lib/tldr/cli/commands.rb in tldr-cli-0.2.0 vs lib/tldr/cli/commands.rb in tldr-cli-0.3.0

@@ -13,10 +13,13 @@
         ENV.fetch('TLDR_URL_BASE', 'https://raw.githubusercontent.com/tldr-pages/tldr/main/pages')
 
       URL_SUFFIX =
         ENV.fetch('TLDR_URL_SUFFIX', '.md')
 
+      LOCAL_BASE =
+        ENV.fetch('TLDR_LOCAL_BASE', "#{Dir.home}/.config/tldr/pages")
+
       usage do
         program 'tldr'
 
         banner "usage: #{program} [-v] [OPTION]... SEARCH"
       end
@@ -80,10 +83,19 @@
         default 'common'
         permit %w[linux osx sunos windows common]
         desc 'select platform, supported are linux / osx / sunos / windows / common'
       end
 
+      option :source do
+        optional
+        short '-s'
+        long '--source=string'
+        default 'local'
+        permit %w[local remote]
+        desc 'select page source to be local or remote (default: local)'
+      end
+
       argument :query do
         arity zero_or_more
       end
 
       def run
@@ -94,15 +106,21 @@
         elsif params[:help]
           print help
         elsif params[:version]
           version
         elsif params[:query]
-          query, lang, platform =
-            params.to_h.values_at(:query, :lang, :platform)
+          query, lang, platform, source =
+            params.to_h.values_at(:query, :lang, :platform, :source)
 
           page_path = "/#{platform}/#{query}"
 
+          if source == 'local' && local_page?(local_path(page_path, lang: lang))
+            content = File.read(local_path(page_path, lang: lang))
+            render_markdown(content)
+            return
+          end
+
           response = Faraday.get(remote_path(page_path, lang: lang))
           return not_found unless response.success?
 
           render_markdown(response.body)
         else
@@ -127,9 +145,18 @@
       def not_found
         puts <<~MESSAGE
           This page doesn't exist yet!
           Submit new pages here: https://github.com/tldr-pages/tldr
         MESSAGE
+      end
+
+      def local_page?(page_path)
+        File.exist?(page_path)
+      end
+
+      def local_path(fragment, lang: 'en', relative: false)
+        lang = lang == 'en' ? '' : ".#{lang}"
+        "#{relative ? '' : LOCAL_BASE}#{lang}#{fragment}#{URL_SUFFIX}"
       end
 
       def remote_path(fragment, lang: 'en', relative: false)
         lang = lang == 'en' ? '' : ".#{lang}"
         "#{relative ? '' : URL_BASE}#{lang}#{fragment}#{URL_SUFFIX}"