patch 8.2.4742: there is no way to start logging very early in startup
Problem: There is no way to start logging very early in startup.
Solution: Add the --log argument. Include the date in the start message in
the log file. Avoid a duplicate message when forking. Log an
executed shell command.
diff --git a/src/channel.c b/src/channel.c
index f8a8194..e971e17 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -178,7 +178,10 @@
if (log_fd != NULL)
{
- fprintf(log_fd, "==== start log session ====\n");
+ fprintf(log_fd, "==== start log session %s ====\n",
+ get_ctime(time(NULL), FALSE));
+ // flush now, if fork/exec follows it could be written twice
+ fflush(log_fd);
#ifdef FEAT_RELTIME
profile_start(&log_start);
#endif