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#!/usr/bin/env bash
set -e
TOOLCHAIN=${TOOLCHAIN:-$(date +%Y-%m-%d)}
function check_git_fixed_subtree() {
if [[ ! -e ./git-fixed-subtree.sh ]]; then
echo "Missing git-fixed-subtree.sh. Please run the following commands to download it:"
echo "curl --proto '=https' --tlsv1.2 -sSf https://raw.githubusercontent.com/bjorn3/git/tqc-subtree-portable/contrib/subtree/git-subtree.sh -o git-fixed-subtree.sh"
echo "chmod u+x git-fixed-subtree.sh"
exit 1
fi
if [[ ! -x ./git-fixed-subtree.sh ]]; then
echo "git-fixed-subtree.sh is not executable. Please run the following command to make it executable:"
echo "chmod u+x git-fixed-subtree.sh"
exit 1
fi
}
case $1 in
"prepare")
echo "=> Installing new nightly"
rustup toolchain install --profile minimal "nightly-${TOOLCHAIN}" # Sanity check to see if the nightly exists
sed -i "s/\"nightly-.*\"/\"nightly-${TOOLCHAIN}\"/" rust-toolchain
rustup component add rustfmt || true
echo "=> Uninstalling all old nightlies"
for nightly in $(rustup toolchain list | grep nightly | grep -v "$TOOLCHAIN" | grep -v nightly-x86_64); do
rustup toolchain uninstall "$nightly"
done
./clean_all.sh
./y.sh prepare
;;
"commit")
git add rust-toolchain
git commit -m "Rustup to $(rustc -V)"
;;
"push")
check_git_fixed_subtree
cg_clif=$(pwd)
pushd ../rust
git pull origin master
branch=sync_cg_clif-$(date +%Y-%m-%d)
git checkout -b "$branch"
"$cg_clif/git-fixed-subtree.sh" pull --prefix=compiler/rustc_codegen_cranelift/ https://github.com/bjorn3/rustc_codegen_cranelift.git master
git push -u my "$branch"
# immediately merge the merge commit into cg_clif to prevent merge conflicts when syncing
# from rust-lang/rust later
"$cg_clif/git-fixed-subtree.sh" push --prefix=compiler/rustc_codegen_cranelift/ "$cg_clif" sync_from_rust
popd
git merge sync_from_rust
;;
"pull")
check_git_fixed_subtree
RUST_VERS=$(curl "https://static.rust-lang.org/dist/$TOOLCHAIN/channel-rust-nightly-git-commit-hash.txt")
echo "Pulling $RUST_VERS ($TOOLCHAIN)"
cg_clif=$(pwd)
pushd ../rust
git fetch origin master
git checkout "$RUST_VERS"
"$cg_clif/git-fixed-subtree.sh" push --prefix=compiler/rustc_codegen_cranelift/ "$cg_clif" sync_from_rust
popd
git merge sync_from_rust -m "Sync from rust $RUST_VERS"
git branch -d sync_from_rust
;;
*)
echo "Unknown command '$1'"
echo "Usage: ./rustup.sh prepare|commit"
;;
esac
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