Class: Mmi::InstallRecord

Inherits:
Object
  • Object
show all
Defined in:
lib/mmi/install_record.rb

Defined Under Namespace

Classes: RecordEntry

Constant Summary collapse

RECORD_FILE = 
'.mmi_install_record'.freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ InstallRecord

Returns a new instance of InstallRecord.



11
12
13
 
# File 'lib/mmi/install_record.rb', line 11

def initialize
	@record = {}
end

Class Method Details

.parse_record_file(dir) ⇒ Object 



55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
 
# File 'lib/mmi/install_record.rb', line 55

def self.parse_record_file(dir)
	record_file = File.expand_path(RECORD_FILE, dir)
	
	if File.exist?(record_file)
		parsed_record = Psych.unsafe_load_file(record_file)
		
		unless !parsed_record.is_a?(Hash) || parsed_record.keys.any?{|k| !k.is_a?(String)} && parsed_record.values.any?{|v| !v.is_a?(Record)}
			parsed_record
		else
			Mmi.warn("Found invalid install record at #{record_file}. The file will be ignored.")
			nil
		end
	else
		nil
	end
end

Instance Method Details

#add(url, relative_path, content_hash:) ⇒ Object 



15
16
17
18
19
 
# File 'lib/mmi/install_record.rb', line 15

def add(url, relative_path, content_hash:)
	raise 'content_hash must be nil or an instance of Mmi::ContentHash::Base' unless content_hash.nil? || content_hash.is_a?(Mmi::ContentHash::Base)
	
	@record[relative_path] = RecordEntry.new(url, content_hash)
end

#install(dir) ⇒ Object 



21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/mmi/install_record.rb', line 21

def install(dir)
	old_record = self.class.parse_record_file(dir) || {}
	
	@record.each do |relative_path, entry|
		target_file = File.expand_path(relative_path, dir)
		
		if old_record[relative_path] != entry || (File.exist?(target_file) && !entry.content_hash&.match_file?(target_file))
			Mmi.info "Downloading #{entry.url.inspect} into #{target_file.inspect}."
			
			begin
				Mmi::InstallUtils.download_to_file(entry.url, target_file, entry.content_hash)
			rescue OpenURI::HTTPError => e
				Mmi.fail! "Error when requesting asset.\n#{e.inspect}"
			end
		else
			Mmi.info "Skipping #{entry.url.inspect} because it is already present at #{target_file.inspect}."
		end
		
		old_record.delete(relative_path)
	end
	
	old_record.each do |relative_path, _|
		target_file = File.expand_path(relative_path, dir)
		
		File.delete(target_file) if File.exist?(target_file)
	end
	
	File.write(File.expand_path(RECORD_FILE, dir), to_yaml)
end

#to_yaml ⇒ Object 



51
52
53
 
# File 'lib/mmi/install_record.rb', line 51

def to_yaml
	Psych.dump(@record)
end