[newhoggy]

🤖 New release

• patchcov: 0.3.0 -> 0.4.0 (⚠ API breaking changes)

⚠ patchcov breaking changes

--- failure constructible_struct_adds_field: struct exhaustively constructible through public API adds field ---

Description:
A pub struct that could be exhaustively constructed with a literal using only public API has a new pub field, breaking existing exhaustive literals.
        ref: https://doc.rust-lang.org/reference/expressions/struct-expr.html
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.51.0/src/lints/constructible_struct_adds_field.ron

Failed in:
  field Cli.error_format in /tmp/.tmpLCNaX2/patchcov/src/cli.rs:57

Changelog

0.4.0 - 2026-10-09

Added

• (cli) mark a truncated path-mismatch sample and name its size once
• (cli) JSON lines for lint-markers findings and the merge summary
• (cli) structured fields on JSON warnings
• (cli) structured gate fields in the JSON error output
• (cli) print warnings as JSON lines under --error-format json
• (cli) opt-in JSON error output on stderr
• [breaking] exit with a distinct code for each class of failure
• (diff) [breaking] fail by default when a report's paths match no tracked file
• (diff) detect the default base branch from origin/HEAD, main or master

Documentation

• align path-mismatch example with checkout normalization
• (reference) explain the path-mismatch change when upgrading from 0.3.0
• (reference) show level in the gate error example
• (reference) show the anchored report path in the JSON warning examples
• (troubleshooting) say a path mismatch exits 7, not 1
• (reference) word the path-mismatch truncation rule without Rust notation
• (reference) say how to tell that a path-mismatch unmatched sample is truncated
• (cli) tighten the note on display-string paths in JSON warnings
• (cli) say the report and shard fields of JSON warnings are display strings
• (reference) describe the JSON finding and merge summary lines
• (reference) list the fields of each JSON warning kind
• recommend cargo install --locked and document the fresh-resolution MSRV job
• (reference) document the JSON warning line and the error level
• (readme) say the other formats fail under --branch-coverage
• (readme) say which report formats support --branch-coverage in the intro
• (reference) document the exit code for each failure class
• (release) anchor the docs changelog parser and list every group
• (release) group docs commits under Documentation in the changelog
• describe the default base branch resolution order
• (contributing) clarify what CI covers for lint-markers and docs
• (readme) address review of the mission and branch-coverage wording
• (readme) add a mission statement and fix the branch-coverage line

Fixed

• (cli) discover diff repositories from subdirectories
• (cli) preserve input arguments in report and shard labels
• (cli) explain spaced negative float thresholds
• (cli) preserve chain and gates in JSON error fallback
• (cli) simplify the mismatch-sample suffix and tighten docs wording
• (cli) address review of the JSON error fallback
• (cli) keep code in the JSON error line when the full report cannot be serialized
• (tests) match GitHub more closely in the doc link check
• (cli) report a missing --fail-under-* value instead of blaming the next argument
• (cli) carry the record's level and kind into the JSON fallback line
• (cli) print a minimal JSON line when a record fails to serialize
• (diff) normalise -0 thresholds and cover negatives end to end
• (diff) reject negative --fail-under-patch and --fail-under-lines values
• (markers) make MarkerError non-exhaustive and tidy the JSON line docs
• (cli) reject non-finite --fail-under-patch / --fail-under-lines values
• (cli) report measured gate values unrounded
• (ci) run the real unlocked cargo install in the fresh-resolution job
• (cli) address review of the JSON warnings
• (cli) address review of the JSON error output
• (cli) address review of the exit-code change
• (diff) keep the deprecated --fail-on-path-mismatch a pure no-op
• (diff) name the chosen base in the merge-base error; isolate the master test

