mirror of
https://github.com/NixOS/nix.git
synced 2024-11-23 07:12:27 +00:00
Merge remote-tracking branch 'upstream/master' into add-body-to-network-errors
This commit is contained in:
John Ericson
commit
54e507a7aa
@ -19,6 +19,7 @@ LIBLZMA_LIBS = @LIBLZMA_LIBS@
|
||||
OPENSSL_LIBS = @OPENSSL_LIBS@
|
||||
PACKAGE_NAME = @PACKAGE_NAME@
|
||||
PACKAGE_VERSION = @PACKAGE_VERSION@
|
||||
SHELL = @bash@
|
||||
SODIUM_LIBS = @SODIUM_LIBS@
|
||||
SQLITE3_LIBS = @SQLITE3_LIBS@
|
||||
bash = @bash@
|
||||
|
||||
25
README.md
25
README.md
@ -12,7 +12,7 @@ for more details.
|
||||
On Linux and macOS the easiest way to Install Nix is to run the following shell command
|
||||
(as a user other than root):
|
||||
|
||||
```
|
||||
```console
|
||||
$ curl -L https://nixos.org/nix/install | sh
|
||||
```
|
||||
|
||||
@ -20,27 +20,8 @@ Information on additional installation methods is available on the [Nix download
|
||||
|
||||
## Building And Developing
|
||||
|
||||
### Building Nix
|
||||
|
||||
You can build Nix using one of the targets provided by [release.nix](./release.nix):
|
||||
|
||||
```
|
||||
$ nix-build ./release.nix -A build.aarch64-linux
|
||||
$ nix-build ./release.nix -A build.x86_64-darwin
|
||||
$ nix-build ./release.nix -A build.i686-linux
|
||||
$ nix-build ./release.nix -A build.x86_64-linux
|
||||
```
|
||||
|
||||
### Development Environment
|
||||
|
||||
You can use the provided `shell.nix` to get a working development environment:
|
||||
|
||||
```
|
||||
$ nix-shell
|
||||
$ ./bootstrap.sh
|
||||
$ ./configure
|
||||
$ make
|
||||
```
|
||||
See our [Hacking guide](hydra.nixos.org/job/nix/master/build.x86_64-linux/latest/download-by-type/doc/manual#chap-hacking) in our manual for instruction on how to
|
||||
build nix from source with nix-build or how to get a development environment.
|
||||
|
||||
## Additional Resources
|
||||
|
||||
|
||||
@ -4,18 +4,37 @@
|
||||
|
||||
<title>Hacking</title>
|
||||
|
||||
<para>This section provides some notes on how to hack on Nix. To get
|
||||
<para>This section provides some notes on how to hack on Nix. To get
|
||||
the latest version of Nix from GitHub:
|
||||
<screen>
|
||||
$ git clone git://github.com/NixOS/nix.git
|
||||
$ git clone https://github.com/NixOS/nix.git
|
||||
$ cd nix
|
||||
</screen>
|
||||
</para>
|
||||
|
||||
<para>To build it and its dependencies:
|
||||
<para>To build Nix for the current operating system/architecture use
|
||||
|
||||
<screen>
|
||||
$ nix-build release.nix -A build.x86_64-linux
|
||||
$ nix-build
|
||||
</screen>
|
||||
|
||||
or if you have a flakes-enabled nix:
|
||||
|
||||
<screen>
|
||||
$ nix build
|
||||
</screen>
|
||||
|
||||
This will build <literal>defaultPackage</literal> attribute defined in the <literal>flake.nix</literal> file.
|
||||
|
||||
To build for other platforms add one of the following suffixes to it: aarch64-linux,
|
||||
i686-linux, x86_64-darwin, x86_64-linux.
|
||||
|
||||
i.e.
|
||||
|
||||
<screen>
|
||||
nix-build -A defaultPackage.x86_64-linux
|
||||
</screen>
|
||||
|
||||
</para>
|
||||
|
||||
<para>To build all dependencies and start a shell in which all
|
||||
@ -27,13 +46,27 @@ $ nix-shell
|
||||
To build Nix itself in this shell:
|
||||
<screen>
|
||||
[nix-shell]$ ./bootstrap.sh
|
||||
[nix-shell]$ configurePhase
|
||||
[nix-shell]$ make
|
||||
[nix-shell]$ ./configure $configureFlags
|
||||
[nix-shell]$ make -j $NIX_BUILD_CORES
|
||||
</screen>
|
||||
To install it in <literal>$(pwd)/inst</literal> and test it:
|
||||
<screen>
|
||||
[nix-shell]$ make install
|
||||
[nix-shell]$ make installcheck
|
||||
[nix-shell]$ ./inst/bin/nix --version
|
||||
nix (Nix) 2.4
|
||||
</screen>
|
||||
|
||||
If you have a flakes-enabled nix you can replace:
|
||||
|
||||
<screen>
|
||||
$ nix-shell
|
||||
</screen>
|
||||
|
||||
by:
|
||||
|
||||
<screen>
|
||||
$ nix develop
|
||||
</screen>
|
||||
|
||||
</para>
|
||||
|
||||
@ -207,7 +207,7 @@ if [ -z "$NIX_INSTALLER_NO_MODIFY_PROFILE" ]; then
|
||||
if [ -w "$fn" ]; then
|
||||
if ! grep -q "$p" "$fn"; then
|
||||
echo "modifying $fn..." >&2
|
||||
echo "if [ -e $p ]; then . $p; fi # added by Nix installer" >> "$fn"
|
||||
echo -e "\nif [ -e $p ]; then . $p; fi # added by Nix installer" >> "$fn"
|
||||
fi
|
||||
added=1
|
||||
break
|
||||
@ -218,7 +218,7 @@ if [ -z "$NIX_INSTALLER_NO_MODIFY_PROFILE" ]; then
|
||||
if [ -w "$fn" ]; then
|
||||
if ! grep -q "$p" "$fn"; then
|
||||
echo "modifying $fn..." >&2
|
||||
echo "if [ -e $p ]; then . $p; fi # added by Nix installer" >> "$fn"
|
||||
echo -e "\nif [ -e $p ]; then . $p; fi # added by Nix installer" >> "$fn"
|
||||
fi
|
||||
added=1
|
||||
break
|
||||
|
||||
3
shell.nix
Normal file
3
shell.nix
Normal file
@ -0,0 +1,3 @@
|
||||
(import (fetchTarball https://github.com/edolstra/flake-compat/archive/master.tar.gz) {
|
||||
src = ./.;
|
||||
}).shellNix
|
||||
@ -102,56 +102,61 @@ std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
|
||||
percentDecode(std::string(match[6])));
|
||||
}
|
||||
|
||||
/* Check if 'url' is a path (either absolute or relative to
|
||||
'baseDir'). If so, search upward to the root of the repo
|
||||
(i.e. the directory containing .git). */
|
||||
|
||||
else if (std::regex_match(url, match, pathUrlRegex)) {
|
||||
std::string path = match[1];
|
||||
if (!baseDir && !hasPrefix(path, "/"))
|
||||
throw BadURL("flake reference '%s' is not an absolute path", url);
|
||||
path = absPath(path, baseDir, true);
|
||||
std::string fragment = percentDecode(std::string(match[3]));
|
||||
|
||||
if (!S_ISDIR(lstat(path).st_mode))
|
||||
throw BadURL("path '%s' is not a flake (because it's not a directory)", path);
|
||||
if (baseDir) {
|
||||
/* Check if 'url' is a path (either absolute or relative
|
||||
to 'baseDir'). If so, search upward to the root of the
|
||||
repo (i.e. the directory containing .git). */
|
||||
|
||||
