Rex run with HEREDOC

Rexfile

use 5.26;
use Rex;

task 'heredoc_run', sub {
    run 'foo', command => <<~'EOF',
        f=$(cat /tmp/num)
        if [ "$f" == 2 ]; then
            ls -l / >/tmp/foo.txt
        else
            ls -l / >/tmp/bar.txt
        fi
        EOF
      unless => <<~'EOF';
        f=$(cat /tmp/num)
        if [ "$f" == 2 ]; then
            exit 1
        else
            exit 0
        fi
        EOF
};

also this works:

   run "foo",
        command => <<EOF,
f=\$(cat /tmp/num)
if [ "\$f" == 2 ]; then
    ls -l / >/tmp/foo.txt
else
    ls -l / >/tmp/bar.txt
fi
EOF
        unless => <<EOF;
f=\$(cat /tmp/num)
if [ "\$f" == 2 ]; then
    exit 1
else
    exit 0
fi
EOF

which is a little bit my usecase

Yes, that should work too! 👍

run takes arguments as strings, so these could he HEREDOCs as well.

It's also possible to add single quotes in the the HEREDOC starter indicator, like <<'EOF' and then the whole HEREDOC will be treated as a string within single quotes (and this less escaping have to be done e.g. every \$ can become the more naturally readable $).

With adding v5.26, indented HEREDOCs work nicely as well with <<~'EOF' if needed. Then the whole HEREDOC and the end marker string can be indented too, leading to even more readable code.