Add pg-status: PostgreSQL instance monitoring utility - #26
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…state Read-only tool that discovers PostgreSQL and Postgres Pro 1C instances on the host (both the postgrespro-<ver>[@PORT] scheme and Debian's postgresql@<ver>-<cluster>) and prints, per instance: running/stopped status, port, data directory and its on-disk size, plus — when running — version, uptime, connections, total database weight, cache hit ratio, commit/rollback and a size-sorted list of databases. Standard library only; connects via psql peer-auth as postgres. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KVXrszT51udmuntdfAHMVo
…o-diag.sh The Lint workflow was failing on main (SC2318, SC2034, SC2010), which blocked CI on this branch too. Split multi-variable local declarations so dependent assignments take effect, drop the unused tmpl capture, and replace `ls | grep` with a glob loop. No behaviour change. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KVXrszT51udmuntdfAHMVo
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Summary
Add
pg-status, a read-only Go utility for monitoring PostgreSQL and Postgres Pro instances on a host. The tool discovers instances via systemd, reports their status, and collects detailed statistics from running servers.Key Changes
New utility:
pgsql/pg-status/main.go— complete implementation with ~574 linespsql: version, uptime, connections, database sizes, cache hit ratio, transaction countsNO_COLORsupport-pflag) for non-systemd scenariosrunuser/sudo) orpostgresuser for peer authenticationDocumentation:
pgsql/pg-status/README.md— usage guide with examples and dependenciesTests:
pgsql/pg-status/main_test.go— unit tests for utility functions (human,duration,engineLabel,unitBin)Module file:
pgsql/pg-status/go.mod— Go module definition (no external dependencies, uses only stdlib)Index update:
pgsql/README.md— added reference to new utilityNotable Implementation Details
ss, postgresql.conf, PGPORT environment variable)https://claude.ai/code/session_01KVXrszT51udmuntdfAHMVo