feat: copy selected process command to clipboard

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "lib/clip"]
+	path = lib/clip
+	url = https://github.com/dacap/clip.git

Makefile

@@ -115,6 +115,13 @@ ifeq ($(THREADS),1)
 	override THREADS := auto
 endif
 
+#? Pull in the clipboard library
+CLIPDIR		:= lib/clip
+override ADDFLAGS += -L$(CLIPDIR) -lclip
+ifeq ($(XDG_SESSION_TYPE),x11)
+	override ADDFLAGS += -lxcb
+endif
+
 #? The Directories, Source, Includes, Objects and Binary
 SRCDIR		:= src
 INCDIR		:= include
@@ -134,7 +141,7 @@ OPTFLAGS			:= -O2 -ftree-loop-vectorize -flto=$(THREADS)
 LDCXXFLAGS			:= -pthread -D_FORTIFY_SOURCE=2 -D_GLIBCXX_ASSERTIONS $(GOODFLAGS) $(ADDFLAGS)
 override CXXFLAGS	+= $(REQFLAGS) $(LDCXXFLAGS) $(OPTFLAGS) $(WARNFLAGS)
 override LDFLAGS	+= $(LDCXXFLAGS) $(OPTFLAGS) $(WARNFLAGS)
-INC					:= -I$(INCDIR) -I$(SRCDIR)
+INC					:= -I$(INCDIR) -I$(CLIPDIR) -I$(SRCDIR)
 SU_USER				:= root
 
 ifdef DEBUG
@@ -168,6 +175,11 @@ P := %%
 #? Default Make
 all: $(PRE) directories btop
 
+clip:
+	@cd $(CLIPDIR)
+	@cmake -DCLIP_X11_WITH_PNG=OFF .
+	@make
+
 info:
 	@printf " $(BANNER)\n"
 	@printf "\033[1;92mPLATFORM   \033[1;93m?| \033[0m$(PLATFORM)\n"
@@ -261,7 +273,7 @@ uninstall:
 
 #? Link
 .ONESHELL:
-btop: $(OBJECTS) | directories
+btop: $(OBJECTS) | directories clip
 	@sleep 0.2 2>/dev/null || true
 	@TSTAMP=$$(date +%s 2>/dev/null || echo "0")
 	@$(QUIET) || printf "\n\033[1;92mLinking and optimizing binary\033[37m...\033[0m\n"

src/btop_config.cpp

@@ -218,6 +218,7 @@ namespace Config {
 		{"proc_filter", ""},
 		{"proc_command", ""},
 		{"selected_name", ""},
+		{"selected_cmd", ""},
 	};
 	unordered_flat_map<string, string> stringsTmp;
 
@@ -482,6 +483,7 @@ namespace Config {
 			if (Proc::shown) {
 				ints.at("selected_pid") = Proc::selected_pid;
 				strings.at("selected_name") = Proc::selected_name;
+				strings.at("selected_cmd") = Proc::selected_cmd;
 				ints.at("proc_start") = Proc::start;
 				ints.at("proc_selected") = Proc::selected;
 				ints.at("selected_depth") = Proc::selected_depth;

src/btop_draw.cpp

@@ -1076,6 +1076,7 @@ namespace Proc {
 	bool shown = true, redraw = true;
 	int selected_pid = 0, selected_depth = 0;
 	string selected_name;
+	string selected_cmd;
 	unordered_flat_map<size_t, Draw::Graph> p_graphs;
 	unordered_flat_map<size_t, bool> p_wide_cmd;
 	unordered_flat_map<size_t, int> p_counters;
@@ -1326,6 +1327,7 @@ namespace Proc {
 				mouse_x += 6;
 			}
 			out += title_left_down + Fx::b + hi_color + 's' + t_color + "ignals" + Fx::ub + title_right_down;
+			out += title_left_down + Fx::b + t_color + "copy cmd" + Fx::b + hi_color + " x" + t_color + Fx::ub + title_right_down;
 			if (selected > 0) Input::mouse_mappings["s"] = {y + height - 1, mouse_x, 1, 7};
 
