From 5cb87c5bafe19e3e280e5fe395e58316c7a827d9 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Fri, 10 Oct 2025 07:33:17 -1000
Subject: [PATCH] docs

---
 .github/workflows/ci.yml        | 16 +++++++++-------
 script/test_build_components.py | 23 +++++++++++++++++++++++
 2 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 22a6cdbb75..ad81ba64a6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -435,13 +435,10 @@ jobs:
       matrix:
         components: ${{ fromJson(needs.test-build-components-splitter.outputs.matrix) }}
     steps:
-      - name: Free up disk space
+      - name: Show disk space
         run: |
-          echo "Disk space before cleanup:"
+          echo "Available disk space:"
           df -h
-          echo "Starting background cleanup process..."
-          python3 -c "import os; os.fork() or os.execvp('sudo', ['sudo', 'rm', '-rf', '/usr/share/dotnet', '/usr/local/lib/android', '/opt/ghc', '/opt/hostedtoolcache/CodeQL'])"
-          echo "Cleanup running in background, continuing with workflow..."
 
       - name: List components
         run: echo ${{ matrix.components }}
@@ -462,8 +459,13 @@ jobs:
       - name: Validate and compile components with intelligent grouping
         run: |
           . venv/bin/activate
-          mkdir -p build_cache
-          export PLATFORMIO_BUILD_CACHE_DIR=$PWD/build_cache
+          # Use /mnt for build files (70GB available vs ~29GB on /)
+          mkdir -p /mnt/build_cache
+          export PLATFORMIO_BUILD_CACHE_DIR=/mnt/build_cache
+
+          # Also move test_build_components/build to /mnt
+          mkdir -p /mnt/test_build_components_build
+          ln -s /mnt/test_build_components_build tests/test_build_components/build
 
           # Convert space-separated components to comma-separated for Python script
           components_csv=$(echo "${{ matrix.components }}" | tr ' ' ',')
diff --git a/script/test_build_components.py b/script/test_build_components.py
index 06ba860c26..c6045f2a3e 100755
--- a/script/test_build_components.py
+++ b/script/test_build_components.py
@@ -18,6 +18,7 @@ from __future__ import annotations
 import argparse
 from collections import defaultdict
 import hashlib
+import os
 from pathlib import Path
 import subprocess
 import sys
@@ -38,6 +39,20 @@ from script.analyze_component_buses import (
 from script.merge_component_configs import merge_component_configs
 
 
+def show_disk_space_if_ci(esphome_command: str) -> None:
+    """Show disk space usage if running in CI during compile.
+
+    Args:
+        esphome_command: The esphome command being run (config/compile/clean)
+    """
+    if os.environ.get("GITHUB_ACTIONS") and esphome_command == "compile":
+        print("\n" + "=" * 80)
+        print("Disk Space After Build:")
+        print("=" * 80)
+        subprocess.run(["df", "-h"], check=False)
+        print("=" * 80 + "\n")
+
+
 def find_component_tests(
     components_dir: Path, component_pattern: str = "*"
 ) -> dict[str, list[Path]]:
@@ -200,6 +215,10 @@ def run_esphome_test(
     try:
         result = subprocess.run(cmd, check=False)
         success = result.returncode == 0
+
+        # Show disk space after build in CI during compile
+        show_disk_space_if_ci(esphome_command)
+
         if not success and not continue_on_fail:
             # Print command immediately for failed tests
             print(f"\n{'=' * 80}")
@@ -309,6 +328,10 @@ def run_grouped_test(
     try:
         result = subprocess.run(cmd, check=False)
         success = result.returncode == 0
+
+        # Show disk space after build in CI during compile
+        show_disk_space_if_ci(esphome_command)
+
         if not success and not continue_on_fail:
             # Print command immediately for failed tests
             print(f"\n{'=' * 80}")