commit ee320e67be657d84b14befa0b79cb06fbf3d8f86
parent e5c505a856928365c293b85d036329a9dfdc5f8f
Author: Allis IO <0xa111510@gmail.com>
Date: Wed, 22 Apr 2020 21:31:51 -0400
Add in-source configuration that cooperates with caching
Diffstat:
| M | paleofetch.c | | | 186 | ++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------- |
| A | paleofetch.h | | | 19 | +++++++++++++++++++ |
2 files changed, 136 insertions(+), 69 deletions(-)
diff --git a/paleofetch.c b/paleofetch.c
@@ -1,6 +1,7 @@
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
+#include <stdbool.h>
#include <string.h>
#include <dirent.h>
@@ -11,30 +12,56 @@
#include <X11/Xlib.h>
#include <X11/Xatom.h>
+#include "paleofetch.h"
+
#define DISTRO "Arch"
#define BUF_SIZE 150
+struct conf {
+ char *label, *(*function)();
+ bool cached;
+} config[] = {
+ { "", get_title, false },
+ { "", get_bar, false },
+ { "OS: ", get_os, true },
+ { "Host: ", get_host, true },
+ { "Kernel: ", get_kernel, true },
+ { "", spacer, false },
+ { "Packages: ", get_packages, false },
+ { "Shell: ", get_shell, false },
+ { "Resolution: ", get_resolution, false },
+ { "Terminal: ", get_terminal, false },
+ { "", spacer, false },
+ { "CPU: ", get_cpu, true },
+ { "GPU: ", get_gpu, true },
+ { "Memory: ", get_memory, false },
+ { "", spacer, false },
+ { "", get_colors1, false },
+ { "", get_colors2, false },
+};
+
// I copy pasted this from neofetch, in case you were curious
-#define FORMAT_STR \
-"\e[1;36m -` \e[0m%s\n"\
-"\e[1;36m .o+` \e[0m%s\n"\
-"\e[1;36m `ooo/ OS: \e[0m%s\n"\
-"\e[1;36m `+oooo: Host: \e[0m%s\n"\
-"\e[1;36m `+oooooo: Kernel: \e[0m%s\n"\
-"\e[1;36m -+oooooo+: Uptime: \e[0m%s\n"\
-"\e[1;36m `/:-:++oooo+:\n"\
-"\e[1;36m `/++++/+++++++: Packages: \e[0m%s\n"\
-"\e[1;36m `/++++++++++++++: Shell: \e[0m%s\n"\
-"\e[1;36m `/+++ooooooooooooo/` Resolution: \e[0m%s\n"\
-"\e[1;36m ./ooosssso++osssssso+` Terminal: \e[0m%s\n"\
-"\e[1;36m .oossssso-````/ossssss+`\n"\
-"\e[1;36m -osssssso. :ssssssso. CPU: \e[0m%s\n"\
-"\e[1;36m :osssssss/ osssso+++. GPU: \e[0m%s\n"\
-"\e[1;36m /ossssssss/ +ssssooo/- Memory: \e[0m%s\n"\
-"\e[1;36m `/ossssso+/:- -:/+osssso+-\n"\
-"\e[1;36m `+sso+:-` `.-/+oso: %s\n"\
-"\e[1;36m`++:. `-/+/ %s\n"\
-"\e[1;36m.` `/\e[0m\n\n"
+char *logo[] = {
+ "\e[1;36m -` ",
+ "\e[1;36m .o+` ",
+ "\e[1;36m `ooo/ ",
+ "\e[1;36m `+oooo: ",
+ "\e[1;36m `+oooooo: ",
+ "\e[1;36m -+oooooo+: ",
+ "\e[1;36m `/:-:++oooo+: ",
+ "\e[1;36m `/++++/+++++++: ",
+ "\e[1;36m `/++++++++++++++: ",
+ "\e[1;36m `/+++ooooooooooooo/` ",
+ "\e[1;36m ./ooosssso++osssssso+` ",
+ "\e[1;36m .oossssso-````/ossssss+` ",
+ "\e[1;36m -osssssso. :ssssssso. ",
+ "\e[1;36m :osssssss/ osssso+++. ",
+ "\e[1;36m /ossssssss/ +ssssooo/- ",
+ "\e[1;36m `/ossssso+/:- -:/+osssso+- ",
+ "\e[1;36m `+sso+:-` `.-/+oso: ",
+ "\e[1;36m`++:. `-/+/ ",
+ "\e[1;36m.` `/ "
+};
// TODO: Finish it
@@ -409,6 +436,10 @@ char *get_colors2() {
return colors2;
}
+char *spacer() {
+ return calloc(1, 1); // freeable, null-terminated string of length 1
+}
+
char *get_cache_file() {
char *cache_file = malloc(BUF_SIZE);
char *env = getenv("XDG_CACHE_HOME");
@@ -420,10 +451,44 @@ char *get_cache_file() {
return cache_file;
}
+/* This isn't especially robust, but as long as we're the only one writing
+ * to our cache file, the format is simple, effective, and fast. One way
+ * we might get in trouble would be if the user decided not to have any
+ * sort of sigil (like ':') after their labels. */
+char *search_cache(char *cache_data, char *label) {
+ char *start = strstr(cache_data, label) + strlen(label);
+ char *end = strchr(start, ';');
+
+ char *buf = calloc(1, BUF_SIZE);
+ // skip past the '=' and stop just before the ';'
+ strncpy(buf, start + 1, end - start - 1);
+
