From f94d0f1f39ac7ae498d76c670e677b0539240728 Mon Sep 17 00:00:00 2001
From: Glenn <glenux@glenux.net>
Date: Sat, 18 Nov 2023 19:32:12 +0100
Subject: [PATCH] fix: add support for global config file

Refs: #14
---
 src/cli.cr    |  3 +++
 src/config.cr | 32 ++++++++++++++++++++++++++++----
 src/main.cr   | 22 ++++++++++++++++++++++
 3 files changed, 53 insertions(+), 4 deletions(-)

diff --git a/src/cli.cr b/src/cli.cr
index a222201..3c0bcf0 100644
--- a/src/cli.cr
+++ b/src/cli.cr
@@ -11,6 +11,7 @@ module GX
   VERSION="v0.1.9"
 
   class Cli
+    Log = ::Log.for("cli")
 
     @config : Config
 
@@ -29,10 +30,12 @@ module GX
         parser.banner = "Usage: #{PROGRAM_NAME} [options]\n\nGlobal options"
 
         parser.on("-c", "--config FILE", "Set configuration file") do |path|
+          Log.info { "Configuration set to #{path}" }
           @config.path = path
         end
 
         parser.on("-v", "--verbose", "Set more verbosity") do |flag|
+          Log.info { "Verbosity enabled" }
           @config.verbose = true
         end
 
diff --git a/src/config.cr b/src/config.cr
index 34df337..f5f6ba0 100644
--- a/src/config.cr
+++ b/src/config.cr
@@ -7,6 +7,8 @@ require "./filesystems"
 
 module GX
   class Config
+    Log = ::Log.for("config")
+
     enum Mode
       ConfigAdd
       ConfigDelete
@@ -26,8 +28,6 @@ module GX
     property path : String
     property args : AddArgs.class | DelArgs.class | NoArgs.class
 
-    DEFAULT_CONFIG_PATH = "mfm.yml"
-
     def initialize()
       if !ENV["HOME"]?
         raise "Home directory not found"
@@ -37,15 +37,39 @@ module GX
       @verbose = false
       @mode = Mode::Mount
       @filesystems = [] of Filesystem
-      @path = File.join(@home_dir, ".config", DEFAULT_CONFIG_PATH)
+      @path = detect_config_file()
+
       @args = NoArgs
     end
 
+    def detect_config_file()
+      possible_files = [
+        File.join(@home_dir, ".config", "mfm", "config.yaml"),
+        File.join(@home_dir, ".config", "mfm", "config.yml"),
+        File.join(@home_dir, ".config", "mfm.yaml"),
+        File.join(@home_dir, ".config", "mfm.yml"),
+        File.join("/etc", "mfm", "config.yaml"),
+        File.join("/etc", "mfm", "config.yml"),
+      ]
+
+      possible_files.each do |file_path|
+        if File.exists?(file_path)
+          Log.info { "Configuration file found: #{file_path}" }
+          return file_path if File.exists?(file_path)
+        else
+          Log.debug { "Configuration file not found: #{file_path}" }
+        end
+      end
+
+      Log.error { "No configuration file found in any of the standard locations" }
+      raise "Configuration file not found"
+    end
+
     def load_from_file
       @filesystems = [] of Filesystem
 
       if !File.exists? @path
-        STDERR.puts "Error: file #{@path} does not exist!".colorize(:red)
+        Log.error { "File #{@path} does not exist!".colorize(:red) }
         exit(1)
       end
       load_filesystems(@path)
diff --git a/src/main.cr b/src/main.cr
index 43192b0..f32183c 100644
--- a/src/main.cr
+++ b/src/main.cr
@@ -6,11 +6,33 @@
 require "yaml"
 require "colorize"
 require "json"
+require "log"
 
 require "./filesystems/gocryptfs"
 require "./config"
 require "./cli"
 
+struct BaseFormat < Log::StaticFormatter
+  def run
+    string @entry.severity.label.downcase
+    string "("
+    source
+    string "): "
+    message
+  end
+end
+
+Log.setup do |config|
+  backend = Log::IOBackend.new(formatter: BaseFormat)
+  config.bind "*", Log::Severity::Info, backend
+
+  if ENV["LOG_LEVEL"]?
+    level = Log::Severity.parse(ENV["LOG_LEVEL"]) || Log::Severity::Info
+    config.bind "*", level, backend
+  end
+end
+
+
 app = GX::Cli.new
 app.parse_command_line(ARGV)
 app.run