394 lines
14 KiB
C++
394 lines
14 KiB
C++
#include "primops.hh"
|
||
#include "eval-inline.hh"
|
||
#include "store-api.hh"
|
||
#include "fetchers.hh"
|
||
#include "url.hh"
|
||
|
||
#include <regex>
|
||
|
||
namespace nix {
|
||
|
||
<<<<<<< HEAD
|
||
struct HgInfo
|
||
{
|
||
Path storePath;
|
||
std::string branch;
|
||
std::string rev;
|
||
uint64_t revCount = 0;
|
||
};
|
||
|
||
std::regex commitHashRegex("^[0-9a-fA-F]{40}$");
|
||
|
||
HgInfo exportMercurial(ref<Store> store, const std::string & uri,
|
||
std::string rev, const std::string & name)
|
||
{
|
||
if (evalSettings.pureEval && rev == "")
|
||
throw Error("in pure evaluation mode, 'fetchMercurial' requires a Mercurial revision");
|
||
|
||
if (rev == "" && hasPrefix(uri, "/") && pathExists(uri + "/.hg")) {
|
||
|
||
bool clean = runProgram("hg", true, { "status", "-R", uri, "--modified", "--added", "--removed" }) == "";
|
||
|
||
if (!clean) {
|
||
|
||
/* This is an unclean working tree. So copy all tracked
|
||
files. */
|
||
|
||
printTalkative("copying unclean Mercurial working tree '%s'", uri);
|
||
|
||
HgInfo hgInfo;
|
||
hgInfo.rev = "0000000000000000000000000000000000000000";
|
||
hgInfo.branch = chomp(runProgram("hg", true, { "branch", "-R", uri }));
|
||
|
||
auto files = tokenizeString<std::set<std::string>>(
|
||
runProgram("hg", true, { "status", "-R", uri, "--clean", "--modified", "--added", "--no-status", "--print0" }), "\0"s);
|
||
|
||
PathFilter filter = [&](const Path & p) -> bool {
|
||
assert(hasPrefix(p, uri));
|
||
std::string file(p, uri.size() + 1);
|
||
|
||
auto st = lstat(p);
|
||
|
||
if (S_ISDIR(st.st_mode)) {
|
||
auto prefix = file + "/";
|
||
auto i = files.lower_bound(prefix);
|
||
return i != files.end() && hasPrefix(*i, prefix);
|
||
}
|
||
|
||
return files.count(file);
|
||
};
|
||
|
||
hgInfo.storePath = store->printStorePath(store->addToStore("source", uri, true, HashType::SHA256, filter));
|
||
|
||
return hgInfo;
|
||
}
|
||
}
|
||
|
||
if (rev == "") rev = "default";
|
||
|
||
Path cacheDir = fmt("%s/nix/hg/%s", getCacheDir(), hashString(HashType::SHA256, uri).to_string(Base::Base32, false));
|
||
|
||
Path stampFile = fmt("%s/.hg/%s.stamp", cacheDir, hashString(HashType::SHA512, rev).to_string(Base::Base32, false));
|
||
|
||
/* If we haven't pulled this repo less than ‘tarball-ttl’ seconds,
|
||
do so now. */
|
||
time_t now = time(0);
|
||
struct stat st;
|
||
if (stat(stampFile.c_str(), &st) != 0 ||
|
||
(uint64_t) st.st_mtime + settings.tarballTtl <= (uint64_t) now)
|
||
{
|
||
/* Except that if this is a commit hash that we already have,
|
||
we don't have to pull again. */
|
||
if (!(std::regex_match(rev, commitHashRegex)
|
||
&& pathExists(cacheDir)
|
||
&& runProgram(
|
||
RunOptions("hg", { "log", "-R", cacheDir, "-r", rev, "--template", "1" })
|
||
.killStderr(true)).second == "1"))
|
||
{
|
||
Activity act(*logger, Verbosity::Talkative, ActivityType::Unknown, fmt("fetching Mercurial repository '%s'", uri));
|
||
|
||
if (pathExists(cacheDir)) {
|
||
try {
|
||
runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri });
|
||
}
|
||
catch (ExecError & e) {
|
||
string transJournal = cacheDir + "/.hg/store/journal";
|
||
/* hg throws "abandoned transaction" error only if this file exists */
|
||
if (pathExists(transJournal)) {
|
||
runProgram("hg", true, { "recover", "-R", cacheDir });
