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Changelog

All notable changes to this project will be documented in this file.

This project adheres to Semantic Versioning.

Releases may yanked if there is a security bug, a soundness bug, or a regression.

Unreleased

  • Update ruzstd to 0.8.

    This increases the rustc version required to build cargo-llvm-cov. (rustc 1.73+ -> 1.81+) The cargo/rustc version required to run cargo-llvm-cov remains unchanged.

0.6.15 - 2024-12-21

  • Remove dependency on home to relax the MSRV on Windows.

  • Weaken errors related to rustc version to warnings. (#407)

0.6.14 - 2024-10-12

  • Add unstable --mcdc flag to enable mcdc coverage. (#383, thanks @Swatinem)

0.6.13 - 2024-09-14

  • Distribute prebuilt binary for x86_64 FreeBSD.

0.6.12 - 2024-09-03

  • Add --profraw-only option to cargo llvm-cov clean subcommand. (#385, thanks @smoelius)

  • Respect target.<triple>.rustdocflags that added in Cargo 1.78.

  • Disable quick-install fallback of cargo-binstall.

0.6.11 - 2024-07-18

  • Add support for MC/DC coverage. (#363, thanks @aytey)

  • Documentation improvements.

0.6.10 - 2024-06-01

  • Update ruzstd to 0.7.

    This increases the rustc version required to build cargo-llvm-cov. (rustc 1.70+ -> 1.73+) The cargo/rustc version required to run cargo-llvm-cov remains unchanged.

0.6.9 - 2024-04-05

  • Skip merging profraw data if profraw files don't exist and a profdata file already exists. (#360, thanks @weiznich)

  • Update opener to 0.7.

0.6.8 - 2024-03-16

  • Add unstable --branch flag to enable branch coverage. (#356)

0.6.7 - 2024-03-10

  • Add --nextest-archive-file option to cargo llvm-cov report to support calling it for the result of cargo llvm-cov nextest --archive-file. (#355)

  • Add unstable --dep-coverage option to show coverage of th specified dependency instead of the crates in the current workspace. (#353)

  • Fix issues in report when merging coverage. (#354)

0.6.6 - 2024-02-22

  • It is no longer needed to pass --target/--release/--cargo-profile to cargo llvm-cov nextest --archive-file in most cases. Options passed to cargo llvm-cov nextest-archive are now respected. (#349)

  • Support --release and --cargo-profile options for cargo llvm-cov nextest-archive. (#348)

0.6.5 - 2024-02-07

  • Add --skip-functions flag to coverage generation. (#346, thanks @mlveggo)

0.6.4 - 2024-01-25

  • Make home dependency Windows-only dependency.

0.6.3 - 2024-01-24

  • Fix "The file was not recognized as a valid object file" error with --doc/--doctests flag on WSL. (#343)

0.6.2 - 2024-01-18

  • Support setting file name of LLVM_PROFILE_FILE. (#340)

0.6.1 - 2024-01-13

  • Support --target option for cargo llvm-cov nextest-archive. (#334)

  • Support --no-cfg-coverage and --no-cfg-coverage-nightly flags in cargo llvm-cov show-env. (#333)

0.6.0 - 2023-12-28

  • Make --hide-instantiations flag default, and add --show-instantiations flag to allow opt-in of the previous behavior. (#330)

  • Support cargo llvm-cov nextest --archive-file. (#266, thanks @magnusja)

  • Add hint about cfgs. (#330)

0.5.39 - 2023-12-16

  • Remove dependency on is-terminal.

0.5.38 - 2023-12-13

  • Fix panic when running tests at / such as in docker. (#326, thanks @MikeDevresse)

0.5.37 - 2023-11-17

  • Add --fail-under-{functions,regions} options. (#323, thanks @CobaltCause)

0.5.36 - 2023-10-30

  • Support --doctests flag in cargo llvm-cov report and cargo llvm-cov show-env.

0.5.35 - 2023-10-18

  • Improve compile time.

0.5.34 - 2023-10-17

  • Improve performance and reduce disc usage by passing --no-deps to cargo metadata.

0.5.33 - 2023-09-26

  • Fix "The file was not recognized as a valid object file" error on WSL. (#317)

0.5.32 - 2023-09-23

  • Fix an issue where codes in the standard library are not being properly excluded from reports when using a custom toolchain. (#311)

  • Document a way to display coverage in VS Code.

