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Fix flake subdir handling

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This commit is contained in:
Eelco Dolstra 2022-05-12 19:31:07 +02:00
parent 1ee5dd6d96
commit 9e05daaa9e
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GPG key ID: 8170B4726D7198DE
2 changed files with 28 additions and 25 deletions
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50
src/libexpr/flake/flake.cc
View file

@ -222,8 +222,7 @@ static Flake readFlake(
.originalRef = lockedRef,
.resolvedRef = lockedRef,
.lockedRef = lockedRef,
.accessor = &accessor,
.flakePath = dirOf(flakePath.path),
.path = flakePath,
};
if (auto description = vInfo.attrs->get(state.sDescription)) {
@ -332,7 +331,7 @@ Flake getFlake(EvalState & state, const FlakeRef & originalRef, bool allowLookup
static LockFile readLockFile(const Flake & flake)
{
SourcePath lockFilePath{*flake.accessor, canonPath(flake.flakePath + "/flake.lock")};
auto lockFilePath = flake.path.parent().append("/flake.lock");
return lockFilePath.pathExists()
? LockFile(lockFilePath.readFile(), fmt("%s", lockFilePath))
: LockFile();
@ -351,16 +350,16 @@ LockedFlake lockFlake(
auto useRegistries = lockFlags.useRegistries.value_or(fetchSettings.useRegistries);
auto flake = getFlake(state, topRef, useRegistries, flakeCache, {});
auto flake = std::make_unique<Flake>(getFlake(state, topRef, useRegistries, flakeCache, {}));
if (lockFlags.applyNixConfig) {
flake.config.apply();
flake->config.apply();
state.store->setOptions();
}
try {
auto oldLockFile = readLockFile(flake);
auto oldLockFile = readLockFile(*flake);
debug("old lock file: %s", oldLockFile);
@ -381,7 +380,7 @@ LockedFlake lockFlake(
const InputPath & inputPathPrefix,
std::shared_ptr<const Node> oldNode,
const InputPath & lockRootPath,
const Path & parentPath,
const SourcePath & parentPath,
bool trustLock)>
computeLocks;
@ -391,7 +390,7 @@ LockedFlake lockFlake(
const InputPath & inputPathPrefix,
std::shared_ptr<const Node> oldNode,
const InputPath & lockRootPath,
const Path & parentPath,
const SourcePath & parentPath,
bool trustLock)
{
debug("computing lock file node '%s'", printInputPath(inputPathPrefix));
@ -518,10 +517,12 @@ LockedFlake lockFlake(
}
auto localPath(parentPath);
#if 0
// If this input is a path, recurse it down.
// This allows us to resolve path inputs relative to the current flake.
if ((*input.ref).input.getType() == "path")
localPath = absPath(*input.ref->input.getSourcePath(), parentPath);
#endif
computeLocks(
mustRefetch
? getFlake(state, oldLock->lockedRef, false, flakeCache, inputPath).inputs
@ -537,13 +538,15 @@ LockedFlake lockFlake(
throw Error("cannot update flake input '%s' in pure mode", inputPathS);
if (input.isFlake) {
Path localPath = parentPath;
auto localPath(parentPath);
FlakeRef localRef = *input.ref;
#if 0
// If this input is a path, recurse it down.
// This allows us to resolve path inputs relative to the current flake.
if (localRef.input.getType() == "path")
localPath = absPath(*input.ref->input.getSourcePath(), parentPath);
#endif
auto inputFlake = getFlake(state, localRef, useRegistries, flakeCache, inputPath);
@ -594,8 +597,8 @@ LockedFlake lockFlake(
};
computeLocks(
flake.inputs, newLockFile.root, {},
lockFlags.recreateLockFile ? nullptr : oldLockFile.root, {}, flake.flakePath, false);
flake->inputs, newLockFile.root, {},
lockFlags.recreateLockFile ? nullptr : oldLockFile.root, {}, flake->path, false);
for (auto & i : lockFlags.inputOverrides)
if (!overridesUsed.count(i.first))
@ -664,35 +667,36 @@ LockedFlake lockFlake(
/* Rewriting the lockfile changed the top-level
repo, so we should re-read it. FIXME: we could
also just clear the 'rev' field... */
auto prevLockedRef = flake.lockedRef;
auto prevLockedRef = flake->lockedRef;
FlakeCache dummyCache;
flake = getFlake(state, topRef, useRegistries, dummyCache);
flake = std::make_unique<Flake>(getFlake(state, topRef, useRegistries, dummyCache));
if (lockFlags.commitLockFile &&
flake.lockedRef.input.getRev() &&
prevLockedRef.input.getRev() != flake.lockedRef.input.getRev())
warn("committed new revision '%s'", flake.lockedRef.input.getRev()->gitRev());
flake->lockedRef.input.getRev() &&
prevLockedRef.input.getRev() != flake->lockedRef.input.getRev())
warn("committed new revision '%s'", flake->lockedRef.input.getRev()->gitRev());
/* Make sure that we picked up the change,
i.e. the tree should usually be dirty
now. Corner case: we could have reverted from a
dirty to a clean tree! */
if (flake.lockedRef.input == prevLockedRef.input
&& !flake.lockedRef.input.isLocked())
throw Error("'%s' did not change after I updated its 'flake.lock' file; is 'flake.lock' under version control?", flake.originalRef);
if (flake->lockedRef.input == prevLockedRef.input
&& !flake->lockedRef.input.isLocked())
throw Error("'%s' did not change after I updated its 'flake.lock' file; is 'flake.lock' under version control?", flake->originalRef);
}
} else
throw Error("cannot write modified lock file of flake '%s' (use '--no-write-lock-file' to ignore)", topRef);
} else {
warn("not writing modified lock file of flake '%s':\n%s", topRef, chomp(diff));
flake.forceDirty = true;
flake->forceDirty = true;
}
}
return LockedFlake { .flake = std::move(flake), .lockFile = std::move(newLockFile) };
return LockedFlake { .flake = std::move(*flake), .lockFile = std::move(newLockFile) };
} catch (Error & e) {
e.addTrace({}, "while updating the lock file of flake '%s'", flake.lockedRef.to_string());
if (flake)
e.addTrace({}, "while updating the lock file of flake '%s'", flake->lockedRef.to_string());
throw;
}
}
@ -711,7 +715,7 @@ void callFlake(EvalState & state,
emitTreeAttrs(
state,
{*lockedFlake.flake.accessor, lockedFlake.flake.flakePath},
{lockedFlake.flake.path.accessor, "/"},
lockedFlake.flake.lockedRef.input,
*vRootSrc,
false,

3
src/libexpr/flake/flake.hh
View file

@ -61,8 +61,7 @@ struct Flake
FlakeRef originalRef; // the original flake specification (by the user)
FlakeRef resolvedRef; // registry references and caching resolved to the specific underlying flake
FlakeRef lockedRef; // the specific local store result of invoking the fetcher
InputAccessor * accessor; // FIXME: must be non-null
Path flakePath;
SourcePath path;
bool forceDirty = false; // pretend that 'lockedRef' is dirty
std::optional<std::string> description;
FlakeInputs inputs;