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main.c
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main.c
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#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <limits.h>
#include <stdbool.h>
#include <sys/ioctl.h>
#include "info/info.h"
#include "utils.h"
#include "logos.h"
#include "queue.h"
// idk why but this is sometimes not defined
#ifndef HOST_NAME_MAX
#ifdef _POSIX_HOST_NAME_MAX
#define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
#else
#define HOST_NAME_MAX 255
#endif
#endif
// Not sure if this
#ifndef LOGIN_NAME_MAX
#define LOGIN_NAME_MAX HOST_NAME_MAX
#endif
int a = 0;
/* TODO:
* print de, shell and terminal versions
* Windows support? *BSD support?
* make ascii dynamically use the available space (aka line by line)
* start using gtk for theme and icons
* display resolution
* storage
* fix sqlite usage in packages for rpm
* steam installed packages (off by default)
* cpu temp (off by default)
*/
// This contains the default config values
struct Config config = {
// Default values for boolean options (least to most significant bit)
// 0111 0101 1111 1110 1111 1001 0110 ...
0x69f7fae,
NULL, // logo
"", // color
": ", // dash
"-", // separator
5, // spacing
0, // gpu_index
"%02d/%02d/%d %02d:%02d:%02d", // date_format
" ", // col_block_str
"", // separator_prefix
"", // spacing_prefix
"", // title_prefix
"User", // user_prefix
"Hostname", // hostname_prefix
"Uptime", // uptime_prefix
"OS", // os_prefix
"Kernel", // kernel_prefix
"Desktop", // desktop_prefix
"Theme", // gtk_theme_prefix
"Icons", // icon_theme_prefix
"Cursor", // cursor_theme_prefix
"Shell", // shell_prefix
"Login", // login_shell_prefix
"Terminal", // term_prefix
"Packages", // pkg_prefix
"Host", // host_prefix
"BIOS", // bios_prefix
"CPU", // cpu_prefix
"GPU", // gpu_prefix
"Memory", // mem_prefix
"Public IP",// pub_prefix
"Local IP", // loc_prefix
"Directory",// pwd_prefix
"Date", // date_prefix
"Battery", // bat_prefix
"", // colors_prefix
"", // light_colors_prefix
};
int main(int argc, char **argv) {
bool user_is_an_idiot = false; // rtfm and stfu
// are the following command line args used?
bool asking_help = false;
bool use_config = true;
bool print_logo = true;
int asking_color = 0;
int asking_bold = 0;
int asking_logo = 0;
int asking_align = 0;
// these store either the default values or the ones defined in the config
// they are needed to know what is used if no arguments are given (for --help)
bool default_bold = bold;
char default_color[8] = "";
char default_logo[16] = "";
// the default config file is ~/.config/albafetch.conf
char config_file[LOGIN_NAME_MAX + 64] = "";
// path of a custom ascii art
char *ascii_file = NULL;
void *ascii_ptr = NULL;
// parsing the command args
for(int i = 1; i < argc; ++i) {
if(strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0)
asking_help = true;
else if(strcmp(argv[i], "-c") == 0 || strcmp(argv[i], "--color") == 0)
asking_color = i+1;
else if(strcmp(argv[i], "-b") == 0 || strcmp(argv[i], "--bold") == 0)
asking_bold = i+1;
else if(strcmp(argv[i], "--ascii") == 0) {
if(i+1 >= argc) { // is there such an arg?
fputs("\033[31m\033[1mERROR\033[0m: --ascii requires an extra argument!\n", stderr);
user_is_an_idiot = true;
continue;
}
else if(access(argv[i+1], F_OK)) { // is it a valid file?
fprintf(stderr, "\033[31m\033[1mERROR\033[0m: invalid file \"%s\"! Use --help for more info\n", argv[i+1]);
user_is_an_idiot = true;
continue;
}
ascii_file = argv[i+1];
continue;
}
else if(strcmp(argv[i], "-l") == 0 || strcmp(argv[i], "--logo") == 0)
asking_logo = i+1;
else if(strcmp(argv[i], "--align") == 0 || strcmp(argv[i], "-a") == 0)
asking_align = i+1;
else if(strcmp(argv[i], "--config") == 0 && use_config) {
if(i+1 >= argc) { // is there such an arg?
