2 # Copyright 2016 The Rust Project Developers. See the COPYRIGHT
3 # file at the top-level directory of this distribution and at
4 # http://rust-lang.org/COPYRIGHT.
6 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
7 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
8 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
9 # option. This file may not be copied, modified, or distributed
10 # except according to those terms.
18 ci_dir=$(cd $(dirname $0) && pwd)
24 cache_src_dir="$CACHE_DIR/src"
25 # If the layout of the cache directory changes, bump the number here
26 # (and anywhere else this file is referenced) so the cache is wiped
27 cache_valid_file="$CACHE_DIR/cache_valid1"
29 if [ ! -d "$REPO_DIR" -o ! -d "$REPO_DIR/.git" ]; then
30 echo "Error: $REPO_DIR does not exist or is not a git repo"
34 if [ ! -d "$CACHE_DIR" ]; then
35 echo "Error: $CACHE_DIR does not exist or is not an absolute path"
39 # Wipe the cache if it's not valid, or mark it as invalid while we update it
40 if [ ! -f "$cache_valid_file" ]; then
41 rm -rf "$CACHE_DIR" && mkdir "$CACHE_DIR"
43 rm "$cache_valid_file"
46 # Update the cache (a pristine copy of the rust source master)
47 if [ ! -d "$cache_src_dir/.git" ]; then
48 retry sh -c "rm -rf $cache_src_dir && mkdir -p $cache_src_dir && \
49 git clone https://github.com/rust-lang/rust.git $cache_src_dir"
51 retry sh -c "cd $cache_src_dir && git reset --hard && git pull"
52 retry sh -c "cd $cache_src_dir && \
53 git submodule deinit -f . && git submodule sync && git submodule update --init"
55 # Cache was updated without errors, mark it as valid
56 touch "$cache_valid_file"
58 # Update the submodules of the repo we're in, using the pristine repo as
59 # a cache for any object files
60 # No, `git submodule foreach` won't work:
61 # http://stackoverflow.com/questions/12641469/list-submodules-in-a-git-repository
62 modules="$(git config --file .gitmodules --get-regexp '\.path$' | cut -d' ' -f2)"
63 for module in $modules; do
64 if [ ! -d "$cache_src_dir/$module" ]; then
65 echo "WARNING: $module not found in pristine repo"
66 retry sh -c "git submodule deinit -f $module && git submodule update --init $module"
69 retry sh -c "git submodule deinit -f $module && \
70 git submodule update --init --reference $cache_src_dir/$module $module"