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Refactor settings processing

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Put all Nix configuration flags in a Settings object.
This commit is contained in:
Eelco Dolstra 2012-07-30 19:55:41 -04:00
parent d50d7a2874
commit 97421eb5ec
19 changed files with 596 additions and 552 deletions
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47
src/libmain/shared.cc
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@ -74,7 +74,7 @@ void printMissing(StoreAPI & store, const PathSet & paths)
if (!unknown.empty()) {
printMsg(lvlInfo, format("don't know how to build these paths%1%:")
% (readOnlyMode ? " (may be caused by read-only store access)" : ""));
% (settings.readOnlyMode ? " (may be caused by read-only store access)" : ""));
foreach (PathSet::iterator, i, unknown)
printMsg(lvlInfo, format(" %1%") % *i);
}
@ -93,11 +93,20 @@ static void setLogType(string lt)
static bool showTrace = false;
string getArg(const string & opt,
Strings::iterator & i, const Strings::iterator & end)
{
++i;
if (i == end) throw UsageError(format("`%1%' requires an argument") % opt);
return *i;
}
/* Initialize and reorder arguments, then call the actual argument
processor. */
static void initAndRun(int argc, char * * argv)
{
setDefaultsFromEnvironment();
settings.processEnvironment();
settings.loadConfFile();
/* Catch SIGINT. */
struct sigaction act;
@ -156,20 +165,19 @@ static void initAndRun(int argc, char * * argv)
remaining.clear();
/* Process default options. */
int verbosityDelta = 0;
int verbosityDelta = lvlInfo;
for (Strings::iterator i = args.begin(); i != args.end(); ++i) {
string arg = *i;
if (arg == "--verbose" || arg == "-v") verbosityDelta++;
else if (arg == "--quiet") verbosityDelta--;
else if (arg == "--log-type") {
++i;
if (i == args.end()) throw UsageError("`--log-type' requires an argument");
setLogType(*i);
string s = getArg(arg, i, args.end());
setLogType(s);
}
else if (arg == "--no-build-output" || arg == "-Q")
buildVerbosity = lvlVomit;
settings.buildVerbosity = lvlVomit;
else if (arg == "--print-build-trace")
printBuildTrace = true;
settings.printBuildTrace = true;
else if (arg == "--help") {
printHelp();
return;
@ -179,23 +187,23 @@ static void initAndRun(int argc, char * * argv)
return;
}
else if (arg == "--keep-failed" || arg == "-K")
keepFailed = true;
settings.keepFailed = true;
else if (arg == "--keep-going" || arg == "-k")
keepGoing = true;
settings.keepGoing = true;
else if (arg == "--fallback")
tryFallback = true;
settings.tryFallback = true;
else if (arg == "--max-jobs" || arg == "-j")
maxBuildJobs = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-max-jobs", getArg(arg, i, args.end()));
else if (arg == "--cores")
buildCores = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-cores", getArg(arg, i, args.end()));
else if (arg == "--readonly-mode")
readOnlyMode = true;
settings.readOnlyMode = true;
else if (arg == "--max-silent-time")
maxSilentTime = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-max-silent-time", getArg(arg, i, args.end()));
else if (arg == "--timeout")
buildTimeout = getIntArg<unsigned int>(arg, i, args.end());
settings.set("build-timeout", getArg(arg, i, args.end()));
else if (arg == "--no-build-hook")
useBuildHook = false;
settings.useBuildHook = false;
else if (arg == "--show-trace")
showTrace = true;
else if (arg == "--option") {
@ -203,14 +211,15 @@ static void initAndRun(int argc, char * * argv)
string name = *i;
++i; if (i == args.end()) throw UsageError("`--option' requires two arguments");
string value = *i;
overrideSetting(name, tokenizeString(value));
settings.set(name, value);
}
else remaining.push_back(arg);
}
verbosityDelta += queryIntSetting("verbosity", lvlInfo);
verbosity = (Verbosity) (verbosityDelta < 0 ? 0 : verbosityDelta);
settings.update();
run(remaining);
/* Close the Nix database. */