Ownership is measured by how many commits each author made to each file in the current tree. It highlights bus-factor risk (files only one person has ever touched) and where knowledge is concentrated. The bus factor is the smallest number of people who are, between them, primary owner of more than half of the files.
Files only one author has ever changed. The more a file has changed, the more knowledge is at risk if that person leaves.
| File | Sole owner | Commits |
|---|---|---|
| src/sema/check/mod.rs | Jarred Sumner | 19 |
| test/cli/check/differential-cases.json | Jarred Sumner | 19 |
| src/sema/check/shape.rs | Jarred Sumner | 17 |
| src/sema/check/relate.rs | Jarred Sumner | 15 |
| src/sema/types.rs | Jarred Sumner | 14 |
| src/sema/check/check_source_file.rs | Jarred Sumner | 14 |
| src/sema/driver/lib.rs | Jarred Sumner | 14 |
| src/sema/check/mapped.rs | Jarred Sumner | 13 |
| src/sema/check/expr.rs | Jarred Sumner | 13 |
| src/sema/check/flow.rs | Jarred Sumner | 13 |
| File | Sole owner | Commits |
|---|---|---|
| src/sema/check/mod.rs | Jarred Sumner | 19 |
| test/cli/check/differential-cases.json | Jarred Sumner | 19 |
| src/sema/check/shape.rs | Jarred Sumner | 17 |
| src/sema/check/relate.rs | Jarred Sumner | 15 |
| src/sema/types.rs | Jarred Sumner | 14 |
| src/sema/check/check_source_file.rs | Jarred Sumner | 14 |
| src/sema/driver/lib.rs | Jarred Sumner | 14 |
| src/sema/check/mapped.rs | Jarred Sumner | 13 |
| src/sema/check/expr.rs | Jarred Sumner | 13 |
| src/sema/check/flow.rs | Jarred Sumner | 13 |
| src/sema/program.rs | Jarred Sumner | 13 |
| src/sema/resolve.rs | Jarred Sumner | 13 |
| test/cli/lint/lint.test.ts | Jarred Sumner | 12 |
| src/codegen/bindgen-emit.ts | Dylan Conway | 11 |
| src/install/isolated_install/Symlinker.rs | Jarred Sumner | 11 |
| src/format/CLAUDE.md | Jarred Sumner | 11 |
| src/sema/bind/binder.rs | Jarred Sumner | 11 |
| src/sema/check/call.rs | Jarred Sumner | 11 |
| src/sema/check/context.rs | Jarred Sumner | 11 |
| src/sema/check/instantiate.rs | Jarred Sumner | 11 |
| src/sema/check/sink.rs | Jarred Sumner | 11 |
| src/sema/hir.rs | Jarred Sumner | 11 |
| test/cli/format/format.test.ts | Jarred Sumner | 11 |
| .cursor/environment.json | Jarred Sumner | 11 |
| src/sema/check/print.rs | Jarred Sumner | 10 |
| src/lint/ast/mod.rs | Jarred Sumner | 10 |
| src/lint/driver/run.rs | Jarred Sumner | 10 |
| src/sema/bind/mod.rs | Jarred Sumner | 10 |
| src/sema/check/decl.rs | Jarred Sumner | 10 |
| src/sema/check/infer.rs | Jarred Sumner | 10 |
| docs/lint/index.mdx | Jarred Sumner | 9 |
| src/sema/check/errors_declaration_emit.rs | Jarred Sumner | 9 |
| src/sema/node.rs | Jarred Sumner | 9 |
| src/lint/driver/fmt/mod.rs | Jarred Sumner | 9 |
| src/lint/driver/typed.rs | Jarred Sumner | 9 |
| src/lint/linter/mod.rs | Jarred Sumner | 9 |
| src/lint/rule.rs | Jarred Sumner | 9 |
| src/sema/check/errors.rs | Jarred Sumner | 9 |
| src/sema/check/errors_modules.rs | Jarred Sumner | 9 |
| src/sema/check/errors_small.rs | Jarred Sumner | 9 |
| src/sema/standalone/main.rs | Jarred Sumner | 9 |
| test/cli/check/differential.test.ts | Jarred Sumner | 9 |
| src/install/isolated_install/Hardlinker.rs | Jarred Sumner | 9 |
