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Improve debug configuration providers #256

Merged
merged 4 commits into from
Aug 16, 2024
Merged

Improve debug configuration providers #256

merged 4 commits into from
Aug 16, 2024

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ylatuya
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@ylatuya ylatuya commented Aug 8, 2024

The following improves the debug configuration providers:

  • Fix a bug in the creation of debug configurations for cppdbg and cppvsdbg
  • Register cppdbg and cppvsdbg providers separetly
  • Only register the providers if there is a debugger extension installed.

@ylatuya
debug: fix list of debug configurations for C++ (GDB/LLDB) debugger
2aea915 
createDebugConfiguration is silently failing returning an empty
list of debug configurations.
@ylatuya
debug: fix DebugConfigurationProvider registration
65bfd5b 
We are incorrectly registering a single debug provider that provides
`cppdbg` and `cppvsdbg` configurations using the `cppdbg` type.

Split the cppdb and cppvsdbg debug providers into 2 different providers
and register them based on the current operating system following the
same approach as the `ms-vscode.cpptools` extension.

Also simplify the debug providers into a single MesonDebugProvider
class.
@ylatuya
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ylatuya commented Aug 8, 2024 •
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Here is an example of providing debug configuration for the lldb debugger type when the extension is not installed:
Screenshot 2024-08-07 at 14 22 54

@ylatuya
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ylatuya commented Aug 8, 2024

I am not sure how to handle the case of a missing debugger extension:

  1. Only register the provider if the extension exists
  2. Always register the providers, but only provide debug configurations when the extension exists.

@cskeogh cskeogh mentioned this pull request Aug 9, 2024
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tristan957
tristan957 reviewed Aug 9, 2024
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src/debug/index.ts Outdated Show resolved Hide resolved
@tristan957
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What line does the undefined come from?

@ylatuya
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ylatuya commented Aug 13, 2024

What line does the undefined come from?

undefined comes from registering a debug configuration provider using vscode.debug.registerDebugConfigurationProvider with a debugger type that is unknown, for example registering it for the lldb debugger type when this debugger does not exists.

Debuggers are registered by extensions like CodeLLDB here registering a new debugger with type: lldb and label: LLDB.

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undefined comes from registering a debug configuration provider using vscode.debug.registerDebugConfigurationProvider with a debugger type that is unknown, for example registering it for the lldb debugger type when this debugger does not exists.

Does this mean that we should check for the existence of the debugger before registering the provider?

@ylatuya
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ylatuya commented Aug 13, 2024 •
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undefined comes from registering a debug configuration provider using vscode.debug.registerDebugConfigurationProvider with a debugger type that is unknown, for example registering it for the lldb debugger type when this debugger does not exists.

Does this mean that we should check for the existence of the debugger before registering the provider?

This is what this PR does here: fb4d6a8

My doubt is whether to do that check when registering the provider or when listing configurations in MesonDebugConfigurationProvider.provideDebugConfigurations for the corner case in which a user has the meson extension installed and initialized and they install the extension providing the debugger support afterwards, which would require restarting vscode. Supporting that corner case would make the code less obvious, and I am unsure about the real benefits.

@ylatuya
debug: register providers only if the debugger extension is installed
a756e9b 
Providing debug configurations if the debugger extension is not
installed has 2 problems:
  * The debug configuration is listed in a menu item named "undefined"
  * The launch configuration will not work because the debugger does not
    exists
@ylatuya
debug: use lldb or gdb for cppdbg using the OS defaults
37278d5 
We shouldn't infer what debugger to use based on the compiler
command. Instead we use the defaults based on the OS:
https://code.visualstudio.com/docs/cpp/launch-json-reference#_mimode
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I don't think we need to solve the corner case. I like what you have. Are you ready for me to merge it?

@ylatuya
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ylatuya commented Aug 13, 2024

I don't think we need to solve the corner case. I like what you have. Are you ready for me to merge it?

It's ready to be merged :) Thanks for the review

@tristan957 tristan957 added this pull request to the merge queue Aug 16, 2024
Merged via the queue into mesonbuild:main with commit 5cc1b7b Aug 16, 2024
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@ylatuya @tristan957