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* Before a build, show the disk space that the downloaded store paths

Browse source 
will approximately require.
This commit is contained in:
Eelco Dolstra 2010-11-17 14:31:42 +00:00
parent 06699d4219
commit bdf089f463
11 changed files with 36 additions and 29 deletions
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7
scripts/copy-from-other-stores.pl.in
View file

@ -63,10 +63,15 @@ if ($ARGV[0] eq "--query") {
`@bindir@/nix-store --query --references $storePath`;
die "cannot query references of `$storePath'" if $? != 0;
my $narSize = `@bindir@/nix-store --query --size $storePath`;
die "cannot query size of `$storePath'" if $? != 0;
chomp $narSize;
print "$deriver\n";
print scalar @references, "\n";
print "$_\n" foreach @references;
print "0\n"; # !!! showing size not supported (yet)
print "$narSize\n";
print "$narSize\n";
}
else { die "unknown command `$cmd'"; }

2
scripts/download-using-manifests.pl.in
View file

@ -64,6 +64,8 @@ if ($ARGV[0] eq "--query") {
print "$_\n" foreach @references;
my $size = $info->{size} || 0;
print "$size\n";
my $narSize = $info->{narSize} || 0;
print "$narSize\n";
}
else { die "unknown command `$cmd'"; }

26
scripts/readmanifest.pm.in
View file

@ -33,18 +33,8 @@ sub readManifest {
my $manifestVersion = 2;
my $storePath;
my $url;
my $hash;
my $size;
my $basePath;
my $baseHash;
my $patchType;
my $narHash;
my $references;
my $deriver;
my $hashAlgo;
my $copyFrom;
my ($storePath, $url, $hash, $size, $basePath, $baseHash, $patchType);
my ($narHash, $narSize, $references, $deriver, $hashAlgo, $copyFrom);
while (<MANIFEST>) {
chomp;
@ -62,6 +52,7 @@ sub readManifest {
undef $hash;
undef $size;
undef $narHash;
undef $narSize;
undef $basePath;
undef $baseHash;
undef $patchType;
@ -89,7 +80,8 @@ sub readManifest {
if (!$found) {
push @{$narFileList},
{ url => $url, hash => $hash, size => $size
, narHash => $narHash, references => $references
, narHash => $narHash, narSize => $narSize
, references => $references
, deriver => $deriver, hashAlgo => $hashAlgo
};
}
@ -100,8 +92,8 @@ sub readManifest {
addPatch $patches, $storePath,
{ url => $url, hash => $hash, size => $size
, basePath => $basePath, baseHash => $baseHash
, narHash => $narHash, patchType => $patchType
, hashAlgo => $hashAlgo
, narHash => $narHash, narSize => $narSize
, patchType => $patchType, hashAlgo => $hashAlgo
};
}
@ -132,6 +124,7 @@ sub readManifest {
elsif (/^\s*BaseHash:\s*(\S+)\s*$/) { $baseHash = $1; }
elsif (/^\s*Type:\s*(\S+)\s*$/) { $patchType = $1; }
elsif (/^\s*NarHash:\s*(\S+)\s*$/) { $narHash = $1; }
elsif (/^\s*NarSize:\s*(\d+)\s*$/) { $narSize = $1; }
elsif (/^\s*References:\s*(.*)\s*$/) { $references = $1; }
elsif (/^\s*Deriver:\s*(\S+)\s*$/) { $deriver = $1; }
elsif (/^\s*ManifestVersion:\s*(\d+)\s*$/) { $manifestVersion = $1; }
@ -183,8 +176,9 @@ sub writeManifest {
print MANIFEST " StorePath: $storePath\n";
print MANIFEST " NarURL: $patch->{url}\n";
print MANIFEST " Hash: $patch->{hash}\n";
print MANIFEST " NarHash: $patch->{narHash}\n";
print MANIFEST " Size: $patch->{size}\n";
print MANIFEST " NarHash: $patch->{narHash}\n";
print MANIFEST " NarSize: $patch->{narSize}\n" if $patch->{narSize};
print MANIFEST " BasePath: $patch->{basePath}\n";
print MANIFEST " BaseHash: $patch->{baseHash}\n";
print MANIFEST " Type: $patch->{patchType}\n";