if (!allowMissing && !pathExists(path + "/flake.nix"))
|
||||
throw BadURL("path '%s' is not a flake (because it doesn't contain a 'flake.nix' file)", path);
|
||||
path = absPath(path, baseDir, true);
|
||||
|
||||
auto fragment = percentDecode(std::string(match[3]));
|
||||
if (!S_ISDIR(lstat(path).st_mode))
|
||||
throw BadURL("path '%s' is not a flake (because it's not a directory)", path);
|
||||
|
||||
auto flakeRoot = path;
|
||||
std::string subdir;
|
||||
if (!allowMissing && !pathExists(path + "/flake.nix"))
|
||||
throw BadURL("path '%s' is not a flake (because it doesn't contain a 'flake.nix' file)", path);
|
||||
|
||||
while (flakeRoot != "/") {
|
||||
if (pathExists(flakeRoot + "/.git")) {
|
||||
auto base = std::string("git+file://") + flakeRoot;
|
||||
auto flakeRoot = path;
|
||||
std::string subdir;
|
||||
|
||||
auto parsedURL = ParsedURL{
|
||||
.url = base, // FIXME
|
||||
.base = base,
|
||||
.scheme = "git+file",
|
||||
.authority = "",
|
||||
.path = flakeRoot,
|
||||
.query = decodeQuery(match[2]),
|
||||
};
|
||||
while (flakeRoot != "/") {
|
||||
if (pathExists(flakeRoot + "/.git")) {
|
||||
auto base = std::string("git+file://") + flakeRoot;
|
||||
|
||||
if (subdir != "") {
|
||||
if (parsedURL.query.count("dir"))
|
||||
throw Error("flake URL '%s' has an inconsistent 'dir' parameter", url);
|
||||
parsedURL.query.insert_or_assign("dir", subdir);
|
||||
auto parsedURL = ParsedURL{
|
||||
.url = base, // FIXME
|
||||
.base = base,
|
||||
.scheme = "git+file",
|
||||
.authority = "",
|
||||
.path = flakeRoot,
|
||||
.query = decodeQuery(match[2]),
|
||||
};
|
||||
|
||||
if (subdir != "") {
|
||||
if (parsedURL.query.count("dir"))
|
||||
throw Error("flake URL '%s' has an inconsistent 'dir' parameter", url);
|
||||
parsedURL.query.insert_or_assign("dir", subdir);
|
||||
}
|
||||
|
||||
if (pathExists(flakeRoot + "/.git/shallow"))
|
||||
parsedURL.query.insert_or_assign("shallow", "1");
|
||||
|
||||
return std::make_pair(
|
||||
FlakeRef(Input::fromURL(parsedURL), get(parsedURL.query, "dir").value_or("")),
|
||||
fragment);
|
||||
}
|
||||
|
||||
if (pathExists(flakeRoot + "/.git/shallow"))
|
||||
parsedURL.query.insert_or_assign("shallow", "1");
|
||||
|
||||
return std::make_pair(
|
||||
FlakeRef(Input::fromURL(parsedURL), get(parsedURL.query, "dir").value_or("")),
|
||||
fragment);
|
||||
subdir = std::string(baseNameOf(flakeRoot)) + (subdir.empty() ? "" : "/" + subdir);
|
||||
flakeRoot = dirOf(flakeRoot);
|
||||
}
|
||||
|
||||
subdir = std::string(baseNameOf(flakeRoot)) + (subdir.empty() ? "" : "/" + subdir);
|
||||
flakeRoot = dirOf(flakeRoot);
|
||||
} else {
|
||||
if (!hasPrefix(path, "/"))
|
||||
throw BadURL("flake reference '%s' is not an absolute path", url);
|
||||
path = canonPath(path);
|
||||
}
|
||||
|
||||
fetchers::Attrs attrs;
|
||||
|
||||
@ -2774,7 +2774,7 @@ struct RestrictedStore : public LocalFSStore
|
||||
goal.addDependency(info.path);
|
||||
}
|
||||
|
||||
StorePath addToStoreFromDump(const string & dump, const string & name,
|
||||
StorePath addToStoreFromDump(Source & dump, const string & name,
|
||||
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair) override
|
||||
{
|
||||
auto path = next->addToStoreFromDump(dump, name, method, hashAlgo, repair);
|
||||
|
||||
@ -173,31 +173,6 @@ struct TunnelSource : BufferedSource
|
||||
}
|
||||
};
|
||||
|
||||
/* If the NAR archive contains a single file at top-level, then save
|
||||
the contents of the file to `s'. Otherwise barf. */
|
||||
struct RetrieveRegularNARSink : ParseSink
|
||||
{
|
||||
bool regular;
|
||||
string s;
|
||||
|
||||
RetrieveRegularNARSink() : regular(true) { }
|
||||
|
||||
void createDirectory(const Path & path)
|
||||
{
|
||||
regular = false;
|
||||
}
|
||||
|
||||
void receiveContents(unsigned char * data, unsigned int len)
|
||||
{
|
||||
s.append((const char *) data, len);
|
||||
}
|
||||
|
||||
void createSymlink(const Path & path, const string & target)
|
||||
{
|
||||
regular = false;
|
||||
}
|
||||
};
|
||||
|
||||
struct ClientSettings
|
||||
{
|
||||
bool keepFailed;
|
||||
@ -375,25 +350,28 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
|
||||
}
|
||||
|
||||
case wopAddToStore: {
|
||||
std::string s, baseName;
|
||||
HashType hashAlgo;
|
||||
std::string baseName;
|
||||
FileIngestionMethod method;
|
||||
{
|
||||
bool fixed; uint8_t recursive;
|
||||
from >> baseName >> fixed /* obsolete */ >> recursive >> s;
|
||||
bool fixed;
|
||||
uint8_t recursive;
|
||||
std::string hashAlgoRaw;
|
||||
from >> baseName >> fixed /* obsolete */ >> recursive >> hashAlgoRaw;
|
||||
if (recursive > (uint8_t) FileIngestionMethod::Recursive)
|
||||
throw Error("unsupported FileIngestionMethod with value of %i; you may need to upgrade nix-daemon", recursive);
|
||||
method = FileIngestionMethod { recursive };
|
||||
/* Compatibility hack. */
|
||||
if (!fixed) {
|
||||
s = "sha256";
|
||||
hashAlgoRaw = "sha256";
|
||||
method = FileIngestionMethod::Recursive;
|
||||
}
|
||||
hashAlgo = parseHashType(hashAlgoRaw);
|
||||
}
|
||||
HashType hashAlgo = parseHashType(s);
|
||||
|
||||
StringSink savedNAR;
|
||||
TeeSource savedNARSource(from, savedNAR);
|
||||
RetrieveRegularNARSink savedRegular;
|
||||
StringSink saved;
|
||||
TeeSource savedNARSource(from, saved);
|
||||
RetrieveRegularNARSink savedRegular { saved };
|
||||
|
||||
if (method == FileIngestionMethod::Recursive) {
|
||||
/* Get the entire NAR dump from the client and save it to
|
||||
@ -407,11 +385,9 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
|
||||
logger->startWork();
|
||||
if (!savedRegular.regular) throw Error("regular file expected");
|
||||
|
||||
auto path = store->addToStoreFromDump(
|
||||
method == FileIngestionMethod::Recursive ? *savedNAR.s : savedRegular.s,
|
||||
baseName,
|
||||
method,
|
||||
hashAlgo);
|
||||
// FIXME: try to stream directly from `from`.
