From 3ec07b5958b2731c4bb4355e1893437a0422e376 Mon Sep 17 00:00:00 2001
From: Not Zed <notzed@gmail.com>
Date: Thu, 10 Jun 2021 14:04:43 +0930
Subject: [PATCH] Change the way the db location is found. Don't auto-create
 any directories.

---
 dbindex.c      | 22 +++++++++++++++++++++-
 dbindex.h      |  5 ++++-
 disk-indexer.c |  2 --
 disk-util.c    |  2 --
 4 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/dbindex.c b/dbindex.c
index 76d6596..52fc2dc 100644
--- a/dbindex.c
+++ b/dbindex.c
@@ -19,6 +19,11 @@
 
 // TODO: list.size is really the next id, not size if list items are deleted
 
+#define _GNU_SOURCE
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
@@ -189,10 +194,22 @@ cmp_uint(const MDB_val *a, const MDB_val *b) {
                 *(unsigned int *)a->mv_data > *(unsigned int *)b->mv_data;
 }
 
-dbindex *dbindex_open(const char *path) {
+char *dbindex_home(void) {
+	char *home = getenv("HOME");
+	char *path = NULL;
+
+	if (!home || asprintf(&path, "%s/.local/lib/playerz/index", home) < 0)
+		abort();
+
+	return path;
+}
+
+dbindex *dbindex_open(const char *ipath) {
 	dbindex *db = calloc(sizeof(*db), 1);
 	int res;
 	MDB_txn *tx;
+	char *dpath = ipath ? NULL : dbindex_home();
+	const char *path = ipath ? ipath : dpath;
 
 	res = mdb_env_create(&db->env);
 	if (res)
@@ -276,6 +293,7 @@ dbindex *dbindex_open(const char *path) {
 	}
 
 	printf("dbindex open, disk.id=%d list.id=%d file.id=%d\n", db->diskid, db->listid, db->fileid);
+	free(dpath);
 
 	return db;
  fail:
@@ -284,6 +302,8 @@ dbindex *dbindex_open(const char *path) {
 	if (db->env)
 		mdb_env_close(db->env);
 	free(db);
+	free(dpath);
+
 	return NULL;
 }
 
diff --git a/dbindex.h b/dbindex.h
index a87f293..73d53fe 100644
--- a/dbindex.h
+++ b/dbindex.h
@@ -82,6 +82,9 @@ typedef struct dbindex dbindex;
 typedef struct MDB_txn dbtxn;
 typedef struct dbscan dbscan;
 
+// database location, default is ~/.local/lib/playerz/db.  free after use.
+char *dbindex_home(void);
+
 dbindex *dbindex_open(const char *path);
 void dbindex_close(dbindex *db);
 
@@ -211,4 +214,4 @@ dbfile *dbscan_list_entry_prev(dbscan *scan);
 int     dbscan_list_entry_seq(dbscan *scan);
 dbid_t  dbscan_list_entry_listid(dbscan *scan);
 
-#define MAIN_INDEX "/home/notzed/playerz.db"
+#define MAIN_INDEX NULL
diff --git a/disk-indexer.c b/disk-indexer.c
index ba8c0e3..5977f8b 100644
--- a/disk-indexer.c
+++ b/disk-indexer.c
@@ -700,8 +700,6 @@ int main(int argc, char **argv) {
 		argc -= 2;
 	}
 
-	mkdir(dbdir, 0700);
-
 	if (1) {
 		//suffix(dbdir);
 		search_suffix(dbdir);
diff --git a/disk-util.c b/disk-util.c
index 765089b..50fb969 100644
--- a/disk-util.c
+++ b/disk-util.c
@@ -58,8 +58,6 @@ int main(int argc, char **argv) {
 		argc -= 2;
 	}
 
-	mkdir(dbdir, 0700);
-
 	dbindex *db = dbindex_open(dbdir);
 
 	for (int i=1;i<argc;i++) {
-- 
2.39.2