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authorJohn Ericson <John.Ericson@Obsidian.Systems>2020-09-15 14:08:35 +0000
committerJohn Ericson <John.Ericson@Obsidian.Systems>2020-09-15 14:08:35 +0000
commitc08c9f08c75bf379439348cccb5b8871a27bf498 (patch)
treec4a7276366b31047b9f437865bebe21a919382af /src/nix/develop.cc
parent3df78858f2ad91a80e30ba910119a0c16c05c66a (diff)
parent733d2e9402807e54d503c3113e854bfddb3d44e0 (diff)
Merge remote-tracking branch 'upstream/master' into remove-storetype-delegate-regStore
Diffstat (limited to 'src/nix/develop.cc')
-rw-r--r--src/nix/develop.cc136
1 files changed, 105 insertions, 31 deletions
diff --git a/src/nix/develop.cc b/src/nix/develop.cc
index 434088da7..516e7bda9 100644
--- a/src/nix/develop.cc
+++ b/src/nix/develop.cc
@@ -15,7 +15,7 @@ struct Var
{
bool exported = true;
bool associative = false;
- std::string value; // quoted string or array
+ std::string quoted; // quoted string or array
};
struct BuildEnvironment
@@ -75,12 +75,12 @@ BuildEnvironment readEnvironment(const Path & path)
else if (std::regex_search(pos, file.cend(), match, varRegex, std::regex_constants::match_continuous)) {
pos = match[0].second;
- res.env.insert({match[1], Var { .exported = exported.count(match[1]) > 0, .value = match[2] }});
+ res.env.insert({match[1], Var { .exported = exported.count(match[1]) > 0, .quoted = match[2] }});
}
else if (std::regex_search(pos, file.cend(), match, assocArrayRegex, std::regex_constants::match_continuous)) {
pos = match[0].second;
- res.env.insert({match[1], Var { .associative = true, .value = match[2] }});
+ res.env.insert({match[1], Var { .associative = true, .quoted = match[2] }});
}
else if (std::regex_search(pos, file.cend(), match, functionRegex, std::regex_constants::match_continuous)) {
@@ -92,6 +92,8 @@ BuildEnvironment readEnvironment(const Path & path)
path, file.substr(pos - file.cbegin(), 60));
}
+ res.env.erase("__output");
+
return res;
}
@@ -125,27 +127,32 @@ StorePath getDerivationEnvironment(ref<Store> store, const StorePath & drvPath)
/* Rehash and write the derivation. FIXME: would be nice to use
'buildDerivation', but that's privileged. */
drv.name += "-env";
- for (auto & output : drv.outputs)
- drv.env.erase(output.first);
- drv.outputs = {{"out", DerivationOutput { .output = DerivationOutputInputAddressed { .path = StorePath::dummy }}}};
- drv.env["out"] = "";
- drv.env["_outputs_saved"] = drv.env["outputs"];
- drv.env["outputs"] = "out";
+ for (auto & output : drv.outputs) {
+ output.second = { .output = DerivationOutputInputAddressed { .path = StorePath::dummy } };
+ drv.env[output.first] = "";
+ }
drv.inputSrcs.insert(std::move(getEnvShPath));
Hash h = std::get<0>(hashDerivationModulo(*store, drv, true));
- auto shellOutPath = store->makeOutputPath("out", h, drv.name);
- drv.outputs.insert_or_assign("out", DerivationOutput { .output = DerivationOutputInputAddressed {
- .path = shellOutPath
- } });
- drv.env["out"] = store->printStorePath(shellOutPath);
- auto shellDrvPath2 = writeDerivation(store, drv);
+
+ for (auto & output : drv.outputs) {
+ auto outPath = store->makeOutputPath(output.first, h, drv.name);
+ output.second = { .output = DerivationOutputInputAddressed { .path = outPath } };
+ drv.env[output.first] = store->printStorePath(outPath);
+ }
+
+ auto shellDrvPath = writeDerivation(*store, drv);
/* Build the derivation. */
- store->buildPaths({{shellDrvPath2}});
+ store->buildPaths({{shellDrvPath}});
- assert(store->isValidPath(shellOutPath));
+ for (auto & outPath : drv.outputPaths(*store)) {
+ assert(store->isValidPath(outPath));
+ auto outPathS = store->toRealPath(outPath);
+ if (lstat(outPathS).st_size)
+ return outPath;
+ }
- return shellOutPath;
+ throw Error("get-env.sh failed to produce an environment");
}
struct Common : InstallableCommand, MixProfile
@@ -171,8 +178,12 @@ struct Common : InstallableCommand, MixProfile
"UID",
};
- void makeRcScript(const BuildEnvironment & buildEnvironment, std::ostream & out)
+ std::string makeRcScript(
+ const BuildEnvironment & buildEnvironment,
+ const Path & outputsDir = absPath(".") + "/outputs")
{
+ std::ostringstream out;
+
out << "unset shellHook\n";
out << "nix_saved_PATH=\"$PATH\"\n";
@@ -180,9 +191,9 @@ struct Common : InstallableCommand, MixProfile
for (auto & i : buildEnvironment.env) {
if (!ignoreVars.count(i.first) && !hasPrefix(i.first, "BASH_")) {
if (i.second.associative)
- out << fmt("declare -A %s=(%s)\n", i.first, i.second.value);
+ out << fmt("declare -A %s=(%s)\n", i.first, i.second.quoted);
else {
- out << fmt("%s=%s\n", i.first, i.second.value);
+ out << fmt("%s=%s\n", i.first, i.second.quoted);
if (i.second.exported)
out << fmt("export %s\n", i.first);
}
@@ -193,13 +204,26 @@ struct Common : InstallableCommand, MixProfile
out << buildEnvironment.bashFunctions << "\n";
- // FIXME: set outputs
-
out << "export NIX_BUILD_TOP=\"$(mktemp -d --tmpdir nix-shell.XXXXXX)\"\n";
for (auto & i : {"TMP", "TMPDIR", "TEMP", "TEMPDIR"})
out << fmt("export %s=\"$NIX_BUILD_TOP\"\n", i);
out << "eval \"$shellHook\"\n";
+
+ /* Substitute occurrences of output paths. */
+ auto outputs = buildEnvironment.env.find("outputs");
+ assert(outputs != buildEnvironment.env.end());
+
+ // FIXME: properly unquote 'outputs'.
