Class: PackageConflictOverlapResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/nu/dependency_leveling/package_conflict_overlap_resolver.rb

Instance Method Summary collapse

Constructor Details

#initialize(installed_packages, package_lister) ⇒ PackageConflictOverlapResolver

Returns a new instance of PackageConflictOverlapResolver.



5
6
7
8
9
 
# File 'lib/nu/dependency_leveling/package_conflict_overlap_resolver.rb', line 5

def initialize(installed_packages, package_lister)
	@conflict_finder = PackageConflictFinder.new(installed_packages, package_lister)
	@installed_packages = installed_packages
	@package_lister = package_lister
end

Instance Method Details

#analyze_proposal(proposed_package) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
 
# File 'lib/nu/dependency_leveling/package_conflict_overlap_resolver.rb', line 11

def analyze_proposal(proposed_package)
	r = @conflict_finder.analyze_proposal(proposed_package)
	
	Array.new(r.conflicts).each do |conflict|
		hav = highest_acceptable_version(conflict[:name], conflict[:requirement_one], conflict[:requirement_two])
		resolve_conflict(r,conflict,hav) if hav
	end if r.conflict?

	r.suggested_packages.uniq!
	r.conflicts.uniq!
	
	return r
end

#highest_acceptable_version(name, requirement_one, requirement_two) ⇒ Object 



25
26
27
28
29
30
31
 
# File 'lib/nu/dependency_leveling/package_conflict_overlap_resolver.rb', line 25

def highest_acceptable_version(name, requirement_one, requirement_two)
	candidates = @package_lister.find(name)
	candidates = candidates.select do |spec| 
		requirement_one.satisfied_by?(spec.version) and requirement_two.satisfied_by?(spec.version)
	end
	return Gem::Requirement.new(candidates.sort{|a,b| a.version <=> b.version}.last.version) if candidates.length > 0
end