patch-with-raw_side
new file mode 100644
index 000000000..221b46a7c
--- /dev/null
+++ b/t/t4013/diff.show_--patch-with-raw_side
@@ -0,0 +1,42 @@
+$ git show --patch-with-raw side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+:100644 100644 35d242b... 7289e35... M dir/sub
+:100644 100644 01e79c3... f4615da... M file0
+:000000 100644 0000000... 7289e35... A file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+$
diff --git a/t/t4013/diff.show_--patch-with-stat_--summary_side b/t/t4013/diff.show_--patch-with-stat_--summary_side
new file mode 100644
index 000000000..377f2b7b7
--- /dev/null
+++ b/t/t4013/diff.show_--patch-with-stat_--summary_side
@@ -0,0 +1,44 @@
+$ git show --patch-with-stat --summary side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+$
diff --git a/t/t4013/diff.show_--patch-with-stat_side b/t/t4013/diff.show_--patch-with-stat_side
new file mode 100644
index 000000000..fb14c530d
--- /dev/null
+++ b/t/t4013/diff.show_--patch-with-stat_side
@@ -0,0 +1,43 @@
+$ git show --patch-with-stat side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+$
diff --git a/t/t4013/diff.show_--root_initial b/t/t4013/diff.show_--root_initial
new file mode 100644
index 000000000..8c89136c4
--- /dev/null
+++ b/t/t4013/diff.show_--root_initial
@@ -0,0 +1,34 @@
+$ git show --root initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.show_--stat_--summary_side b/t/t4013/diff.show_--stat_--summary_side
new file mode 100644
index 000000000..5bd597762
--- /dev/null
+++ b/t/t4013/diff.show_--stat_--summary_side
@@ -0,0 +1,13 @@
+$ git show --stat --summary side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+$
diff --git a/t/t4013/diff.show_--stat_side b/t/t4013/diff.show_--stat_side
new file mode 100644
index 000000000..3b22327e4
--- /dev/null
+++ b/t/t4013/diff.show_--stat_side
@@ -0,0 +1,12 @@
+$ git show --stat side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+$
diff --git a/t/t4013/diff.show_initial b/t/t4013/diff.show_initial
new file mode 100644
index 000000000..4c4066ae4
--- /dev/null
+++ b/t/t4013/diff.show_initial
@@ -0,0 +1,7 @@
+$ git show initial
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+$
diff --git a/t/t4013/diff.show_master b/t/t4013/diff.show_master
new file mode 100644
index 000000000..3772a87e1
--- /dev/null
+++ b/t/t4013/diff.show_master
@@ -0,0 +1,36 @@
+$ git show master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+diff --cc dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --cc file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+$
diff --git a/t/t4013/diff.show_side b/t/t4013/diff.show_side
new file mode 100644
index 000000000..530a073b1
--- /dev/null
+++ b/t/t4013/diff.show_side
@@ -0,0 +1,38 @@
+$ git show side
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+$
diff --git a/t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_ b/t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_
new file mode 100644
index 000000000..054513f31
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--patch-with-stat_--summary_master_--_dir_
@@ -0,0 +1,59 @@
+$ git whatchanged --patch-with-stat --summary master -- dir/
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+$
diff --git a/t/t4013/diff.whatchanged_--patch-with-stat_master b/t/t4013/diff.whatchanged_--patch-with-stat_master
new file mode 100644
index 000000000..a89b573f4
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--patch-with-stat_master
@@ -0,0 +1,114 @@
+$ git whatchanged --patch-with-stat master
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+$
diff --git a/t/t4013/diff.whatchanged_--patch-with-stat_master_--_dir_ b/t/t4013/diff.whatchanged_--patch-with-stat_master_--_dir_
new file mode 100644
index 000000000..b6d975216
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--patch-with-stat_master_--_dir_
@@ -0,0 +1,59 @@
+$ git whatchanged --patch-with-stat master -- dir/
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+$
