Retire EnvLock and the env-mutation guards from test_support (#494) - #583
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Retire EnvLock and the env-mutation guards from test_support (#494)#583leynos wants to merge 18 commits into
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Reviewer's GuideRetires test-support environment and CWD mutation utilities by introducing explicit base-directory seams in manifest/glob code, updating tests to use injected bases, and enforcing a new lint/grep gate that forbids in-process environment mutation. Sequence diagram for manifest glob expansion with an injected workspace rootsequenceDiagram
participant CLI as CLI composition boundary
participant Query as Manifest query
participant Manifest as Manifest renderer
participant Glob as Glob expansion
participant FS as Filesystem
CLI->>Query: open_manifest_workspace(path, base)
Query->>Manifest: from_str_named(manifest_root)
Manifest->>Glob: expand_glob(pattern, manifest_root)
Glob->>FS: glob_with(base.join(pattern))
FS-->>Glob: matched paths
Glob-->>Manifest: pattern-relative paths
Manifest-->>CLI: rendered manifest result
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Summary
WalkthroughRelative configuration and glob paths now resolve from explicit directory bases. Manifest parsing carries the workspace root into glob expansion. Tests no longer mutate process-wide environment or working-directory state. Linting rejects these mutations. ChangesPath resolution and mutation control
Sequence Diagram(s)sequenceDiagram
participant ManifestQuery
participant WorkspaceLoader
participant ManifestParser
participant GlobWalker
ManifestQuery->>WorkspaceLoader: Open workspace with an optional base
WorkspaceLoader->>ManifestQuery: Return workspace root
ManifestQuery->>ManifestParser: Parse with manifest_root
ManifestParser->>GlobWalker: Expand glob with manifest_root
GlobWalker->>ManifestParser: Return relative matches
Suggested labels: Poem
Caution Pre-merge checks failedPlease resolve all errors before merging. Addressing warnings is optional.
❌ Failed checks (1 error, 6 warnings)
✅ Passed checks (13 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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August 23, 2026 18:02
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| let effective_path = cli | ||
| .directory | ||
| .as_deref() | ||
| .filter(|_| path.is_relative()) | ||
| .map_or_else(|| path.to_path_buf(), |directory| directory.join(path)); |
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When --config or NETSUKE_CONFIG supplies a relative path alongside -C, this now loads directory/path instead of resolving the selector against the process working directory. That contradicts the explicit contract in docs/netsuke-design.md:3033-3036 and docs/netsuke-design.md:3117-3120, and can silently load a different project-local file if both paths exist; preserve the selector path here and use -C only for automatic discovery and manifest lookup.
AGENTS.md reference: AGENTS.md:L38-L43
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#!/bin/bash
set -euo pipefail
printf '%s\n' '== checked-out revision =='
git rev-parse HEAD
git status --short
printf '%s\n' '== discovery symbol map =='
ast-grep outline src/cli/discovery.rs --items all --type function --match 'collect_file_layers_with_env|resolve_config_selector|load_layers_from_path_with_warning' --view expanded
printf '%s\n' '== explicit selector data-flow and tests =='
rg -n -C 5 --glob '*.rs' \
'collect_file_layers_with_env\s*\(|load_layers_from_path_with_warning\s*\(|explicit.*config|relative.*config|NETSUKE_CONFIG|directory.*join\(path\)' \
src tests
printf '%s\n' '== cited design contract =='
sed -n '3025,3042p;3109,3126p' docs/netsuke-design.md
printf '%s\n' '== latest diff for finding area =='
git diff HEAD^ HEAD -- src/cli/discovery.rsLength of output: 80246
@leynos, keep this thread open. The latest revision does not resolve the finding.
The code graph is:
resolve_config_selector → collect_file_layers_with_env → load_layers_from_path_with_warning.
In src/cli/discovery.rs, collect_file_layers_with_env still transforms a relative explicit selector into Cli::directory.join(path) before it loads the file. The test src/cli/discovery_layer_tests.rs::explicit_relative_config_uses_cli_directory also asserts that behaviour.
Use this AI agent prompt:
Fix the explicit configuration selector semantics in leynos/netsuke.
