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
404
third_party/nix/src/nix-channel/nix-channel.cc
vendored
Executable file → Normal file
404
third_party/nix/src/nix-channel/nix-channel.cc
vendored
Executable file → Normal file
|
|
@ -1,248 +1,250 @@
|
|||
#include "shared.hh"
|
||||
#include "globals.hh"
|
||||
#include "download.hh"
|
||||
#include "store-api.hh"
|
||||
#include "legacy.hh"
|
||||
|
||||
#include <fcntl.h>
|
||||
#include <regex>
|
||||
#include <pwd.h>
|
||||
#include <regex>
|
||||
#include "download.hh"
|
||||
#include "globals.hh"
|
||||
#include "legacy.hh"
|
||||
#include "shared.hh"
|
||||
#include "store-api.hh"
|
||||
|
||||
using namespace nix;
|
||||
|
||||
typedef std::map<string,string> Channels;
|
||||
typedef std::map<string, string> Channels;
|
||||
|
||||
static Channels channels;
|
||||
static Path channelsList;
|
||||
|
||||
// Reads the list of channels.
|
||||
static void readChannels()
|
||||
{
|
||||
if (!pathExists(channelsList)) return;
|
||||
auto channelsFile = readFile(channelsList);
|
||||
static void readChannels() {
|
||||
if (!pathExists(channelsList)) return;
|
||||
auto channelsFile = readFile(channelsList);
|
||||
|
||||
for (const auto & line : tokenizeString<std::vector<string>>(channelsFile, "\n")) {
|
||||
chomp(line);
|
||||
if (std::regex_search(line, std::regex("^\\s*\\#")))
|
||||
continue;
|
||||
auto split = tokenizeString<std::vector<string>>(line, " ");
|
||||
auto url = std::regex_replace(split[0], std::regex("/*$"), "");
|
||||
auto name = split.size() > 1 ? split[1] : baseNameOf(url);
|
||||
channels[name] = url;
|
||||
}
|
||||
for (const auto& line :
|
||||
tokenizeString<std::vector<string>>(channelsFile, "\n")) {
|
||||
chomp(line);
|
||||
if (std::regex_search(line, std::regex("^\\s*\\#"))) continue;
|
||||
auto split = tokenizeString<std::vector<string>>(line, " ");
|
||||
auto url = std::regex_replace(split[0], std::regex("/*$"), "");
|
||||
auto name = split.size() > 1 ? split[1] : baseNameOf(url);
|
||||
channels[name] = url;
|
||||
}
|
||||
}
|
||||
|
||||
// Writes the list of channels.
|
||||
static void writeChannels()
|
||||
{
|
||||
auto channelsFD = AutoCloseFD{open(channelsList.c_str(), O_WRONLY | O_CLOEXEC | O_CREAT | O_TRUNC, 0644)};
|
||||
if (!channelsFD)
|
||||
throw SysError(format("opening '%1%' for writing") % channelsList);
|
||||
for (const auto & channel : channels)
|
||||
writeFull(channelsFD.get(), channel.second + " " + channel.first + "\n");
|
||||
static void writeChannels() {
|
||||
auto channelsFD = AutoCloseFD{open(
|
||||
channelsList.c_str(), O_WRONLY | O_CLOEXEC | O_CREAT | O_TRUNC, 0644)};
|
||||
if (!channelsFD)
|
||||
throw SysError(format("opening '%1%' for writing") % channelsList);
|
||||
for (const auto& channel : channels)
|
||||
writeFull(channelsFD.get(), channel.second + " " + channel.first + "\n");
|
||||
}
|
||||
|
||||
// Adds a channel.