| src/sql/mysql/protocol/NewWriter.rs | Jarred Sumner | 9 |
| src/css/values/gradient.rs | Jarred Sumner | 9 |
| scripts/build/ci-images/spec.ts | Dylan Conway | 8 |
| test/js/bun/yaml/yaml-test-suite.test.ts | Dylan Conway | 8 |
| src/collections/zig_hash_map.rs | Jarred Sumner | 8 |
| src/sema/parser/parser/mod.rs | Jarred Sumner | 8 |
| src/lint/driver/bunfig.rs | Jarred Sumner | 8 |
| src/lint/driver/cli.rs | Jarred Sumner | 8 |
| src/lint/driver/configs.rs | Jarred Sumner | 8 |
| src/lint/driver/fmt/config.rs | Jarred Sumner | 8 |
| src/lint/linter/config/mod.rs | Jarred Sumner | 8 |
| src/sema/baselines/lib.rs | Jarred Sumner | 8 |
| src/sema/check/errors_access.rs | Jarred Sumner | 8 |
| src/sema/check/explain_relation.rs | Jarred Sumner | 8 |
| src/sema/check/task.rs | Jarred Sumner | 8 |
| docs/guides/format/migrate-from-prettier.mdx | Jarred Sumner | 8 |
| src/bun_core/Progress.rs | Jarred Sumner | 8 |
| src/css/properties/size.rs | Jarred Sumner | 8 |
| src/ast/new_store.rs | Jarred Sumner | 8 |
| src/bundler/linker_context/convertStmtsForChunkForDevServer.rs | Jarred Sumner | 8 |
| test/cli/bake/bake.test.ts | Alistair Smith | 7 |
| src/sql/postgres/types/int_types.rs | Jarred Sumner | 7 |
| src/runtime/image/codec_webp.rs | Jarred Sumner | 7 |
| test/js/bun/util/heap-snapshot.test.ts | Jarred Sumner | 7 |
| src/format/js/print/binary_like_expression.rs | Jarred Sumner | 7 |
| src/format/options.rs | Jarred Sumner | 7 |
| src/lint/ast/expr.rs | Jarred Sumner | 7 |
| src/lint/ast/node.rs | Jarred Sumner | 7 |
| src/lint/driver/fmt/files.rs | Jarred Sumner | 7 |
| src/lint/driver/lint.rs | Jarred Sumner | 7 |
| src/lint/linter/config/flat.rs | Jarred Sumner | 7 |
| src/lint/linter/disable.rs | Jarred Sumner | 7 |
| src/lint/linter/syntax/espree/early.rs | Jarred Sumner | 7 |
| src/lint/typescript/rules/no_implied_eval.rs | Jarred Sumner | 7 |
| src/runtime/cli/format_command.rs | Jarred Sumner | 7 |
| src/sema/check/errors_assign.rs | Jarred Sumner | 7 |
| src/sema/check/errors_call.rs | Jarred Sumner | 7 |
| src/sema/check/errors_heritage.rs | Jarred Sumner | 7 |
| src/sema/check/errors_names_and_exports.rs | Jarred Sumner | 7 |
| src/sema/check/errors_unused.rs | Jarred Sumner | 7 |
| src/sema/check/unions.rs | Jarred Sumner | 7 |
| src/sema/config.rs | Jarred Sumner | 7 |
| src/sema/driver/format.rs | Jarred Sumner | 7 |
| src/sema/json.rs | Jarred Sumner | 7 |
| src/sema/parser/parser/func.rs | Jarred Sumner | 7 |
| src/sema/standalone/symbol_writer.rs | Jarred Sumner | 7 |
| src/sema/standalone/type_writer.rs | Jarred Sumner | 7 |
| test/cli/check/differential.ts | Jarred Sumner | 7 |
| test/cli/lint/native-rules.test.ts | Jarred Sumner | 7 |
| src/sql/postgres/protocol/BackendKeyData.rs | Jarred Sumner | 7 |
| src/md/helpers.rs | Jarred Sumner | 7 |
| src/css/properties/margin_padding.rs | Jarred Sumner | 7 |
| src/css/values/easing.rs | Jarred Sumner | 7 |
| src/md/autolinks.rs | Jarred Sumner | 7 |
| src/css/dependencies.rs | Jarred Sumner | 7 |
| src/css/properties/border_image.rs | Jarred Sumner | 7 |
| src/css/properties/text.rs | Jarred Sumner | 7 |
Primary owner = the author with the most commits to a file. Solely owned = files only that author has touched.
