This commit reduces the code surface that interacts with raw JSON data,
reducing code complexity and improving maintainability.
Files that needed to be changed drastically were additionally
cleaned up to remove any code cruft that has accrued over time.
In order to facility this the following changes were made:
* Move JSON handling from `CascadiaSettings` into `SettingsLoader`
This allows us to use STL containers for data model instances.
For instance profiles are now added to a hashmap for O(1) lookup.
* JSON parsing within `SettingsLoader` doesn't differentiate between user,
inbox and fragment JSON data, reducing code complexity and size.
It also centralizes common concerns, like profile deduplication and
ensuring that all profiles are assigned a GUID.
* Direct JSON modification, like the insertion of dynamic profiles into
settings.json were removed. This vastly reduces code complexity,
but unfortunately removes support for comments in JSON on first start.
* `ColorScheme`s cannot be layered. As such its `LayerJson` API was replaced
with `FromJson`, allowing us to remove JSON-based color scheme validation.
* `Profile`s used to test their wish to layer using `ShouldBeLayered`, which
was replaced with a GUID-based hashmap lookup on previously parsed profiles.
Further changes were made as improvements upon the previous changes:
* Compact the JSON files embedded binary, saving 28kB
* Prevent double-initialization of the color table in `ColorScheme`
* Making `til::color` getters `constexpr`, allow better optimizations
The result is a reduction of:
* 48kB binary size for the Settings.Model.dll
* 5-10% startup duration
* 26% code for the `CascadiaSettings` class
* 1% overall code in this project
Furthermore this results in the following breaking changes:
* The long deprecated "globals" settings object will not be detected and no
warning will be created during load.
* The initial creation of a new settings.json will not produce helpful comments.
Both cases are caused by the removal of manual JSON handling and the
move to representing the settings file with model objects instead
## PR Checklist
* [x] Closes#5276
* [x] Closes#7421
* [x] I work here
* [x] Tests added/passed
## Validation Steps Performed
* Out-of-box-experience is identical to before ✔️
(Except for the settings.json file lacking comments.)
* Existing user settings load correctly ✔️
* New WSL instances are added to user settings ✔️
* New fragments are added to user settings ✔️
* All profiles are assigned GUIDs ✔️
This commit aligns the COM-consuming code in VsSetupInstance with best
practices such as passing COM pointers by pointer when they do not need
to be owning references and not using `const` on members, as well as
cleans up some dead code.
Leonard contributed clang-tidy fixes and some reference passing
changes.
Co-authored-by: Leonard Hecker <lhecker@microsoft.com>
This commit adds dynamic profile generators for Visual Studio Developer
Command Prompt (VS2017+) and Visual Studio Developer PowerShell
(VS2019.2+)
Tested manually by deploying locally. My local environment has four
instances of VS installed, one VS2017 and multiple channels of VS2019.
We're wrapping the COM Visual Studio Setup Configuration API to query
for VS instances and retrieve the relevant properties. Two different
namespaces are used so the end-user can turn off one or the other. For
instance, end user may prefer to always use Developer PowerShell.
## Validation Steps Performed
1. Build locally using Visual Studio 2019
2. Deploy CascadiaPackage
3. Verify entries exist in profiles menu
4. Verify entries exist in settings.json
5. Open each profile
6. Validate start-in directory
7. Validate environment variables are as expected
8. Uninstall Windows Terminal - Dev package
9. Repeat.
Closes#3821