 			//? Labels for fields in list
@@ -1402,6 +1404,7 @@ namespace Proc {
 			if (is_selected) {
 				selected_pid = (int)p.pid;
 				selected_name = p.name;
+				selected_cmd = p.cmd;
 				selected_depth = p.depth;
 			}
 

src/btop_input.cpp

@@ -22,6 +22,8 @@ tab-size = 4
 #include <thread>
 #include <mutex>
 
+#include <clip.h>
+
 #include <btop_input.hpp>
 #include <btop_tools.hpp>
 #include <btop_config.hpp>
@@ -437,6 +439,10 @@ namespace Input {
 					else if (old_selected != new_selected and (old_selected == 0 or new_selected == 0))
 						redraw = true;
 				}
+				else if (key == "x") {
+					atomic_wait(Runner::active);
+					clip::set_text(Config::getS("selected_cmd"));
+				}
 				else keep_going = true;
 
 				if (not keep_going) {

src/btop_shared.hpp

@@ -220,7 +220,7 @@ namespace Proc {
 	extern int select_max;
 	extern atomic<int> detailed_pid;
 	extern int selected_pid, start, selected, collapse, expand, filter_found, selected_depth;
-	extern string selected_name;
+	extern string selected_name, selected_cmd;
 
 	//? Contains the valid sorting options for processes
 	const vector<string> sort_vector = {

src/linux/btop_collect.cpp

@@ -95,7 +95,7 @@ namespace Mem {
 namespace Shared {
 
 	fs::path procPath, passwd_path;
-	long pageSize, clkTck, coreCount;
+	long pageSize, clkTck, coreCount, arg_max;
 
 	void init() {
 
@@ -129,6 +129,9 @@ namespace Shared {
 			Logger::warning("Could not get system clock ticks per second. Defaulting to 100, processes cpu usage might be incorrect.");
 		}
 
+		//* Get maximum length of process arguments
+		arg_max = sysconf(_SC_ARG_MAX);
+
 		//? Init for namespace Cpu
 		if (not fs::exists(Cpu::freq_path) or access(Cpu::freq_path.c_str(), R_OK) == -1) Cpu::freq_path.clear();
 		Cpu::current_cpu.core_percent.insert(Cpu::current_cpu.core_percent.begin(), Shared::coreCount, {});
@@ -150,9 +153,7 @@ namespace Shared {
 		//? Init for namespace Mem
 		Mem::old_uptime = system_uptime();
 		Mem::collect();
-
 	}
-
 }
 
 namespace Cpu {
@@ -1809,8 +1810,8 @@ namespace Proc {
 					long_string.clear();
 					while(getline(pread, long_string, '\0')) {
 						new_proc.cmd += long_string + ' ';
-						if (new_proc.cmd.size() > 1000) {
-							new_proc.cmd.resize(1000);
+						if (new_proc.cmd.size() > static_cast<size_t>(Shared::arg_max)) {
+							new_proc.cmd.resize(Shared::arg_max);
 							break;
 						}
 					}

src/osx/btop_collect.cpp

@@ -1224,7 +1224,7 @@ namespace Proc {
 								std::string_view proc_args(proc_chars.get(), argmax);
 								if (size_t null_pos = proc_args.find('\0', sizeof(argc)); null_pos != string::npos) {
 									if (size_t start_pos = proc_args.find_first_not_of('\0', null_pos); start_pos != string::npos) {
-										while (argc-- > 0 and null_pos != string::npos and cmp_less(new_proc.cmd.size(), 1000)) {
+										while (argc-- > 0 and null_pos != string::npos and cmp_less(new_proc.cmd.size(), argmax)) {
 											null_pos = proc_args.find('\0', start_pos);
 											new_proc.cmd += (string)proc_args.substr(start_pos, null_pos - start_pos) + ' ';
 											start_pos = null_pos + 1;
@@ -1235,8 +1235,8 @@ namespace Proc {
 							}
 						}
 						if (new_proc.cmd.empty()) new_proc.cmd = f_name;
-						if (new_proc.cmd.size() > 1000) {
-							new_proc.cmd.resize(1000);
+						if (new_proc.cmd.size() > static_cast<size_t>(Shared::arg_max)) {
+							new_proc.cmd.resize(Shared::arg_max);
 							new_proc.cmd.shrink_to_fit();
 						}
 						new_proc.ppid = kproc.kp_eproc.e_ppid;