demonstration of OpenTofu filesystem mirror issue with version `0.0.0`

tofu-issue.sh

#!/usr/bin/env bash
set -xeEuo pipefail
trap 'echo "Error when executing $BASH_COMMAND at line $LINENO!" >&2' ERR

dir="$(mktemp -d "$PWD/tofu-report.XXXXXX")"
tf_root="$dir/tf-root"
: "${KEEP:="0"}"
trap 'test "$KEEP" == 1 || rm -rf "$dir" || :' EXIT
export TF_CLI_CONFIG_FILE="$dir/.tofurc"
PLUGINS_DIR="$dir/plugins"
PROVIDER="registry.terraform.io/hashicorp/scaffolding"
GOOS="$(go env GOOS)"
GOARCH="$(go env GOARCH)"
cat <<EOF >"$TF_CLI_CONFIG_FILE"
provider_installation {
  filesystem_mirror {
    path    = "$PLUGINS_DIR"
    include = ["$PROVIDER"]
  }
  direct {
    exclude = ["$PROVIDER"]
  }
}
EOF

git clone "https://github.com/hashicorp/terraform-provider-scaffolding-framework" "$dir/repo"

for PROVIDER_VERSION in 0.0.1 0.0.0; do
  MIRROR_PATH="$PLUGINS_DIR/$PROVIDER/$PROVIDER_VERSION/${GOOS}_${GOARCH}/terraform-provider-scaffolding_v$PROVIDER_VERSION"
  tf_root="$dir/tf/v$PROVIDER_VERSION"
  mkdir -p "${MIRROR_PATH%/*}" "$tf_root"
  (cd "$dir/repo" && go build -o "$MIRROR_PATH" ".")
  cat <<EOF >"$tf_root/main.tf"
terraform {
  required_providers {
    scaffolding = {
      source = "$PROVIDER"
      version = "$PROVIDER_VERSION"
    }
  }
}
EOF
  (
    cd "$tf_root"
    export TF_LOG=trace
    export TF_LOG_PATH="$tf_root/log.txt"
    tofu init
  ) || echo "tofu errored!"
done

zz-01-terraform-error-log.txt

2024-11-28T13:35:42.592+0100 [INFO]  OpenTofu version: 1.8.5
2024-11-28T13:35:42.592+0100 [DEBUG] using github.com/hashicorp/go-tfe v1.36.0
2024-11-28T13:35:42.592+0100 [DEBUG] using github.com/opentofu/hcl/v2 v2.0.0-20240416130056-03228b26f391
2024-11-28T13:35:42.592+0100 [DEBUG] using github.com/hashicorp/terraform-svchost v0.1.1
2024-11-28T13:35:42.592+0100 [DEBUG] using github.com/zclconf/go-cty v1.14.4
2024-11-28T13:35:42.592+0100 [INFO]  Go runtime version: go1.23.3
2024-11-28T13:35:42.592+0100 [INFO]  CLI args: []string{"tofu", "init"}
2024-11-28T13:35:42.592+0100 [TRACE] Stdout is a terminal of width 181
2024-11-28T13:35:42.592+0100 [TRACE] Stderr is a terminal of width 181
2024-11-28T13:35:42.592+0100 [TRACE] Stdin is a terminal
2024-11-28T13:35:42.592+0100 [DEBUG] Attempting to open CLI config file: /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/.tofurc
2024-11-28T13:35:42.592+0100 [INFO]  Loading CLI configuration from /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/.tofurc
2024-11-28T13:35:42.592+0100 [DEBUG] Not reading CLI config directory because config location is overridden by environment variable
2024-11-28T13:35:42.592+0100 [DEBUG] Explicit provider installation configuration is set
2024-11-28T13:35:42.592+0100 [TRACE] Selected provider installation method cliconfig.ProviderInstallationFilesystemMirror("/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins") with includes [registry.terraform.io/hashicorp/scaffolding] and excludes []
2024-11-28T13:35:42.592+0100 [TRACE] Selected provider installation method cliconfig.ProviderInstallationDirect with includes [] and excludes [registry.terraform.io/hashicorp/scaffolding]
2024-11-28T13:35:42.592+0100 [DEBUG] Found the config directory: /home/kdn/.config/opentofu
2024-11-28T13:35:42.593+0100 [INFO]  CLI command args: []string{"init"}
2024-11-28T13:35:42.593+0100 [TRACE] Meta.Backend: no config given or present on disk, so returning nil config
2024-11-28T13:35:42.593+0100 [TRACE] Meta.Backend: backend has not previously been initialized in this working directory
2024-11-28T13:35:42.593+0100 [DEBUG] New state was assigned lineage "bb300d0c-5172-449d-dffe-22faa3fa230d"
2024-11-28T13:35:42.593+0100 [TRACE] Meta.Backend: using default local state only (no backend configuration, and no existing initialized backend)
2024-11-28T13:35:42.593+0100 [TRACE] Meta.Backend: instantiated backend of type <nil>
2024-11-28T13:35:42.593+0100 [DEBUG] checking for provisioner in "."
2024-11-28T13:35:42.593+0100 [DEBUG] checking for provisioner in "/nix/store/wzpdfc7mbw9malnwillz9a172y9ijwnm-opentofu-1.8.5/bin"
2024-11-28T13:35:42.593+0100 [TRACE] Meta.Backend: backend <nil> does not support operations, so wrapping it in a local backend
2024-11-28T13:35:42.593+0100 [TRACE] backend/local: state manager for workspace "default" will:
 - read initial snapshot from terraform.tfstate
 - write new snapshots to terraform.tfstate
 - create any backup at terraform.tfstate.backup
2024-11-28T13:35:42.593+0100 [TRACE] statemgr.Filesystem: reading initial snapshot from terraform.tfstate
2024-11-28T13:35:42.593+0100 [TRACE] statemgr.Filesystem: snapshot file has nil snapshot, but that's okay
2024-11-28T13:35:42.593+0100 [TRACE] statemgr.Filesystem: read nil snapshot
2024-11-28T13:35:42.594+0100 [TRACE] getproviders.SearchLocalDirectory: found registry.terraform.io/hashicorp/scaffolding v0.0.0 for linux_amd64 at /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.0/linux_amd64
2024-11-28T13:35:42.594+0100 [TRACE] getproviders.SearchLocalDirectory: found registry.terraform.io/hashicorp/scaffolding v0.0.1 for linux_amd64 at /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.1/linux_amd64
2024-11-28T13:35:42.594+0100 [DEBUG] no available releases match the given constraints 0.0.0
2024-11-28T13:35:42.594+0100 [DEBUG] Available releases: [0.0.0 0.0.1]

