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Add json-log-path setting

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This setting specifies a path (which can be a regular file or Unix
domain socket) that receives a copy of all Nix log messages (in JSON
format).
This commit is contained in:
Eelco Dolstra 2025-04-11 16:45:59 +02:00 • committed by Jörg Thalheim
parent 0087188d47
commit 7240fb198f
8 changed files with 200 additions and 5 deletions
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9
tests/functional/logging.sh
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@ -33,3 +33,12 @@ if isDaemonNewer "2.26"; then
# Build works despite ill-formed structured build log entries.
expectStderr 0 nix build -f ./logging/unusual-logging.nix --no-link | grepQuiet 'warning: Unable to handle a JSON message from the derivation builder:'
fi
# Test json-log-path.
if [[ "$NIX_REMOTE" != "daemon" ]]; then
clearStore
nix build -vv --file dependencies.nix --no-link --json-log-path "$TEST_ROOT/log.json" 2>&1 | grepQuiet 'building.*dependencies-top.drv'
jq < "$TEST_ROOT/log.json"
grep '{"action":"start","fields":\[".*-dependencies-top.drv","",1,1\],"id":.*,"level":3,"parent":0' "$TEST_ROOT/log.json" >&2
(( $(grep '{"action":"msg","level":5,"msg":"executing builder .*"}' "$TEST_ROOT/log.json" | wc -l) == 5 ))
fi