What versions are you using?

tfmerge: cb78f836b8f81e260e37255fba3dd3e63b148e82
environment: Darwin bne-nb-ariel 23.4.0 Darwin Kernel Version 23.4.0: Fri Mar 15 00:19:22 PDT 2024; root:xnu-10063.101.17~1/RELEASE_ARM64_T8112 arm64 arm Darwin

What are you doing?

Attempting to merge state files.

What was expected?

State files are merged and output file is populated with entire state.

What happened?

$ tfmerge -o infra2.tfstate infra1.tfstate 02-base.json

Error: Failed to load plugin schemas

Error while loading schemas for plugin components: Failed to obtain provider
schema: Could not load the schema for provider
registry.terraform.io/hashicorp/random: failed to instantiate provider
"registry.terraform.io/hashicorp/random" to obtain schema: unavailable
provider "registry.terraform.io/hashicorp/random"..

Anything else?

Files to reproduce

Hi, thanks for creating this tool! There's one edge case we're running when using this tool as part of a larger terraform import script - should the two statefiles share any resources in common, you'll get the following error:

resource {tf_resource} is defined in both state files terraform.tfstate and new.tfstate

Even if for example terraform.state contains resources A, B and new.tfstate contains resources B, C, ideally we'd want the import to still work such that terraform.state contains resources A, B, C after execution (skipping these resource defined errors)

Hi!

I have a directory with plenty of .tfstate files. I want to merge them into one. 1.tfstate to 200.tfstate
But i get 200 errors saying:

I ran "tfmerge -o 1.tfstate *"

showing state file /tfstate/done/100.tfstate: exit status 1
Failed to marshal state to json: no schema found for data.aws_sns_topic.sns_topic (in provider registry.terraform.io/-/aws)git/scripts/done/100.tfstate: exit status 1
Failed to marshal state to json: no schema found for data.aws_sns_topic.sns_topic (in provider registry.terraform.io/-/aws)

Also when i tried this:
"tfmerge -o 7.tfstate 8.tfstate 9.tfstate" i got:

1 error occurred:
	* showing state file /tfstate/done/9.tfstate: exit status 1
Failed to marshal state to json: schema version 2 for aws_security_group_rule.instances_egress_all in state does not match version 0 from the provider

Thanks for helping out!