From e4ddf366956b8d6fd3bc4aef629be2438fc44509 Mon Sep 17 00:00:00 2001
From: Martin Puppe <dev@mpuppe.de>
Date: Mon, 14 Sep 2020 20:53:55 +0200
Subject: [PATCH] Add config option for cache home directory

---
 mpbackup | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/mpbackup b/mpbackup
index 0613d7d..efded99 100644
--- a/mpbackup
+++ b/mpbackup
@@ -8,6 +8,8 @@ DEFAULT_CONFIG_FILE = Pathname.new('/etc/mpbackup/config.yaml')
 NAME = 'mpbackup'
 VERSION = '0.4.0'
 
+$original_cache_home = ENV['XDG_CACHE_HOME']
+
 def set_restic_vars(config)
   if config['repository-file']
     puts "Reading repository from file #{config['repository-file']} …"
@@ -23,6 +25,10 @@ def set_restic_vars(config)
   else
     password = STDIN.getpass('Please put in your restic password: ')
   end
+  if config['cache-home']
+    puts "Setting XDG_CACHE_HOME to #{config['cache-home']} …"
+    ENV['XDG_CACHE_HOME'] = config['cache-home']
+  end
 
   ENV['RESTIC_REPOSITORY'] = repo
   ENV['RESTIC_PASSWORD'] = password
@@ -31,6 +37,11 @@ end
 def unset_restic_vars
   ENV.delete('RESTIC_REPOSITORY')
   ENV.delete('RESTIC_PASSWORD')
+  if $original_cache_home
+    ENV['XDG_CACHE_HOME'] = $original_cache_home
+  else
+    ENV.delete('XDG_CACHE_HOME')
+  end
 end
 
 def error(exit_status, message)