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Factor out MixOutLinkByDefault

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This commit is contained in:
Robert Hensing 2025-04-28 16:53:53 +02:00
parent 3f811c2373
commit 9d1f00e31d
3 changed files with 47 additions and 21 deletions
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7
src/libcmd/command.cc
View file

@ -397,4 +397,11 @@ void createOutLinks(const std::filesystem::path & outLink, const BuiltPaths & bu
}
}
void MixOutLinkBase::createOutLinksMaybe(const std::vector<BuiltPathWithResult> & buildables, ref<Store> & store)
{
if (outLink != "")
if (auto store2 = store.dynamic_pointer_cast<LocalFSStore>())
createOutLinks(outLink, toBuiltPaths(buildables), *store2);
}
}

37
src/libcmd/include/nix/cmd/command.hh
View file

@ -374,4 +374,41 @@ void printClosureDiff(
*/
void createOutLinks(const std::filesystem::path & outLink, const BuiltPaths & buildables, LocalFSStore & store);
/** `outLink` parameter, `createOutLinksMaybe` method. See `MixOutLinkByDefault`. */
struct MixOutLinkBase : virtual Args
{
/** Prefix for any output symlinks. Empty means do not write an output symlink. */
Path outLink;
MixOutLinkBase(const std::string & defaultOutLink)
: outLink(defaultOutLink)
{
}
void createOutLinksMaybe(const std::vector<BuiltPathWithResult> & buildables, ref<Store> & store);
};
/** `--out-link`, `--no-link`, `createOutLinksMaybe` */
struct MixOutLinkByDefault : MixOutLinkBase, virtual Args
{
MixOutLinkByDefault()
: MixOutLinkBase("result")
{
addFlag({
.longName = "out-link",
.shortName = 'o',
.description = "Use *path* as prefix for the symlinks to the build results. It defaults to `result`.",
.labels = {"path"},
.handler = {&outLink},
.completer = completePath,
});
addFlag({
.longName = "no-link",
.description = "Do not create symlinks to the build results.",
.handler = {&outLink, Path("")},
});
}
};
} // namespace nix

22
src/nix/build.cc
View file

@ -41,29 +41,13 @@ static nlohmann::json builtPathsWithResultToJSON(const std::vector<BuiltPathWith
return res;
}
struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
struct CmdBuild : InstallablesCommand, MixOutLinkByDefault, MixDryRun, MixJSON, MixProfile
{
Path outLink = "result";
bool printOutputPaths = false;
BuildMode buildMode = bmNormal;
CmdBuild()
{
addFlag({
.longName = "out-link",
.shortName = 'o',
.description = "Use *path* as prefix for the symlinks to the build results. It defaults to `result`.",
.labels = {"path"},
.handler = {&outLink},
.completer = completePath,
});
addFlag({
.longName = "no-link",
.description = "Do not create symlinks to the build results.",
.handler = {&outLink, Path("")},
});
addFlag({
.longName = "print-out-paths",
.description = "Print the resulting output paths",
@ -114,9 +98,7 @@ struct CmdBuild : InstallablesCommand, MixDryRun, MixJSON, MixProfile
if (json) logger->cout("%s", builtPathsWithResultToJSON(buildables, *store).dump());
if (outLink != "")
if (auto store2 = store.dynamic_pointer_cast<LocalFSStore>())
createOutLinks(outLink, toBuiltPaths(buildables), *store2);
createOutLinksMaybe(buildables, store);
if (printOutputPaths) {
logger->stop();