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nix/build: add --rebuild option

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Occasionally, `nix-build --check` is fairly helpful and I'd like to be
able to use this feature for flakes that need to be built with `nix
build` as well.
This commit is contained in:
Maximilian Bosch 2020-06-29 10:05:44 +02:00
parent 17f75f9cc4
commit 5a09eb86f1
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GPG key ID: 091DBF4D1FC46B8E
3 changed files with 12 additions and 4 deletions
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9
src/nix/build.cc
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@ -9,6 +9,7 @@ using namespace nix;
struct CmdBuild : InstallablesCommand, MixDryRun, MixProfile struct CmdBuild : InstallablesCommand, MixDryRun, MixProfile
{ {
Path outLink = "result"; Path outLink = "result";
BuildMode buildMode = bmNormal;
CmdBuild() CmdBuild()
{ {
@ -26,6 +27,12 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixProfile
.description = "do not create a symlink to the build result", .description = "do not create a symlink to the build result",
.handler = {&outLink, Path("")}, .handler = {&outLink, Path("")},
}); });
addFlag({
.longName = "rebuild",
.description = "Rebuild an already built package locally and compare the result to the existing store-paths.",
.handler = {&buildMode, bmCheck},
});
} }
std::string description() override std::string description() override
@ -53,7 +60,7 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixProfile
void run(ref<Store> store) override void run(ref<Store> store) override
{ {
auto buildables = build(store, dryRun ? Realise::Nothing : Realise::Outputs, installables); auto buildables = build(store, dryRun ? Realise::Nothing : Realise::Outputs, installables, buildMode);
if (dryRun) return; if (dryRun) return;

3
src/nix/command.hh
View file

@ -5,6 +5,7 @@
#include "common-eval-args.hh" #include "common-eval-args.hh"
#include "path.hh" #include "path.hh"
#include "flake/lockfile.hh" #include "flake/lockfile.hh"
#include "store-api.hh"
#include <optional> #include <optional>
@ -185,7 +186,7 @@ static RegisterCommand registerCommand(const std::string & name)
} }
Buildables build(ref<Store> store, Realise mode, Buildables build(ref<Store> store, Realise mode,
std::vector<std::shared_ptr<Installable>> installables); std::vector<std::shared_ptr<Installable>> installables, BuildMode bMode = bmNormal);
std::set<StorePath> toStorePaths(ref<Store> store, std::set<StorePath> toStorePaths(ref<Store> store,
Realise mode, OperateOn operateOn, Realise mode, OperateOn operateOn,

4
src/nix/installables.cc
View file

@ -642,7 +642,7 @@ std::shared_ptr<Installable> SourceExprCommand::parseInstallable(
} }
Buildables build(ref<Store> store, Realise mode, Buildables build(ref<Store> store, Realise mode,
std::vector<std::shared_ptr<Installable>> installables) std::vector<std::shared_ptr<Installable>> installables, BuildMode bMode)
{ {
if (mode == Realise::Nothing) if (mode == Realise::Nothing)
settings.readOnlyMode = true; settings.readOnlyMode = true;
@ -668,7 +668,7 @@ Buildables build(ref<Store> store, Realise mode,
if (mode == Realise::Nothing) if (mode == Realise::Nothing)
printMissing(store, pathsToBuild, lvlError); printMissing(store, pathsToBuild, lvlError);
else if (mode == Realise::Outputs) else if (mode == Realise::Outputs)
store->buildPaths(pathsToBuild); store->buildPaths(pathsToBuild, bMode);
return buildables; return buildables;
} }