style(3p/nix): Reformat project in Google C++ style
Reformatted with:
fd . -e hh -e cc | xargs clang-format -i
This commit is contained in:
Vincent Ambo
parent
65a1aae98c
commit
0f2cf531f7
175 changed files with 32126 additions and 34689 deletions
408
third_party/nix/src/libstore/nar-accessor.cc
vendored
408
third_party/nix/src/libstore/nar-accessor.cc
vendored
|
|
@ -1,266 +1,242 @@
|
|||
#include "nar-accessor.hh"
|
||||
#include <algorithm>
|
||||
#include <map>
|
||||
#include <nlohmann/json.hpp>
|
||||
#include <stack>
|
||||
#include "archive.hh"
|
||||
#include "json.hh"
|
||||
|
||||
#include <map>
|
||||
#include <stack>
|
||||
#include <algorithm>
|
||||
|
||||
#include <nlohmann/json.hpp>
|
||||
|
||||
namespace nix {
|
||||
|
||||
struct NarMember
|
||||
{
|
||||
FSAccessor::Type type = FSAccessor::Type::tMissing;
|
||||
struct NarMember {
|
||||
FSAccessor::Type type = FSAccessor::Type::tMissing;
|
||||
|
||||
bool isExecutable = false;
|
||||
bool isExecutable = false;
|
||||
|
||||
/* If this is a regular file, position of the contents of this
|
||||
file in the NAR. */
|
||||
size_t start = 0, size = 0;
|
||||
/* If this is a regular file, position of the contents of this
|
||||
file in the NAR. */
|
||||
size_t start = 0, size = 0;
|
||||
|
||||
std::string target;
|
||||
std::string target;
|
||||
|
||||
/* If this is a directory, all the children of the directory. */
|
||||
std::map<std::string, NarMember> children;
|
||||
/* If this is a directory, all the children of the directory. */
|
||||
std::map<std::string, NarMember> children;
|
||||
};
|
||||
|
||||
struct NarAccessor : public FSAccessor
|
||||
{
|
||||
std::shared_ptr<const std::string> nar;
|
||||
struct NarAccessor : public FSAccessor {
|
||||
std::shared_ptr<const std::string> nar;
|
||||
|
||||
GetNarBytes getNarBytes;
|
||||
GetNarBytes getNarBytes;
|
||||
|
||||
NarMember root;
|
||||
NarMember root;
|
||||
|
||||
struct NarIndexer : ParseSink, StringSource
|
||||
{
|
||||
NarAccessor & acc;
|
||||
struct NarIndexer : ParseSink, StringSource {
|
||||
NarAccessor& acc;
|
||||
|
||||
std::stack<NarMember *> parents;
|
||||
std::stack<NarMember*> parents;
|
||||
|
||||
std::string currentStart;
|
||||
bool isExec = false;
|
||||
std::string currentStart;
|
||||
bool isExec = false;
|
||||
|
||||
NarIndexer(NarAccessor & acc, const std::string & nar)
|
||||
: StringSource(nar), acc(acc)
|
||||
{ }
|
||||
NarIndexer(NarAccessor& acc, const std::string& nar)
|
||||
: StringSource(nar), acc(acc) {}
|
||||
|
||||
void createMember(const Path & path, NarMember member) {
|
||||
size_t level = std::count(path.begin(), path.end(), '/');
|
||||
while (parents.size() > level) parents.pop();
|
||||
void createMember(const Path& path, NarMember member) {
|
||||
size_t level = std::count(path.begin(), path.end(), '/');
|
||||
while (parents.size() > level) parents.pop();
|
||||
|
||||
if (parents.empty()) {
|
||||
acc.root = std::move(member);
|
||||
parents.push(&acc.root);
|
||||
} else {
|
||||
if (parents.top()->type != FSAccessor::Type::tDirectory)
|
||||
throw Error("NAR file missing parent directory of path '%s'", path);
|
||||
auto result = parents.top()->children.emplace(baseNameOf(path), std::move(member));
|
||||
parents.push(&result.first->second);
|
||||
}
|
||||
}
|
||||
|
||||
void createDirectory(const Path & path) override
|
||||
{
|
||||
createMember(path, {FSAccessor::Type::tDirectory, false, 0, 0});
|
||||
}
|
||||
|
||||
void createRegularFile(const Path & path) override
|
||||
{
|
||||
createMember(path, {FSAccessor::Type::tRegular, false, 0, 0});
|
||||
}
|
||||
|
||||
void isExecutable() override
|
||||
{
|
||||
parents.top()->isExecutable = true;
|
||||
}
|
||||
|
||||
void preallocateContents(unsigned long long size) override
|
||||
{
|
||||
currentStart = string(s, pos, 16);
|
||||
assert(size <= std::numeric_limits<size_t>::max());
|
||||
