From f94e422b61f0d3c7145d85e5358339d5c35bc2c8 Mon Sep 17 00:00:00 2001
From: Nirbheek Chauhan <nirbheek@centricular.com>
Date: Thu, 29 Dec 2022 03:49:44 +0530
Subject: [PATCH] cargo_wrapper: Write to log with line-buffering

So we get log output while cargo is running, not just when it completes

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1031>
---
 cargo_wrapper.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/cargo_wrapper.py b/cargo_wrapper.py
index 942ed19b..e04ad39f 100644
--- a/cargo_wrapper.py
+++ b/cargo_wrapper.py
@@ -67,9 +67,9 @@ def generate_depfile_for(fpath):
 
 if __name__ == "__main__":
     opts = PARSER.parse_args()
-
-    logfile = open(opts.root_dir / 'meson-logs' /
-                   f'{opts.src_dir.name}-cargo-wrapper.log', 'w')
+    logdir = opts.root_dir / 'meson-logs'
+    logfile_path = logdir / f'{opts.src_dir.name}-cargo-wrapper.log'
+    logfile = open(logfile_path, mode='w', buffering=1)
 
     print(opts, file=logfile)
     cargo_target_dir = opts.build_dir / 'target'