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#!/bin/bash
# Check out all our submodules, but more quickly than using git by using one of
# our custom scripts
set -o errexit
set -o pipefail
set -o nounset
if [ ! -d ".git" ]; then
echo "Error: This must run in the root of the repository"
exit 1
fi
ci_dir=$(cd $(dirname $0) && pwd)/..
. "$ci_dir/shared.sh"
# On the beta channel we'll be automatically calculating the prerelease version
# via the git history, so unshallow our shallow clone from CI.
if [ "$(releaseChannel)" = "beta" ]; then
git fetch origin --unshallow beta master
fi
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"
# On Windows, the default behavior is to emulate symlinks by copying
# files. However, that ends up being order-dependent while extracting,
# which can cause a failure if the symlink comes first. This env var
# causes tar to use real symlinks instead, which are allowed to dangle.
export MSYS=winsymlinks:nativestrict
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)
# shellcheck disable=SC2068
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/$commit.tar.gz" &
bg_pids[${i}]=$!
continue
else
use_git="$use_git $module"
fi
done
retry sh -c "git submodule deinit -f $use_git && \
git submodule sync && \
git submodule update -j 16 --init --recursive --depth 1 $use_git"
STATUS=0
for pid in ${bg_pids[*]}
do
wait $pid || STATUS=1
done
exit ${STATUS}
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