xx-cargo

#!/usr/bin/env sh

set -e

execSilent() {
  if ! cmdout=$("$@" 2>&1); then
    echo "$cmdout" >&2
    exit 1
  fi
}

if [ -z "$XX_CARGO_NOLOCK" ]; then
  # readlink -f in ash can not resolve symlinks from deep workdir
  cd / >/dev/null
  if [ -L /var/lock ] && [ ! -e "$(readlink -f /var/lock)" ]; then
    mkdir -p "$(readlink -f /var/lock)"
  elif [ ! -d /var/lock ]; then
    mkdir -p /var/lock
  fi
  cd - >/dev/null
  lock="/var/lock/xx-cargo"
  exec 9>$lock
  flock -x 9
  export XX_CARGO_NOLOCK=1
fi

if [ -n "$XX_DEBUG_CARGO" ]; then
  set -x
fi

setuponly=
printtarget=
n=$#
for a in "$@"; do
  if [ $# = $n ]; then set --; fi
  case "$a" in
    "--setup-target-triple")
      setuponly=1
      ;;
    "--print-target-triple")
      printtarget=1
      ;;
    *)
      set -- "$@" "$a"
      ;;
  esac
done

done_file="/.xx-cargo.$(xx-info arch)"

if [ -z "$RISCV64_TARGET_ARCH" ]; then
  export RISCV64_TARGET_ARCH=riscv64gc
fi
if [ -z "$ARM_TARGET_ARCH" ]; then
  export ARM_TARGET_ARCH=armv7
fi

rustup=
if which rustup >/dev/null 2>&1; then
  rustup=1
fi

vendor=$XX_VENDOR
if [ -n "$rustup" ] || [ ! -f /etc/alpine-release ]; then
  export XX_VENDOR="unknown"
fi

if [ ! -f "$done_file" ]; then
  xx-clang --setup-target-triple
  if [ ! -d "$(rustc --print sysroot)/lib/rustlib/$(xx-info)" ]; then
    if [ -n "$rustup" ]; then
      execSilent rustup target add "$(xx-info)"
    elif [ -f /etc/alpine-release ]; then
      # XX_VENDOR overrided to match the distrib one to install packages
      XX_VENDOR=$vendor execSilent xx-apk add rust-stdlib
    else
      # XX_VENDOR overrided to match the distrib one to install packages
      XX_VENDOR=$vendor execSilent xx-apt-get install -y libstd-rust-dev
    fi
  fi
  touch "$done_file"
fi

export "CARGO_TARGET_$(xx-info | tr '[:lower:]' '[:upper:]' | tr - _)_LINKER=$(xx-info)-clang"
if [ -n "$XX_RUSTFLAGS" ]; then
  export "CARGO_TARGET_$(xx-info | tr '[:lower:]' '[:upper:]' | tr - _)_RUSTFLAGS=$XX_RUSTFLAGS"
fi
export "CC_$(xx-info | tr - _)=$(xx-info)-clang"

if which "qemu-$(RISCV64_TARGET_ARCH='' ARM_TARGET_ARCH='' xx-info march)" >/dev/null 2>&1; then
  export "CARGO_TARGET_$(xx-info | tr '[:lower:]' '[:upper:]' | tr - _)_RUNNER=qemu-$(RISCV64_TARGET_ARCH='' ARM_TARGET_ARCH='' xx-info march)"
  if [ -f /etc/alpine-release ]; then
    export "QEMU_LD_PREFIX=/$(RISCV64_TARGET_ARCH='' ARM_TARGET_ARCH='' xx-info)/"
  else
    export "QEMU_LD_PREFIX=/lib/$(RISCV64_TARGET_ARCH='' ARM_TARGET_ARCH='' XX_VENDOR='' xx-info)/"
  fi
fi

if command -v "$(xx-info)-pkg-config" >/dev/null 2>/dev/null; then
  export "PKG_CONFIG=$(xx-info)-pkg-config"
fi

if [ -n "$printtarget" ]; then
  xx-info
  exit 0
fi

if [ -z "$setuponly" ]; then
  exec cargo "$@" --target="$(xx-info)"
fi