* Sync with the trunk.

This commit is contained in:
Eelco Dolstra 2010-06-21 07:55:38 +00:00
commit bf87cc44b4
16 changed files with 140 additions and 16 deletions

View file

@ -59,6 +59,7 @@ std::ostream & operator << (std::ostream & str, const Value & v)
str << "]";
break;
case tThunk:
case tApp:
case tCopy:
str << "<CODE>";
break;
@ -901,12 +902,18 @@ string EvalState::forceString(Value & v)
}
string EvalState::forceString(Value & v, PathSet & context)
void copyContext(const Value & v, PathSet & context)
{
string s = forceString(v);
if (v.string.context)
for (const char * * p = v.string.context; *p; ++p)
context.insert(*p);
}
string EvalState::forceString(Value & v, PathSet & context)
{
string s = forceString(v);
copyContext(v, context);
return s;
}
@ -937,9 +944,7 @@ string EvalState::coerceToString(Value & v, PathSet & context,
string s;
if (v.type == tString) {
if (v.string.context)
for (const char * * p = v.string.context; *p; ++p)
context.insert(*p);
copyContext(v, context);
return v.string.s;
}

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@ -163,6 +163,8 @@ void mkString(Value & v, const char * s);
void mkString(Value & v, const string & s, const PathSet & context = PathSet());
void mkPath(Value & v, const char * s);
void copyContext(const Value & v, PathSet & context);
typedef std::map<Path, Hash> DrvHashes;

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@ -15,6 +15,7 @@ MakeError(AssertionError, EvalError)
MakeError(ThrownError, AssertionError)
MakeError(Abort, EvalError)
MakeError(TypeError, EvalError)
MakeError(ImportError, EvalError) // error building an imported derivation
/* Position objects. */

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@ -37,7 +37,11 @@ static void prim_import(EvalState & state, Value * * args, Value & v)
throw EvalError(format("cannot import `%1%', since path `%2%' is not valid")
% path % *i);
if (isDerivation(*i))
store->buildDerivations(singleton<PathSet>(*i));
try {
store->buildDerivations(singleton<PathSet>(*i));
} catch (Error & e) {
throw ImportError(e.msg());
}
}
state.evalFile(path, v);

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@ -69,6 +69,7 @@ static void printValueAsXML(EvalState & state, bool strict, bool location,
case tString:
/* !!! show the context? */
copyContext(v, context);
doc.writeEmptyElement("string", singletonAttrs("value", v.string.s));
break;

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@ -267,7 +267,7 @@ public:
MakeError(SubstError, Error)
MakeError(BuildError, Error) /* denoted a permanent build failure */
MakeError(BuildError, Error) /* denotes a permanent build failure */
//////////////////////////////////////////////////////////////////////

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@ -1036,6 +1036,8 @@ void LocalStore::exportPath(const Path & path, bool sign,
writeInt(1, hashAndWriteSink);
Path tmpDir = createTempDir();
PathLocks tmpDirLock(singleton<PathSet, Path>(tmpDir));
tmpDirLock.setDeletion(true);
AutoDelete delTmp(tmpDir);
Path hashFile = tmpDir + "/hash";
writeFile(hashFile, printHash(hash));
@ -1085,6 +1087,8 @@ Path LocalStore::importPath(bool requireSignature, Source & source)
store path follows the archive data proper), and besides, we
don't know yet whether the signature is valid. */
Path tmpDir = createTempDir(nixStore);
PathLocks tmpDirLock(singleton<PathSet, Path>(tmpDir));
tmpDirLock.setDeletion(true);
AutoDelete delTmp(tmpDir); /* !!! could be GC'ed! */
Path unpacked = tmpDir + "/unpacked";

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@ -119,9 +119,23 @@ static void hashAndLink(bool dryRun, HashToPath & hashToPath,
}
/* Atomically replace the old file with the new hard link. */
if (rename(tempLink.c_str(), path.c_str()) == -1)
if (rename(tempLink.c_str(), path.c_str()) == -1) {
if (errno == EMLINK) {
/* Some filesystems generate too many links on the
rename, rather than on the original link.
(Probably it temporarily increases the st_nlink
field before decreasing it again.) */
printMsg(lvlInfo, format("`%1%' has maximum number of links") % prevPath.first);
hashToPath[hash] = std::pair<Path, ino_t>(path, st.st_ino);
/* Unlink the temp link. */
if (unlink(tempLink.c_str()) == -1)
printMsg(lvlError, format("unable to unlink `%1%'") % tempLink);
return;
}
throw SysError(format("cannot rename `%1%' to `%2%'")
% tempLink % path);
}
} else
printMsg(lvlTalkative, format("would link `%1%' to `%2%'") % path % prevPath.first);

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@ -16,8 +16,6 @@ namespace nix {
typedef std::map<Path, Path> Roots;
struct GCOptions
{
/* Garbage collector operation:

