# Session Log: J2J Jobs Housekeeping, Watermark-to-Counter (J2J-2), SDP-Aware Deployment (J2J-3)

**Date:** 2026-09-13
**Author:** GitHub Copilot CLI (Claude Sonnet 5)
**Requested by:** Tom Tyler

---

## Context

Started with a P4 login check and a review of `ai_dev_support/AGENTS.md`,
then listed the three open J2J- jobs on the Public Depot server (J2J-1,
J2J-2, J2J-3) via `ojobs` / `j2j_jobs_report.sh`.

## Work done

1. **Fixed `tools/j2j_jobs_report.sh` referencing a stale filename.**
   `env.sh` had been renamed to `dev_env.sh`, but the report script's
   `source` statement (and a `-man`-style comment) still pointed at the
   old name, causing a "No such file or directory" error on every run
   (harmless -- the rest of the script still worked -- but noisy). Fixed
   both references. Change **33765**.

2. **J2J-2: "Change Watermark from a file to a counter stored on the P4
   server."** Reviewed the job (title only, no description body) against
   `bin/sync_jira_to_p4jobs.sh` and confirmed the intent was unambiguous:
   the JIRA sync watermark was stored in `${StateDir}/last_sync_time`, a
   local file tying it to one host/checkout. Proposed and implemented:
   - New `WatermarkCounter` config key (default `jira-sync-watermark`).
   - `get_watermark()` / `save_watermark()` rewritten to use `p4 counter`
     via the existing `p4_cmd` wrapper instead of file I/O. An unset P4
     counter reads back as `"0"` (verified live against the Public Depot
     server) -- treated the same as "no watermark yet" for the
     `InitialLookbackSeconds` fallback.
   - Added `migrate_legacy_watermark_file()`, called from `init_state()`:
     seeds the counter from any pre-existing `last_sync_time` file on the
     first run after upgrade (only if the counter is still unset), then
     renames the file to `last_sync_time.migrated` so it isn't reread.
   - Setting/reading the counter needs only the `admin`/`super` P4 access
     this script's service account already requires for `p4 job -i -f`
     (per `check_p4_access()`) -- no new privilege grant needed.
   - Updated the `-man` `STATE FILES` section, the example config written
     by `--init`, and `docs/sync_jira_to_p4jobs_README.md` to match.
   - Verified: `bash -n` syntax check, `-man` text renders correctly, and
     `get_watermark`/`save_watermark` control flow unit-tested with a
     mocked `p4_cmd` (unset counter -> lookback fallback; save then get
     round-trips correctly). Could not test against the real Public Depot
     server directly under my own account -- `p4 protects -m` returns
     only `write` access there, and setting a counter returned "You don't
     have permission for this operation," which is expected/consistent
     with the script's own `admin`-required design.
   - Change **33766**.

3. **Caught a missed standing policy on my own submit.** A prior session
   (`SESSION_2026-09-01_p4_credentials_and_preflight_checks.md`)
   established: bump `declare Version="X.Y.Z"` in
   `sync_jira_to_p4jobs.sh` with every submit that touches it. Change
   33766 touched the script but I forgot the bump. Caught it by checking
   `p4 filelog` before writing this log, corrected with change **33767**
   (3.2.0 -> 3.3.0, minor: new backward-compatible config key + storage
   migration, no breaking CLI/behavior change for operators).

4. Linked jobs to changelists: `p4 fix -c 33766 J2J-2` and
   `p4 fix -c 33767 J2J-2` (both auto-closed J2J-2, since the changelists
   were already submitted at fix time).