|
||||
StringSource dumpSource { *saved.s };
|
||||
auto path = store->addToStoreFromDump(dumpSource, baseName, method, hashAlgo);
|
||||
logger->stopWork();
|
||||
|
||||
to << store->printStorePath(path);
|
||||
@ -727,15 +703,15 @@ static void performOp(TunnelLogger * logger, ref<Store> store,
|
||||
if (!trusted)
|
||||
info.ultimate = false;
|
||||
|
||||
std::string saved;
|
||||
std::unique_ptr<Source> source;
|
||||
if (GET_PROTOCOL_MINOR(clientVersion) >= 21)
|
||||
source = std::make_unique<TunnelSource>(from, to);
|
||||
else {
|
||||
TeeParseSink tee(from);
|
||||
parseDump(tee, tee.source);
|
||||
saved = std::move(*tee.saved.s);
|
||||
source = std::make_unique<StringSource>(saved);
|
||||
StringSink saved;
|
||||
TeeSource tee { from, saved };
|
||||
ParseSink ether;
|
||||
parseDump(ether, tee);
|
||||
source = std::make_unique<StringSource>(std::move(*saved.s));
|
||||
}
|
||||
|
||||
logger->startWork();
|
||||
|
||||
@ -60,8 +60,10 @@ StorePaths Store::importPaths(Source & source, CheckSigsFlag checkSigs)
|
||||
if (n != 1) throw Error("input doesn't look like something created by 'nix-store --export'");
|
||||
|
||||
/* Extract the NAR from the source. */
|
||||
TeeParseSink tee(source);
|
||||
parseDump(tee, tee.source);
|
||||
StringSink saved;
|
||||
TeeSource tee { source, saved };
|
||||
ParseSink ether;
|
||||
parseDump(ether, tee);
|
||||
|
||||
uint32_t magic = readInt(source);
|
||||
if (magic != exportMagic)
|
||||
@ -77,15 +79,15 @@ StorePaths Store::importPaths(Source & source, CheckSigsFlag checkSigs)
|
||||
if (deriver != "")
|
||||
info.deriver = parseStorePath(deriver);
|
||||
|
||||
info.narHash = hashString(htSHA256, *tee.saved.s);
|
||||
info.narSize = tee.saved.s->size();
|
||||
info.narHash = hashString(htSHA256, *saved.s);
|
||||
info.narSize = saved.s->size();
|
||||
|
||||
// Ignore optional legacy signature.
|
||||
if (readInt(source) == 1)
|
||||
readString(source);
|
||||
|
||||
// Can't use underlying source, which would have been exhausted
|
||||
auto source = StringSource { *tee.saved.s };
|
||||
auto source = StringSource { *saved.s };
|
||||
addToStore(info, source, NoRepair, checkSigs);
|
||||
|
||||
res.push_back(info.path);
|
||||
|
||||
@ -1033,82 +1033,26 @@ void LocalStore::addToStore(const ValidPathInfo & info, Source & source,
|
||||
}
|
||||
|
||||
|
||||
StorePath LocalStore::addToStoreFromDump(const string & dump, const string & name,
|
||||
FileIngestionMethod method, HashType hashAlgo, RepairFlag repair)
|
||||
{
|
||||
Hash h = hashString(hashAlgo, dump);
|
||||
|
||||
auto dstPath = makeFixedOutputPath(method, h, name);
|
||||
|
||||
addTempRoot(dstPath);
|
||||
|
||||
if (repair || !isValidPath(dstPath)) {
|
||||
|
||||
/* The first check above is an optimisation to prevent
|
||||
unnecessary lock acquisition. */
|
||||
|
||||
auto realPath = Store::toRealPath(dstPath);
|
||||
|
||||
PathLocks outputLock({realPath});
|
||||
|
||||
if (repair || !isValidPath(dstPath)) {
|
||||
|
||||
deletePath(realPath);
|
||||
|
||||
autoGC();
|
||||
|
||||
if (method == FileIngestionMethod::Recursive) {
|
||||
StringSource source(dump);
|
||||
restorePath(realPath, source);
|
||||
} else
|
||||
writeFile(realPath, dump);
|
||||
|
||||
canonicalisePathMetaData(realPath, -1);
|
||||
|
||||
/* Register the SHA-256 hash of the NAR serialisation of
|
||||
the path in the database. We may just have computed it
|
||||
above (if called with recursive == true and hashAlgo ==
|
||||
sha256); otherwise, compute it here. */
|
||||
HashResult hash;
|
||||
if (method == FileIngestionMethod::Recursive) {
|
||||
hash.first = hashAlgo == htSHA256 ? h : hashString(htSHA256, dump);
|
||||
hash.second = dump.size();
|
||||
} else
|
||||
hash = hashPath(htSHA256, realPath);
|
||||
|
||||
optimisePath(realPath); // FIXME: combine with hashPath()
|
||||
|
||||
ValidPathInfo info(dstPath);
|
||||
info.narHash = hash.first;
|
||||
info.narSize = hash.second;
|
||||
info.ca = FixedOutputHash { .method = method, .hash = h };
|
||||
registerValidPath(info);
|
||||
}
|
||||
|
||||
outputLock.setDeletion(true);
|
||||
}
|
||||
|
||||
return dstPath;
|
||||
}
|
||||
|
||||
|
||||
StorePath LocalStore::addToStore(const string & name, const Path & _srcPath,
|
||||
FileIngestionMethod method, HashType hashAlgo, PathFilter & filter, RepairFlag repair)
|
||||
{
|
||||
Path srcPath(absPath(_srcPath));
|
||||
auto source = sinkToSource([&](Sink & sink) {
|
||||
if (method == FileIngestionMethod::Recursive)
|
||||
dumpPath(srcPath, sink, filter);
|
||||
else
|
||||
readFile(srcPath, sink);
|
||||
});
|
||||
return addToStoreFromDump(*source, name, method, hashAlgo, repair);
|
||||
}
|
||||
|
||||
if (method != FileIngestionMethod::Recursive)
|
||||
return addToStoreFromDump(readFile(srcPath), name, method, hashAlgo, repair);
|
||||
|
||||
/* For computing the NAR hash. */
|
||||
auto sha256Sink = std::make_unique<HashSink>(htSHA256);
|
||||
|
||||
/* For computing the store path. In recursive SHA-256 mode, this
|
||||
is the same as the NAR hash, so no need to do it again. */
|
||||
std::unique_ptr<HashSink> hashSink =
|
||||
hashAlgo == htSHA256
|
||||
? nullptr
|
||||
: std::make_unique<HashSink>(hashAlgo);
|
||||
StorePath LocalStore::addToStoreFromDump(Source & source0, const string & name,
|
||||
FileIngestionMethod method, HashType hashAlgo, RepairFlag repair)
|
||||
{
|
||||
/* For computing the store path. */
|
||||
auto hashSink = std::make_unique<HashSink>(hashAlgo);
|
||||
TeeSource source { source0, *hashSink };
|
||||
|
||||
/* Read the source path into memory, but only if it's up to
|
||||
narBufferSize bytes. If it's larger, write it to a temporary
|
||||
@ -1116,55 +1060,49 @@ StorePath LocalStore::addToStore(const string & name, const Path & _srcPath,
|
||||
destination store path is already valid, we just delete the
|
||||
temporary path. Otherwise, we move it to the destination store
|
||||
path. */
|
||||
bool inMemory = true;
|
||||
std::string nar;
|
||||
bool inMemory = false;
|
||||
|
||||
auto source = sinkToSource([&](Sink & sink) {
|
||||
std::string dump;
|
||||
|
||||
