hphp/hack/opam_setup.sh

   1 #!/bin/bash
   2
   3 # Copyright (c) 2017, Facebook, Inc.
   4 # All rights reserved.
   5 #
   6 # This source code is licensed under the MIT license found in the
   7 # LICENSE file in the "hack" directory of this source tree.
   8
   9 set -euf
  10
  11 unset DUNE_BUILD_DIR
  12 OCAML_PREFIX=$(dirname "$1")
  13 SOURCE_ROOT="$2"
  14 BUILD_ROOT="${3:-"${SOURCE_ROOT}/_build"}"
  15 export PATH="$OCAML_PREFIX:$PATH"
  16 # detect if we are building inside FB by checking a specific dune file
  17 if [ -e "$SOURCE_ROOT/src/facebook/dune" ]; then
  18   OPAMROOT="$SOURCE_ROOT/facebook/opam"
  19 else
  20   OPAMROOT="${BUILD_ROOT}/opam"
  21 fi
  22 export OPAMROOT="$OPAMROOT"
  23 mkdir -p "$OPAMROOT"
  24 export OPAMYES="1"
  25
  26 # shellcheck disable=SC1090
  27 source "$SOURCE_ROOT/opam_helpers.sh"
  28 # shellcheck disable=SC1090
  29 source "$SOURCE_ROOT/ocaml_deps_data.sh"
  30
  31 # Shamelessly copied from
  32 # https://github.com/facebook/infer/blob/master/scripts/opam_utils.sh
  33 # Many thanks to the infer team :D
  34
  35 # assumes opam is available and initialized
  36 opam_switch_create_if_needed () {
  37     local name=$1
  38     local switch=$2
  39     local switch_exists=no
  40     for installed_switch in $(opam switch list --short); do
  41         if [ "$installed_switch" == "$name" ]; then
  42             switch_exists=yes
  43             break
  44         fi
  45     done
  46     if [ "$switch_exists" = "no" ]; then
  47         opam switch create "$name" "$switch"
  48         eval "$(opam env)"
  49     fi
  50 }
  51
  52 opam_require_version_2
  53
  54 # End of shame
  55
  56
  57 HACK_OPAM_SWITCH="${HACK_OCAML_VERSION}"
  58 HACK_OPAM_DEFAULT_NAME="hack-switch"
  59 HACK_OPAM_NAME=${HACK_OPAM_NAME:-$HACK_OPAM_DEFAULT_NAME}
  60 SKIP_MINI_REPO=${SKIP_MINI_REPO:-0}
  61 OCAML_PATCH=${OCAML_PATCH:-""}
  62
  63 # building the right compiler name, depending on the version.
  64 # It might be ocaml-base-compiler.VERSION
  65 # or ocaml-variants.VERSION+OPTION
  66 OCAML_COMPILER_NAME="ocaml"
  67 OCAML_BASE_NAME="ocaml"
  68
  69 if [[ "$HACK_OCAML_VERSION" == *"+"* ]]; then
  70   OCAML_BASE_NAME="$OCAML_BASE_NAME-variants"
  71   OCAML_COMPILER_NAME="$OCAML_BASE_NAME.$HACK_OCAML_VERSION"
  72 else
  73   OCAML_BASE_NAME="$OCAML_BASE_NAME-base-compiler"
  74   OCAML_COMPILER_NAME="$OCAML_BASE_NAME.$HACK_OCAML_VERSION"
  75 fi
  76
  77 if [[ "${SKIP_MINI_REPO}" -eq 1 ]]; then
  78   echo "SKIP_MINI_REPO is set."
  79   echo "This setup will fetch from the internet."
  80   echo "Make sure you know what you are doing."
  81   export http_proxy=http://fwdproxy:8080
  82   export https_proxy=http://fwdproxy:8080
  83 fi
  84
  85 MINI_REPO_FETCH_SCRIPT="${SOURCE_ROOT}/facebook/fetch_opam2_repo_hack.sh"
  86
  87 # OSS does not provide bubblewrap yet so we disable it
  88 if [[ -f "${MINI_REPO_FETCH_SCRIPT}" && "${SKIP_MINI_REPO}" -eq 0 ]]; then
  89   MINI_REPO_DIR="$("${MINI_REPO_FETCH_SCRIPT}")"
  90   MINI_REPO_TARBALL="${MINI_REPO_DIR}.tar.gz"
  91   rm -rf "$MINI_REPO_DIR" ||:
  92   tar xzf "$MINI_REPO_TARBALL" -C "$SOURCE_ROOT/facebook"
  93   opam init --disable-sandboxing --reinit offline_clone "$MINI_REPO_DIR" --no-setup --bare
  94
  95   if [ -n "$OCAML_PATCH" ]; then
  96     # Patching ocaml base compiler so we can pass it CFLAGS/LDFLAGS
  97     # The goal is to make it use the right glibc, not the system one
  98     opam switch create "$HACK_OPAM_NAME" --empty
  99     pushd "$OPAMROOT/repo/offline_clone" || exit 1
 100     mkdir -p base-compiler-source
 101     cd base-compiler-source
 102     opam source "$OCAML_COMPILER_NAME"
 103     cd "$OCAML_COMPILER_NAME"
 104     patchname="$OCAML_COMPILER_NAME.patch"
 105     cp "$OCAML_PATCH" "$patchname"
 106     patch < "$patchname"
 107
 108     opam pin "$OCAML_COMPILER_NAME" .
 109     popd  || exit 1
 110     opam switch set-base "$OCAML_BASE_NAME"
 111   fi
 112 else
 113   opam init --disable-sandboxing --reinit --no-setup --bare
 114 fi
 115
 116 opam_switch_create_if_needed "$HACK_OPAM_NAME" "$HACK_OPAM_SWITCH"
 117 opam switch "$HACK_OPAM_NAME"
 118 eval "$(opam env)"
 119
 120 opam install "${HACK_OPAM_DEPS[@]}"
 121
 122 dune_version=$(dune --version)
 123 echo ""
 124 echo "opam switch correctly installed at $OPAMROOT"
 125 echo "dune version is $dune_version"