0.5.31 - 2023-08-24

  • Fix empty source path generated in cobertura.xml. (#309, thanks @mstyura)

  • Prepare for future branch coverage support. (#308, thanks @Swatinem)

0.5.30 - 2023-08-23

  • Fix an issue where coverage is not collected or fails to generate coverage on cdylib or proc-macro crate on Windows. (#307)

  • Escape values that are shown by show-env subcommand. (#307)

0.5.29 - 2023-08-23

  • Diagnostics improvements. (#302)

0.5.28 - 2023-08-22

  • Diagnostics improvements. (#305, #306)

0.5.27 - 2023-08-14

  • Allow nightly to be specified by setting RUSTC_BOOTSTRAP=1, the same as for rustc and cargo. (#298, thanks @RocketJas)

0.5.26 - 2023-08-12

  • Fix support for trybuild 1.0.76+. (#301)

0.5.25 - 2023-08-06

  • Use --show-missing-lines logic in --fail-uncovered-lines. (#277, thanks @michaelvlach)

  • cargo-llvm-cov no longer sets the CARGO_INCREMENTAL=0 environment variable. (#297)

0.5.24 - 2023-07-28

  • Update cargo_metadata to 0.17.

0.5.23 - 2023-07-07

  • Inject additional contextual information about cargo-llvm-cov into the JSON output of llvm-cov. (#289, thanks @dnaka91)

    It allows other programs, that rely on this output, to make certain assertions about the behavior of cargo-llvm-cov and can help to share common information.

0.5.22 - 2023-06-29

  • Fix regression introduced in 0.5.21.

0.5.21 - 2023-06-29

Note: This release has been yanked due to regression fixed in 0.5.22.

  • Fix "-Z doctest-in-workspace has been stabilized in the 1.72 release" warning on the latest nightly.

0.5.20 - 2023-06-02

0.5.19 - 2023-04-28

  • Fix handling of --cargo-profile option for cargo llvm-cov nextest. (#269)

0.5.18 - 2023-04-25

  • Support --ignore-run-fail for cargo llvm-cov nextest. (#263)

0.5.17 - 2023-04-21

  • Set CARGO_LLVM_COV environment variable. (#259, thanks @def-)

0.5.16 - 2023-04-18

  • Improve the --codecov flag to match how region coverage is calculated to the HTML report. (#255, thanks @andrewgazelka)

0.5.15 - 2023-04-15

  • Fix version detection with dev build. (#257, thanks @tofay)

0.5.14 - 2023-04-05

  • Fix an issue where --codecov flag reports a fully covered line as only partially covered or not covered. (#253, thanks @andrewgazelka)

0.5.13 - 2023-04-03

  • Fix an issue where --codecov flag doesn't exclude files that should be excluded from the report. (#251)

0.5.12 - 2023-04-02

  • Add --codecov flag to support "Codecov Custom Coverage" format. This allows using region coverage on Codecov. (#249, thanks @andrewgazelka)

0.5.11 - 2023-02-28

  • Remove dependency on tempfile.

0.5.10 - 2023-02-23

  • Update lexopt to 0.3.

  • Update cargo-config2 to 0.1.5.

0.5.9 - 2023-01-15

  • Support trybuild 1.0.76+. (#238)

0.5.8 - 2023-01-15

  • Fix handling of cases where the target directory contains glob characters.

0.5.7 - 2023-01-11

  • Fix "cannot satisfy dependencies so std only shows up once" error on cargo llvm-cov nextest introduced in 0.5.4.

0.5.6 - 2023-01-11

  • Distribute prebuilt macOS universal binary.

0.5.5 - 2023-01-10

  • Fix regression on doctests introduced in 0.5.4.

0.5.4 - 2023-01-09

  • Use cargo-config2 to load Cargo configuration. (#237)

    This brings the following improvements:

    • More accurate cargo configuration loading and resolution.
    • Fix installation failure on Rust 1.60 and 1.61 by removing dependency on target-spec.
    • Remove run-time dependency on unstable cargo config get. (Previously, this command was used in a form allowing failure, like rust-analyzer does.)

0.5.3 - 2022-12-15

  • Fix an issue where coverage of binary targets containing hyphens was not collected correctly. (#232)

  • Fix help messages for cargo llvm-cov report subcommand.

0.5.2 - 2022-11-27

  • Fix an issue where if --cobertura and --output-path are used simultaneously, then the saved file doesn't contain the cobertura-style output. (#228, thanks @yuval-nextsilicon)

0.5.1 - 2022-11-27

  • Add --cobertura flag to support Cobertura's XML report format. (#224, thanks @mike-kfed)

  • Limit the number of test threads for nextest to work around rust-lang/rust#91092. (#223)

    For subcommands other than cargo llvm-cov nextest, the same workaround has already been applied since 0.4.6.