LambdaSink sink2([&](const unsigned char * buf, size_t len) {
|
||||
(*sha256Sink)(buf, len);
|
||||
if (hashSink) (*hashSink)(buf, len);
|
||||
|
||||
if (inMemory) {
|
||||
if (nar.size() + len > settings.narBufferSize) {
|
||||
inMemory = false;
|
||||
sink << 1;
|
||||
sink((const unsigned char *) nar.data(), nar.size());
|
||||
nar.clear();
|
||||
} else {
|
||||
nar.append((const char *) buf, len);
|
||||
}
|
||||
}
|
||||
|
||||
if (!inMemory) sink(buf, len);
|
||||
});
|
||||
|
||||
dumpPath(srcPath, sink2, filter);
|
||||
});
|
||||
/* Fill out buffer, and decide whether we are working strictly in
|
||||
memory based on whether we break out because the buffer is full
|
||||
or the original source is empty */
|
||||
while (dump.size() < settings.narBufferSize) {
|
||||
auto oldSize = dump.size();
|
||||
constexpr size_t chunkSize = 1024;
|
||||
auto want = std::min(chunkSize, settings.narBufferSize - oldSize);
|
||||
dump.resize(oldSize + want);
|
||||
auto got = 0;
|
||||
try {
|
||||
got = source.read((uint8_t *) dump.data() + oldSize, want);
|
||||
} catch (EndOfFile &) {
|
||||
inMemory = true;
|
||||
break;
|
||||
}
|
||||
dump.resize(oldSize + got);
|
||||
}
|
||||
|
||||
std::unique_ptr<AutoDelete> delTempDir;
|
||||
Path tempPath;
|
||||
|
||||
try {
|
||||
/* Wait for the source coroutine to give us some dummy
|
||||
data. This is so that we don't create the temporary
|
||||
directory if the NAR fits in memory. */
|
||||
readInt(*source);
|
||||
if (!inMemory) {
|
||||
/* Drain what we pulled so far, and then keep on pulling */
|
||||
StringSource dumpSource { dump };
|
||||
ChainSource bothSource { dumpSource, source };
|
||||
|
||||
auto tempDir = createTempDir(realStoreDir, "add");
|
||||
delTempDir = std::make_unique<AutoDelete>(tempDir);
|
||||
tempPath = tempDir + "/x";
|
||||
|
||||
restorePath(tempPath, *source);
|
||||
if (method == FileIngestionMethod::Recursive)
|
||||
restorePath(tempPath, bothSource);
|
||||
else
|
||||
writeFile(tempPath, bothSource);
|
||||
|
||||
} catch (EndOfFile &) {
|
||||
if (!inMemory) throw;
|
||||
/* The NAR fits in memory, so we didn't do restorePath(). */
|
||||
dump.clear();
|
||||
}
|
||||
|
||||
auto sha256 = sha256Sink->finish();
|
||||
|
||||
Hash hash = hashSink ? hashSink->finish().first : sha256.first;
|
||||
auto [hash, size] = hashSink->finish();
|
||||
|
||||
auto dstPath = makeFixedOutputPath(method, hash, name);
|
||||
|
||||
@ -1186,22 +1124,34 @@ StorePath LocalStore::addToStore(const string & name, const Path & _srcPath,
|
||||
autoGC();
|
||||
|
||||
if (inMemory) {
|
||||
StringSource dumpSource { dump };
|
||||
/* Restore from the NAR in memory. */
|
||||
StringSource source(nar);
|
||||
restorePath(realPath, source);
|
||||
if (method == FileIngestionMethod::Recursive)
|
||||
restorePath(realPath, dumpSource);
|
||||
else
|
||||
writeFile(realPath, dumpSource);
|
||||
} else {
|
||||
/* Move the temporary path we restored above. */
|
||||
if (rename(tempPath.c_str(), realPath.c_str()))
|
||||
throw Error("renaming '%s' to '%s'", tempPath, realPath);
|
||||
}
|
||||
|
||||
/* For computing the nar hash. In recursive SHA-256 mode, this
|
||||
is the same as the store hash, so no need to do it again. */
|
||||
auto narHash = std::pair { hash, size };
|
||||
if (method != FileIngestionMethod::Recursive || hashAlgo != htSHA256) {
|
||||
HashSink narSink { htSHA256 };
|
||||
dumpPath(realPath, narSink);
|
||||
narHash = narSink.finish();
|
||||
}
|
||||
|
||||
canonicalisePathMetaData(realPath, -1); // FIXME: merge into restorePath
|
||||
|
||||
optimisePath(realPath);
|
||||
|
||||
ValidPathInfo info(dstPath);
|
||||
info.narHash = sha256.first;
|
||||
info.narSize = sha256.second;
|
||||
info.narHash = narHash.first;
|
||||
info.narSize = narHash.second;
|
||||
info.ca = FixedOutputHash { .method = method, .hash = hash };
|
||||
registerValidPath(info);
|
||||
}
|
||||
|
||||
@ -153,7 +153,7 @@ public:
|
||||
in `dump', which is either a NAR serialisation (if recursive ==
|
||||
true) or simply the contents of a regular file (if recursive ==
|
||||
false). */
|
||||
StorePath addToStoreFromDump(const string & dump, const string & name,
|
||||
StorePath addToStoreFromDump(Source & dump, const string & name,
|
||||
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair) override;
|
||||
|
||||
StorePath addTextToStore(const string & name, const string & s,
|
||||
|
||||
@ -12,30 +12,24 @@
|
||||
namespace nix {
|
||||
|
||||
|
||||
static bool cmpGensByNumber(const Generation & a, const Generation & b)
|
||||
{
|
||||
return a.number < b.number;
|
||||
}
|
||||
|
||||
|
||||
/* Parse a generation name of the format
|
||||
`<profilename>-<number>-link'. */
|
||||
static int parseName(const string & profileName, const string & name)
|
||||
static std::optional<GenerationNumber> parseName(const string & profileName, const string & name)
|
||||
{
|
||||
if (string(name, 0, profileName.size() + 1) != profileName + "-") return -1;
|
||||
if (string(name, 0, profileName.size() + 1) != profileName + "-") return {};
|
||||
string s = string(name, profileName.size() + 1);
|
||||
string::size_type p = s.find("-link");
|
||||
if (p == string::npos) return -1;
|
||||
int n;
|
||||
if (p == string::npos) return {};
|
||||
unsigned int n;
|
||||
if (string2Int(string(s, 0, p), n) && n >= 0)
|
||||
return n;
|
||||
else
|
||||
return -1;
|
||||
return {};
|
||||
}
|
||||
|
||||
|
||||
|
||||
Generations findGenerations(Path profile, int & curGen)
|
||||
std::pair<Generations, std::optional<GenerationNumber>> findGenerations(Path profile)
|
||||
{
|
||||
Generations gens;
|
||||
|
||||
@ -43,30 +37,34 @@ Generations findGenerations(Path profile, int & curGen)
|
||||
auto profileName = std::string(baseNameOf(profile));
|
||||
|
||||
for (auto & i : readDirectory(profileDir)) {
|
||||
int n;
|
||||
if ((n = parseName(profileName, i.name)) != -1) {
|
||||
Generation gen;
|
||||
gen.path = profileDir + "/" + i.name;
|
||||
gen.number = n;
|
||||
if (auto n = parseName(profileName, i.name)) {
|
||||
auto path = profileDir + "/" + i.name;
|
||||
struct stat st;
|
||||
if (lstat(gen.path.c_str(), &st) != 0)