+ return buf;
+}
+
+char *get_value(struct conf c, int read_cache, char *cache_data) {
+ char *value;
+
+ // If the user's config specifies that this value should be cached
+ if(c.cached && read_cache) // and we have a cache to read from
+ value = search_cache(cache_data, c.label); // grab it from the cache
+ else {
+ // Otherwise, call the associated function to get the value
+ value = c.function();
+ if(c.cached) { // and append it to our cache data if appropriate
+ char *buf = malloc(BUF_SIZE);
+ sprintf(buf, "%s=%s;", c.label, value);
+ strcat(cache_data, buf);
+ free(buf);
+ }
+ }
+
+ return value;
+}
+
int main(int argc, char *argv[]) {
- char *cache;
+ char *cache, *cache_data = NULL;
FILE *cache_file;
- char *title, *bar, *os, *kernel, *host, *uptime, *packages, *shell, *resolution, *terminal, *cpu, *gpu, *memory, *colors1, *colors2;
int read_cache;
status = uname(&uname_info);
@@ -444,60 +509,43 @@ int main(int argc, char *argv[]) {
read_cache = cache_file != NULL;
}
- if(read_cache) {
- os = malloc(BUF_SIZE);
- host = malloc(BUF_SIZE);
- kernel = malloc(BUF_SIZE);
- cpu = malloc(BUF_SIZE);
- gpu = malloc(BUF_SIZE);
- fscanf(cache_file, "OS: %[^\n] HOST: %[^\n] KERNEL: %[^\n] CPU: %[^\n] GPU: %[^\n]",
- os, host, kernel, cpu, gpu);
- fclose(cache_file);
- }
+ if(!read_cache)
+ cache_data = calloc(4, BUF_SIZE); // should be enough
else {
- os = get_os();
- host = get_host();
- kernel = get_kernel();
- cpu = get_cpu();
- gpu = get_gpu();
+ size_t len; /* unused */
+ getline(&cache_data, &len, cache_file);
+ fclose(cache_file); // We just need the first (and only) line.
}
- title = get_title();
- bar = get_bar();
- uptime = get_uptime();
- packages = get_packages();
- shell = get_shell();
- resolution = get_resolution();
- terminal = get_terminal();
- memory = get_memory();
- colors1 = get_colors1();
- colors2 = get_colors2();
-
- printf(FORMAT_STR, title, bar, os, host, kernel, uptime, packages, shell, resolution, terminal, cpu, gpu, memory, colors1, colors2);
+#define COUNT(x) (int)(sizeof x / sizeof *x)
+
+ // for vertically centering the data with the logo
+ int offset = (COUNT(logo) - COUNT(config)) / 2;
+
+ for (int i = 0; i < COUNT(logo); ++i) {
+ // If we haven't started showing data (or we're done doing so)...
+ if(i < offset || i >= offset + COUNT(config))
+ puts(logo[i]); // just print the next line of the logo
+ else {
+ // Otherwise, we've got a bit of work to do.
+ char *label = config[i - offset].label,
+ *value = get_value(config[i - offset], read_cache, cache_data);
+ printf("%s%s\e[0m%s\n", logo[i], label, value);
+ free(value);
+ }
+ }
+ puts("\e[0m");
- if(!read_cache) {
+ /* Write out our cache data (if we have any). */
+ if(!read_cache && *cache_data) {
cache_file = fopen(cache, "w");
- fprintf(cache_file, "OS: %s\nHOST: %s\nKERNEL: %s\nCPU: %s\nGPU: %s\n",
- os, host, kernel, cpu, gpu);
+ fprintf(cache_file, "%s", cache_data);
fclose(cache_file);
}
- free(title);
- free(bar);
- free(os);
- free(kernel);
- free(host);
- free(uptime);
- free(packages);
- free(shell);
- free(resolution);
- free(terminal);
- free(cpu);
- free(gpu);
- free(memory);
- free(colors1);
- free(colors2);
-
- XCloseDisplay(display);
free(cache);
+ free(cache_data);
+ XCloseDisplay(display);
+
+ return 0;
}
diff --git a/paleofetch.h b/paleofetch.h
@@ -0,0 +1,19 @@
+/* Forward-declare our functions so users can mention them in their
+ * configs at the top of the file rather than near the bottom. */
+
+char *get_title(),
+ *get_bar(),
+ *get_os(),
+ *get_kernel(),
+ *get_host(),
+ *get_uptime(),
+ *get_packages(),
+ *get_shell(),
+ *get_resolution(),
+ *get_terminal(),
+ *get_cpu(),
+ *get_gpu(),
+ *get_memory(),
+ *get_colors1(),
+ *get_colors2(),
+ *spacer();