|
||
runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri });
|
||
} else {
|
||
throw ExecError(e.status, fmt("'hg pull' %s", statusToString(e.status)));
|
||
}
|
||
}
|
||
} else {
|
||
createDirs(dirOf(cacheDir));
|
||
runProgram("hg", true, { "clone", "--noupdate", "--", uri, cacheDir });
|
||
}
|
||
}
|
||
|
||
writeFile(stampFile, "");
|
||
}
|
||
|
||
auto tokens = tokenizeString<std::vector<std::string>>(
|
||
runProgram("hg", true, { "log", "-R", cacheDir, "-r", rev, "--template", "{node} {rev} {branch}" }));
|
||
assert(tokens.size() == 3);
|
||
|
||
HgInfo hgInfo;
|
||
hgInfo.rev = tokens[0];
|
||
hgInfo.revCount = std::stoull(tokens[1]);
|
||
hgInfo.branch = tokens[2];
|
||
|
||
std::string storeLinkName = hashString(HashType::SHA512, name + std::string("\0"s) + hgInfo.rev).to_string(Base::Base32, false);
|
||
Path storeLink = fmt("%s/.hg/%s.link", cacheDir, storeLinkName);
|
||
|
||
try {
|
||
auto json = nlohmann::json::parse(readFile(storeLink));
|
||
|
||
assert(json["name"] == name && json["rev"] == hgInfo.rev);
|
||
|
||
hgInfo.storePath = json["storePath"];
|
||
|
||
if (store->isValidPath(store->parseStorePath(hgInfo.storePath))) {
|
||
printTalkative("using cached Mercurial store path '%s'", hgInfo.storePath);
|
||
return hgInfo;
|
||
}
|
||
|
||
} catch (SysError & e) {
|
||
if (e.errNo != ENOENT) throw;
|
||
}
|
||
|
||
Path tmpDir = createTempDir();
|
||
AutoDelete delTmpDir(tmpDir, true);
|
||
|
||
runProgram("hg", true, { "archive", "-R", cacheDir, "-r", rev, tmpDir });
|
||
|
||
deletePath(tmpDir + "/.hg_archival.txt");
|
||
|
||
hgInfo.storePath = store->printStorePath(store->addToStore(name, tmpDir));
|
||
|
||
nlohmann::json json;
|
||
json["storePath"] = hgInfo.storePath;
|
||
json["uri"] = uri;
|
||
json["name"] = name;
|
||
json["branch"] = hgInfo.branch;
|
||
json["rev"] = hgInfo.rev;
|
||
json["revCount"] = hgInfo.revCount;
|
||
|
||
writeFile(storeLink, json.dump());
|
||
|
||
return hgInfo;
|
||
}
|
||
|
||
||||||| merged common ancestors
|
||
struct HgInfo
|
||
{
|
||
Path storePath;
|
||
std::string branch;
|
||
std::string rev;
|
||
uint64_t revCount = 0;
|
||
};
|
||
|
||
std::regex commitHashRegex("^[0-9a-fA-F]{40}$");
|
||
|
||
HgInfo exportMercurial(ref<Store> store, const std::string & uri,
|
||
std::string rev, const std::string & name)
|
||
{
|
||
if (evalSettings.pureEval && rev == "")
|
||
throw Error("in pure evaluation mode, 'fetchMercurial' requires a Mercurial revision");
|
||
|
||
if (rev == "" && hasPrefix(uri, "/") && pathExists(uri + "/.hg")) {
|
||
|
||
bool clean = runProgram("hg", true, { "status", "-R", uri, "--modified", "--added", "--removed" }) == "";
|
||
|
||
if (!clean) {
|
||
|
||
/* This is an unclean working tree. So copy all tracked
|
||
files. */
|
||
|
||
printTalkative("copying unclean Mercurial working tree '%s'", uri);
|
||
|
||
HgInfo hgInfo;
|
||
hgInfo.rev = "0000000000000000000000000000000000000000";
|
||
hgInfo.branch = chomp(runProgram("hg", true, { "branch", "-R", uri }));
|
||
|
||
auto files = tokenizeString<std::set<std::string>>(
|
||
runProgram("hg", true, { "status", "-R", uri, "--clean", "--modified", "--added", "--no-status", "--print0" }), "\0"s);
|
||
|
||
PathFilter filter = [&](const Path & p) -> bool {
|
||
assert(hasPrefix(p, uri));
|
||
std::string file(p, uri.size() + 1);
