Progress, started on an init command to initiate directories

Makefile

+appname = cms
+
 build:
-	gcc -o cms src/*.c -std=c99
+	gcc -o $(appname) src/*.c -std=c99
+
+install:
+	mv $(appname) /usr/bin/$(appname)
+
+	if [ -d /usr/share/$(appname) ]; then rm -r /usr/share/$(appname); fi
+	mkdir /usr/share/$(appname)
+	cp -r resources/* /usr/share/$(appname)

src/cms_files.h

+#ifndef CMS_FILES_H
+#define CMS_FILES_H
+
+//Directory for all resources, like default themes and such.
+#define CMS_FILE_RESOURCES "/usr/share/cms"
+
+//File which tells us if a directory is already initiated.
+#define CMS_FILE_INITED ".cmsinited"
+
+#endif

src/cms_log.c

+#include <stdio.h>
+#include <stdlib.h>
+
+#include "cms_log.h"
+
+void cms_log_panic(char* msg)
+{
+	fprintf(stderr, "Fatal error: %s\n", msg);
+	exit(1);
+}
+
+void cms_log_error(char* msg)
+{
+	fprintf(stderr, "Error: %s\n", msg);
+	exit(1);
+}

src/cms_log.h

+#ifndef CMS_LOG_H
+#define CMS_LOG_H
+
+//Panic and halt execution.
+void cms_log_panic(char* msg);
+
+//Halt execution.
+void cms_log_error(char* msg);
+
+#endif

src/cms_util.c

+#include <stdio.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "cms_util.h"
+
+int cms_util_file_exists(char* fname)
+{
+	FILE* f;
+	if (f = fopen(fname, "r"))
+	{
+		fclose(f);
+		return 1;
+	}
+
+	return 0;
+}
+
+void cms_util_file_create(char* fname)
+{
+	FILE* f = fopen(fname, "ab+");
+	fclose(f);
+}
+
+char* cms_util_join_paths(char* str1, char* str2)
+{
+	size_t len1 = strlen(str1);
+	size_t len2 = strlen(str2);
+
+	if (str1[len1 - 1] == '/')
+	{
+		len1 -= 1;
+	}
+
+	char* path = malloc((len1 + len2 + 1) * sizeof(char));
+
+	if (path == NULL)
+		return NULL;
+
+	memcpy(path, str1, len1); //First part
+	path[len1] = '/'; //Separator
+	memcpy(path + len1 + 1, str2, len2); //Second part
+	path[len1 + len2 + 1] = '\0'; //Null terminator
+
+	return path;
+}

src/cms_util.h

+#ifndef CMS_UTIL_H
+#define CMS_UTIL_H
+
+//Returns 1 if a file exists, 0 if it doesn't.
+int cms_util_file_exists(char* fname);
+
+//Create a file
+void cms_util_file_create(char* fname);
+
+//Joins together two paths.
+char* cms_util_join_paths(char* str1, char* str2);
+
+#endif

src/main.c

-int main(int argv, char** argc)
+#include <string.h>
+#include <stdio.h>
+
+#include "cms_util.h"
+#include "cms_log.h"
+#include "cms_files.h"
+
+int main(int argc, char** argv)
 {
+	if (argc < 2)
+	{
+		fprintf(stderr, "Usage: %s <init|build>\n", argv[0]);
+		return 1;
+	}
+
+	if (strcmp(argv[1], "init") == 0) //Initiate directory
+	{
+		if (argc != 3)
+		{
+			fprintf(stderr, "Usage: %s init <directory>\n", argv[0]);
+			return 1;
+		}
+
+		char* dirname = argv[2];
+
+		//Get the path of .cmsinited, which tells us
+		//whether or not the directory is already inited
+		char* initedPath = cms_util_join_paths(dirname, CMS_FILE_INITED);
+		if (initedPath == NULL)
+			cms_log_panic("Memory allocation failed.");
+
+		//Check if the .cmsinited file exists
+		if (cms_util_file_exists(initedPath))
+			cms_log_error("Directory already initiated.");
+
+		//Create .cmsinited file
+		cms_util_file_create(initedPath);
+	}
 
+	else if (strcmp(argv[1], "build") == 0) //Build
+	{
+	}
 }