Sysfex - Another system information tool written in C++

I tried to install it on Ubuntu but it failed. Here's what was printed:

#Compiling sysfex... In file included from src/sysfex.cpp:25: src/functions.h:14:37: warning: use of ‘auto’ in parameter declaration only available with ‘-fconcepts-ts’ 14 | void print(string icon, string key, auto value) | ^~~~ src/functions.h: In function ‘void init_config()’: src/functions.h:46:13: error: ‘std::filesystem’ has not been declared 46 | if(std::filesystem::exists("/opt/sysfex/config")) | ^~~~~~~~~~ src/functions.h: In function ‘std::string exec(const char*)’: src/functions.h:89:10: error: ‘unique_ptr’ is not a member of ‘std’ 89 | std::unique_ptr<FILE, decltype(&pclose)> stream{popen(input, "r"), &pclose}; | ^~~~~~~~~~ src/functions.h:1:1: note: ‘std::unique_ptr’ is defined in header ‘’; did you forget to ‘#include ’? +++ |+#include 1 | #define BOLD "\033[1m" src/functions.h:89:25: error: expected primary-expression before ‘,’ token 89 | std::unique_ptr<FILE, decltype(&pclose)> stream{popen(input, "r"), &pclose}; | ^ src/functions.h:89:27: error: expected primary-expression before ‘decltype’ 89 | std::unique_ptr<FILE, decltype(&pclose)> stream{popen(input, "r"), &pclose}; | ^~~~~~~~~~~~~~~~~ src/functions.h:91:8: error: ‘stream’ was not declared in this scope; did you mean ‘std::io_errc::stream’? 91 | if(stream) | ^~~~~~ | std::io_errc::stream In file included from /usr/include/c++/10/ios:42, from /usr/include/c++/10/ostream:38, from /usr/include/c++/10/iostream:39, from src/sysfex.cpp:2: /usr/include/c++/10/bits/ios_base.h:203:24: note: ‘std::io_errc::stream’ declared here 203 | enum class io_errc { stream = 1 }; | ^~~~~~ In file included from src/sysfex.cpp:26: src/fetch_functions.h: In function ‘int Pacman(std::string)’: src/fetch_functions.h:174:10: error: ‘std::filesystem’ has not been declared 174 | std::filesystem::path pkgfolder = path; | ^~~~~~~~~~ src/fetch_functions.h:175:16: error: ‘std::filesystem’ has not been declared 175 | using std::filesystem::directory_iterator; | ^~~~~~~~~~ src/fetch_functions.h:176:45: error: ‘pkgfolder’ was not declared in this scope 176 | return std::distance(directory_iterator(pkgfolder), directory_iterator{}); | ^~~~~~~~~ src/fetch_functions.h:176:26: error: ‘directory_iterator’ was not declared in this scope 176 | return std::distance(directory_iterator(pkgfolder), directory_iterator{}); | ^~~~~~~~~~~~~~~~~~ src/fetch_functions.h:176:75: error: expected ‘)’ before ‘{’ token 176 | return std::distance(directory_iterator(pkgfolder), directory_iterator{}); | ~ ^ | ) src/fetch_functions.h: In function ‘int Portage(std::string)’: src/fetch_functions.h:181:10: error: ‘std::filesystem’ has not been declared 181 | std::filesystem::path pkgfolder = path; | ^~~~~~~~~~ src/fetch_functions.h:183:16: error: ‘std::filesystem’ has not been declared 183 | using std::filesystem::recursive_directory_iterator; | ^~~~~~~~~~ src/fetch_functions.h:184:16: error: ‘recursive_directory_iterator’ was not declared in this scope 184 | for(auto i=recursive_directory_iterator(path); i!=recursive_directory_iterator(); ++i) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/fetch_functions.h: In function ‘void pkgs()’: src/fetch_functions.h:201:13: error: ‘std::filesystem’ has not been declared 201 | if(std::filesystem::exists("/etc/portage")) | ^~~~~~~~~~ src/fetch_functions.h:205:13: error: ‘std::filesystem’ has not been declared 205 | if(std::filesystem::exists("/etc/pacman.d")) | ^~~~~~~~~~ src/fetch_functions.h:209:13: error: ‘std::filesystem’ has not been declared 209 | if(std::filesystem::exists("/etc/apt")) | ^~~~~~~~~~ src/fetch_functions.h:213:13: error: ‘std::filesystem’ has not been declared 213 | if(std::filesystem::exists("/nix")) | ^~~~~~~~~~ src/fetch_functions.h:215:17: error: ‘std::filesystem’ has not been declared 215 | if(std::filesystem::exists("/etc/nix")) | ^~~~~~~~~~ An error occured. Failed to install sysfex

