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