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Remove std::string alias (for real this time)

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Also use std::string_view in a few more places.
This commit is contained in:
Eelco Dolstra 2022-02-25 16:00:00 +01:00
parent 14b38d0887
commit df552ff53e
110 changed files with 773 additions and 681 deletions
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82
src/nix-env/nix-env.cc
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@ -46,7 +46,7 @@ struct InstallSourceInfo
InstallSourceType type;
Path nixExprPath; /* for srcNixExprDrvs, srcNixExprs */
Path profile; /* for srcProfile */
string systemFilter; /* for srcNixExprDrvs */
std::string systemFilter; /* for srcNixExprDrvs */
Bindings * autoArgs;
};
@ -59,7 +59,7 @@ struct Globals
bool dryRun;
bool preserveInstalled;
bool removeAll;
string forceName;
std::string forceName;
bool prebuiltOnly;
};
@ -68,8 +68,8 @@ typedef void (* Operation) (Globals & globals,
Strings opFlags, Strings opArgs);
static string needArg(Strings::iterator & i,
Strings & args, const string & arg)
static std::string needArg(Strings::iterator & i,
Strings & args, const std::string & arg)
{
if (i == args.end()) throw UsageError("'%1%' requires an argument", arg);
return *i++;
@ -77,7 +77,7 @@ static string needArg(Strings::iterator & i,
static bool parseInstallSourceOptions(Globals & globals,
Strings::iterator & i, Strings & args, const string & arg)
Strings::iterator & i, Strings & args, const std::string & arg)
{
if (arg == "--from-expression" || arg == "-E")
globals.instSource.type = srcNixExprs;
@ -124,9 +124,9 @@ static void getAllExprs(EvalState & state,
otherwise the attribute cannot be selected with the
`-A' option. Useful if you want to stick a Nix
expression directly in ~/.nix-defexpr. */
string attrName = i;
std::string attrName = i;
if (hasSuffix(attrName, ".nix"))
attrName = string(attrName, 0, attrName.size() - 4);
attrName = std::string(attrName, 0, attrName.size() - 4);
if (!seen.insert(attrName).second) {
printError("warning: name collision in input Nix expressions, skipping '%1%'", path2);
continue;
@ -175,8 +175,8 @@ static void loadSourceExpr(EvalState & state, const Path & path, Value & v)
static void loadDerivations(EvalState & state, Path nixExprPath,
string systemFilter, Bindings & autoArgs,
const string & pathPrefix, DrvInfos & elems)
std::string systemFilter, Bindings & autoArgs,
const std::string & pathPrefix, DrvInfos & elems)
{
Value vRoot;
loadSourceExpr(state, nixExprPath, vRoot);
@ -343,9 +343,9 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems,
if (selector.hits == 0 && selector.fullName != "*") {
const auto prefixHits = searchByPrefix(allElems, selector.name);
if (prefixHits.empty()) {
throw Error("selector '%1%' matches no derivations", selector.fullName);
throw Error("selector '%1%' matches no derivations", selector.fullName);
} else {
std::string suggestionMessage = ", maybe you meant:";
for (const auto & drvName : prefixHits) {
@ -360,9 +360,9 @@ static DrvInfos filterBySelector(EvalState & state, const DrvInfos & allElems,
}
static bool isPath(const string & s)
static bool isPath(std::string_view s)
{
return s.find('/') != string::npos;
return s.find('/') != std::string_view::npos;
}
@ -433,8 +433,8 @@ static void queryInstSources(EvalState & state,
auto outputs = state.store->queryDerivationOutputMap(path);
elem.setOutPath(state.store->printStorePath(outputs.at("out")));
if (name.size() >= drvExtension.size() &&
string(name, name.size() - drvExtension.size()) == drvExtension)
name = string(name, 0, name.size() - drvExtension.size());
std::string(name, name.size() - drvExtension.size()) == drvExtension)
name = name.substr(0, name.size() - drvExtension.size());
}
else elem.setOutPath(state.store->printStorePath(path));
@ -515,7 +515,7 @@ static void installDerivations(Globals & globals,
while (true) {
string lockToken = optimisticLockProfile(profile);
auto lockToken = optimisticLockProfile(profile);
DrvInfos allElems(newElems);
@ -551,7 +551,7 @@ static void installDerivations(Globals & globals,
static void opInstall(Globals & globals, Strings opFlags, Strings opArgs)
{
for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
string arg = *i++;
auto arg = *i++;
if (parseInstallSourceOptions(globals, i, opFlags, arg)) ;
else if (arg == "--preserve-installed" || arg == "-P")
globals.preserveInstalled = true;
@ -578,7 +578,7 @@ static void upgradeDerivations(Globals & globals,
name and a higher version number. */
while (true) {
string lockToken = optimisticLockProfile(globals.profile);
auto lockToken = optimisticLockProfile(globals.profile);
DrvInfos installedElems = queryInstalled(*globals.state, globals.profile);
@ -606,7 +606,7 @@ static void upgradeDerivations(Globals & globals,
take the one with the highest version.
