Initial commit

hooks/entrypoints/reset-baseline.sh

@@ -0,0 +1,86 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# reset-baseline.sh - Reset baseline script (NOT a hook)
+# Purpose: Reset baseline tree to current working tree state, update session state
+
+# Source library functions
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source "$SCRIPT_DIR/../lib/git-state.sh"
+source "$SCRIPT_DIR/../lib/state-manager.sh"
+
+# Read command-line argument (sessionId passed from command)
+session_id=${1:-}
+
+if [[ -z "$session_id" ]]; then
+  echo "⚠ Bumper Lanes: Error - No session ID provided"
+  exit 1
+fi
+
+# Load session state
+if ! session_state=$(read_session_state "$session_id" 2>/dev/null); then
+  # No active session - print error message
+  echo "⚠ Bumper Lanes: No active session found. Baseline reset skipped."
+  exit 0
+fi
+
+old_baseline=$(echo "$session_state" | jq -r '.baseline_tree')
+threshold_limit=$(echo "$session_state" | jq -r '.threshold_limit')
+created_at=$(echo "$session_state" | jq -r '.created_at')
+
+# Compute final diff stats (for reporting accepted changes)
+current_tree=$(capture_tree)
+if [[ -z "$current_tree" ]]; then
+  echo "⚠ Bumper Lanes: Failed to reset baseline. Please try again."
+  exit 1
+fi
+
+diff_output=$(compute_diff "$old_baseline" "$current_tree")
+
+# Parse diff stats inline (git diff-tree --shortstat format)
+# Format: "N files changed, X insertions(+), Y deletions(-)"
+files_changed=0
+lines_added=0
+lines_deleted=0
+
+if [[ "$diff_output" =~ ([0-9]+)\ file ]]; then
+  files_changed=${BASH_REMATCH[1]}
+fi
+if [[ "$diff_output" =~ ([0-9]+)\ insertion ]]; then
+  lines_added=${BASH_REMATCH[1]}
+fi
+if [[ "$diff_output" =~ ([0-9]+)\ deletion ]]; then
+  lines_deleted=${BASH_REMATCH[1]}
+fi
+
+total_lines=$((lines_added + lines_deleted))
+
+# Update session state with new baseline and clear incremental tracking
+new_baseline="$current_tree"
+write_session_state "$session_id" "$new_baseline"
+set_stop_triggered "$session_id" false
+# Reset incremental tracking: previous_tree = baseline, accumulated_score = 0
+update_incremental_state "$session_id" "$new_baseline" 0
+
+# Build confirmation message
+# Format timestamps for display
+old_timestamp=$(date -r "$(date -j -f "%Y-%m-%dT%H:%M:%SZ" "$created_at" +%s)" "+%Y-%m-%d %H:%M:%S" 2>/dev/null || echo "$created_at")
+new_timestamp=$(date "+%Y-%m-%d %H:%M:%S")
+
+# Truncate SHAs for display
+old_baseline_short="${old_baseline:0:7}"
+new_baseline_short="${new_baseline:0:7}"
+
+# Build multi-line confirmation message
+cat <<EOF
+✓ Baseline reset complete.
+
+Previous baseline: $old_baseline_short (captured $old_timestamp)
+New baseline: $new_baseline_short (captured $new_timestamp)
+
+Changes accepted: $files_changed files, $lines_added insertions(+), $lines_deleted deletions(-) [$total_lines lines total]
+
+You now have a fresh diff budget of $threshold_limit points. Pick up where we left off?
+EOF
+
+exit 0