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Don't override evalSettings.pureEval unless necessary

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Other eval flags like `--pure-eval` may activate `evalSettings.pureEval`,
so let's avoid touching it if we don't have to.
This commit is contained in:
Zhaofeng Li 2022-08-17 00:38:37 -06:00
parent 77dd514304
commit 9f64612215
1 changed files with 9 additions and 11 deletions
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20
src/nix-eval-jobs.cc
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@ -30,8 +30,6 @@
using namespace nix; using namespace nix;
using namespace nlohmann; using namespace nlohmann;
typedef enum { evalAuto, evalImpure, evalPure } pureEval;
// Safe to ignore - the args will be static. // Safe to ignore - the args will be static.
#ifdef __GNUC__ #ifdef __GNUC__
#pragma GCC diagnostic ignored "-Wnon-virtual-dtor" #pragma GCC diagnostic ignored "-Wnon-virtual-dtor"
@ -44,9 +42,9 @@ struct MyArgs : MixEvalArgs, MixCommonArgs {
bool flake = false; bool flake = false;
bool meta = false; bool meta = false;
bool showTrace = false; bool showTrace = false;
bool impure = false;
size_t nrWorkers = 1; size_t nrWorkers = 1;
size_t maxMemorySize = 4096; size_t maxMemorySize = 4096;
pureEval evalMode = evalAuto;
MyArgs() : MixCommonArgs("nix-eval-jobs") { MyArgs() : MixCommonArgs("nix-eval-jobs") {
addFlag({ addFlag({
@ -65,11 +63,9 @@ struct MyArgs : MixEvalArgs, MixCommonArgs {
}}, }},
}); });
addFlag({ addFlag({.longName = "impure",
.longName = "impure", .description = "allow impure expressions",
.description = "set evaluation mode", .handler = {&impure, true}});
.handler = {[&]() { evalMode = evalImpure; }},
});
addFlag({.longName = "gc-roots-dir", addFlag({.longName = "gc-roots-dir",
.description = "garbage collector roots directory", .description = "garbage collector roots directory",
@ -493,9 +489,11 @@ int main(int argc, char **argv) {
/* When building a flake, use pure evaluation (no access to /* When building a flake, use pure evaluation (no access to
'getEnv', 'currentSystem' etc. */ 'getEnv', 'currentSystem' etc. */
evalSettings.pureEval = myArgs.evalMode == evalAuto if (myArgs.impure) {
? myArgs.flake evalSettings.pureEval = false;
: myArgs.evalMode == evalPure; } else if (myArgs.flake) {
evalSettings.pureEval = true;
}
if (myArgs.releaseExpr == "") if (myArgs.releaseExpr == "")
throw UsageError("no expression specified"); throw UsageError("no expression specified");