configuration files: support tilde expansion

README.md

@@ -111,7 +111,7 @@ and disabling colours:
 --calendar=czech-cs       # celebrations common for the whole Czech Republic
 --calendar=czech-cechy-cs # Bohemia
 --calendar=czech-praha-cs # archdiocese of Prague
---calendar=/home/igneus/calendar_data/local_church.txt # path to a custom calendar file with proper celebrations of the parish where I live (titular feast of the church, dedication)
+--calendar=~/calendar_data/local_church.txt # path to a custom calendar file with proper celebrations of the parish where I live (titular feast of the church, dedication)
 
 --no-color # disable colours
 ```

features/configuration_file.feature

@@ -76,3 +76,16 @@ Feature: Configuration file
     And the stderr should contain "Error loading '"
     And the stderr should contain ".calromrc': invalid option: --unknown-option"
     And the stderr should not contain traceback
+
+  Scenario: tilde expansion in configuration file
+    Given a file named "~/calendar.txt" with:
+    """
+    1/11 : St. None, abbot
+    """
+    And a file named "~/.calromrc" with:
+    """
+    --calendar=~/calendar.txt # path with tilde
+    """
+    When I run `calrom 2000-01-11`
+    Then the exit status should be 0
+    And the output should contain "St. None, abbot,  optional memorial"

lib/calrom/config.rb

@@ -22,10 +22,12 @@ def build_sanctorale
       end
 
       data = @sanctorale.collect do |s|
+        expanded = File.expand_path s
+
         if s == '-'
           CR::SanctoraleLoader.new.load_from_string STDIN.read
-        elsif File.file? s
-          CR::SanctoraleLoader.new.load_from_file s
+        elsif File.file? expanded
+          CR::SanctoraleLoader.new.load_from_file expanded
         elsif CR::Data[s]
           CR::Data[s].load
         else