Do not upgrade if it would decrease the priority. */
DrvInfos::iterator bestElem = availElems.end();
string bestVersion;
std::string bestVersion;
for (auto j = availElems.begin(); j != availElems.end(); ++j) {
if (comparePriorities(*globals.state, i, *j) > 0)
continue;
@ -662,7 +662,7 @@ static void opUpgrade(Globals & globals, Strings opFlags, Strings opArgs)
{
UpgradeType upgradeType = utLt;
for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
string arg = *i++;
std::string arg = *i++;
if (parseInstallSourceOptions(globals, i, opFlags, arg)) ;
else if (arg == "--lt") upgradeType = utLt;
else if (arg == "--leq") upgradeType = utLeq;
@ -676,7 +676,7 @@ static void opUpgrade(Globals & globals, Strings opFlags, Strings opArgs)
static void setMetaFlag(EvalState & state, DrvInfo & drv,
const string & name, const string & value)
const std::string & name, const std::string & value)
{
auto v = state.allocValue();
v->mkString(value);
@ -692,12 +692,12 @@ static void opSetFlag(Globals & globals, Strings opFlags, Strings opArgs)
throw UsageError("not enough arguments to '--set-flag'");
Strings::iterator arg = opArgs.begin();
string flagName = *arg++;
string flagValue = *arg++;
std::string flagName = *arg++;
std::string flagValue = *arg++;
DrvNames selectors = drvNamesFromArgs(Strings(arg, opArgs.end()));
while (true) {
string lockToken = optimisticLockProfile(globals.profile);
std::string lockToken = optimisticLockProfile(globals.profile);
DrvInfos installedElems = queryInstalled(*globals.state, globals.profile);
@ -728,7 +728,7 @@ static void opSet(Globals & globals, Strings opFlags, Strings opArgs)
if (!store2) throw Error("--set is not supported for this Nix store");
for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
string arg = *i++;
std::string arg = *i++;
if (parseInstallSourceOptions(globals, i, opFlags, arg)) ;
else throw UsageError("unknown flag '%1%'", arg);
}
@ -769,7 +769,7 @@ static void uninstallDerivations(Globals & globals, Strings & selectors,
Path & profile)
{
while (true) {
string lockToken = optimisticLockProfile(profile);
auto lockToken = optimisticLockProfile(profile);
DrvInfos workingElems = queryInstalled(*globals.state, profile);
@ -855,11 +855,11 @@ void printTable(Table & table)
Strings::iterator j;
size_t column;
for (j = i.begin(), column = 0; j != i.end(); ++j, ++column) {
string s = *j;
std::string s = *j;
replace(s.begin(), s.end(), '\n', ' ');
cout << s;
if (column < nrColumns - 1)
cout << string(widths[column] - s.size() + 2, ' ');
cout << std::string(widths[column] - s.size() + 2, ' ');
}
cout << std::endl;
}
@ -876,7 +876,7 @@ void printTable(Table & table)
typedef enum { cvLess, cvEqual, cvGreater, cvUnavail } VersionDiff;
static VersionDiff compareVersionAgainstSet(
const DrvInfo & elem, const DrvInfos & elems, string & version)
const DrvInfo & elem, const DrvInfos & elems, std::string & version)
{
DrvName name(elem.queryName());
@ -958,7 +958,7 @@ static void queryJSON(Globals & globals, std::vector<DrvInfo> & elems, bool prin
static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
{
Strings remaining;
string attrPath;
std::string attrPath;
bool printStatus = false;
bool printName = true;
