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#include "nix-store/graphml.hh"
#include <iostream>
#include "libstore/derivations.hh"
#include "libstore/store-api.hh"
#include "libutil/util.hh"
using std::cout;
namespace nix {
static inline const std::string& xmlQuote(const std::string& s) {
// Luckily, store paths shouldn't contain any character that needs to be
// quoted.
return s;
}
static std::string symbolicName(const std::string& path) {
std::string p = baseNameOf(path);
return std::string(p, p.find('-') + 1);
}
static std::string makeEdge(const std::string& src, const std::string& dst) {
return fmt(" <edge source=\"%1%\" target=\"%2%\"/>\n", xmlQuote(src),
xmlQuote(dst));
}
static std::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, info.narSize, symbolicName(info.path),
(isDerivation(info.path) ? "derivation" : "output-path"));
}
void printGraphML(const ref<Store>& store, const PathSet& roots) {
PathSet workList(roots);
PathSet doneSet;
std::pair<PathSet::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()) {
Path path = *(workList.begin());
workList.erase(path);
ret = doneSet.insert(path);
if (!ret.second) {
continue;
}
ValidPathInfo info = *(store->queryPathInfo(path));
cout << makeNode(info);
for (auto& p : store->queryPathInfo(path)->references) {
if (p != path) {
workList.insert(p);
cout << makeEdge(path, p);
}
}
}
cout << "</graph>\n";
cout << "</graphml>\n";
}
} // namespace nix
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