|
||||
static void addChannel(const string & url, const string & name)
|
||||
{
|
||||
if (!regex_search(url, std::regex("^(file|http|https)://")))
|
||||
throw Error(format("invalid channel URL '%1%'") % url);
|
||||
if (!regex_search(name, std::regex("^[a-zA-Z0-9_][a-zA-Z0-9_\\.-]*$")))
|
||||
throw Error(format("invalid channel identifier '%1%'") % name);
|
||||
readChannels();
|
||||
channels[name] = url;
|
||||
writeChannels();
|
||||
static void addChannel(const string& url, const string& name) {
|
||||
if (!regex_search(url, std::regex("^(file|http|https)://")))
|
||||
throw Error(format("invalid channel URL '%1%'") % url);
|
||||
if (!regex_search(name, std::regex("^[a-zA-Z0-9_][a-zA-Z0-9_\\.-]*$")))
|
||||
throw Error(format("invalid channel identifier '%1%'") % name);
|
||||
readChannels();
|
||||
channels[name] = url;
|
||||
writeChannels();
|
||||
}
|
||||
|
||||
static Path profile;
|
||||
|
||||
// Remove a channel.
|
||||
static void removeChannel(const string & name)
|
||||
{
|
||||
readChannels();
|
||||
channels.erase(name);
|
||||
writeChannels();
|
||||
static void removeChannel(const string& name) {
|
||||
readChannels();
|
||||
channels.erase(name);
|
||||
writeChannels();
|
||||
|
||||
runProgram(settings.nixBinDir + "/nix-env", true, { "--profile", profile, "--uninstall", name });
|
||||
runProgram(settings.nixBinDir + "/nix-env", true,
|
||||
{"--profile", profile, "--uninstall", name});
|
||||
}
|
||||
|
||||
static Path nixDefExpr;
|
||||
|
||||
// Fetch Nix expressions and binary cache URLs from the subscribed channels.
|
||||
static void update(const StringSet & channelNames)
|
||||
{
|
||||
readChannels();
|
||||
static void update(const StringSet& channelNames) {
|
||||
readChannels();
|
||||
|
||||
auto store = openStore();
|
||||
auto store = openStore();
|
||||
|
||||
// Download each channel.
|
||||
Strings exprs;
|
||||
for (const auto & channel : channels) {
|
||||
auto name = channel.first;
|
||||
auto url = channel.second;
|
||||
if (!(channelNames.empty() || channelNames.count(name)))
|
||||
continue;
|
||||
// Download each channel.
|
||||
Strings exprs;
|
||||
for (const auto& channel : channels) {
|
||||
auto name = channel.first;
|
||||
auto url = channel.second;
|
||||
if (!(channelNames.empty() || channelNames.count(name))) continue;
|
||||
|
||||
// We want to download the url to a file to see if it's a tarball while also checking if we
|
||||
// got redirected in the process, so that we can grab the various parts of a nix channel
|
||||
// definition from a consistent location if the redirect changes mid-download.
|
||||
CachedDownloadRequest request(url);
|
||||
request.ttl = 0;
|
||||
auto dl = getDownloader();
|
||||
auto result = dl->downloadCached(store, request);
|
||||
auto filename = result.path;
|
||||
url = chomp(result.effectiveUri);
|
||||
// We want to download the url to a file to see if it's a tarball while also
|
||||
// checking if we got redirected in the process, so that we can grab the
|
||||
// various parts of a nix channel definition from a consistent location if
|
||||
// the redirect changes mid-download.
|
||||
CachedDownloadRequest request(url);
|
||||
request.ttl = 0;
|
||||
auto dl = getDownloader();
|
||||
auto result = dl->downloadCached(store, request);
|
||||
auto filename = result.path;
|
||||
url = chomp(result.effectiveUri);
|
||||
|
||||
// If the URL contains a version number, append it to the name
|
||||
// attribute (so that "nix-env -q" on the channels profile
|
||||
// shows something useful).
|
||||
auto cname = name;
|
||||
std::smatch match;
|
||||
auto urlBase = baseNameOf(url);
|
||||
if (std::regex_search(urlBase, match, std::regex("(-\\d.*)$"))) {
|
||||
cname = cname + (string) match[1];
|
||||
}
|
||||
|
||||
std::string extraAttrs;
|
||||
|
||||
bool unpacked = false;
|
||||
if (std::regex_search(filename, std::regex("\\.tar\\.(gz|bz2|xz)$"))) {
|
||||
runProgram(settings.nixBinDir + "/nix-build", false, { "--no-out-link", "--expr", "import <nix/unpack-channel.nix> "
|
||||
"{ name = \"" + cname + "\"; channelName = \"" + name + "\"; src = builtins.storePath \"" + filename + "\"; }" });
|
||||
unpacked = true;
|
||||
}
|
||||
|
||||
if (!unpacked) {
|
||||
// Download the channel tarball.
