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x/tools/gopls: CLI: gopls check go.mod hangs #46251

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findleyr opened this issue May 19, 2021 · 3 comments
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x/tools/gopls: CLI: gopls check go.mod hangs #46251

findleyr opened this issue May 19, 2021 · 3 comments
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FrozenDueToAge gopls Issues related to the Go language server, gopls. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Tools This label describes issues relating to any tools in the x/tools repository.
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gopls/v0.7.1

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@findleyr
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The gopls command line can check go files with gopls check foo.go, and should theoretically be able to also check modfiles. However, gopls check go.mod just hangs indefinitely.

We should either add support for checking modfiles, or return a meaningful error.

CC @stamblerre
@findleyr findleyr added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label May 19, 2021
@findleyr findleyr added this to the gopls/unplanned milestone May 19, 2021
@gopherbot gopherbot added Tools This label describes issues relating to any tools in the x/tools repository. gopls Issues related to the Go language server, gopls. labels May 19, 2021
@KarthikNayak
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KarthikNayak commented Jun 17, 2021 •
edited

Interesting! @stamblerre can I pick this up?

Update: could reproduce it on latest tip.

KarthikNayak added a commit to KarthikNayak/tools that referenced this issue Jun 17, 2021
@KarthikNayak
internal/lsp: do not block on channel when there is an error
94bf292 
In `internal/lsp/cmd.(*connection).diagnoseFiles`, when we request for
`gopls/diagnoseFiles`, we are blocked on the channel even if there is an error.
In such a scenario, we've reach a deadlock since. Avoid this by checking for
error, existing if it exists and also closing the channel while we're at it.

Fixes golang/go#46251

Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
@KarthikNayak KarthikNayak mentioned this issue Jun 17, 2021
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@KarthikNayak
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I actually went ahead and created a PR, but I need help writing tests, can someone point to where the tests for this section of the code lie?

@gopherbot
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Change https://golang.org/cl/329109 mentions this issue: internal/lsp: do not block on channel when there is an error

@golang golang locked and limited conversation to collaborators Jun 21, 2022
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FrozenDueToAge gopls Issues related to the Go language server, gopls. NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. Tools This label describes issues relating to any tools in the x/tools repository.
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internal/lsp: do not block on channel when there is an error KarthikNayak/tools
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@KarthikNayak @stamblerre @gopherbot @findleyr