Two wall-clock optimizations on the JDK install path.
`tc.cacheDir` recursively copies the extracted tree into RUNNER_TOOL_CACHE,
so a 200-600MB JDK is written to disk twice. The extraction directory and
the tool-cache normally share a filesystem, so `cacheJdkDir` renames it
instead and writes the `.complete` marker itself, mirroring the destination
layout `tc.cacheDir` produces. It falls back to the copy when the tool-cache
location is unknown, when the source is not a real directory (a symlinked
source would otherwise leave a dangling entry once RUNNER_TEMP is cleaned),
or when the rename fails - a cross-device tool-cache, or anti-virus holding
a handle on Windows. The rename is atomic, so the source is still intact
for the fallback.
Extraction now uses `pigz` for tarballs when the runner provides it, and
Windows zips go through the bundled `tar.exe` rather than `tc.extractZip`,
which shells out to PowerShell's much slower `Expand-Archive`. Both fall
back to the stock extraction and clean up the abandoned directory first.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: b76d8cb0-f629-46e1-bf9a-ffde06948644
* Add JDK caching
Cache resolved JDK tool-cache entries by exact platform and release identity, with a default-on cache-jdk input and explicit opt-out.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Apply batched suggestions from code review
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
* Fix JDK cache CI validation
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Update brace-expansion security fix
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Refresh brace-expansion license metadata
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Refine JDK cache semantics
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Refine JDK cache documentation
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Simplify JDK cache identity
Use one normalized runner OS dimension, reset the internal cache key schema for the unreleased feature, and align documentation, tests, and bundles.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Align JDK cache OS identity
Use the established RUNNER_OS value directly and retain process.platform only as a non-Actions fallback.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* Harden JDK cache saves and document tool-cache reuse
Bind each JDK cache key to the installation identity it was computed for,
keep post-job saves best-effort per entry, and state the real reuse and
verification guarantee in the documentation.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* docs: restructure README caching section
Rename '## Caching dependencies' to '## Caching' and add a what-gets-cached
overview table covering the dependency, wrapper, and JDK caches. Lead with the
common 'cache: maven' example and the dependency-cache material, and demote JDK
caching into its own subsection.
Also corrects the IMPORTANT callout, which implied JDK caching required an
explicit opt-in; it is enabled implicitly whenever 'cache' is set.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* docs: fix caching documentation defects
- Remove pull-request framing that compared behavior to `main`; state the
tool-cache and `jdkfile` behavior directly and unconditionally.
- Clarify that the JDK cache is a separate cache *entry* from the dependency
and wrapper caches, while its *enablement* is coupled to `cache`, so the
opening paragraph agrees with the enablement matrix.
- Cite the actions/setup-java-benchmarks repository instead of an open PR and
a self-referential PR comment, keeping the measured figures and caveats.
- Keep the `cache`/`cache-jdk` matrix only in docs/advanced-usage.md and
summarize the rules in prose in README.md to avoid divergence.
- Describe the guarantee that a cache key is only saved with the installation
it was computed for, instead of documenting inode/size/timestamp internals.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
* docs: add V6 what's new entry for JDK caching
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: e2755464-4e83-47b6-ba71-731bb481b418
---------
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Copilot-Session: e2755464-4e83-47b6-ba71-731bb481b418
* Optimize Temurin tool-cache fast path
- Lazy-load distribution installers so only the selected distro module is initialized
- Defer cache feature/cache module loading until cache input is provided
- Start cache restore early and await it safely alongside Java setup flow
- Update orchestration and lazy-loading tests; regenerate dist artifacts
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: cc2c0256-c55e-4a35-a584-5bed7e8b11ad
* Address PR review comments
- Lazy-load cache save in cleanup path so no-cache runs avoid cache module init in post action
- Stage dist/setup/package.json in release script for chunked setup bundle completeness
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: cc2c0256-c55e-4a35-a584-5bed7e8b11ad
* Fix CodeQL comment tag filter finding
Patch is-unsafe's XML comment-close detector during builds so generated bundles recognize both HTML comment end forms and satisfy CodeQL until the dependency publishes a fix.
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 277302b1-aa95-4012-817b-9752cdaee14e
* Rebuild generated dist bundles
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: cc2c0256-c55e-4a35-a584-5bed7e8b11ad
---------
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: cc2c0256-c55e-4a35-a584-5bed7e8b11ad
Copilot-Session: 277302b1-aa95-4012-817b-9752cdaee14e
