[PATCH 1/2] t/t7407: demonstrate that the command called by 'submodule foreach' loses stdin
From: Brandon Casey <hidden>
Date: 2016-06-15 22:51:32
Subsystem:
the rest · Maintainer:
Linus Torvalds
The user-supplied command spawned by 'submodule foreach' loses its connection to the original standard input. Instead, it is connected to the output of a pipe within the git-submodule script. This can cause a problem if the command requires reading from stdin or if it changes its behavior based on whether stdin is a tty or not (e.g. git shortlog). Demonstrate this flaw. Signed-off-by: Brandon Casey <redacted> --- t/t7407-submodule-foreach.sh | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/t/t7407-submodule-foreach.sh b/t/t7407-submodule-foreach.sh
index e5be13c..e8d21b5 100755
--- a/t/t7407-submodule-foreach.sh
+++ b/t/t7407-submodule-foreach.sh@@ -292,4 +292,22 @@ test_expect_success 'use "update --recursive nested1" to checkout all submodules ) ' +test_expect_failure 'command passed to foreach retains notion of stdin' ' + ( + cd super && + git submodule foreach echo success >../expected && + yes | git submodule foreach "read y && test \"x\$y\" = xy && echo success" >../actual + ) && + test_cmp expected actual +' + +test_expect_failure 'command passed to foreach --recursive retains notion of stdin' ' + ( + cd clone2 && + git submodule foreach --recursive echo success >../expected && + yes | git submodule foreach --recursive "read y && test \"x\$y\" = xy && echo success" >../actual + ) && + test_cmp expected actual +' + test_done
--
1.7.6