The console and output formatter previously displayed multi-line strings
with escaped newlines, e.g. `"hello\nworld\n"`. While this is a valid
way to write the HCL string, it is not as common or as readable as using
the heredoc syntax, e.g.
<<EOF
hello
world
EOF
This commit adds heredoc detection and display to this formatter,
including support for indented heredocs for nested multi-line strings.
This change affects the apply, console, and output sub-commands.
Use a slightly modified value renderer from terraform-provider-testing
to display values in the console REPL, as well as outputs from the apply
and outputs subcommands.
Derived from code in this repository, MIT licensed:
https://github.com/apparentlymart/terraform-provider-testing
Note that this is technically a breaking change for the console
subcommand, which would previously error if the user attempted to render
an unknown value (such as an unset variable). This was marked as an
unintentional side effect, with the goal being the new behaviour of
rendering "(unknown)", which is why I changed the behaviour in this
commit.
Alisdair McDiarmid