Hi, just to let you know that I had some installation issues. The sysfex binary and the opt configure directory are both owned by root and therefore could not be run by a standard users. This was resolved with a simple chown $USER /usr/bin/sysfex however it should probably be within the install script.

This was done on Ubuntu 20.0.4 compiled using g++.

Sysfex segfaults when a display is not available. For example, on tty there's no display. Try running it in a tty(Ctrl+Alt+F(n)).

What happens probably is that when the display is null, X11Display returns nullptr instead of an actual pointer. And dereferencing that causes segfault. Solution is to check for null pointer and take action accordingly.

Edited the 'src/fetch_functions.h' file and made the program able to print the number of installed packages on a Void Linux system by using the "xbps-query" command, part of the X Binary Package System package manager.

./installer.sh compile errors on macOS, is this supported on Mac?

Compiling sysfex...
In file included from src/sysfex.cpp:19:
src/functions.h:9:37: error: 'auto' not allowed in function prototype
void print(string icon, string key, auto value)
                                    ^~~~
src/functions.h:43:5: error: no matching function for call to 'print'
    print("", "--help", "Print this screen");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [18]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:44:5: error: no matching function for call to 'print'
    print("", "--ascii <value>", "If value == 0, don't print the ascii art, else do");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [50]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:45:5: error: no matching function for call to 'print'
    print("", "--ascii-dir <path-to-ascii>", "Specify the file which you want to be shown as ascii-art");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [57]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:46:5: error: no matching function for call to 'print'
    print("", "--ascii-beside-txt <value>", "Choose whether ascii art will be printed beside infos or not");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [61]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:47:5: error: no matching function for call to 'print'
    print("", "--icons <value>", "If value == 0, don't print font-icons beside informations, else do");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [67]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:48:5: error: no matching function for call to 'print'
    print("", "--config <path-to-config>", "Specify the file which you want to be used as the config file");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [62]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:4:
src/modules/cpu.h:30:5: error: no matching function for call to 'print'
    print("", "CPU", cpu);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:5:
src/modules/de.h:12:9: error: no matching function for call to 'print'
        print("", "DE/WM", desktop_session);
        ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char *' to 'int' for 3rd argument; dereference the argument with *
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:6:
src/modules/host.h:18:5: error: no matching function for call to 'print'
    print("", "Host", name+" "+version);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'basic_string<char>' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:7:
src/modules/kernel.h:5:2: error: no matching function for call to 'print'
        print("", "Kernel", uname_info.release);
        ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'char [256]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:8:
src/modules/os.h:24:5: error: no matching function for call to 'print'
    print("", "OS", name+" "+uname_info.machine);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'basic_string<char>' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:9:
src/modules/pkgs.h:48:5: error: no matching function for call to 'print'
    print("", "Pkgs", pkg);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:10:
src/modules/ram.h:27:5: error: no matching function for call to 'print'
    print("", "Mem", ram);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:11:
src/modules/resolution.h:12:5: error: no matching function for call to 'print'
    print("", "Res", res);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:12:
src/modules/shell.h:3:2: error: no matching function for call to 'print'
        print("", "Shell", std::getenv("SHELL"));
        ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'char *' to 'int' for 3rd argument; dereference the argument with *
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:14:
src/modules/uptime.h:49:5: error: no matching function for call to 'print'
    print("", "Uptime", time);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
