class Pandan::DependencyGraph
Public Class Methods
new(argv)
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Calls superclass method
# File lib/pandan/command/dependency_graph.rb, line 24 def initialize(argv) @xcworkspace = argv.option('xcworkspace') @xcworkspace ||= XCWorkspace.find_workspace @save_gv = argv.flag?('graphviz') @save_png = argv.flag?('image') @filter = argv.option('filter') @filter ||= '.*' # Match everything super end
options()
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Calls superclass method
# File lib/pandan/command/dependency_graph.rb, line 11 def self.options [ ['--xcworkspace=path/to/workspace', 'If not set, Pandan will try to find a workspace'], ['--graphviz', 'Outputs the dependency graph in GraphViz format'], ['--image', 'Outputs the dependency graph as a PNG image'], ['--filter=expression', 'If set, pandan will select all targets whose name match the regular expression'] ].concat(super) end
Public Instance Methods
run()
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# File lib/pandan/command/dependency_graph.rb, line 46 def run parser = Parser.new(@xcworkspace, @filter) targets = parser.all_targets graph = Graph.new(false) graph.add_target_info(targets) Dir.mktmpdir do |dir| tmpfile = File.join(dir, 'dependencies.gv') tmpfile_reduced = File.join(dir, 'dependencies_reduced.gv') save_gv(graphviz_data(graph), tmpfile) `tred #{tmpfile} > #{tmpfile_reduced}` # tred performs a transitive reduction on the graph reduced_graph = GraphViz.parse(tmpfile_reduced) FileUtils.mv(tmpfile_reduced, 'dependencies.gv') if @save_gv save_png(reduced_graph, 'dependencies.png') if @save_png end end
validate!()
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Calls superclass method
# File lib/pandan/command/dependency_graph.rb, line 34 def validate! super help! 'Could not find the workspace. Try setting it manually using the --xcworkspace option.' unless @xcworkspace if `which tred`.empty? help! 'Pandan requires GraphViz to generate the dependency graph. '\ 'Please install it, e.g. with Homebrew: `brew install graphviz`.' end help! 'Please use at least one of --graphviz and --image.' if @save_gv.nil? && @save_png.nil? end
Private Instance Methods
graphviz_data(graph)
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# File lib/pandan/command/dependency_graph.rb, line 67 def graphviz_data(graph) graphviz = GraphViz.new(type: :digraph) graph.nodes.each_value do |node| next unless node.name.match?(/#{@filter}/) target_node = graphviz.add_node(node.name) node.neighbors.each do |dependency| next unless dependency.name.match?(/#{@filter}/) dep_node = graphviz.add_node(dependency.name) graphviz.add_edge(target_node, dep_node) end end graphviz end
save_gv(graphviz_data, filename)
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# File lib/pandan/command/dependency_graph.rb, line 84 def save_gv(graphviz_data, filename) graphviz_data.output(dot: filename) end
save_png(graphviz_data, filename)
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# File lib/pandan/command/dependency_graph.rb, line 88 def save_png(graphviz_data, filename) graphviz_data.output(png: filename) end