Add support for tweaking production/development output

examples/render-mandoc/docs/download.1

@@ -1,6 +1,6 @@
 .\" Automatically generated by Pandoc 3.2
 .\"
-.TH "download" "1" "November 2024" "Version 0.1.0" "Sample application"
+.TH "download" "1" "December 2024" "Version 0.1.0" "Sample application"
 .SH NAME
 \f[B]download\f[R] \- Sample application
 .SH SYNOPSIS

examples/render-mandoc/docs/download.md

@@ -1,6 +1,6 @@
 % download(1) Version 0.1.0 | Sample application
 % Lana Lang
-% November 2024
+% December 2024
 
 NAME
 ==================================================

lib/bashly/concerns/renderable.rb

@@ -16,7 +16,7 @@ def strings
     # Outputs a comment that describes the view unless in production mode
     def view_marker(id = nil)
       id ||= ":#{caller_locations(1..1).first.path}"
-      "# #{id}" unless Settings.production?
+      "# #{id}" if Settings.enabled? :view_markers
     end
 
     # Reads a file from the userspace (Settings.source_dir) and returns

lib/bashly/libraries/settings/settings.yml

@@ -9,6 +9,11 @@
 # If you wish to change the path to this file, set the environment variable
 # BASHLY_SETTINGS_PATH.
 
+
+#-------------------------------------------------------------------------------
+# PATH OPTIONS
+#-------------------------------------------------------------------------------
+
 # The path containing the bashly source files
 source_dir: src
 
@@ -27,6 +32,14 @@ lib_dir: lib
 # directory, and each command will get its own subdirectory
 commands_dir: ~
 
+# The extension to use when reading/writing partial script snippets
+partials_extension: sh
+
+
+#-------------------------------------------------------------------------------
+# FORMAT OPTIONS
+#-------------------------------------------------------------------------------
+
 # Configure the bash options that will be added to the initialize function:
 # strict: true       Bash strict mode (set -euo pipefail)
 # strict: false      Only exit on errors (set -e)
@@ -38,6 +51,11 @@ strict: false
 # (every 2 leading spaces will be converted to a tab character)
 tab_indent: false
 
+
+#-------------------------------------------------------------------------------
+# INTERFACE OPTIONS
+#-------------------------------------------------------------------------------
+
 # When true, the generated script will consider any argument in the form of
 # `-abc` as if it is `-a -b -c`.
 compact_short_flags: true
@@ -47,14 +65,6 @@ compact_short_flags: true
 # respectively.
 conjoined_flag_args: true
 
-# Set to 'production' or 'development':
-# env: production    Generate a smaller script, without file markers
-# env: development   Generate with file markers
-env: development
-
-# The extension to use when reading/writing partial script snippets
-partials_extension: sh
-
 # Show command examples (if any) whenever the user does not provide the
 # required arguments
 show_examples_on_error: false
@@ -75,3 +85,28 @@ usage_colors:
   arg: ~
   flag: ~
   environment_variable: ~
+
+
+#-------------------------------------------------------------------------------
+# FEATURE TOGGLES
+#-------------------------------------------------------------------------------
+
+# Set to 'production' or 'development'.
+# Determines which features are enabled in the rendered script.
+# Use the `enable_*` options below to adjust settings for each environment.
+# It is recommended to leave this set to 'development' and run
+# `bashly generate --production` when the slimmer production script is needed.
+env: development
+
+# Tweak the script output by enabling or disabling some script output.
+# These options accept one of the following strings:
+# - production      render this feature only when env == production
+# - development     render this feature only when env == development
+# - always          render this feature in any environment
+# - never           do not render this feature
+enable_header_comment: always
+enable_bash3_bouncer: always
+enable_view_markers: development
+enable_inspect_args: development
+enable_deps_array: always
+enable_env_var_names_array: always

lib/bashly/script/dependency.rb

@@ -1,6 +1,6 @@
 module Bashly
   module Script
-    class Dependency
+    class Dependency < Base
       attr_reader :label, :commands, :help
 
       class << self

lib/bashly/script/wrapper.rb

@@ -40,7 +40,7 @@ def header!
 
       def default_header
         result = render 'header'
-        result += render('bash3_bouncer') unless function_name
+        result += render('bash3_bouncer') unless function_name || !Settings.enabled?(:bash3_bouncer)
         result
       end
 

lib/bashly/settings.rb

@@ -8,6 +8,12 @@ class << self
         :compact_short_flags,
         :conjoined_flag_args,
         :config_path,
+        :enable_bash3_bouncer,
+        :enable_deps_array,
+        :enable_env_var_names_array,
+        :enable_header_comment,
+        :enable_inspect_args,
+        :enable_view_markers,
         :lib_dir,
         :partials_extension,
         :private_reveal_key,
@@ -35,6 +41,36 @@ def config_path
         @config_path ||= get(:config_path) % { source_dir: source_dir }
       end
 
