76 lines
2.7 KiB
Bash
76 lines
2.7 KiB
Bash
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#!/usr/bin/env bash
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# lib/state.sh — Sync state management on orphan branch
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#
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# State persists on an orphan git branch (default: josh-sync-state),
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# committed and pushed to origin. Survives CI runner teardown.
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#
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# Storage layout:
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# origin/josh-sync-state/
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# <target>/<branch>.json (e.g., billing/main.json)
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#
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# JSON per state file:
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# {
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# "last_forward": { "mono_sha": "...", "subrepo_sha": "...", "timestamp": "...", "status": "..." },
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# "last_reverse": { "subrepo_sha": "...", "mono_sha": "...", "timestamp": "...", "status": "..." }
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# }
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#
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# Forward and reverse state are independent — updated with jq merge.
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#
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# Requires: lib/core.sh sourced first
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# Expects: JOSH_SYNC_TARGET_NAME, BOT_NAME, BOT_EMAIL (set by load_target)
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STATE_BRANCH="${JOSH_SYNC_STATE_BRANCH:-josh-sync-state}"
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# ─── State Key ──────────────────────────────────────────────────────
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# Namespace with target: "billing" + "main" → "billing/main"
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# Slashes in branch names converted to hyphens.
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state_key() {
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local branch_key="${1//\//-}"
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echo "${JOSH_SYNC_TARGET_NAME}/${branch_key}"
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}
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# ─── Read State ─────────────────────────────────────────────────────
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read_state() {
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local key
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key=$(state_key "$1")
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git fetch origin "$STATE_BRANCH" 2>/dev/null || true
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git show "origin/${STATE_BRANCH}:${key}.json" 2>/dev/null || echo '{}'
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}
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# ─── Write State ────────────────────────────────────────────────────
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# Uses git worktree to avoid touching the working tree.
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write_state() {
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local key
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key=$(state_key "$1")
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local state_json="$2"
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local tmp_dir
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tmp_dir=$(mktemp -d)
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# Try to check out existing state branch, or create orphan
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if git rev-parse "origin/${STATE_BRANCH}" >/dev/null 2>&1; then
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git worktree add "$tmp_dir" "origin/${STATE_BRANCH}" 2>/dev/null
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else
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git worktree add --detach "$tmp_dir" 2>/dev/null
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(cd "$tmp_dir" && git checkout --orphan "$STATE_BRANCH" && git rm -rf . 2>/dev/null || true)
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fi
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# Create target subdirectory and write state
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mkdir -p "$(dirname "${tmp_dir}/${key}.json")"
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echo "$state_json" | jq '.' > "${tmp_dir}/${key}.json"
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(
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cd "$tmp_dir"
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git add -A
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if ! git diff --cached --quiet 2>/dev/null; then
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git -c user.name="$BOT_NAME" -c user.email="$BOT_EMAIL" \
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commit -m "state: update ${key}"
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git push origin "HEAD:${STATE_BRANCH}" || log "WARN" "Failed to push state"
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fi
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)
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git worktree remove "$tmp_dir" 2>/dev/null || rm -rf "$tmp_dir"
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}
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