13
src/libmain/shared.cc
View file

@ -54,25 +54,26 @@ void printGCWarning()
void printMissing(const PathSet & paths)
{
unsigned long long downloadSize;
unsigned long long downloadSize, narSize;
PathSet willBuild, willSubstitute, unknown;
queryMissing(paths, willBuild, willSubstitute, unknown, downloadSize);
queryMissing(paths, willBuild, willSubstitute, unknown, downloadSize, narSize);
if (!willBuild.empty()) {
printMsg(lvlInfo, format("the following derivations will be built:"));
printMsg(lvlInfo, format("these derivations will be built:"));
foreach (PathSet::iterator, i, willBuild)
printMsg(lvlInfo, format(" %1%") % *i);
}
if (!willSubstitute.empty()) {
printMsg(lvlInfo, format("the following paths will be downloaded/copied (%.2f MiB):") %
(downloadSize / (1024.0 * 1024.0)));
printMsg(lvlInfo, format("these paths will be downloaded/copied (%.2f MiB download, %.2f MiB unpacked):")
% (downloadSize / (1024.0 * 1024.0))
% (narSize / (1024.0 * 1024.0)));
foreach (PathSet::iterator, i, willSubstitute)
printMsg(lvlInfo, format(" %1%") % *i);
}
if (!unknown.empty()) {
printMsg(lvlInfo, format("don't know how to build the following paths%1%:")
printMsg(lvlInfo, format("don't know how to build these paths%1%:")
% (readOnlyMode ? " (may be caused by read-only store access)" : ""));
foreach (PathSet::iterator, i, unknown)
printMsg(lvlInfo, format(" %1%") % *i);

1
src/libstore/local-store.cc
View file

@ -839,6 +839,7 @@ bool LocalStore::querySubstitutablePathInfo(const Path & substituter,
info.references.insert(p);
}
info.downloadSize = getIntLine<long long>(run.from);
info.narSize = getIntLine<long long>(run.from);
return true;
}

5
src/libstore/misc.cc
View file

@ -48,9 +48,9 @@ Path findOutput(const Derivation & drv, string id)
void queryMissing(const PathSet & targets,
PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown,
unsigned long long & downloadSize)
unsigned long long & downloadSize, unsigned long long & narSize)
{
downloadSize = 0;
downloadSize = narSize = 0;
PathSet todo(targets.begin(), targets.end()), done;
@ -88,6 +88,7 @@ void queryMissing(const PathSet & targets,
if (store->querySubstitutablePathInfo(p, info)) {
willSubstitute.insert(p);
downloadSize += info.downloadSize;
narSize += info.narSize;
todo.insert(info.references.begin(), info.references.end());
} else
unknown.insert(p);

2
src/libstore/misc.hh
View file

@ -31,7 +31,7 @@ Path findOutput(const Derivation & drv, string id);
will be substituted. */
void queryMissing(const PathSet & targets,
PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown,
unsigned long long & downloadSize);
unsigned long long & downloadSize, unsigned long long & narSize);
}

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

@ -191,9 +191,8 @@ void RemoteStore::setOptions()
writeInt(logType, to);
writeInt(printBuildTrace, to);
}
if (GET_PROTOCOL_MINOR(daemonVersion) >= 6) {
if (GET_PROTOCOL_MINOR(daemonVersion) >= 6)
writeInt(buildCores, to);
}
processStderr();
}
@ -243,6 +242,7 @@ bool RemoteStore::querySubstitutablePathInfo(const Path & path,
if (info.deriver != "") assertStorePath(info.deriver);
info.references = readStorePaths(from);
info.downloadSize = readLongLong(from);
info.narSize = GET_PROTOCOL_MINOR(daemonVersion) >= 7 ? readLongLong(from) : 0;
return true;
}

1
src/libstore/store-api.hh
View file

@ -87,6 +87,7 @@ struct SubstitutablePathInfo
Path deriver;
PathSet references;
unsigned long long downloadSize; /* 0 = unknown or inapplicable */
unsigned long long narSize; /* 0 = unknown */
};

2
src/libstore/worker-protocol.hh
View file

@ -8,7 +8,7 @@ namespace nix {
#define WORKER_MAGIC_1 0x6e697863
#define WORKER_MAGIC_2 0x6478696f
#define PROTOCOL_VERSION 0x106
#define PROTOCOL_VERSION 0x107
#define GET_PROTOCOL_MAJOR(x) ((x) & 0xff00)
#define GET_PROTOCOL_MINOR(x) ((x) & 0x00ff)

2
src/nix-worker/nix-worker.cc
View file

@ -521,6 +521,8 @@ static void performOp(unsigned int clientVersion,
writeString(info.deriver, to);
writeStringSet(info.references, to);
writeLongLong(info.downloadSize, to);
if (GET_PROTOCOL_MINOR(clientVersion) >= 7)
writeLongLong(info.narSize, to);
}
break;
}