Files
electron/.github
Samuel Attard 5523130c92 ci: build a patched siso for Windows builds (#51077)
* ci: build a patched siso for Windows builds

The Windows Chromium builds intermittently fail during manifest load
with 'The parameter is incorrect.' (ERROR_INVALID_PARAMETER) out of
bindflt.sys. Root cause is a handle-relative NtCreateFile race in
siso/toolsupport/ninjautil/file_parser.go, which opens each subninja
twice — once in the outer goroutine and once more per chunk for
ReadAt. (*os.File).ReadAt is documented as safe for concurrent use,
so the extra open is redundant and removing it both halves the
CreateFileW calls per subninja and sidesteps the race.

Add a new build-siso-windows job on ubuntu-latest (runs in parallel
with checkout-windows) that:

- reads chromium_version from DEPS and pulls the matching siso_version
  SHA from the Chromium mirror's DEPS at that ref
- shallow-clones chromium.googlesource.com/build at that SHA
- applies the in-tree patches under .github/siso-patches/ via git am
- cross-compiles siso.exe for windows/amd64
- caches the binary keyed on siso SHA + sha256 of the patches, so
  subsequent runs hit the cache and skip the clone/patch/build steps
- uploads the result as a siso-windows-amd64 artifact

The Windows build jobs now depend on build-siso-windows, download the
artifact into $RUNNER_TEMP/siso, and export SISO_PATH, which
depot_tools/siso.py already honors. Mirrored into windows-publish.yml
and the regenerated pipeline-segment-electron-publish.yml so release
builds pick it up too.

Notes: none

* ci: extract siso build into a reusable workflow segment

Move the build-siso-windows job body into
pipeline-segment-build-siso-windows.yml and call it from both build.yml
and windows-publish.yml via workflow_call. Also pin actions/cache to
v5.0.5 and add version comments next to the action SHAs introduced by
this change.
2026-04-16 12:40:33 -04:00
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