slack-sieve/docs/HANDOFF.md

slack-sieve — handoff

Repo: https://git.levkin.ca/ilia/slack-sieve (public)
Clone: git clone git@git.levkin.ca:ilia/slack-sieve.git
Last updated: 2026-05-29

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What this is

Local triage UI for migrating Levkin Slack (levkine.slack.com) → homelab Mattermost (https://slack.levkin.ca, VM 10.0.10.237).

Pipeline:

Official Slack export (JSON)
    → make hydrate          # __uploads/ via xoxe URLs in export
    → make preset-skips     # optional noise-channel skips
    → make review           # manifest.json (gitignored)
    → prepare-export        # TODO — filtered Slack-shaped folder/zip
    → mmetl transform slack
    → mmctl import

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Data on disk (Mac)

Path	Role
~/Downloads/Levkin Slack export Sep 29 2016 - May 27 2026	Raw official export (~27MB JSON only)
~/Downloads/Levkin Slack export enriched	Use for review — JSON + __uploads/ (~1109 files)
~/Documents/code/slack-sieve/manifest.json	Triage decisions (local only, not in git)

Hydrate copied 1109 / 1122 attachments; 13 old files returned HTTP 401 (expired export token).

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Commands

cd ~/Documents/code/slack-sieve

export SLACK_EXPORT_PATH="$HOME/Downloads/Levkin Slack export enriched"
make review              # http://127.0.0.1:8765

make hydrate             # re-download attachments if needed
make preset-skips        # apply presets/levkin-skips.json (safe to re-run; keeps your channel decisions)

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Review progress (manifest snapshot)

As of preset + partial manual review:

Status	Count	Channels
skip (preset Tier A/B)	22	#jewbottest, #meetings, #help, #baby, #garden, #recipes, #grants, #integromat, #clickup, #general, #after-school-activities, #cleaner, #medical, #purchase, #temp, #viewings, #moishe, #520steeles, #29wilson, #york, #jam, Reading List
import	1	#153niagara
partial (cherry-pick)	3	#122harmony, #6keefer, #zoey
undecided	14	See review order below

Refresh counts after more review:

python3 -c "
import json
from pathlib import Path
m = json.loads(Path('manifest.json').read_text())
from collections import Counter
c = Counter(v.get('status','?') for v in m.get('channels',{}).values())
print(dict(c))
"

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Suggested review order

1. #284richmond → #45ritson → finish #122harmony, #6keefer, #zoey (partial)
2. #banking → #realestate → #airbnb
3. #izik → #levkin
4. Tier D (later): #random, #professional, #parenting, #adhd, #baking-biz, #standup, #zane

Inside a channel

• Shift+S — skip whole channel
• Shift+I — import whole channel
• Cherry-pick mode — only checked messages export (use Import whole thread on parent)
• Skip: join/leave noise, bot posts, bare “ok” / link-only
• Keep: attachments, leases, repairs, banking, decisions with dates/names

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Presets

presets/levkin-skips.json — Tier A/B channel names for make preset-skips.
Copy and edit for another workspace.

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UI / server notes

• Port: 8765 (SLACK_IMPORT_PORT)
• Attachments: served at /uploads/… and /api/file-download?file_id=…
• DOCX preview: server-side + browser mammoth; spaces in filenames need URL decode (fixed in server)
• Restart after code changes: make review (kill old process on 8765 if needed)

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What not to use

Tool	Why
slack-advanced-exporter + rotating xoxe.xoxp token	Token format rejected; enrich zip stayed ~4MB
slackdump hydrate	Rejects ?token=xoxe-… URLs; use this repo’s make hydrate instead
slackdump browser login	Failed in headless/automated runs; not required if official export exists

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TODO (next implementer)

1. scripts/prepare-export.py — read manifest.json, emit filtered Slack export dir/zip (__uploads/ + selected JSON days, thread parents included).
2. Pilot import — one small channel through mmetl → mmctl on Mattermost VM; verify threads, files, users.
3. User mapping — optional fetch-emails or Slack ID → Mattermost username map for mmetl.
4. Makefile make prepare-export + doc section in README.

Mattermost / homelab

• SSO: Authentik — see ansible docs/guides/mattermost-authentik-gitlab-oauth.md
• Import docs: https://docs.mattermost.com/administration-guide/onboard/migrate-from-slack.html

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Repo layout

slack-sieve/
  server.py           # HTTP API + static UI
  slack_export.py     # Parse export, file index, search
  static/             # Review UI
  scripts/
    hydrate-export.sh
    preset-skips.py
  presets/
    levkin-skips.json
  manifest.json       # gitignored — your work in progress
  docs/
    HANDOFF.md        # this file

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Moved from ansible

Slack import tooling was removed from git@git.levkin.ca:ilia/ansible.git (2026-05-29). Ansible guide pointer: docs/guides/slack-mattermost-import.md.

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Security

• Do not commit manifest.json or Slack export folders.
• Rotate any Slack tokens/cookies pasted in chat during setup.
• ~/.config/hermes/gitea.env used for Gitea API only — unrelated to Slack.