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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
module Solve
class Artifact
include Comparable
# A reference to the graph this artifact belongs to
#
# @return [Solve::Graph]
attr_reader :graph
# The name of the artifact
#
# @return [String]
attr_reader :name
# The version of this artifact
#
# @return [Semverse::Version]
attr_reader :version
# @param [Solve::Graph] graph
# @param [#to_s] name
# @param [Semverse::Version, #to_s] version
def initialize(graph, name, version)
@graph = graph
@name = name
@version = Semverse::Version.new(version)
@dependencies = {}
end
# Check if the artifact has a dependency with the matching name and
# constraint
#
# @param [#to_s] name
# @param [#to_s] constraint
#
# @return [Boolean]
def dependency?(name, constraint)
!get_dependency(name, constraint).nil?
end
alias_method :has_dependency?, :dependency?
# Retrieve the dependency from the artifact with the matching name and constraint
#
# @param [#to_s] name
# @param [#to_s] constraint
#
# @return [Solve::Artifact, nil]
def dependency(name, constraint)
set_dependency(name, constraint)
end
# Return the collection of dependencies on this instance of artifact
#
# @return [Array<Solve::Dependency>]
def dependencies
@dependencies.values
end
# Return the Solve::Dependency from the collection of
# dependencies with the given name and constraint.
#
# @param [#to_s] name
# @param [String] constraint
#
# @example Adding dependencies
# artifact.depends('nginx')
# #=> #<Dependency nginx (>= 0.0.0)>
# artifact.depends('ntp', '= 1.0.0')
# #=> #<Dependency ntp (= 1.0.0)>
#
# @example Chaining dependencies
# artifact
# .depends('nginx')
# .depends('ntp', '~> 1.3')
#
# @return [Solve::Artifact]
def depends(name, constraint = ">= 0.0.0")
unless dependency?(name, constraint)
set_dependency(name, constraint)
end
self
end
def to_s
"#{name}-#{version}"
end
# @param [Object] other
#
# @return [Boolean]
def ==(other)
other.is_a?(self.class) &&
name == other.name &&
version == other.version
end
alias_method :eql?, :==
# @param [Semverse::Version] other
#
# @return [Integer]
def <=>(other)
version <=> other.version
end
private
def get_dependency(name, constraint)
@dependencies["#{name}-#{constraint}"]
end
def set_dependency(name, constraint)
@dependencies["#{name}-#{constraint}"] = Dependency.new(self, name, constraint)
end
end
end
|
