[shared_preferences] Add shared preferences devtool

[adsonpleal]

This PR adds the shared_preferences_tool package. This package uses the devtools_extension tooling to create a tool for shared preferences. The idea of this PR came from @kenzieschmoll on this issue. Initially I've published this tool as a separate package, but this PR aims to bring the functionality to the main shared_preferences package. Once this PR gets merged I'll archive the shared_preferences_tools package.

shared_preferences_tools.mp4

Pre-launch Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I read the Tree Hygiene wiki page, which explains my responsibilities.
• I read and followed the relevant style guides and ran the auto-formatter. (Unlike the flutter/flutter repo, the flutter/packages repo does use dart format.)
• I signed the CLA.
• The title of the PR starts with the name of the package surrounded by square brackets, e.g. [shared_preferences]
• I linked to at least one issue that this PR fixes in the description above.
• I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or this PR is exempt from version changes.
• I updated CHANGELOG.md to add a description of the change, following repository CHANGELOG style.
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• I added new tests to check the change I am making, or this PR is test-exempt.
• All existing and new tests are passing.

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[adsonpleal]

@kenzieschmoll and @stuartmorgan reopening the PR for the reverted changes.

@kenzieschmoll now I'm getting an error on Linux analyze stable step:

Also, I don't know why the changes are different, checked every file, but this PR seems to have +7,851 additions and the old one had +5,156. I guess github is counting it wrong 🤷 .

[adsonpleal]

Never mind the additions issue! I actually found the offending file. [shared_preferences_tool_eval_test.mocks.dart](https://github.com/flutter/packages/pull/8322/files#diff-569dab15b9971e9d7447872f2ff00405e9c4374ae84a0e3b47a368c085e8c778) is way bigger, since EvalOnDartLibrary and VmService APIs have changed!

I'll remove mockito for this file, 3k+ changes just for the mocks is not reasonable.

[adsonpleal]

@kenzieschmoll about the SDK constraint required by the CI, should we reduce the min version on devtools_entensions(by releasing a new version)? Or should I just downgrade it to 0.2.2? The 0.2.2 version was working fine on the CI.

EDIT:

Unfortunately I can't downgrade it either:

[kenzieschmoll]

I think if you upgrade the devtools_app_shared dependency to ^0.3.0 in shared_preferences_tool that should fix your version solving issue.

[adsonpleal]

I think if you upgrade the devtools_app_shared dependency to ^0.3.0 in shared_preferences_tool that should fix your version solving issue.

That is the issue, it is already on ^0.3.0, as you can see here. But the CI is failing failing with this error:

============================================================
|| Running for packages/shared_preferences/shared_preferences_tool [@3:06]
============================================================

Running command: "flutter pub get" in /b/s/w/ir/x/w/packages/packages/shared_preferences/shared_preferences_tool
Resolving dependencies...
The current Flutter SDK version is 3.27.0.

Because shared_preferences_tool depends on devtools_extensions >=0.3.0 which requires Flutter SDK version >=3.27.1, version solving failed.


You can try the following suggestion to make the pubspec resolve:
* Try using the Flutter SDK version: 3.27.1. 
Failed to update packages.

[packages/shared_preferences/shared_preferences_tool completed in 0m 2s]

The Linux analyze stable is running flutter 3.27.0 🤔 .

@stuartmorgan do you know if the Linux analyze stable will (or already is) be updated to 3.27.1? This should fix the problem.

[kenzieschmoll]

@stuartmorgan do you know if the Linux analyze stable will (or already is) be updated to 3.27.1? This should fix the problem.

Agreed this should be our target solution. If this is not possible, I can downgrade the min version to 3.27.0 and do a patch release of devtools_app_shared and devtools_extensions. Will wait for @stuartmorgan to comment.