Fix bug in directory creation

I should’ve tested this before I released it.

Makefile

@@ -1,5 +1,5 @@
 # Configure here
-VERSION := 1.1
+VERSION := 1.1.1
 REDBEAN_VERSION := 3.0beta
 OUTPUT := werehouse.com
 SRV_DIR := srv
@@ -117,6 +117,9 @@ CSSO_PATH := $(shell which csso)
 
 build: $(OUTPUT)
 
+release: build
+	cp $(OUTPUT) $(patsubst %.com,%-$(VERSION).com,$(OUTPUT))
+
 # This is below build so that build is still the default target.
 include Makefile.secret
 
@@ -135,7 +138,7 @@ check-format:
 format:
 	stylua src lib test
 
-.PHONY: build clean check check-format test format
+.PHONY: build clean check check-format test format release
 
 # Don't delete any of these if make is interrupted
 .PRECIOUS: $(SRV_DIR)/. $(SRV_DIR)%/.

lib/db.lua

@@ -1092,7 +1092,7 @@ local queries = {
 
 local function mkdir()
     local ok, err = unix.mkdir("./" .. DB_DIR, 0700)
-    if not ok and err == unix.EEXIST then
+    if not ok and err and err:errno() == unix.EEXIST then
         return true
     elseif not ok then
         return nil, err