Hidenori Matsubayashi
66 lines
2.1 KiB
Bash
Executable File
66 lines
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2021 Sony Group Corporation. All rights reserved.
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# Copyright 2021 Samsung Electronics Co., Ltd. All rights reserved.
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# Copyright 2014 The Flutter Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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set -e
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# Needed because if it is set, cd may print the path it changed to.
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unset CDPATH
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# On Mac OS, readlink -f doesn't work, so follow_links traverses the path one
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# link at a time, and then cds into the link destination and find out where it
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# ends up.
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#
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# The returned filesystem path must be a format usable by Dart's URI parser,
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# since the Dart command line tool treats its argument as a file URI, not a
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# filename. For instance, multiple consecutive slashes should be reduced to a
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# single slash, since double-slashes indicate a URI "authority", and these are
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# supposed to be filenames. There is an edge case where this will return
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# multiple slashes: when the input resolves to the root directory. However, if
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# that were the case, we wouldn't be running this shell, so we don't do anything
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# about it.
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#
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# The function is enclosed in a subshell to avoid changing the working directory
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# of the caller.
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function follow_links() (
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cd -P "$(dirname -- "$1")"
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file="$PWD/$(basename -- "$1")"
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while [[ -h "$file" ]]; do
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cd -P "$(dirname -- "$file")"
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file="$(readlink -- "$file")"
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cd -P "$(dirname -- "$file")"
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file="$PWD/$(basename -- "$file")"
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done
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echo "$file"
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)
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PROG_NAME="$(follow_links "${BASH_SOURCE[0]}")"
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BIN_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
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OS="$(uname -s)"
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# Allow only 64-bit host platform.
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if [ "$(getconf LONG_BIT)" != "64" ]; then
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echo "$(basename $PROG_NAME) only supports 64 bit platforms."
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exit 1
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fi
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# If we're on Windows, invoke the batch script instead to get proper locking.
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if [[ $OS =~ MINGW.* || $OS =~ CYGWIN.* ]]; then
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echo "Window platforms are not supported."
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exit 1
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fi
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source "$BIN_DIR/internal/shared.sh"
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# Clone or update the flutter repo.
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update_flutter
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# Upgrade flutter-elinux if needed.
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update_flutter_elinux
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# Run the snapshot.
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exec_snapshot "$@"
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