print error context when opening files

Signed-off-by: Robert Günzler <r@gnzler.io>

1 files changed, 6 insertions, 2 deletions

diff --git a/src/main.zig b/src/main.zig
index 6ec4af6..2d055db 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -99,10 +99,14 @@ const File = struct {
     mtime: Io.Timestamp,
 
     fn init(io: Io, dir: Io.Dir, path: []const u8, options: ?Io.Dir.OpenFileOptions) !File {
-        const fd = try dir.openFile(io, path, options orelse .{
+        const fd = dir.openFile(io, path, options orelse .{
             .lock = .exclusive,
             .mode = .read_write,
-        });
+        }) catch |err| {
+            log.err("opening {s}: {any}", .{ path, err });
+            return err;
+        };
+
         var mmap = try fd.createMemoryMap(io, .{
             .len = try fd.length(io),
             // .protection = .{ .read = true, .write = false },