  • Replace atty with is-terminal. (#226)

0.5.0 - 2022-09-10

  • Improve handling of cases where llvm-tools-preview component is not installed. (#219)

    TL;DR: You no longer need to install llvm-tools-preview before running cargo-llvm-cov in most cases.

    The new logic is based on the logic used by Miri when rust-src component or xargo is not installed.

    See #219 for more.

  • Fix various CLI-related bugs. (#197, #217)

    This fixes various bugs related to subcommands (especially nextest). The following is a partial list:

    • Fix errors for nextest-specific options. (#151, #144, #213, etc.)
    • Fix problems where some options were ignored in cargo llvm-cov run and cargo llvm-cov nextest subcommands. (#151, #144, #198, etc.)
    • Fix help messages for subcommands.

  • Add cargo llvm-cov report subcommand. (#217) This is equivalent to cargo llvm-cov --no-run, but it has a more obvious name and better diagnostics.

  • Add cargo llvm-cov test subcommand. (#217) This is equivalent to cargo llvm-cov without subcommand, except that test name filtering is supported.

  • Deprecate --no-run in favor of cargo llvm-cov report subcommand. (#217)

  • Add --no-clean flag to build without cleaning any old build artifacts. See #214 for more.

  • cargo-llvm-cov no longer redirects output from stdout to stderr if unnecessary. (#206)

  • Support shared target directory. (#215)

  • Support --keep-going (unstable), --ignore-rust-version. (#217)

  • Support --exclude-from-report and --ignore-run-fail for cargo llvm-cov run. (#217)

  • Support relative path in CARGO_LLVM_COV_TARGET_DIR. (#220)

  • Add LLVM_COV_FLAGS/LLVM_PROFDATA_FLAGS environment variables to pass additional flags to llvm-cov/llvm-profdata in a space-separated list. (#220)

  • Deprecate CARGO_LLVM_COV_FLAGS/CARGO_LLVM_PROFDATA_FLAGS environment variables instead of LLVM_COV_FLAGS/LLVM_PROFDATA_FLAGS environment variables. (#220)

  • Document environment variables that cargo-llvm-cov reads. (#220)

  • Remove cargo llvm-cov help subcommand that was added automatically by clap. (#197)

  • cargo-llvm-cov no longer maps the --jobs (-j) option to llvm-cov/llvm-profdata's -num-threads option.

    This is to avoid confusion when using the -j option with nextest, which uses the -j option in a different sense than cargo.

  • Improve compile time. (#197)

  • Diagnostics improvements.

0.4.14 - 2022-08-06

  • Fix an issue where "File name or extension is too long" error occurs in Windows. (#203, thanks @messense)

0.4.13 - 2022-08-01

  • Fix an issue where merging of multiple cargo llvm-cov run coverage did not work.

0.4.12 - 2022-07-30

  • Support target.<cfg>.rustflags. (#200)

  • Remove workaround for an old rustc bug on Windows if unnecessary. (#199, thanks @ldm0)

0.4.11 - 2022-07-20

  • Fix handling of existing CFLAGS/CXXFLAGS when --include-ffi flag is passed. (#196)

0.4.10 - 2022-07-18

  • Support coverage of C/C++ code linked to Rust library/binary. (#194)

0.4.9 - 2022-07-07

  • Fix an issue where some files were incorrectly ignored in reports. (#191)

0.4.8 - 2022-06-16

  • Correctly escape regular expressions passed to -ignore-filename-regex. (#188, thanks @rhysd)

0.4.7 - 2022-06-13

  • Pin clap to 3.1. (#185)

0.4.6 - 2022-06-13

  • Improve --show-missing-lines for multiple functions in a single line. (#183, thanks @vmiklos)

  • Limit the number of test threads to work around rust-lang/rust#91092. (#184)

0.4.5 - 2022-06-02

  • Fix handling of RUSTC_WRAPPER, RUSTC, and similar environment variables and configs. (#180)

  • Distribute prebuilt binaries for AArch64 macOS. (#179)

0.4.4 - 2022-05-30

  • Add --fail-uncovered-{lines,regions,functions} options to set the exit code based on uncovered {lines,regions,functions}. (#173)

  • Add --ignore-run-fail option to generate coverage even if tests fail. (#174)

0.4.3 - 2022-05-29

  • Fix metadata for cargo binstall. (#176)

0.4.2 - 2022-05-29

  • Add metadata for cargo binstall. (#175, thanks @vmiklos)

0.4.1 - 2022-05-24

  • Add --coverage-target-only flag to use rustflags only for target. (#167, thanks @haraldh)

0.4.0 - 2022-05-12

  • cargo-llvm-cov no longer changes the current directory when running cargo. (#161)

  • Exclude build script from report by default. (#163) You can use --include-build-script flag to include build script in report.