|
||||
try {
|
||||
filename = dl->downloadCached(store, CachedDownloadRequest(url + "/nixexprs.tar.xz")).path;
|
||||
} catch (DownloadError & e) {
|
||||
filename = dl->downloadCached(store, CachedDownloadRequest(url + "/nixexprs.tar.bz2")).path;
|
||||
}
|
||||
chomp(filename);
|
||||
}
|
||||
|
||||
// Regardless of where it came from, add the expression representing this channel to accumulated expression
|
||||
exprs.push_back("f: f { name = \"" + cname + "\"; channelName = \"" + name + "\"; src = builtins.storePath \"" + filename + "\"; " + extraAttrs + " }");
|
||||
// If the URL contains a version number, append it to the name
|
||||
// attribute (so that "nix-env -q" on the channels profile
|
||||
// shows something useful).
|
||||
auto cname = name;
|
||||
std::smatch match;
|
||||
auto urlBase = baseNameOf(url);
|
||||
if (std::regex_search(urlBase, match, std::regex("(-\\d.*)$"))) {
|
||||
cname = cname + (string)match[1];
|
||||
}
|
||||
|
||||
// Unpack the channel tarballs into the Nix store and install them
|
||||
// into the channels profile.
|
||||
std::cerr << "unpacking channels...\n";
|
||||
Strings envArgs{ "--profile", profile, "--file", "<nix/unpack-channel.nix>", "--install", "--from-expression" };
|
||||
for (auto & expr : exprs)
|
||||
envArgs.push_back(std::move(expr));
|
||||
envArgs.push_back("--quiet");
|
||||
runProgram(settings.nixBinDir + "/nix-env", false, envArgs);
|
||||
std::string extraAttrs;
|
||||
|
||||
// Make the channels appear in nix-env.
|
||||
struct stat st;
|
||||
if (lstat(nixDefExpr.c_str(), &st) == 0) {
|
||||
if (S_ISLNK(st.st_mode))
|
||||
// old-skool ~/.nix-defexpr
|
||||
if (unlink(nixDefExpr.c_str()) == -1)
|
||||
throw SysError(format("unlinking %1%") % nixDefExpr);
|
||||
} else if (errno != ENOENT) {
|
||||
throw SysError(format("getting status of %1%") % nixDefExpr);
|
||||
bool unpacked = false;
|
||||
if (std::regex_search(filename, std::regex("\\.tar\\.(gz|bz2|xz)$"))) {
|
||||
runProgram(settings.nixBinDir + "/nix-build", false,
|
||||
{"--no-out-link", "--expr",
|
||||
"import <nix/unpack-channel.nix> "
|
||||
"{ name = \"" +
|
||||
cname + "\"; channelName = \"" + name +
|
||||
"\"; src = builtins.storePath \"" + filename + "\"; }"});
|
||||
unpacked = true;
|
||||
}
|
||||
createDirs(nixDefExpr);
|
||||
auto channelLink = nixDefExpr + "/channels";
|
||||
replaceSymlink(profile, channelLink);
|
||||
|
||||
if (!unpacked) {
|
||||
// Download the channel tarball.
|
||||
try {
|
||||
filename = dl->downloadCached(
|
||||
store, CachedDownloadRequest(url + "/nixexprs.tar.xz"))
|
||||
.path;
|
||||
} catch (DownloadError& e) {
|
||||
filename =
|
||||
dl->downloadCached(store,
|
||||
CachedDownloadRequest(url + "/nixexprs.tar.bz2"))
|
||||
.path;
|
||||
}
|
||||
chomp(filename);
|
||||
}
|
||||
|
||||
// Regardless of where it came from, add the expression representing this
|
||||
// channel to accumulated expression
|
||||
exprs.push_back("f: f { name = \"" + cname + "\"; channelName = \"" + name +
|
||||
"\"; src = builtins.storePath \"" + filename + "\"; " +
|
||||
extraAttrs + " }");
|
||||
}
|
||||
|
||||
// Unpack the channel tarballs into the Nix store and install them
|
||||
// into the channels profile.
