ale/stdin-wrapper

#!/usr/bin/env bash

# Authors: w0rp <devw0rp@gmail.com>, hauleth <lukasz@niemier.pl>
# Description: This script implements a wrapper for any program which does not accept
#   stdin input on most Unix machines. The input to the script is read to a
#   temporary file, and the first argument sets a particular file extension
#   for the temporary file.

set -eu

# All of the following arguments are read as command to run.
file_extension="$1"
shift

temp_dir=$(mktemp -d 2>/dev/null || mktemp -d -t 'ale_linter')
temp_file="$temp_dir/file$file_extension"
trap 'rm -r "$temp_dir"' EXIT

# In perfect world it wouldn't be needed, but some tools (`go vet`, I am looking
# at you) do not fit in line and require filename ending. Otherwise it would be
# simple as
#
#     "$@" /dev/stdin
#
# without all that hackery with copying `/dev/stdin`
cp /dev/stdin "$temp_file"

"$@" "$temp_file"