feat: v1.27.0.0 migration — gstack-brain → gstack-artifacts rename

Journaled, interruption-safe migration. Six steps, each writes to
~/.gstack/.migrations/v1.27.0.0.journal on success; re-entry resumes
from the next un-done step. On final success, journal is replaced by
~/.gstack/.migrations/v1.27.0.0.done.

Steps:
1. gh_repo_renamed       gh/glab repo rename gstack-brain-$USER →
                         gstack-artifacts-$USER (idempotent: detects
                         already-renamed and skips)
2. remote_txt_renamed    mv ~/.gstack-brain-remote.txt → artifacts file,
                         rewriting URL path to match the new repo name
3. config_key_renamed    sed -i in ~/.gstack/config.yaml flips
                         gbrain_sync_mode → artifacts_sync_mode
4. claude_md_block       sed flips "- Memory sync:" → "- Artifacts sync:"
                         in cwd CLAUDE.md and ~/.gstack/CLAUDE.md
5. sources_swapped       gbrain sources add NEW (verify) → remove OLD
                         (codex Finding #6: add-before-remove ordering,
                         no downtime window). On remote-MCP mode, prints
                         commands for the brain admin instead of executing.
6. done                  touchfile + delete journal

User opt-out: any "n" or "skip-for-now" answer at the initial prompt
writes a marker file that prevents re-prompting; user can re-invoke
via /setup-gbrain --rerun-migration.

11 unit tests cover: nothing-to-migrate, GitHub happy path, idempotent
re-run, journal-resume mid-flight, remote-MCP print-only path,
add-before-remove ordering verification, add-fail → old source stays
registered, CLAUDE.md field rewrite.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Garry Tan
2026-05-06 09:35:48 -07:00
parent c80c9e5fbe
commit 935adf3a50
2 changed files with 634 additions and 0 deletions
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#!/usr/bin/env bash
# Migration: v1.27.0.0 — rename gstack-brain-* → gstack-artifacts-*
#
# Phase C of the v1.27.0.0 plan. Hard-rename, no compat shim. Steps:
# 1. gh_repo_renamed — gh/glab repo rename gstack-brain-$USER →
# gstack-artifacts-$USER (skipped on user opt-out)
# 2. remote_txt_renamed — mv ~/.gstack-brain-remote.txt → artifacts-remote.txt
# 3. config_key_renamed — rewrite gbrain_sync_mode → artifacts_sync_mode
# in ~/.gstack/config.yaml
# 4. claude_md_block_rewritten — find-and-replace any existing GBrain
# Configuration block that references "Memory sync"
# 5. sources_swapped — gbrain sources add new (verify) → remove old
# (codex Finding #6: add-before-remove ordering)
# 6. done — write touchfile, delete journal
#
# Interruption-safe via journal at ~/.gstack/.migrations/v1.27.0.0.journal:
# each step writes its name on success; re-entry resumes from the next un-done
# step. Done touchfile at ~/.gstack/.migrations/v1.27.0.0.done.
#
# Three host-mode branches per the plan:
# Local CLI + GitHub — all steps run automatically
# Local CLI + GitLab — same with glab repo rename
# Remote MCP only — steps 1-4 still run; step 5 prints commands for
# the brain admin to run on the brain host
#
# All steps are idempotent. Re-running after partial completion is safe.
set -euo pipefail
if [ -z "${HOME:-}" ]; then
echo " [v1.27.0.0] HOME is unset — skipping migration." >&2
exit 0
fi
# ---------------------------------------------------------------------------
# Configuration
# ---------------------------------------------------------------------------
GSTACK_HOME="${HOME}/.gstack"
SKILLS_DIR="${HOME}/.claude/skills"
BIN_DIR="${SKILLS_DIR}/gstack/bin"
CONFIG_BIN="${BIN_DIR}/gstack-config"
URL_BIN="${BIN_DIR}/gstack-artifacts-url"
MIGRATION_DIR="${GSTACK_HOME}/.migrations"
JOURNAL="${MIGRATION_DIR}/v1.27.0.0.journal"
DONE="${MIGRATION_DIR}/v1.27.0.0.done"
SKIPPED="${MIGRATION_DIR}/v1.27.0.0.skipped-by-user"
USER_NAME="${USER:-$(whoami 2>/dev/null || echo unknown)}"
OLD_REPO_NAME="gstack-brain-${USER_NAME}"
NEW_REPO_NAME="gstack-artifacts-${USER_NAME}"
OLD_REMOTE_TXT="${HOME}/.gstack-brain-remote.txt"
NEW_REMOTE_TXT="${HOME}/.gstack-artifacts-remote.txt"
OLD_SOURCE_ID="${OLD_REPO_NAME}"
NEW_SOURCE_ID="${NEW_REPO_NAME}"
# ---------------------------------------------------------------------------
# Journal helpers
# ---------------------------------------------------------------------------
mkdir -p "$MIGRATION_DIR"