|
||||
std::cerr << "unpacking channels...\n";
|
||||
Strings envArgs{"--profile", profile,
|
||||
"--file", "<nix/unpack-channel.nix>",
|
||||
"--install", "--from-expression"};
|
||||
for (auto& expr : exprs) envArgs.push_back(std::move(expr));
|
||||
envArgs.push_back("--quiet");
|
||||
runProgram(settings.nixBinDir + "/nix-env", false, envArgs);
|
||||
|
||||
// Make the channels appear in nix-env.
|
||||
struct stat st;
|
||||
if (lstat(nixDefExpr.c_str(), &st) == 0) {
|
||||
if (S_ISLNK(st.st_mode))
|
||||
// old-skool ~/.nix-defexpr
|
||||
if (unlink(nixDefExpr.c_str()) == -1)
|
||||
throw SysError(format("unlinking %1%") % nixDefExpr);
|
||||
} else if (errno != ENOENT) {
|
||||
throw SysError(format("getting status of %1%") % nixDefExpr);
|
||||
}
|
||||
createDirs(nixDefExpr);
|
||||
auto channelLink = nixDefExpr + "/channels";
|
||||
replaceSymlink(profile, channelLink);
|
||||
}
|
||||
|
||||
static int _main(int argc, char ** argv)
|
||||
{
|
||||
{
|
||||
// Figure out the name of the `.nix-channels' file to use
|
||||
auto home = getHome();
|
||||
channelsList = home + "/.nix-channels";
|
||||
nixDefExpr = home + "/.nix-defexpr";
|
||||
static int _main(int argc, char** argv) {
|
||||
{
|
||||
// Figure out the name of the `.nix-channels' file to use
|
||||
auto home = getHome();
|
||||
channelsList = home + "/.nix-channels";
|
||||
nixDefExpr = home + "/.nix-defexpr";
|
||||
|
||||
// Figure out the name of the channels profile.
|
||||
profile = fmt("%s/profiles/per-user/%s/channels", settings.nixStateDir, getUserName());
|
||||
// Figure out the name of the channels profile.
|
||||
profile = fmt("%s/profiles/per-user/%s/channels", settings.nixStateDir,
|
||||
getUserName());
|
||||
|
||||
enum {
|
||||
cNone,
|
||||
cAdd,
|
||||
cRemove,
|
||||
cList,
|
||||
cUpdate,
|
||||
cRollback
|
||||
} cmd = cNone;
|
||||
std::vector<string> args;
|
||||
parseCmdLine(argc, argv, [&](Strings::iterator & arg, const Strings::iterator & end) {
|
||||
if (*arg == "--help") {
|
||||
showManPage("nix-channel");
|
||||
} else if (*arg == "--version") {
|
||||
printVersion("nix-channel");
|
||||
} else if (*arg == "--add") {
|
||||
cmd = cAdd;
|
||||
} else if (*arg == "--remove") {
|
||||
cmd = cRemove;
|
||||
} else if (*arg == "--list") {
|
||||
cmd = cList;
|
||||
} else if (*arg == "--update") {
|
||||
cmd = cUpdate;
|
||||
} else if (*arg == "--rollback") {
|
||||
cmd = cRollback;
|
||||
} else {
|
||||
args.push_back(std::move(*arg));
|
||||
}
|
||||
return true;
|
||||
});
|
||||
enum { cNone, cAdd, cRemove, cList, cUpdate, cRollback } cmd = cNone;
|
||||
std::vector<string> args;
|
||||
parseCmdLine(argc, argv,
|
||||
[&](Strings::iterator& arg, const Strings::iterator& end) {
|
||||
if (*arg == "--help") {
|
||||
showManPage("nix-channel");
|
||||
} else if (*arg == "--version") {
|
||||
printVersion("nix-channel");
|
||||
} else if (*arg == "--add") {
|
||||
cmd = cAdd;
|
||||
} else if (*arg == "--remove") {
|
||||
cmd = cRemove;
|
||||
} else if (*arg == "--list") {
|
||||
cmd = cList;
|
||||
} else if (*arg == "--update") {
|
||||
cmd = cUpdate;
|
||||
} else if (*arg == "--rollback") {
|
||||
cmd = cRollback;
|
||||
} else {
|
||||
args.push_back(std::move(*arg));
|
||||
}
|
||||
return true;
