From 78e57f0e4cb7068dcb2f71004d5878276e12c619 Mon Sep 17 00:00:00 2001
From: Shamy <110725453+shamykyzer@users.noreply.github.com>
Date: Wed, 2 Jul 2025 12:18:12 +0300
Subject: [PATCH 1/2] Reorder CI jobs and update docs

---
 .github/workflows/c-cpp.yml | 81 +++++++++++++++++++++++++++++++------
 .gitignore                  |  2 +
 README.md                   |  9 +++++
 3 files changed, 79 insertions(+), 13 deletions(-)

diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 69a4793..0cdc759 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -1,23 +1,78 @@
+---
 name: C/C++ CI
 
-on:
+"on":
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
 jobs:
-  build:
+  install-dependencies:
+    name: Installing Dependencies
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Cache build artifacts
+        uses: actions/cache@v3
+        with:
+          path: |
+            src/*.o
+            tests/*.o
+          key: "${{ runner.os }}-build-${{ hashFiles('**/*.c') }}"
+          restore-keys: "${{ runner.os }}-build-"
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
 
+  test:
+    name: Test
     runs-on: ubuntu-latest
+    needs: install-dependencies
+    steps:
+      - uses: actions/checkout@v4
+      - name: Restore build cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            src/*.o
+            tests/*.o
+          key: "${{ runner.os }}-build-${{ hashFiles('**/*.c') }}"
+          restore-keys: "${{ runner.os }}-build-"
+      - name: Test
+        run: make test
 
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - uses: actions/checkout@v4
+      - name: Restore build cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            src/*.o
+            tests/*.o
+          key: "${{ runner.os }}-build-${{ hashFiles('**/*.c') }}"
+          restore-keys: "${{ runner.os }}-build-"
+      - name: Build
+        run: make clean && make
+
+  make:
+    name: Make
+    runs-on: ubuntu-latest
+    needs: build
     steps:
-    - uses: actions/checkout@v4
-    - name: Install dependencies
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
-    - name: Build
-      run: make
-    - name: Test
-      run: make test
+      - uses: actions/checkout@v4
+      - name: Restore build cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            src/*.o
+            tests/*.o
+          key: "${{ runner.os }}-build-${{ hashFiles('**/*.c') }}"
+          restore-keys: "${{ runner.os }}-build-"
+      - name: Make
+        run: make clean && make
diff --git a/.gitignore b/.gitignore
index 392d5f9..1cf7a02 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,5 @@ obj/
 # Object files
 *.o
 src/*.o
+gravity-simulation/
+tests/test_quadtree
diff --git a/README.md b/README.md
index e52a7bc..cc3ac06 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ This project is a continuation of fluid simulation concepts, extended to simulat
 - [Installation](#installation)
 - [Build](#build)
 - [Usage](#usage)
+- [Continuous Integration](#continuous-integration)
 - [Project Layout](#project-layout)
 - [Acknowledgments](#acknowledgments)
 - [License](#license)
@@ -74,6 +75,14 @@ To set up and compile the project on your local machine, follow these steps:
    ./gravity_simulation
    ```
 
+## Continuous Integration
+
+This project uses a GitHub Actions workflow with four sequential jobs:
+**Installing Dependencies**, **Test**, **Build**, and **Make**. Each job
+installs the required packages with `apt-get`, and compiled object files are
+cached between jobs to speed up subsequent runs. The build steps run
+`make clean` before `make` to ensure a fresh compilation each time.
+
 ## Usage
 
 To run the simulation:

From 3a9d57b4931735d1c721c08d0d49a6700ca2810d Mon Sep 17 00:00:00 2001
From: Shamy <110725453+shamykyzer@users.noreply.github.com>
Date: Wed, 2 Jul 2025 12:27:38 +0300
Subject: [PATCH 2/2] Update c-cpp.yml

---
 .github/workflows/c-cpp.yml | 38 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 3a2c3cc..9a0232a 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -13,6 +13,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - name: Cache APT packages
+        uses: actions/cache@v3
+        with:
+          path: /var/cache/apt
+          key: "${{ runner.os }}-apt-${{ hashFiles('.github/workflows/c-cpp.yml') }}"
+          restore-keys: "${{ runner.os }}-apt-"
       - name: Cache build artifacts
         uses: actions/cache@v3
         with:
@@ -32,6 +38,16 @@ jobs:
     needs: install-dependencies
     steps:
       - uses: actions/checkout@v4
+      - name: Cache APT packages
+        uses: actions/cache@v3
+        with:
+          path: /var/cache/apt
+          key: "${{ runner.os }}-apt-${{ hashFiles('.github/workflows/c-cpp.yml') }}"
+          restore-keys: "${{ runner.os }}-apt-"
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
       - name: Restore build cache
         uses: actions/cache@v3
         with:
@@ -49,6 +65,16 @@ jobs:
     needs: test
     steps:
       - uses: actions/checkout@v4
+      - name: Cache APT packages
+        uses: actions/cache@v3
+        with:
+          path: /var/cache/apt
+          key: "${{ runner.os }}-apt-${{ hashFiles('.github/workflows/c-cpp.yml') }}"
+          restore-keys: "${{ runner.os }}-apt-"
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
       - name: Restore build cache
         uses: actions/cache@v3
         with:
@@ -66,6 +92,16 @@ jobs:
     needs: build
     steps:
       - uses: actions/checkout@v4
+      - name: Cache APT packages
+        uses: actions/cache@v3
+        with:
+          path: /var/cache/apt
+          key: "${{ runner.os }}-apt-${{ hashFiles('.github/workflows/c-cpp.yml') }}"
+          restore-keys: "${{ runner.os }}-apt-"
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
       - name: Restore build cache
         uses: actions/cache@v3
         with:
@@ -75,4 +111,4 @@ jobs:
           key: "${{ runner.os }}-build-${{ hashFiles('**/*.c') }}"
           restore-keys: "${{ runner.os }}-build-"
       - name: Make
-        run: make clean && make
\ No newline at end of file
+        run: make clean && make