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Make detached-log line buffered

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After redirecting stdout and stderr to the log file, they become block
buffered. This results in a (temporarily) incomplete log and becomes
particularly annoying when kitty crashes/hangs and has to be killed, as
the error messages are not flushed then and thus lost.
This commit is contained in:
Julian Prein
2025-08-26 14:35:37 +02:00
parent 518e06cfa4
commit 3e26d90648
1 changed files with 1 additions and 1 deletions
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2
kitty/launcher/main.c
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@@ -401,7 +401,7 @@ handle_fast_commandline(CLISpec *cli_spec, const char *instance_group_prefix) {
perror("failed to create a pipe"); exit(1);
}
#define reopen_or_fail(path, mode, which) { errno = 0; if (freopen(path, mode, which) == NULL) { int s = errno; fprintf(stderr, "Failed to redirect %s to %s with error: ", #which, path); errno = s; perror(NULL); exit(1); } }
#define reopen_or_fail(path, mode, which) { errno = 0; if (freopen(path, mode, which) == NULL) { int s = errno; fprintf(stderr, "Failed to redirect %s to %s with error: ", #which, path); errno = s; perror(NULL); exit(1); } setlinebuf(which); }
if (!(opts.session && ((opts.session[0] == '-' && opts.session[1] == 0) || strcmp(opts.session, "/dev/stdin") == 0)))
reopen_or_fail("/dev/null", "rb", stdin);
if (!detached_log || !detached_log[0]) detached_log = "/dev/null";