Rename ".dircache" directory to ".git"

I started out calling the tool "dircache". That's clearly moronic.

README

@@ -122,7 +122,7 @@ it's not something "git" does for you.
 Another way of saying the same thing: "git" itself only handles content
 integrity, the trust has to come from outside. 
 
-	Current Directory Cache (".dircache/index")
+	Current Directory Cache (".git/index")
 
 The "current directory cache" is a simple binary file, which contains an
 efficient representation of a virtual directory content at some random

cache.h

@@ -64,7 +64,7 @@ struct cache_entry **active_cache;
 unsigned int active_nr, active_alloc;
 
 #define DB_ENVIRONMENT "SHA1_FILE_DIRECTORY"
-#define DEFAULT_DB_ENVIRONMENT ".dircache/objects"
+#define DEFAULT_DB_ENVIRONMENT ".git/objects"
 
 #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
 #define ce_size(ce) cache_entry_size((ce)->namelen)

init-db.c

@@ -10,8 +10,8 @@ int main(int argc, char **argv)
 	char *sha1_dir = getenv(DB_ENVIRONMENT), *path;
 	int len, i;
 
-	if (mkdir(".dircache", 0755) < 0) {
-		perror("unable to create .dircache");
+	if (mkdir(".git", 0755) < 0) {
+		perror("unable to create .git directory");
 		exit(1);
 	}
 

read-cache.c

@@ -364,7 +364,7 @@ int read_cache(void)
 		sha1_file_directory = DEFAULT_DB_ENVIRONMENT;
 	if (access(sha1_file_directory, X_OK) < 0)
 		return error("no access to SHA1 file directory");
-	fd = open(".dircache/index", O_RDONLY);
+	fd = open(".git/index", O_RDONLY);
 	if (fd < 0)
 		return (errno == ENOENT) ? 0 : error("open failed");
 

read-tree.c

@@ -68,15 +68,15 @@ static int remove_lock = 0;
 static void remove_lock_file(void)
 {
 	if (remove_lock)
-		unlink(".dircache/index.lock");
+		unlink(".git/index.lock");
 }
 
 int main(int argc, char **argv)
 {
 	int i, newfd;
 	unsigned char sha1[20];
 
-	newfd = open(".dircache/index.lock", O_RDWR | O_CREAT | O_EXCL, 0600);
+	newfd = open(".git/index.lock", O_RDWR | O_CREAT | O_EXCL, 0600);
 	if (newfd < 0)
 		usage("unable to create new cachefile");
 	atexit(remove_lock_file);
@@ -99,7 +99,7 @@ int main(int argc, char **argv)
 			usage("failed to unpack tree object %s", arg);
 	}
 	if (write_cache(newfd, active_cache, active_nr) ||
-	    rename(".dircache/index.lock", ".dircache/index"))
+	    rename(".git/index.lock", ".git/index"))
 		usage("unable to write new index file");
 	remove_lock = 0;
 	return 0;

update-cache.c

@@ -205,7 +205,7 @@ static void refresh_cache(void)
 /*
  * We fundamentally don't like some paths: we don't want
  * dot or dot-dot anywhere, and in fact, we don't even want
- * any other dot-files (.dircache or anything else). They
+ * any other dot-files (.git or anything else). They
  * are hidden, for chist sake.
  *
  * Also, we don't want double slashes or slashes at the
@@ -235,15 +235,15 @@ static int remove_lock = 0;
 static void remove_lock_file(void)
 {
 	if (remove_lock)
-		unlink(".dircache/index.lock");
+		unlink(".git/index.lock");
 }
 
 int main(int argc, char **argv)
 {
 	int i, newfd, entries;
 	int allow_options = 1;
 
-	newfd = open(".dircache/index.lock", O_RDWR | O_CREAT | O_EXCL, 0600);
+	newfd = open(".git/index.lock", O_RDWR | O_CREAT | O_EXCL, 0600);
 	if (newfd < 0)
 		usage("unable to create new cachefile");
 
@@ -284,7 +284,7 @@ int main(int argc, char **argv)
 			usage("Unable to add %s to database", path);
 	}
 	if (write_cache(newfd, active_cache, active_nr) ||
-	    rename(".dircache/index.lock", ".dircache/index"))
+	    rename(".git/index.lock", ".git/index"))
 		usage("Unable to write new cachefile");
 
 	remove_lock = 0;