diff --git a/t/t4013/diff.whatchanged_--root_--cc_--patch-with-stat_--summary_master b/t/t4013/diff.whatchanged_--root_--cc_--patch-with-stat_--summary_master
new file mode 100644
index 000000000..e9e17cdaf
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--root_--cc_--patch-with-stat_--summary_master
@@ -0,0 +1,197 @@
+$ git whatchanged --root --cc --patch-with-stat --summary master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --cc dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --cc file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+ create mode 100644 file1
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+ delete mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.whatchanged_--root_--patch-with-stat_--summary_master b/t/t4013/diff.whatchanged_--root_--patch-with-stat_--summary_master
new file mode 100644
index 000000000..f707bfa3a
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--root_--patch-with-stat_--summary_master
@@ -0,0 +1,158 @@
+$ git whatchanged --root --patch-with-stat --summary master
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+ create mode 100644 file1
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+ delete mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.whatchanged_--root_--patch-with-stat_master b/t/t4013/diff.whatchanged_--root_--patch-with-stat_master
new file mode 100644
index 000000000..61aca4171
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--root_--patch-with-stat_master
@@ -0,0 +1,152 @@
+$ git whatchanged --root --patch-with-stat master
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.whatchanged_--root_-c_--patch-with-stat_--summary_master b/t/t4013/diff.whatchanged_--root_-c_--patch-with-stat_--summary_master
new file mode 100644
index 000000000..596765e80
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--root_-c_--patch-with-stat_--summary_master
@@ -0,0 +1,197 @@
+$ git whatchanged --root -c --patch-with-stat --summary master
+commit 176b998f5d647cbd77a9d8acf4531e930754d16d
+Merge: 889b315... c7a2ab9...
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:04:00 2006 +0000
+
+ Merge branch 'side'
+
+ dir/sub | 2 ++
+ file0 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+
+diff --combined dir/sub
+index cead32e,7289e35..992913c
+--- a/dir/sub
++++ b/dir/sub
+@@@ -1,6 -1,4 +1,8 @@@
+ A
+ B
+ +C
+ +D
+ +E
+ +F
++ 1
++ 2
+diff --combined file0
+index b414108,f4615da..10a8a9f
+--- a/file0
++++ b/file0
+@@@ -1,6 -1,6 +1,9 @@@
+ 1
+ 2
+ 3
+ +4
+ +5
+ +6
++ A
++ B
++ C
+
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file3 | 4 ++++
+ 3 files changed, 9 insertions(+), 0 deletions(-)
+ create mode 100644 file3
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+---
+ dir/sub | 2 ++
+ file1 | 3 +++
+ 2 files changed, 5 insertions(+), 0 deletions(-)
+ create mode 100644 file1
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 ---
+ 3 files changed, 5 insertions(+), 3 deletions(-)
+ delete mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+---
+ dir/sub | 2 ++
+ file0 | 3 +++
+ file2 | 3 +++
+ 3 files changed, 8 insertions(+), 0 deletions(-)
+ create mode 100644 dir/sub
+ create mode 100644 file0
+ create mode 100644 file2
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.whatchanged_--root_-p_master b/t/t4013/diff.whatchanged_--root_-p_master
new file mode 100644
index 000000000..b4cd05e57
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--root_-p_master
@@ -0,0 +1,133 @@
+$ git whatchanged --root -p master
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+diff --git a/dir/sub b/dir/sub
+new file mode 100644
+index 0000000..35d242b
+--- /dev/null
++++ b/dir/sub
+@@ -0,0 +1,2 @@
++A
++B
+diff --git a/file0 b/file0
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file0
+@@ -0,0 +1,3 @@
++1
++2
++3
+diff --git a/file2 b/file2
+new file mode 100644
+index 0000000..01e79c3
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++1
++2
++3
+$
diff --git a/t/t4013/diff.whatchanged_--root_master b/t/t4013/diff.whatchanged_--root_master
