Fix JIT rolling build issue with non-JIT changes #64480
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When uploading a JIT rolling build, use the git hash of the most recent JIT change, not the git hash that was actually built. This handles the case where a JIT change kicked off an AzDO pipeline, but the pipeline didn't start until after one or more additional changes were merged. The AzDO pipelines appear to fetch with `-depth=20`, which should provide enough history for almost any case. Fixes dotnet#64392
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Tagging subscribers to this area: @JulieLeeMSFT Issue DetailsWhen uploading a JIT rolling build, use the git hash of the most recent The AzDO pipelines appear to fetch with Fixes #64392
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I tested the "walk back" logic locally with various git hashes. I don't want to spend the effort testing it in the CI, since that would require very complicated setup including merging JIT and non-JIT changes almost concurrently. We'll just see how it goes when it's live. |
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| # Enumerate the last change, starting with the jit_git_hash, that included JIT changes. | ||
| command = [ "git", "log", "--pretty=format:%H", jit_git_hash, "-1", "--", "src/coreclr/jit/*" ] | ||
| print("Invoking: {}".format(" ".join(command))) | ||
| proc = subprocess.Popen(command, stdout=subprocess.PIPE) |
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why not use run_command from jitutil.py`?
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I copied/modified this code from elsewhere in jitrollingbuild.py. Looks like jitrollingbuild.py never uses run_command. In fact, it currently doesn't use jitutil at all. That might be a worthwhile (separate) cleanup at some point.
| "Unable to set git_hash") | ||
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| coreclr_args.verify(args, | ||
| "use_latest_jit_change", |
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Why is this even an option? Why not do this way always? When will we ever pass use_latest_jit_change=False?
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When I'm testing "upload" locally, I often give it non-actual hashes, so I want that to still work.
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When uploading a JIT rolling build, use the git hash of the most recent
JIT change, not the git hash that was actually built. This handles the case
where a JIT change kicked off an AzDO pipeline, but the pipeline didn't start
until after one or more additional changes were merged.
The AzDO pipelines appear to fetch with
-depth=20, which should provideenough history for almost any case.
Fixes #64392