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x/tools/gopls: filter -o from go list invocation #1561

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squeeze69 opened this issue Jun 4, 2021 · 4 comments
Open

x/tools/gopls: filter -o from go list invocation #1561

squeeze69 opened this issue Jun 4, 2021 · 4 comments
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@hyangah
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vscode-go/unplanned

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@squeeze69
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Please answer these questions before submitting your issue. Thanks!

What version of Go, VS Code & VS Code Go extension are you using?

  • Run go version to get version of Go from the VS Code integrated terminal.

    • go version go1.16.5 windows/amd64

  • Run gopls -v version to get version of Gopls from the VS Code integrated terminal.

    • golang.org/x/tools/gopls v0.6.11

  • Run code -v or code-insiders -v to get version of VS Code or VS Code Insiders.

    • Versione: 1.56.2 (user setup)
      Commit: 054a9295330880ed74ceaedda236253b4f39a335
      Data: 2021-05-12T17:13:13.157Z
      Electron: 12.0.4
      Chrome: 89.0.4389.114
      Node.js: 14.16.0
      V8: 8.9.255.24-electron.0
      Sistema operativo: Windows_NT x64 6.1.7601

  • Check your installed extensions to get the version of the VS Code Go extension

    • v0.25.1

Share the Go related settings you have added/edited

Run Preferences: Open Settings (JSON) command to open your settings.json file.
Share all the settings with the go. or ["go"] or gopls prefixes.
{
"settings": {
"go.toolsEnvVars": {
"GOOS": "js",
"GOARCH": "wasm",
"GO111MODULE":"off"
},
"go.buildFlags": ["-o='built/output.wasm'"]
}
}

Describe the bug

Starting vscode with a go project with a workspace including: "go.buildFlags": ["-o='built/output.wasm'"] the go extension complains that "go list" doesn't support the "-o" flag.
The error is:
Error loading workspace: err: exit status 2: stderr: flag provided but not defined: -o usage: go list [-f format] [-json] [-m] [list flags] [build flags] [packages] Run 'go help list' for details. : packages.Load error

A clear and concise description of what you expected to happen.
...I'd expect the workspace to load w/o any complain, since the "-o" flag should be used in "go build"
@stamblerre stamblerre transferred this issue from golang/vscode-go Jun 4, 2021
@stamblerre stamblerre changed the title wrong workspace error x/tools/gopls: filter -o from go list invocation Jun 4, 2021
@stamblerre stamblerre self-assigned this Jun 4, 2021
@gopherbot
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Change https://golang.org/cl/325889 mentions this issue: internal/gocommand: filter -o from build flags

@hyangah
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hyangah commented Jun 8, 2021

@squeeze69 What is the goal of adding -o into the go.buildFlags? The build flags are used to build/vet/test every package in the project and I am afraid -o doesn't fit there. The vscode go extension doesn't run go build any longer, that means, even with the workaround cl/325889 tries to do, it will not do what you expect. I agree that the settings documentation needs to clarify this fact.

If your goal is to run go build and produce the output, I think VSCode's Task may be a better fit for the problem. https://code.visualstudio.com/docs/editor/tasks. It's unfortunate that VSCode doesn't support "Run task on save" feature natively so currently you may need to depend on third-party extensions, or manually invoke the build task (for example, if you place the go build task as the "build" kind, default task, you can trigger it with Cmd+Shift+B on mac). What do you think?

@squeeze69
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Hi, it could be an interesting workaround, thanks, but the current settings were ok before a go plugin update (I really don't remember when it stopped working).

BTW, IMHO, every build flag accepted by the build command should be allowed, not a subset common to go list, etc... Maybe a filter would be enough? Or a new setting go.testBuildFlags which override go.buildFlags in test cases (only if present, of course)?

@hyangah
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hyangah commented Jun 11, 2021

I admit it's confusing - -o isn't a build flag, but it is a go build command's flag.
For testing, there is go.testFlags.

@findleyr findleyr assigned hyangah and unassigned stamblerre Jun 11, 2021
@hyangah hyangah transferred this issue from golang/go Jun 11, 2021
@gopherbot gopherbot added this to the Untriaged milestone Jun 11, 2021
@hyangah hyangah modified the milestones: Untriaged, Backlog Jun 11, 2021
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