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@ -106,8 +106,6 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
Path manifestFile = store->addTextToStore("env-manifest.nix",
(format("%1%") % manifest).str(), references);
printMsg(lvlError, manifestFile);
/* Get the environment builder expression. */
Value envBuilder;
state.eval(parseExprFromFile(state, nixDataDir + "/nix/corepkgs/buildenv"), envBuilder);

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@ -1,6 +1,9 @@
bin_PROGRAMS = nix-store
nix_store_SOURCES = nix-store.cc dotgraph.cc dotgraph.hh help.txt
nix_store_SOURCES = \
nix-store.cc dotgraph.cc dotgraph.hh help.txt \
xmlgraph.cc xmlgraph.hh
nix_store_LDADD = ../libmain/libmain.la ../libstore/libstore.la ../libutil/libutil.la \
../boost/format/libformat.la

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@ -52,13 +52,13 @@ static string symbolicName(const string & path)
}
#if 0
string pathLabel(const Path & nePath, const string & elemPath)
{
return (string) nePath + "-" + elemPath;
}
#if 0
void printClosure(const Path & nePath, const StoreExpr & fs)
{
PathSet workList(fs.closure.roots);

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@ -42,6 +42,7 @@ Query flags:
--referrers-closure: print all paths (in)directly refering to the path
--tree: print a tree showing the dependency graph of the path
--graph: print a dot graph rooted at given path
--xml: emit an XML representation of the graph rooted at the given path
--hash: print the SHA-256 hash of the contents of the path
--roots: print the garbage collector roots that point to the path

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@ -6,6 +6,7 @@
#include "archive.hh"
#include "shared.hh"
#include "dotgraph.hh"
#include "xmlgraph.hh"
#include "local-store.hh"
#include "util.hh"
#include "help.txt.hh"
@ -226,7 +227,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
{
enum { qOutputs, qRequisites, qReferences, qReferrers
, qReferrersClosure, qDeriver, qBinding, qHash
, qTree, qGraph, qResolve, qRoots } query = qOutputs;
, qTree, qGraph, qXml, qResolve, qRoots } query = qOutputs;
bool useOutput = false;
bool includeOutputs = false;
bool forceRealise = false;
@ -249,6 +250,7 @@ static void opQuery(Strings opFlags, Strings opArgs)
else if (*i == "--hash") query = qHash;
else if (*i == "--tree") query = qTree;
else if (*i == "--graph") query = qGraph;
else if (*i == "--xml") query = qXml;
else if (*i == "--resolve") query = qResolve;
else if (*i == "--roots") query = qRoots;
else if (*i == "--use-output" || *i == "-u") useOutput = true;
@ -327,7 +329,15 @@ static void opQuery(Strings opFlags, Strings opArgs)
PathSet roots;
foreach (Strings::iterator, i, opArgs)
roots.insert(maybeUseOutput(followLinksToStorePath(*i), useOutput, forceRealise));
printDotGraph(roots);
printDotGraph(roots);
break;
}
case qXml: {
PathSet roots;
foreach (Strings::iterator, i, opArgs)
roots.insert(maybeUseOutput(followLinksToStorePath(*i), useOutput, forceRealise));
printXmlGraph(roots);
break;
}

71
src/nix-store/xmlgraph.cc Normal file
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@ -0,0 +1,71 @@
#include "xmlgraph.hh"
#include "util.hh"
#include "store-api.hh"
#include <iostream>
using std::cout;
namespace nix {
static inline const string & xmlQuote(const string & s)
{
// Luckily, store paths shouldn't contain any character that needs to be
// quoted.
return s;
}
static string makeEdge(const string & src, const string & dst)
{
format f = format(" <edge src=\"%1%\" dst=\"%2%\"/>\n")
% xmlQuote(src) % xmlQuote(dst);
return f.str();
}
static string makeNode(const string & id)
{
format f = format(" <node name=\"%1%\"/>\n") % xmlQuote(id);
return f.str();
}
void printXmlGraph(const PathSet & roots)
{
PathSet workList(roots);
PathSet doneSet;
cout << "<?xml version='1.0' encoding='utf-8'?>\n"
<< "<nix>\n";
while (!workList.empty()) {
Path path = *(workList.begin());
workList.erase(path);
if (doneSet.find(path) != doneSet.end()) continue;
doneSet.insert(path);
cout << makeNode(path);
PathSet references;
store->queryReferences(path, references);
for (PathSet::iterator i = references.begin();
i != references.end(); ++i)
{
if (*i != path) {
workList.insert(*i);
cout << makeEdge(*i, path);
}
}
}
cout << "</nix>\n";
}
}

12
src/nix-store/xmlgraph.hh Normal file
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@ -0,0 +1,12 @@
#ifndef __XMLGRAPH_H
#define __XMLGRAPH_H
#include "types.hh"
namespace nix {
void printXmlGraph(const PathSet & roots);
}
#endif /* !__XMLGRAPH_H */