Sheldon Finlay
17e5eb707f
Generator-evaluator architecture with iterative context-reset for long-running coding tasks. Ships as a Claude Code plugin — install with /plugin and use /agent-loop:init, /agent-loop:plan, /agent-loop:run.
84 lines
3.5 KiB
Bash
84 lines
3.5 KiB
Bash
#!/bin/bash
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# Branch archiving — archives previous run artifacts when the branch changes.
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# Preserves prd.json, progress.md, and contracts from the previous feature.
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#
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# Design: At the end of each run, snapshot_for_archive saves current artifacts
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# to .archive-staging/. On the next run, if the branch changed, check_archive
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# moves the snapshot to archive/ and cleans up. This avoids archiving the
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# WRONG artifacts (the new feature's) when prd.json has already been overwritten.
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LAST_BRANCH_FILE="$LOOP_DIR/.last-branch"
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STAGING_DIR="$LOOP_DIR/.archive-staging"
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# Snapshot current artifacts so they can be archived later if the branch changes.
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# Call this at the END of a successful run or before exit.
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snapshot_for_archive() {
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rm -rf "$STAGING_DIR"
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mkdir -p "$STAGING_DIR"
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[ -f "$LOOP_DIR/prd.json" ] && cp "$LOOP_DIR/prd.json" "$STAGING_DIR/"
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[ -f "$LOOP_DIR/progress.md" ] && cp "$LOOP_DIR/progress.md" "$STAGING_DIR/"
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[ -d "$LOOP_DIR/contracts" ] && cp -r "$LOOP_DIR/contracts" "$STAGING_DIR/"
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}
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# Check if we need to archive and do so if branch changed.
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# Reads the NEW branch from live prd.json and the OLD branch from the staging
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# snapshot (which was saved at the end of the previous run). This avoids the
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# bug where both branches read from the same (already-overwritten) prd.json.
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check_archive() {
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local current_branch
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current_branch=$(prd_branch_name 2>/dev/null)
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[ -z "$current_branch" ] && return
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# Determine the previous branch from the staging snapshot (most reliable)
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# or fall back to .last-branch file
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local last_branch=""
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if [ -f "$STAGING_DIR/prd.json" ]; then
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if command -v jq &>/dev/null; then
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last_branch=$(jq -r '.branchName // empty' "$STAGING_DIR/prd.json" 2>/dev/null)
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else
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last_branch=$(LOOP_PRD="$STAGING_DIR/prd.json" python3 -c "
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import json, os
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print(json.load(open(os.environ['LOOP_PRD'])).get('branchName', ''), end='')
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" 2>/dev/null)
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fi
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fi
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[ -z "$last_branch" ] && [ -f "$LAST_BRANCH_FILE" ] && last_branch=$(cat "$LAST_BRANCH_FILE")
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if [ -n "$last_branch" ] && [ "$last_branch" != "$current_branch" ]; then
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archive_run "$last_branch"
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fi
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echo "$current_branch" > "$LAST_BRANCH_FILE"
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}
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# Archive the previous run's staged artifacts (NOT current prd.json)
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archive_run() {
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local branch_name="$1"
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local feature_name
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feature_name=$(echo "$branch_name" | sed 's|.*/||')
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local archive_dir="$LOOP_DIR/archive/$(date +%Y-%m-%d)-${feature_name}"
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mkdir -p "$archive_dir"
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if [ -d "$STAGING_DIR" ]; then
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# Use the staged snapshot (correct artifacts from the previous run)
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cp -r "$STAGING_DIR"/* "$archive_dir/" 2>/dev/null || true
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rm -rf "$STAGING_DIR"
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else
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# Fallback: no snapshot exists (first run or upgrade from old version).
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# Current artifacts may belong to the new feature — archive what we have
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# but warn the user.
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log "WARNING: No archive snapshot found. Archiving current artifacts (may be from new feature)."
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[ -f "$LOOP_DIR/prd.json" ] && cp "$LOOP_DIR/prd.json" "$archive_dir/"
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[ -f "$LOOP_DIR/progress.md" ] && cp "$LOOP_DIR/progress.md" "$archive_dir/"
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[ -d "$LOOP_DIR/contracts" ] && cp -r "$LOOP_DIR/contracts" "$archive_dir/"
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fi
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# Clean up old run's artifacts (progress.md, contracts — NOT prd.json which belongs to new feature)
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rm -f "$LOOP_DIR/progress.md"
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rm -rf "$LOOP_DIR/contracts"
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log "Archived previous run to $archive_dir"
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}
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