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https://github.com/privatevoid-net/nix-super.git
synced 2024-11-13 09:46:16 +02:00
nix-env: Use SourcePath
This commit is contained in:
parent
7617d15458
commit
65e1e49cf7
1 changed files with 36 additions and 33 deletions
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@ -44,7 +44,7 @@ typedef enum {
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struct InstallSourceInfo
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struct InstallSourceInfo
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{
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{
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InstallSourceType type;
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InstallSourceType type;
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Path nixExprPath; /* for srcNixExprDrvs, srcNixExprs */
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std::shared_ptr<SourcePath> nixExprPath; /* for srcNixExprDrvs, srcNixExprs */
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Path profile; /* for srcProfile */
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Path profile; /* for srcProfile */
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std::string systemFilter; /* for srcNixExprDrvs */
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std::string systemFilter; /* for srcNixExprDrvs */
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Bindings * autoArgs;
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Bindings * autoArgs;
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@ -92,9 +92,11 @@ static bool parseInstallSourceOptions(Globals & globals,
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}
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}
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static bool isNixExpr(const Path & path, struct stat & st)
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static bool isNixExpr(const SourcePath & path, struct InputAccessor::Stat & st)
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{
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{
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return S_ISREG(st.st_mode) || (S_ISDIR(st.st_mode) && pathExists(path + "/default.nix"));
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return
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st.type == InputAccessor::tRegular
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|| (st.type == InputAccessor::tDirectory && (path + "default.nix").pathExists());
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}
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}
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@ -102,10 +104,10 @@ static constexpr size_t maxAttrs = 1024;
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static void getAllExprs(EvalState & state,
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static void getAllExprs(EvalState & state,
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const Path & path, StringSet & seen, BindingsBuilder & attrs)
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const SourcePath & path, StringSet & seen, BindingsBuilder & attrs)
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{
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{
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StringSet namesSorted;
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StringSet namesSorted;
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for (auto & i : readDirectory(path)) namesSorted.insert(i.name);
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for (auto & [name, _] : path.readDirectory()) namesSorted.insert(name);
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for (auto & i : namesSorted) {
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for (auto & i : namesSorted) {
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/* Ignore the manifest.nix used by profiles. This is
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/* Ignore the manifest.nix used by profiles. This is
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@ -113,13 +115,16 @@ static void getAllExprs(EvalState & state,
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are implemented using profiles). */
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are implemented using profiles). */
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if (i == "manifest.nix") continue;
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if (i == "manifest.nix") continue;
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Path path2 = path + "/" + i;
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SourcePath path2 = path + i;
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struct stat st;
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InputAccessor::Stat st;
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if (stat(path2.c_str(), &st) == -1)
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try {
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st = path2.accessor.lstat(path2.path.resolveSymlinks());
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} catch (Error &) {
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continue; // ignore dangling symlinks in ~/.nix-defexpr
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continue; // ignore dangling symlinks in ~/.nix-defexpr
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}
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if (isNixExpr(path2, st) && (!S_ISREG(st.st_mode) || hasSuffix(path2, ".nix"))) {
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if (isNixExpr(path2, st) && (st.type != InputAccessor::tRegular || hasSuffix(path2.baseName(), ".nix"))) {
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/* Strip off the `.nix' filename suffix (if applicable),
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/* Strip off the `.nix' filename suffix (if applicable),
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otherwise the attribute cannot be selected with the
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otherwise the attribute cannot be selected with the
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`-A' option. Useful if you want to stick a Nix
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`-A' option. Useful if you want to stick a Nix
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@ -129,21 +134,20 @@ static void getAllExprs(EvalState & state,
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attrName = std::string(attrName, 0, attrName.size() - 4);
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attrName = std::string(attrName, 0, attrName.size() - 4);
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if (!seen.insert(attrName).second) {
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if (!seen.insert(attrName).second) {
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std::string suggestionMessage = "";
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std::string suggestionMessage = "";
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if (path2.find("channels") != std::string::npos && path.find("channels") != std::string::npos) {
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if (path2.path.abs().find("channels") != std::string::npos && path.path.abs().find("channels") != std::string::npos)
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suggestionMessage = fmt("\nsuggestion: remove '%s' from either the root channels or the user channels", attrName);
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suggestionMessage = fmt("\nsuggestion: remove '%s' from either the root channels or the user channels", attrName);
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}
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printError("warning: name collision in input Nix expressions, skipping '%1%'"
