mirror of
https://github.com/privatevoid-net/nix-super.git
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88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
#include "graphml.hh"
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#include "util.hh"
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#include "store-api.hh"
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#include "derivations.hh"
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#include <iostream>
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using std::cout;
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namespace nix {
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static inline std::string_view xmlQuote(std::string_view s)
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{
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// Luckily, store paths shouldn't contain any character that needs to be
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// quoted.
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return s;
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}
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static string symbolicName(const std::string & p)
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{
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return string(p, p.find('-') + 1);
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}
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static string makeEdge(std::string_view src, std::string_view dst)
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{
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return fmt(" <edge source=\"%1%\" target=\"%2%\"/>\n",
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xmlQuote(src), xmlQuote(dst));
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}
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static string makeNode(const ValidPathInfo & info)
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{
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return fmt(
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" <node id=\"%1%\">\n"
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" <data key=\"narSize\">%2%</data>\n"
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" <data key=\"name\">%3%</data>\n"
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" <data key=\"type\">%4%</data>\n"
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" </node>\n",
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info.path.to_string(),
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info.narSize,
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symbolicName(std::string(info.path.name())),
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(info.path.isDerivation() ? "derivation" : "output-path"));
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}
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void printGraphML(ref<Store> store, StorePathSet && roots)
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{
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StorePathSet workList(std::move(roots));
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StorePathSet doneSet;
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std::pair<StorePathSet::iterator, bool> ret;
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cout << "<?xml version='1.0' encoding='utf-8'?>\n"
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<< "<graphml xmlns='http://graphml.graphdrawing.org/xmlns'\n"
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<< " xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'\n"
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<< " xsi:schemaLocation='http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd'>\n"
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<< "<key id='narSize' for='node' attr.name='narSize' attr.type='int'/>"
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<< "<key id='name' for='node' attr.name='name' attr.type='string'/>"
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<< "<key id='type' for='node' attr.name='type' attr.type='string'/>"
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<< "<graph id='G' edgedefault='directed'>\n";
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while (!workList.empty()) {
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auto path = std::move(workList.extract(workList.begin()).value());
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ret = doneSet.insert(path);
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if (ret.second == false) continue;
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auto info = store->queryPathInfo(path);
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cout << makeNode(*info);
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for (auto & p : info->referencesPossiblyToSelf()) {
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if (p != path) {
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workList.insert(p);
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cout << makeEdge(path.to_string(), p.to_string());
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}
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}
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}
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cout << "</graph>\n";
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cout << "</graphml>\n";
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}
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}
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