temp_make fails with "unrecognized option: directory"

[znerd]

Calling temp_make in a BATS file inside the container results in an error, like this:

not ok 48 my-test
# (from function `setup' in test file //tests/my-test.bats, line 14)
#   `TEST_TMP_DIR="$(temp_make)"' failed
# 
# -- ERROR: temp_make --
# mktemp: unrecognized option: directory
# BusyBox v1.27.2 (2018-06-06 09:08:44 UTC) multi-call binary.
# 
# Usage: mktemp [-dt] [-p DIR] [TEMPLATE]
# 
# Create a temporary file with name based on TEMPLATE and print its name.
# TEMPLATE must end with XXXXXX (e.g. [/dir/]nameXXXXXX).
# Without TEMPLATE, -t tmp.XXXXXX is assumed.
# 
# 	-d	Make directory, not file
# 	-q	Fail silently on errors
# 	-t	Prepend base directory name to TEMPLATE
# 	-p DIR	Use DIR as a base directory (implies -t)
# 	-u	Do not create anything; print a name
# 
# Base directory is: -p DIR, else $TMPDIR, else /tmp
# --
# 
# 
# -- ERROR: temp_del --
# rm: can't remove '': No such file or directory
# --
# 

On the face of it, it seems the OS inside the container (Alpine Linux?) is using the BSD-like mktemp instead of the GNU mktemp, while only the latter is currently supported by bats.

The related issue on the bats-file GitHub project is:

• ztombol/bats-file issue #3

[znerd]

Here's a quick fix: install the coreutils package in Alpine Linux.

docker run -it --entrypoint /bin/sh dduportal/bats:1.0.0 
/tests # mktemp
/tmp/tmp.BHNPFj
/tests # mktemp --version
mktemp: unrecognized option: version
BusyBox v1.27.2 (2018-06-06 09:08:44 UTC) multi-call binary.

Usage: mktemp [-dt] [-p DIR] [TEMPLATE]

Create a temporary file with name based on TEMPLATE and print its name.
TEMPLATE must end with XXXXXX (e.g. [/dir/]nameXXXXXX).
Without TEMPLATE, -t tmp.XXXXXX is assumed.

        -d      Make directory, not file
        -q      Fail silently on errors
        -t      Prepend base directory name to TEMPLATE
        -p DIR  Use DIR as a base directory (implies -t)
        -u      Do not create anything; print a name

Base directory is: -p DIR, else $TMPDIR, else /tmp
/tests # apk add coreutils
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
(1/3) Installing libattr (2.4.47-r6)
(2/3) Installing libacl (2.2.52-r3)
(3/3) Installing coreutils (8.28-r0)
Executing busybox-1.27.2-r11.trigger
OK: 19 MiB in 22 packages
/tests # mktemp --version
mktemp (GNU coreutils) 8.28
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by Jim Meyering and Eric Blake.
/tests # 

[dduportal]

Thanks a lot @znerd ! I've opened a PR for this (#9 ).