|
||||
throw SysError("statting '%1%'", gen.path);
|
||||
gen.creationTime = st.st_mtime;
|
||||
gens.push_back(gen);
|
||||
if (lstat(path.c_str(), &st) != 0)
|
||||
throw SysError("statting '%1%'", path);
|
||||
gens.push_back({
|
||||
.number = *n,
|
||||
.path = path,
|
||||
.creationTime = st.st_mtime
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
gens.sort(cmpGensByNumber);
|
||||
gens.sort([](const Generation & a, const Generation & b)
|
||||
{
|
||||
return a.number < b.number;
|
||||
});
|
||||
|
||||
curGen = pathExists(profile)
|
||||
return {
|
||||
gens,
|
||||
pathExists(profile)
|
||||
? parseName(profileName, readLink(profile))
|
||||
: -1;
|
||||
|
||||
return gens;
|
||||
: std::nullopt
|
||||
};
|
||||
}
|
||||
|
||||
|
||||
static void makeName(const Path & profile, unsigned int num,
|
||||
static void makeName(const Path & profile, GenerationNumber num,
|
||||
Path & outLink)
|
||||
{
|
||||
Path prefix = (format("%1%-%2%") % profile % num).str();
|
||||
@ -78,10 +76,9 @@ Path createGeneration(ref<LocalFSStore> store, Path profile, Path outPath)
|
||||
{
|
||||
/* The new generation number should be higher than old the
|
||||
previous ones. */
|
||||
int dummy;
|
||||
Generations gens = findGenerations(profile, dummy);
|
||||
auto [gens, dummy] = findGenerations(profile);
|
||||
|
||||
unsigned int num;
|
||||
GenerationNumber num;
|
||||
if (gens.size() > 0) {
|
||||
Generation last = gens.back();
|
||||
|
||||
@ -121,7 +118,7 @@ static void removeFile(const Path & path)
|
||||
}
|
||||
|
||||
|
||||
void deleteGeneration(const Path & profile, unsigned int gen)
|
||||
void deleteGeneration(const Path & profile, GenerationNumber gen)
|
||||
{
|
||||
Path generation;
|
||||
makeName(profile, gen, generation);
|
||||
@ -129,7 +126,7 @@ void deleteGeneration(const Path & profile, unsigned int gen)
|
||||
}
|
||||
|
||||
|
||||
static void deleteGeneration2(const Path & profile, unsigned int gen, bool dryRun)
|
||||
static void deleteGeneration2(const Path & profile, GenerationNumber gen, bool dryRun)
|
||||
{
|
||||
if (dryRun)
|
||||
printInfo(format("would remove generation %1%") % gen);
|
||||
@ -140,31 +137,29 @@ static void deleteGeneration2(const Path & profile, unsigned int gen, bool dryRu
|
||||
}
|
||||
|
||||
|
||||
void deleteGenerations(const Path & profile, const std::set<unsigned int> & gensToDelete, bool dryRun)
|
||||
void deleteGenerations(const Path & profile, const std::set<GenerationNumber> & gensToDelete, bool dryRun)
|
||||
{
|
||||
PathLocks lock;
|
||||
lockProfile(lock, profile);
|
||||
|
||||
int curGen;
|
||||
Generations gens = findGenerations(profile, curGen);
|
||||
auto [gens, curGen] = findGenerations(profile);
|
||||
|
||||
if (gensToDelete.find(curGen) != gensToDelete.end())
|
||||
if (gensToDelete.count(*curGen))
|
||||
throw Error("cannot delete current generation of profile %1%'", profile);
|
||||
|
||||
for (auto & i : gens) {
|
||||
if (gensToDelete.find(i.number) == gensToDelete.end()) continue;
|
||||
if (!gensToDelete.count(i.number)) continue;
|
||||
deleteGeneration2(profile, i.number, dryRun);
|
||||
}
|
||||
}
|
||||
|
||||
void deleteGenerationsGreaterThan(const Path & profile, int max, bool dryRun)
|
||||
void deleteGenerationsGreaterThan(const Path & profile, GenerationNumber max, bool dryRun)
|
||||
{
|
||||
PathLocks lock;
|
||||
lockProfile(lock, profile);
|
||||
|
||||
int curGen;
|
||||
bool fromCurGen = false;
|
||||
Generations gens = findGenerations(profile, curGen);
|
||||
auto [gens, curGen] = findGenerations(profile);
|
||||
for (auto i = gens.rbegin(); i != gens.rend(); ++i) {
|
||||
if (i->number == curGen) {
|
||||
fromCurGen = true;
|
||||
@ -186,8 +181,7 @@ void deleteOldGenerations(const Path & profile, bool dryRun)
|
||||
PathLocks lock;
|
||||
lockProfile(lock, profile);
|
||||
|
||||
int curGen;
|
||||
Generations gens = findGenerations(profile, curGen);
|
||||
auto [gens, curGen] = findGenerations(profile);
|
||||
|
||||
for (auto & i : gens)
|
||||
if (i.number != curGen)
|
||||
@ -200,8 +194,7 @@ void deleteGenerationsOlderThan(const Path & profile, time_t t, bool dryRun)
|
||||
PathLocks lock;
|
||||
lockProfile(lock, profile);
|
||||
|
||||
int curGen;
|
||||
Generations gens = findGenerations(profile, curGen);
|
||||
auto [gens, curGen] = findGenerations(profile);
|
||||
|
||||
bool canDelete = false;
|
||||
for (auto i = gens.rbegin(); i != gens.rend(); ++i)
|
||||
|
||||
@ -9,37 +9,32 @@
|
||||
namespace nix {
|
||||
|
||||
|
||||
typedef unsigned int GenerationNumber;
|
||||
|
||||
struct Generation
|
||||
{
|
||||
int number;
|
||||
GenerationNumber number;
|
||||
Path path;
|
||||
time_t creationTime;
|
||||
Generation()
|
||||
{
|
||||
number = -1;
|
||||
}
|
||||
operator bool() const
|
||||
{
|
||||
return number != -1;
|
||||
}
|
||||
};
|
||||
|
||||
typedef list<Generation> Generations;
|
||||
typedef std::list<Generation> Generations;
|
||||
|
||||
|
||||
/* Returns the list of currently present generations for the specified
|
||||
profile, sorted by generation number. */
|
||||
Generations findGenerations(Path profile, int & curGen);
|
||||
profile, sorted by generation number. Also returns the number of
|
||||
the current generation. */
|
||||
std::pair<Generations, std::optional<GenerationNumber>> findGenerations(Path profile);
|
||||
|
||||
class LocalFSStore;
|
||||
|
||||
Path createGeneration(ref<LocalFSStore> store, Path profile, Path outPath);
|
||||
|
||||
void deleteGeneration(const Path & profile, unsigned int gen);
|
||||
void deleteGeneration(const Path & profile, GenerationNumber gen);
|
||||
|
||||
void deleteGenerations(const Path & profile, const std::set<unsigned int> & gensToDelete, bool dryRun);
|
||||
void deleteGenerations(const Path & profile, const std::set<GenerationNumber> & gensToDelete, bool dryRun);
|
||||
|
||||
void deleteGenerationsGreaterThan(const Path & profile, const int max, bool dryRun);
|
||||
void deleteGenerationsGreaterThan(const Path & profile, GenerationNumber max, bool dryRun);
|
||||
|
||||
void deleteOldGenerations(const Path & profile, bool dryRun);
|
||||
|
||||
|
