Utilitie scripts for development restructured

bin/monadic_dev

@@ -18,10 +18,14 @@ elif [ "$1" == "stop" ]; then
 elif [ "$1" == "restart" ]; then
   ./bin/monadic_dev restart --daemonize
   echo "Monadic script executed with 'restart' argument 🔄"
+elif [ "$1" == "export" ]; then
+  ./bin/monadic_dev export
+elif [ "$1" == "import" ]; then
+  ./bin/monadic_dev import
 elif [ "$1" == "status" ]; then
   ./bin/monadic_dev status
 else
-  echo "Usage: monadic_dev [start|stop|restart|debug]"
+  echo "Usage: monadic_dev [start|stop|restart|debug|status|export|import]"
   ./bin/monadic_dev status
 fi
 

docker/services/ruby/bin/monadic_dev

@@ -3,7 +3,6 @@
 # frozen_string_literal: false
 
 require "optimist"
-
 require_relative "../lib/monadic/version"
 
 # change current directory to the parent directory of the directory containing this file
@@ -13,6 +12,9 @@ DEFAULT_PORT = 4567
 
 PID_FILE = __dir__ + "/thin.pid"
 
+# Set the data directory $HOME/monadic/data
+DATA_DIR = File.expand_path(File.join(ENV["HOME"], "monadic", "data"))
+
 selenium_image = "selenium/standalone-chrome:latest"
 if `uname -s`.chomp.include? "Darwin"
   if `uname -m`.chomp == "arm64"
@@ -26,7 +28,7 @@ ENV["HOST_OS"] = `uname -s`.chomp
 # Parse command line options
 opts = Optimist.options do
   version Monadic::VERSION.to_s
-  banner "Usage: monadic [start|stop|restart] [options]"
+  banner "Usage: monadic [start|stop|restart|export|input] [options]"
   opt :daemonize, "Enable or disable daemon mode", default: false
   opt :log, "Enable or disable logging mode", default: false
   opt :port, "Specify the port number", type: :integer, default: DEFAULT_PORT
@@ -107,6 +109,49 @@ def restart_server(opts)
   start_server(opts)
 end
 
+def print_status
+  if File.exist?(PID_FILE)
+    pid = File.read(PID_FILE).to_i
+    begin
+      Process.kill 0, pid
+      puts "Server is running"
+    rescue StandardError
+      puts "Server is not running"
+    end
+  else
+    puts "Server is not running"
+  end
+end
+
+def export_document_db
+  command = <<~SHELL
+pg_dump monadic | gzip > "#{DATA_DIR}/monadic.gz"
+  SHELL
+
+  # run command and get the result with error reporting
+  res = system(command)
+
+  if res
+    puts "Document DB exported to 'monadic.gz'"
+  else
+    puts "Failed to export document DB"
+  end
+end
+
+def import_document_db
+  command = <<~SHELL
+dropdb monadic && createdb --locale=C --template=template0 monadic && gunzip -c "#{DATA_DIR}/monadic.gz" | psql monadic
+  SHELL
+
+  res = system(command)
+
+  if res
+    puts "Document DB imported from 'monadic.gz'"
+  else
+    puts "Failed to import document DB"
+  end
+end
+
 # Parse subcommand
 subcommand = ARGV.shift
 
@@ -118,18 +163,12 @@ when "stop"
   stop_server
 when "restart"
   restart_server(opts)
+when "export"
+  export_document_db
+when "import"
+  import_document_db
 when "status"
-  if File.exist?(PID_FILE)
-    pid = File.read(PID_FILE).to_i
-    begin
-      Process.kill 0, pid
-      puts "Server is running"
-    rescue StandardError
-      puts "Server is not running"
-    end
-  else
-    puts "Server is not running"
-  end
+  print_status
 else
-  Optimist.die "Unknown subcommand. Use \"start\", \"stop\", or \"restart\"."
+  Optimist.die "Unknown subcommand. Use \"start\", \"stop\", \"restart\", \"export\", \"import\", or \"status\""
 end

docker/services/ruby/lib/monadic.rb

@@ -121,17 +121,17 @@ def init_apps
     if app.settings[:mathjax]
       initial_prompt_suffix << <<~INITIAL
 
-      Use double dollar signs `$$` to enclose MathJax/LaTeX expressions that should be displayed as a separate block; Use single dollar signs `$` before and after the expressions that should appear inline with the text. Without these, the expressions will not render correctly. 
+      Use double dollar signs `$$` to enclose MathJax/LaTeX expressions that should be displayed as a separate block; Use single dollar signs `$` before and after the expressions that should appear inline with the text. Without these, the expressions will not render correctly.
 
       Good example:
       `$[1 + 2 + 3 + … + k + (k + 1) = \frac{k(k + 1)}{2} + (k + 1)]$` for inline expressions
       `$$[1 + 2 + 3 + … + k + (k + 1) = \frac{k(k + 1)}{2} + (k + 1)]$$` for separate block expressions
       `$\begin{align} 1 + 2 + … + k + (k+1) &= \frac{k(k+1)}{2} + (k+1)\end{align}$`
       `$$\begin{align} 1 + 2 + … + k + (k+1) &= \frac{k(k+1)}{2} + (k+1)\end{align}$$`
-
       INITIAL
 
       prompt_suffix << <<~SUFFIX
+      IT'S EXTREMELY IMPORTANT TO USE THE CORRECT MATHJAX/LATEX SYNTAX. IF YOU DON'T USE THE CORRECT SYNTAX, THE EQUATIONS WILL NOT RENDER CORRECTLY.
       SUFFIX
     end