From: Brandon Casey Date: Thu, 30 Jun 2011 00:34:57 +0000 (-0500) Subject: t/t7407: demonstrate that the command called by 'submodule foreach' loses stdin X-Git-Tag: v1.7.6.1~30^2~1 X-Git-Url: https://git.tokkee.org/?a=commitdiff_plain;h=91cd7e4b426b0dc4755212fcbac3c822499ddd15;p=git.git t/t7407: demonstrate that the command called by 'submodule foreach' loses stdin 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 Signed-off-by: Junio C Hamano --- diff --git a/t/t7407-submodule-foreach.sh b/t/t7407-submodule-foreach.sh index d8ad25036..97b7562db 100755 --- a/t/t7407-submodule-foreach.sh +++ b/t/t7407-submodule-foreach.sh @@ -288,4 +288,22 @@ 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