flutter/flutter.bash

   1 #!/bin/bash
   2
   3 # title: Flutter
   4 # homepage: https://flutter.dev
   5 # tagline: UI Toolkit for mobile, web, and desktop
   6 # description: |
   7 #   Flutter is Google’s UI toolkit for building beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.
   8 # examples: |
   9 #   ```bash
  10 #   flutter create my_app
  11 #   ```
  12
  13 set -e
  14 set -u
  15
  16 FLUTTER_VER=${WEBI_VERSION:-}
  17 FLUTTER_VER="${FLUTTER_VER:-v}"
  18 EXT="tar.xz"
  19 FLUTTER_PATH=""
  20
  21 FLUTTER_OS="${WEBI_OS}" # linux or darwin
  22 if [ "darwin" == "$FLUTTER_OS" ]; then
  23   FLUTTER_OS="macos"
  24   EXT="zip"
  25 fi
  26
  27 my_tmp="$WEBI_TMP"
  28
  29 #########
  30 # BEGIN #
  31 #########
  32
  33 get_flutter_version() {
  34   my_char="."
  35   my_count=$(awk -F"${my_char}" '{print NF-1}' <<< "${FLUTTER_VER}")
  36   # get the latest version if partial
  37   if [ $my_count -ne 2 ]; then
  38     if [ "$FLUTTER_VER" != "v" ]; then
  39       FLUTTER_VER="$FLUTTER_VER\\."
  40     fi
  41     get_http=""
  42     if [ -n "$(type -p curl)" ]; then
  43       get_http="curl -fsL"
  44     elif [ -n "$(type -p wget)" ]; then
  45       get_http="wget --quiet -O -"
  46     else
  47       echo "Found neither 'curl' nor 'wget'. Can't Continue."
  48       exit 1
  49     fi
  50   fi
  51   FLUTTER_PATH=$($get_http "https://storage.googleapis.com/flutter_infra/releases/releases_${FLUTTER_OS}.json" | grep ${FLUTTER_OS} | grep ${FLUTTER_VER} | grep stable | head -n 1 | cut -d '"' -f 4) \
  52         || echo 'error automatically determining current Flutter version'
  53   FLUTTER_VER=$(echo $FLUTTER_PATH | sed 's/.*flutter_.*_v//' | sed 's/-stable.*//')
  54 }
  55
  56 get_flutter_version
  57
  58 #
  59 # flutter
  60 #
  61 flutter_install_path=$HOME/.local/opt/flutter_${FLUTTER_VER}
  62 mkdir -p "$flutter_install_path"
  63
  64 # TODO warn if existing flutter in path my take precedence
  65 if [ -e "$flutter_install_path/bin/flutter" ]; then
  66   # flutter of some version is already installed
  67   if [ "${FLUTTER_VER}" == "$($flutter_install_path/bin/flutter --version | head -n 1 | cut -d ' ' -f2 2>/dev/null)" ]; then
  68     echo flutter_${FLUTTER_VER} already installed at $flutter_install_path
  69     exit 0
  70   fi
  71 fi
  72
  73 # flutter_linux_v0.9.0-dev # flutter_linux_v0.9.0-dev.tar.xz
  74 FLUTTER_PRE="flutter_${FLUTTER_OS}_${FLUTTER_VER}-stable"
  75 FLUTTER_REMOTE="https://storage.googleapis.com/flutter_infra/releases/${FLUTTER_PATH}"
  76 FLUTTER_LOCAL="$my_tmp/${FLUTTER_PRE}.${EXT}"
  77 FLUTTER_UNTAR="$my_tmp/${FLUTTER_PRE}"
  78
  79 if [ -n "$(command -v curl 2>/dev/null | grep curl)" ]; then
  80   curl -fSL ${FLUTTER_REMOTE} -o ${FLUTTER_LOCAL} || echo 'error downloading flutter'
  81 elif [ -n "$(command -v wget 2>/dev/null | grep wget)" ]; then
  82   wget ${FLUTTER_REMOTE} -O ${FLUTTER_LOCAL} || echo 'error downloading flutter'
  83 else
  84   echo "'wget' and 'curl' are missing. Please run the following command and try again"
  85   echo "    sudo apt-get install --yes curl wget"
  86   exit 1
  87 fi
  88
  89 mkdir -p ${FLUTTER_UNTAR}/
  90 # --strip-components isn't portable, switch to portable version by performing move step after untar
  91 if [ "zip" == "$EXT" ]; then
  92   pushd ${FLUTTER_UNTAR}/
  93     unzip ${FLUTTER_LOCAL}
  94   popd
  95 else
  96   tar xf ${FLUTTER_LOCAL} -C ${FLUTTER_UNTAR}/ #--strip-components=1
  97 fi
  98 if [ -n "$(command -v rsync 2>/dev/null | grep rsync)" ]; then
  99   echo rsync -Krl "${FLUTTER_UNTAR}"/flutter/ "$flutter_install_path/"
 100   rsync -Krl "${FLUTTER_UNTAR}/flutter/" "$flutter_install_path/"
 101 else
 102   echo cp -Hr "${FLUTTER_UNTAR}/"flutter/* "${FLUTTER_UNTAR}/"flutter/.* "$flutter_install_path/"
 103   cp -Hr "${FLUTTER_UNTAR}/"flutter/* "${FLUTTER_UNTAR}/"flutter/.* "$flutter_install_path/"
 104 fi
 105 rm -rf "${FLUTTER_UNTAR}"
 106
 107 #######
 108 # END #
 109 #######
 110
 111 # TODO add more than one at a time
 112 pathman add $flutter_install_path/bin