[GSoC][PATCH 12/13] submodule foreach: document variable '$displaypath'

[Prathamesh Chavan <pc44800@gmail.com>]

It was observed that the variable '$displaypath' was accessible but
undocumented. Hence, document it.

Discussed-with: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
---
In this new version, the following changes have been made:
* Spelling mistake in the commit message was corrected.

 Documentation/git-submodule.txt |  6 ++++--
 t/t7407-submodule-foreach.sh    | 22 +++++++++++-----------
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/Documentation/git-submodule.txt b/Documentation/git-submodule.txt
index 8e7930ebc..0cca702cb 100644
--- a/Documentation/git-submodule.txt
+++ b/Documentation/git-submodule.txt
@@ -183,10 +183,12 @@ information too.
 
 foreach [--recursive] <command>::
 	Evaluates an arbitrary shell command in each checked out submodule.
-	The command has access to the variables $name, $sm_path, $sha1 and
-	$toplevel:
+	The command has access to the variables $name, $sm_path, $displaypath,
+	$sha1 and $toplevel:
 	$name is the name of the relevant submodule section in `.gitmodules`,
 	$sm_path is the path of the submodule as recorded in the superproject,
+	$displaypath contains the relative path from the current working
+	directory to the submodules root directory,
 	$sha1 is the commit as recorded in the superproject, and
 	$toplevel is the absolute path to its superproject, such that
 	$toplevel/$sm_path is the absolute path of the submodule.
diff --git a/t/t7407-submodule-foreach.sh b/t/t7407-submodule-foreach.sh
index 0663622a4..6ad57e061 100755
--- a/t/t7407-submodule-foreach.sh
+++ b/t/t7407-submodule-foreach.sh
@@ -82,16 +82,16 @@ test_expect_success 'test basic "submodule foreach" usage' '
 
 cat >expect <<EOF
 Entering '../sub1'
-$pwd/clone-foo1-sub1-$sub1sha1
+$pwd/clone-foo1-sub1-../sub1-$sub1sha1
 Entering '../sub3'
-$pwd/clone-foo3-sub3-$sub3sha1
+$pwd/clone-foo3-sub3-../sub3-$sub3sha1
 EOF
 
 test_expect_success 'test "submodule foreach" from subdirectory' '
 	mkdir clone/sub &&
 	(
 		cd clone/sub &&
-		git submodule foreach "echo \$toplevel-\$name-\$sm_path-\$sha1" >../../actual
+		git submodule foreach "echo \$toplevel-\$name-\$sm_path-\$displaypath-\$sha1" >../../actual
 	) &&
 	test_i18ncmp expect actual
 '
@@ -206,25 +206,25 @@ submodulesha1=$(cd clone2/nested1/nested2/nested3/submodule && git rev-parse HEA
 
 cat >expect <<EOF
 Entering '../nested1'
-$pwd/clone2-nested1-nested1-$nested1sha1
+$pwd/clone2-nested1-nested1-../nested1-$nested1sha1
 Entering '../nested1/nested2'
-$pwd/clone2/nested1-nested2-nested2-$nested2sha1
+$pwd/clone2/nested1-nested2-nested2-../nested1/nested2-$nested2sha1
 Entering '../nested1/nested2/nested3'
-$pwd/clone2/nested1/nested2-nested3-nested3-$nested3sha1
+$pwd/clone2/nested1/nested2-nested3-nested3-../nested1/nested2/nested3-$nested3sha1
 Entering '../nested1/nested2/nested3/submodule'
-$pwd/clone2/nested1/nested2/nested3-submodule-submodule-$submodulesha1
+$pwd/clone2/nested1/nested2/nested3-submodule-submodule-../nested1/nested2/nested3/submodule-$submodulesha1
 Entering '../sub1'
-$pwd/clone2-foo1-sub1-$sub1sha1
+$pwd/clone2-foo1-sub1-../sub1-$sub1sha1
 Entering '../sub2'
-$pwd/clone2-foo2-sub2-$sub2sha1
+$pwd/clone2-foo2-sub2-../sub2-$sub2sha1
 Entering '../sub3'
-$pwd/clone2-foo3-sub3-$sub3sha1
+$pwd/clone2-foo3-sub3-../sub3-$sub3sha1
 EOF
 
 test_expect_success 'test "submodule foreach --recursive" from subdirectory' '
 	(
 		cd clone2/untracked &&
-		git submodule foreach --recursive "echo \$toplevel-\$name-\$sm_path-\$sha1" >../../actual
+		git submodule foreach --recursive "echo \$toplevel-\$name-\$sm_path-\$displaypath-\$sha1" >../../actual
 	) &&
 	test_i18ncmp expect actual
 '
-- 
2.13.0