5. **J2J-3: "Deploy anywhere: Be SDP-aware not SDP-dependent for
   deployment."** Reviewed `sync_jira_to_p4jobs.sh` and found the runtime
   defaults (`ConfigFile`, `LogsDir`, `StateDir`) already fell back
   gracefully from SDP env vars (`P4CSBIN`/`LOGS`/`P4TMP`) to generic
   `/tmp`-based paths -- but four gaps undercut "deploy anywhere":
   - `write_example_config()` hardcoded `StateDir=/p4/1/tmp/jira_sync`
     (an SDP instance-1 path) in the generated example config, instead of
     following the same env-var-aware fallback as the runtime default.
     Fixed: now commented out as an example, matching the existing
     `P4ConfigFile` treatment.
   - No startup visibility into which mode was active. Added a one-line
     preflight log message: `Deployment mode: SDP (detected: ...)` or
     `Deployment mode: standalone (... using generic /tmp-based
     fallbacks)`.
   - README was written entirely around SDP paths with no standalone
     guidance. Added a "Standalone (non-SDP) deployment" section (with a
     mode-comparison table and a numbered walkthrough) and a matching
     `DEPLOYMENT` section in `-man`.
   - Fixed a misleading comment overstating `python3` as an SDP-specific
     dependency (it isn't -- it's a generic, near-universal one).
   - No breaking changes; SDP remains the first-class default. Bumped
     Version 3.3.0 -> 3.4.0 (minor).
   - Verified: `bash -n` syntax check, `-man DEPLOYMENT` section renders
     correctly, and the deployment-mode detection logic was unit-tested
     standalone (`env -i bash ...` with/without the SDP vars set).
   - Change **33768**, split into its own pending changelist (separate
     from this session log file, per Tom's request to keep
     `ai_dev_support/...` changes independently submittable) via `p4
     change -o`/`p4 change -i` + `p4 reopen`. Linked with `p4 fix -c
     33768 J2J-3` (auto-closed J2J-3).
   - **Changelist-description correction:** submitting via `p4 submit -c
     33768` carried over a stale placeholder description
     ("...(work in progress)." plus a leftover "<enter description
     here>" line) from when the changelist was created. Fixed after the
     fact with `p4 change -u -i` (amends a submitted changelist's
     description; unlike `-f`, `-u` only requires being the changelist's
     owner, not `admin` access -- learned this from Tom after initially
     assuming it was unfixable without admin).

6. **Mac compatibility review** (no code changes -- verification only).
   Tom asked whether `sync_jira_to_p4jobs.sh` -- envisioned for the
   Public Depot server / an Ubuntu box -- would also work unmodified from
   this Mac checkout (`/Users/ttyler/pub/j2j`). Confirmed yes, and
   demonstrated it live:
   - Environment check: Homebrew `bash` 5.3.3 (not macOS-stock 3.2 --
     needed for `declare -A`/`local` etc.), Homebrew `flock` (not
     stock on macOS; fd-based `flock -n 9` usage tested directly and
     works), and Homebrew `python3` 3.14.5 all present.
   - The script's two BSD/GNU fallback pairs
     (`date -d ... || date -r ...` and `stat -c ... || stat -f ...`)
     were tested directly on this Mac's stock BSD `date`/`stat` --
     confirmed the GNU-style branch fails as expected and the BSD
     fallback branch succeeds.
   - `P4ConfigFile`'s default is derived from the script's own
     `BASH_SOURCE` location (`AppHome/secure/...`), not cwd or an SDP
     env var, so it "just works" from this checkout regardless of
     working directory.
   - Ran a live, read-only dry run from `/Users/ttyler/pub/j2j` using the
     pre-existing `secure/dryrun_test.cfg` (from the 2026-08-31 first-dry-
     run session): `bash bin/sync_jira_to_p4jobs.sh -C
     secure/dryrun_test.cfg -max 2 -v 4` (no `-y`, so no P4 writes were
     made). It connected to real JIRA, fetched real SDP issues, previewed
     two job upserts (`[NoOp] Would upsert: ...`), and read the new
     P4-counter watermark cleanly via the `bot_p4jira` service account
     (`P4 access level: admin.`) -- end-to-end confirmation that the
     J2J-2 watermark-counter change also works from this Mac.
   - One caveat noted, not a bug: `ConfigFile`'s own *default* path
     still falls back to `/p4/common/site/bin/...` (an SDP path that
     can't exist on a Mac) when `P4CSBIN` is unset -- `-C` must be passed
     explicitly on this platform. Already covered by the J2J-3
     "Standalone (non-SDP) deployment" README section added this
     session.

## Outstanding items / notes for next session

1. J2J-1 (P4Blog idea, filed 2026-08-30) and the `-batch` option design
   (captured in `SESSION_2026-09-01_p4_credentials_and_preflight_checks.md`)
   remain open/unimplemented.
2. J2J-2 and J2J-3 are both closed as of this session (changes 33765-33768).
3. No live (`-y`) run of `sync_jira_to_p4jobs.sh` has been done yet from
   any host, Mac or otherwise -- still previews only. Recommended next
   step remains the smallest possible blast radius (`-y -max 1`) when
   ready, per the 2026-09-01 session log.