diff options
Diffstat (limited to 'src/nix-env')
| -rw-r--r-- | src/nix-env/main.cc | 330 | ||||
| -rw-r--r-- | src/nix-env/profiles.cc | 2 | ||||
| -rw-r--r-- | src/nix-env/profiles.hh | 2 |
3 files changed, 171 insertions, 163 deletions
diff --git a/src/nix-env/main.cc b/src/nix-env/main.cc index fa07135fc09e..a9125001226f 100644 --- a/src/nix-env/main.cc +++ b/src/nix-env/main.cc @@ -45,7 +45,7 @@ typedef void (* Operation) (Globals & globals, Strings opFlags, Strings opArgs); -struct DrvInfo +struct UserEnvElem { string name; string system; @@ -53,8 +53,7 @@ struct DrvInfo Path outPath; }; -typedef map<Path, DrvInfo> DrvInfos; -typedef vector<DrvInfo> DrvInfoList; +typedef map<Path, UserEnvElem> UserEnvElems; void printHelp() @@ -63,7 +62,7 @@ void printHelp() } -bool parseDerivation(EvalState & state, Expr e, DrvInfo & drv) +static bool parseDerivation(EvalState & state, Expr e, UserEnvElem & elem) { ATermList es; e = evalExpr(state, e); @@ -73,54 +72,54 @@ bool parseDerivation(EvalState & state, Expr e, DrvInfo & drv) a = queryAttr(e, "name"); if (!a) throw badTerm("derivation name missing", e); - drv.name = evalString(state, a); + elem.name = evalString(state, a); a = queryAttr(e, "system"); if (!a) - drv.system = "unknown"; + elem.system = "unknown"; else - drv.system = evalString(state, a); + elem.system = evalString(state, a); a = queryAttr(e, "drvPath"); - if (a) drv.drvPath = evalPath(state, a); + if (a) elem.drvPath = evalPath(state, a); a = queryAttr(e, "outPath"); if (!a) throw badTerm("output path missing", e); - drv.outPath = evalPath(state, a); + elem.outPath = evalPath(state, a); return true; } -bool parseDerivations(EvalState & state, Expr e, DrvInfos & drvs) +static bool parseDerivations(EvalState & state, Expr e, UserEnvElems & elems) { ATermList es; - DrvInfo drv; + UserEnvElem elem; e = evalExpr(state, e); - if (parseDerivation(state, e, drv)) - drvs[drv.outPath] = drv; + if (parseDerivation(state, e, elem)) + elems[elem.outPath] = elem; else if (matchAttrs(e, es)) { ATermMap drvMap; queryAllAttrs(e, drvMap); for (ATermIterator i(drvMap.keys()); i; ++i) { debug(format("evaluating attribute `%1%'") % *i); - if (parseDerivation(state, drvMap.get(*i), drv)) - drvs[drv.outPath] = drv; + if (parseDerivation(state, drvMap.get(*i), elem)) + elems[elem.outPath] = elem; else - parseDerivations(state, drvMap.get(*i), drvs); + parseDerivations(state, drvMap.get(*i), elems); } } else if (matchList(e, es)) { for (ATermIterator i(es); i; ++i) { debug(format("evaluating list element")); - if (parseDerivation(state, *i, drv)) - drvs[drv.outPath] = drv; + if (parseDerivation(state, *i, elem)) + elems[elem.outPath] = elem; else - parseDerivations(state, *i, drvs); + parseDerivations(state, *i, elems); } } @@ -129,30 +128,18 @@ bool parseDerivations(EvalState & state, Expr e, DrvInfos & drvs) static void loadDerivations(EvalState & state, Path nixExprPath, - string systemFilter, DrvInfos & drvs) + string systemFilter, UserEnvElems & elems) { Expr e = parseExprFromFile(state, absPath(nixExprPath)); - if (!parseDerivations(state, e, drvs)) + if (!parseDerivations(state, e, elems)) throw Error("set of derivations expected"); /* Filter out all derivations not applicable to the current system. */ - for (DrvInfos::iterator i = drvs.begin(), j; i != drvs.end(); i = j) { + for (UserEnvElems::iterator i = elems.begin(), j; i != elems.end(); i = j) { j = i; j++; if (systemFilter != "*" && i->second.system != systemFilter) - drvs.erase(i); - } -} - - -static void queryInstSources(EvalState & state, - const InstallSourceInfo & instSource, DrvInfos & drvs) -{ - switch (instSource.type) { - case srcUnknown: - loadDerivations(state, instSource.nixExprPath, - instSource.systemFilter, drvs); - break; + elems.erase(i); } } @@ -184,7 +171,7 @@ struct AddPos : TermFun }; -void