ci: switch to alpine for static linking

Refs: #15

.drone.yml

@@ -5,7 +5,7 @@ name: default
 
 steps:
   - name: build:binary
-    image: crystallang/crystal:1.7.3
+    image: crystallang/crystal:1.10.1-alpine
     environment:
       PACKAGE_BASENAME: mfm_linux_amd64
     volumes:
@@ -13,11 +13,16 @@ steps:
         path: /_cache
     commands:
       - pwd
-      - apt-get update && 
-          apt-get install -y cmake g++ libevent-dev libpcre3-dev libyaml-dev
+        # - |
+        #   apt-get update && \
+        #   apt-get install -y \
+        #     cmake g++ \
+        #     libevent-dev libpcre3-dev \
+        #     libyaml-dev liblzma-dev
       - shards install
       - shards build --production --static
       - strip bin/mfm
+      - ./bin/mfm --version
       - mkdir -p /_cache/bin
       - cp -r bin/mfm /_cache/bin/$PACKAGE_BASENAME
 

shard.lock

@@ -1,5 +1,9 @@
 version: 2.0
 shards:
+  crinja:
+    git: https://github.com/straight-shoota/crinja.git
+    version: 0.8.1
+
   shellwords:
     git: https://github.com/sztheory/shellwords-crystal.git
     version: 0.1.0

shard.yml

@@ -18,6 +18,8 @@ targets:
 #   Short description of gx-vault
 
 dependencies:
+  crinja:
+    github: straight-shoota/crinja
   shellwords:
     github: szTheory/shellwords-crystal
 

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
 

src/config.cr

@@ -3,10 +3,14 @@
 # SPDX-FileCopyrightText: 2023 Glenn Y. Rolland <glenux@glenux.net>
 # Copyright © 2023 Glenn Y. Rolland <glenux@glenux.net>
 
+require "crinja"
+
 require "./filesystems"
 
 module GX
   class Config
+    Log = ::Log.for("config")
+
     enum Mode
       ConfigAdd
       ConfigDelete
@@ -23,11 +27,9 @@ module GX
     getter home_dir : String
     property verbose : Bool
     property mode : Mode
-    property path : String
+    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"
@@ -37,22 +39,55 @@ module GX
       @verbose = false
       @mode = Mode::Mount
       @filesystems = [] of Filesystem
-      @path = File.join(@home_dir, ".config", DEFAULT_CONFIG_PATH)
+      @path = nil
+
       @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
+      path = @path
+      if path.nil?
+        path = detect_config_file()
+      end
+      @path = path
       @filesystems = [] of Filesystem
 
-      if !File.exists? @path
-        STDERR.puts "Error: file #{@path} does not exist!".colorize(:red)
+      if !File.exists? path
+        Log.error { "File #{path} does not exist!".colorize(:red) }
         exit(1)
       end
-      load_filesystems(@path)
+      load_filesystems(path)
     end
 
     private def load_filesystems(config_path : String)
-      yaml_data = YAML.parse(File.read(config_path))
+      file_data = File.read(config_path)
+      # FIXME: render template on a value basis (instead of global)
+      file_patched = Crinja.render(file_data, {"env" => ENV.to_h}) 
+
+      yaml_data = YAML.parse(file_patched)
       vaults_data = yaml_data["filesystems"].as_a
 
       vaults_data.each do |filesystem_data|

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