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exportReferencesGraph: Export more complete info in JSON format

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This writes info about every path in the closure in the same format as
‘nix path-info --json’. Thus it also includes NAR hashes and sizes.

Example:

  [
    {
      "path": "/nix/store/10h6li26i7g6z3mdpvra09yyf10mmzdr-hello-2.10",
      "narHash": "sha256:0ckdc4z20kkmpqdilx0wl6cricxv90lh85xpv2qljppcmz6vzcxl",
      "narSize": 197648,
      "references": [
        "/nix/store/10h6li26i7g6z3mdpvra09yyf10mmzdr-hello-2.10",
        "/nix/store/27binbdy296qvjycdgr1535v8872vz3z-glibc-2.24"
      ],
      "closureSize": 20939776
    },
    {
      "path": "/nix/store/27binbdy296qvjycdgr1535v8872vz3z-glibc-2.24",
      "narHash": "sha256:1nfn3m3p98y1c0kd0brp80dn9n5mycwgrk183j17rajya0h7gax3",
      "narSize": 20742128,
      "references": [
        "/nix/store/27binbdy296qvjycdgr1535v8872vz3z-glibc-2.24"
      ],
      "closureSize": 20742128
    }
  ]

Fixes #1134.
This commit is contained in:
Eelco Dolstra 2017-01-26 20:36:20 +01:00
parent 6de33a9c67
commit c2b0d8749f
No known key found for this signature in database
GPG key ID: 8170B4726D7198DE
4 changed files with 90 additions and 50 deletions
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59
src/libstore/store-api.cc
View file

@ -4,6 +4,7 @@
#include "util.hh"
#include "nar-info-disk-cache.hh"
#include "thread-pool.hh"
#include "json.hh"
#include <future>
@ -439,6 +440,64 @@ string Store::makeValidityRegistration(const PathSet & paths,
}
void Store::pathInfoToJSON(JSONPlaceholder & jsonOut, const PathSet & storePaths,
bool includeImpureInfo, bool showClosureSize)
{
auto jsonList = jsonOut.list();
for (auto storePath : storePaths) {
auto info = queryPathInfo(storePath);
storePath = info->path;
auto jsonPath = jsonList.object();
jsonPath
.attr("path", storePath)
.attr("narHash", info->narHash.to_string())
.attr("narSize", info->narSize);
{
auto jsonRefs = jsonPath.list("references");
for (auto & ref : info->references)
jsonRefs.elem(ref);
}
if (info->ca != "")
jsonPath.attr("ca", info->ca);
if (showClosureSize)
jsonPath.attr("closureSize", getClosureSize(storePath));
if (!includeImpureInfo) continue;
if (info->deriver != "")
jsonPath.attr("deriver", info->deriver);
if (info->registrationTime)
jsonPath.attr("registrationTime", info->registrationTime);
if (info->ultimate)
jsonPath.attr("ultimate", info->ultimate);
if (!info->sigs.empty()) {
auto jsonSigs = jsonPath.list("signatures");
for (auto & sig : info->sigs)
jsonSigs.elem(sig);
}
}
}
unsigned long long Store::getClosureSize(const Path & storePath)
{
unsigned long long totalSize = 0;
PathSet closure;
computeFSClosure(storePath, closure, false, false);
for (auto & p : closure)
totalSize += queryPathInfo(p)->narSize;
return totalSize;
}
const Store::Stats & Store::getStats()
{
{