fputs("\033[31m\033[1mERROR\033[0m: --config requires an extra argument!\n", stderr);
user_is_an_idiot = true;
continue;
}
else if(access(argv[i+1], F_OK)) { // is it a valid file?
fprintf(stderr, "\033[31m\033[1mERROR\033[0m: invalid file \"%s\"! Use --help for more info\n", argv[i+1]);
user_is_an_idiot = true;
continue;
}
strncpy(config_file, argv[i+1], sizeof(config_file)-1);
continue;
}
else if(strcmp(argv[i], "--no-logo") == 0)
print_logo = false;
else if(strcmp(argv[i], "--no-config") == 0)
use_config = false;
}
char data[256] = ""; // output of each module
char printed[1024] = ""; // line-by-line output of albafetch
struct Module *modules = malloc(sizeof(struct Module));
modules->id = NULL;
modules->next = NULL;
// albafetch will first parse ~/.config/albafetch.conf
// ~/.config/albafetch/albafetch.conf if the former is not found
if(use_config) { // --no-config was not used
if(config_file[0] == 0) { // --config was not used, using the default path
char *home = getenv("HOME");
char *config_home = getenv("XDG_CONFIG_HOME");
if(config_home) { // is XDG_CONFIG_HOME set?
snprintf(config_file, sizeof(config_file), "%s/albafetch.conf", config_home);
if(access(config_file, F_OK))
snprintf(config_file, sizeof(config_file), "%s/albafetch/albafetch.conf", config_home);
}
if(home && access(config_file, F_OK)) { // is HOME set?
snprintf(config_file, sizeof(config_file), "%s/.config/albafetch.conf", home);
if(access(config_file, F_OK))
snprintf(config_file, sizeof(config_file), "%s/.config/albafetch/albafetch.conf", home);
}
if(access(config_file, F_OK)) {
strcpy(config_file, "/etc/xdg/albafetch.conf");
}
}
parse_config(config_file, modules, &ascii_ptr, &default_bold, default_color, default_logo);
}
if(ascii_file)
ascii_ptr = file_to_logo(ascii_file);
if(asking_logo) { // --logo was used
bool found = false;
if(asking_logo < argc) {
// find the matching logo
for(size_t i = 0; i < sizeof(logos)/sizeof(logos[0]); ++i)
if(strcmp(logos[i][0], argv[asking_logo]) == 0) {
config.logo = logos[i];
found = true;
}
if(found == false)
fprintf(stderr, "\033[31m\033[1mERROR\033[0m: invalid logo \"%s\"! Use --help for more info\n", argv[asking_logo]);
}
else
fputs("\033[31m\033[1mERROR\033[0m: --logo requires an extra argument!\n", stderr);
if(found)
strcpy(config.color, config.logo[1]);
else
user_is_an_idiot = true;
}
if(config.logo == NULL) { // get a logo based on the OS (--logo was not used and no logo was set by the config)
#ifdef __APPLE__
config.logo = logos[1];
#else
# ifdef __ANDROID__
config.logo = logos[2];
# else
config.logo = logos[0];
FILE *fp = fopen("/etc/os-release", "r");
if(fp == NULL)
fp = fopen("/usr/lib/os-release", "r");
if(fp != NULL) {
char os_id[48];
// check with a newline first
read_after_sequence(fp, "\nID", os_id, 48);
if(os_id[0] == 0) {
rewind(fp);
read_after_sequence(fp, "ID", os_id, 48);
}
fclose(fp);
char *end = strchr(os_id, '\n');
if(end != NULL)
*end = 0;
// because Arch Linux ARM has to be special for some reason
// edit: fedora asahi too, yay
if(strcmp(os_id, "archarm") == 0)
os_id[5] = 0;
else if(strcmp(os_id, "fedora-asahi-remix") == 0)
os_id[6] = 0;
// clean up because of some distros randomly using " or ' when they shouldnt be
if(os_id[0] == '\'' || os_id[0] == '"') {
memmove(os_id, os_id+1, strlen(os_id));
end = strchr(os_id, '\'');
if(end == NULL)
end = strchr(os_id, '"');
if(end != NULL)
*end = 0;
}
// find the matching logo
for(size_t i = 0; i < sizeof(logos)/sizeof(*logos); ++i)
if(strcmp(logos[i][0], os_id) == 0) {
