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Merge remote-tracking branch 'origin/master' into lazy-trees

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This commit is contained in:
Eelco Dolstra 2022-05-09 11:26:39 +02:00
commit 30ca717558
175 changed files with 4032 additions and 1936 deletions
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46
src/libutil/util.cc
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@ -71,13 +71,11 @@ void clearEnv()
unsetenv(name.first.c_str());
}
void replaceEnv(std::map<std::string, std::string> newEnv)
void replaceEnv(const std::map<std::string, std::string> & newEnv)
{
clearEnv();
for (auto newEnvVar : newEnv)
{
for (auto & newEnvVar : newEnv)
setenv(newEnvVar.first.c_str(), newEnvVar.second.c_str(), 1);
}
}
@ -200,6 +198,17 @@ std::string_view baseNameOf(std::string_view path)
}
std::string expandTilde(std::string_view path)
{
// TODO: expand ~user ?
auto tilde = path.substr(0, 2);
if (tilde == "~/" || tilde == "~")
return getHome() + std::string(path.substr(1));
else
return std::string(path);
}
bool isInDir(std::string_view path, std::string_view dir)
{
return path.substr(0, 1) == "/"
@ -215,6 +224,15 @@ bool isDirOrInDir(std::string_view path, std::string_view dir)
}
struct stat stat(const Path & path)
{
struct stat st;
if (stat(path.c_str(), &st))
throw SysError("getting status of '%1%'", path);
return st;
}
struct stat lstat(const Path & path)
{
struct stat st;
@ -1064,7 +1082,7 @@ std::string runProgram(Path program, bool searchPath, const Strings & args,
auto res = runProgram(RunOptions {.program = program, .searchPath = searchPath, .args = args, .input = input});
if (!statusOk(res.first))
throw ExecError(res.first, fmt("program '%1%' %2%", program, statusToString(res.first)));
throw ExecError(res.first, "program '%1%' %2%", program, statusToString(res.first));
return res.second;
}
@ -1192,7 +1210,7 @@ void runProgram2(const RunOptions & options)
if (source) promise.get_future().get();
if (status)
throw ExecError(status, fmt("program '%1%' %2%", options.program, statusToString(status)));
throw ExecError(status, "program '%1%' %2%", options.program, statusToString(status));
}
@ -1261,9 +1279,9 @@ template<class C> C tokenizeString(std::string_view s, std::string_view separato
{
C result;
auto pos = s.find_first_not_of(separators, 0);
while (pos != std::string::npos) {
while (pos != std::string_view::npos) {
auto end = s.find_first_of(separators, pos + 1);
if (end == std::string::npos) end = s.size();
if (end == std::string_view::npos) end = s.size();
result.insert(result.end(), std::string(s, pos, end - pos));
pos = s.find_first_not_of(separators, end);
}
@ -1473,6 +1491,7 @@ constexpr char base64Chars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuv
std::string base64Encode(std::string_view s)
{
std::string res;
res.reserve((s.size() + 2) / 3 * 4);
int data = 0, nbits = 0;
for (char c : s) {
@ -1504,6 +1523,9 @@ std::string base64Decode(std::string_view s)
}();
std::string res;
// Some sequences are missing the padding consisting of up to two '='.
// vvv
res.reserve((s.size() + 2) / 4 * 3);
unsigned int d = 0, bits = 0;
for (char c : s) {
@ -1581,7 +1603,6 @@ std::pair<std::string_view, std::string_view> getLine(std::string_view s)
//////////////////////////////////////////////////////////////////////
static Sync<std::pair<unsigned short, unsigned short>> windowSize{{0, 0}};
@ -1705,7 +1726,9 @@ void setStackSize(size_t stackSize)
#endif
}
#if __linux__
static AutoCloseFD fdSavedMountNamespace;
#endif
void saveMountNamespace()
{
@ -1724,8 +1747,13 @@ void restoreMountNamespace()
{
#if __linux__
try {
auto savedCwd = absPath(".");
if (fdSavedMountNamespace && setns(fdSavedMountNamespace.get(), CLONE_NEWNS) == -1)
throw SysError("restoring parent mount namespace");
if (chdir(savedCwd.c_str()) == -1) {
throw SysError("restoring cwd");
}
} catch (Error & e) {
debug(e.msg());
}