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util/json-log-path: document unix sockets and concurrency issues

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Jörg Thalheim 2025-05-23 10:34:49 +02:00
parent 7240fb198f
commit 7cef4559fe
1 changed files with 3 additions and 1 deletions
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4
src/libutil/include/nix/util/logging.hh
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@ -55,9 +55,11 @@ struct LoggerSettings : Config
Setting<Path> jsonLogPath{
this, "", "json-log-path",
R"(
A path to which JSON records of Nix's log output will be
A file or unix socket to which JSON records of Nix's log output will be
written, in the same format as `--log-format internal-json`
(without the `@nix ` prefixes on each line).
Concurrent writes to the same file by multiple Nix processes are not supported and
may result in interleaved or corrupted log records.
)"};
};