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Fixes a race condition when checking projects #308

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Mar 25, 2025
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11 changes: 10 additions & 1 deletion ls.nim
Original file line number Diff line number Diff line change
Expand Up @@ -175,6 +175,7 @@ type
failTable*: Table[string, int]
#Project file to fail count
#List of errors (crashes) nimsuggest has had since the lsp session started
checkInProgress*: bool

Certainty* = enum
None
Expand Down Expand Up @@ -900,6 +901,11 @@ proc tryGetNimsuggest*(
return none(NimSuggest)

proc checkProject*(ls: LanguageServer, uri: string): Future[void] {.async, gcsafe.} =
if ls.checkInProgress:
return
ls.checkInProgress = true
defer: ls.checkInProgress = false

if not ls.getWorkspaceConfiguration.await().autoCheckProject.get(true):
return
let conf = await ls.getAndWaitForWorkspaceConfiguration()
Expand Down Expand Up @@ -953,6 +959,10 @@ proc checkProject*(ls: LanguageServer, uri: string): Future[void] {.async, gcsaf
ls.workDoneProgressCreate(token)
ls.progress(token, "begin", fmt "Checking project {uri.uriToPath}")
nimsuggest.checkProjectInProgress = true
defer:
nimsuggest.checkProjectInProgress = false
ls.progress(token, "end")

proc getFilepath(s: Suggest): string =
s.filepath

Expand All @@ -976,7 +986,6 @@ proc checkProject*(ls: LanguageServer, uri: string): Future[void] {.async, gcsaf
PublishDiagnosticsParams %* {"uri": pathToUri(path), "diagnostics": @[]}
ls.notify("textDocument/publishDiagnostics", %params)
ls.filesWithDiags = filesWithDiags
nimsuggest.checkProjectInProgress = false

if nimsuggest.needsCheckProject:
nimsuggest.needsCheckProject = false
Expand Down
9 changes: 9 additions & 0 deletions test.txt
Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@
Content-Length: 256

{"jsonrpc":"2.0","method":"extension/statusUpdate","params":{"lspPath":"/Volumes/Store/langserver/nimlangserver","version":"1.6.0","nimsuggestInstances":[],"openFiles":[],"extensionCapabilities":["RestartSuggest"],"pendingRequests":[],"projectErrors":[]}}
Content-Length: 256

{"jsonrpc":"2.0","method":"extension/statusUpdate","params":{"lspPath":"/Volumes/Store/langserver/nimlangserver","version":"1.6.0","nimsuggestInstances":[],"openFiles":[],"extensionCapabilities":["RestartSuggest"],"pendingRequests":[],"projectErrors":[]}}
Content-Length: 256

{"jsonrpc":"2.0","method":"extension/statusUpdate","params":{"lspPath":"/Volumes/Store/langserver/nimlangserver","version":"1.6.0","nimsuggestInstances":[],"openFiles":[],"extensionCapabilities":["RestartSuggest"],"pendingRequests":[],"projectErrors":[]}}