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Fix git-am safety checks

An earlier commit cbd64af added a check that prevents "git-am"
to run without its standard input connected to a terminal while
resuming operation.  This was to catch a user error to try
feeding a new patch from its standard input while recovery.

The assumption of the check was that it is an indication that a
new patch is being fed if the standard input is not connected to
a terminal.  It is however not quite correct (the standard input
can be /dev/null if the user knows the operation does not need
any input, for example).  This broke t3403 when the test was run
with its standard input connected to /dev/null.

When git-am is given an explicit command such as --skip, there
is no reason to insist that the standard input is a terminal; we
are not going to read a new patch anyway.

Credit goes to Gerrit Pape for noticing and reporting the
problem with t3403-rebase-skip test.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2006-09-15 23:19:02 -07:00
parent e7676d2f64
commit c95b138985

View file

@ -166,10 +166,25 @@ fi
if test -d "$dotest"
then
if test ",$#," != ",0," || ! tty -s
then
die "previous dotest directory $dotest still exists but mbox given."
fi
case "$#,$skip$resolved" in
0,*t*)
# Explicit resume command and we do not have file, so
# we are happy.
: ;;
0,)
# No file input but without resume parameters; catch
# user error to feed us a patch from standard input
# when there is already .dotest. This is somewhat
# unreliable -- stdin could be /dev/null for example
# and the caller did not intend to feed us a patch but
# wanted to continue unattended.
tty -s
;;
*)
false
;;
esac ||
die "previous dotest directory $dotest still exists but mbox given."
resume=yes
else
# Make sure we are not given --skip nor --resolved