From 733f05718c5e741028d4d59a8bd107e5f05700e6 Mon Sep 17 00:00:00 2001
From: Josh Katofsky <joshua.katofsky@mail.mcgill.ca>
Date: Sat, 14 Feb 2026 16:16:24 -0500
Subject: [PATCH 1/3] action to print disk usage

---
 .github/workflows/free-disk-space.yml | 34 +++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 .github/workflows/free-disk-space.yml

diff --git a/.github/workflows/free-disk-space.yml b/.github/workflows/free-disk-space.yml
new file mode 100644
index 00000000..d7eef6af
--- /dev/null
+++ b/.github/workflows/free-disk-space.yml
@@ -0,0 +1,34 @@
+name: Free disk space on EC2
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  free-disk:
+    runs-on: ubuntu-latest
+    steps:
+      - name: SSH in and report disk usage
+        uses: appleboy/ssh-action@master
+        with:
+          host: ${{ secrets.EC2_URL }}
+          username: 'ubuntu'
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          script: |
+            echo "=== Disk usage (df -h) ==="
+            df -h
+            echo ""
+            echo "=== Largest dirs in /home/ubuntu ==="
+            du -sh /home/ubuntu/* 2>/dev/null | sort -hr | head -20
+            echo ""
+            echo "=== Backend repo size breakdown ==="
+            du -sh /home/ubuntu/DishZero/backend/* 2>/dev/null | sort -hr
+            echo ""
+            echo "=== /tmp size ==="
+            du -sh /tmp 2>/dev/null || true
+            echo ""
+            echo "=== npm cache size ==="
+            du -sh ~/.npm 2>/dev/null || true
+            echo ""
+            echo "=== yarn cache size ==="
+            du -sh ~/.yarn 2>/dev/null || true

From 9106f860318939539bfb151a3c4e797973f5bf1a Mon Sep 17 00:00:00 2001
From: Josh Katofsky <joshua.katofsky@mail.mcgill.ca>
Date: Sat, 14 Feb 2026 16:19:32 -0500
Subject: [PATCH 2/3] clean up storage

---
 .github/workflows/free-disk-space.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/.github/workflows/free-disk-space.yml b/.github/workflows/free-disk-space.yml
index d7eef6af..ec4fc9c1 100644
--- a/.github/workflows/free-disk-space.yml
+++ b/.github/workflows/free-disk-space.yml
@@ -32,3 +32,15 @@ jobs:
             echo ""
             echo "=== yarn cache size ==="
             du -sh ~/.yarn 2>/dev/null || true
+
+            echo ""
+            echo "=== Cleanup: freeing ~400M+ (node_modules + npm cache) ==="
+            export NVM_DIR=~/.nvm
+            source ~/.nvm/nvm.sh
+            npm cache clean --force
+            cd /home/ubuntu/DishZero/backend
+            rm -rf node_modules
+            git gc --aggressive --prune=now
+            echo ""
+            echo "=== Disk usage after cleanup ==="
+            df -h

From 1bf63301f5b1a2db3ad0e3b24fdbdf34ea93ce15 Mon Sep 17 00:00:00 2001
From: Josh Katofsky <joshua.katofsky@mail.mcgill.ca>
Date: Sat, 14 Feb 2026 16:21:27 -0500
Subject: [PATCH 3/3] fix order

---
 .github/workflows/free-disk-space.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/free-disk-space.yml b/.github/workflows/free-disk-space.yml
index ec4fc9c1..96a8d600 100644
--- a/.github/workflows/free-disk-space.yml
+++ b/.github/workflows/free-disk-space.yml
@@ -34,13 +34,13 @@ jobs:
             du -sh ~/.yarn 2>/dev/null || true
 
             echo ""
-            echo "=== Cleanup: freeing ~400M+ (node_modules + npm cache) ==="
-            export NVM_DIR=~/.nvm
-            source ~/.nvm/nvm.sh
-            npm cache clean --force
+            echo "=== Cleanup: free space first (no extra writes), then clear caches ==="
             cd /home/ubuntu/DishZero/backend
             rm -rf node_modules
             git gc --aggressive --prune=now
+            export NVM_DIR=~/.nvm
+            source ~/.nvm/nvm.sh
+            npm cache clean --force
             echo ""
             echo "=== Disk usage after cleanup ==="
             df -h