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* Unify exportReferencesGraph and exportBuildReferencesGraph, and make

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sure that it works as expected when you pass it a derivation.  That
  is, we have to make sure that all build-time dependencies are built,
  and that they are all in the input closure (otherwise remote builds
  might fail, for example).  This is ensured at instantiation time by
  adding all derivations and their sources to inputDrvs and inputSrcs.
This commit is contained in:
Eelco Dolstra 2009-03-18 17:36:42 +00:00
parent e530e0a350
commit 2897286487
4 changed files with 39 additions and 66 deletions
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30
src/libexpr/primops.cc
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@ -399,16 +399,29 @@ static Expr prim_derivationStrict(EvalState & state, const ATermVector & args)
/* Everything in the context of the strings in the derivation
attributes should be added as dependencies of the resulting
derivation. */
for (PathSet::iterator i = context.begin(); i != context.end(); ++i) {
foreach (PathSet::iterator, i, context) {
Path path = *i;
bool buildDrv = true;
/* Paths marked with `=' denote that the path of a derivation
is explicitly passed to the builder. Since that allows the
builder to gain access to every path in the dependency
graph of the derivation (including all outputs), all paths
in the graph must be added to this derivation's list of
inputs to ensure that they are available when the builder
runs. */
if (path.at(0) == '=') {
buildDrv = false;
path = string(path, 1);
PathSet refs; computeFSClosure(path, refs);
foreach (PathSet::iterator, j, refs) {
drv.inputSrcs.insert(*j);
if (isDerivation(*j))
drv.inputDrvs[*j] = singleton<StringSet>("out");
}
}
debug(format("derivation uses `%1%'") % path);
assert(isStorePath(path));
if (buildDrv && isDerivation(path))
if (isDerivation(path))
drv.inputDrvs[path] = singleton<StringSet>("out");
else
drv.inputSrcs.insert(path);
@ -484,7 +497,7 @@ static Expr prim_derivationStrict(EvalState & state, const ATermVector & args)
outAttrs.set(toATerm("outPath"),
makeAttrRHS(makeStr(outPath, singleton<PathSet>(drvPath)), makeNoPos()));
outAttrs.set(toATerm("drvPath"),
makeAttrRHS(makeStr(drvPath, singleton<PathSet>(drvPath)), makeNoPos()));
makeAttrRHS(makeStr(drvPath, singleton<PathSet>("=" + drvPath)), makeNoPos()));
return makeAttrs(outAttrs);
}
@ -541,13 +554,6 @@ static Expr prim_storePath(EvalState & state, const ATermVector & args)
Path path2 = toStorePath(path);
if (!store->isValidPath(path2))
throw EvalError(format("store path `%1%' is not valid") % path2);
/* If this is a derivation, mark it so it doesn't get built;
i.e. we want the dependency as a "source" dependency. This is
to make nix-push work properly (we want it to create a NAR
archive of the derivation, not build the derivation as a
side-effect). The `=' is a special marker that gets stripped
off by prim_derivationStrict. */
if (isDerivation(path2)) path2 = "=" + path2;
context.insert(path2);
return makeStr(path, context);
}