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* Merge addToStore and addToStoreFixed.

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* addToStore now adds unconditionally, it doesn't use readOnlyMode.
  Read-only operation is up to the caller (who can call
  computeStorePathForPath).
This commit is contained in:
Eelco Dolstra 2006-12-01 20:51:18 +00:00
parent ceb982a1be
commit a824d58b56
11 changed files with 40 additions and 96 deletions
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2
src/Makefile.am
View file

@ -2,5 +2,3 @@ SUBDIRS = bin2c boost libutil libstore libmain nix-store nix-hash \
libexpr nix-instantiate nix-env nix-worker nix-log2xml bsdiff-4.3
EXTRA_DIST = aterm-helper.pl
#SETUID_PROGS = nix-store nix-instantiate nix-env

5
src/libexpr/eval.cc
View file

@ -5,6 +5,7 @@
#include "store-api.hh"
#include "derivations.hh"
#include "nixexpr-ast.hh"
#include "globals.hh"
namespace nix {
@ -251,7 +252,9 @@ string coerceToString(EvalState & state, Expr e, PathSet & context,
if (state.srcToStore[path] != "")
dstPath = state.srcToStore[path];
else {
dstPath = store->addToStore(path);
dstPath = readOnlyMode
? computeStorePathForPath(path).first
: store->addToStore(path);
state.srcToStore[path] = dstPath;
printMsg(lvlChatty, format("copied source `%1%' -> `%2%'")
% path % dstPath);

26
src/libstore/local-store.cc
View file

@ -619,20 +619,20 @@ static void invalidatePath(Transaction & txn, const Path & path)
}
Path LocalStore::_addToStore(bool fixed, bool recursive,
string hashAlgo, const Path & _srcPath)
Path LocalStore::addToStore(const Path & _srcPath, bool fixed,
bool recursive, string hashAlgo)
{
Path srcPath(absPath(_srcPath));
debug(format("adding `%1%' to the store") % srcPath);
std::pair<Path, Hash> pr =
computeStorePathForPath(fixed, recursive, hashAlgo, srcPath);
computeStorePathForPath(srcPath, fixed, recursive, hashAlgo);
Path & dstPath(pr.first);
Hash & h(pr.second);
if (!readOnlyMode) addTempRoot(dstPath);
addTempRoot(dstPath);
if (!readOnlyMode && !isValidPath(dstPath)) {
if (!isValidPath(dstPath)) {
/* The first check above is an optimisation to prevent
unnecessary lock acquisition. */
@ -664,26 +664,14 @@ Path LocalStore::_addToStore(bool fixed, bool recursive,
}
Path LocalStore::addToStore(const Path & srcPath)
{
return _addToStore(false, false, "", srcPath);
}
Path LocalStore::addToStoreFixed(bool recursive, string hashAlgo, const Path & srcPath)
{
return _addToStore(true, recursive, hashAlgo, srcPath);
}
Path LocalStore::addTextToStore(const string & suffix, const string & s,
const PathSet & references)
{
Path dstPath = computeStorePathForText(suffix, s);
if (!readOnlyMode) addTempRoot(dstPath);
addTempRoot(dstPath);
if (!readOnlyMode && !isValidPath(dstPath)) {
if (!isValidPath(dstPath)) {
PathLocks outputLock(singleton<PathSet, Path>(dstPath));

24
src/libstore/local-store.hh
View file

@ -45,27 +45,19 @@ public:
Hash queryPathHash(const Path & path);
void queryReferences(const Path & storePath,
PathSet & references);
void queryReferences(const Path & path, PathSet & references);
void queryReferrers(const Path & storePath,
PathSet & referrers);
void queryReferrers(const Path & path, PathSet & referrers);
Path addToStore(const Path & srcPath);
Path addToStoreFixed(bool recursive, string hashAlgo,
const Path & srcPath);
Path addToStore(const Path & srcPath, bool fixed = false,
bool recursive = false, string hashAlgo = "");
Path addTextToStore(const string & suffix, const string & s,
const PathSet & references);
void buildDerivations(const PathSet & drvPaths);
void ensurePath(const Path & storePath);
private:
Path _addToStore(bool fixed, bool recursive,
string hashAlgo, const Path & _srcPath);
void ensurePath(const Path & path);
};
@ -120,16 +112,16 @@ bool isValidPathTxn(const Transaction & txn, const Path & path);
/* Sets the set of outgoing FS references for a store path. Use with
care! */
void setReferences(const Transaction & txn, const Path & storePath,
void setReferences(const Transaction & txn, const Path & path,
const PathSet & references);
/* Sets the deriver of a store path. Use with care! */
void setDeriver(const Transaction & txn, const Path & storePath,
void setDeriver(const Transaction & txn, const Path & path,
const Path & deriver);
/* Query the deriver of a store path. Return the empty string if no
deriver has been set. */
Path queryDeriver(const Transaction & txn, const Path & storePath);
Path queryDeriver(const Transaction & txn, const Path & path);
/* Delete a value from the nixStore directory. */
void deleteFromStore(const Path & path, unsigned long long & bytesFreed);

