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Rename reserved sequence/timestamp params to ottyl_seq/ottyl_ts; add ottyl_fmt

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Ticket 044: `sequence` and `timestamp` collided with ordinary user-declared
param names and didn't signal they're ottyl-owned, so they're renamed
(breaking change, no back-compat alias) to `ottyl_seq`/`ottyl_ts` in the
filter grammar (src/filter_parser.pest, src/filter_parser.rs), alert query
restriction/evaluation (src/alerts.rs), and the filter-bar docs/placeholder
in the webapp.

Also adds a new reserved param `ottyl_fmt` exposing which format a line was
auto-detected as ("json"/"logfmt"/"none") via a new
`crate::logfmt::detect_format`, wired into the same filter grammar and alert
restriction list as `ottyl_seq`/`ottyl_ts`. A mixed-format fixture test in
engine.rs verifies `ottyl_fmt` reflects the actual detected format per line.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XFUNZwCvz3kcod3352ZR2o
This commit is contained in:
Hugh Kaznowski
2026-09-06 01:50:16 +01:00
co-authored by Claude Sonnet 5
parent c84276937a
commit 534dc52e05
7 changed files with 179 additions and 41 deletions
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src/filter_parser.pest
+3 -2
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@@ -4,8 +4,9 @@
// - regex("...") raw-text regex search over log lines
// - metric_name[param] <op> value metric comparisons
// - json[field] <op> value JSON field comparisons (line parsed as JSON)
// - sequence <op> value reserved metric name (no [param])
// - timestamp <op> value reserved metric name (no [param])
// - ottyl_seq <op> value reserved metric name (no [param])
// - ottyl_ts <op> value reserved metric name (no [param])
// - ottyl_fmt <op> value reserved metric name (no [param])
// - `and` / `or` boolean combinators, with `and` binding tighter than `or`
// - parenthesized sub-expressions