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[PROJECT] cpp-linter action runs for all files, but linst only if relevant changed #39

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Merged
TheRedDaemon merged 1 commit into from
Jan 15, 2026
Merged

[PROJECT] cpp-linter action runs for all files, but linst only if relevant changed #39

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35 changes: 30 additions & 5 deletions .github/workflows/cpp-linter.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,8 @@ on:
pull_request:
branches: [main]
types: [opened, reopened, synchronize, ready_for_review]
paths: ['**.c', '**.cpp', '**.h', '**.hpp', '**.cxx', '**.hxx', '**.cc', '**.hh', '**CMakeLists.txt', 'meson.build', '**.cmake']
push:
branches: [main]
paths: ['**.c', '**.cpp', '**.h', '**.hpp', '**.cxx', '**.hxx', '**.cc', '**.hh', '**CMakeLists.txt', 'meson.build', '**.cmake']

jobs:
cpp-linter:
Expand All @@ -20,10 +18,31 @@ jobs:
steps:
- uses: actions/checkout@v5

# Detect if any relevant files changed
- name: Detect relevant files
id: filter
uses: dorny/paths-filter@v3
with:
filters: |
cpp:
- '**/*.c'
- '**/*.cpp'
- '**/*.h'
- '**/*.hpp'
- '**/*.cxx'
- '**/*.hxx'
- '**/*.cc'
- '**/*.hh'
- '**/CMakeLists.txt'
- 'meson.build'
- '**/*.cmake'

# ... optionally setup build env to create a compilation database

- uses: cpp-linter/cpp-linter-action@v2
- name: Run cpp-linter
id: linter
uses: cpp-linter/cpp-linter-action@v2
if: steps.filter.outputs.cpp == 'true'
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
Expand All @@ -38,6 +57,12 @@ jobs:
# disable file annotations, the thread comment should be the response
file-annotations: false

- name: Fail fast?!
if: steps.linter.outputs.checks-failed > 0
# Fail the job only if the linter ran and found issues
- name: Fail fast if linter failed
if: steps.filter.outputs.cpp == 'true' && steps.linter.outputs.checks-failed > 0
run: exit 1

# Optional: print a message if no relevant files changed
- name: Skip message
if: steps.filter.outputs.cpp != 'true'
run: echo "No relevant C/C++/CMake files changed — cpp-linter skipped"