||||
@ -222,20 +222,73 @@ StorePath Store::computeStorePathForText(const string & name, const string & s,
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
The aim of this function is to compute in one pass the correct ValidPathInfo for
|
||||
the files that we are trying to add to the store. To accomplish that in one
|
||||
pass, given the different kind of inputs that we can take (normal nar archives,
|
||||
nar archives with non SHA-256 hashes, and flat files), we set up a net of sinks
|
||||
and aliases. Also, since the dataflow is obfuscated by this, we include here a
|
||||
graphviz diagram:
|
||||
|
||||
digraph graphname {
|
||||
node [shape=box]
|
||||
fileSource -> narSink
|
||||
narSink [style=dashed]
|
||||
narSink -> unsualHashTee [style = dashed, label = "Recursive && !SHA-256"]
|
||||
narSink -> narHashSink [style = dashed, label = "else"]
|
||||
unsualHashTee -> narHashSink
|
||||
unsualHashTee -> caHashSink
|
||||
fileSource -> parseSink
|
||||
parseSink [style=dashed]
|
||||
parseSink-> fileSink [style = dashed, label = "Flat"]
|
||||
parseSink -> blank [style = dashed, label = "Recursive"]
|
||||
fileSink -> caHashSink
|
||||
}
|
||||
*/
|
||||
ValidPathInfo Store::addToStoreSlow(std::string_view name, const Path & srcPath,
|
||||
FileIngestionMethod method, HashType hashAlgo,
|
||||
std::optional<Hash> expectedCAHash)
|
||||
{
|
||||
/* FIXME: inefficient: we're reading/hashing 'tmpFile' three
|
||||
times. */
|
||||
HashSink narHashSink { htSHA256 };
|
||||
HashSink caHashSink { hashAlgo };
|
||||
|
||||
auto [narHash, narSize] = hashPath(htSHA256, srcPath);
|
||||
/* Note that fileSink and unusualHashTee must be mutually exclusive, since
|
||||
they both write to caHashSink. Note that that requisite is currently true
|
||||
because the former is only used in the flat case. */
|
||||
RetrieveRegularNARSink fileSink { caHashSink };
|
||||
TeeSink unusualHashTee { narHashSink, caHashSink };
|
||||
|
||||
auto hash = method == FileIngestionMethod::Recursive
|
||||
? hashAlgo == htSHA256
|
||||
? narHash
|
||||
: hashPath(hashAlgo, srcPath).first
|
||||
: hashFile(hashAlgo, srcPath);
|
||||
auto & narSink = method == FileIngestionMethod::Recursive && hashAlgo != htSHA256
|
||||
? static_cast<Sink &>(unusualHashTee)
|
||||
: narHashSink;
|
||||
|
||||
/* Functionally, this means that fileSource will yield the content of
|
||||
srcPath. The fact that we use scratchpadSink as a temporary buffer here
|
||||
is an implementation detail. */
|
||||
auto fileSource = sinkToSource([&](Sink & scratchpadSink) {
|
||||
dumpPath(srcPath, scratchpadSink);
|
||||
});
|
||||
|
||||
/* tapped provides the same data as fileSource, but we also write all the
|
||||
information to narSink. */
|
||||
TeeSource tapped { *fileSource, narSink };
|
||||
|
||||
ParseSink blank;
|
||||
auto & parseSink = method == FileIngestionMethod::Flat
|
||||
? fileSink
|
||||
: blank;
|
||||
|
||||
/* The information that flows from tapped (besides being replicated in
|
||||
narSink), is now put in parseSink. */
|
||||
parseDump(parseSink, tapped);
|
||||
|
||||
/* We extract the result of the computation from the sink by calling
|
||||
finish. */
|
||||
auto [narHash, narSize] = narHashSink.finish();
|
||||
|
||||
auto hash = method == FileIngestionMethod::Recursive && hashAlgo == htSHA256
|
||||
? narHash
|
||||
: caHashSink.finish().first;
|
||||
|
||||
if (expectedCAHash && expectedCAHash != hash)
|
||||
throw Error("hash mismatch for '%s'", srcPath);
|
||||
@ -246,8 +299,8 @@ ValidPathInfo Store::addToStoreSlow(std::string_view name, const Path & srcPath,
|
||||
info.ca = FixedOutputHash { .method = method, .hash = hash };
|
||||
|
||||
if (!isValidPath(info.path)) {
|
||||
auto source = sinkToSource([&](Sink & sink) {
|
||||
dumpPath(srcPath, sink);
|
||||
auto source = sinkToSource([&](Sink & scratchpadSink) {
|
||||
dumpPath(srcPath, scratchpadSink);
|
||||
});
|
||||
addToStore(info, *source);
|
||||
}
|
||||
|
||||
@ -460,7 +460,7 @@ public:
|
||||
std::optional<Hash> expectedCAHash = {});
|
||||
|
||||
// FIXME: remove?
|
||||
virtual StorePath addToStoreFromDump(const string & dump, const string & name,
|
||||
virtual StorePath addToStoreFromDump(Source & dump, const string & name,
|
||||
FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair)
|
||||
{
|
||||
throw Error("addToStoreFromDump() is not supported by this store");
|
||||
|
||||
@ -63,12 +63,29 @@ struct ParseSink
|
||||
virtual void createSymlink(const Path & path, const string & target) { };
|
||||
};
|
||||
|
||||
struct TeeParseSink : ParseSink
|
||||
/* If the NAR archive contains a single file at top-level, then save
|
||||
the contents of the file to `s'. Otherwise barf. */
|
||||
struct RetrieveRegularNARSink : ParseSink
|
||||
{
|
||||
StringSink saved;
|
||||
TeeSource source;
|
||||
bool regular = true;
|
||||
Sink & sink;
|
||||
|
||||
TeeParseSink(Source & source) : source(source, saved) { }
|
||||
RetrieveRegularNARSink(Sink & sink) : sink(sink) { }
|
||||
|
||||
void createDirectory(const Path & path)
|
||||
{
|
||||
regular = false;
|
||||
}
|
||||
|
||||
void receiveContents(unsigned char * data, unsigned int len)
|
||||
{
|
||||
sink(data, len);
|
||||
}
|
||||
|
||||
void createSymlink(const Path & path, const string & target)
|
||||
{
|
||||
regular = false;
|
||||
}
|
||||
};
|
||||
|
||||
void parseDump(ParseSink & sink, Source & source);
|
||||
|
||||
@ -322,5 +322,18 @@ void StringSink::operator () (const unsigned char * data, size_t len)
|
||||
s->append((const char *) data, len);
|
||||
}
|
||||
|
||||
size_t ChainSource::read(unsigned char * data, size_t len)
|
||||
{
|
||||
if (useSecond) {
|
||||
return source2.read(data, len);
|
||||
} else {
|
||||
try {
|
||||
return source1.read(data, len);
|
||||
} catch (EndOfFile &) {
|
||||
useSecond = true;
|
||||
return this->read(data, len);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -189,7 +189,7 @@ struct TeeSource : Source
|
||||
size_t read(unsigned char * data, size_t len)
|
||||
{
|
||||
size_t n = orig.read(data, len);
|
||||
sink(data, len);
|
||||
sink(data, n);
|
||||
return n;
|
||||