# Already done? exit silently.
[ -f "$DONE" ] && exit 0
# User opted out previously? exit silently. (Re-invoke via
# `/setup-gbrain --rerun-migration` removes this marker.)
[ -f "$SKIPPED" ] && exit 0
journal_done() {
# Returns 0 if the named step is recorded as complete in the journal.
local step="$1"
[ -f "$JOURNAL" ] && grep -q "^${step}$" "$JOURNAL" 2>/dev/null
}
mark_done() {
local step="$1"
echo "$step" >> "$JOURNAL"
}
# ---------------------------------------------------------------------------
# Detect environment + ask once if there's anything to migrate
# ---------------------------------------------------------------------------
# Has the user ever opted into brain sync? Two signals:
# - presence of ~/.gstack-brain-remote.txt (legacy file)
# - presence of ~/.gstack/.git (brain-init ever ran)
HAS_LEGACY_STATE=0
[ -f "$OLD_REMOTE_TXT" ] && HAS_LEGACY_STATE=1
[ -d "$GSTACK_HOME/.git" ] && HAS_LEGACY_STATE=1
# If nothing to migrate, finalize silently.
if [ "$HAS_LEGACY_STATE" = "0" ]; then
echo " [v1.27.0.0] no legacy gstack-brain state detected — nothing to migrate." >&2
touch "$DONE"
rm -f "$JOURNAL" 2>/dev/null || true
exit 0
fi
# Ask once (idempotent: if journal exists from a prior partial run, skip ask).
if [ ! -f "$JOURNAL" ]; then
cat >&2 <<EOF
[v1.27.0.0] gstack-brain has been renamed to gstack-artifacts.
This is a clearer name for what it actually holds: CEO plans, designs,
/investigate reports, retros (i.e. artifacts, not behavioral memory).
This migration will:
1. Rename your private GitHub/GitLab repo "$OLD_REPO_NAME" → "$NEW_REPO_NAME"
2. mv ~/.gstack-brain-remote.txt → ~/.gstack-artifacts-remote.txt
3. Rename gbrain_sync_mode → artifacts_sync_mode in ~/.gstack/config.yaml
4. Update any "## GBrain Configuration" block in CLAUDE.md
5. Update gbrain federated source registration (local CLI mode)
OR print commands for your brain admin (remote MCP mode)
Each step is journaled so a Ctrl-C mid-flight is safe to re-run.
EOF
if [ -t 0 ]; then
printf " Proceed? [Y/n/skip-for-now]: " >&2
read -r REPLY || REPLY=""
case "$REPLY" in
n|N|no|No|NO)
echo " Skipping migration. Re-run via /setup-gbrain --rerun-migration." >&2
touch "$SKIPPED"
exit 0
;;
skip|skip-for-now|s)
echo " Skipping for now. Will ask again next upgrade." >&2
# Don't write SKIPPED — leave both old + new state untouched, ask again next time.
exit 0
;;
esac
else
# Non-interactive (CI, scripted upgrade): proceed automatically.
echo " (non-interactive: proceeding automatically)" >&2
fi
fi
# ---------------------------------------------------------------------------
# Detect host (gh / glab / manual) for steps 1 + 5
# ---------------------------------------------------------------------------
detect_host() {
# Read the canonical-form remote URL (the legacy file in the migration window).
local url=""
if [ -f "$OLD_REMOTE_TXT" ]; then
url=$(head -1 "$OLD_REMOTE_TXT" 2>/dev/null | tr -d '[:space:]' || echo "")
elif [ -f "$NEW_REMOTE_TXT" ]; then
url=$(head -1 "$NEW_REMOTE_TXT" 2>/dev/null | tr -d '[:space:]' || echo "")
fi
if echo "$url" | grep -q 'github\.com'; then
echo "github"
elif echo "$url" | grep -q 'gitlab'; then
echo "gitlab"
else
echo "manual"
fi
}
HOST=$(detect_host)
# ---------------------------------------------------------------------------
# Detect MCP mode (so step 5 knows whether to execute or print)
# ---------------------------------------------------------------------------
detect_mcp_mode() {
# Cheap probe: ~/.claude.json type field. Defense-in-depth tier 3 only;
# the migration script avoids invoking `claude` to keep upgrade fast.
if command -v jq >/dev/null 2>&1 && [ -f "$HOME/.claude.json" ]; then
local t
t=$(jq -r '.mcpServers.gbrain.type // .mcpServers.gbrain.transport // empty' "$HOME/.claude.json" 2>/dev/null)
case "$t" in
url|http|sse) echo "remote-http"; return ;;
stdio) echo "local-stdio"; return ;;
esac
fi
echo "none"
}
MCP_MODE=$(detect_mcp_mode)
# ---------------------------------------------------------------------------
# Step 1: gh/glab repo rename
# ---------------------------------------------------------------------------
if ! journal_done "gh_repo_renamed"; then
echo " [v1.27.0.0] step 1: rename remote repo $OLD_REPO_NAME$NEW_REPO_NAME" >&2
case "$HOST" in
github)
if command -v gh >/dev/null 2>&1 && gh auth status >/dev/null 2>&1; then
# Idempotent: if new name already exists, treat as success.
if gh repo view "$NEW_REPO_NAME" >/dev/null 2>&1; then
echo " repo already named $NEW_REPO_NAME on GitHub — no-op" >&2
mark_done "gh_repo_renamed"
else
if gh repo rename "$NEW_REPO_NAME" --repo "$OLD_REPO_NAME" --yes 2>/dev/null \
|| gh repo edit "$OLD_REPO_NAME" --name "$NEW_REPO_NAME" 2>/dev/null; then
echo " renamed on GitHub" >&2
mark_done "gh_repo_renamed"
else
echo " WARNING: gh rename failed (repo may not exist or permission denied)" >&2
echo " skipping step 1; subsequent steps still run" >&2
mark_done "gh_repo_renamed"
fi
fi
else
echo " gh CLI not available — skipping rename step (manual: gh repo rename ...)" >&2
mark_done "gh_repo_renamed"
fi
;;
gitlab)
if command -v glab >/dev/null 2>&1 && glab auth status >/dev/null 2>&1; then
if glab repo view "$NEW_REPO_NAME" >/dev/null 2>&1; then
echo " repo already named $NEW_REPO_NAME on GitLab — no-op" >&2
mark_done "gh_repo_renamed"
else
# GitLab CLI doesn't have a direct rename; user has to do it via API.
echo " glab repo rename isn't a single command on GitLab." >&2
echo " Manual: visit your GitLab project Settings → General → Advanced → Rename" >&2
echo " or use: glab api projects/:id -X PUT -f name=$NEW_REPO_NAME -f path=$NEW_REPO_NAME" >&2
mark_done "gh_repo_renamed"
fi
else
echo " glab not available — manual rename required" >&2
mark_done "gh_repo_renamed"
fi
;;
manual|*)
echo " unknown host (not github/gitlab) — manual rename required" >&2
mark_done "gh_repo_renamed"
;;
esac
fi
# ---------------------------------------------------------------------------
# Step 2: rename ~/.gstack-brain-remote.txt → ~/.gstack-artifacts-remote.txt
# ---------------------------------------------------------------------------
if ! journal_done "remote_txt_renamed"; then
echo " [v1.27.0.0] step 2: rename ~/.gstack-brain-remote.txt → ~/.gstack-artifacts-remote.txt" >&2
if [ -f "$OLD_REMOTE_TXT" ] && [ ! -f "$NEW_REMOTE_TXT" ]; then
# Update the URL inside if the rename happened on the host: replace
# gstack-brain-$USER with gstack-artifacts-$USER in the URL.
OLD_URL=$(head -1 "$OLD_REMOTE_TXT" 2>/dev/null)
NEW_URL=$(echo "$OLD_URL" | sed "s|/${OLD_REPO_NAME}|/${NEW_REPO_NAME}|; s|:${OLD_REPO_NAME}|:${NEW_REPO_NAME}|")
echo "$NEW_URL" > "$NEW_REMOTE_TXT"
chmod 600 "$NEW_REMOTE_TXT"
rm -f "$OLD_REMOTE_TXT"
echo " moved + URL rewritten: $OLD_URL$NEW_URL" >&2
elif [ -f "$NEW_REMOTE_TXT" ]; then
echo " new file already exists — no-op" >&2
rm -f "$OLD_REMOTE_TXT" 2>/dev/null || true
else
echo " no $OLD_REMOTE_TXT to migrate — no-op" >&2
fi
mark_done "remote_txt_renamed"
fi
# ---------------------------------------------------------------------------
# Step 3: rename gbrain_sync_mode → artifacts_sync_mode in config.yaml
# ---------------------------------------------------------------------------
if ! journal_done "config_key_renamed"; then
echo " [v1.27.0.0] step 3: rename gbrain_sync_mode → artifacts_sync_mode in config.yaml" >&2
CFG="$GSTACK_HOME/config.yaml"
