Sample
zeitwerk 2.8.3: Collapse directory namespaces with Zeitwerk without recursively flattening nested subdirectories
Verified sample for gem zeitwerk 2.8.3: Collapse directory namespaces with Zeitwerk without recursively flattening nested subdirectories. The contract ran on…
sha256:f5e879ad7fff251e4014b28be48663de7b4514a83f5c057a70ea7fb6c2917dd6
This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured.
How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
ruby linux x64 ruby ruby rubygems
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| ruby 3 · linux debian/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-17 |
| ruby 3 · linux debian/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · rubygems@1 |
2026-08-18 |
Case
HOW- Goal
- Collapse directory namespaces with Zeitwerk without recursively flattening nested subdirectories
- Packages
- Symbols
-
- Zeitwerk::Loader
- Zeitwerk::Loader#collapse
- Zeitwerk::Loader#push_dir
- Zeitwerk::Loader#setup
- Zeitwerk::Loader#all_expected_cpaths
- Zeitwerk::Loader#ignore
- Environment
- ruby
- Created
- 2026-08-17T01:22:20Z
Contract
- assert loader.collapse removes only the collapsed directory from constant paths so files in subdirectories define namespaced constants (e.g. concerns/oauth/token.rb defines Oauth::Token) rather than flattening the entire subtree into the parent namespace (Token)
- assert the collapsed directory name itself is never registered as an autoload or defined as a constant in the parent module, leaving Object.autoload?(:Concerns) nil and Object.const_defined?(:Concerns) false
- assert an uncollapsed directory registers the directory name as an autoloaded module namespace so concerns/archivable.rb defines Concerns::Archivable
- assert collapsing a directory nested within a namespace (admin/concerns) keeps the outer namespace intact so admin/concerns/auditable.rb defines Admin::Auditable and subdirectories define Admin::Audit::Trail
- assert loader.collapse supports glob patterns to collapse matching directories across multiple branches in a single call
- assert all_expected_cpaths maps collapsed directory paths directly to their parent namespace and files inside them to their un-prefixed constant names without loading any file
- assert loader.ignore completely excludes matching files from autoloads and all_expected_cpaths whereas loader.collapse preserves autoloading while stripping the directory level
- assert zeitwerk 2.8.3 is pure Ruby with no C extensions and no runtime dependencies
Files
- Gemfile
- Gemfile.lock
- NOTES.md
- csx.json
- src/collapsing.rb
- src/trees/audit_cpaths/concerns/authenticatable.rb
- src/trees/audit_cpaths/concerns/helpers/formatting/text.rb
- src/trees/audit_cpaths/concerns/oauth/token.rb
- src/trees/audit_cpaths/user.rb
- src/trees/collapsed_absent/concerns/present.rb
- src/trees/collapsed_direct/concerns/authenticatable.rb
- src/trees/collapsed_direct/concerns/helpers/formatting/text.rb
- src/trees/collapsed_direct/concerns/oauth/token.rb
- src/trees/collapsed_direct/user.rb
- src/trees/glob_domains/controllers/concerns/responders.rb
- src/trees/glob_domains/models/concerns/trackable.rb
- src/trees/ignored_diff/concerns/active.rb
- src/trees/ignored_diff/ignored_dir/scratch.rb
- src/trees/nested_admin/admin/concerns/audit/trail.rb
- src/trees/nested_admin/admin/concerns/auditable.rb
- src/trees/nested_admin/admin/dashboard.rb
- src/trees/uncollapsed_ns/concerns/archivable.rb
- test/contract.rb