queryInstalled(EvalState & state, DrvInfos & drvs, +static void queryInstalled(EvalState & state, UserEnvElems & elems, const Path & userEnv) { Path path = userEnv + "/manifest"; @@ -198,19 +185,19 @@ void queryInstalled(EvalState & state, DrvInfos & drvs, AddPos addPos; e = bottomupRewrite(addPos, e); - if (!parseDerivations(state, e, drvs)) + if (!parseDerivations(state, e, elems)) throw badTerm(format("set of derivations expected in `%1%'") % path, e); } -void createUserEnv(EvalState & state, const DrvInfos & drvs, +static void createUserEnv(EvalState & state, const UserEnvElems & elems, const Path & profile, bool keepDerivations) { /* Build the components in the user environment, if they don't exist already. */ PathSet drvsToBuild; - for (DrvInfos::const_iterator i = drvs.begin(); - i != drvs.end(); ++i) + for (UserEnvElems::const_iterator i = elems.begin(); + i != elems.end(); ++i) if (i->second.drvPath != "") drvsToBuild.insert(i->second.drvPath); @@ -225,8 +212,8 @@ void createUserEnv(EvalState & state, const DrvInfos & drvs, PathSet references; ATermList manifest = ATempty; ATermList inputs = ATempty; - for (DrvInfos::const_iterator i = drvs.begin(); - i != drvs.end(); ++i) + for (UserEnvElems::const_iterator i = elems.begin(); + i != elems.end(); ++i) { Path drvPath = keepDerivations ? i->second.drvPath : ""; ATerm t = makeAttrs(ATmakeList5( @@ -268,7 +255,7 @@ void createUserEnv(EvalState & state, const DrvInfos & drvs, /* Instantiate it. */ debug(format("evaluating builder expression `%1%'") % topLevel); - DrvInfo topLevelDrv; + UserEnvElem topLevelDrv; if (!parseDerivation(state, topLevel, topLevelDrv)) abort(); @@ -278,67 +265,104 @@ void createUserEnv(EvalState & state, const DrvInfos & drvs, /* Switch the current user environment to the output path. */ debug(format("switching to new user environment")); - Path generation = createGeneration(profile, - topLevelDrv.outPath, topLevelDrv.drvPath); + Path generation = createGeneration(profile, topLevelDrv.outPath); switchLink(profile, generation); } -static void installDerivations(Globals & globals, - DrvNames & selectors, const Path & profile) +static void queryInstSources(EvalState & state, + const InstallSourceInfo & instSource, const Strings & args, + UserEnvElems & elems) { - debug(format("installing derivations")); + switch (instSource.type) { - /* Fetch all derivations from the input file. */ - DrvInfos availDrvs; - queryInstSources(globals.state, globals.instSource, availDrvs); - - /* Filter out the ones we're not interested in. */ - DrvInfos selectedDrvs; - StringSet selectedNames; - for (DrvInfos::iterator i = availDrvs.begin(); - i != availDrvs.end(); ++i) - { - DrvName drvName(i->second.name); - for (DrvNames::iterator j = selectors.begin(); - j != selectors.end(); ++j) - { - if (j->matches(drvName)) { - printMsg(lvlInfo, - format("installing `%1%'") % i->second.name); - j->hits++; - selectedDrvs.insert(*i); - selectedNames.insert(drvName.name); + /* Get the available user environment elements from the + derivations specified in a Nix expression, including only + those with names matching any of the names in `args'. */ + case srcUnknown: + case srcNixExprDrvs: { + + DrvNames selectors = drvNamesFromArgs(args); + + /* Load the derivations from the (default or specified) + Nix expression. */ + UserEnvElems allElems; + loadDerivations(state, instSource.nixExprPath, + instSource.systemFilter, allElems); + + /* Filter out the ones we're not interested in. */ + for (UserEnvElems::iterator i = allElems.begin(); + i != allElems.end(); ++i) + { + DrvName drvName(i->second.name); + for (DrvNames::iterator j = selectors.begin(); + j != selectors.end(); ++j) + { + if (j->matches(drvName)) { + j->hits++; + elems.insert(*i); + } + } } + + /* Check that all selectors have been used. */ + for (DrvNames::iterator i = selectors.begin(); + i != selectors.end(); ++i) + if (i->hits == 0) + throw Error(format("selector `%1%' matches no derivations") + % i->fullName); + + break; } + + case srcNixExprs: + break; + + case srcStorePaths: + break; + + case srcProfile: + break; } +} - /* Check that all selectors have been used. */ - for (DrvNames::iterator i = selectors.begin(); - i != selectors.end(); ++i) - if (i->hits == 0) - throw Error(format("selector `%1%' matches no derivations") - % i->fullName); - - /* Add in the already installed derivations. */ - DrvInfos installedDrvs; - queryInstalled(globals.state, installedDrvs, profile); - for (DrvInfos::iterator i = installedDrvs.begin(); - i != installedDrvs.end(); ++i) +static void installDerivations(Globals & globals, + const Strings & args, const Path & profile) +{ + debug(format("installing derivations")); + + /* Get the set of user environment elements to be installed. */ + UserEnvElems newElems; + queryInstSources(globals.state, globals.instSource, args, newElems); + + StringSet newNames; + for (UserEnvElems::iterator i = newElems.begin(); i != newElems.end(); ++i) { + printMsg(lvlInfo, + format("installing `%1%'") % i->second.name); + newNames.insert(DrvName(i->second.name).name); + } + + /* Add in the already installed derivations, unless they have the + same name as a to-be-installed element. */ + UserEnvElems installedElems; + queryInstalled(globals.state, installedElems, profile); + + for (UserEnvElems::iterator i = installedElems.begin(); + i != installedElems.end(); ++i) { DrvName drvName(i->second.name); if (!globals.preserveInstalled && - selectedNames.find(drvName.name) != selectedNames.end()) + newNames.find(drvName.name) != newNames.end()) printMsg(lvlInfo, format("uninstalling `%1%'") % i->second.name); else - selectedDrvs.insert(*i); + newElems.insert(*i); } if (globals.dryRun) return; - createUserEnv(globals.state, selectedDrvs, + createUserEnv(globals.state, newElems, profile, globals.keepDerivations); } @@ -349,9 +373,7 @@ static void opInstall(Globals & globals, if (opFlags.size() > 0) throw UsageError(format("unknown flags `%1%'") % opFlags.front()); - DrvNames drvNames = drvNamesFromArgs(opArgs); - - installDerivations(globals, drvNames, globals.profile); + installDerivations(globals, opArgs, globals.profile); } @@ -359,7 +381,7 @@ typedef enum { utLt, utLeq, utAlways } UpgradeType; static void upgradeDerivations(Globals & globals, - DrvNames & selectors, const Path & profile, + const Strings & args, const Path & profile, UpgradeType upgradeType) { debug(format("upgrading derivations")); @@ -370,47 +392,28 @@ static void upgradeDerivations(Globals & globals, name and a higher version number. */ /* Load the currently installed derivations. */ - DrvInfos installedDrvs; - queryInstalled(globals.state, installedDrvs, profile); + UserEnvElems installedElems; + queryInstalled(globals.state, installedElems, profile); /* Fetch all derivations from the input file. */ - DrvInfos availDrvs; - queryInstSources(globals.state, globals.instSource, availDrvs); + UserEnvElems availElems; + queryInstSources(globals.state, globals.instSource, args, availElems); /* Go through all installed derivations. */ - DrvInfos newDrvs; - for (DrvInfos::iterator i = installedDrvs.begin(); - i != installedDrvs.end(); ++i) + UserEnvElems newElems; + for (UserEnvElems::iterator i = installedElems.begin(); + i != installedElems.end(); ++i) { DrvName drvName(i->second.name); - DrvName selector; - /* Do we want to upgrade this derivation? */ - bool upgrade = false; - for (DrvNames::iterator j = selectors.begin(); - j != selectors.end(); ++j) - { - if (j->name == "*" || j->name == drvName.name) { - j->hits++; - selector = *j; - upgrade = true; - break; - } - } - - if (!upgrade) { - newDrvs.insert(*i); - continue; - } - - /* If yes, find the derivation