config.logo = logos[i];
break;
}
}
# endif // __ANDROID__
#endif // __APPLE__
strcpy(default_logo, config.logo[0]);
strcpy(config.color, config.logo[1]);
}
if(asking_color) {
if(asking_color < argc) {
const char *colors[][2] = {
{"black", "\033[30m"},
{"red", "\033[31m"},
{"green", "\033[32m"},
{"yellow", "\033[33m"},
{"blue", "\033[34m"},
{"purple", "\033[35m"},
{"cyan", "\033[36m"},
{"gray", "\033[90m"},
{"white", "\033[37m"},
};
for(int j = 0; j < 9; ++j)
if(strcmp(argv[asking_color], *colors[j]) == 0) {
strcpy(config.color, colors[j][1]);
goto color_done;
}
fprintf(stderr, "\033[31m\033[1mERROR\033[0m: invalid color \"%s\"! Use --help for more info\n", argv[asking_color]);
}
else
fputs("\033[31m\033[1mERROR\033[0m: --color requires an extra argument!\n", stderr);
user_is_an_idiot = true;
color_done:;
}
if(asking_bold) {
if(asking_bold < argc) {
// modifying the 2nd least significant bit of options
if(strcmp(argv[asking_bold], "on") == 0) {
config.options |= ((uint64_t)1 << 1);
goto bold_done;
}
else if(strcmp(argv[asking_bold], "off") == 0) {
config.options &= ~((uint64_t)1 << 1);
goto bold_done;
}
fputs("\033[31m\033[1mERROR\033[0m: --bold should be followed by either \"on\" or \"off\"!\n", stderr);
}
else
fputs("\033[31m\033[1mERROR\033[0m: --bold requires an extra argument!\n", stderr);
user_is_an_idiot = true;
bold_done:;
}
// was it really that hard to type 'albafetch -h'?
if(user_is_an_idiot) {
destroy_array(modules);
fputs("\033[31m\033[1mFATAL\033[0m: One or multiple errors occurred! Use --help for more info\n", stderr);
return 1;
}
if(asking_help) {
// it won't be used anyway lol
destroy_array(modules);
printf("%s%salbafetch\033[0m - a system fetch utility (v4.2)\n",
config.color, bold ? "\033[1m" : "");
printf("\n%s%sFLAGS\033[0m:\n",
config.color, bold ? "\033[1m" : "");
printf("\t%s%s-h\033[0m,%s%s --help\033[0m:\t Print this help menu and exit\n",
config.color, bold ? "\033[1m" : "", config.color, bold ? "\033[1m" : "");
printf("\t%s%s-c\033[0m,%s%s --color\033[0m:\t Change the output color (%s%s\033[0m)\n"
"\t\t\t [\033[30mblack\033[0m, \033[31mred\033[0m, \033[32mgreen\033[0m, \033[33myellow\033[0m,"
" \033[34mblue\033[0m, \033[35mpurple\033[0m, \033[36mcyan\033[0m, \033[90mgray\033[0m,"
" \033[37mwhite\033[0m]\n",
config.color, bold ? "\033[1m" : "", config.color, bold ? "\033[1m" : "", default_color[0] ? default_color : config.logo[1], default_color[0] ? "default" : "logo default");
printf("\t%s%s-b\033[0m,%s%s --bold\033[0m:\t Specifies if bold should be used in colored parts (default: %s\033[0m)\n"
"\t\t\t [\033[1mon\033[0m, off]\n",
config.color, bold ? "\033[1m" : "", config.color, bold ? "\033[1m" : "", default_bold ? "\033[1mon" : "off");
printf("\t%s%s-l\033[0m,%s%s --logo\033[0m:\t Changes the logo that will be displayed (default: %s)\n"
"\t\t\t [alpine, android, apple, arch, arch_small, debian, endeavouros, fedora, gentoo]\n"
"\t\t\t [linux, linuxmint, mageia, manjaro, neon, nixos, none, parrot, pop, ubuntu, windows]\n",
config.color, bold ? "\033[1m" : "", config.color, bold ? "\033[1m" : "", default_logo[0] ? default_logo : "OS Default");
printf("\t%s%s--ascii\033[0m:\t Specifies a file containing a custom ascii art to use as logo (default: none)\n"
"\t\t\t [path]\n", config.color, bold ? "\033[1m" : "");
printf("\t%s%s-a\033[0m, %s%s--align\033[0m:\t Aligns the infos if set (default: %s)\n"
"\t\t\t [on, off]\n", config.color, bold ? "\033[1m" : "", config.color, bold ? "\033[1m" : "", align ? "on" : "off");