|
||
|
||
auto st = lstat(p);
|
||
|
||
if (S_ISDIR(st.st_mode)) {
|
||
auto prefix = file + "/";
|
||
auto i = files.lower_bound(prefix);
|
||
return i != files.end() && hasPrefix(*i, prefix);
|
||
}
|
||
|
||
return files.count(file);
|
||
};
|
||
|
||
hgInfo.storePath = store->printStorePath(store->addToStore("source", uri, true, htSHA256, filter));
|
||
|
||
return hgInfo;
|
||
}
|
||
}
|
||
|
||
if (rev == "") rev = "default";
|
||
|
||
Path cacheDir = fmt("%s/nix/hg/%s", getCacheDir(), hashString(htSHA256, uri).to_string(Base32, false));
|
||
|
||
Path stampFile = fmt("%s/.hg/%s.stamp", cacheDir, hashString(htSHA512, rev).to_string(Base32, false));
|
||
|
||
/* If we haven't pulled this repo less than ‘tarball-ttl’ seconds,
|
||
do so now. */
|
||
time_t now = time(0);
|
||
struct stat st;
|
||
if (stat(stampFile.c_str(), &st) != 0 ||
|
||
(uint64_t) st.st_mtime + settings.tarballTtl <= (uint64_t) now)
|
||
{
|
||
/* Except that if this is a commit hash that we already have,
|
||
we don't have to pull again. */
|
||
if (!(std::regex_match(rev, commitHashRegex)
|
||
&& pathExists(cacheDir)
|
||
&& runProgram(
|
||
RunOptions("hg", { "log", "-R", cacheDir, "-r", rev, "--template", "1" })
|
||
.killStderr(true)).second == "1"))
|
||
{
|
||
Activity act(*logger, lvlTalkative, actUnknown, fmt("fetching Mercurial repository '%s'", uri));
|
||
|
||
if (pathExists(cacheDir)) {
|
||
try {
|
||
runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri });
|
||
}
|
||
catch (ExecError & e) {
|
||
string transJournal = cacheDir + "/.hg/store/journal";
|
||
/* hg throws "abandoned transaction" error only if this file exists */
|
||
if (pathExists(transJournal)) {
|
||
runProgram("hg", true, { "recover", "-R", cacheDir });
|
||
runProgram("hg", true, { "pull", "-R", cacheDir, "--", uri });
|
||
} else {
|
||
throw ExecError(e.status, fmt("'hg pull' %s", statusToString(e.status)));
|
||
}
|
||
}
|
||
} else {
|
||
createDirs(dirOf(cacheDir));
|
||
runProgram("hg", true, { "clone", "--noupdate", "--", uri, cacheDir });
|
||
}
|
||
}
|
||
|
||
writeFile(stampFile, "");
|
||
}
|
||
|
||
auto tokens = tokenizeString<std::vector<std::string>>(
|
||
runProgram("hg", true, { "log", "-R", cacheDir, "-r", rev, "--template", "{node} {rev} {branch}" }));
|
||
assert(tokens.size() == 3);
|
||
|
||
HgInfo hgInfo;
|
||
hgInfo.rev = tokens[0];
|
||
hgInfo.revCount = std::stoull(tokens[1]);
|
||
hgInfo.branch = tokens[2];
|
||
|
||
std::string storeLinkName = hashString(htSHA512, name + std::string("\0"s) + hgInfo.rev).to_string(Base32, false);
|
||
Path storeLink = fmt("%s/.hg/%s.link", cacheDir, storeLinkName);
|
||
|
||
try {
|
||
auto json = nlohmann::json::parse(readFile(storeLink));
|
||
|
||
assert(json["name"] == name && json["rev"] == hgInfo.rev);
|
||
|
||
hgInfo.storePath = json["storePath"];
|
||
|
||
if (store->isValidPath(store->parseStorePath(hgInfo.storePath))) {
|
||
printTalkative("using cached Mercurial store path '%s'", hgInfo.storePath);
|
||
return hgInfo;
|
||
}
|
||
|
||
} catch (SysError & e) {
|
||
if (e.errNo != ENOENT) throw;
|
||
}
|
||
|
||
Path tmpDir = createTempDir();
|
||
AutoDelete delTmpDir(tmpDir, true);
|
||
|
||
runProgram("hg", true, { "archive", "-R", cacheDir, "-r", rev, tmpDir });
|
||
|
||
deletePath(tmpDir + "/.hg_archival.txt");
|
||
|
||