+      def enabled?(feature)
+        send(:"enable_#{feature}") == 'always' ||
+          (send(:"enable_#{feature}") == 'production' && production?) ||
+          (send(:"enable_#{feature}") == 'development' && !production?)
+      end
+
+      def enable_header_comment
+        @enable_header_comment ||= get :enable_header_comment
+      end
+
+      def enable_bash3_bouncer
+        @enable_bash3_bouncer ||= get :enable_bash3_bouncer
+      end
+
+      def enable_view_markers
+        @enable_view_markers ||= get :enable_view_markers
+      end
+
+      def enable_inspect_args
+        @enable_inspect_args ||= get :enable_inspect_args
+      end
+
+      def enable_deps_array
+        @enable_deps_array ||= get :enable_deps_array
+      end
+
+      def enable_env_var_names_array
+        @enable_env_var_names_array ||= get :enable_env_var_names_array
+      end
+
       def env
         @env ||= get(:env)&.to_sym
       end

lib/bashly/views/command/default_root_script.gtx

@@ -1,4 +1,6 @@
 > echo "# this file is located in '{{ "#{Settings.source_dir}/#{filename}" }}'"
 > echo "# you can edit it freely and regenerate (it will not be overwritten)"
-> inspect_args
+if Settings.enabled? :inspect_args
+  > inspect_args
+end
 >

lib/bashly/views/command/default_script.gtx

@@ -1,5 +1,7 @@
 > echo "# this file is located in '{{ "#{Settings.source_dir}/#{filename}" }}'"
 > echo "# code for '{{ full_name }}' goes here"
 > echo "# you can edit it freely and regenerate (it will not be overwritten)"
-> inspect_args
+if Settings.enabled? :inspect_args
+  > inspect_args
+end
 >

lib/bashly/views/command/dependencies_filter.gtx

@@ -2,15 +2,6 @@ if dependencies.any?
   = view_marker
 
   dependencies.each do |dependency|
-    > if command -v {{ dependency.commands.join(' ') }} >/dev/null 2>&1; then
-    >   deps['{{ dependency.label }}']="$(command -v {{ dependency.commands.join(' ') }} | head -n1)"
-    > else
-    >   printf "{{ strings[:missing_dependency] % { dependency: dependency.name } }}\n" >&2
-    if dependency.help
-      >   printf "%s\n" "{{ dependency.help.sanitize_for_print }}" >&2
-    end
-    >   exit 1
-    > fi
-    >
+    = dependency.render :filter
   end
 end

lib/bashly/views/command/environment_variables_filter.gtx

@@ -2,8 +2,10 @@ if environment_variables.any?
   = view_marker
   = render(:environment_variables_default)
 
-  environment_variables.each do |env_var|
-    > env_var_names+=("{{ env_var.name.upcase }}")
+  if Settings.enabled? :env_var_names_array
+    environment_variables.each do |env_var|
+      > env_var_names+=("{{ env_var.name.upcase }}")
+    end
   end
 end
 

lib/bashly/views/command/inspect_args.gtx

@@ -20,22 +20,26 @@
 >     done
 >   fi
 >
->   if ((${#deps[@]})); then
->     readarray -t sorted_keys < <(printf '%s\n' "${!deps[@]}" | sort)
->     echo
->     echo deps:
->     for k in "${sorted_keys[@]}"; do
->       echo "- \${deps[$k]} = ${deps[$k]}"
->     done
->   fi
->
->   if ((${#env_var_names[@]})); then
->     readarray -t sorted_names < <(printf '%s\n' "${env_var_names[@]}" | sort)
->     echo
->     echo "environment variables:"
->     for k in "${sorted_names[@]}"; do
->       echo "- \$$k = ${!k:-}"
->     done
->   fi
+if Settings.enabled? :deps_array
+  >   if ((${#deps[@]})); then
+  >     readarray -t sorted_keys < <(printf '%s\n' "${!deps[@]}" | sort)
+  >     echo
+  >     echo deps:
+  >     for k in "${sorted_keys[@]}"; do
+  >       echo "- \${deps[$k]} = ${deps[$k]}"
+  >     done
+  >   fi
+  >
+end
+if Settings.enabled? :env_var_names_array
+  >   if ((${#env_var_names[@]})); then
+  >     readarray -t sorted_names < <(printf '%s\n' "${env_var_names[@]}" | sort)
+  >     echo
+  >     echo "environment variables:"
+  >     for k in "${sorted_names[@]}"; do
+  >       echo "- \$$k = ${!k:-}"
+  >     done
+  >   fi
+end
 > }
 > 

lib/bashly/views/command/master_script.gtx

@@ -4,7 +4,7 @@
 = render :version_command
 = render :usage
 = render :normalize_input
-= render :inspect_args unless Settings.production?
+= render :inspect_args if Settings.enabled? :inspect_args
 = render :user_lib if user_lib.any?
 = render :command_functions
 = render :parse_requirements

lib/bashly/views/command/run.gtx

@@ -2,9 +2,13 @@
 
 > run() {
 >   declare -g -A args=()
->   declare -g -A deps=()
+if Settings.enabled? :deps_array
+  >   declare -g -A deps=()
+end
 >   declare -g -a other_args=()
->   declare -g -a env_var_names=()
+if Settings.enabled? :env_var_names_array
+  >   declare -g -a env_var_names=()
+end
 >   declare -g -a input=()
 if has_unique_args_or_flags?
   >   declare -g -A unique_lookup=()

lib/bashly/views/dependency/filter.gtx

@@ -0,0 +1,14 @@
+= view_marker
+
+> if ! command -v {{ commands.join(' ') }} >/dev/null 2>&1; then
+>   printf "{{ strings[:missing_dependency] % { dependency: name } }}\n" >&2
+if help
+  >   printf "%s\n" "{{ help.sanitize_for_print }}" >&2
+end
+>   exit 1
+if Settings.enabled? :deps_array
+  > else
+  >   deps['{{ label }}']="$(command -v {{ commands.join(' ') }} | head -n1)"
+end
+> fi
+>

lib/bashly/views/wrapper/header.gtx

@@ -1,5 +1,7 @@
 > #!/usr/bin/env bash
-> # This script was generated by bashly {{ Bashly::VERSION }} (https://bashly.dannyb.co)
-> # Modifying it manually is not recommended
+if Settings.enabled? :header_comment
+  > # This script was generated by bashly {{ Bashly::VERSION }} (https://bashly.dannyb.co)
+  > # Modifying it manually is not recommended
+end
 > 
 >