parents.top()->size = (size_t)size;
|
||||
parents.top()->start = pos;
|
||||
}
|
||||
|
||||
void receiveContents(unsigned char * data, unsigned int len) override
|
||||
{
|
||||
// Sanity check
|
||||
if (!currentStart.empty()) {
|
||||
assert(len < 16 || currentStart == string((char *) data, 16));
|
||||
currentStart.clear();
|
||||
}
|
||||
}
|
||||
|
||||
void createSymlink(const Path & path, const string & target) override
|
||||
{
|
||||
createMember(path,
|
||||
NarMember{FSAccessor::Type::tSymlink, false, 0, 0, target});
|
||||
if (parents.empty()) {
|
||||
acc.root = std::move(member);
|
||||
parents.push(&acc.root);
|
||||
} else {
|
||||
if (parents.top()->type != FSAccessor::Type::tDirectory)
|
||||
throw Error("NAR file missing parent directory of path '%s'", path);
|
||||
auto result = parents.top()->children.emplace(baseNameOf(path),
|
||||
std::move(member));
|
||||
parents.push(&result.first->second);
|
||||
}
|
||||
}
|
||||
|
||||
void createDirectory(const Path& path) override {
|
||||
createMember(path, {FSAccessor::Type::tDirectory, false, 0, 0});
|
||||
}
|
||||
|
||||
void createRegularFile(const Path& path) override {
|
||||
createMember(path, {FSAccessor::Type::tRegular, false, 0, 0});
|
||||
}
|
||||
|
||||
void isExecutable() override { parents.top()->isExecutable = true; }
|
||||
|
||||
void preallocateContents(unsigned long long size) override {
|
||||
currentStart = string(s, pos, 16);
|
||||
assert(size <= std::numeric_limits<size_t>::max());
|
||||
parents.top()->size = (size_t)size;
|
||||
parents.top()->start = pos;
|
||||
}
|
||||
|
||||
void receiveContents(unsigned char* data, unsigned int len) override {
|
||||
// Sanity check
|
||||
if (!currentStart.empty()) {
|
||||
assert(len < 16 || currentStart == string((char*)data, 16));
|
||||
currentStart.clear();
|
||||
}
|
||||
}
|
||||
|
||||
void createSymlink(const Path& path, const string& target) override {
|
||||
createMember(path,
|
||||
NarMember{FSAccessor::Type::tSymlink, false, 0, 0, target});
|
||||
}
|
||||
};
|
||||
|
||||
NarAccessor(ref<const std::string> nar) : nar(nar) {
|
||||
NarIndexer indexer(*this, *nar);
|
||||
parseDump(indexer, indexer);
|
||||
}
|
||||
|
||||
NarAccessor(const std::string& listing, GetNarBytes getNarBytes)
|
||||
: getNarBytes(getNarBytes) {
|
||||
using json = nlohmann::json;
|
||||
|
||||
std::function<void(NarMember&, json&)> recurse;
|
||||
|
||||
recurse = [&](NarMember& member, json& v) {
|
||||
std::string type = v["type"];
|
||||
|
||||
if (type == "directory") {
|
||||
member.type = FSAccessor::Type::tDirectory;
|
||||
for (auto i = v["entries"].begin(); i != v["entries"].end(); ++i) {
|
||||
std::string name = i.key();
|
||||
recurse(member.children[name], i.value());
|
||||
}
|
||||
} else if (type == "regular") {
|
||||
member.type = FSAccessor::Type::tRegular;
|
||||
member.size = v["size"];
|
||||
member.isExecutable = v.value("executable", false);
|
||||
member.start = v["narOffset"];
|
||||
} else if (type == "symlink") {
|
||||
member.type = FSAccessor::Type::tSymlink;
|
||||
member.target = v.value("target", "");
|
||||
} else
|
||||
return;
|
||||
};
|
||||
|
||||
NarAccessor(ref<const std::string> nar) : nar(nar)
|
||||
{
|
||||
NarIndexer indexer(*this, *nar);
|
||||
parseDump(indexer, indexer);
|
||||
json v = json::parse(listing);
|
||||
recurse(root, v);
|
||||
}
|
||||
|
||||
NarMember* find(const Path& path) {
|
||||
Path canon = path == "" ? "" : canonPath(path);
|
||||
NarMember* current = &root;
|
||||
auto end = path.end();
|
||||
for (auto it = path.begin(); it != end;) {
|
||||
// because it != end, the remaining component is non-empty so we need
|
||||
// a directory
|
||||
if (current->type != FSAccessor::Type::tDirectory) return nullptr;
|
||||
|
||||
// skip slash (canonPath above ensures that this is always a slash)
|
||||
assert(*it == '/');
|
||||
it += 1;
|
||||
|
||||
