rust/src/ci/init_repo.sh
Alex Crichton c7d285b781 Remove src/llvm-emscripten submodule
With #65251 landed there's no need to build two LLVM backends and ship
them with rustc, every target we have now uses the same LLVM backend!

This removes the `src/llvm-emscripten` submodule and additionally
removes all support from rustbuild for building the emscripten LLVM
backend. Multiple codegen backend support is left in place for now, and
this is intended to be an easy 10-15 minute win on CI times by avoiding
having to build LLVM twice.
2019-10-21 13:05:31 -07:00

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#!/usr/bin/env bash
# FIXME(61301): we need to debug spurious failures with this on Windows on
# Azure, so let's print more information in the logs.
set -x
set -o errexit
set -o pipefail
set -o nounset
ci_dir=$(cd $(dirname $0) && pwd)
. "$ci_dir/shared.sh"
REPO_DIR="$1"
CACHE_DIR="$2"
cache_src_dir="$CACHE_DIR/src"
if [ ! -d "$REPO_DIR" -o ! -d "$REPO_DIR/.git" ]; then
echo "Error: $REPO_DIR does not exist or is not a git repo"
exit 1
fi
cd $REPO_DIR
if [ ! -d "$CACHE_DIR" ]; then
echo "Error: $CACHE_DIR does not exist or is not an absolute path"
exit 1
fi
rm -rf "$CACHE_DIR"
mkdir "$CACHE_DIR"
# On the beta channel we'll be automatically calculating the prerelease version
# via the git history, so unshallow our shallow clone from CI.
if grep -q RUST_RELEASE_CHANNEL=beta src/ci/run.sh; then
git fetch origin --unshallow beta master
fi
# Duplicated in docker/dist-various-2/shared.sh
function fetch_github_commit_archive {
local module=$1
local cached="download-${module//\//-}.tar.gz"
retry sh -c "rm -f $cached && \
curl -f -sSL -o $cached $2"
mkdir $module
touch "$module/.git"
tar -C $module --strip-components=1 -xf $cached
rm $cached
}
included="src/llvm-project src/doc/book src/doc/rust-by-example"
modules="$(git config --file .gitmodules --get-regexp '\.path$' | cut -d' ' -f2)"
modules=($modules)
use_git=""
urls="$(git config --file .gitmodules --get-regexp '\.url$' | cut -d' ' -f2)"
urls=($urls)
for i in ${!modules[@]}; do
module=${modules[$i]}
if [[ " $included " = *" $module "* ]]; then
commit="$(git ls-tree HEAD $module | awk '{print $3}')"
git rm $module
url=${urls[$i]}
url=${url/\.git/}
fetch_github_commit_archive $module "$url/archive/$commit.tar.gz" &
continue
else
use_git="$use_git $module"
fi
done
retry sh -c "git submodule deinit -f $use_git && \
git submodule sync && \
git submodule update -j 16 --init --recursive $use_git"
wait