feat: add support for mime-type

shard.lock

@@ -0,0 +1,6 @@
+version: 2.0
+shards:
+  magic:
+    git: https://github.com/dscottboggs/magic.cr.git
+    version: 1.1.0
+

shard.yml

@@ -9,16 +9,15 @@ targets:
 authors:
   - Glenn Y. Rolland <glenux@glenux.net>
 
+dependencies:
+  magic:
+    github: dscottboggs/magic.cr
+
 # description: |
 #   Short description of chatgpt-preloader
 
-# dependencies:
-#   pg:
-#     github: will/crystal-pg
-#     version: "~> 0.5"
-
 # development_dependencies:
 #   webmock:
 #     github: manastech/webmock.cr
 
-# license: MIT
+license: LGPL-3.0-or-later

src/cli.cr

@@ -3,6 +3,7 @@
 
 require "file"
 require "option_parser"
+require "magic"
 
 require "./config"
 
@@ -100,10 +101,13 @@ module CodePreloader
 
     private def process_file(root_path : String, file_path : String, output_file : IO::FileDescriptor)
       relative_file_path = file_path.sub(/^#{Regex.escape(root_path)}/, ".").lstrip
-      output_file.puts "@@ File \"#{relative_file_path}\""
+      fh = File.open(file_path)
+      mime = Magic.mime_type.of(fh)
+      output_file.puts "@@ File \"#{relative_file_path}\" (Mime-Type: #{mime.inspect})"
       output_file.puts ""
-      output_file.puts(File.read(file_path))
+      output_file.puts(fh.gets_to_end)
       output_file.puts ""
+      fh.close
     end
   end
 end

src/config.cr

@@ -54,7 +54,7 @@ module CodePreloader
     end
 
     private def validate_arguments
-      abort("Missing repository path.") if @repository_path.nil? || @repository_path.try(&.empty?)
+      abort("Missing repository path.") if @repository_path_list.empty?
       abort("Missing repository path.") if 
       STDERR.puts("Output file path not specified (using STDOUT)") if @output_file_path.nil? || @output_file_path.try(&.empty?)
     end