git version(s) for V8 CI

Bắt đầu với deps/v8/DEPS và tools/v8/fetch_deps.py, sau đó so sánh các phiên bản git và hành vi của depot_tools trong các CI job được tham chiếu của Ubuntu 24.04, RHEL 8 ppc64le và RHEL 8 s390x. Phần hoàn tất cần bao gồm một kế hoạch cụ thể cho các phiên bản git và hệ điều hành CI tương thích, đồng thời xác định và xác minh các CI job V8 bị ảnh hưởng.

Originally posted by @richardlau in #4462

From @aduh95,

FYI I've tried https://github.com/nodejs/node/pull/66070 with https://github.com/nodejs/node/pull/65891 in https://ci.nodejs.org/job/node-test-commit-v8-linux/7380/nodes=benchmark-ubuntu2404-intel-64,v8test=v8test/, but it shows

Error: Command 'git -c color.ui=never checkout --quiet --end-of-options 25c29f04c9127e1ca09e6c1181f74850aa7f118b' returned non-zero  exit status 1 in ./v8/third_party/libpfm4
error: pathspec '--end-of-options' did not match any file(s) known to git

Would that indicate an incompatible version of git? --end-of-options was added in https://gitlab.com/git-scm/git/-/blob/HEAD/Documentation/RelNotes/2.44.0.adoc

AFAICT use of --end-of-options has come from https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/8401307. On our V8 CI this is causing the Ubuntu 24.04 x64 build to fail but the RHEL 8 ppc64le and s390x builds still work, which appear to be due to the version of git installed.

From the CI I ran for https://github.com/nodejs/node/pull/66070, which was before depot_tools adopted --end-of-options,

• https://ci.nodejs.org/job/node-test-commit-v8-linux/7377/nodes=benchmark-ubuntu2404-intel-64,v8test=v8test/consoleFull

17:55:55 git update is recommended.
17:55:55 Installed git version is 2.43.0;
17:55:55 depot_tools recommends version 2.46.0 or later.
17:55:55 Disable this warning by setting the GCLIENT_SUPPRESS_GIT_VERSION_WARNING
17:55:55 environment variable to 1.

• https://ci.nodejs.org/job/node-test-commit-v8-linux/7377/nodes=rhel8-s390x,v8test=v8test/consoleFull (git version is the same on RHEL 8 ppc64le)

17:58:00 git update is recommended.
17:58:00 Installed git version is 2.43.7;
17:58:00 depot_tools recommends version 2.46.0 or later.
17:58:00 Disable this warning by setting the GCLIENT_SUPPRESS_GIT_VERSION_WARNING
17:58:00 environment variable to 1.

so the version of git on Ubuntu 24.04 is slightly older than the one in RHEL 8, but both are less than the depot_tools recommended version.

To workaround the immediate problem the job is now pinning the version of depot_tools in line with what is in deps/v8/DEPS (or any override we set in tools/v8/fetch_deps.py) but this only means delaying picking up newer versions of depot_tools until Node.js attempts to pick up a newer version of V8 which has rolled depot_tools forward.

We might need to start planning to shift the V8 CI:

• for x64 from Ubuntu 24.04 to 26.04.
• for ppc64le/s390x from RHEL 8 to RHEL 9 (or even 10).