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printError("warning: name collision in input Nix expressions, skipping '%1%'"
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"%2%", path2, suggestionMessage);
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"%2%", path2, suggestionMessage);
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continue;
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continue;
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}
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}
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/* Load the expression on demand. */
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/* Load the expression on demand. */
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auto vArg = state.allocValue();
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auto vArg = state.allocValue();
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vArg->mkString(path2);
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vArg->mkPath(path2);
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if (seen.size() == maxAttrs)
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if (seen.size() == maxAttrs)
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throw Error("too many Nix expressions in directory '%1%'", path);
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throw Error("too many Nix expressions in directory '%1%'", path);
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attrs.alloc(attrName).mkApp(&state.getBuiltin("import"), vArg);
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attrs.alloc(attrName).mkApp(&state.getBuiltin("import"), vArg);
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}
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}
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else if (S_ISDIR(st.st_mode))
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else if (st.type == InputAccessor::tDirectory)
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/* `path2' is a directory (with no default.nix in it);
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/* `path2' is a directory (with no default.nix in it);
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recurse into it. */
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recurse into it. */
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getAllExprs(state, path2, seen, attrs);
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getAllExprs(state, path2, seen, attrs);
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@ -152,14 +156,12 @@ static void getAllExprs(EvalState & state,
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static void loadSourceExpr(EvalState & state, const Path & path, Value & v)
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static void loadSourceExpr(EvalState & state, const SourcePath & path, Value & v)
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{
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{
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struct stat st;
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auto st = path.accessor.lstat(path.path.resolveSymlinks());
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if (stat(path.c_str(), &st) == -1)
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throw SysError("getting information about '%1%'", path);
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if (isNixExpr(path, st))
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if (isNixExpr(path, st))
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state.evalFile(state.rootPath(path), v);
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state.evalFile(path, v);
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/* The path is a directory. Put the Nix expressions in the
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/* The path is a directory. Put the Nix expressions in the
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directory in a set, with the file name of each expression as
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directory in a set, with the file name of each expression as
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@ -167,7 +169,7 @@ static void loadSourceExpr(EvalState & state, const Path & path, Value & v)
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set flat, not nested, to make it easier for a user to have a
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set flat, not nested, to make it easier for a user to have a
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~/.nix-defexpr directory that includes some system-wide
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~/.nix-defexpr directory that includes some system-wide
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directory). */
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directory). */
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else if (S_ISDIR(st.st_mode)) {
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else if (st.type == InputAccessor::tDirectory) {
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auto attrs = state.buildBindings(maxAttrs);
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auto attrs = state.buildBindings(maxAttrs);
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attrs.alloc("_combineChannels").mkList(0);
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attrs.alloc("_combineChannels").mkList(0);
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StringSet seen;
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StringSet seen;
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@ -179,7 +181,7 @@ static void loadSourceExpr(EvalState & state, const Path & path, Value & v)
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}
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}
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static void loadDerivations(EvalState & state, Path nixExprPath,
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static void loadDerivations(EvalState & state, const SourcePath & nixExprPath,
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std::string systemFilter, Bindings & autoArgs,
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std::string systemFilter, Bindings & autoArgs,
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const std::string & pathPrefix, DrvInfos & elems)
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const std::string & pathPrefix, DrvInfos & elems)
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{
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{
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@ -390,7 +392,7 @@ static void queryInstSources(EvalState & state,
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/* Load the derivations from the (default or specified)
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/* Load the derivations from the (default or specified)
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Nix expression. */
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Nix expression. */
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DrvInfos allElems;
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DrvInfos allElems;
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loadDerivations(state, instSource.nixExprPath,
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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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elems = filterBySelector(state, allElems, args, newestOnly);
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@ -407,7 +409,7 @@ static void queryInstSources(EvalState & state,
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case srcNixExprs: {
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case srcNixExprs: {
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Value vArg;
