opentofu/scripts/debug-terraform
Martin Atkins b5403059e6 scripts: helper for launching Terraform in the dlv debugger
This launches Terraform inside a headless dlv configured to accept a
remote debugging process. It's configured this way so it can be easily
used from a debugger GUI integrated into an IDE/editor, but it can also
be used from the CLI by running the command it prints.

Using a remote debugger here is useful even when debugging with the CLI,
since it keeps Terraform's verbose and colorful output from interfering
with the debugger UI.
2017-10-16 17:51:54 -07:00

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#!/usr/bin/env bash
# This is a helper script to launch Terraform inside the "dlv" debugger,
# configured to await a remote debugging connection on port 2345. You can
# then connect to it using the following command, or its equivalent in your
# debugging frontend of choice:
# dlv connect 127.0.0.1:2345
#
# This tool does not install dlv. To install it, see its instructions:
# https://github.com/derekparker/delve/tree/master/Documentation/installation
#
# For more convenient use, you may wish to put this script in your PATH:
# ln -s ../src/github.com/hashicorp/terraform/scripts/debug-terraform $GOPATH/bin/debug-terraform
#
# Note that when running this script the Terraform binary is NOT in $GOPATH/bin,
# so any providers installed there won't be found unless Terraform searches
# there for some _other_ reason.
set -eu
# Make sure we're debugging the process where the code is actually running.
# (This also, as a side effect, causes raw logs to go directly to stderr,
# and panics to be expressed directly, since we lose the log/panic wrapper.)
export TF_FORK=0
echo "Launching Terraform in a headless debug session"
echo "Connect to it using: dlv connect 127.0.0.1:2345"
echo "(Terraform takes a long time to build and launch in this mode; some logs will appear below)"
echo "---------------------------"
exec dlv debug github.com/hashicorp/terraform --headless --listen :2345 --log -- "$@"