hgInfo.storePath = store->printStorePath(store->addToStore(name, tmpDir));
|
||
|
||
nlohmann::json json;
|
||
json["storePath"] = hgInfo.storePath;
|
||
json["uri"] = uri;
|
||
json["name"] = name;
|
||
json["branch"] = hgInfo.branch;
|
||
json["rev"] = hgInfo.rev;
|
||
json["revCount"] = hgInfo.revCount;
|
||
|
||
writeFile(storeLink, json.dump());
|
||
|
||
return hgInfo;
|
||
}
|
||
|
||
=======
|
||
>>>>>>> f60ce4fa207a210e23a1142d3a8ead611526e6e1
|
||
static void prim_fetchMercurial(EvalState & state, const Pos & pos, Value * * args, Value & v)
|
||
{
|
||
std::string url;
|
||
std::optional<Hash> rev;
|
||
std::optional<std::string> ref;
|
||
std::string name = "source";
|
||
PathSet context;
|
||
|
||
state.forceValue(*args[0]);
|
||
|
||
if (args[0]->type == tAttrs) {
|
||
|
||
state.forceAttrs(*args[0], pos);
|
||
|
||
for (auto & attr : *args[0]->attrs) {
|
||
string n(attr.name);
|
||
if (n == "url")
|
||
url = state.coerceToString(*attr.pos, *attr.value, context, false, false);
|
||
else if (n == "rev") {
|
||
// Ugly: unlike fetchGit, here the "rev" attribute can
|
||
// be both a revision or a branch/tag name.
|
||
auto value = state.forceStringNoCtx(*attr.value, *attr.pos);
|
||
if (std::regex_match(value, revRegex))
|
||
rev = Hash(value, htSHA1);
|
||
else
|
||
ref = value;
|
||
}
|
||
else if (n == "name")
|
||
name = state.forceStringNoCtx(*attr.value, *attr.pos);
|
||
else
|
||
throw EvalError("unsupported argument '%s' to 'fetchMercurial', at %s", attr.name, *attr.pos);
|
||
}
|
||
|
||
if (url.empty())
|
||
throw EvalError(format("'url' argument required, at %1%") % pos);
|
||
|
||
} else
|
||
url = state.coerceToString(pos, *args[0], context, false, false);
|
||
|
||
// FIXME: git externals probably can be used to bypass the URI
|
||
// whitelist. Ah well.
|
||
state.checkURI(url);
|
||
|
||
if (evalSettings.pureEval && !rev)
|
||
throw Error("in pure evaluation mode, 'fetchMercurial' requires a Mercurial revision");
|
||
|
||
fetchers::Attrs attrs;
|
||
attrs.insert_or_assign("type", "hg");
|
||
attrs.insert_or_assign("url", url.find("://") != std::string::npos ? url : "file://" + url);
|
||
if (ref) attrs.insert_or_assign("ref", *ref);
|
||
if (rev) attrs.insert_or_assign("rev", rev->gitRev());
|
||
auto input = fetchers::inputFromAttrs(attrs);
|
||
|
||
// FIXME: use name
|
||
auto [tree, input2] = input->fetchTree(state.store);
|
||
|
||
state.mkAttrs(v, 8);
|
||
auto storePath = state.store->printStorePath(tree.storePath);
|
||
mkString(*state.allocAttr(v, state.sOutPath), storePath, PathSet({storePath}));
|
||
if (input2->getRef())
|
||
mkString(*state.allocAttr(v, state.symbols.create("branch")), *input2->getRef());
|
||
// Backward compatibility: set 'rev' to
|
||
// 0000000000000000000000000000000000000000 for a dirty tree.
|
||
auto rev2 = input2->getRev().value_or(Hash(htSHA1));
|
||
mkString(*state.allocAttr(v, state.symbols.create("rev")), rev2.gitRev());
|
||
mkString(*state.allocAttr(v, state.symbols.create("shortRev")), std::string(rev2.gitRev(), 0, 12));
|
||
if (tree.info.revCount)
|
||
mkInt(*state.allocAttr(v, state.symbols.create("revCount")), *tree.info.revCount);
|
||
v.attrs->sort();
|
||
|
||
if (state.allowedPaths)
|
||
state.allowedPaths->insert(tree.actualPath);
|
||
}
|
||
|
||
static RegisterPrimOp r("fetchMercurial", 1, prim_fetchMercurial);
|
||
|
||
}
|