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Add auto-labeling workflow for PRs based on changed paths #1818

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Add auto-labeling workflow for PRs based on changed paths #1818

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d898576
Add labeler config for auto-labeling PRs by path
leofang Mar 25, 2026
530e852
Add auto-label workflow using actions/labeler v6
leofang Mar 25, 2026
42d5e5c
Add ci/ folder to CI/CD label mapping
leofang Mar 25, 2026
cf63f32
Add SPDX header to labeler.yml to fix pre-commit check
leofang Mar 25, 2026
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24 changes: 24 additions & 0 deletions .github/labeler.yml
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# SPDX-FileCopyrightText: Copyright (c) 2024-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# SPDX-License-Identifier: Apache-2.0

# Configuration for actions/labeler
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@mdboom mdboom Mar 25, 2026

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Maybe include a link to the actions/labeler project docs?

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@rwgk rwgk Mar 25, 2026

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+1

# Auto-applies labels based on which files a PR changes.

cuda.bindings:
- changed-files:
- any-glob-to-any-file: 'cuda_bindings/**'

cuda.core:
- changed-files:
- any-glob-to-any-file: 'cuda_core/**'

cuda.pathfinder:
- changed-files:
- any-glob-to-any-file: 'cuda_pathfinder/**'

CI/CD:
- changed-files:
- any-glob-to-any-file:
- '.github/**'
- 'ci/**'
23 changes: 23 additions & 0 deletions .github/workflows/pr-auto-label.yml
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# SPDX-FileCopyrightText: Copyright (c) 2024-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# SPDX-License-Identifier: Apache-2.0

name: "CI: Auto-label PRs by path"

on:
pull_request_target:
types:
- opened
- synchronize

jobs:
auto-label:
name: Auto-label by changed paths
if: github.repository_owner == 'NVIDIA'
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@cpcloud cpcloud Mar 25, 2026

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The only time this would be false is on a fork, but who cares about that? If someone wants to label PRs on their fork, that doesn't affect anything in this repo, and who are we to prevent someone from labeling PRs on their fork?

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@rwgk rwgk Mar 25, 2026

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It's really just "don't bother running this where it doesn't apply." The guard just avoids running automation that would likely fail or be meaningless on forks, but it doesn't actively prevent anything. Seems like a good default to me.

runs-on: ubuntu-latest
permissions:
contents: read
pull-requests: write
steps:
- name: Apply labels
uses: actions/labeler@634933edcd8ababfe52f92936142cc22ac488b1b # v6.0.1