| Author | Files owned | Solely owned | Files touched |
|---|---|---|---|
| Jarred Sumner | 14,087 | 11,186 | 16,346 |
| robobun | 2,619 | 908 | 4,695 |
| Ciro Spaciari | 2,084 | 1,941 | 3,635 |
| Meghan Denny | 1,788 | 1,250 | 2,347 |
| clover caruso | 1,137 | 861 | 1,610 |
| Dylan Conway | 1,125 | 864 | 3,143 |
| 190n | 368 | 355 | 521 |
| pfg | 287 | 225 | 464 |
| Alistair Smith | 184 | 110 | 1,248 |
| Ashcon Partovi | 170 | 121 | 596 |
| Don Isaac | 167 | 139 | 306 |
| SUZUKI Sosuke | 135 | 123 | 340 |
| Michael H | 110 | 20 | 461 |
| Kai Tamkun | 106 | 70 | 201 |
| Zack Radisic | 77 | 36 | 171 |
| Lydia Hallie | 70 | 49 | 365 |
| Georgijs | 35 | 34 | 96 |
| evan | 29 | 15 | 58 |
| Samuel Attard | 27 | 25 | 68 |
| Colin McDonnell | 19 | 13 | 153 |
| John-David Dalton | 17 | 6 | 41 |
| Jérôme Benoit | 13 | 9 | 20 |
| Marko Vejnovic | 9 | 4 | 40 |
| snwy | 7 | 3 | 20 |
| jarred-sumner-bot | 7 | 2 | 16 |
Files touched by the most people — shared code where changes are most likely to need coordination.
| File | Contributors | Primary owner | Owner share |
|---|---|---|---|
| README.md | 82 | Jarred Sumner | 75.7% |
| packages/bun-types/bun.d.ts | 52 | Jarred Sumner | 34.0% |
| packages/bun-types/globals.d.ts | 32 | Jarred Sumner | 32.7% |
| packages/bun-types/test.d.ts | 27 | Jarred Sumner | 16.4% |
| CONTRIBUTING.md | 25 | Jarred Sumner | 30.9% |
| package.json | 22 | Jarred Sumner | 47.2% |
| test/js/node/http/node-http.test.ts | 22 | Ciro Spaciari | 25.0% |
| src/js/node/http.ts | 22 | Ciro Spaciari | 23.9% |
| .gitignore | 21 | Jarred Sumner | 60.2% |
| test/js/node/fs/fs.test.ts | 20 | Jarred Sumner | 34.5% |
| test/bundler/expectBundled.ts | 20 | Jarred Sumner | 30.0% |
| test/harness.ts | 19 | Jarred Sumner | 29.1% |
| test/cli/install/bun-install.test.ts | 19 | Dylan Conway | 30.2% |
| test/js/bun/http/serve.test.ts | 19 | Jarred Sumner | 30.7% |
| test/js/bun/test/expect.test.js | 19 | Jarred Sumner | 27.6% |
| completions/bun.zsh | 19 | Jarred Sumner | 47.8% |
| test/cli/install/bun-add.test.ts | 18 | Jarred Sumner | 30.9% |
| .vscode/launch.json | 17 | Jarred Sumner | 67.2% |
| test/package.json | 16 | Jarred Sumner | 24.2% |
| .vscode/settings.json | 16 | Jarred Sumner | 54.7% |
How Bun compares with other open source languages and developer tools →
How Bun ranks among open source languages and developer tools by AI-assisted commits →
Generate this report for your own repository with gitstats-action · All Gallery reports
Publishes the report to GitHub Pages on every push to main: turn on Pages for the gh-pages branch.
# .github/workflows/gitstats.yml
name: GitStats Report
on:
push:
branches: [main]
permissions:
contents: write
jobs:
gitstats:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v7
with:
fetch-depth: 0
- uses: shenxianpeng/gitstats-action@v1
with:
deploy-to-pages: true