// lookup current component
|
||||
auto next = std::find(it, end, '/');
|
||||
auto child = current->children.find(std::string(it, next));
|
||||
if (child == current->children.end()) return nullptr;
|
||||
current = &child->second;
|
||||
|
||||
it = next;
|
||||
}
|
||||
|
||||
NarAccessor(const std::string & listing, GetNarBytes getNarBytes)
|
||||
: getNarBytes(getNarBytes)
|
||||
{
|
||||
using json = nlohmann::json;
|
||||
return current;
|
||||
}
|
||||
|
||||
std::function<void(NarMember &, json &)> recurse;
|
||||
NarMember& get(const Path& path) {
|
||||
auto result = find(path);
|
||||
if (result == nullptr)
|
||||
throw Error("NAR file does not contain path '%1%'", path);
|
||||
return *result;
|
||||
}
|
||||
|
||||
recurse = [&](NarMember & member, json & v) {
|
||||
std::string type = v["type"];
|
||||
Stat stat(const Path& path) override {
|
||||
auto i = find(path);
|
||||
if (i == nullptr) return {FSAccessor::Type::tMissing, 0, false};
|
||||
return {i->type, i->size, i->isExecutable, i->start};
|
||||
}
|
||||
|
||||
if (type == "directory") {
|
||||
member.type = FSAccessor::Type::tDirectory;
|
||||
for (auto i = v["entries"].begin(); i != v["entries"].end(); ++i) {
|
||||
std::string name = i.key();
|
||||
recurse(member.children[name], i.value());
|
||||
}
|
||||
} else if (type == "regular") {
|
||||
member.type = FSAccessor::Type::tRegular;
|
||||
member.size = v["size"];
|
||||
member.isExecutable = v.value("executable", false);
|
||||
member.start = v["narOffset"];
|
||||
} else if (type == "symlink") {
|
||||
member.type = FSAccessor::Type::tSymlink;
|
||||
member.target = v.value("target", "");
|
||||
} else return;
|
||||
};
|
||||
StringSet readDirectory(const Path& path) override {
|
||||
auto i = get(path);
|
||||
|
||||
json v = json::parse(listing);
|
||||
recurse(root, v);
|
||||
}
|
||||
if (i.type != FSAccessor::Type::tDirectory)
|
||||
throw Error(format("path '%1%' inside NAR file is not a directory") %
|
||||
path);
|
||||
|
||||
NarMember * find(const Path & path)
|
||||
{
|
||||
Path canon = path == "" ? "" : canonPath(path);
|
||||
NarMember * current = &root;
|
||||
auto end = path.end();
|
||||
for (auto it = path.begin(); it != end; ) {
|
||||
// because it != end, the remaining component is non-empty so we need
|
||||
// a directory
|
||||
if (current->type != FSAccessor::Type::tDirectory) return nullptr;
|
||||
StringSet res;
|
||||
for (auto& child : i.children) res.insert(child.first);
|
||||
|
||||
// skip slash (canonPath above ensures that this is always a slash)
|
||||
assert(*it == '/');
|
||||
it += 1;
|
||||
return res;
|
||||
}
|
||||
|
||||
// lookup current component
|
||||
auto next = std::find(it, end, '/');
|
||||
auto child = current->children.find(std::string(it, next));
|
||||
if (child == current->children.end()) return nullptr;
|
||||
current = &child->second;
|
||||
std::string readFile(const Path& path) override {
|
||||
auto i = get(path);
|
||||
if (i.type != FSAccessor::Type::tRegular)
|
||||
throw Error(format("path '%1%' inside NAR file is not a regular file") %
|
||||
path);
|
||||
|
||||
it = next;
|
||||
}
|
||||
if (getNarBytes) return getNarBytes(i.start, i.size);
|
||||
|
||||
return current;
|
||||
}
|
||||
assert(nar);
|
||||
return std::string(*nar, i.start, i.size);
|
||||
}
|
||||
|
||||
NarMember & get(const Path & path) {
|
||||
auto result = find(path);
|
||||
if (result == nullptr)
|
||||
throw Error("NAR file does not contain path '%1%'", path);
|
||||
return *result;
|
||||
}
|
||||
|
||||
Stat stat(const Path & path) override
|
||||
{
|
||||
auto i = find(path);
|
||||
if (i == nullptr)
|
||||
return {FSAccessor::Type::tMissing, 0, false};
|
||||
return {i->type, i->size, i->isExecutable, i->start};
|
||||
}
|
||||
|
||||
StringSet readDirectory(const Path & path) override
|
||||
{
|
||||
auto i = get(path);
|
||||
|
||||
if (i.type != FSAccessor::Type::tDirectory)