Problem:
`src/cli/discovery.rs::collect_file_layers_with_env` currently resolves a relative explicit configuration selector from `--config` or `NETSUKE_CONFIG` against `Cli::directory` (`-C`). This changes the selected file from the selector path to `directory/path`.
Required behaviour:
- Keep `--config` and `NETSUKE_CONFIG` selectors independent of `-C`.
- Pass the selected explicit `Path` directly to `load_layers_from_path_with_warning`.
- Apply `Cli::directory` only to automatic configuration discovery and other documented CLI path behaviours.
- Preserve absolute explicit selector behaviour.
- Preserve selector precedence: `--config` before `NETSUKE_CONFIG`.
Tests:
- Replace or update `src/cli/discovery_layer_tests.rs::explicit_relative_config_uses_cli_directory`.
- Add regression tests for a relative `--config` selector with `-C`.
- Add regression tests for a relative `NETSUKE_CONFIG` selector with `-C`.
- In each regression test, create different files at the process-working-directory selector path and at the `-C` path. Assert that Netsuke loads the selector path and does not load the `-C` path.
- Retain coverage that automatic discovery uses `-C`.
Documentation:
- Verify `docs/netsuke-design.md` and user documentation describe the resulting explicit-selector semantics correctly.
- Update documentation only if it conflicts with the required behaviour.
Validation:
- Run the focused discovery tests and the relevant CLI configuration-selection tests.
- Run `make check-fmt`, `make lint`, and `make test` if the repository workflow permits.
🧬 Code Graph Analysis Results
src/cli/discovery.rs
-
Lines 124–126:
discover_file_layersdelegates configuration discovery todiscover_file_layers_with_normalizerusing the filesystem path normalizer. -
Lines 129–155:
discover_file_layers_with_normalizerperforms discovery, converts successful layers and JSON preference intoDiscoveredLayers, and stores errors with default JSON behavior when discovery fails. -
Lines 172–214:
collect_file_layers_with_envapplies CLI config-path precedence overNETSUKE_CONFIG; automatic discovery is used when no explicit path exists. Relative explicit paths are resolved against-C, then loaded withload_layers_from_path_with_warning. -
Lines 221–229:
discovery_env_sourceexposes only the fixed discovery-related environment keys to automatic discovery. -
Lines 283–287:
env_config_pathignores unset or empty environment values and converts non-empty values intoPathBufs. -
Lines 303–339:
load_layers_from_path_with_warningloads explicit configuration chains, converts values to file merge layers, and returns errors plus warnings for missing or invalid files.
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| lint-env-mutation: ## Reject in-process environment mutation in source | ||
| @scripts/check-env-mutation.sh |
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The replacement lint policy is introduced here, but docs/developers-guide.md:2362-2380 and docs/developers-guide.md:2671-2676 still instruct contributors to import the now-deleted EnvLock and CwdGuard and to call the newly forbidden std::env::set_current_dir. Update those sections to describe injected base directories and child-process isolation so the documented contributor workflow remains usable.
AGENTS.md reference: AGENTS.md:L44-L47
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#!/bin/bash
set -euo pipefail
printf '%s\n' '== Documentation structure =='
ast-grep outline docs/developers-guide.md --items all --view condensed 2>/dev/null || true
printf '%s\n' '== Retired-guidance references in contributor documentation =='
rg -n -i -C 4 \
-e '\bEnvLock\b' \
-e '\bCwdGuard\b' \
-e 'std::env::set_current_dir' \
-e 'set_current_dir\s*\(' \
docs/developers-guide.md AGENTS.md README.md 2>/dev/null || true
printf '%s\n' '== Replacement guidance in contributor documentation =='
rg -n -i -C 4 \
-e 'base director(y|ies)' \
-e 'child process' \
-e 'Command::current_dir' \
-e 'process-global' \
docs/developers-guide.md AGENTS.md README.md 2>/dev/null || true
printf '%s\n' '== Retired test-support exports and direct mutation calls =='
ast-grep outline test_support/src/lib.rs --items all --view condensed 2>/dev/null || true
rg -n -C 2 \
-e '\bEnvLock\b' \
-e '\bCwdGuard\b' \
-e 'std::env::set_current_dir\s*\(' \
test_support src tests 2>/dev/null || true
