From 34778ac3d1738a608257dcc8e8671145779624f1 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Sun, 5 Nov 2023 13:46:39 +0300
Subject: [PATCH] build system work

---
 README.md         |  2 +-
 build.sh          |  2 +-
 builder.c         | 72 +++++++++++++++++++++++++++++++++++++++++++++++
 config.h          |  2 +-
 coreutils/shred.c |  2 +-
 5 files changed, 76 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index a92161c..71cc180 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # micro-utils
 [Compile]
-	cc builder.c -obuilder
+	cc builder.c -Ilibmu -obuilder
 	./builder
 
 [or]
diff --git a/build.sh b/build.sh
index b214bcf..0e5300b 100755
--- a/build.sh
+++ b/build.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
-cc builder.c -Wall -Wextra -Os -s -pedantic -obuilder
+cc builder.c -Wall -Wextra -Os -s -pedantic -Ilibmu -obuilder
 ./builder && rm builder
diff --git a/builder.c b/builder.c
index ceb0dba..4c4f12a 100644
--- a/builder.c
+++ b/builder.c
@@ -1,7 +1,79 @@
 #include <stdio.h>
+#include <errno.h>
 #include <dirent.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "make_path.h"
 #include "config.h"
 
+void remove_suffix(char *base, const char *suffix) {
+	char *ptr = base + strlen(base) - strlen(suffix);
+	if (!strcmp(ptr, suffix))
+		*ptr = '\0';
+}
+
+char *MakePath(char *src) {
+	char *dup = strdup(src);
+	if (dup == NULL) {
+		fprintf(stderr, "builder: strdup failed");
+		exit(1);
+	}
+
+	remove_suffix(dup, ".c");
+	char *new_path = mu_make_path("builder", "../bin", dup);
+	if (new_path == NULL) {
+		free(dup);
+		exit(1);
+	}
+
+	free(dup);
+	return new_path;
+}
+
+void Compile(char *src) {
+	char *path = MakePath(src);
+
+	size_t len = strlen(CC) + strlen(CFLAGS) + strlen(src) + strlen(path) + 7;
+	char *arg = malloc(len + 1);
+	if (arg == NULL) {
+		free(path);
+		fprintf(stderr, "builder: malloc failed");
+		exit(1);
+	}
+
+	snprintf(arg, len, "%s %s %s -o %s", CC, CFLAGS, src, path);
+	system(arg);
+
+	free(arg);
+	free(path);
+}
+
+void ListAndCompile(const char *dir) {
+	chdir(dir);
+	DIR *dp = opendir(".");
+	if (dp == NULL) {
+		fprintf(stderr, "builder: %s\n", strerror(errno));
+		exit(1);
+	}
+
+	struct dirent *ep;
+	while ((ep = readdir(dp)) != NULL) {
+		if (!strcmp(ep->d_name, ".") || !strcmp(ep->d_name, ".."))
+			continue;
+
+		printf("[INFO] Building %s\n", ep->d_name);
+		Compile(ep->d_name);
+
+	}
+
+	closedir(dp);
+	chdir("..");
+}
+
 int main(void) {
+	for (size_t i = 0; i < sizeof(objects) / sizeof(char *); i++)
+		ListAndCompile(objects[i]);
+
 	return 0;
 }
diff --git a/config.h b/config.h
index d863928..1e7913a 100644
--- a/config.h
+++ b/config.h
@@ -9,6 +9,6 @@ const char *objects[] = {
 	"shell"
 };
 
-#define CFLAGS "-Wall -Wextra -pedantic -Os -s"
+#define CFLAGS "-Wall -Wextra -pedantic -Os -s -I ../libmu"
 #define CC "cc"
 #endif
diff --git a/coreutils/shred.c b/coreutils/shred.c
index 07f2699..59d45f9 100644
--- a/coreutils/shred.c
+++ b/coreutils/shred.c
@@ -59,7 +59,7 @@ int main(const int argc, const char **argv) {
 		else if (!strcmp(argv[i], "-z"))
 			z_flag = 1;
 
-		else if (!strncmp(argv[i], "-n=", 3)
+		else if (!strncmp(argv[i], "-n=", 3))
 			n_loops = atoi(argv[i] + 3);
 
 		else if (!strcmp(argv[i], "--help")) {