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Delete the WPI output directory before each ainfer generation task - #8172

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smillst merged 3 commits into
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mernst:ainfer-delete-wpi-output-dir
Sep 16, 2026
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smillst merged 3 commits into
typetools:masterfrom
mernst:ainfer-delete-wpi-output-dir

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@mernst

@mernst mernst commented Sep 15, 2026 •

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Each ainfer*Generate* Gradle task renames build/whole-program-inference into the test's own directory in doLast. doLast does not run when the test fails, so a failed run leaves the directory in place, and the next generation task folds that stale output into its own results and feeds it to its validation task. The symptom is a validation failure in a test whose own generation pass succeeded.

Delete the directory in doFirst instead of relying on the rename.

Each of the seven generation tasks does so through a shared DirectoryDeleter.deleteDirectories helper, passing directories that it resolved at configuration time, because the Gradle configuration cache forbids using a project object, or calling a build script's methods, from within a task action. ainferIndexGenerateAjava already deleted its directories that way; the other six now match it. (This does not make the tasks runnable under the configuration cache: their doLast blocks still call build script methods, and unrelated tasks such as :framework:cloneTypetoolsJdk use Task.project at execution time.)

🤖 Generated with Claude Code

Each `ainfer*Generate*` Gradle task renames `build/whole-program-inference`
into the test's own directory in `doLast`.  `doLast` does not run when the
test fails, so a failed run leaves the directory in place, and the next
generation task folds that stale output into its own results and feeds it to
its validation task.

Delete the directory in `doFirst` instead of relying on the rename.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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📝 Walkthrough

Walkthrough

WPI generation tasks now resolve deletion directories during configuration and delete them in doFirst. The shared DirectoryDeleter.deleteDirectories() helper deletes each directory and throws GradleException when deletion fails. The WPI output directory is included for all listed generation tasks. The rename operation now uses wpiOutputDirectory().

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Change: Bug fix

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Actionable comments posted: 1

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Inline comments:
In `@checker/build.gradle`:
- Line 492: Make deleteWpiOutputDirectory() configuration-cache safe by
resolving the WPI output File during configuration and passing it into the
helper, rather than accessing the Project-scoped buildDir or delete(...) from
doFirst task actions. Update each WPI generation task’s doFirst call to supply
the resolved File while preserving the existing deletion behavior.

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Comment thread checker/build.gradle Outdated
mernst and others added 2 commits September 15, 2026 17:12
The Gradle configuration cache forbids a task action from using a project
object or from calling a method of the build script.  `deleteWpiOutputDirectory`
did both: it called `Project.delete()` on a path built from `buildDir`, and
each generation task called it from `doFirst`.

Resolve the directory at configuration time in `wpiOutputDirectory()`, and
delete it from a `static` method, which a task action may call.  This is the
same approach that `ainferIndexGenerateAjava` already took by hand, so that
task now calls the shared method instead.

`File.deleteDir()` reports failure by returning false rather than by throwing,
so the method throws, as `Project.delete()` did.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
…on task

The previous commit introduced a `static` helper for deleting the WPI output
directory, but six of the seven `ainfer*Generate*` tasks still deleted their
other directories with `Project.delete()` on paths built from `buildDir`, so
their `doFirst` blocks remained configuration-cache-incompatible.  Only
`ainferIndexGenerateAjava` used the safe pattern, and it did so with a copy of
the helper's body rather than by calling it.

Give all seven tasks the same shape: resolve every directory at configuration
time into a `List<File>`, and delete them from `doFirst` with one shared
`DirectoryDeleter.deleteDirectories` call.

Also, WPI writes to "build/whole-program-inference" relative to its working
directory, so resolve that path with `file()` rather than with
`layout.buildDirectory`, and use the accessor in
`copyNonannotatedToAnnotatedDirectory`, which consumes the directory.

These tasks still cannot run under the configuration cache -- their `doLast`
blocks call build script methods, and unrelated tasks such as
`:framework:cloneTypetoolsJdk` use `Task.project` at execution time -- but the
deletion code no longer adds to that.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
@smillst
smillst merged commit e405420 into typetools:master Sep 16, 2026
27 checks passed
@smillst
smillst deleted the ainfer-delete-wpi-output-dir branch September 16, 2026 15:54
mernst added a commit to mernst/checker-framework that referenced this pull request Sep 16, 2026
…-insert-irrelevant-3

Upstream merged the ainfer-relevance tests (typetools#8172, typetools#8176) in their
pre-fix state, which records inference writing annotations on irrelevant
types.  Keep upstream's test infrastructure and take this branch's goal
files and comments, which record the fixed behavior.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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