if [ -f "$CFG" ]; then
# Atomic in-place rewrite with a tmpfile.
TMP=$(mktemp "${CFG}.v1.27.0.0.XXXXXX")
sed -e 's/^gbrain_sync_mode:/artifacts_sync_mode:/' \
-e 's/^gbrain_sync_mode_prompted:/artifacts_sync_mode_prompted:/' \
"$CFG" > "$TMP" && mv "$TMP" "$CFG"
echo " rewritten in place" >&2
else
echo " no $CFG to migrate — no-op" >&2
fi
mark_done "config_key_renamed"
fi
# ---------------------------------------------------------------------------
# Step 4: rewrite CLAUDE.md "## GBrain Configuration" block fields
# ---------------------------------------------------------------------------
if ! journal_done "claude_md_block_rewritten"; then
echo " [v1.27.0.0] step 4: rewrite CLAUDE.md GBrain Configuration block fields" >&2
# Look in cwd's CLAUDE.md (where /setup-gbrain wrote it) and ~/.gstack/CLAUDE.md
# if it exists. We can't know every project's CLAUDE.md; users rerunning
# /setup-gbrain in any project will overwrite that block fresh anyway.
for CMD in "$PWD/CLAUDE.md" "$GSTACK_HOME/CLAUDE.md"; do
[ -f "$CMD" ] || continue
if grep -q "## GBrain Configuration" "$CMD"; then
TMP=$(mktemp "${CMD}.v1.27.0.0.XXXXXX")
sed -e 's/^- Memory sync:/- Artifacts sync:/' "$CMD" > "$TMP" && mv "$TMP" "$CMD"
echo " rewritten field in $CMD" >&2
fi
done
mark_done "claude_md_block_rewritten"
fi
# ---------------------------------------------------------------------------
# Step 5: gbrain sources swap (add-new before remove-old per codex Finding #6)
# ---------------------------------------------------------------------------
if ! journal_done "sources_swapped"; then
echo " [v1.27.0.0] step 5: gbrain federated source rename" >&2
if [ "$MCP_MODE" = "remote-http" ]; then
# Print commands for the brain admin; we can't execute them locally.
cat >&2 <<EOF
Remote MCP detected. The local gbrain CLI can't update the brain's
federated source registration. Send this to your brain admin:
gbrain sources add ${NEW_SOURCE_ID} --path <new-clone-path> --federated
# verify the new source is searching as expected, then:
gbrain sources remove ${OLD_SOURCE_ID} --yes
(Add-new before remove-old keeps search uninterrupted.)
EOF
mark_done "sources_swapped"
elif command -v gbrain >/dev/null 2>&1 && [ -d "$GSTACK_HOME/.git" ]; then
# Local CLI mode. Sources point at the worktree path; rename the source
# ID add-then-remove. The actual on-disk worktree path stays the same.
WORKTREE="${GSTACK_BRAIN_WORKTREE:-$HOME/.gstack-brain-worktree}"
if gbrain sources list 2>/dev/null | grep -q "$OLD_SOURCE_ID"; then
if gbrain sources add "$NEW_SOURCE_ID" --path "$WORKTREE" --federated 2>/dev/null; then
echo " added $NEW_SOURCE_ID" >&2
if gbrain sources remove "$OLD_SOURCE_ID" --yes 2>/dev/null; then
echo " removed $OLD_SOURCE_ID" >&2
else
echo " WARNING: failed to remove $OLD_SOURCE_ID; both registered. Run manually:" >&2
echo " gbrain sources remove $OLD_SOURCE_ID --yes" >&2
fi
else
echo " WARNING: failed to add $NEW_SOURCE_ID. Old source still registered." >&2
fi
else
echo " no $OLD_SOURCE_ID source registered — no-op" >&2
fi
mark_done "sources_swapped"
else
echo " gbrain CLI not available or no ~/.gstack/.git — skipping" >&2
mark_done "sources_swapped"
fi
fi
# ---------------------------------------------------------------------------
# Step 6: finalize (touchfile + clear journal)
# ---------------------------------------------------------------------------
touch "$DONE"
rm -f "$JOURNAL"
echo " [v1.27.0.0] migration complete." >&2
exit 0