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feat(detect): add --no-fallback option#539

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kvendingoldo merged 2 commits intotofuutils:mainfrom
railgun-0402:feat/no-fallback-detect
Feb 11, 2026
Merged

feat(detect): add --no-fallback option#539
kvendingoldo merged 2 commits intotofuutils:mainfrom
railgun-0402:feat/no-fallback-detect

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@railgun-0402 railgun-0402 commented Feb 2, 2026

Summary

  • Add --no-fallback flag to tenv tofu detect and tenv tf detect commands
  • When set, return exit code 1 if no version files are found instead of falling back to default strategy

Motivation

Closes #502

Users need to distinguish whether a folder is configured for OpenTofu or Terraform. Currently, tenv tofu detect and tenv tf detect return exit code 0 even when no version files are found, because
a fallback mechanism triggers to select a default version.

Changes

  • versionmanager/manager.go: Add ErrNoVersionFilesFound error and ResolveStrict() method
  • cmd/tenv/subcmd.go: Add --no-fallback flag to detect command
  • versionmanager/proxy/proxy.go: Update Detect() call signature
  • versionmanager/tenvlib/lib.go: Update Detect() call signature

Test plan

# In a directory without version files                                                                                                                                                                  
cd /tmp/test-dir                                                                                                                                                                                        
tenv tofu detect --no-fallback                                                                                                                                                                          
echo $?  # Returns 1                                                                                                                                                                                    
                                                                                                                                                                                                        
# With version file                                                                                                                                                                                     
echo "1.6.0" > .opentofu-version                                                                                                                                                                        
tenv tofu detect --no-fallback                                                                                                                                                                          
echo $?  # Returns 0

@railgun-0402
feat(detect): add --no-fallback option
8f6d842 
Signed-off-by: railgun-0402 <april-life.f-441-2011@docomo.ne.jp>
@railgun-0402 railgun-0402 force-pushed the feat/no-fallback-detect branch from ca92664 to 8f6d842 Compare February 2, 2026 14:39
@railgun-0402 railgun-0402 mentioned this pull request Feb 2, 2026
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kvendingoldo commented Feb 2, 2026

Hi! Thank you for PR!
Me or @dvaumoron will check it soon

@railgun-0402
chore: trigger CI
88228d6 
Signed-off-by: railgun-0402 <april-life.f-441-2011@docomo.ne.jp>
@railgun-0402 railgun-0402 force-pushed the feat/no-fallback-detect branch from 3b42a84 to 88228d6 Compare February 3, 2026 08:41
@kvendingoldo kvendingoldo merged commit c35ca9b into tofuutils:main Feb 11, 2026
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tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request Feb 15, 2026
build(deps): update tofuutils/tenv to v4.9.3
c1d0af4 
This MR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [tofuutils/tenv](https://github.com/tofuutils/tenv) | patch | `v4.9.1` → `v4.9.3` |

MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot).

**Proposed changes to behavior should be submitted there as MRs.**

---

### Release Notes

<details>
<summary>tofuutils/tenv (tofuutils/tenv)</summary>

### [`v4.9.3`](https://github.com/tofuutils/tenv/releases/tag/v4.9.3)

[Compare Source](tofuutils/tenv@v4.9.2...v4.9.3)

#### Changelog

- [`c35ca9b`](tofuutils/tenv@c35ca9b) Merge pull request [#&#8203;539](tofuutils/tenv#539) from railgun-0402/feat/no-fallback-detect
- [`88228d6`](tofuutils/tenv@88228d6) chore: trigger CI
- [`8f6d842`](tofuutils/tenv@8f6d842) feat(detect): add --no-fallback option

### [`v4.9.2`](https://github.com/tofuutils/tenv/releases/tag/v4.9.2)

[Compare Source](tofuutils/tenv@v4.9.1...v4.9.2)

#### Changelog

- [`5af2b17`](tofuutils/tenv@5af2b17) Merge pull request [#&#8203;542](tofuutils/tenv#542) from pcjedi/patch-2
- [`0098502`](tofuutils/tenv@0098502) chore: bump alpine from 3.20 to 3.23
- [`439d860`](tofuutils/tenv@439d860) Merge pull request [#&#8203;538](tofuutils/tenv#538) from tofuutils/dependabot/github\_actions/docker/login-action-3.7.0
- [`9006535`](tofuutils/tenv@9006535) gh-actions: bump docker/login-action from 3.6.0 to 3.7.0
- [`e76e7a8`](tofuutils/tenv@e76e7a8) Merge pull request [#&#8203;533](tofuutils/tenv#533) from tofuutils/dependabot/github\_actions/actions/setup-go-6.2.0
- [`cf3b354`](tofuutils/tenv@cf3b354) gh-actions: bump actions/setup-go from 6.1.0 to 6.2.0
- [`4f0da9d`](tofuutils/tenv@4f0da9d) Merge pull request [#&#8203;531](tofuutils/tenv#531) from tofuutils/dependabot/go\_modules/github.com/BurntSushi/toml-1.6.0
- [`4c3488a`](tofuutils/tenv@4c3488a) Merge pull request [#&#8203;535](tofuutils/tenv#535) from tofuutils/dependabot/github\_actions/actions/checkout-6.0.2
- [`33e5088`](tofuutils/tenv@33e5088) fix: readme bundle
- [`c21950b`](tofuutils/tenv@c21950b) gh-actions: bump actions/checkout from 6.0.1 to 6.0.2
- [`2fc928f`](tofuutils/tenv@2fc928f) go: bump github.com/BurntSushi/toml from 1.5.0 to 1.6.0

</details>

---

### Configuration

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---

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---

This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xMC4zIiwidXBkYXRlZEluVmVyIjoiNDMuMTAuMyIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiUmVub3ZhdGUgQm90IiwiYXV0b21hdGlvbjpib3QtYXV0aG9yZWQiLCJkZXBlbmRlbmN5LXR5cGU6OnBhdGNoIl19-->
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Allow disabling fallback for detect commands

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@railgun-0402 @kvendingoldo