|
||||
throw Error(format("path '%1%' inside NAR file is not a directory") % path);
|
||||
|
||||
StringSet res;
|
||||
for (auto & child : i.children)
|
||||
res.insert(child.first);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
std::string readFile(const Path & path) override
|
||||
{
|
||||
auto i = get(path);
|
||||
if (i.type != FSAccessor::Type::tRegular)
|
||||
throw Error(format("path '%1%' inside NAR file is not a regular file") % path);
|
||||
|
||||
if (getNarBytes) return getNarBytes(i.start, i.size);
|
||||
|
||||
assert(nar);
|
||||
return std::string(*nar, i.start, i.size);
|
||||
}
|
||||
|
||||
std::string readLink(const Path & path) override
|
||||
{
|
||||
auto i = get(path);
|
||||
if (i.type != FSAccessor::Type::tSymlink)
|
||||
throw Error(format("path '%1%' inside NAR file is not a symlink") % path);
|
||||
return i.target;
|
||||
}
|
||||
std::string readLink(const Path& path) override {
|
||||
auto i = get(path);
|
||||
if (i.type != FSAccessor::Type::tSymlink)
|
||||
throw Error(format("path '%1%' inside NAR file is not a symlink") % path);
|
||||
return i.target;
|
||||
}
|
||||
};
|
||||
|
||||
ref<FSAccessor> makeNarAccessor(ref<const std::string> nar)
|
||||
{
|
||||
return make_ref<NarAccessor>(nar);
|
||||
ref<FSAccessor> makeNarAccessor(ref<const std::string> nar) {
|
||||
return make_ref<NarAccessor>(nar);
|
||||
}
|
||||
|
||||
ref<FSAccessor> makeLazyNarAccessor(const std::string & listing,
|
||||
GetNarBytes getNarBytes)
|
||||
{
|
||||
return make_ref<NarAccessor>(listing, getNarBytes);
|
||||
ref<FSAccessor> makeLazyNarAccessor(const std::string& listing,
|
||||
GetNarBytes getNarBytes) {
|
||||
return make_ref<NarAccessor>(listing, getNarBytes);
|
||||
}
|
||||
|
||||
void listNar(JSONPlaceholder & res, ref<FSAccessor> accessor,
|
||||
const Path & path, bool recurse)
|
||||
{
|
||||
auto st = accessor->stat(path);
|
||||
void listNar(JSONPlaceholder& res, ref<FSAccessor> accessor, const Path& path,
|
||||
bool recurse) {
|
||||
auto st = accessor->stat(path);
|
||||
|
||||
auto obj = res.object();
|
||||
auto obj = res.object();
|
||||
|
||||
switch (st.type) {
|
||||
switch (st.type) {
|
||||
case FSAccessor::Type::tRegular:
|
||||
obj.attr("type", "regular");
|
||||
obj.attr("size", st.fileSize);
|
||||
if (st.isExecutable)
|
||||
obj.attr("executable", true);
|
||||
if (st.narOffset)
|
||||
obj.attr("narOffset", st.narOffset);
|
||||
break;
|
||||
obj.attr("type", "regular");
|
||||
obj.attr("size", st.fileSize);
|
||||
if (st.isExecutable) obj.attr("executable", true);
|
||||
if (st.narOffset) obj.attr("narOffset", st.narOffset);
|
||||
break;
|
||||
case FSAccessor::Type::tDirectory:
|
||||
obj.attr("type", "directory");
|
||||
{
|
||||
auto res2 = obj.object("entries");
|
||||
for (auto & name : accessor->readDirectory(path)) {
|
||||
if (recurse) {
|
||||
auto res3 = res2.placeholder(name);
|
||||
listNar(res3, accessor, path + "/" + name, true);
|
||||
} else
|
||||
res2.object(name);
|
||||
}
|
||||
obj.attr("type", "directory");
|
||||
{
|
||||
auto res2 = obj.object("entries");
|
||||
for (auto& name : accessor->readDirectory(path)) {
|
||||
if (recurse) {
|
||||
auto res3 = res2.placeholder(name);
|
||||
listNar(res3, accessor, path + "/" + name, true);
|
||||
} else
|
||||
res2.object(name);
|
||||
}
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case FSAccessor::Type::tSymlink:
|
||||
obj.attr("type", "symlink");
|
||||
obj.attr("target", accessor->readLink(path));
|
||||
break;
|
||||
obj.attr("type", "symlink");
|
||||
obj.attr("target", accessor->readLink(path));
|
||||
break;
|
||||
default:
|
||||
throw Error("path '%s' does not exist in NAR", path);
|
||||
}
|
||||
throw Error("path '%s' does not exist in NAR", path);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
} // namespace nix
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue