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Add strip_components to extract/download_and_extract `http_arch…#29281

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Add strip_components to extract/download_and_extract `http_arch…#29281
willstranton wants to merge 1 commit intobazelbuild:masterfrom
willstranton:strip

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Add strip_components to extract/download_and_extract http_archive

Description

The strip_components attribute functions similar to tar --strip-components:

Strip NUMBER leading components from file names on extraction.

This is an alternative to the existing strip_prefix attribute, which required knowing the exact prefix to be stripped. Only one of the two attributes (strip_prefix, strip_components) can be set at one time.

Motivation

See #28879

Build API Changes

  1. Has this been discussed in a design doc or issue? (Please link it)

See #28879

  1. Is the change backward compatible?

Yes

  1. If it's a breaking change, what is the migration plan?

N/A - this is not a breaking change.

Checklist

  • I have added tests for the new use cases (if any).
  • I have updated the documentation (if applicable).

Release Notes

RELNOTES[NEW]: Adds the strip_components attribute to extract/download_and_extract/http_archive to allow stripping of path components when extracting files.

…ive`

The `strip_components` attribute functions similar to tar --strip-components:

> Strip NUMBER leading components from file names on extraction.

This is an alternative to the existing `strip_prefix` attribute, which required
knowing the exact prefix to be stripped. Only one of the two attributes
(`strip_prefix`, `strip_components`) can be set at one time.

Fixes bazelbuild#28879

RELNOTES[NEW]: Adds the `strip_components` attribute to `extract`/`download_and_extract`/`http_archive` to allow stripping of path components when extracting files.
@willstranton willstranton marked this pull request as ready for review April 13, 2026 22:12
@github-actions github-actions bot added team-ExternalDeps External dependency handling, remote repositiories, WORKSPACE file. team-Core Skyframe, bazel query, BEP, options parsing, bazelrc awaiting-review PR is awaiting review from an assigned reviewer labels Apr 13, 2026
@meteorcloudy
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which required knowing the exact prefix to be stripped.

If the source archive URL is deterministic, the exact prefix should be known?

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awaiting-review PR is awaiting review from an assigned reviewer team-Core Skyframe, bazel query, BEP, options parsing, bazelrc team-ExternalDeps External dependency handling, remote repositiories, WORKSPACE file.

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