git.cpp

#include "shell.h"
#include <cstdio>
#include <sys/resource.h>
#include <libgen.h>


int find_git_root(const char *cwd, char *git_path) {
    char current[1024];
    strncpy(current, cwd, sizeof(current));

    while (strcmp(current, "/") != 0) {
        snprintf(git_path, 1024, "%s/.git", current);
        struct stat st;
        if (stat(git_path, &st) == 0)
            return 1;

        char temp[1024];
        strncpy(temp, current, sizeof(temp));
        char *parent = dirname(temp);
        if (strcmp(parent, current) == 0) break;
        strncpy(current, parent, sizeof(current));
    }
    return 0;
}


void get_git_branch(const char *git_path, char *branch){
    char head_path[1024];
    snprintf(head_path, sizeof(head_path), "%s/HEAD", git_path);

    FILE *file = fopen(head_path, "r");
    if (!file) return;

    char line[256];
    fgets(line, sizeof(line), file);
    fclose(file);

    strncpy(branch, line + 16, 256);
    branch[strcspn(branch, "\n")] = '\0';
}

void get_time(char *buf){
    time_t now = time(NULL);
    struct tm *t = localtime(&now);
    strftime(buf, 6, "%H:%M", t);
}

int get_git_status(const char *git_path) {
    FILE *file = popen("git status --porcelain", "r");
    if (!file) return 1;

    char buf[256];
    if (fgets(buf, sizeof(buf), file) == NULL) {
        pclose(file);
        return 1;  // clean
    }
    pclose(file);
    return 0;  // changes
}