Initial commit

hooks/handlers/session_start_handler.rb

@@ -0,0 +1,84 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'date'
+require 'claude_hooks'
+
+# SessionStart Handler
+#
+# PURPOSE: Initialize session state, setup logging, prepare environment
+# TRIGGERS: When a new Claude Code session begins
+#
+# SETTINGS.JSON CONFIGURATION:
+# {
+#   "hooks": {
+#     "SessionStart": [{
+#       "matcher": "",
+#       "hooks": [{
+#         "type": "command",
+#         "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/entrypoints/session_start.rb"
+#       }]
+#     }]
+#   }
+# }
+
+class SessionStartHandler < ClaudeHooks::SessionStart
+  def call
+    log "Session starting for project: #{project_name}"
+
+    backup_projects_directory
+    acknowledge_current_date
+
+    allow_continue!
+    suppress_output!
+
+    output_data
+  end
+
+  private
+
+  def project_name
+    File.basename(cwd || Dir.pwd)
+  end
+
+  def backup_projects_directory
+    source_dir = File.expand_path('~/.claude/projects')
+    backup_dir = File.expand_path('~/backups/claude/projects')
+
+    if Dir.exist?(source_dir)
+      log 'Backing up projects directory to ~/backups/claude/projects'
+
+      # Create backup directory if it doesn't exist
+      system('mkdir', '-p', backup_dir)
+
+      # Remove existing backup and copy fresh
+      system('rm', '-rf', backup_dir) if Dir.exist?(backup_dir)
+
+      # Copy the projects directory
+      if system('cp', '-r', source_dir, backup_dir)
+        log 'Projects directory backup completed successfully'
+      else
+        log 'Warning: Projects directory backup failed'
+      end
+    else
+      log 'No projects directory found to backup'
+    end
+  end
+
+  def acknowledge_current_date
+    # Add timestamp to backend context only
+    current_time = Time.now.strftime('%B %d, %Y at %I:%M %p %Z')
+    day_of_week = Date.today.strftime('%A')
+
+    # Use additionalContext for Claude instructions (will be minimally visible)
+    context_message = "Current local date and time: #{day_of_week}, #{current_time}"
+    add_additional_context!("#{context_message}. Acknowledge the current date and time in your first response.")
+  end
+end
+
+# Testing support - run this file directly to test with sample data
+if __FILE__ == $PROGRAM_NAME
+  ClaudeHooks::CLI.test_runner(SessionStartHandler) do |input_data|
+    input_data['session_id'] = 'test-session-01'
+  end
+end