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countrust.c
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countrust.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <regex.h>
#include <errno.h>
#include <ctype.h>
#define MAX_PATH_LENGTH 1024
#define MAX_REPO_URL_LENGTH 256
void count_rust_lines(const char *file_path, int *total_lines) {
if (file_path == NULL) {
return;
}
FILE *file = fopen(file_path, "r");
if (!file) {
perror("Failed to open file");
return;
}
char line[MAX_PATH_LENGTH];
regex_t single_comment_pattern;
if (regcomp(&single_comment_pattern, "^\\s*//", REG_EXTENDED) != 0) {
fprintf(stderr, "Failed to compile single comment pattern\n");
fclose(file);
return;
}
while (fgets(line, sizeof(line), file)) {
(*total_lines)++;
if (regexec(&single_comment_pattern, line, 0, NULL, 0) == 0) {
continue;
}
char *stripped_line = line;
while (*stripped_line && isspace(*stripped_line)) stripped_line++;
if (*stripped_line) {
(*total_lines)++;
}
}
regfree(&single_comment_pattern);
fclose(file);
}
void traverse_repo(const char *repo_path, int *total_lines) {
if (repo_path == NULL) {
return;
}
struct dirent *entry;
DIR *dp = opendir(repo_path);
if (dp == NULL) {
perror("opendir");
return;
}
while ((entry = readdir(dp))) {
if (entry == NULL) {
break;
}
char path[MAX_PATH_LENGTH];
if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0) continue;
snprintf(path, sizeof(path), "%s/%s", repo_path, entry->d_name);
struct stat statbuf;
if (stat(path, &statbuf) == -1) {
perror("stat");
continue;
}
if (S_ISREG(statbuf.st_mode) && strcmp(entry->d_name + strlen(entry->d_name) - 3, ".rs") == 0) {
count_rust_lines(path, total_lines);
} else if (S_ISDIR(statbuf.st_mode)) {
traverse_repo(path, total_lines);
}
}
closedir(dp);
}
void clone_repo(const char *repo_url, const char *dest_dir) {
if (repo_url == NULL || dest_dir == NULL) {
return;
}
char command[MAX_PATH_LENGTH];
snprintf(command, sizeof(command), "git clone %s %s", repo_url, dest_dir);
if (system(command) != 0) {
fprintf(stderr, "Failed to clone repository: %s\n", command);
}
}
int main() {
char input[MAX_PATH_LENGTH];
printf("Enter the repository URL or directory path: ");
if (scanf("%1023s", input) != 1) {
fprintf(stderr, "Failed to read input\n");
return 1;
}
if (strstr(input, "http://") == input || strstr(input, "https://") == input || strstr(input, "git@") == input) {
const char *temp_dir = "/tmp/repo_clone";
if (mkdir(temp_dir, 0777) && errno != EEXIST) {
perror("mkdir");
return 1;
}
clone_repo(input, temp_dir);
int total_lines = 0;
traverse_repo(temp_dir, &total_lines);
printf("Total lines of Rust code: %d\n", total_lines);
char command[MAX_PATH_LENGTH];
snprintf(command, sizeof(command), "rm -rf %s", temp_dir);
if (system(command) != 0) {
fprintf(stderr, "Failed to remove temporary directory: %s\n", command);
}
} else {
int total_lines = 0;
traverse_repo(input, &total_lines);
printf("Total lines of Rust code: %d\n", total_lines);
}
return 0;
}