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Warn about --override-input / --update-input flags that don't match an input

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This commit is contained in:
Eelco Dolstra 2020-03-28 19:09:36 +01:00
parent 2287e2f279
commit 2fccef0c59
1 changed files with 13 additions and 0 deletions
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13
src/libexpr/flake/flake.cc
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@ -314,6 +314,7 @@ LockedFlake lockFlake(
// FIXME: check whether all overrides are used.
std::map<InputPath, FlakeInput> overrides;
std::set<InputPath> overridesUsed, updatesUsed;
for (auto & i : lockFlags.inputOverrides)
overrides.insert_or_assign(i.first, FlakeInput { .ref = i.second });
@ -363,6 +364,7 @@ LockedFlake lockFlake(
ancestors? */
auto i = overrides.find(inputPath);
bool hasOverride = i != overrides.end();
if (hasOverride) overridesUsed.insert(inputPath);
auto & input = hasOverride ? i->second : input2;
/* Resolve 'follows' later (since it may refer to an input
@ -385,6 +387,8 @@ LockedFlake lockFlake(
don't have a --update-input flag for this input? */
std::shared_ptr<const LockedNode> oldLock;
updatesUsed.insert(inputPath);
if (oldNode && !lockFlags.inputUpdates.count(inputPath)) {
auto oldLockIt = oldNode->inputs.find(id);
if (oldLockIt != oldNode->inputs.end())
@ -515,6 +519,15 @@ LockedFlake lockFlake(
fromParentNode->inputs.insert_or_assign(from.back(), toNode);
}
for (auto & i : lockFlags.inputOverrides)
if (!overridesUsed.count(i.first))
warn("the flag '--override-input %s %s' does not match any input",
concatStringsSep("/", i.first), i.second);
for (auto & i : lockFlags.inputUpdates)
if (!updatesUsed.count(i))
warn("the flag '--update-input %s' does not match any input", concatStringsSep("/", i));
debug("new lock file: %s", newLockFile);
/* Check whether we need to / can write the new lock file. */