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Fix commit detected when using download-rustc #82740

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Mar 4, 2021
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Fix commit detected when using download-rustc #82740

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5 changes: 2 additions & 3 deletions src/bootstrap/bootstrap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -647,9 +647,8 @@ def maybe_download_rustc(self):
compiler = "{}/compiler/".format(top_level)

# Look for a version to compare to based on the current commit.
# Ideally this would just use `merge-base`, but on beta and stable branches that wouldn't
# come up with any commits, so hack it and use `author=bors` instead.
merge_base = ["git", "log", "--author=bors", "--pretty=%H", "-n1", "--", compiler]
# Only commits merged by bors will have CI artifacts.
merge_base = ["git", "log", "--author=bors", "--pretty=%H", "-n1"]
commit = subprocess.check_output(merge_base, universal_newlines=True).strip()

# Warn if there were changes to the compiler since the ancestor commit.
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