printf("\t%s%s--config\033[0m:\t Specifies a custom config (default: ~/.config/albafetch.conf)\n"
"\t\t\t [path]\n", config.color, bold ? "\033[1m" : "");
printf("\t%s%s--no-logo\033[0m:\t Prints the infos without a logo or ascii art\n",
config.color, bold ? "\033[1m" : "");
printf("\t%s%s--no-config\033[0m:\t Ignores any provided or existing config file\n",
config.color, bold ? "\033[1m" : "");
printf("\nReport a bug: %s%s\033[4mhttps://github.com/alba4k/albafetch/issues\033[0m\n",
config.color, bold ? "\033[1m" : "");
return 0;
}
if(asking_align) {
if(asking_align < argc) {
if(strcmp(argv[asking_align], "on") == 0) {
config.options |= (uint64_t)1;
goto align_done;
}
else if(strcmp(argv[asking_align], "off") == 0) {
config.options &= ~((uint64_t)1);
goto align_done;
}
fputs("\033[31m\033[1mERROR\033[0m: --align should be followed by either \"on\" or \"off\"!\n", stderr);
}
else
fputs("\033[31m\033[1mERROR\033[0m: --align requires an extra argument!\n", stderr);
user_is_an_idiot = true;
align_done:;
}
// I am deeply sorry for the code you're about to see - I hope you like spaghetti
unsigned line = 1;
char format[32] = "%s\033[0m%s";
/* getting the terminal width
* I start by using stdout
* if it is not a terminal (e.g. if the user did albafetch | lolcat) I use stderr
* if stderr doesn't work either, I use stdin (albafetch 2>/dev/null | lolcat)
* now, let's assume the user is a complete moron and redirects everything. Then I just use an "infinite" width
*/
struct winsize win;
win.ws_col = 0;
if(ioctl(STDOUT_FILENO, TIOCGWINSZ, &win))
if(ioctl(STDERR_FILENO, TIOCGWINSZ, &win))
ioctl(STDIN_FILENO, TIOCGWINSZ, &win);
if(win.ws_col == 0)
win.ws_col = -1;
struct Info {
char *id; // module identifier
char *label; // module label
int (*func)(char *); // function to run
};
struct Info module_table[] = {
// {"identifier", "label", func},
{"separator", config.separator_prefix, NULL},
{"space", config.spacing_prefix, NULL},
{"title", config.title_prefix, NULL},
{"user", config.user_prefix, user},
{"hostname", config.hostname_prefix, hostname},
{"uptime", config.uptime_prefix, uptime},
{"os", config.os_prefix, os},
{"kernel", config.kernel_prefix, kernel},
{"desktop", config.desktop_prefix, desktop},
{"gtk_theme", config.gtk_theme_prefix, gtk_theme},
{"icon_theme", config.icon_theme_prefix, icon_theme},
{"cursor_theme", config.cursor_theme_prefix, cursor_theme},
{"shell", config.shell_prefix, shell},
{"login_shell", config.login_shell_prefix, login_shell},
{"term", config.term_prefix, term},
{"packages", config.pkg_prefix, packages},
{"host", config.host_prefix, host},
{"bios", config.bios_prefix, bios},
{"cpu", config.cpu_prefix, cpu},
{"gpu", config.gpu_prefix, gpu},
{"memory", config.mem_prefix, memory},
{"public_ip", config.pub_prefix, public_ip},
{"local_ip", config.loc_prefix, local_ip},
{"pwd", config.pwd_prefix, pwd},
{"date", config.date_prefix, date},
{"battery", config.bat_prefix, battery},
{"colors", config.colors_prefix, colors},
{"light_colors", config.light_colors_prefix, light_colors},
};
// this sets the default module order in case it was not set in a config file
if(modules->next == NULL) {
char *default_order[] = {
"title",
"separator",
"uptime",
"separator",
"os",
"kernel",
"desktop",
"shell",
"term",
"packages",
"separator",
"host",
"cpu",
"gpu",
"memory",
"space",
"colors",
"light_colors",
};
for(size_t i = 0; i < sizeof(default_order)/sizeof(default_order[0]); ++i)
add_module(modules, default_order[i]);
}
