bazel-diff

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  "desc": "Performs Bazel Target Diffing between two revisions in Git",
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  "enrichment_fetched_at": "2026-06-20T23:35:47+00:00",
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  "github_readme_excerpt": "# bazel-diff\n\n[![Build status](https://github.com/Tinder/bazel-diff/actions/workflows/ci.yaml/badge.svg?branch=master)](https://github.com/Tinder/bazel-diff/actions/workflows/ci.yaml)\n[![Coverage](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/Tinder/bazel-diff/master/coverage.json)](https://github.com/Tinder/bazel-diff/actions/workflows/ci.yaml)\n\n`bazel-diff` is a command line tool for Bazel projects that allows users to determine the exact affected set of impacted targets between two Git revisions. Using this set, users can test or build the exact modified set of targets.\n\n`bazel-diff` offers several key advantages over rolling your own target diffing solution\n\n1. `bazel-diff` is designed for very large Bazel projects. We use Java Protobuf\u0027s `parseDelimitedFrom` method alongside Bazel Query\u0027s `streamed_proto` output option. These two together allow you to parse Gigabyte or larger protobuf messages. We have tested it with projects containing tens of thousands of targets.\n2. We avoid usage of large command line query lists when interacting with Bazel, [issue here](https://github.com/bazelbuild/bazel/issues/8609). When you interact with Bazel with thousands of query parameters you can reach an upper maximum limit, seeing this error `bash: /usr/local/bin/bazel: Argument list too long`. `bazel-diff` is smart enough to avoid these errors.\n3. `bazel-diff` has been tested with file renames, deletions, and modifications. Works on `bzl` files, `WORKSPACE` files, `BUILD` files and regular files\n\nTrack the feature request for target diffing in Bazel [here](https://github.com/bazelbuild/bazel/issues/7962)\n\nThis approach was inspired by the [following BazelConf talk](https://www.youtube.com/watch?v=9Dk7mtIm7_A) by Benjamin Peterson.\n\n\u003e There are simpler and faster ways to approximate the affected set of targets.\n\u003e However an incorrect solution can result in a system you can\u0027t trust,\n\u003e because tests could be broken at a commit where you didn\u0027t select to ru",
  "github_repo": "Tinder/bazel-diff",
  "github_stars": 510,
  "github_topics": [
    "bazel",
    "target-selection",
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  "homepage": "https://github.com/Tinder/bazel-diff/",
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  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "BSD-3-Clause",
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  "name": "bazel-diff",
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  "ruby_source_path": "Formula/b/bazel-diff.rb",
  "tap": "homebrew/core",
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  "version_stable": "27.0.0",
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