From d13f51c291813fc9ce74964957defdbd34c41edf Mon Sep 17 00:00:00 2001
From: Igor Pecovnik <igor@armbian.com>
Date: Tue, 24 Sep 2024 12:03:06 +0200
Subject: [PATCH] Lint only changed files

---
 .github/workflows/lint.yml | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index e3a430b3..423f5b3a 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -20,6 +20,16 @@ jobs:
        - name: Checkout repository
          uses: actions/checkout@v3
 
+       - name: Get changed files
+         id: changed-files
+         uses: tj-actions/changed-files@v43
+
+       - name: "Show which files we check"
+         shell: bash {0}
+         run: |
+           echo "# Checked files:" >> $GITHUB_STEP_SUMMARY
+           echo "${{ steps.changed-files.outputs.all_changed_files }}" | sed "s/ /\n/g" >> $GITHUB_STEP_SUMMARY
+
        - name: Environment variables
          run: sudo -E bash -c set
 
@@ -27,9 +37,19 @@ jobs:
          shell: bash {0}
          run: |
 
-           for file in $(find . -name "*.sh" ! -path '*/.git*/*' -exec grep -Iq . {} \; -print); do
-               if grep -qE "^#\!/.*bash" $file; then
-                   shellcheck --severity=error $file || ret=$?
-               fi
-           done
+           if [[ -n "${{ steps.changed-files.outputs.all_changed_files }}" ]]; then
+               FILES="${{ steps.changed-files.outputs.all_changed_files }}"
+               for file in $FILES; do
+                   if grep -qE "^#\!/.*bash" $file; then
+                       shellcheck --severity=error $file || ret=$?
+                   fi
+               done
+           else
+               FILES="$(find . -name "*.sh" ! -path '*/.git*/*' -exec grep -Iq . {} \; -print)"
+               for file in $FILES; do
+                   if grep -qE "^#\!/.*bash" $file; then
+                       shellcheck --severity=error $file || ret=$?
+                   fi
+               done
+           fi
            exit $ret