zzz-00-shell-output.txt

+ trap 'echo "Error when executing $BASH_COMMAND at line $LINENO!" >&2' ERR
++ mktemp -d /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.XXXXXX
+ dir=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ
+ tf_root=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf-root
+ : 1
+ trap 'test "$KEEP" == 1 || rm -rf "$dir" || :' EXIT
+ export TF_CLI_CONFIG_FILE=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/.tofurc
+ TF_CLI_CONFIG_FILE=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/.tofurc
+ PLUGINS_DIR=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins
+ PROVIDER=registry.terraform.io/hashicorp/scaffolding
++ go env GOOS
+ GOOS=linux
++ go env GOARCH
+ GOARCH=amd64
+ cat
+ git clone https://github.com/hashicorp/terraform-provider-scaffolding-framework /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/repo
Cloning into '/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/repo'...
remote: Enumerating objects: 1123, done.
remote: Counting objects: 100% (588/588), done.
remote: Compressing objects: 100% (206/206), done.
remote: Total 1123 (delta 526), reused 388 (delta 382), pack-reused 535 (from 1)
Receiving objects: 100% (1123/1123), 456.16 KiB | 4.80 MiB/s, done.
Resolving deltas: 100% (829/829), done.
+ for PROVIDER_VERSION in 0.0.1 0.0.0
+ MIRROR_PATH=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.1/linux_amd64/terraform-provider-scaffolding_v0.0.1
+ tf_root=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.1
+ mkdir -p /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.1/linux_amd64 /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.1
+ cd /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/repo
+ go build -o /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.1/linux_amd64/terraform-provider-scaffolding_v0.0.1 .
+ cat
+ cd /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.1
+ export TF_LOG=trace
+ TF_LOG=trace
+ export TF_LOG_PATH=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.1/log.txt
+ TF_LOG_PATH=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.1/log.txt
+ tofu init

Initializing the backend...

Initializing provider plugins...
- Finding registry.terraform.io/hashicorp/scaffolding versions matching "0.0.1"...
- Installing registry.terraform.io/hashicorp/scaffolding v0.0.1...
- Installed registry.terraform.io/hashicorp/scaffolding v0.0.1 (unauthenticated)

OpenTofu has created a lock file .terraform.lock.hcl to record the provider
selections it made above. Include this file in your version control repository
so that OpenTofu can guarantee to make the same selections by default when
you run "tofu init" in the future.

╷
│ Warning: Incomplete lock file information for providers
│ 
│ Due to your customized provider installation methods, OpenTofu was forced to calculate lock file checksums locally for the following providers:
│   - registry.terraform.io/hashicorp/scaffolding
│ 
│ The current .terraform.lock.hcl file only includes checksums for linux_amd64, so OpenTofu running on another platform will fail to install these providers.
│ 
│ To calculate additional checksums for another platform, run:
│   tofu providers lock -platform=linux_amd64
│ (where linux_amd64 is the platform to generate)
╵

OpenTofu has been successfully initialized!

You may now begin working with OpenTofu. Try running "tofu plan" to see
any changes that are required for your infrastructure. All OpenTofu commands
should now work.

If you ever set or change modules or backend configuration for OpenTofu,
rerun this command to reinitialize your working directory. If you forget, other
commands will detect it and remind you to do so if necessary.
+ for PROVIDER_VERSION in 0.0.1 0.0.0
+ MIRROR_PATH=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.0/linux_amd64/terraform-provider-scaffolding_v0.0.0
+ tf_root=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.0
+ mkdir -p /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.0/linux_amd64 /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.0
+ cd /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/repo
+ go build -o /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/plugins/registry.terraform.io/hashicorp/scaffolding/0.0.0/linux_amd64/terraform-provider-scaffolding_v0.0.0 .
+ cat
+ cd /home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.0
+ export TF_LOG=trace
+ TF_LOG=trace
+ export TF_LOG_PATH=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.0/log.txt
+ TF_LOG_PATH=/home/kdn/.config/JetBrains/IntelliJIdea2024.3/scratches/tofu-report.OtWtNZ/tf/v0.0.0/log.txt
+ tofu init

Initializing the backend...

Initializing provider plugins...
- Finding registry.terraform.io/hashicorp/scaffolding versions matching "0.0.0"...
╷
│ Error: Failed to resolve provider packages
│ 
│ Could not resolve provider registry.terraform.io/hashicorp/scaffolding: no available releases match the given constraints 0.0.0
╵

+ echo 'tofu errored!'
tofu errored!
+ test 1 == 1