+ StringMap rewrites;
+ for (auto & outputName : tokenizeString<std::vector<std::string>>(replaceStrings(outputs->second.quoted, "'", ""))) {
+ auto from = buildEnvironment.env.find(outputName);
+ assert(from != buildEnvironment.env.end());
+ // FIXME: unquote
+ rewrites.insert({from->second.quoted, outputsDir + "/" + outputName});
+ }
+
+ return rewriteStrings(out.str(), rewrites);
}
Strings getDefaultFlakeAttrPaths() override
@@ -240,19 +264,57 @@ struct Common : InstallableCommand, MixProfile
struct CmdDevelop : Common, MixEnvironment
{
std::vector<std::string> command;
+ std::optional<std::string> phase;
CmdDevelop()
{
addFlag({
.longName = "command",
.shortName = 'c',
- .description = "command and arguments to be executed insted of an interactive shell",
+ .description = "command and arguments to be executed instead of an interactive shell",
.labels = {"command", "args"},
.handler = {[&](std::vector<std::string> ss) {
if (ss.empty()) throw UsageError("--command requires at least one argument");
command = ss;
}}
});
+
+ addFlag({
+ .longName = "phase",
+ .description = "phase to run (e.g. `build` or `configure`)",
+ .labels = {"phase-name"},
+ .handler = {&phase},
+ });
+
+ addFlag({
+ .longName = "configure",
+ .description = "run the configure phase",
+ .handler = {&phase, {"configure"}},
+ });
+
+ addFlag({
+ .longName = "build",
+ .description = "run the build phase",
+ .handler = {&phase, {"build"}},
+ });
+
+ addFlag({
+ .longName = "check",
+ .description = "run the check phase",
+ .handler = {&phase, {"check"}},
+ });
+
+ addFlag({
+ .longName = "install",
+ .description = "run the install phase",
+ .handler = {&phase, {"install"}},
+ });
+
+ addFlag({
+ .longName = "installcheck",
+ .description = "run the installcheck phase",
+ .handler = {&phase, {"installCheck"}},
+ });
}
std::string description() override
@@ -288,19 +350,31 @@ struct CmdDevelop : Common, MixEnvironment
auto [rcFileFd, rcFilePath] = createTempFile("nix-shell");
- std::ostringstream ss;
- makeRcScript(buildEnvironment, ss);
+ auto script = makeRcScript(buildEnvironment);
+
+ if (verbosity >= lvlDebug)
+ script += "set -x\n";
- ss << fmt("rm -f '%s'\n", rcFilePath);
+ script += fmt("rm -f '%s'\n", rcFilePath);
+
+ if (phase) {
+ if (!command.empty())
+ throw UsageError("you cannot use both '--command' and '--phase'");
+ // FIXME: foundMakefile is set by buildPhase, need to get
+ // rid of that.
+ script += fmt("foundMakefile=1\n");
+ script += fmt("runHook %1%Phase\n", *phase);
+ script += fmt("exit 0\n", *phase);
+ }
- if (!command.empty()) {
+ else if (!command.empty()) {
std::vector<std::string> args;
for (auto s : command)
args.push_back(shellEscape(s));
- ss << fmt("exec %s\n", concatStringsSep(" ", args));
+ script += fmt("exec %s\n", concatStringsSep(" ", args));
}
- writeFull(rcFileFd.get(), ss.str());
+ writeFull(rcFileFd.get(), script);
stopProgressBar();
@@ -362,7 +436,7 @@ struct CmdPrintDevEnv : Common
stopProgressBar();
- makeRcScript(buildEnvironment, std::cout);
+ std::cout << makeRcScript(buildEnvironment);
}
};