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bootstrap: add error messages re shallow history

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Exit with an error if we can't find a commit hash for downloading
LLVM or rustc snapshots.
This commit is contained in:
Taylor Yu 2021-10-07 18:20:38 -05:00
parent 6ff72045de
commit 8e467421de
1 changed files with 12 additions and 0 deletions
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12
src/bootstrap/bootstrap.py
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@ -540,6 +540,12 @@ class RustBuild(object):
unpack(tarball, tarball_suffix, self.bin_root(stage0), match=pattern, verbose=self.verbose)
def _download_ci_llvm(self, llvm_sha, llvm_assertions):
if not llvm_sha:
print("error: could not find commit hash for downloading LLVM")
print("help: maybe your repository history is too shallow?")
print("help: consider disabling `download-ci-llvm`")
print("help: or fetch enough history to include one upstream commit")
exit(1)
cache_prefix = "llvm-{}-{}".format(llvm_sha, llvm_assertions)
cache_dst = os.path.join(self.build_dir, "cache")
rustc_cache = os.path.join(cache_dst, cache_prefix)
@ -688,6 +694,12 @@ class RustBuild(object):
"--first-parent", "HEAD"
]
commit = subprocess.check_output(merge_base, universal_newlines=True).strip()
if not commit:
print("error: could not find commit hash for downloading rustc")
print("help: maybe your repository history is too shallow?")
print("help: consider disabling `download-rustc`")
print("help: or fetch enough history to include one upstream commit")
exit(1)
# Warn if there were changes to the compiler or standard library since the ancestor commit.
status = subprocess.call(["git", "diff-index", "--quiet", commit, "--", compiler, library])