17 errors generated.
An error occured. Failed to install sysfex
[email protected] ~/sysfex (main) [1]> ./installer.sh
An existing installation of Sysfex is found. Remove or override it? [Y/n] y
Removing old sysfex installation
rm: /usr/bin/sysfex: No such file or directory
Install Sysfex? [Y/n] y
Compiling sysfex...
In file included from src/sysfex.cpp:19:
src/functions.h:9:37: error: 'auto' not allowed in function prototype
void print(string icon, string key, auto value)
                                    ^~~~
src/functions.h:43:5: error: no matching function for call to 'print'
    print("", "--help", "Print this screen");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [18]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:44:5: error: no matching function for call to 'print'
    print("", "--ascii <value>", "If value == 0, don't print the ascii art, else do");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [50]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:45:5: error: no matching function for call to 'print'
    print("", "--ascii-dir <path-to-ascii>", "Specify the file which you want to be shown as ascii-art");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [57]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:46:5: error: no matching function for call to 'print'
    print("", "--ascii-beside-txt <value>", "Choose whether ascii art will be printed beside infos or not");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [61]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:47:5: error: no matching function for call to 'print'
    print("", "--icons <value>", "If value == 0, don't print font-icons beside informations, else do");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [67]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
src/functions.h:48:5: error: no matching function for call to 'print'
    print("", "--config <path-to-config>", "Specify the file which you want to be used as the config file");
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char [62]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:4:
src/modules/cpu.h:30:5: error: no matching function for call to 'print'
    print("", "CPU", cpu);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:5:
src/modules/de.h:12:9: error: no matching function for call to 'print'
        print("", "DE/WM", desktop_session);
        ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'const char *' to 'int' for 3rd argument; dereference the argument with *
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:6:
src/modules/host.h:18:5: error: no matching function for call to 'print'
    print("", "Host", name+" "+version);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'basic_string<char>' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:7:
src/modules/kernel.h:5:2: error: no matching function for call to 'print'
        print("", "Kernel", uname_info.release);
        ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'char [256]' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:8:
src/modules/os.h:24:5: error: no matching function for call to 'print'
    print("", "OS", name+" "+uname_info.machine);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'basic_string<char>' to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:9:
src/modules/pkgs.h:48:5: error: no matching function for call to 'print'
    print("", "Pkgs", pkg);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:10:
src/modules/ram.h:27:5: error: no matching function for call to 'print'
    print("", "Mem", ram);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:11:
src/modules/resolution.h:12:5: error: no matching function for call to 'print'
    print("", "Res", res);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:12:
src/modules/shell.h:3:2: error: no matching function for call to 'print'
        print("", "Shell", std::getenv("SHELL"));
        ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'char *' to 'int' for 3rd argument; dereference the argument with *
void print(string icon, string key, auto value)
     ^
In file included from src/sysfex.cpp:20:
In file included from src/modules.h:14:
src/modules/uptime.h:49:5: error: no matching function for call to 'print'
    print("", "Uptime", time);
    ^~~~~
src/functions.h:9:6: note: candidate function not viable: no known conversion from 'std::string' (aka 'basic_string<char>') to 'int' for 3rd argument
void print(string icon, string key, auto value)
     ^
17 errors generated.
An error occured. Failed to install sysfex

Example:

Reason:

By current line length, I don't mean character count. I mean the number of blocks the string will occupy. Though this thing works as it's supposed to be on strings with fontawesome, it doesn't work with strings which have Chinese, Bengali and/or characters of some other languages as well. I don't know how to actually solve this issue yet. Need a bit help here.