in the input Nix expression - with the same name and satisfying the version constraints - specified by upgradeType. If there are multiple matches, - take the one with highest version. */ - DrvInfos::iterator bestDrv = availDrvs.end(); + /* Find the derivation in the input Nix expression with the + same name and satisfying the version constraints specified + by upgradeType. If there are multiple matches, take the + one with highest version. */ + UserEnvElems::iterator bestElem = availElems.end(); DrvName bestName; - for (DrvInfos::iterator j = availDrvs.begin(); - j != availDrvs.end(); ++j) + for (UserEnvElems::iterator j = availElems.begin(); + j != availElems.end(); ++j) { DrvName newName(j->second.name); if (newName.name == drvName.name) { @@ -419,31 +422,30 @@ static void upgradeDerivations(Globals & globals, upgradeType == utLeq && d <= 0 || upgradeType == utAlways) { - if (selector.matches(newName) && - (bestDrv == availDrvs.end() || + if ((bestElem == availElems.end() || compareVersions( bestName.version, newName.version) < 0)) { - bestDrv = j; + bestElem = j; bestName = newName; } } } } - if (bestDrv != availDrvs.end() && - i->second.drvPath != bestDrv->second.drvPath) + if (bestElem != availElems.end() && + i->second.outPath != bestElem->second.outPath) { printMsg(lvlInfo, format("upgrading `%1%' to `%2%'") - % i->second.name % bestDrv->second.name); - newDrvs.insert(*bestDrv); - } else newDrvs.insert(*i); + % i->second.name % bestElem->second.name); + newElems.insert(*bestElem); + } else newElems.insert(*i); } if (globals.dryRun) return; - createUserEnv(globals.state, newDrvs, + createUserEnv(globals.state, newElems, profile, globals.keepDerivations); } @@ -459,20 +461,18 @@ static void opUpgrade(Globals & globals, else if (*i == "--always") upgradeType = utAlways; else throw UsageError(format("unknown flag `%1%'") % *i); - DrvNames drvNames = drvNamesFromArgs(opArgs); - - upgradeDerivations(globals, drvNames, globals.profile, upgradeType); + upgradeDerivations(globals, opArgs, globals.profile, upgradeType); } static void uninstallDerivations(Globals & globals, DrvNames & selectors, Path & profile) { - DrvInfos installedDrvs; - queryInstalled(globals.state, installedDrvs, profile); + UserEnvElems installedElems; + queryInstalled(globals.state, installedElems, profile); - for (DrvInfos::iterator i = installedDrvs.begin(); - i != installedDrvs.end(); ++i) + for (UserEnvElems::iterator i = installedElems.begin(); + i != installedElems.end(); ++i) { DrvName drvName(i->second.name); for (DrvNames::iterator j = selectors.begin(); @@ -480,13 +480,13 @@ static void uninstallDerivations(Globals & globals, DrvNames & selectors, if (j->matches(drvName)) { printMsg(lvlInfo, format("uninstalling `%1%'") % i->second.name); - installedDrvs.erase(i); + installedElems.erase(i); } } if (globals.dryRun) return; - createUserEnv(globals.state, installedDrvs, + createUserEnv(globals.state, installedElems, profile, globals.keepDerivations); } @@ -510,7 +510,7 @@ static bool cmpChars(char a, char b) } -static bool cmpDrvByName(const DrvInfo & a, const DrvInfo & b) +static bool cmpElemByName(const UserEnvElem & a, const UserEnvElem & b) { return lexicographical_compare( a.name.begin(), a.name.end(), @@ -575,17 +575,17 @@ static void opQuery(Globals & globals, else throw UsageError(format("unknown flag `%1%'") % *i); /* Obtain derivation information from the specified source. */ - DrvInfos drvs; + UserEnvElems elems; switch (source) { case sInstalled: - queryInstalled(globals.state, drvs, globals.profile); + queryInstalled(globals.state, elems, globals.profile); break; case sAvailable: { loadDerivations(globals.state, globals.instSource.nixExprPath, - globals.instSource.systemFilter, drvs); + globals.instSource.systemFilter, elems); break; } @@ -595,14 +595,14 @@ static void