# [1.0.0-beta.6](https://git.gitlab.arm.com/bazel/rules_tar/compare/v1.0.0-beta.5...v1.0.0-beta.6) (2025-01-09)

### Bug Fixes

* switch to `//tar/tool` ([398aba37](https://git.gitlab.arm.com/bazel/rules_tar/commit/398aba37d3957f6d7cf84bc8fb2aa72ce603c6da))

### Features

* add `//tar/tool` ([dd68a659](https://git.gitlab.arm.com/bazel/rules_tar/commit/dd68a659de2ca27a26ecb6c685a437e7d9c9357c))

### BREAKING CHANGES

* `tar_filter#patterns` is now a list of globs to remove
from the tape archive. The filters can still be negated:

```py
tar_filter(
    name = "filter.tar.xz",
    src = "archive.tar.zst",
    patterns = [
        "!**/*.md",  # Keep Markdown files
        "**/*",      # Remove all other members
    ],
)
```

These were used to test projects before they were upstreamed to BCR.

We can remove them now.

Changes both `tar_filter`/`tar_concatenate` to use `//tar/tool` rather
than individidual toolchains.

This change brings significant features:

  - Inputs are transparently decompressed using file magic markers
    - Data on `stdin` is decompressed correctly now
  - Outputs are trasparently compressed using the file extension
  - (De)compression is all performed in-process removing the need for Shell pipes
  - Many bug fixes are squashed during the refactor in the Go code

A huge footgun has been removed where the extension were not respected:

```py
# Without the `compress` attribute, this creates a `archive.tar.gz` that
# is actually a tape archive that is _not_ compressed
tar_concatenate(
    name = "archive.tar.gz",
    # compress = "@rules_tar//tar/compress:gzip",
    srcs = ["archive.tar.xz", "something.tar.gz"],
)
# With this patch it is now correctly compressed with `gzip`
```

BREAKING CHANGE: `tar_filter#patterns` is now a list of globs to remove
from the tape archive. The filters can still be negated:

```py
tar_filter(
    name = "filter.tar.xz",
    src = "archive.tar.zst",
    patterns = [
        "!**/*.md",  # Keep Markdown files
        "**/*",      # Remove all other members
    ],
)
```

A generic Go binary that provides concatenation and filtering
of tape archives.

API to seek until the start of the next tape archive in a
stream of bytes.

Provides glob matching for multiple patterns.

Provides a `duplicate.Flag` implementation to determine what to do
with duplicate members.

Provides `WriteCloser` interface for output files with
transparent decompression.

Provides `ReadCloser` interface for input files with
transparent decompression.

Provides `ReadCloser` interfaces to decompress incoming data.

Determines the correct decompression algorithm by reading the file
magic markers in the incoming data.

Provides `WriteCloser` wrappers that compress the written data.

Can determine the compression needed from the file extension _or_
can start a subprocess that performs the compression.

# [1.0.0-beta.5](https://git.gitlab.arm.com/bazel/rules_tar/compare/v1.0.0-beta.4...v1.0.0-beta.5) (2024-11-27)

### Bug Fixes

* update dependencies for Bazel 8 support ([b63af075](https://git.gitlab.arm.com/bazel/rules_tar/commit/b63af075c61cbc4659bc0da1c898968e96ceb861))

When using `3.1.1` and Bazel `8.0.0rc4` the toolchains do not get registered.

This is due to an upstream [issue] that was resolved with a [PR] to disable the
default registration in this [commit].

To upgrade past `3.1.0`, we will need to register specific toolchains.

[issue]: https://github.com/uber/hermetic_cc_toolchain/issues/181
[pr]: https://github.com/uber/hermetic_cc_toolchain/pull/190
[commit]: https://github.com/uber/hermetic_cc_toolchain/commit/f8c17de30fbf185cc5c2f61b2b508aa3b3d294a1

Includes breaking change to `toolchain_local_select` which
does not affect this module but is a needed updated for Bazel 8

# [1.0.0-beta.4](https://git.gitlab.arm.com/bazel/rules_tar/compare/v1.0.0-beta.3...v1.0.0-beta.4) (2024-09-05)

### Features

* **toolchains:** switch to using toolchains for compression ([aab887e1](https://git.gitlab.arm.com/bazel/rules_tar/commit/aab887e14a76a370d7db22f4d6fa70e7c9c0fde3))

Allows projects to customise the compressor used with toolchains.

This is especially useful with the built toolchains:

```
--extra_toolchains=@rules_zstd//zstd/toolchain/zstd:built
```

# [1.0.0-beta.3](https://git.gitlab.arm.com/bazel/rules_tar/compare/v1.0.0-beta.2...v1.0.0-beta.3) (2024-09-05)

### Bug Fixes

* **concatenate:** log header read error ([0aa6a7c7](https://git.gitlab.arm.com/bazel/rules_tar/commit/0aa6a7c7a041eeb7d086abd1e37913b0f9b3bc21))

### Features

* add `tar_filter` rule ([271a34cb](https://git.gitlab.arm.com/bazel/rules_tar/commit/271a34cb528fcfa7ae9cd308bd4fa2914bfe4ec9))

# [1.0.0-beta.2](https://git.gitlab.arm.com/bazel/rules_tar/compare/v1.0.0-beta.1...v1.0.0-beta.2) (2024-08-30)

### Bug Fixes

* **ape:** switch to `@ape//ape/toolchain/info:tar` ([3fbb5641](https://git.gitlab.arm.com/bazel/rules_tar/commit/3fbb564107565ff8f55a3f14a67f3d0a5e4de672))
* **concatenate:** build pure Go ([dd5e64d0](https://git.gitlab.arm.com/bazel/rules_tar/commit/dd5e64d06e3d6e006181b6e07096c13765ca3853))
* **concatenate:** run under hermetic Bash ([11b53135](https://git.gitlab.arm.com/bazel/rules_tar/commit/11b531355577a9cdd727749160671c398c57ea17))

### Features

* add `//tar/concatenate` target ([6ebc7cfa](https://git.gitlab.arm.com/bazel/rules_tar/commit/6ebc7cfa600cbc22eb90c64512af3204a9d60634))
* add `//tar/concatenate` target ([43b780b3](https://git.gitlab.arm.com/bazel/rules_tar/commit/43b780b31c78ae36233db6d13b7ec52cd631e041))
* add `concatenate` toolchain ([6817c555](https://git.gitlab.arm.com/bazel/rules_tar/commit/6817c5550b1725729053b3caa970554aabf0baea))
* **concatenate:** duplicate handling ([e0f4f739](https://git.gitlab.arm.com/bazel/rules_tar/commit/e0f4f739600ad540bf0b06bf510d0594092f15fc))

Avoids need for C/C++ compilation.