printf '%s\n' '== Current branch and relevant documentation changes =='
git status --short
git log -1 --format='%H%n%s'
git diff --unified=3 HEAD^ HEAD -- docs/developers-guide.md AGENTS.md test_support/src/lib.rs 2>/dev/null || true
printf '%s\n' '== Matching pull-request review thread =='
gh api graphql \
-F owner='leynos' \
-F name='netsuke' \
-F number=583 \
-f query='
query($owner: String!, $name: String!, $number: Int!) {
repository(owner: $owner, name: $name) {
pullRequest(number: $number) {
reviewThreads(first: 100) {
nodes {
id
isResolved
comments(first: 20) {
nodes {
author { login }
body
url
}
}
}
}
}
}
}' \
--jq '.data.repository.pullRequest.reviewThreads.nodes[]
| select(any(.comments.nodes[]; .url == "https://github.com/leynos/netsuke/pull/583#discussion_r3839214104"))
| {id, isResolved, comments}'Length of output: 18920
🏁 Script executed:
#!/bin/bash
set -euo pipefail
printf '%s\n' '== TestWorld implementation map =='
ast-grep outline tests/bdd/fixtures/mod.rs --items all --view expanded 2>/dev/null || true
printf '%s\n' '== Current TestWorld method definitions and call sites =='
rg -n -P -C 3 \
'(?:fn\s+ensure_global_state_lock\b|ensure_global_state_lock\s*\()' \
tests src test_support docs AGENTS.md 2>/dev/null || true
printf '%s\n' '== Developer guide TestWorld section =='
sed -n '2528,2558p' docs/developers-guide.md
printf '%s\n' '== Current TestWorld public methods =='
rg -n -P -C 2 \
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tests/bdd/fixtures/mod.rs 2>/dev/null || trueLength of output: 10146
@leynos, keep this thread open.
Codegraph analysis confirms that TestWorld defines only track_env_var and shutdown_http_server. It does not define ensure_global_state_lock. The TestWorld state table also still lists the deleted global_state_lock field.
Give an AI agent this prompt:
Update `docs/developers-guide.md` to remove stale BDD `TestWorld` documentation after the environment-mutation refactor.
In the `TestWorld` scenario-state table, remove `global_state_lock` from the Environment state row. Update the row description so it describes only `env_vars_forward` as the child-process environment map.
In the “Key TestWorld methods” section, remove the `ensure_global_state_lock()` entry. Keep the documented methods aligned with `tests/bdd/fixtures/mod.rs`, where `TestWorld` currently exposes `track_env_var` and `shutdown_http_server`.
Do not reintroduce `EnvLock`, `CwdGuard`, process working-directory mutation, or process-global environment mutation. Preserve the existing guidance that uses injected base directories and isolated child processes.
Run `make check-fmt`, `make lint`, and `make test`.
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Actionable comments posted: 5
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Inline comments:
In `@scripts/check-env-mutation.sh`:
- Around line 16-17: Update the grep check in the environment-mutation script to
capture its exit status when no match is found; treat status 1 as success with
no violations, but emit an error and exit non-zero for every other grep failure,
while preserving the existing match handling.
In `@src/manifest/glob/mod.rs`:
- Line 241: Update the call to open_root_dir after constructing search to pass
None instead of base, since the relative base is already incorporated into
search. Add regression coverage verifying that a relative base such as fixtures
resolves correctly without duplicating the directory component.
- Line 27: Use camino UTF-8 path types throughout the injected glob-base flow:
update glob_paths, expand_glob, strip_base, open_root_dir, and
open_literal_prefix, and store ManifestParse::manifest_root as Utf8PathBuf while
passing workspace.root directly. Apply the related doctest and parent-relative
test caller updates; src/manifest/glob/mod.rs lines 27-27 is the primary change
site, and src/manifest/glob/walk.rs lines 27-27 requires the corresponding
caller/type update.
In `@src/manifest/mod.rs`:
- Line 33: Keep manifest root and parse-context base-directory values as camino
Utf8PathBuf throughout, replacing Option<PathBuf> and removing the intermediate
conversion from workspace.root in query setup. Update glob/parsing APIs and
imports to use camino types, converting to std::path::Path only where an
external API explicitly requires it.
