* nix-env -qa: make the "-A" flag do the expected thing, namely follow
the given attribute path (just as -A does with other option) (NIX-83). So you can now say $ nix-env -qa -A nixpkgs_unstable.gnome \* atk-1.12.4 esound-0.2.36 ... to see the packages in the "gnome" attribute in Nixpkgs. To *print* the attribute path, you should now use "--attr-path" / "-P" (running out of letters...).
This commit is contained in:
Eelco Dolstra
parent
055608227f
commit
c8ea8a09b8
1 changed files with 103 additions and 78 deletions
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@ -65,7 +65,7 @@ struct Globals
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typedef void (* Operation) (Globals & globals,
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Strings opFlags, Strings opArgs);
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Strings args, Strings opFlags, Strings opArgs);
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void printHelp()
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@ -74,6 +74,31 @@ void printHelp()
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}
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static string needArg(Strings::iterator & i,
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Strings & args, const string & arg)
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{
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if (i == args.end()) throw UsageError(
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format("`%1%' requires an argument") % arg);
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return *i++;
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}
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static bool parseInstallSourceOptions(Globals & globals,
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Strings::iterator & i, Strings & args, const string & arg)
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{
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if (arg == "--from-expression" || arg == "-E")
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globals.instSource.type = srcNixExprs;
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else if (arg == "--from-profile") {
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globals.instSource.type = srcProfile;
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globals.instSource.profile = needArg(i, args, arg);
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}
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else if (arg == "--attr" || arg == "-A")
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globals.instSource.type = srcAttrPath;
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else return false;
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return true;
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}
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static bool isNixExpr(const Path & path)
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{
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struct stat st;
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@ -93,7 +118,7 @@ static void getAllExprs(EvalState & state,
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Path path2 = path + "/" + *i;
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if (isNixExpr(path2))
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attrs.set(toATerm(*i), makeAttrRHS(
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parseExprFromFile(state, absPath(path2)), makeNoPos()));
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parseExprFromFile(state, absPath(path2)), makeNoPos()));
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else
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getAllExprs(state, path2, attrs);
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}
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@ -118,9 +143,12 @@ static Expr loadSourceExpr(EvalState & state, const Path & path)
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static void loadDerivations(EvalState & state, Path nixExprPath,
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string systemFilter, const ATermMap & autoArgs, DrvInfos & elems)
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string systemFilter, const ATermMap & autoArgs,
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const string & pathPrefix, DrvInfos & elems)
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{
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getDerivations(state, loadSourceExpr(state, nixExprPath), "", autoArgs, elems);
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getDerivations(state,
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findAlongAttrPath(state, pathPrefix, autoArgs, loadSourceExpr(state, nixExprPath)),
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pathPrefix, autoArgs, elems);
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/* Filter out all derivations not applicable to the current
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system. */
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@ -394,7 +422,7 @@ static void queryInstSources(EvalState & state,
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Nix expression. */
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DrvInfos allElems;
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loadDerivations(state, instSource.nixExprPath,
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instSource.systemFilter, instSource.autoArgs, allElems);
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instSource.systemFilter, instSource.autoArgs, "", allElems);
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elems = filterBySelector(state, allElems, args, newestOnly);
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@ -570,10 +598,15 @@ static void installDerivations(Globals & globals,
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static void opInstall(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
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string arg = *i++;
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if (parseInstallSourceOptions(globals, i, opFlags, arg)) ;
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else if (arg == "--preserve-installed" || arg == "-P")
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globals.preserveInstalled = true;
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else throw UsageError(format("unknown flag `%1%'") % arg);
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}
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installDerivations(globals, opArgs, globals.profile);
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}
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@ -668,16 +701,18 @@ static void upgradeDerivations(Globals & globals,
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static void opUpgrade(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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UpgradeType upgradeType = utLt;
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for (Strings::iterator i = opFlags.begin();
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i != opFlags.end(); ++i)
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if (*i == "--lt") upgradeType = utLt;
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else if (*i == "--leq") upgradeType = utLeq;
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else if (*i == "--eq") upgradeType = utEq;
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else if (*i == "--always") upgradeType = utAlways;
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else throw UsageError(format("unknown flag `%1%'") % *i);
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for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
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string arg = *i++;
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if (parseInstallSourceOptions(globals, i, opFlags, arg)) ;
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else if (arg == "--lt") upgradeType = utLt;
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else if (arg == "--leq") upgradeType = utLeq;
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else if (arg == "--eq") upgradeType = utEq;
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else if (arg == "--always") upgradeType = utAlways;
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else throw UsageError(format("unknown flag `%1%'") % arg);
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}
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upgradeDerivations(globals, opArgs, upgradeType);
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}
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@ -693,7 +728,7 @@ static void setMetaFlag(EvalState & state, DrvInfo & drv,
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static void opSetFlag(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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@ -732,10 +767,13 @@ static void opSetFlag(Globals & globals,
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static void opSet(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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for (Strings::iterator i = opFlags.begin(); i != opFlags.end(); ) {
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string arg = *i++;
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if (parseInstallSourceOptions(globals, i, opFlags, arg)) ;
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else throw UsageError(format("unknown flag `%1%'") % arg);
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}
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DrvInfos elems;
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queryInstSources(globals.state, globals.instSource, opArgs, elems, true);
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@ -788,7 +826,7 @@ static void uninstallDerivations(Globals & globals, DrvNames & selectors,
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static void opUninstall(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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@ -895,9 +933,11 @@ static string colorString(const string & s)
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static void opQuery(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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typedef vector< map<string, string> > ResultSet;
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Strings remaining;
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string attrPath;
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bool printStatus = false;
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bool printName = true;
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@ -915,45 +955,46 @@ static void opQuery(Globals & globals,
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readOnlyMode = true; /* makes evaluation a bit faster */
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for (Strings::iterator i = opFlags.begin();
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i != opFlags.end(); ++i)
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if (*i == "--status" || *i == "-s") printStatus = true;
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else if (*i == "--no-name") printName = false;
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else if (*i == "--system") printSystem = true;
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else if (*i == "--description") printDescription = true;
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else if (*i == "--compare-versions" || *i == "-c") compareVersions = true;
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else if (*i == "--drv-path") printDrvPath = true;
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else if (*i == "--out-path") printOutPath = true;
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else if (*i == "--meta") printMeta = true;
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else if (*i == "--installed") source = sInstalled;
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else if (*i == "--available" || *i == "-a") source = sAvailable;
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else if (*i == "--prebuilt-only" || *i == "-b") prebuiltOnly = true;
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else if (*i == "--xml") xmlOutput = true;
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else throw UsageError(format("unknown flag `%1%'") % *i);
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if (globals.instSource.type == srcAttrPath) printAttrPath = true; /* hack */
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if (opArgs.size() == 0) {
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printMsg(lvlInfo, "warning: you probably meant to specify the argument '*' to show all packages");
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for (Strings::iterator i = args.begin(); i != args.end(); ) {
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string arg = *i++;
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if (arg == "--status" || arg == "-s") printStatus = true;
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else if (arg == "--no-name") printName = false;
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else if (arg == "--system") printSystem = true;
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else if (arg == "--description") printDescription = true;
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else if (arg == "--compare-versions" || arg == "-c") compareVersions = true;
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else if (arg == "--drv-path") printDrvPath = true;
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else if (arg == "--out-path") printOutPath = true;
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else if (arg == "--meta") printMeta = true;
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else if (arg == "--installed") source = sInstalled;
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else if (arg == "--available" || arg == "-a") source = sAvailable;
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else if (arg == "--prebuilt-only" || arg == "-b") prebuiltOnly = true;
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else if (arg == "--xml") xmlOutput = true;
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else if (arg == "--attr-path" || arg == "-P") printAttrPath = true;
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else if (arg == "--attr" || arg == "-A")
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attrPath = needArg(i, args, arg);
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else if (arg[0] == '-')
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throw UsageError(format("unknown flag `%1%'") % arg);
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else remaining.push_back(arg);
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}
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if (remaining.size() == 0)
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printMsg(lvlInfo, "warning: you probably meant to specify the argument '*' to show all packages");
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/* Obtain derivation information from the specified source. */
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DrvInfos availElems, installedElems;
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if (source == sInstalled || compareVersions || printStatus) {
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if (source == sInstalled || compareVersions || printStatus)
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installedElems = queryInstalled(globals.state, globals.profile);
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}
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if (source == sAvailable || compareVersions) {
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if (source == sAvailable || compareVersions)
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loadDerivations(globals.state, globals.instSource.nixExprPath,
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globals.instSource.systemFilter, globals.instSource.autoArgs,
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availElems);
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}
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attrPath, availElems);
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DrvInfos elems = filterBySelector(globals.state,
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source == sInstalled ? installedElems : availElems,
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opArgs, false);
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remaining, false);
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DrvInfos & otherElems(source == sInstalled ? availElems : installedElems);
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@ -1113,7 +1154,7 @@ static void opQuery(Globals & globals,
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static void opSwitchProfile(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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@ -1161,7 +1202,7 @@ static void switchGeneration(Globals & globals, int dstGen)
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static void opSwitchGeneration(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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@ -1177,7 +1218,7 @@ static void opSwitchGeneration(Globals & globals,
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static void opRollback(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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@ -1189,7 +1230,7 @@ static void opRollback(Globals & globals,
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static void opListGenerations(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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@ -1222,7 +1263,7 @@ static void deleteGeneration2(const Path & profile, unsigned int gen)
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static void opDeleteGenerations(Globals & globals,
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Strings opFlags, Strings opArgs)
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Strings args, Strings opFlags, Strings opArgs)
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{
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if (opFlags.size() > 0)
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throw UsageError(format("unknown flag `%1%'") % opFlags.front());
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@ -1260,18 +1301,9 @@ static void opDeleteGenerations(Globals & globals,
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}
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static string needArg(Strings::iterator & i,
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Strings & args, const string & arg)
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{
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if (i == args.end()) throw UsageError(
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format("`%1%' requires an argument") % arg);
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return *i++;
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}
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void run(Strings args)
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{
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Strings opFlags, opArgs;
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Strings opFlags, opArgs, remaining;
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Operation op = 0;
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Globals globals;
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@ -1293,14 +1325,6 @@ void run(Strings args)
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if (arg == "--install" || arg == "-i")
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op = opInstall;
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else if (arg == "--from-expression" || arg == "-E")
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globals.instSource.type = srcNixExprs;
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else if (arg == "--from-profile") {
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globals.instSource.type = srcProfile;
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globals.instSource.profile = needArg(i, args, arg);
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}
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else if (arg == "--attr" || arg == "-A")
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globals.instSource.type = srcAttrPath;
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else if (parseOptionArg(arg, i, args.end(),
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globals.state, globals.instSource.autoArgs))
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;
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@ -1334,14 +1358,15 @@ void run(Strings args)
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printMsg(lvlInfo, "(dry run; not doing anything)");
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globals.dryRun = true;
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}
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else if (arg == "--preserve-installed" || arg == "-P")
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globals.preserveInstalled = true;
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else if (arg == "--system-filter")
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globals.instSource.systemFilter = needArg(i, args, arg);
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else if (arg[0] == '-')
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opFlags.push_back(arg);
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else
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opArgs.push_back(arg);
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else {
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remaining.push_back(arg);
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if (arg[0] == '-')
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opFlags.push_back(arg);
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else
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opArgs.push_back(arg);
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}
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if (oldOp && oldOp != op)
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throw UsageError("only one operation may be specified");
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@ -1358,7 +1383,7 @@ void run(Strings args)
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store = openStore();
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op(globals, opFlags, opArgs);
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op(globals, remaining, opFlags, opArgs);
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printEvalStats(globals.state);
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}
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