32
src/libstore/remote-store.cc
View file

@ -3,7 +3,6 @@
#include "remote-store.hh"
#include "worker-protocol.hh"
#include "archive.hh"
#include "globals.hh"
#include <iostream>
#include <unistd.h>
@ -123,33 +122,14 @@ void RemoteStore::queryReferrers(const Path & path,
}
Path RemoteStore::addToStore(const Path & srcPath)
Path RemoteStore::addToStore(const Path & _srcPath, bool fixed,
bool recursive, string hashAlgo)
{
if (readOnlyMode) {
/* No sense in making a round trip, we can just compute the
path here. */
return computeStorePathForPath(false, false, "", srcPath).first;
}
Path srcPath(absPath(_srcPath));
writeInt(wopAddToStore, to);
writeString(baseNameOf(srcPath), to);
dumpPath(srcPath, to);
Path path = readString(from);
return path;
}
Path RemoteStore::addToStoreFixed(bool recursive, string hashAlgo,
const Path & srcPath)
{
if (readOnlyMode) {
/* No sense in making a round trip, we can just compute the
path here. */
return computeStorePathForPath(true, recursive, hashAlgo, srcPath).first;
}
writeInt(wopAddToStoreFixed, to);
writeString(baseNameOf(srcPath), to);
writeInt(fixed ? 1 : 0, to);
writeInt(recursive ? 1 : 0, to);
writeString(hashAlgo, to);
dumpPath(srcPath, to);
@ -161,10 +141,6 @@ Path RemoteStore::addToStoreFixed(bool recursive, string hashAlgo,
Path RemoteStore::addTextToStore(const string & suffix, const string & s,
const PathSet & references)
{
if (readOnlyMode) {
return computeStorePathForText(suffix, s);
}
writeInt(wopAddTextToStore, to);
writeString(suffix, to);
writeString(s, to);

6
src/libstore/remote-store.hh
View file

@ -37,10 +37,8 @@ public:
void queryReferrers(const Path & path, PathSet & referrers);
Path addToStore(const Path & srcPath);
Path addToStoreFixed(bool recursive, string hashAlgo,
const Path & srcPath);
Path addToStore(const Path & srcPath, bool fixed = false,
bool recursive = false, string hashAlgo = "");
Path addTextToStore(const string & suffix, const string & s,
const PathSet & references);

4
src/libstore/store-api.cc
View file

@ -93,8 +93,8 @@ Path makeFixedOutputPath(bool recursive,
}
std::pair<Path, Hash> computeStorePathForPath(bool fixed, bool recursive,
string hashAlgo, const Path & srcPath)
std::pair<Path, Hash> computeStorePathForPath(const Path & srcPath,
bool fixed, bool recursive, string hashAlgo)
{
Hash h(htSHA256);
{

17
src/libstore/store-api.hh
View file

@ -63,14 +63,11 @@ public:
PathSet & referrers) = 0;
/* Copy the contents of a path to the store and register the
validity the resulting path. The resulting path is
returned. */
virtual Path addToStore(const Path & srcPath) = 0;
/* Like addToStore(), but for pre-adding the outputs of
fixed-output derivations. */
virtual Path addToStoreFixed(bool recursive, string hashAlgo,
const Path & srcPath) = 0;
validity the resulting path. The resulting path is returned.
If `fixed' is true, then the output of a fixed-output
derivation is pre-loaded into the Nix store. */
virtual Path addToStore(const Path & srcPath, bool fixed = false,
bool recursive = false, string hashAlgo = "") = 0;
/* Like addToStore, but the contents written to the output path is
a regular file containing the given string. */
@ -119,8 +116,8 @@ Path makeFixedOutputPath(bool recursive,
it computes the store path to which srcPath is to be copied.
Returns the store path and the cryptographic hash of the
contents of srcPath. */
std::pair<Path, Hash> computeStorePathForPath(bool fixed, bool recursive,
string hashAlgo, const Path & srcPath);
std::pair<Path, Hash> computeStorePathForPath(const Path & srcPath,
bool fixed = false, bool recursive = false, string hashAlgo = "");
/* Preparatory part of addTextToStore().

1
src/libstore/worker-protocol.hh
View file

@ -15,7 +15,6 @@ typedef enum {
wopQueryReferences,
wopQueryReferrers,
wopAddToStore,
wopAddToStoreFixed,
wopAddTextToStore,
wopBuildDerivations,
wopEnsurePath,

2
src/nix-store/main.cc
View file

@ -133,7 +133,7 @@ static void opAddFixed(Strings opFlags, Strings opArgs)
opArgs.pop_front();
for (Strings::iterator i = opArgs.begin(); i != opArgs.end(); ++i)
cout << format("%1%\n") % store->addToStoreFixed(recursive, hashAlgo, *i);
cout << format("%1%\n") % store->addToStore(*i, true, recursive, hashAlgo);
}

17
src/nix-worker/main.cc
View file

@ -79,25 +79,18 @@ void processConnection(Source & from, Sink & to)
break;
}
case wopAddToStore:
case wopAddToStoreFixed: {
case wopAddToStore: {
/* !!! uberquick hack */
string baseName = readString(from);
bool recursive = false;
string hashAlgo;
if (op == wopAddToStoreFixed) {
recursive = readInt(from) == 1;
hashAlgo = readString(from);
}
bool fixed = readInt(from) == 1;
bool recursive = readInt(from) == 1;
string hashAlgo = readString(from);
Path tmp = createTempDir();
Path tmp2 = tmp + "/" + baseName;
restorePath(tmp2, from);
if (op == wopAddToStoreFixed)
writeString(store->addToStoreFixed(recursive, hashAlgo, tmp2), to);
else
writeString(store->addToStore(tmp2), to);
writeString(store->addToStore(tmp2, fixed, recursive, hashAlgo), to);
deletePath(tmp);
break;