In `@tests/bdd/steps/ir.rs`:
- Around line 216-217: Update the comments at tests/bdd/steps/ir.rs lines
216-217 and tests/bdd/steps/manifest/mod.rs lines 71-72 to explain that manifest
parsing injects the manifest directory as the glob base; remove the retired
process-CWD rationale, with no code changes required.
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📒 Files selected for processing (29)
Makefileclippy.tomldocs/users-guide.mdscripts/check-env-mutation.shsrc/cli/discovery.rssrc/cli/discovery_layer_tests.rssrc/manifest/glob/mod.rssrc/manifest/glob/tests/capability.rssrc/manifest/glob/tests/diagnostics.rssrc/manifest/glob/tests/expansion.rssrc/manifest/glob/walk.rssrc/manifest/mod.rssrc/manifest/parse_with_config.rssrc/manifest/query.rssrc/manifest/tests/workspace.rssrc/manifest/workspace.rstest_support/clippy.tomltest_support/src/cwd_guard.rstest_support/src/env_lock.rstest_support/src/lib.rstest_support/src/localizer.rstests/bdd/fixtures/mod.rstests/bdd/steps/configuration_discovery.rstests/bdd/steps/ir.rstests/bdd/steps/manifest/mod.rstests/data/glob.ymltests/data/glob_windows.ymltests/env_path_tests.rstests/manifest_glob_tests/capability_scope.rs
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💤 Files with no reviewable changes (4)
- test_support/src/cwd_guard.rs
- test_support/src/env_lock.rs
- test_support/src/lib.rs
- tests/bdd/fixtures/mod.rs
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@coderabbitai Please suggest a fix for this issue and supply a prompt for an AI coding agent to enable it to apply the fix. Include the file and symbol names indicated in the issue at the head of your response. Ensure that this is validated against the current version of the codegraph. If further refinement to address this finding would be deleterious, please supply a clear explanatory one to two paragraph markdown message in a code block that I can paste into the CodeScene web ui's diagnostic suppression function so this diagnostic can be silenced. Comment on lines +204 to +207 pub(super) fn expand_glob(
pattern: &str,
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resolve_absolute_workspace_root and open_manifest_workspace now accept an Option<&Path> base that anchors relative manifest parents. None keeps the ambient current-directory fallback so production behaviour is unchanged; tests inject the temporary directory instead of mutating the process CWD. The manifest workspace unit tests drop the local CurrentDirGuard struct and the EnvLock import, and from_path_uses_manifest_directory_for_caches stops changing the process working directory (the cache assertion no longer needs an ambient CWD swap once the workspace root is absolute). Part of #494.
Keep BDD manifest, IR and configuration scenarios in-process without mutating the harness environment or working directory. Resolve test manifest paths absolutely and anchor relative configuration selectors to the CLI directory, retaining existing assertions and precedence coverage. The TestWorld drops GlobalStateGuard, ensure_global_state_lock, and the EnvLock/CwdGuard imports; the BDD steps no longer call std::env::set_current_dir. Brings in the dependency work that unblocks #494.
expand_glob and glob_paths now accept an injected base anchoring relative patterns. When a manifest is loaded from a path, query.rs captures the resolved workspace root and the Jinja glob() closure passes it down, so relative glob patterns resolve against the manifest's own directory instead of the process working directory. String parsing keeps the ambient current-directory fallback at the composition root. open_root_dir and open_literal_prefix take the effective search path and the base, opening the base instead of '.' for relative prefixes. The base is stripped back off matches, so results keep their pattern-relative spelling. The glob capability tests inject a temp subdirectory as the explicit base for the parent-relative case instead of mutating the process CWD. Part of #494.
parent_relative_pattern_expands now writes the manifest into the temp subdirectory and loads it through manifest::from_path, so the resolved workspace root anchors the relative glob pattern. The test no longer acquires EnvLock, CwdGuard, or calls std::env::set_current_dir. Also apply rustfmt to the glob seam's signature lines.
Rename open_literal_prefix's injected-base parameter to avoid shadowing the destructured base binding, and rewrite the joined-search selection with Option::map_or_else per clippy::option_if_let_else. Drop a needless borrow in the manifest glob capability-scope test.
Condense the glob base-seam doc comments and inline the injected-base anchor so walk.rs returns to the 400-line ceiling and manifest/mod.rs stays under it, satisfying the Whitaker module-max-lines gate.
