From b0973f25d74e90872800bf629c65fdb665f8e37d Mon Sep 17 00:00:00 2001
From: Martin Puppe <dev@mpuppe.de>
Date: Sat, 6 Mar 2021 16:13:34 +0100
Subject: [PATCH] Make path to restic executable configurable

---
 mpbackup | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/mpbackup b/mpbackup
index 4e70eb0..1935947 100644
--- a/mpbackup
+++ b/mpbackup
@@ -38,14 +38,20 @@ def unset_restic_vars
   ENV.delete('RESTIC_CACHE_DIR')
 end
 
+def set_restic_path(config)
+  if !config.key? 'restic-path'
+    config['restic-path'] = 'restic'
+  end
+end
+
 def error(exit_status, message)
   STDERR.puts("Error: #{message}")
   exit exit_status
 end
 
-def check
+def check(config)
   puts 'Checking restic repo …'
-  check_command = ['restic', 'check']
+  check_command = [config['restic-path'], 'check']
   puts("Command: #{check_command.join(' ')}")
   system(*check_command)
   if $?.exitstatus > 0
@@ -62,20 +68,20 @@ def backup(config)
   exclude = config.dig('backup', 'exclude')&.flat_map{|e| ['--exclude', e]} || []
   tags = config.dig('backup', 'tags')&.flat_map{|t| ['--tag', t]} || []
   paths = config.dig('backup', 'paths') || []
-  backup_command = ['restic', 'backup', *exclude, *paths, *flags]
+  backup_command = [config['restic-path'], 'backup', *exclude, *paths, *flags]
   puts("Command: #{backup_command.join(' ')}")
   system(*backup_command)
   if $?.exitstatus > 0
     error(1, 'Failed to do backup.')
   end
 
-  check
+  check(config)
 
   if config.dig('forget', 'enable')
     puts 'Forgetting unnecessary snapshots …'
     flags = config['forget'].select{|k,v| k != 'enable'}
     flags = flags.flat_map{|k,v| ['--' + k, v.to_s]}
-    forget_command = ['restic', 'forget'] + flags
+    forget_command = [config['restic-path'], 'forget'] + flags
     puts("Command: #{forget_command.join(' ')}")
     system(*forget_command)
     # Data will only be deleted when `restic prune` is executed or when
@@ -88,7 +94,7 @@ end
 
 def prune(config)
   puts 'Pruning restic repo …'
-  prune_command = ['restic', 'prune']
+  prune_command = [config['restic-path'], 'prune']
   puts("Command: #{prune_command.join(' ')}")
   system(*prune_command)
   if $?.exitstatus > 0
@@ -101,12 +107,13 @@ end
 def run_restic(config)
   puts 'Executing restic with the following arguments …'
   puts "ARGV: #{ARGV}"
-  exec('restic', *ARGV)
+  exec(config['restic-path'], *ARGV)
 end
 
 def act(config, options)
   puts "Applying configuration ‘#{config['name']}’ …"
   set_restic_vars(config)
+  set_restic_path(config)
   if options[:prune]
     prune config
   elsif options[:run_restic]