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      1 #!/bin/bash
      2 set -e
      3 
      4 # Copyright 2017 Google Inc. All rights reserved.
      5 #
      6 # Licensed under the Apache License, Version 2.0 (the "License");
      7 # you may not use this file except in compliance with the License.
      8 # You may obtain a copy of the License at
      9 #
     10 #     http://www.apache.org/licenses/LICENSE-2.0
     11 #
     12 # Unless required by applicable law or agreed to in writing, software
     13 # distributed under the License is distributed on an "AS IS" BASIS,
     14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15 # See the License for the specific language governing permissions and
     16 # limitations under the License.
     17 
     18 #mounts the components of soong into a directory structure that Go tools and editors expect
     19 
     20 #move to the script's directory
     21 cd "$(dirname $0)"
     22 SCRIPT_PATH="$PWD"
     23 
     24 #find the root of the Repo checkout
     25 cd "${SCRIPT_PATH}"/../../..
     26 ANDROID_PATH="${PWD}"
     27 OUTPUT_PATH="$(echo ${GOPATH} | sed 's/\:.*//')" #if GOPATH contains multiple paths, use the first one
     28 
     29 if [ -z "${OUTPUT_PATH}" ]; then
     30   echo "Error; could not determine the desired location at which to create a Go-compatible workspace. Please update GOPATH to specify the desired destination directory"
     31   exit 1
     32 fi
     33 
     34 function confirm() {
     35   while true; do
     36     echo "Will create GOPATH-compatible directory structure at ${OUTPUT_PATH}"
     37     echo -n "Ok [Y/n]?"
     38     read decision
     39     if [ "${decision}" == "y" -o "${decision}" == "Y" -o "${decision}" == "" ]; then
     40       return 0
     41     else
     42       if [ "${decision}" == "n" ]; then
     43         return 1
     44       else
     45         echo "Invalid choice ${decision}; choose either 'y' or 'n'"
     46       fi
     47     fi
     48   done
     49 }
     50 
     51 function bindAll() {
     52   bindOne "${ANDROID_PATH}/build/blueprint" "${OUTPUT_PATH}/src/github.com/google/blueprint"
     53   bindOne "${ANDROID_PATH}/build/soong" "${OUTPUT_PATH}/src/android/soong"
     54 
     55   bindOne "${ANDROID_PATH}/art/build" "${OUTPUT_PATH}/src/android/soong/art"
     56   bindOne "${ANDROID_PATH}/external/golang-protobuf" "${OUTPUT_PATH}/src/github.com/golang/protobuf"
     57   bindOne "${ANDROID_PATH}/external/llvm/soong" "${OUTPUT_PATH}/src/android/soong/llvm"
     58   bindOne "${ANDROID_PATH}/external/clang/soong" "${OUTPUT_PATH}/src/android/soong/clang"
     59   echo
     60   echo "Created GOPATH-compatible directory structure at ${OUTPUT_PATH}"
     61 }
     62 
     63 function bindOne() {
     64   #causes $newPath to mirror $existingPath
     65   existingPath="$1"
     66   newPath="$2"
     67   mkdir -p "$newPath"
     68   case $(uname -s) in
     69     Darwin)
     70       echoAndDo bindfs -o allow_recursion -n "${existingPath}" "${newPath}"
     71       ;;
     72     Linux)
     73       echoAndDo bindfs "${existingPath}" "${newPath}"
     74       ;;
     75   esac
     76 }
     77 
     78 function echoAndDo() {
     79   echo "$@"
     80   eval "$@"
     81 }
     82 
     83 if confirm; then
     84   echo
     85   bindAll
     86 else
     87   echo "skipping due to user request"
     88   exit 1
     89 fi
     90