M CMakeLists.txt → CMakeLists.txt

@@ -4,4 +4,4 @@ 
 set(CMAKE_CXX_STANDARD 17)
 
 add_executable(sysgraph main.cpp)
-#target_link_libraries(sysgraph -static)
+target_link_libraries(sysgraph -static)

A Makefile

@@ -0,0 +1,42 @@ 
+ifeq ($(shell command -v cmake), )
+COMPCMD = g++ -o build/sysgraph main.cpp
+COMPMSG = g++
+else
+ifeq ($(shell command -v ninja), )
+COMPCMD = cmake -S . -B build && cmake --build build
+COMPMSG = cmake
+else
+COMPCMD = cmake -GNinja -S . -B build && cmake --build build
+COMPMSG = cmake and ninja
+endif
+CMAKELISTS = CMakeLists.txt
+endif
+
+ifeq ($(shell command -v strip), )
+STRIPCMD = echo Strip not found. Binary size may be larger than expected.
+else
+STRIPCMD = strip --strip-all build/sysgraph
+endif
+ifeq ($(shell command -v upx), )
+UPXCMD = echo UPX not found. Binary size may be larger than expected.
+else
+UPXCMD = upx --best build/sysgraph
+endif
+
+build: main.cpp $(CMAKELISTS)
+	@echo "Compiling with $(COMPMSG)"
+	@sleep 2
+	@mkdir -p build
+	@$(COMPCMD) && $(STRIPCMD) && $(UPXCMD) && echo "Done! Run make test or make install then make clean" || echo "Failed!"
+
+clean: build
+	@rm -rf build
+	@echo "Cleaned up build directory."
+
+install: build/sysgraph
+	@echo Installing to /usr/local/bin/sysgraph
+	@sudo install build/sygraph /usr/local/bin/sysgraph && echo "Done!" || echo "Failed! Try running as root."
+
+test: build/sysgraph
+	@echo "Running sysgraph"
+	@./build/sysgraph

M main.cpp → main.cpp

@@ -1,6 +1,7 @@ 
 #include <string>
 #include <csignal>
 #include <sys/ioctl.h>
+#include <chrono>
 
 int w, h;
 
@@ -141,7 +142,43 @@ std::string print = std::string(";").append(std::to_string(x)).append("H\033[48;5;").append(std::to_string(color)).append("m \033[0m");
     for (;y<h;y++) s->append("\033[").append(std::to_string(y)).append(print);
 }
 
-int main(){
+int helpmenu(int argc, char* argv[]) {
+    if (argc < 2) return 0;
+    if (!(std::string(argv[1])=="-h" || std::string(argv[1])=="--help")) return 0;
+    printf("\nUsage: %s [OPTION]\n\n", argv[0]);
+    printf("  -h, --help\t\tDisplay this help message.\n");
+    printf("      --log <file>\tLog to file (appends). Log frequency: 1 second. Format:\n");
+    printf("            \t\tunix, cpu usage, temp, ram taken, buffer, avialbale, free\n\n");
+    return 1;
+}
+
+int logarg(int argc, char* argv[], std::string& logdir) {
+    if (argc < 3) return 0;
+    if (std::string(argv[1]) != "--log") return 0;
+    logdir = std::string(argv[2]);
+    return 1;
+}
+
+void log(std::string logdir, meminfo mem, cpuinfo cpu) {
+    std::string logbuf;
+    logbuf.clear();
+    logbuf.append(std::to_string(std::chrono::duration_cast<std::chrono::seconds>(std::chrono::system_clock::now().time_since_epoch()).count()))
+    .append(",").append(std::to_string(cpu.loadavg))
+    .append(",").append(std::to_string(cpu.temp))
+    .append(",").append(std::to_string(mem.taken()))
+    .append(",").append(std::to_string(mem.used()-mem.taken()))
+    .append(",").append(std::to_string(mem.available))
+    .append(",").append(std::to_string(mem.free))
+    .append("\n");
+    FILE* f = fopen(logdir.c_str(), "a");
+    fputs(logbuf.c_str(), f);
+    fclose(f);
+}
+
+int main(int argc, char* argv[]){
+    if (helpmenu(argc, argv)) return 0;
+    std::string logdir;
+    int dolog = logarg(argc, argv, logdir);
     meminfo mem;
     cpuinfo cpu;
     int cpugraph[150] = {0};
@@ -167,6 +204,8 @@ }
         cpugraph[0] = cpu.loadavg;
         ramgraph[0] = mem.percent();
         bufgraph[0] = mem.bufpercent();
+
+        if (dolog) log(logdir, mem, cpu);
 
 
         if (w < 60 || h < 10) {