fish-shell/tests/checks/redirect.fish
Fabian Homborg aba900a71f Reallow "2>>&1" as a redirection
Appending to an fd doesn't really make sense, but we allowed the
syntax previously and it was actually used.

It's not too harmful to allow it, so let's just do that again.

For the record: Zsh also allows it, bash doesn't.

Fixes #6614
2020-02-17 08:57:41 +01:00

95 lines
2.9 KiB
Fish

#RUN: %fish %s
function outnerr
command echo out $argv
command echo err $argv 1>&2
end
outnerr 0 &| count
#CHECK: 2
outnerr appendfd 2>>&1
#CHECK: out appendfd
#CHECK: err appendfd
set -l tmpdir (mktemp -d)
outnerr overwrite &>$tmpdir/file.txt
cat $tmpdir/file.txt
#CHECK: out overwrite
#CHECK: err overwrite
outnerr append &>>$tmpdir/file.txt
cat $tmpdir/file.txt
#CHECK: out overwrite
#CHECK: err overwrite
#CHECK: out append
#CHECK: err append
echo noclobber &>>?$tmpdir/file.txt
#CHECKERR: {{.*}} The file {{.*}} already exists
eval "echo foo |& false"
#CHECKERR: {{.*}} |& is not valid. In fish, use &| to pipe both stdout and stderr.
#CHECKERR: echo foo |& false
#CHECKERR: ^
# Ensure that redirection empty data still creates the file.
rm -f $tmpdir/file.txt
test -f $tmpdir/file.txt && echo "File exists" || echo "File does not exist"
#CHECK: File does not exist
echo -n >$tmpdir/file.txt
test -f $tmpdir/file.txt && echo "File exists" || echo "File does not exist"
#CHECK: File exists
rm $tmpdir/file.txt
echo -n 2>$tmpdir/file.txt
test -f $tmpdir/file.txt && echo "File exists" || echo "File does not exist"
#CHECK: File exists
rm -Rf $tmpdir
# Verify that we can turn stderr into stdout and then pipe it
# Note that the order here has historically been unspecified - 'errput' could conceivably appear before 'output'.
begin ; echo output ; echo errput 1>&2 ; end 2>&1 | sort | tee ../test/temp/tee_test.txt ; cat ../test/temp/tee_test.txt
#CHECK: errput
#CHECK: output
#CHECK: errput
#CHECK: output
# Test that trailing ^ doesn't trigger redirection, see #1873
echo caret_no_redirect 12345^
#CHECK: caret_no_redirect 12345^
# Verify that we can pipe something other than stdout
# The first line should be printed, since we output to stdout but pipe stderr to /dev/null
# The second line should not be printed, since we output to stderr and pipe it to /dev/null
begin ; echo is_stdout ; end 2>| cat > /dev/null
begin ; echo is_stderr 1>&2 ; end 2>| cat > /dev/null
#CHECK: is_stdout
# "Verify that pipes don't conflict with fd redirections"
# This code is very similar to eval. We go over a bunch of fads
# to make it likely that we will nominally conflict with a pipe
# fish is supposed to detect this case and dup the pipe to something else
echo "/bin/echo pipe 3 <&3 3<&-" | source 3<&0
echo "/bin/echo pipe 4 <&4 4<&-" | source 4<&0
echo "/bin/echo pipe 5 <&5 5<&-" | source 5<&0
echo "/bin/echo pipe 6 <&6 6<&-" | source 6<&0
echo "/bin/echo pipe 7 <&7 7<&-" | source 7<&0
echo "/bin/echo pipe 8 <&8 8<&-" | source 8<&0
echo "/bin/echo pipe 9 <&9 9<&-" | source 9<&0
echo "/bin/echo pipe 10 <&10 10<&-" | source 10<&0
echo "/bin/echo pipe 11 <&11 11<&-" | source 11<&0
echo "/bin/echo pipe 12 <&12 12<&-" | source 12<&0
#CHECK: pipe 3
#CHECK: pipe 4
#CHECK: pipe 5
#CHECK: pipe 6
#CHECK: pipe 7
#CHECK: pipe 8
#CHECK: pipe 9
#CHECK: pipe 10
#CHECK: pipe 11
#CHECK: pipe 12