// filling in the linked list (with function pointers and labels) based on the ids
// I prefer doing it here than in add_module as this part only runs when it's needed
for(struct Module *current = modules->next; current; current = current->next)
for(size_t i = 0; i < sizeof(module_table)/sizeof(module_table[0]); ++i)
if(strcmp(module_table[i].id, current->id) == 0) {
current->label = module_table[i].label;
current->func = module_table[i].func;
}
if(align) {
size_t current_len;
asking_align = 0;
// determining how far the text should be aligned
for(struct Module *current = modules->next; current; current = current->next) {
current_len = strlen_real(current->label);
if(current_len > (size_t)asking_align)
asking_align = (int)current_len;
}
asking_align += (int)strlen_real(config.dash);
snprintf(format, 32, "%%-%ds\033[0m%%s", asking_align);
}
// printing every module
for(struct Module *current = modules->next; current; current = current->next) {
if(strcmp(current->id, "separator") == 0) { // separators are handled differently
if(printed[0] == 0) // first thing being printed
continue;
// this is the length of the last printed text
const size_t len = strlen_real(printed)
- strlen_real(config.separator_prefix)
- (print_logo
? strlen_real(config.logo[2])
+ config.spacing
: 0);
printed[0] = 0;
if(print_logo) {
get_logo_line(printed, &line);
for(int i = 0; i < config.spacing; ++i)
strcat(printed, " ");
}
strcat(printed, config.color);
strcat(printed, current->label);
const size_t separator_len = strlen(config.separator);
for(size_t i = 0; i < len && strlen(printed) < 1023 - separator_len*i; ++i)
strcat(printed, config.separator);
}
else if(strcmp(current->id, "space") == 0) { // spacings are handled differently (they don't do shit)
printed[0] = 0;
if(print_logo) {
get_logo_line(printed, &line);
for(int i = 0; i < config.spacing; ++i)
strcat(printed, " ");
}
strcat(printed, config.color);
strcat(printed, current->label);
}
else if(strcmp(current->id, "title") == 0) { // titles are handled differently
char name[256];
char host[256];
if(user(name) || hostname(host))
continue;
printed[0] = 0;
if(print_logo) {
get_logo_line(printed, &line);
for(int i = 0; i < config.spacing; ++i)
strcat(printed, " ");
}
strcat(printed, config.color);
strcat(printed, current->label);
if(title_color)
snprintf(printed+strlen(printed), 1024-strlen(printed), "%s%s%s%s@%s%s%s",
config.color,
bold ? "\033[1m" : "",
name,
"\033[0m",
bold ? "\033[1m" : "",
config.color,
host
);
else
snprintf(printed+strlen(printed), 1024-strlen(printed), "%s%s@%s",
"\033[0m",
name,
host
);
}
else if(current->func == NULL) { // printing a custom text
printed[0] = 0;
if(print_logo) {
get_logo_line(printed, &line);
for(int i = 0; i < config.spacing; ++i)
strcat(printed, " ");
}
strcat(printed, config.color);
strncat(printed, current->id, 1023 - strlen(printed));
}
else {
if((current->func)(data))
continue;
char label[80];
printed[0] = 0;
if(print_logo) {
get_logo_line(printed, &line);
for(int i = 0; i < config.spacing; ++i)
strcat(printed, " ");
}
strcat(printed, config.color);
strcpy(label, current->label);
if(current->label[0] && current->func != colors && current->func != light_colors)
strcat(label, config.dash);
snprintf(printed+strlen(printed), 1024-strlen(printed), format, label, data);
}
print_line(printed, win.ws_col);
}
// remaining lines
while(config.logo[line+1] && print_logo) {
printed[0] = 0;
get_logo_line(printed, &line);
print_line(printed, win.ws_col);
}
// memory clean up
free(ascii_ptr);
destroy_array(modules);
return 0;
}