From 22627e100059b090adaf2484a09db2d5568492ce Mon Sep 17 00:00:00 2001
From: Damien Retzinger <damienwebdev@gmail.com>
Date: Sun, 10 May 2026 13:30:54 -0400
Subject: [PATCH] feat(setup-magento): prevent Magento dir from being mirrored
 into vendor

---
 .github/workflows/check-extension.yaml | 24 ------------------------
 setup-magento/action.yml               | 16 ++++++++++++++++
 2 files changed, 16 insertions(+), 24 deletions(-)

diff --git a/.github/workflows/check-extension.yaml b/.github/workflows/check-extension.yaml
index 1631ecb..1e25328 100644
--- a/.github/workflows/check-extension.yaml
+++ b/.github/workflows/check-extension.yaml
@@ -68,14 +68,6 @@ jobs:
           id: package
           run: echo "name=$(jq -r .name ${{ github.workspace }}/${{ inputs.path }}/composer.json)" >> $GITHUB_OUTPUT
 
-        - name: Exclude store dir from path-repo copy
-          shell: bash
-          run: |
-            EXT_COMPOSER="${{ github.workspace }}/${{ inputs.path }}/composer.json"
-            tmp="$(mktemp)"
-            jq '.archive.exclude = ((.archive.exclude // []) + ["/_ghamagento"] | unique)' "$EXT_COMPOSER" > "$tmp"
-            mv "$tmp" "$EXT_COMPOSER"
-
         - name: Require extension
           working-directory: ${{ steps.setup-magento.outputs.path }}
           run: composer require "${{ steps.package.outputs.name }}:@dev" --no-install
@@ -141,14 +133,6 @@ jobs:
           id: package
           run: echo "name=$(jq -r .name ${{ github.workspace }}/${{ inputs.path }}/composer.json)" >> $GITHUB_OUTPUT
 
-        - name: Exclude store dir from path-repo copy
-          shell: bash
-          run: |
-            EXT_COMPOSER="${{ github.workspace }}/${{ inputs.path }}/composer.json"
-            tmp="$(mktemp)"
-            jq '.archive.exclude = ((.archive.exclude // []) + ["/_ghamagento"] | unique)' "$EXT_COMPOSER" > "$tmp"
-            mv "$tmp" "$EXT_COMPOSER"
-
         - name: Require extension
           working-directory: ${{ steps.setup-magento.outputs.path }}
           run: composer require "${{ steps.package.outputs.name }}:@dev" --no-install
@@ -225,14 +209,6 @@ jobs:
         id: package
         run: echo "name=$(jq -r .name ${{ github.workspace }}/${{ inputs.path }}/composer.json)" >> $GITHUB_OUTPUT
 
-      - name: Exclude store dir from path-repo copy
-        shell: bash
-        run: |
-          EXT_COMPOSER="${{ github.workspace }}/${{ inputs.path }}/composer.json"
-          tmp="$(mktemp)"
-          jq '.archive.exclude = ((.archive.exclude // []) + ["/_ghamagento"] | unique)' "$EXT_COMPOSER" > "$tmp"
-          mv "$tmp" "$EXT_COMPOSER"
-
       - name: Require extension
         working-directory: ${{ steps.setup-magento.outputs.path }}
         run: composer require "${{ steps.package.outputs.name }}:@dev" --no-install
diff --git a/setup-magento/action.yml b/setup-magento/action.yml
index 4a10029..be00909 100644
--- a/setup-magento/action.yml
+++ b/setup-magento/action.yml
@@ -95,6 +95,22 @@ runs:
       name: Ensure app/etc exists for magento composer plugin
       if: inputs.mode == 'extension'
 
+    - name: Prevent Magento install from being mirrored into consumer vendor
+      if: inputs.mode == 'extension'
+      shell: bash
+      working-directory: ${{ inputs.working-directory }}
+      env:
+        MAGENTO_DIRECTORY: ${{ steps.setup-magento-compute-directory.outputs.MAGENTO_DIRECTORY }}
+      run: |
+        line="/$MAGENTO_DIRECTORY export-ignore"
+        if [[ -f .gitattributes ]] && grep -qxF "$line" .gitattributes; then
+          exit 0
+        fi
+        if [[ -s .gitattributes && -n "$(tail -c1 .gitattributes)" ]]; then
+          printf '\n' >> .gitattributes
+        fi
+        printf '%s\n' "$line" >> .gitattributes
+
     - uses: graycoreio/github-actions-magento2/fix-magento-install@main
       name: Fix Magento Out of Box Install Issues
       with: