pub get change Lockfile(pubspec.lock) when PUB_HOSTED_URL changed

[shifujun]

Environment

• pub version or flutter pub version:
  Pub 2.4.1
• OS version:
  Mac OS X 10.14.6
• Are you using the Chinese community mirror or a corporate firewall?
  Yes.

Problem

1. set PUB_HOSTED_URL=https://pub.flutter-io.cn
2. Init a dart project.
3. run pub get, generate a pubspec.lock file.
4. unset PUB_HOSTED_URL with unset PUB_HOSTED_URL
5. rerun pub get, then pubspec.lock file changed.

Not only the url changed, but also the version upgrade.

Expected behavior

• Download the dependence from url and version recorded in pubspec.lock.

OR

• Exit with error said PUB_HOSTED_URL not same with pubspec.lock used.

Actual behavior

pub get run success and changed pubspec.lock, which was not the behavior like the doc said. The doc said pub get use pubspec.lock, and there are pub upgrade and pub downgrade change pubspec.lock.

[bennya8]

the same issue, have to unset PUB_HOSTED_URL var using default repo to solve the problem.. -_-

[wangpan2011]

I think it has nothing to do with pub hosted server.
Came across the same issue when I use a new flutter sdk version and an empty local pub cache.
Downgrade flutter sdk to the version when the lock file was generated solve this problem.

[yujiuqie]

If you set flutter export path (path_to_flutter) both in ~/.zshrc and ~/.bash_profile，make sure you have added blew codes in both files, or only keep ~/.bash_profile configuration.

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
export PATH=/Users/path_to_flutter/flutter/bin:$PATH

[sinkcup]

HACK:

if [ "$PUB_HOSTED_URL" ]; then sed -i "s|https://pub.dev|$PUB_HOSTED_URL|g" pubspec.lock; fi
flutter pub get