Carlos Florêncio
125 lines
4.5 KiB
Go
125 lines
4.5 KiB
Go
package github
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import (
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"expvar"
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"strings"
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)
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const (
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reviewCleanupMetricClassAuth = "auth"
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reviewCleanupMetricClassOther = "other"
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)
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// expvar maps published at package init, exposed via stdlib's /debug/vars
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// handler in dev mode (AC-38). Process-local and dev-mode-visible only; the
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// durable, snapshot-checkable signals are the writer-health invariants
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// AC-36/AC-37, not these counters. Mirrors the label idiom in
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// internal/office/scheduler/metrics_vars.go.
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var (
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taskPROutcomeSyncsTotal = expvar.NewMap("github_task_pr_outcome_syncs_total")
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// authCircuitSkipsTotal and authCircuitResetsTotal are unlabeled counts
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// (no per-workspace label — workspace IDs must never be metric labels).
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// They bound the PR-monitor loop's auth/config circuit-breaker activity
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// (see poller_circuit.go): skips confirm a broken credential/config
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// stopped costing a GitHub call every cycle; resets confirm a
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// credential change (rotate/reconnect) is promptly detected.
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authCircuitSkipsTotal = expvar.NewInt("github_pr_watch_auth_circuit_skips_total")
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authCircuitResetsTotal = expvar.NewInt("github_pr_watch_auth_circuit_resets_total")
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prWatchActive = expvar.NewInt("github_pr_watch_active")
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prWatchSearching = expvar.NewInt("github_pr_watch_searching")
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prWatchDuplicates = expvar.NewInt("github_pr_watch_duplicates")
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prWatchOrphans = expvar.NewInt("github_pr_watch_orphans")
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canonicalPollRequests = expvar.NewInt("github_pr_watch_canonical_poll_requests_total")
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reviewCleanupCircuitSkipsTotal = expvar.NewMap("github_review_cleanup_circuit_skips_total")
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reviewCleanupCircuitResetsTotal = expvar.NewMap("github_review_cleanup_circuit_resets_total")
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reviewCleanupFailuresTotal = expvar.NewMap("github_review_cleanup_failures_total")
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reviewCleanupCoreQuotaSkipsTotal = expvar.NewInt("github_review_cleanup_core_quota_skips_total")
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)
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// outcomeMetricLabel builds a "k1=v1;k2=v2;..." label string for an expvar
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// map key, matching the idiom in internal/office/scheduler/metrics_vars.go.
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func outcomeMetricLabel(pairs ...string) string {
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if len(pairs)%2 != 0 {
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return ""
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}
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parts := make([]string, 0, len(pairs)/2)
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for i := 0; i < len(pairs); i += 2 {
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parts = append(parts, pairs[i]+"="+pairs[i+1])
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}
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return strings.Join(parts, ";")
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}
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// incTaskPROutcomeSync records whether a sync populated the outcome-field
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// group (AC-38). populated=false is the "the writer stopped" canary's raw
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// material; AC-36/AC-37 remain the durable signal.
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func incTaskPROutcomeSync(populated bool) {
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taskPROutcomeSyncsTotal.Add(outcomeMetricLabel("populated", boolLabel(populated)), 1)
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}
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func boolLabel(b bool) string {
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if b {
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return "true"
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}
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return "false"
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}
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// incAuthCircuitSkip records that a poll cycle skipped a workspace's PR
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// watches entirely because its auth/config circuit was still open.
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func incAuthCircuitSkip() {
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authCircuitSkipsTotal.Add(1)
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}
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// incAuthCircuitReset records a credential-fingerprint-triggered circuit
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// reset (rotate/reconnect/revoke-then-reconfigure detected).
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func incAuthCircuitReset() {
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authCircuitResetsTotal.Add(1)
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}
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func incReviewCleanupCircuitSkip(scope, class string) {
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if !validReviewCleanupMetricScope(scope) {
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return
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}
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reviewCleanupCircuitSkipsTotal.Add(outcomeMetricLabel("scope", scope, "class", boundedReviewCleanupMetricClass(class)), 1)
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}
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func incReviewCleanupCircuitReset(scope string) {
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if validReviewCleanupMetricScope(scope) {
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reviewCleanupCircuitResetsTotal.Add(outcomeMetricLabel("scope", scope), 1)
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}
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}
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func incReviewCleanupFailure(scope, class string) {
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if !validReviewCleanupMetricScope(scope) {
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return
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}
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reviewCleanupFailuresTotal.Add(outcomeMetricLabel("scope", scope, "class", boundedReviewCleanupMetricClass(class)), 1)
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}
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func incReviewCleanupCoreQuotaSkip() {
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reviewCleanupCoreQuotaSkipsTotal.Add(1)
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}
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func validReviewCleanupMetricScope(scope string) bool {
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return scope == "workspace" || scope == "record"
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}
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func boundedReviewCleanupMetricClass(class string) string {
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switch class {
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case reviewCleanupMetricClassAuth, "config", "transient", "rate_limit":
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return class
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default:
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return reviewCleanupMetricClassOther
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}
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}
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func recordPRWatchCardinality(cardinality PRWatchCardinality) {
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prWatchActive.Set(cardinality.Active)
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prWatchSearching.Set(cardinality.Searching)
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prWatchDuplicates.Set(cardinality.Duplicates)
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prWatchOrphans.Set(cardinality.Orphans)
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}
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func incCanonicalPollRequests(count int) {
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canonicalPollRequests.Add(int64(count))
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}
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