chore: linux build makefile and github workflow

Author: theokyr

.github/workflows/build-cs2remoteconsole-server-linux.yaml

@@ -0,0 +1,47 @@
+name: Build CS2RemoteConsole-server (Linux)
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+      - 'CS2RemoteConsole-server/**'
+  pull_request:
+    branches: [ master ]
+    paths:
+      - 'CS2RemoteConsole-server/**'
+  workflow_dispatch:
+
+jobs:
+  build-cs2remoteconsole-server-linux:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up GCC
+        uses: egor-tensin/setup-gcc@v1
+        with:
+          version: latest
+          platform: x64
+
+      - name: Build CS2RemoteConsole-server
+        run: |
+          cd CS2RemoteConsole-server
+          make
+
+      - name: Prepare artifact directory
+        run: |
+          mkdir -p artifact
+          cp CS2RemoteConsole-server/CS2RemoteConsole-server artifact/
+
+      - name: Verify artifact contents
+        run: |
+          echo "Verifying artifact contents:"
+          ls -l artifact
+
+      - name: Upload CS2RemoteConsole-server artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: CS2RemoteConsole-server-linux-build
+          path: artifact

CS2RemoteConsole-server/Makefile

@@ -0,0 +1,27 @@
+CXX = g++
+CXXFLAGS = -std=c++17 -Wall -Wextra -pedantic
+LDFLAGS = -pthread
+
+SRC_DIR = src
+OBJ_DIR = obj
+
+SOURCES = $(wildcard $(SRC_DIR)/*.cpp)
+OBJECTS = $(SOURCES:$(SRC_DIR)/%.cpp=$(OBJ_DIR)/%.o)
+
+TARGET = CS2RemoteConsole-server
+
+.PHONY: all clean
+
+all: $(TARGET)
+
+$(TARGET): $(OBJECTS)
+	$(CXX) $(OBJECTS) -o $@ $(LDFLAGS)
+
+$(OBJ_DIR)/%.o: $(SRC_DIR)/%.cpp | $(OBJ_DIR)
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
+$(OBJ_DIR):
+	mkdir -p $@
+
+clean:
+	rm -rf $(OBJ_DIR) $(TARGET)