install-rust.sh

#!/usr/bin/env sh
# This is intended to be used in CI only.

set -ex

echo "Setup toolchain"
toolchain=
if [ -n "$TOOLCHAIN" ]; then
  toolchain=$TOOLCHAIN
else
  # Pin the nightly version as newer nightly versions break CI,
  # https://github.com/rust-lang/rust/issues/103673 contains related information.
  case "$TARGET" in
    *android*) toolchain=nightly-2022-10-09;;
    *) toolchain=nightly;;
  esac
fi
if [ "$OS" = "windows" ]; then
  : "${TARGET?The TARGET environment variable must be set.}"
  rustup set profile minimal
  rustup update --force $toolchain-"$TARGET"
  rustup default $toolchain-"$TARGET"
else
  rustup set profile minimal
  rustup update --force $toolchain
  rustup default $toolchain
fi

if [ -n "$TARGET" ]; then
  echo "Install target"
  rustup target add "$TARGET"
fi

if [ -n "$INSTALL_RUST_SRC" ]; then
  echo "Install rust-src"
  rustup component add rust-src
fi

if [ "$OS" = "windows" ]; then
  if [ "$ARCH_BITS" = "i686" ]; then
    echo "Install MinGW32"
    choco install mingw --x86 --force
  fi

  echo "Find GCC libraries"
  gcc -print-search-dirs
  /usr/bin/find "C:\ProgramData\Chocolatey" -name "crt2*"
  /usr/bin/find "C:\ProgramData\Chocolatey" -name "dllcrt2*"
  /usr/bin/find "C:\ProgramData\Chocolatey" -name "libmsvcrt*"

  if [ -n "$ARCH_BITS" ]; then
    echo "Fix MinGW"
    for i in crt2.o dllcrt2.o libmingwex.a libmsvcrt.a ; do
      cp -f "/C/ProgramData/Chocolatey/lib/mingw/tools/install/mingw$ARCH_BITS/$ARCH-w64-mingw32/lib/$i" "$(rustc --print sysroot)/lib/rustlib/$TARGET/lib"
    done
  fi
fi

echo "Query rust and cargo versions"
command -v rustc
command -v cargo
command -v rustup
rustc -Vv
cargo -V
rustup -Vv
rustup show

echo "Generate lockfile"
N=5
n=0
until [ $n -ge $N ]
do
  if cargo generate-lockfile; then
    break
  fi
  n=$((n+1))
  sleep 1
done