refactor for modularity

Makefile

@@ -1,6 +1,6 @@
 # Define the compiler and flags
 CC = gcc
-CFLAGS = -Wall -Wextra -Werror
+CFLAGS = -Wall -Wextra -std=c99
 
 # Define the target executable and the source files
 TARGET = caur
@@ -12,16 +12,12 @@ all: $(TARGET)
 
 # Link the object files into the target executable
 $(TARGET): $(OBJS)
-    $(CC) $(CFLAGS) -o $(TARGET) $(OBJS)
+	$(CC) $(CFLAGS) -o $(TARGET) $(OBJS) -lcurl
 
 # Compile the .c files into .o files
-%.o: %.c
-    $(CC) $(CFLAGS) -c $< -o $@
+src/%.o: src/%.c
+	$(CC) $(CFLAGS) -c $< -o $@
 
 # Clean up the build artifacts
 clean:
-    rm -f $(TARGET) $(OBJS)
-
-# Run the program
-run: $(TARGET)
-    ./$(TARGET)
+	rm -f $(TARGET) $(OBJS)

src/caur.h

@@ -0,0 +1,16 @@
+#ifndef CAUR_H
+#define CAUR_H
+
+#include <stdio.h>
+#include <curl/curl.h>
+
+// Function to write data to file
+size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream);
+
+// Function to download a package from the AUR
+int download_package(const char *package_name);
+
+// Function to perform a system upgrade
+int perform_system_upgrade();
+
+#endif // CAUR_H

src/download.c

@@ -0,0 +1,47 @@
+#include "caur.h"
+#include <string.h>
+
+#define AUR_PACKAGE_URL "https://aur.archlinux.org/cgit/aur.git/snapshot/"
+#define AUR_PACKAGE_URL_END ".tar.gz"
+
+size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream) {
+    size_t written = fwrite(ptr, size, nmemb, stream);
+    return written;
+}
+
+int download_package(const char *package_name) {
+    CURL *curl;
+    FILE *fp;
+    CURLcode res;
+    char url[256];
+    char outfilename[256];
+
+    snprintf(url, sizeof(url), "%s%s%s", AUR_PACKAGE_URL, package_name, AUR_PACKAGE_URL_END);
+    snprintf(outfilename, sizeof(outfilename), "%s%s", package_name, AUR_PACKAGE_URL_END);
+
+    curl = curl_easy_init();
+    if (curl) {
+        fp = fopen(outfilename, "wb");
+        if (fp == NULL) {
+            fprintf(stderr, "Failed to open file %s\n", outfilename);
+            return 1;
+        }
+
+        curl_easy_setopt(curl, CURLOPT_URL, url);
+        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
+        res = curl_easy_perform(curl);
+        curl_easy_cleanup(curl);
+        fclose(fp);
+
+        if (res != CURLE_OK) {
+            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
+            return 1;
+        }
+    } else {
+        fprintf(stderr, "Failed to init curl\n");
+        return 1;
+    }
+
+    return 0;
+}

src/main.c

@@ -1,5 +1,7 @@
 // Version: 0.1
-// caur - a simple command line utility for managing aur packages written in C hence the name lol
+// date created 8-31-24
+
+#include "caur.h"
 
 #include <stdio.h> // For standard input/output operations
 #include <stdlib.h> // For memory allocation, process control, and conversions
@@ -9,75 +11,11 @@
 // #include <unistd.h> //  For access to POSIX operating system API, useful for things like file operations and process management
 // #include <json-c/json.h> // Parsing packing information from the AUR packages
 
-// #define AUR_URL "https://aur.archlinux.org/rpc/?v=5&type=info&arg[]="
-// #define AUR_SEARCH_URL "https://aur.archlinux.org/rpc/?v=5&type=search&arg="
-#define AUR_PACKAGE_URL "https://aur.archlinux.org/cgit/aur.git/snapshot/"
-#define AUR_PACKAGE_URL_END ".tar.gz"
-
-// Function to write data to file
-size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream) {
-    size_t written = fwrite(ptr, size, nmemb, stream);
-    return written;
-}
-
-// Function to download a package from the AUR
-int download_package(const char *package_name) {
-    CURL *curl;
-    FILE *fp;
-    CURLcode res;
-    char url[256];
-    char outfilename[256];
-
-    // Construct the URL and output the file name
-    snprintf(url, sizeof(url), "%s%s%s", AUR_PACKAGE_URL, package_name, AUR_PACKAGE_URL_END);
-    snprintf(outfilename, sizeof(outfilename), "%s%s", package_name, AUR_PACKAGE_URL_END);
-
-    curl = curl_easy_init();
-    if (curl) {
-        fp = fopen(outfilename, "wb");
-        if (fp == NULL) {
-            fprintf(stderr, "Failed to open file %s\n", outfilename);
-            return 1;
-        }
-
-        curl_easy_setopt(curl, CURLOPT_URL, url);
-        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
-        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
-        res = curl_easy_perform(curl);
-        curl_easy_cleanup(curl);
-        fclose(fp);
-
-        if (res != CURLE_OK) {
-            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
-            return 1;
-        }
-    } else {
-        fprintf(stderr, "Failed to init curl\n");
-        return 1;
-    }
-
-    return 0;
-
-}
-
 int main(int argc, char *argv[]) {
-    // Check if the user provided a package name as an argument, otherwise, run the system upgrade command
+
     if (argc < 2) {
         printf("Performing system upgrade...\n");
-
-        // System upgrade command
-        int result = system("sudo pacman -Syu");
-
-        if (result == -1) {
-            fprintf(stderr, "Failed to execute system upgrade\n");
-            return 1;
-        } else if (WIFEXITED(result) && WEXITSTATUS(result) != 0) {
-            fprintf(stderr, "System upgrade failed with exit status %d.\n", WEXITSTATUS(result));
-            return 1;
-        }
-
-        printf("System upgrade completed successfully.\n");
-        return 0;
+        return perform_system_upgrade();
     }
 
     // The package name is the first argument after the program name

src/upgrade.c

@@ -0,0 +1,19 @@
+#include "caur.h"
+
+#include <stdlib.h>
+#include <sys/wait.h>
+
+int perform_system_upgrade() {
+    int result = system("sudo pacman -Syu");
+
+    if (result == -1) {
+        fprintf(stderr, "Failed to execute system upgrade\n");
+        return 1;
+    } else if (WIFEXITED(result) && WEXITSTATUS(result) != 0) {
+        fprintf(stderr, "System upgrade failed with exit status %d.\n", WEXITSTATUS(result));
+        return 1;
+    }
+
+    printf("System upgrade completed successfully.\n");
+    return 0;
+}