}
|
||||
};
|
||||
@ -256,6 +256,19 @@ struct LambdaSource : Source
|
||||
}
|
||||
};
|
||||
|
||||
/* Chain two sources together so after the first is exhausted, the second is
|
||||
used */
|
||||
struct ChainSource : Source
|
||||
{
|
||||
Source & source1, & source2;
|
||||
bool useSecond = false;
|
||||
ChainSource(Source & s1, Source & s2)
|
||||
: source1(s1), source2(s2)
|
||||
{ }
|
||||
|
||||
size_t read(unsigned char * data, size_t len) override;
|
||||
};
|
||||
|
||||
|
||||
/* Convert a function that feeds data into a Sink into a Source. The
|
||||
Source executes the function as a coroutine. */
|
||||
|
||||
@ -1208,18 +1208,17 @@ static void opSwitchProfile(Globals & globals, Strings opFlags, Strings opArgs)
|
||||
}
|
||||
|
||||
|
||||
static const int prevGen = -2;
|
||||
static constexpr GenerationNumber prevGen = std::numeric_limits<GenerationNumber>::max();
|
||||
|
||||
|
||||
static void switchGeneration(Globals & globals, int dstGen)
|
||||
static void switchGeneration(Globals & globals, GenerationNumber dstGen)
|
||||
{
|
||||
PathLocks lock;
|
||||
lockProfile(lock, globals.profile);
|
||||
|
||||
int curGen;
|
||||
Generations gens = findGenerations(globals.profile, curGen);
|
||||
auto [gens, curGen] = findGenerations(globals.profile);
|
||||
|
||||
Generation dst;
|
||||
std::optional<Generation> dst;
|
||||
for (auto & i : gens)
|
||||
if ((dstGen == prevGen && i.number < curGen) ||
|
||||
(dstGen >= 0 && i.number == dstGen))
|
||||
@ -1227,18 +1226,16 @@ static void switchGeneration(Globals & globals, int dstGen)
|
||||
|
||||
if (!dst) {
|
||||
if (dstGen == prevGen)
|
||||
throw Error("no generation older than the current (%1%) exists",
|
||||
curGen);
|
||||
throw Error("no generation older than the current (%1%) exists", curGen.value_or(0));
|
||||
else
|
||||
throw Error("generation %1% does not exist", dstGen);
|
||||
}
|
||||
|
||||
printInfo(format("switching from generation %1% to %2%")
|
||||
% curGen % dst.number);
|
||||
printInfo("switching from generation %1% to %2%", curGen.value_or(0), dst->number);
|
||||
|
||||
if (globals.dryRun) return;
|
||||
|
||||
switchLink(globals.profile, dst.path);
|
||||
switchLink(globals.profile, dst->path);
|
||||
}
|
||||
|
||||
|
||||
@ -1249,7 +1246,7 @@ static void opSwitchGeneration(Globals & globals, Strings opFlags, Strings opArg
|
||||
if (opArgs.size() != 1)
|
||||
throw UsageError("exactly one argument expected");
|
||||
|
||||
int dstGen;
|
||||
GenerationNumber dstGen;
|
||||
if (!string2Int(opArgs.front(), dstGen))
|
||||
throw UsageError("expected a generation number");
|
||||
|
||||
@ -1278,8 +1275,7 @@ static void opListGenerations(Globals & globals, Strings opFlags, Strings opArgs
|
||||
PathLocks lock;
|
||||
lockProfile(lock, globals.profile);
|
||||
|
||||
int curGen;
|
||||
Generations gens = findGenerations(globals.profile, curGen);
|
||||
auto [gens, curGen] = findGenerations(globals.profile);
|
||||
|
||||
RunPager pager;
|
||||
|
||||
@ -1308,14 +1304,14 @@ static void opDeleteGenerations(Globals & globals, Strings opFlags, Strings opAr
|
||||
if(opArgs.front().size() < 2)
|
||||
throw Error("invalid number of generations ‘%1%’", opArgs.front());
|
||||
string str_max = string(opArgs.front(), 1, opArgs.front().size());
|
||||
int max;
|
||||
GenerationNumber max;
|
||||
if (!string2Int(str_max, max) || max == 0)
|
||||
throw Error("invalid number of generations to keep ‘%1%’", opArgs.front());
|
||||
deleteGenerationsGreaterThan(globals.profile, max, globals.dryRun);
|
||||
} else {
|
||||
std::set<unsigned int> gens;
|
||||
std::set<GenerationNumber> gens;
|
||||
for (auto & i : opArgs) {
|
||||
unsigned int n;
|
||||
GenerationNumber n;
|
||||
if (!string2Int(i, n))
|
||||
throw UsageError("invalid generation number '%1%'", i);
|
||||
gens.insert(n);
|
||||
|
||||
@ -244,4 +244,10 @@ void completeFlakeRefWithFragment(
|
||||
const Strings & defaultFlakeAttrPaths,
|
||||
std::string_view prefix);
|
||||
|
||||
void printClosureDiff(
|
||||
ref<Store> store,
|
||||
const StorePath & beforePath,
|
||||
const StorePath & afterPath,
|
||||
std::string_view indent);
|
||||
|
||||
}
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
|
||||
#include <regex>
|
||||
|
||||
using namespace nix;
|
||||
namespace nix {
|
||||
|
||||
struct Info
|
||||
{
|
||||
@ -52,6 +52,60 @@ std::string showVersions(const std::set<std::string> & versions)
|
||||
return concatStringsSep(", ", versions2);
|
||||
}
|
||||
|
||||
void printClosureDiff(
|
||||
ref<Store> store,
|
||||
const StorePath & beforePath,
|
||||
const StorePath & afterPath,
|
||||
std::string_view indent)
|
||||
{
|
||||
auto beforeClosure = getClosureInfo(store, beforePath);
|
||||
auto afterClosure = getClosureInfo(store, afterPath);
|
||||
|
||||
std::set<std::string> allNames;
|
||||
for (auto & [name, _] : beforeClosure) allNames.insert(name);
|
||||
for (auto & [name, _] : afterClosure) allNames.insert(name);
|
||||
|
||||
for (auto & name : allNames) {
|
||||
auto & beforeVersions = beforeClosure[name];
|
||||
auto & afterVersions = afterClosure[name];
|
||||
|
||||
auto totalSize = [&](const std::map<std::string, std::map<StorePath, Info>> & versions)
|
||||
{
|
||||
uint64_t sum = 0;
|
||||
for (auto & [_, paths] : versions)
|
||||
for (auto & [path, _] : paths)
|
||||
sum += store->queryPathInfo(path)->narSize;
|
||||
return sum;
|
||||
};
|
||||
|
||||
auto beforeSize = totalSize(beforeVersions);
|
||||
auto afterSize = totalSize(afterVersions);
|
||||
auto sizeDelta = (int64_t) afterSize - (int64_t) beforeSize;
|
||||
auto showDelta = abs(sizeDelta) >= 8 * 1024;
|
||||
|
||||
std::set<std::string> removed, unchanged;
|
||||
for (auto & [version, _] : beforeVersions)
|
||||
if (!afterVersions.count(version)) removed.insert(version); else unchanged.insert(version);
|
||||
|
||||
std::set<std::string> added;
|
||||
for (auto & [version, _] : afterVersions)
|
||||
if (!beforeVersions.count(version)) added.insert(version);
|
||||
|
||||
if (showDelta || !removed.empty() || !added.empty()) {
|
||||
std::vector<std::string> items;
|
||||
if (!removed.empty() || !added.empty())