@ -977,7 +977,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
settings.readOnlyMode = true; /* makes evaluation a bit faster */
for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
string arg = *i++;
auto arg = *i++;
if (arg == "--status" || arg == "-s") printStatus = true;
else if (arg == "--no-name") printName = false;
else if (arg == "--system") printSystem = true;
@ -1094,7 +1094,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
attrs["substitutable"] = hasSubs ? "1" : "0";
} else
columns.push_back(
(string) (isInstalled ? "I" : "-")
(std::string) (isInstalled ? "I" : "-")
+ (isValid ? "P" : "-")
+ (hasSubs ? "S" : "-"));
}
@ -1118,7 +1118,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
same named packages in either the set of available
elements, or the set of installed elements. !!!
This is O(N * M), should be O(N * lg M). */
string version;
std::string version;
VersionDiff diff = compareVersionAgainstSet(i, otherElems, version);
char ch;
@ -1136,7 +1136,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
attrs["maxComparedVersion"] = version;
}
} else {
string column = (string) "" + ch + " " + version;
auto column = (std::string) "" + ch + " " + version;
if (diff == cvGreater && tty)
column = ANSI_RED + column + ANSI_NORMAL;
columns.push_back(column);
@ -1150,7 +1150,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
columns.push_back(i.querySystem());
if (printDrvPath) {
string drvPath = i.queryDrvPath();
auto drvPath = i.queryDrvPath();
if (xmlOutput) {
if (drvPath != "") attrs["drvPath"] = drvPath;
} else
@ -1159,7 +1159,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
if (printOutPath && !xmlOutput) {
DrvInfo::Outputs outputs = i.queryOutputs();
string s;
std::string s;
for (auto & j : outputs) {
if (!s.empty()) s += ';';
if (j.first != "out") { s += j.first; s += "="; }
@ -1169,7 +1169,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
}
if (printDescription) {
string descr = i.queryMetaString("description");
auto descr = i.queryMetaString("description");
if (xmlOutput) {
if (descr != "") attrs["description"] = descr;
} else
@ -1331,12 +1331,12 @@ static void opDeleteGenerations(Globals & globals, Strings opFlags, Strings opAr
if (opArgs.size() == 1 && opArgs.front() == "old") {
deleteOldGenerations(globals.profile, globals.dryRun);
} else if (opArgs.size() == 1 && opArgs.front().find('d') != string::npos) {
} else if (opArgs.size() == 1 && opArgs.front().find('d') != std::string::npos) {
deleteGenerationsOlderThan(globals.profile, opArgs.front(), globals.dryRun);
} else if (opArgs.size() == 1 && opArgs.front().find('+') != string::npos) {
} else if (opArgs.size() == 1 && opArgs.front().find('+') != std::string::npos) {
if (opArgs.front().size() < 2)
throw Error("invalid number of generations '%1%'", opArgs.front());
string str_max = string(opArgs.front(), 1, opArgs.front().size());
auto str_max = opArgs.front().substr(1);
auto max = string2Int<GenerationNumber>(str_max);
if (!max || *max == 0)
throw Error("invalid number of generations to keep '%1%'", opArgs.front());
@ -1366,7 +1366,7 @@ static int main_nix_env(int argc, char * * argv)
Strings opFlags, opArgs;
Operation op = 0;
RepairFlag repair = NoRepair;
string file;
std::string file;
Globals globals;