fix: resolve compilation errors and add CI/CD / Release workflows

Author: AdityaPandey-DEV

Makefile

@@ -1,7 +1,7 @@
 # Advanced Mini Bash Shell Makefile
 
 CC = gcc
-CFLAGS = -Wall -Wextra -std=c99 -g -O2
+CFLAGS = -Wall -Wextra -std=gnu99 -g -O2
 LDFLAGS = 
 TARGET = mini-bash
 HEADERS_DIR = headers

headers/shell.h

@@ -1,19 +1,27 @@
 #ifndef SHELL_H
 #define SHELL_H
 
+#ifndef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+#endif
+
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 700
+#endif
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <sys/wait.h>
-#include <sys/types.h>
 #include <sys/stat.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <errno.h>
-#include <time.h>
-#include <limits.h>
+#include <sys/types.h>
+#include <sys/wait.h>
 #include <termios.h>
+#include <time.h>
+#include <unistd.h>
 
 // Maximum command length
 #define MAX_CMD_LEN 1024
@@ -23,22 +31,22 @@
 
 // Command structure
 typedef struct {
-    char **args;
-    int argc;
-    char *input_file;
-    char *output_file;
-    char *error_file;
-    int append_output;
-    int background;
+  char **args;
+  int argc;
+  char *input_file;
+  char *output_file;
+  char *error_file;
+  int append_output;
+  int background;
 } command_t;
 
 // Job structure
 typedef struct {
-    pid_t pid;
-    int job_id;
-    char *command;
-    int status; // 0: running, 1: stopped, 2: completed
-    time_t start_time;
+  pid_t pid;
+  int job_id;
+  char *command;
+  int status; // 0: running, 1: stopped, 2: completed
+  time_t start_time;
 } job_t;
 
 // Global variables

utils.c

@@ -1,91 +1,99 @@
 #include "headers/utils.h"
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
 
 // Expand tilde in path
-char* expand_tilde(char *path) {
-    if (!path) return NULL;
-    
-    if (path[0] == '~') {
-        char *home = getenv("HOME");
-        if (!home) {
-            return strdup(path); // Return original if HOME not set
-        }
-        
-        int home_len = strlen(home);
-        int path_len = strlen(path);
-        char *expanded = malloc(home_len + path_len);
-        
-        if (!expanded) {
-            return NULL;
-        }
-        
-        strcpy(expanded, home);
-        strcat(expanded, path + 1); // Skip the '~'
-        
-        return expanded;
+char *expand_tilde(char *path) {
+  if (!path)
+    return NULL;
+
+  if (path[0] == '~') {
+    char *home = getenv("HOME");
+    if (!home) {
+      return strdup(path); // Return original if HOME not set
     }
-    
-    return strdup(path);
+
+    int home_len = strlen(home);
+    int path_len = strlen(path);
+    char *expanded = malloc(home_len + path_len);
+
+    if (!expanded) {
+      return NULL;
+    }
+
+    strcpy(expanded, home);
+    strcat(expanded, path + 1); // Skip the '~'
+
+    return expanded;
+  }
+
+  return strdup(path);
 }
 
 // Get absolute path
-char* get_absolute_path(char *path) {
-    if (!path) return NULL;
-    
-    char *abs_path = malloc(PATH_MAX);
-    if (!abs_path) return NULL;
-    
-    if (realpath(path, abs_path) == NULL) {
-        free(abs_path);
-        return strdup(path); // Return original if realpath fails
-    }
-    
-    return abs_path;
+char *get_absolute_path(char *path) {
+  if (!path)
+    return NULL;
+
+  char *abs_path = malloc(PATH_MAX);
+  if (!abs_path)
+    return NULL;
+
+  if (realpath(path, abs_path) == NULL) {
+    free(abs_path);
+    return strdup(path); // Return original if realpath fails
+  }
+
+  return abs_path;
 }
 
 // Check if file is executable
 int is_executable(char *path) {
-    if (!path) return 0;
-    
-    struct stat st;
-    if (stat(path, &st) == 0) {
-        return (st.st_mode & S_IXUSR) || (st.st_mode & S_IXGRP) || (st.st_mode & S_IXOTH);
-    }
-    
+  if (!path)
     return 0;
+
+  struct stat st;
+  if (stat(path, &st) == 0) {
+    return (st.st_mode & S_IXUSR) || (st.st_mode & S_IXGRP) ||
+           (st.st_mode & S_IXOTH);
+  }
+
+  return 0;
 }
 
 // Print error message
-void print_error(char *msg) {
-    fprintf(stderr, "mini-bash: %s\n", msg);
-}
+void print_error(char *msg) { fprintf(stderr, "mini-bash: %s\n", msg); }
 
 // Print error message with errno
 void print_error_with_errno(char *msg) {
-    fprintf(stderr, "mini-bash: %s: %s\n", msg, strerror(errno));
+  fprintf(stderr, "mini-bash: %s: %s\n", msg, strerror(errno));
 }
 
 // String duplicate (for compatibility with older systems)
 #ifndef _POSIX_C_SOURCE
-char* strdup(const char *s) {
-    if (!s) return NULL;
-    
-    size_t len = strlen(s) + 1;
-    char *dup = malloc(len);
-    if (dup) {
-        memcpy(dup, s, len);
-    }
-    return dup;
+char *strdup(const char *s) {
+  if (!s)
+    return NULL;
+
+  size_t len = strlen(s) + 1;
+  char *dup = malloc(len);
+  if (dup) {
+    memcpy(dup, s, len);
+  }
+  return dup;
 }
 #endif
 
 // Free string array
 void free_string_array(char **arr, int count) {
-    if (!arr) return;
-    
-    for (int i = 0; i < count; i++) {
-        if (arr[i]) {
-            free(arr[i]);
-        }
+  if (!arr)
+    return;
+
+  for (int i = 0; i < count; i++) {
+    if (arr[i]) {
+      free(arr[i]);
     }
-    free(arr);
+  }
+  free(arr);
 }