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Revert "Revert "Move llvm submodule updates to rustbuild""

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This reverts commit ad308264a3.
This commit is contained in:
Joshua Nelson 2021-06-04 22:17:01 -04:00
parent c4c2ab57a4
commit f4210fc12f
4 changed files with 98 additions and 13 deletions
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16
src/bootstrap/bootstrap.py
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@ -991,28 +991,20 @@ class RustBuild(object):
).decode(default_encoding).splitlines()]
filtered_submodules = []
submodules_names = []
llvm_checked_out = os.path.exists(os.path.join(self.rust_root, "src/llvm-project/.git"))
external_llvm_provided = self.get_toml('llvm-config') or self.downloading_llvm()
llvm_needed = not self.get_toml('codegen-backends', 'rust') \
or "llvm" in self.get_toml('codegen-backends', 'rust')
for module in submodules:
# This is handled by native::Llvm in rustbuild, not here
if module.endswith("llvm-project"):
# Don't sync the llvm-project submodule if an external LLVM was
# provided, if we are downloading LLVM or if the LLVM backend is
# not being built. Also, if the submodule has been initialized
# already, sync it anyways so that it doesn't mess up contributor
# pull requests.
if external_llvm_provided or not llvm_needed:
if self.get_toml('lld') != 'true' and not llvm_checked_out:
continue
continue
check = self.check_submodule(module, slow_submodules)
filtered_submodules.append((module, check))
submodules_names.append(module)
recorded = subprocess.Popen(["git", "ls-tree", "HEAD"] + submodules_names,
cwd=self.rust_root, stdout=subprocess.PIPE)
recorded = recorded.communicate()[0].decode(default_encoding).strip().splitlines()
# { filename: hash }
recorded_submodules = {}
for data in recorded:
# [mode, kind, hash, filename]
data = data.split()
recorded_submodules[data[3]] = data[2]
for module in filtered_submodules: