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ac89bb064a
All OS and IO operations should be moved out, leaving only some misc portable pure functions. This is useful to avoid copious CPP when doing things like Windows and Emscripten ports. Newly exposed functions to break cycles: - `restoreSignals` - `updateWindowSize`
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
#include "graphml.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 std::string symbolicName(std::string_view p)
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{
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return std::string(p.substr(0, p.find('-') + 1));
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}
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static std::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 std::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='long'/>"
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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->references) {
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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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