sdks/builds/unzip-android-archive.sh

   1 #!/usr/bin/env bash
   2
   3 set -xe
   4
   5 function cleanup()
   6 {
   7         if [ -n "$ARCHIVE_TEMP_DIR" ]; then
   8                 rm -rf "$ARCHIVE_TEMP_DIR"
   9         fi
  10 }
  11
  12 trap cleanup 0
  13
  14 ## Parameters:
  15 #    $1: path to source archive
  16 #    $2: destination directory
  17
  18 #
  19 # Special case archives - archives which have no single root directory when unpacked and thus
  20 #                         the workaround below doesn't work for them.
  21 # Entry format: grep regex matching the END of path in $1 (no trailing $ necessary)
  22 #
  23 SPECIAL_CASE_ARCHIVES="
  24     cmake-.*\.zip
  25 "
  26
  27 HAVE_SPECIAL_CASE=no
  28 for sac in $SPECIAL_CASE_ARCHIVES; do
  29         if echo $1 | grep "${sac}$" > /dev/null 2>&1; then
  30                 HAVE_SPECIAL_CASE=yes
  31                 break
  32         fi
  33 done
  34
  35 if [ "$HAVE_SPECIAL_CASE" == "no" ]; then
  36         # This weird syntax is necessary because some zip archives do not contain a separate
  37         # entry for the root directory but merely a collection of its subdirectories (for instance
  38         # platform-tools). The very first entry in the archive is retrieved, then its path is read and
  39         # finally the part up to the first '/' of the path is retrieved as the root directory of
  40         # the archive. With platform-tools the last part is necessary because otherwise the root directory
  41         # would end up being reported as `platform-tools/adb` as this is the first entry in the archive and
  42         # there's no `platform-tools/` entry
  43         ZIP_ROOT_DIR=$(unzip -qql "$1" | head -n1 | tr -s ' ' | cut -d' ' -f5- | tr '/' ' ' | cut -d' ' -f1)
  44 fi
  45
  46 # We need a temporary directory because some archives (emulator) have their root directory named the
  47 # same as a file/directory inside it (emulator has emulator/emulator executable for instance) and
  48 # moving such a file/directory to .. wouldn't work
  49 ARCHIVE_TEMP_DIR=$(mktemp -d -t unzip_android_archive_XXXXXXXX)
  50
  51 unzip "$1" -d "$ARCHIVE_TEMP_DIR"
  52 mkdir -p "$2"
  53
  54 if [ -z "$ZIP_ROOT_DIR" ]; then
  55         mv -f "$ARCHIVE_TEMP_DIR"/* "$2"
  56 else
  57         find "$ARCHIVE_TEMP_DIR/$ZIP_ROOT_DIR/" -maxdepth 1 -not \( -name "$ZIP_ROOT_DIR" -and -type d \) -and -not -name . -and -not -name .. -exec mv -f '{}' "$2" ';'
  58 fi