  • Set cfg(coverage_nightly) when nightly compiler is used. (#164)

  • Support short flags of --release (-r) and --features (-F). (#165)

  • Support custom profiles. (#166)

0.3.3 - 2022-05-06

  • Fix an issue where codes in the target directory are not being properly excluded from reports when using show-env subcommand. (#156)

0.3.2 - 2022-05-05

  • Alleviate an issue where "File name or extension is too long" error occurs in Windows. (#155)

0.3.1 - 2022-05-01

  • Calculate --show-missing-lines based on function regions. (#150, thanks @vmiklos)

0.3.0 - 2022-04-08

  • cargo-llvm-cov now always select the current toolchain. (#148)

    Previously, if -C instrument-coverage is not available in the current toolchain, the nightly toolchain was used. (See release note of 0.2.0 for more information on the previous behavior.)

  • Make --remap-path-prefix optional. (#141)

    Previously this flag was always used, but due to some bugs discovered we decided to disable it by default. If you were dependent on the behavior provided by this flag, you can use the same behavior by passing the --remap-path-prefix flag to cargo-llvm-cov.

  • Stabilize a few unstable options.

0.2.4 - 2022-03-18

  • Add support for nextest. (#144, thanks @skyzh)

0.2.3 - 2022-03-05

  • Add --show-missing-lines option to show uncovered lines in the command-line output. (#143, thanks @vmiklos)

0.2.2 - 2022-03-01

  • Add --fail-under-lines option to set the exit code based on coverage percentage. (#139, thanks @vmiklos)

0.2.1 - 2022-02-18

  • Update clap to 3.1. (#136)

0.2.0 - 2022-02-06

  • Update to stabilized -C instrument-coverage. (#130)

    Support for -Z instrument-coverage in the old nightly will also be kept for compatibility.

    Compatibility Note: In 0.2, if -C instrument-coverage or -Z instrument-coverage is not available in the default toolchain, running cargo llvm-cov will find and use nightly (this is almost the same behavior as 0.1). This behavior is necessary because only the recent nightly currently supports -C instrument-coverage (and also for compatibility with 0.1). This behavior will be changed in 0.3 to always select the default toolchain. If you are likely to be affected by the change in 0.3, cargo-llvm-cov will emit a warning. 0.3 is planned to be released after -C instrument-coverage is available in the stable toolchain.

  • Remove support of multiple values in --package and --exclude. (#133)

    This behavior was unintentionally enabled in the older version of 0.1 and was deprecated in the recent version of 0.1.

  • Add --exclude-from-test option to exclude specific packages from the test but not from the report. (#131)

  • Add --exclude-from-report option to exclude specific packages from the report but not from the test. (#131)

  • Workspace members are now always included in the report unless specified by --exclude or --exclude-from-report. (#131)

0.1.16 - 2022-01-21

  • Alleviate an issue where "File name or extension is too long" error occurs in Windows. (#126, thanks @aganders3)

  • Re-enable multiple values for --package and --exclude. (#127, thanks @aganders3)

    This behavior was unintentionally enabled in older versions and disabled in recent versions.

    We will support this again in 0.1.x for compatibility, but will remove it in 0.2.x.

  • Distribute prebuilt binaries for AArch64 Linux (gnu and musl).

0.1.15 - 2022-01-06

  • Fix bug in show-env subcommand. (#121)

0.1.14 - 2022-01-06

  • Add show-env subcommand. (#115, thanks @davidhewitt)

  • cargo-llvm-cov no longer sets CARGO_TARGET_DIR. (#112, thanks @smoelius)

  • cargo-llvm-cov can now properly exclude arbitrary CARGO_HOME and RUSTUP_HOME from reports.

