fish-shell/tests/checks/noshebang.fish
Fabian Homborg 3700247b55 Use the full path for noshebang'd scripts
If you make a script called `foo` somewhere in $PATH, and did not give
it a shebang, this would end up calling

    sh foo

instead of

    sh /usr/bin/foo

which might not match up.

Especially if the path is e.g. `--version` or `-` that would end up
being misinterpreted *by sh*.

So instead we simply pass the actual_cmd to sh, because we need it
anyway to get it to fail to execute before.
2021-12-02 21:10:57 +01:00

92 lines
1.6 KiB
Fish

# RUN: %fish %s
# Test for shebangless scripts - see 7802.
set testdir (mktemp -d)
cd $testdir
touch file
chmod a+x file
function runfile
# Run our file twice, printing status.
# Arguments are passed to exercise the re-execve code paths; they have no other effect.
true # clear status
set -g fish_use_posix_spawn 1
./file arg1 arg2 arg3
echo $status
true # clear status
set -g fish_use_posix_spawn 0
./file arg1 arg2 arg3 arg4 arg5
echo $status
end
# Empty executable files are 'true'.
true >file
sleep 0.1
runfile
#CHECK: 0
#CHECK: 0
# Files without NUL are 'true' as well.
echo -e -n '#COMMENT\n#COMMENT' >file
runfile
#CHECK: 0
#CHECK: 0
# Never implicitly pass files ending with .fish to /bin/sh.
true >file.fish
sleep 0.1
chmod a+x file.fish
set -g fish_use_posix_spawn 0
./file.fish
echo $status
set -g fish_use_posix_spawn 1
./file.fish
echo $status
rm file.fish
#CHECK: 126
#CHECKERR: exec: {{.*}}{{.*}}
#CHECK: 126
#CHECKERR: exec: {{.*}}
# On to NUL bytes.
# The heuristic is that there must be a line containing a lowercase letter before the first NUL byte.
echo -n -e 'true\n\x00' >file
sleep 0.1
runfile
#CHECK: 0
#CHECK: 0
# Doesn't meet our heuristic as there is no newline.
echo -n -e 'true\x00' >file
sleep 0.1
runfile
#CHECK: 126
#CHECKERR: exec: {{.*}}
#CHECK: 126
#CHECKERR: exec: {{.*}}
# Doesn't meet our heuristic as there is no lowercase before newline.
echo -n -e 'NOPE\n\x00' >file
sleep 0.1
runfile
#CHECK: 126
#CHECKERR: exec: {{.*}}
#CHECK: 126
#CHECKERR: exec: {{.*}}
echo 'echo foo' >./-
sleep 0.1
chmod +x ./-
set PATH ./ $PATH
sleep 0.1
-
#CHECK: foo
echo $status
#CHECK: 0