Create .cvn dir and empty index.

3 files changed, 40 insertions, 8 deletions

diff --git a/.gitignore b/.gitignore
index c803222..b398ecb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
-svs
+cvn
+.cvn/
+
 **/*.o
 **/*.out
 **/*.swp
diff --git a/Makefile b/Makefile
index 780931c..9104cae 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 CC = cc
-TARGET = svs
+TARGET = cvn
 
 SRC = main.c
 OBJ = $(SRC:.c=.o)
diff --git a/main.c b/main.c
index ddf094e..d9c3c53 100644
--- a/main.c
+++ b/main.c
@@ -1,8 +1,14 @@
+#include <errno.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 
-#define DEFAULT_BRANCH_NAME  "master"
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#define REPO   ".cvn"
+#define INDEX  "index"
 
 static inline void init(int argc, char *argv[]);
 
@@ -35,22 +41,46 @@ int main(int argc, char *argv[])
 	return 0;
 }
 
-void init(int argc, char *argv[])
+static inline void init(int argc, char *argv[])
 {
-	int opt;
 	char *branch;
+	int opt, repo_fd, idx_fd;
 
 	optind = 1; 
-	branch = DEFAULT_BRANCH_NAME;
+	branch = "master";
 
 	while ((opt = getopt(argc, argv, "b:")) != -1) {
 		switch (opt) {
 			case 'b': 
 				branch = optarg;
 				break;
-			default: return;
+			default: 
+				break;
         }
     }
-	printf("Initialized repository, branch: %s\n", branch);
+
+	if (mkdir(REPO, 0755) == -1) {
+		if (errno != EEXIST) {
+			perror("Failed to create repository");
+			return;
+		}
+	}
+
+	if ((repo_fd = open(REPO, O_RDONLY | O_DIRECTORY)) == -1) {
+		perror("Failed to open repository");
+		return;
+	}
+
+	if ((idx_fd = openat(repo_fd, INDEX, O_WRONLY | O_CREAT | O_EXCL, 0644)) == -1) {
+		if (errno != EEXIST) {
+			close(repo_fd);
+			perror("Failed to create index");
+			return;
+		}
+	}
+
+	close(idx_fd);
+	close(repo_fd);
+	printf("Initialized repository in %s\n", REPO);
 }