0.1.13 - 2021-12-14

  • Support custom-built rust toolchain. (#111, thanks @tofay)

0.1.12 - 2021-11-15

  • Exclude CARGO_HOME and RUSTUP_HOME used in the official rust docker image from reports. (#105)

0.1.11 - 2021-11-13

0.1.10 - 2021-10-24

  • Fix a compatibility issue with cc. (#98)

0.1.9 - 2021-10-13

  • Distribute statically linked binary on Windows MSVC. (#95)

0.1.8 - 2021-10-04

  • Fix an issue where some files were incorrectly ignored in reports. (#94, thanks @larsluthman)

0.1.7 - 2021-09-19

  • Add --failure-mode option. (#91, thanks @smoelius)

0.1.6 - 2021-09-03

  • Add cargo llvm-cov run subcommand to get coverage of cargo run. (#89)

0.1.5 - 2021-09-01

  • Add --workspace flag to cargo llvm-cov clean subcommand. (#85)

  • Fix bug around artifact cleanup. (#85)

0.1.4 - 2021-08-29

  • Improve heuristics around artifact cleanup. (#79) This removes the need to recompile dependencies in most cases.

  • Fix an issue where --package option could not handle package specifications containing the version such as futures:0.3.16. (#80)

0.1.3 - 2021-08-26

  • Add --verbose option to cargo llvm-cov clean subcommand. (#75)

  • Fix regressions introduced in 0.1.2. (#74, #76)

0.1.2 - 2021-08-26

Note: This release has been yanked due to regressions fixed in 0.1.3.

  • Set cfg(coverage) to easily use #[no_coverage]. (#72)

  • Add --quiet, --doc, and --jobs options. (#70)

  • Add cargo llvm-cov clean subcommand. (#73)

0.1.1 - 2021-08-25

  • Add --lib, --bin, --bins, --example, --examples, --test, --tests, --bench, --benches, --all-targets, --profile, and --offline options. (#67)

  • Respect BROWSER environment variable and doc.browser cargo config. (#66)

0.1.0 - 2021-08-15

  • Update clap to fix build error. (#59)

  • Support latest version of trybuild. (#54)

  • Change output directory of --html and --open options from target/llvm-cov to target/llvm-cov/html. (#62)

  • You can now merge the coverages generated under different test conditions by using --no-report and --no-run. (#55)

    cargo clean
cargo llvm-cov --no-report --features a
cargo llvm-cov --no-report --features b
cargo llvm-cov --no-run --lcov

  • Add environment variables to pass additional flags to llvm-cov/llvm-profdata. (#58)

    • CARGO_LLVM_COV_FLAGS to pass additional flags to llvm-cov. (value: space-separated list)
    • CARGO_LLVM_PROFDATA_FLAGS to pass additional flags to llvm-profdata. (value: space-separated list)

  • Fix "Failed to load coverage" error when together used with trybuild. (#49)

  • Fix bug in --exclude and --package options. (#56)

  • Fix bug in color-detection when both --text and --output-dir used. (#62)

  • --html and --open options no longer outputs a summary at the same time. (#61)

  • Respect rustflags and rustdocflags set by cargo config file. (#52)

  • Diagnostic improvements.

0.1.0-alpha.5 - 2021-08-07

  • Support Windows. (#41)

  • Support trybuild. (#44)

  • Fix mapping error in --doctests option. (#40)

  • Fix bug in --target option. (#46)

  • Add --package option. (#42)

0.1.0-alpha.4 - 2021-06-13

  • cargo-llvm-cov no longer requires rustfilt. (#29)

  • Acknowledge that procedural macros are supported. (#27)

  • Fix support of testing binary crate. (#23)

  • Fix an issue where git dependencies were displayed in the coverage report. (#19)

  • Fix an issue where path dependencies that not included in the workspace were displayed in coverage report. (#25)

  • Fix bug in --exclude option. (#30)

  • Fix several bugs.

  • Add --output-path option to specify a file to write coverage data into. (#18)

  • Add --ignore-filename-regex option to skip specified source code files from coverage report. (#19)

  • Add --color option. (#15)

  • Add --no-fail-fast, --frozen, and --locked option. (#16)

  • Add --verbose flag. (#19)

  • Improve diagnostics when the required tools are not installed. (#17)

0.1.0-alpha.3 - 2021-06-04

  • cargo-llvm-cov no longer requires cargo-binutils. (#11)

  • --json flag now exports all coverage data by default. (#9) If you want to get only summary information, use --summary-only flag together.

  • Enable --html flag automatically when --open flag is passed. (#5)

  • Add --lcov flag for exporting coverage data in "lcov" format. (#9)

  • Add --output-dir flag for specifying a directory to write coverage reports generated by --html or --text flag. (#9)

  • Fix a bug in cargo version detection. (#7)

  • Fix an issue where llvm-cov's auto-detection of color output doesn't work. (#11)

  • Fix several bugs.

  • Documentation improvements.

0.1.0-alpha.2 - 2021-02-12

  • Add --text option to output full report in plain text. (#3, thanks @romac)

0.1.0-alpha.1 - 2021-01-23

Initial release