|
||||
items.push_back(fmt("%s → %s", showVersions(removed), showVersions(added)));
|
||||
if (showDelta)
|
||||
items.push_back(fmt("%s%+.1f KiB" ANSI_NORMAL, sizeDelta > 0 ? ANSI_RED : ANSI_GREEN, sizeDelta / 1024.0));
|
||||
std::cout << fmt("%s%s: %s\n", indent, name, concatStringsSep(", ", items));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
using namespace nix;
|
||||
|
||||
struct CmdDiffClosures : SourceExprCommand
|
||||
{
|
||||
std::string _before, _after;
|
||||
@ -85,49 +139,7 @@ struct CmdDiffClosures : SourceExprCommand
|
||||
auto beforePath = toStorePath(store, Realise::Outputs, operateOn, before);
|
||||
auto after = parseInstallable(store, _after);
|
||||
auto afterPath = toStorePath(store, Realise::Outputs, operateOn, after);
|
||||
|
||||
auto beforeClosure = getClosureInfo(store, beforePath);
|
||||
auto afterClosure = getClosureInfo(store, afterPath);
|
||||
|
||||
std::set<std::string> allNames;
|
||||
for (auto & [name, _] : beforeClosure) allNames.insert(name);
|
||||
for (auto & [name, _] : afterClosure) allNames.insert(name);
|
||||
|
||||
for (auto & name : allNames) {
|
||||
auto & beforeVersions = beforeClosure[name];
|
||||
auto & afterVersions = afterClosure[name];
|
||||
|
||||
auto totalSize = [&](const std::map<std::string, std::map<StorePath, Info>> & versions)
|
||||
{
|
||||
uint64_t sum = 0;
|
||||
for (auto & [_, paths] : versions)
|
||||
for (auto & [path, _] : paths)
|
||||
sum += store->queryPathInfo(path)->narSize;
|
||||
return sum;
|
||||
};
|
||||
|
||||
auto beforeSize = totalSize(beforeVersions);
|
||||
auto afterSize = totalSize(afterVersions);
|
||||
auto sizeDelta = (int64_t) afterSize - (int64_t) beforeSize;
|
||||
auto showDelta = abs(sizeDelta) >= 8 * 1024;
|
||||
|
||||
std::set<std::string> removed, unchanged;
|
||||
for (auto & [version, _] : beforeVersions)
|
||||
if (!afterVersions.count(version)) removed.insert(version); else unchanged.insert(version);
|
||||
|
||||
std::set<std::string> added;
|
||||
for (auto & [version, _] : afterVersions)
|
||||
if (!beforeVersions.count(version)) added.insert(version);
|
||||
|
||||
if (showDelta || !removed.empty() || !added.empty()) {
|
||||
std::vector<std::string> items;
|
||||
if (!removed.empty() || !added.empty())
|
||||
items.push_back(fmt("%s → %s", showVersions(removed), showVersions(added)));
|
||||
if (showDelta)
|
||||
items.push_back(fmt("%s%+.1f KiB" ANSI_NORMAL, sizeDelta > 0 ? ANSI_RED : ANSI_GREEN, sizeDelta / 1024.0));
|
||||
std::cout << fmt("%s: %s\n", name, concatStringsSep(", ", items));
|
||||
}
|
||||
}
|
||||
printClosureDiff(store, beforePath, afterPath, "");
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
@ -45,6 +45,7 @@ struct CmdEdit : InstallableCommand
|
||||
|
||||
auto args = editorFor(pos);
|
||||
|
||||
restoreSignals();
|
||||
execvp(args.front().c_str(), stringsToCharPtrs(args).data());
|
||||
|
||||
std::string command;
|
||||
|
||||
@ -7,6 +7,7 @@
|
||||
#include "builtins/buildenv.hh"
|
||||
#include "flake/flakeref.hh"
|
||||
#include "../nix-env/user-env.hh"
|
||||
#include "profiles.hh"
|
||||
|
||||
#include <nlohmann/json.hpp>
|
||||
#include <regex>
|
||||
@ -394,6 +395,46 @@ struct CmdProfileInfo : virtual EvalCommand, virtual StoreCommand, MixDefaultPro
|
||||
}
|
||||
};
|
||||
|
||||
struct CmdProfileDiffClosures : virtual StoreCommand, MixDefaultProfile
|
||||
{
|
||||
std::string description() override
|
||||
{
|
||||
return "show the closure difference between each generation of a profile";
|
||||
}
|
||||
|
||||
Examples examples() override
|
||||
{
|
||||
return {
|
||||
Example{
|
||||
"To show what changed between each generation of the NixOS system profile:",
|
||||
"nix profile diff-closure --profile /nix/var/nix/profiles/system"
|
||||
},
|
||||
};
|
||||
}
|
||||
|
||||
void run(ref<Store> store) override
|
||||
{
|
||||
auto [gens, curGen] = findGenerations(*profile);
|
||||
|
||||
std::optional<Generation> prevGen;
|
||||
bool first = true;
|
||||
|
||||
for (auto & gen : gens) {
|
||||
if (prevGen) {
|
||||
if (!first) std::cout << "\n";
|
||||
first = false;
|
||||
std::cout << fmt("Generation %d -> %d:\n", prevGen->number, gen.number);
|
||||
printClosureDiff(store,
|
||||
store->followLinksToStorePath(prevGen->path),
|
||||
store->followLinksToStorePath(gen.path),
|
||||
" ");
|
||||
}
|
||||
|
||||
prevGen = gen;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
struct CmdProfile : virtual MultiCommand, virtual Command
|
||||
{
|
||||
CmdProfile()
|
||||
@ -402,6 +443,7 @@ struct CmdProfile : virtual MultiCommand, virtual Command
|
||||
{"remove", []() { return make_ref<CmdProfileRemove>(); }},
|
||||
{"upgrade", []() { return make_ref<CmdProfileUpgrade>(); }},
|
||||
{"info", []() { return make_ref<CmdProfileInfo>(); }},
|
||||
{"diff-closures", []() { return make_ref<CmdProfileDiffClosures>(); }},
|
||||
})
|
||||
{ }
|
||||
|
||||
@ -425,4 +467,3 @@ struct CmdProfile : virtual MultiCommand, virtual Command
|
||||
};
|
||||
|
||||
static auto r1 = registerCommand<CmdProfile>("profile");
|
||||
|
||||
|
||||
@ -18,7 +18,6 @@ registry=$TEST_ROOT/registry.json
|
||||
flake1Dir=$TEST_ROOT/flake1
|
||||
flake2Dir=$TEST_ROOT/flake2
|
||||
flake3Dir=$TEST_ROOT/flake3
|
||||
flake4Dir=$TEST_ROOT/flake4
|
||||
flake5Dir=$TEST_ROOT/flake5
|
||||
flake6Dir=$TEST_ROOT/flake6
|
||||
flake7Dir=$TEST_ROOT/flake7
|
||||
@ -390,14 +389,12 @@ cat > $flake3Dir/flake.nix <<EOF
|
||||
};
|
||||
}
|
||||
EOF
|
||||
git -C $flake3Dir add flake.nix
|
||||
nix flake update $flake3Dir
|
||||
git -C $flake3Dir add flake.nix flake.lock
|
||||
git -C $flake3Dir commit -m 'Remove packages.xyzzy'
|
||||
git -C $flake3Dir checkout master
|
||||
|
||||
# Test whether fuzzy-matching works for IsAlias
|
||||
(! nix build -o $TEST_ROOT/result flake4/removeXyzzy#xyzzy)
|
||||
|
||||
# Test whether fuzzy-matching works for IsGit
|
||||
# Test whether fuzzy-matching works for registry entries.
|
||||
(! nix build -o $TEST_ROOT/result flake4/removeXyzzy#xyzzy)
|
||||
nix build -o $TEST_ROOT/result flake4/removeXyzzy#sth
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user