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Factor out --from / --to logic

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This commit is contained in:
Eelco Dolstra 2022-01-17 13:58:26 +01:00
parent f6f0bcf11f
commit 6448ea84ab
3 changed files with 66 additions and 44 deletions
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54
src/libcmd/command.cc
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@ -73,13 +73,16 @@ ref<Store> EvalCommand::getEvalStore()
ref<EvalState> EvalCommand::getEvalState()
{
if (!evalState) evalState =
#if HAVE_BOEHMGC
std::allocate_shared<EvalState>(traceable_allocator<EvalState>(),
#else
std::make_shared<EvalState>(
#endif
searchPath, getEvalStore(), getStore());
if (!evalState)
evalState =
#if HAVE_BOEHMGC
std::allocate_shared<EvalState>(traceable_allocator<EvalState>(),
searchPath, getEvalStore(), getStore())
#else
std::make_shared<EvalState>(
searchPath, getEvalStore(), getStore())
#endif
;
return ref<EvalState>(evalState);
}
@ -156,6 +159,43 @@ void StorePathsCommand::run(ref<Store> store, BuiltPaths && paths)
run(store, std::move(sorted));
}
CopyCommand::CopyCommand()
: BuiltPathsCommand(true)
{
addFlag({
.longName = "from",
.description = "URL of the source Nix store.",
.labels = {"store-uri"},
.handler = {&srcUri},
});
addFlag({
.longName = "to",
.description = "URL of the destination Nix store.",
.labels = {"store-uri"},
.handler = {&dstUri},
});
}
ref<Store> CopyCommand::createStore()
{
return srcUri.empty() ? StoreCommand::createStore() : openStore(srcUri);
}
void CopyCommand::run(ref<Store> store)
{
if (srcUri.empty() && dstUri.empty())
throw UsageError("you must pass '--from' and/or '--to'");
BuiltPathsCommand::run(store);
}
void CopyCommand::run(ref<Store> srcStore, BuiltPaths && paths)
{
ref<Store> dstStore = dstUri.empty() ? openStore() : openStore(dstUri);
run(srcStore, dstStore, std::move(paths));
}
void StorePathCommand::run(ref<Store> store, std::vector<StorePath> && storePaths)
{
if (storePaths.size() != 1)