|
||||
});
|
||||
|
||||
initPlugins();
|
||||
initPlugins();
|
||||
|
||||
switch (cmd) {
|
||||
case cNone:
|
||||
throw UsageError("no command specified");
|
||||
case cAdd:
|
||||
if (args.size() < 1 || args.size() > 2)
|
||||
throw UsageError("'--add' requires one or two arguments");
|
||||
{
|
||||
auto url = args[0];
|
||||
std::string name;
|
||||
if (args.size() == 2) {
|
||||
name = args[1];
|
||||
} else {
|
||||
name = baseNameOf(url);
|
||||
name = std::regex_replace(name, std::regex("-unstable$"), "");
|
||||
name = std::regex_replace(name, std::regex("-stable$"), "");
|
||||
}
|
||||
addChannel(url, name);
|
||||
}
|
||||
break;
|
||||
case cRemove:
|
||||
if (args.size() != 1)
|
||||
throw UsageError("'--remove' requires one argument");
|
||||
removeChannel(args[0]);
|
||||
break;
|
||||
case cList:
|
||||
if (!args.empty())
|
||||
throw UsageError("'--list' expects no arguments");
|
||||
readChannels();
|
||||
for (const auto & channel : channels)
|
||||
std::cout << channel.first << ' ' << channel.second << '\n';
|
||||
break;
|
||||
case cUpdate:
|
||||
update(StringSet(args.begin(), args.end()));
|
||||
break;
|
||||
case cRollback:
|
||||
if (args.size() > 1)
|
||||
throw UsageError("'--rollback' has at most one argument");
|
||||
Strings envArgs{"--profile", profile};
|
||||
if (args.size() == 1) {
|
||||
envArgs.push_back("--switch-generation");
|
||||
envArgs.push_back(args[0]);
|
||||
} else {
|
||||
envArgs.push_back("--rollback");
|
||||
}
|
||||
runProgram(settings.nixBinDir + "/nix-env", false, envArgs);
|
||||
break;
|
||||
switch (cmd) {
|
||||
case cNone:
|
||||
throw UsageError("no command specified");
|
||||
case cAdd:
|
||||
if (args.size() < 1 || args.size() > 2)
|
||||
throw UsageError("'--add' requires one or two arguments");
|
||||
{
|
||||
auto url = args[0];
|
||||
std::string name;
|
||||
if (args.size() == 2) {
|
||||
name = args[1];
|
||||
} else {
|
||||
name = baseNameOf(url);
|
||||
name = std::regex_replace(name, std::regex("-unstable$"), "");
|
||||
name = std::regex_replace(name, std::regex("-stable$"), "");
|
||||
}
|
||||
addChannel(url, name);
|
||||
}
|
||||
|
||||
return 0;
|
||||
break;
|
||||
case cRemove:
|
||||
if (args.size() != 1)
|
||||
throw UsageError("'--remove' requires one argument");
|
||||
removeChannel(args[0]);
|
||||
break;
|
||||
case cList:
|
||||
if (!args.empty()) throw UsageError("'--list' expects no arguments");
|
||||
readChannels();
|
||||
for (const auto& channel : channels)
|
||||
std::cout << channel.first << ' ' << channel.second << '\n';
|
||||
break;
|
||||
case cUpdate:
|
||||
update(StringSet(args.begin(), args.end()));
|
||||
break;
|
||||
case cRollback:
|
||||
if (args.size() > 1)
|
||||
throw UsageError("'--rollback' has at most one argument");
|
||||
Strings envArgs{"--profile", profile};
|
||||
if (args.size() == 1) {
|
||||
envArgs.push_back("--switch-generation");
|
||||
envArgs.push_back(args[0]);
|
||||
} else {
|
||||
envArgs.push_back("--rollback");
|
||||
}
|
||||
runProgram(settings.nixBinDir + "/nix-env", false, envArgs);
|
||||
break;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static RegisterLegacyCommand s1("nix-channel", _main);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue