1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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
|
# frozen_string_literal: true
##
# Supports reading and writing gems from/to a generic IO object. This is
# useful for other applications built on top of rubygems, such as
# rubygems.org.
#
# This is a private class, do not depend on it directly. Instead, pass an IO
# object to `Gem::Package.new`.
class Gem::Package::IOSource < Gem::Package::Source # :nodoc: all
attr_reader :io
def initialize(io)
@io = io
end
def start
@start ||= begin
if io.pos > 0
raise Gem::Package::Error, "Cannot read start unless IO is at start"
end
value = io.read 20
io.rewind
value
end
end
def present?
true
end
def with_read_io
yield io
end
def with_write_io
yield io
end
def path
end
end
|