The manifest workspace, glob, and BDD migrations landed earlier in this branch left EnvLock and CwdGuard without callers. Delete both modules, drop their declarations and the CwdGuard re-export from test_support::lib, and remove the remaining doc references to EnvLock. The audit recorded in the associated milestone confirms test_support::env now holds only the pure prepend_path_value and write_manifest helpers, and http::duration_from_env already reads through the mockable::Env seam.
Add a lint-env-mutation target that greps src/, tests/, and test_support/ for std::env::set_var, remove_var, and set_current_dir, matching only the full std::env:: path so Command::env/env_clear/current_dir builder calls stay allowed. Wire the target into make lint so every commit is gated. Also ban std::env::set_current_dir via clippy disallowed-methods in both clippy.toml and test_support/clippy.toml, keeping the two lists in lockstep. Verified the gate: a deliberate tests/env_mutation_gate_proof.rs line "let _ = std::env::set_current_dir(\"/tmp\")" fails both lint-env-mutation and the clippy disallowed-methods lint; the file was removed afterwards. Part of #494.
Relative glob patterns now resolve against the manifest's workspace root, so tests/data/glob.yml and glob_windows.yml switch from repo-root-relative patterns (tests/data/glob_files/*.txt) to their own directory (glob_files/*.txt), and the name filters follow. Document the base in the users' guide glob section.
expand_glob embedded the injected base in the search text but then passed that same base to open_root_dir, so a relative base was opened and then traversed under its own name (double path component) and never matched. Resolve the base to a canonical, symlink-free absolute path before joining it into the search text: a workspace reached through a symbolic link now expands relative globs instead of rejecting the link as a literal prefix component. The capability root is opened from the combined search prefix, with regression coverage for both a relative base and a symlinked base. Part of #494.
check-env-mutation.sh now captures grep's exit status instead of using it as an if-condition: no match (status 1) stays clean, but a real grep failure (for example an unreadable directory, status 2) now fails the gate rather than silently passing. The BDD manifest-compilation comments still claimed relative glob patterns resolve because the process CWD stays at the project root; manifest parsing injects the manifest directory as the glob base, so the comments now say so. Part of #494.
Docs: - users-guide: explicit --config resolves against --directory when supplied. - netsuke-design: updated the config-resolution bullet to match. - developers-guide: replaced the retired EnvLock/CwdGuard sections with the injected-seam guidance and the lint gate; refreshed the ordering rules and the config-discovery note. Glob: - rename the shadowed base binding in expand_glob to satisfy clippy::shadow-reuse. Part of #494.
The relative-base and symlinked-base tests were added to capability.rs, which pushed the module over whitaker's module-max-lines lint. Move them into a dedicated base.rs test module so each module stays within the limit while keeping the two base-anchoring invariants tested. Part of #494.
The manifest root is already camino UTF-8 data (workspace.root), so the Option<PathBuf> crossing in ManifestParse forces an into_std_path_buf() conversion at the only consumer. Propagate Option<&camino::Utf8Path> through the internal glob APIs (expand_glob, glob_paths, open_root_dir, open_literal_prefix, strip_base) and keep std::path::Path only at the external from_path / from_path_with_policy_and_env boundaries. Extract pattern preparation into PreparedGlob so expand_glob stays under the CodeScene line ceiling: validation, normalisation, base canonicalisation (canonicalize_utf8, preserving the symlink fallback), the relative-only base join, and the strip base all move into PreparedGlob::new. expand_glob keeps matching, capability-prefix opening, error wrapping, and result collection. strip_base drops the double allocation: the matched path is already an owned String, so strip the base lexically and replace separators in place rather than going through to_string_lossy().replace(..). Test call sites that passed &Path bases now convert through Utf8Path::from_path, and the glob_paths doctest pins the new signature.
A relative --config or NETSUKE_CONFIG selector selects exactly the file it names relative to the shell original working directory. -C/--directory continues to anchor automatic discovery only, matching ADR-004 and the documented explicit-selector contract. The previous release anchored relative selectors onto -C, which silently changed which file a selector selects. Replace the discovery-layer join with a direct load of the selector path, and replace the unit test that asserted the old behavior with two regression tests: an explicit --config selector with -C set (with a decoy at the -C-joined path), and an env NETSUKE_CONFIG selector with -C set. Both assert the selector path loads and the -C path is never selected.
