mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
e60087a1a7
This removes the final traces of Travis and Appveyor from the Flutter tree. I've updated the documentation and fixed a couple of places where scripts look for Travis, and eliminated the dart tools runningOnTravis function (which was unused anyhow). There are places in the flutter script that used to look for the environment variable TRAVIS. We actually do want to continue to detect that we're running on Travis there, since in the plugins repo we still use Travis (for the moment). In any case, it's OK, because the CI environment variable is set on all of the CI bots (Cirrus, Travis, and Appveyor). FastLane doesn't have a setup_cirrus equivalent to setup_travis, but it actually doesn't matter there either, since it doesn't do Travis-specific things, and it also looks for the CI environment variable.
177 lines
6.8 KiB
Bash
Executable File
177 lines
6.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2015 The Chromium 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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# ---------------------------------- NOTE ---------------------------------- #
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#
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# Please keep the logic in this file consistent with the logic in the
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# `flutter.bat` script in the same directory to ensure that Flutter continues
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# to work across all platforms!
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#
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# -------------------------------------------------------------------------- #
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set -e
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unset CDPATH
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function follow_links() {
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cd -P "${1%/*}"
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local file="$PWD/${1##*/}"
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while [[ -h "$file" ]]; do
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# On Mac OS, readlink -f doesn't work.
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cd -P "${file%/*}"
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file="$(readlink "$file")"
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cd -P "${file%/*}"
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file="$PWD/${file##*/}"
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done
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echo "$PWD/${file##*/}"
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}
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# Convert a filesystem path to a format usable by Dart's URI parser.
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function path_uri() {
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# Reduce multiple leading slashes to a single slash.
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echo "$1" | sed -E -e "s,^/+,/,"
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}
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function _rmlock () {
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[ -n "$FLUTTER_UPGRADE_LOCK" ] && rm -f "$FLUTTER_UPGRADE_LOCK"
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}
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function upgrade_flutter () {
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mkdir -p "$FLUTTER_ROOT/bin/cache"
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# This function is executed with a redirect that pipes the source of
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# this script into file descriptor 3.
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#
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# To ensure that we don't simultaneously update Dart in multiple
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# parallel instances, we try to obtain an exclusive lock on this
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# file descriptor (and thus this script's source file) while we are
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# updating Dart and compiling the script. To do this, we try to use
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# the command line program "flock", which is available on many
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# Unix-like platforms, in particular on most Linux distributions.
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# You give it a file descriptor, and it locks the corresponding
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# file, having inherited the file descriptor from the shell.
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#
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# Complicating matters, there are two major scenarios where this
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# will not work.
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#
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# The first is if the platform doesn't have "flock", for example on Mac.
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# There is not a direct equivalent, so on platforms that don't have flock,
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# we fall back to using a lockfile and spinlock with "shlock". This
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# doesn't work as well over NFS as it relies on PIDs. Any platform
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# without either of these tools has no locking at all. To determine if we
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# have "flock" or "shlock" available, we abuse the "hash" shell built-in.
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#
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# The second complication is NFS. On NFS, to obtain an exclusive
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# lock you need a file descriptor that is open for writing, because
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# NFS implements exclusive locks by writing, or some such. Thus, we
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# ignore errors from flock. We do so by using the '|| true' trick,
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# since we are running in a 'set -e' environment wherein all errors
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# are fatal, and by redirecting all output to /dev/null, since
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# users will typically not care about errors from flock and are
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# more likely to be confused by them than helped.
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#
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# For "flock", the lock is released when the file descriptor goes out of
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# scope, i.e. when this function returns. The lock is released via
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# a trap when using "shlock".
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if hash flock 2>/dev/null; then
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flock 3 2>/dev/null || true
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elif hash shlock 2>/dev/null; then
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FLUTTER_UPGRADE_LOCK="$FLUTTER_ROOT/bin/cache/.upgrade_lock"
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while ! shlock -f "$FLUTTER_UPGRADE_LOCK" -p $$ ; do sleep .1 ; done
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trap _rmlock EXIT
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fi
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local revision="$(cd "$FLUTTER_ROOT"; git rev-parse HEAD)"
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if [[ ! -f "$SNAPSHOT_PATH" || ! -s "$STAMP_PATH" || "$(cat "$STAMP_PATH")" != "$revision" || "$FLUTTER_TOOLS_DIR/pubspec.yaml" -nt "$FLUTTER_TOOLS_DIR/pubspec.lock" ]]; then
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rm -f "$FLUTTER_ROOT/version"
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touch "$FLUTTER_ROOT/bin/cache/.dartignore"
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"$FLUTTER_ROOT/bin/internal/update_dart_sdk.sh"
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VERBOSITY="--verbosity=error"
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echo Building flutter tool...
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if [[ "$CI" == "true" || "$BOT" == "true" || "$CONTINUOUS_INTEGRATION" == "true" || "$CHROME_HEADLESS" == "1" ]]; then
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PUB_ENVIRONMENT="$PUB_ENVIRONMENT:flutter_bot"
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VERBOSITY="--verbosity=all"
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fi
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export PUB_ENVIRONMENT="$PUB_ENVIRONMENT:flutter_install"
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if [[ -d "$FLUTTER_ROOT/.pub-cache" ]]; then
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export PUB_CACHE="${PUB_CACHE:-"$FLUTTER_ROOT/.pub-cache"}"
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fi
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while : ; do
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cd "$FLUTTER_TOOLS_DIR"
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"$PUB" upgrade "$VERBOSITY" --no-packages-dir && break
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echo "Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds..."
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sleep 5
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done
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"$DART" --snapshot="$SNAPSHOT_PATH" --packages="$FLUTTER_TOOLS_DIR/.packages" "$SCRIPT_PATH"
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echo "$revision" > "$STAMP_PATH"
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fi
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# The exit here is duplicitous since the function is run in a subshell,
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# but this serves as documentation that running the function in a
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# subshell is required to make sure any lockfile created by shlock
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# is cleaned up.
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exit $?
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}
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PROG_NAME="$(path_uri "$(follow_links "$BASH_SOURCE")")"
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BIN_DIR="$(cd "${PROG_NAME%/*}" ; pwd -P)"
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export FLUTTER_ROOT="$(cd "${BIN_DIR}/.." ; pwd -P)"
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FLUTTER_TOOLS_DIR="$FLUTTER_ROOT/packages/flutter_tools"
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SNAPSHOT_PATH="$FLUTTER_ROOT/bin/cache/flutter_tools.snapshot"
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STAMP_PATH="$FLUTTER_ROOT/bin/cache/flutter_tools.stamp"
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SCRIPT_PATH="$FLUTTER_TOOLS_DIR/bin/flutter_tools.dart"
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DART_SDK_PATH="$FLUTTER_ROOT/bin/cache/dart-sdk"
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DART="$DART_SDK_PATH/bin/dart"
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PUB="$DART_SDK_PATH/bin/pub"
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# Test if running as superuser – but don't warn if running within Docker
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if [[ "$EUID" == "0" && ! -f /.dockerenv ]]; then
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echo " Woah! You appear to be trying to run flutter as root."
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echo " We strongly recommend running the flutter tool without superuser privileges."
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echo " /"
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echo "📎"
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fi
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# Test if Git is available on the Host
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if ! hash git 2>/dev/null; then
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echo "Error: Unable to find git in your PATH."
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exit 1
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fi
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# Test if the flutter directory is a git clone (otherwise git rev-parse HEAD would fail)
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if [[ ! -e "$FLUTTER_ROOT/.git" ]]; then
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echo "Error: The Flutter directory is not a clone of the GitHub project."
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echo " The flutter tool requires Git in order to operate properly;"
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echo " to set up Flutter, run the following command:"
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echo " git clone -b beta https://github.com/flutter/flutter.git"
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exit 1
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fi
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# To debug the tool, you can uncomment the following lines to enable checked mode and set an observatory port:
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# FLUTTER_TOOL_ARGS="--checked $FLUTTER_TOOL_ARGS"
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# FLUTTER_TOOL_ARGS="$FLUTTER_TOOL_ARGS --observe=65432"
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(upgrade_flutter) 3< "$PROG_NAME"
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set +e
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# FLUTTER_TOOL_ARGS isn't quoted below, because it is meant to be considered as
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# separate space-separated args.
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"$DART" $FLUTTER_TOOL_ARGS "$SNAPSHOT_PATH" "$@"
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# The VM exits with code 253 if the snapshot version is out-of-date.
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# If it is, we need to snapshot it again.
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EXIT_CODE=$?
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if [[ $EXIT_CODE != 253 ]]; then
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exit $EXIT_CODE
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fi
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set -e
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"$DART" --snapshot="$SNAPSHOT_PATH" --packages="$FLUTTER_TOOLS_DIR/.packages" "$SCRIPT_PATH"
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"$DART" $FLUTTER_TOOL_ARGS "$SNAPSHOT_PATH" "$@"
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