opQuery(Globals & globals, if (opArgs.size() != 0) throw UsageError("no arguments expected"); /* Sort them by name. */ - DrvInfoList drvs2; - for (DrvInfos::iterator i = drvs.begin(); i != drvs.end(); ++i) - drvs2.push_back(i->second); - sort(drvs2.begin(), drvs2.end(), cmpDrvByName); + vector<UserEnvElem> elems2; + for (UserEnvElems::iterator i = elems.begin(); i != elems.end(); ++i) + elems2.push_back(i->second); + sort(elems2.begin(), elems2.end(), cmpElemByName); /* We only need to know the installed paths when we are querying the status of the derivation. */ - DrvInfos installed; /* installed paths */ + UserEnvElems installed; /* installed paths */ if (printStatus) queryInstalled(globals.state, installed, globals.profile); @@ -610,8 +610,9 @@ static void opQuery(Globals & globals, /* Print the desired columns. */ Table table; - for (DrvInfoList::iterator i = drvs2.begin(); i != drvs2.end(); ++i) { - + for (vector<UserEnvElem>::iterator i = elems2.begin(); + i != elems2.end(); ++i) + { Strings columns; if (printStatus) { @@ -794,6 +795,16 @@ static void opDefaultExpr(Globals & globals, } +static string needArg(Strings::iterator & i, + const Strings & args, const string & arg) +{ + ++i; + if (i == args.end()) throw UsageError( + format("`%1%' requires an argument") % arg); + return *i; +} + + void run(Strings args) { Strings opFlags, opArgs; @@ -818,6 +829,12 @@ void run(Strings args) if (arg == "--install" || arg == "-i") op = opInstall; + else if (arg == "--from-expression" || arg == "-E") + globals.instSource.type = srcNixExprs; + else if (arg == "--from-profile") { + globals.instSource.type = srcProfile; + globals.instSource.profile = needArg(i, args, arg); + } else if (arg == "--uninstall" || arg == "-e") op = opUninstall; else if (arg == "--upgrade" || arg == "-u") @@ -827,16 +844,10 @@ void run(Strings args) else if (arg == "--import" || arg == "-I") /* !!! bad name */ op = opDefaultExpr; else if (arg == "--profile" || arg == "-p") { - ++i; - if (i == args.end()) throw UsageError( - format("`%1%' requires an argument") % arg); - globals.profile = absPath(*i); + globals.profile = absPath(needArg(i, args, arg)); } else if (arg == "--file" || arg == "-f") { - ++i; - if (i == args.end()) throw UsageError( - format("`%1%' requires an argument") % arg); - globals.instSource.nixExprPath = absPath(*i); + globals.instSource.nixExprPath = absPath(needArg(i, args, arg)); } else if (arg == "--switch-profile" || arg == "-S") op = opSwitchProfile; @@ -855,10 +866,7 @@ void run(Strings args) else if (arg == "--preserve-installed" || arg == "-P") globals.preserveInstalled = true; else if (arg == "--system-filter") { - ++i; - if (i == args.end()) throw UsageError( - format("`%1%' requires an argument") % arg); - globals.instSource.systemFilter = *i; + globals.instSource.systemFilter = needArg(i, args, arg); } else if (arg[0] == '-') opFlags.push_back(arg); diff --git a/src/nix-env/profiles.cc b/src/nix-env/profiles.cc index 52144eb2f69d..1039634d60ac 100644 --- a/src/nix-env/profiles.cc +++ b/src/nix-env/profiles.cc @@ -69,7 +69,7 @@ static void makeName(const Path & profile, unsigned int num, } -Path createGeneration(Path profile, Path outPath, Path drvPath) +Path createGeneration(Path profile, Path outPath) { /* The new generation number should be higher than old the previous ones. */ diff --git a/src/nix-env/profiles.hh b/src/nix-env/profiles.hh index 58e45835eab4..dc27d1c83de8 100644 --- a/src/nix-env/profiles.hh +++ b/src/nix-env/profiles.hh @@ -28,7 +28,7 @@ typedef list<Generation> Generations; profile, sorted by generation number. */ Generations findGenerations(Path profile, int & curGen); -Path createGeneration(Path profile, Path outPath, Path drvPath); +Path createGeneration(Path profile, Path outPath); void deleteGeneration(const Path & profile, unsigned int gen); |