The users-guide claimed an explicit --config path resolves against the -C/--directory anchor when supplied. Selectors are in fact resolved relative to the shell original working directory, independent of -C, which anchors only automatic discovery. State that contract in the users-guide; netsuke-design already documents it correctly. Remove the stale TestWorld documentation in the developers-guide: the Environment state group no longer has a global_state_lock (the BDD process-global CWD lock was retired), and ensure_global_state_lock is no longer a TestWorld method. The row now lists only env_vars_forward as the child-process environment map, and the methods section keeps track_env_var.
The rebased branch retired process-global CWD mutation (#494), which left two configuration-discovery BDD scenarios passing relative --config selectors that resolved against the process working directory. Expand a {temp_dir} placeholder in apply_cli so scenarios name the selector absolutely, mirroring the absolute NETSUKE_CONFIG form that already passed. Also fix the two gate violations surfaced by make lint: - PreparedGlob::new shadowed its pattern parameter (clippy shadow_reuse); bind the GlobPattern state as pattern_state. - discovery_layer_tests.rs exceeded Whitaker's 400-line module limit after the selector-independence tests landed; split them into discovery_layer_selector_tests.rs.
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Retiring the BDD global-state lock shortened the Environment state row, breaking the aligned table-column style enforced by markdownlint MD060. Re-pad the row to the shared column widths.
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Summary
Closes #494
Retire the environment-mutation machinery in
test_supportand add a hard gate so the pattern cannot be reintroduced. All production seams now accept injected base-directory/environment data instead of reading ambient process state; the real CWD is read only at the command-line composition boundary.Changes
Phase 1 — explicit base-directory seams
src/manifest/workspace.rs:resolve_absolute_workspace_rootnow takes an explicit base directory;open_manifest_workspaceand wrappers thread it through. No more internalstd::env::current_dir().src/manifest/glob/{mod.rs,walk.rs}:expand_glob,glob_paths,open_root_dir,open_literal_prefixaccept an explicit base for relative literal prefixes. TheDir::open_ambient_dir(".", ...)call is removed.src/manifest/mod.rs/query.rs: captures the already-resolvedManifestWorkspace.rootin theglob()Jinja closure and threads it intoexpand_glob.Phase 2 — test migration
All manifest, glob, and BDD tests now pass explicit base directories instead of mutating CWD.
GlobalStateGuard/ensure_global_state_lockand theirEnvLock/CwdGuardusage are gone;project_scope_file(directory: Option<&Path>)is used for configuration discovery.Phase 3 — deletion + audit
test_support/src/env_lock.rs,test_support/src/cwd_guard.rs(previouslyenv_guard.rs,env_var_guard.rs,path_guard.rswere already removed).test_support/src/env.rsnow holds only the pure helpersprepend_path_valueandwrite_manifest.test_support/src/http/mod.rsduration_from_env/from_env_providerread through themockable::Envseam (env.raw(...)), notstd::env::var— confirmed, no change needed.Phase 4 — enforcement gate (demonstrated to fail)
make lintnow runslint-env-mutationfirst. The grep gate (scripts/check-env-mutation.sh) rejectsstd::env::set_var,std::env::remove_var, andstd::env::set_current_dirundersrc/,tests/, andtest_support/, matching only the fullstd::env::path soCommand::env/env_clear/current_dirstay allowed. Bothclippy.tomlandtest_support/clippy.tomlgain theset_current_dirdisallowed-method entry in lockstep.Deliberate-violation proof — a temporary
tests/env_mutation_gate_proof.rscontaininglet _ = std::env::set_current_dir("/tmp");produced:and independently via clippy
disallowed-methods:The temporary file was removed and the tree left clean.
Validation
make check-fmt✓ (exit 0)make lint✓ (exit 0) — includeslint-env-mutation, clippy-D warnings, and Whitakermake test✓ (exit 0) — suite + doctests green (30 passed, 6 ignored in test_support)--agentreview: 0 findings across 28 reviewed filesReferences
Summary by Sourcery
Replace process-global environment and working-directory mutation with explicit injected seams and prevent its reintroduction through lint enforcement.
New Features:
Bug Fixes:
Enhancements:
Documentation:
Tests:
Chores: