Use @Itai-Nelken genapplist-yad.c program for faster preloading
Botspot
3 years ago
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c71624b440
commit
0853aef410
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/* ========================================================= *
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* Pi-Apps app preloader for YAD GUI app list style. *
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* Written by Itai-Nelken 09/09/2021 (MM/DD/YY). *
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* --------------------------------------------------------- *
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* gcc pi-apps_app-prel.c -o prel -Wall -Wextra -Wpedantic *
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* ========================================================= */
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#include <stdio.h>
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#include <stdlib.h>
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#include <dirent.h>
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#include <string.h>
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#include <assert.h>
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// check if a file exists
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int fileExists(const char *path) {
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FILE *file=fopen(path, "rb");
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if (!file) {
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return 1;
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}
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fclose(file);
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return 0;
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}
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// fill a string with nul characters ('\0')
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void str_zero(char *str) {
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char *s=str;
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while(*s++) {
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*s='\0';
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}
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}
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// get a single line from a file
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void getLine(const char *filename, char *out, size_t size) {
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FILE *f=fopen(filename, "r");
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if(!f) {
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perror("getLine(): fopen()");
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} else {
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fgets(out, size, f);
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fclose(f);
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}
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}
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// get the status of a app in pi-apps
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void get_app_status(const char *app, char *status, size_t size) {
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char path[250]={0}, st[4096]={0}, *directory=getenv("DIRECTORY");
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snprintf(path, 250, "%s/data/status/%s", directory, app);
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if (!fileExists(path)) { //if 'path' exists
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getLine(path, st, 4096);
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st[strlen(st)-1]='\0';
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assert(strlen(st)<=size);
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snprintf(status, size, "%s", st);
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} else {
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snprintf(path, 250, "%s/apps/%s/uninstall", directory, app);
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if(!fileExists(path)) {
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assert(strlen("uninstalled")<=size);
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snprintf(status, size, "uninstalled");
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} else {
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fprintf(stderr, "ERROR: get_app_status(): No such app: \"%s\"!\n", app);
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}
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}
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}
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// get the status of a app in pi-apps but print 'none' if the app has no status file
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// but it exists (it has a uninstall script)
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void get_app_status_with_none(const char *app, char *status, size_t size) {
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char path[250]={0}, st[4096]={0}, *directory=getenv("DIRECTORY");
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snprintf(path, 250, "%s/data/status/%s", directory, app);
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if (!fileExists(path)) { //if 'path' exists
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getLine(path, st, 4096);
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st[strlen(st)-1]='\0';
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assert(strlen(st)<=size);
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snprintf(status, size, "%s", st);
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} else {
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snprintf(path, 250, "%s/apps/%s/uninstall", directory, app);
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if(!fileExists(path)) {
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assert(strlen("none")<=size);
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snprintf(status, size, "none");
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} else {
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fprintf(stderr, "ERROR: get_app_status(): No such app: \"%s\"!\n", app);
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}
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}
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}
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// get the path to the status icon for a app based on the it's status
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void get_status_icon(const char *app, char *icon, size_t size) {
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char path[300]={0}, *directory=getenv("DIRECTORY"), status[30]={0};
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get_app_status_with_none(app, status, 30);
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snprintf(path, 300, "%s/icons/%s.png", directory, status);
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if(!fileExists(path)) {
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assert(strlen(path)<=size);
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strncpy(icon, path, size);
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} else {
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//fprintf(stderr, "ERROR: get_icon_name(): icon \"%s\" doesn't exist!\n", path);
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assert(strlen(directory)+15<=size);
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snprintf(icon, strlen(directory)+15, "%s/icons/none.png", directory);
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}
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}
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// get the path to a app's icon
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void get_app_icon(const char *app, char *icon, size_t size) {
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char path[4096]={0}, *directory=getenv("DIRECTORY");
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snprintf(path, 4096, "%s/apps/%s/icon-24.png", directory, app);
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if(!fileExists(path)) {
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assert(strlen(path)<=size);
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strncpy(icon, path, size);
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} else {
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fprintf(stderr, "ERROR: get_app_icon(): app \"%s\" doesn't have a icon-24!\n", app);
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}
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}
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// get the status and first line of the description of an app in a format like this:
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// "(<STATUS>) <SHORT DESCRIPTION>"
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void get_app_status_and_desc(const char *app, char *out, size_t out_size) {
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char path[4096]={0}, buffer[out_size], status[30]={0}, *directory=getenv("DIRECTORY");
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str_zero(buffer);
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snprintf(path, 4096, "%s/apps/%s/description", directory, app);
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if(!fileExists(path)) {
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getLine(path, buffer, out_size);
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buffer[strlen(buffer)-1]='\0'; // remove newline from end
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get_app_status(app, status, 30);
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snprintf(out, out_size+33, "(%s) %s", status, buffer);
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} else {
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fprintf(stderr, "ERROR: get_app_status_and_desc(): app \"%s\" doesn't have a description!\n", app);
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}
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}
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// collect and print all the data
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void print_all(const char *app) {
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char st_icon[300]={0}, app_icon[4096]={0}, desc[4096]={0};
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get_status_icon(app, st_icon, 300);
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get_app_icon(app, app_icon, 4096);
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get_app_status_and_desc(app, desc, 4096);
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printf("%s\n%s\n%s\n%s\n%s\n", st_icon, app_icon, app, app, desc);
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}
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int main(void) {
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if(!getenv("APPS")) {
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fprintf(stderr, "ERROR: \"APPS\" environment variable isn't set!\n");
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return 1;
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}
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if(!getenv("DIRECTORY")) {
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fprintf(stderr, "ERROR: \"DIRECTORY\" environment variable isn't set!\n");
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return 1;
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}
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char *separator="\n";
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char *parsed;
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parsed=strtok(getenv("APPS"), separator);
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while(parsed!=NULL) {
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print_all(parsed);
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parsed=strtok(NULL, separator);
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}
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return 0;
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}
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/*** REQUIRED OUTPUT ***
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* 1) status icon
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* 2) app icon
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* 3) app name
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* 4) app folder name (in ~/pi-apps/apps)
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* 5) status and short description
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***********************/
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/* LOOP OVER EVERY APP IN $HOME/PI-APPS/APPS *
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char *home=getHomePath();
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char path[strlen(home)+20];
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str_zero(path);
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snprintf(path, strlen(home)+20, "%s/pi-apps/apps", home);
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DIR *dir;
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struct dirent *d;
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dir=opendir(path);
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if(!dir) {
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fprintf(stderr, "ERROR: failed to open directory \"%s\"!\n", path);
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} else {
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while((d=readdir(dir))!=NULL) {
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if(strcmp(d->d_name, ".")&&strcmp(d->d_name, "..")&&strcmp(d->d_name, "template")) {
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print_all(d->d_name);
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}
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}
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closedir(dir);
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}
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**************************************************/
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/*********************************************
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void remove_all_chars(char* str, char c) {
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char *pr = str, *pw = str;
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while (*pr) {
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*pw = *pr++;
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pw += (*pw != c);
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}
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*pw = '\0';
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}
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***********************************************/
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