Other

• Merge pull request perf(cli): build JSON fallbacks only on serialization failure #126 from rust-works/issue-124-perf-json-fallback-lazy
• (cli) check troubleshooting example against exit-7 error
• (cli) build JSON fallbacks only on serialization failure
• check links in all tracked markdown except the changelog
• (cli) preserve as-typed labels after rebase
• (cli) cover baseline Go reports from subdirectories
• (cli) define JSON fallback fields in one place
• Merge pull request docs(reference): explain the path-mismatch change when upgrading from 0.3.0 #117 from rust-works/issue-108-docs-path-mismatch-upgrade-note
• Merge pull request fix(cli): preserve input arguments in report and shard labels #120 from rust-works/issue-106-decide-relative-path-naming-in-warnings
• Merge pull request test(cli): check path-mismatch doc examples against Display #121 from rust-works/issue-105-test-path-mismatch-doc-examples
• Merge pull request fix(cli): explain spaced negative float thresholds #118 from rust-works/issue-104-diff-spaced-nonfinite-threshold-message
• Merge pull request fix(cli): preserve chain and gates in JSON error fallback #116 from rust-works/issue-102-json-fallback-keep-gates
• (cli) accept CRLF in the troubleshooting example
• (cli) pin input labels in empty shard errors
• (cli) check path-mismatch doc examples against Display
• (cli) check warning kind field types against docs
• parse documentation links with CommonMark
• bound release and fresh MSRV job durations
• (cli) check JSON gate order against reference docs
• Merge pull request fix(cli): keep code in the JSON error line when the full report cannot be serialized #90 from rust-works/issue-83-json-error-keep-code
• Merge pull request docs(reference): show the anchored report path in the JSON warning examples #94 from rust-works/issue-88-docs-json-warning-path
• Merge pull request refactor(cli): derive emit's level and kind from the record #98 from rust-works/issue-85-emit-derive-level-kind
• (cli) cover the fallback labels through one fixed-label wrapper
• (cli) address review of the docs-table checks
• (cli) derive emit's level and kind from the record
• (cli) check documented types, constants and the error object against the JSON output
• (cli) share the isolated command setup and cover a relative -C in the warning path tests
• check relative links and anchors in README, CONTRIBUTING and docs
• (cli) pin the unexplained -inf spelling and more missing-value cases
• cite the measured maximum in the timeout comment
• explain the job timeout values
• set timeout-minutes on the CI jobs
• Merge pull request docs(reference): say how to tell that a path-mismatch unmatched sample is truncated #77 from rust-works/issue-73-docs-path-mismatch-truncation
• Merge pull request docs(cli): say what the report and shard fields of JSON warnings hold for non-UTF-8 paths #76 from rust-works/issue-72-docs-json-warning-non-utf8-paths
• Merge pull request test(cli): pin the JSON fields of findings, the merge summary and warnings against docs/reference.md #80 from rust-works/issue-70-test-json-fields-vs-docs
• (cli) make the docs field checks less brittle
• (cli) pin the JSON fields of findings, the merge summary and warnings against docs/reference.md
• (cli) drop a warn test that restated render
• (cli) share the stderr format lookup and render path between warn and emit
• (msrv) run the test suite on the MSRV toolchain
• (markers) return a structured MarkerError from scan
• Merge pull request feat(cli): structured fields on JSON warnings #66 from rust-works/issue-61-json-warning-fields
• (cli) derive a deprecated warning's fields from its flag
• (cli) assert warnings by value without untested panic branches
• (cli) exercise -inf through the value parser and assert accepted thresholds
• (msrv) run doctests on the MSRV toolchain
• (diff) assert the patch gate's data without an untested panic branch
• Merge pull request ci(msrv): check the MSRV against a fresh dependency resolution weekly #57 from rust-works/issue-52-ci-msrv-fresh-resolution
• (msrv) check the MSRV against a fresh dependency resolution weekly
• run doctests in the test job
• Merge pull request feat(cli): opt-in JSON error output on stderr #50 from rust-works/issue-47-json-error-output
• (exit) do not depend on the OS wording of a missing file
• (deps) drop the unused clap env feature
• pass --locked to every cargo step
• (exit) a path mismatch exits 7 unless it is allowed
• Merge pull request feat(diff): detect the default base branch from origin/HEAD, main or master #38 from rust-works/issue-35-default-base-branch
• Merge pull request build(binstall): describe the release archives to cargo-binstall #40 from rust-works/issue-30-cargo-binstall
• (binstall) fail when the binstall metadata drifts from the release workflow
• (binstall) describe the release archives to cargo-binstall
• run patchcov lint-markers in the Lint job

Changed

• Report and shard diagnostic labels now preserve the input argument in diff and
  merge, even with -C. This changes warning messages and JSON report/shard
  values that previously included the working directory, and the corresponding
  path-mismatch and empty-shard error messages. File resolution is unchanged.

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