new file mode 100644
index 000000000..011a22178
--- /dev/null
+++ b/t/t4013/diff.whatchanged_--root_master
@@ -0,0 +1,40 @@
+$ git whatchanged --root master
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+:100644 100644 35d242b... 7289e35... M dir/sub
+:100644 100644 01e79c3... f4615da... M file0
+:000000 100644 0000000... 7289e35... A file3
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+:100644 100644 8422d40... cead32e... M dir/sub
+:000000 100644 0000000... b1e6722... A file1
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+:100644 100644 35d242b... 8422d40... M dir/sub
+:100644 100644 01e79c3... b414108... M file0
+:100644 000000 01e79c3... 0000000... D file2
+
+commit 444ac553ac7612cc88969031b02b3767fb8a353a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:00:00 2006 +0000
+
+ Initial
+
+:000000 100644 0000000... 35d242b... A dir/sub
+:000000 100644 0000000... 01e79c3... A file0
+:000000 100644 0000000... 01e79c3... A file2
+$
diff --git a/t/t4013/diff.whatchanged_-SF_-p_master b/t/t4013/diff.whatchanged_-SF_-p_master
new file mode 100644
index 000000000..6a76f4e60
--- /dev/null
+++ b/t/t4013/diff.whatchanged_-SF_-p_master
@@ -0,0 +1,18 @@
+$ git whatchanged -SF -p master
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+$
diff --git a/t/t4013/diff.whatchanged_-SF_master b/t/t4013/diff.whatchanged_-SF_master
new file mode 100644
index 000000000..a4fe6f8a3
--- /dev/null
+++ b/t/t4013/diff.whatchanged_-SF_master
@@ -0,0 +1,9 @@
+$ git whatchanged -SF master
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+:100644 100644 8422d40... cead32e... M dir/sub
+$
diff --git a/t/t4013/diff.whatchanged_-p_master b/t/t4013/diff.whatchanged_-p_master
new file mode 100644
index 000000000..f9a445672
--- /dev/null
+++ b/t/t4013/diff.whatchanged_-p_master
@@ -0,0 +1,100 @@
+$ git whatchanged -p master
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..7289e35 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++1
++2
+diff --git a/file0 b/file0
+index 01e79c3..f4615da 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++A
++B
++C
+diff --git a/file3 b/file3
+new file mode 100644
+index 0000000..7289e35
+--- /dev/null
++++ b/file3
+@@ -0,0 +1,4 @@
++A
++B
++1
++2
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+diff --git a/dir/sub b/dir/sub
+index 8422d40..cead32e 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -2,3 +2,5 @@ A
+ B
+ C
+ D
++E
++F
+diff --git a/file1 b/file1
+new file mode 100644
+index 0000000..b1e6722
+--- /dev/null
++++ b/file1
+@@ -0,0 +1,3 @@
++A
++B
++C
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+diff --git a/dir/sub b/dir/sub
+index 35d242b..8422d40 100644
+--- a/dir/sub
++++ b/dir/sub
+@@ -1,2 +1,4 @@
+ A
+ B
++C
++D
+diff --git a/file0 b/file0
+index 01e79c3..b414108 100644
+--- a/file0
++++ b/file0
+@@ -1,3 +1,6 @@
+ 1
+ 2
+ 3
++4
++5
++6
+diff --git a/file2 b/file2
+deleted file mode 100644
+index 01e79c3..0000000
+--- a/file2
++++ /dev/null
+@@ -1,3 +0,0 @@
+-1
+-2
+-3
+$
diff --git a/t/t4013/diff.whatchanged_master b/t/t4013/diff.whatchanged_master
new file mode 100644
index 000000000..c22416c00
--- /dev/null
+++ b/t/t4013/diff.whatchanged_master
@@ -0,0 +1,30 @@
+$ git whatchanged master
+commit c7a2ab9e8eac7b117442a607d5a9b3950ae34d5a
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:03:00 2006 +0000
+
+ Side
+
+:100644 100644 35d242b... 7289e35... M dir/sub
+:100644 100644 01e79c3... f4615da... M file0
+:000000 100644 0000000... 7289e35... A file3
+
+commit 889b315013ef9f2e2f90aa0b054b267c8a557847
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:02:00 2006 +0000
+
+ Third
+
+:100644 100644 8422d40... cead32e... M dir/sub
+:000000 100644 0000000... b1e6722... A file1
+
+commit 7952a93e09bf565b5592766a438b40cd81f4846f
+Author: A U Thor <author@example.com>
+Date: Mon Jun 26 00:01:00 2006 +0000
+
+ Second
+
+:100644 100644 35d242b... 8422d40... M dir/sub
+:100644 100644 01e79c3... b414108... M file0
+:100644 000000 01e79c3... 0000000... D file2
+$