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Value vArg;
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loadSourceExpr(state, instSource.nixExprPath, vArg);
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loadSourceExpr(state, *instSource.nixExprPath, vArg);
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for (auto & i : args) {
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for (auto & i : args) {
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Expr * eFun = state.parseExprFromString(i, state.rootPath(absPath(".")));
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Expr * eFun = state.parseExprFromString(i, state.rootPath(absPath(".")));
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@ -462,7 +464,7 @@ static void queryInstSources(EvalState & state,
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case srcAttrPath: {
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case srcAttrPath: {
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Value vRoot;
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Value vRoot;
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loadSourceExpr(state, instSource.nixExprPath, vRoot);
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loadSourceExpr(state, *instSource.nixExprPath, vRoot);
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for (auto & i : args) {
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for (auto & i : args) {
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Value & v(*findAlongAttrPath(state, i, *instSource.autoArgs, vRoot).first);
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Value & v(*findAlongAttrPath(state, i, *instSource.autoArgs, vRoot).first);
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getDerivations(state, v, "", *instSource.autoArgs, elems, true);
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getDerivations(state, v, "", *instSource.autoArgs, elems, true);
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@ -1015,7 +1017,7 @@ static void opQuery(Globals & globals, Strings opFlags, Strings opArgs)
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installedElems = queryInstalled(*globals.state, globals.profile);
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installedElems = queryInstalled(*globals.state, globals.profile);
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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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loadDerivations(*globals.state, *globals.instSource.nixExprPath,
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globals.instSource.systemFilter, *globals.instSource.autoArgs,
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globals.instSource.systemFilter, *globals.instSource.autoArgs,
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attrPath, availElems);
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attrPath, availElems);
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@ -1374,23 +1376,24 @@ static int main_nix_env(int argc, char * * argv)
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Operation op = 0;
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Operation op = 0;
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RepairFlag repair = NoRepair;
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RepairFlag repair = NoRepair;
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std::string file;
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std::string file;
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Path nixExprPath;
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Globals globals;
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Globals globals;
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globals.instSource.type = srcUnknown;
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globals.instSource.type = srcUnknown;
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globals.instSource.nixExprPath = getHome() + "/.nix-defexpr";
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nixExprPath = getHome() + "/.nix-defexpr";
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globals.instSource.systemFilter = "*";
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globals.instSource.systemFilter = "*";
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if (!pathExists(globals.instSource.nixExprPath)) {
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if (!pathExists(nixExprPath)) {
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try {
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try {
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createDirs(globals.instSource.nixExprPath);
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createDirs(nixExprPath);
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replaceSymlink(
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replaceSymlink(
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fmt("%s/profiles/per-user/%s/channels", settings.nixStateDir, getUserName()),
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fmt("%s/profiles/per-user/%s/channels", settings.nixStateDir, getUserName()),
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globals.instSource.nixExprPath + "/channels");
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nixExprPath + "/channels");
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if (getuid() != 0)
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if (getuid() != 0)
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replaceSymlink(
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replaceSymlink(
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fmt("%s/profiles/per-user/root/channels", settings.nixStateDir),
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fmt("%s/profiles/per-user/root/channels", settings.nixStateDir),
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globals.instSource.nixExprPath + "/channels_root");
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nixExprPath + "/channels_root");
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} catch (Error &) { }
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} catch (Error &) { }
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}
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}
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@ -1474,10 +1477,10 @@ static int main_nix_env(int argc, char * * argv)
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globals.state = std::shared_ptr<EvalState>(new EvalState(myArgs.searchPath, store));
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globals.state = std::shared_ptr<EvalState>(new EvalState(myArgs.searchPath, store));
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globals.state->repair = repair;
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globals.state->repair = repair;
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if (file != "")
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globals.instSource.nixExprPath = std::make_shared<SourcePath>(
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// FIXME: check that the accessor returned by
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file != ""
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// lookupFileArg() is the root FS.
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? lookupFileArg(*globals.state, file)
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globals.instSource.nixExprPath = lookupFileArg(*globals.state, file).path.abs();
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: globals.state->rootPath(nixExprPath));
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globals.instSource.autoArgs = myArgs.getAutoArgs(*globals.state);
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globals.instSource.autoArgs = myArgs.getAutoArgs(*globals.state);
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