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server.js
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server.js
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const path = require('path')
const {
createConnection,
ProposedFeatures,
TextDocuments,
TextDocumentSyncKind
} = require('vscode-languageserver')
const { Diagnostic, DiagnosticSeverity, Position, Range } = require('vscode-languageserver-types')
const { TextDocument } = require('vscode-languageserver-textdocument')
const { URI } = require('vscode-uri')
const connection = createConnection(ProposedFeatures.all)
const documents = new TextDocuments(TextDocument)
const validateLanguages = ['feature']
function clearDiagnostics(document) {
connection.sendDiagnostics({
uri: document.uri,
diagnostics: []
})
}
function isDocumentValidatable(document) {
return validateLanguages.includes(document.languageId)
}
function handleError(err) {
if(err.reasons) {
for(const reason of err.reasons) {
connection.window.showErrorMessage(`gherkin-lint: ${reason}`)
}
return
}
connection.window.showErrorMessage((err.stack || '').replace(/\n/gu, ' '))
}
async function gherkinLint() {
const configParser = require('gherkin-lint/dist/config-parser')
const linter = require('gherkin-lint/dist/linter')
const featureFinder = require('gherkin-lint/dist/feature-finder')
const noDupe = require('./rules/no-dupe-feature-names-2')
const config = configParser.getConfiguration()
config['no-dupe-feature-names-2'] = config['no-dupe-feature-names']
delete config['no-dupe-feature-names']
noDupe.clear()
return linter.lint(featureFinder.getFeatureFiles(['features/']), config, [path.join(__dirname, 'rules')])
}
async function handleValidationResults(document, results) {
if(!isDocumentValidatable(document)) {
return
}
const documentPath = URI.parse(document.uri).fsPath
try {
const documentResults = results.find(result => result.filePath === documentPath) || { errors: [] }
connection.console.log(`documentResults: ${JSON.stringify(documentResults)}`)
const result = {
diagnostics: documentResults.errors.map(error => {
const line = Number.parseInt(error.line, 10)
const startPosition = Position.create(line - 1, 0)
const endPosition = Position.create(line, 0)
return Diagnostic.create(
Range.create(startPosition, endPosition),
error.message,
DiagnosticSeverity.Error,
error.rule,
'gherkin-lint'
)
})
}
connection.sendDiagnostics({
uri: document.uri,
diagnostics: result.diagnostics
})
} catch(err) {
handleError(err)
}
}
async function validateAll() {
try {
const results = await gherkinLint()
for(const document of documents.all()) {
await handleValidationResults(document, results)
}
} catch(err) {
handleError(err)
}
}
connection.onInitialize(() => {
validateAll()
return {
capabilities: {
textDocumentSync: {
openClose: true,
save: true,
change: TextDocumentSyncKind.Full
}
}
}
})
connection.onDidChangeWatchedFiles(validateAll)
documents.onDidChangeContent(() => validateAll())
documents.onDidClose(({ document }) => {
clearDiagnostics(document)
})
documents.onDidSave(() => {
validateAll()
})
connection.onExecuteCommand(async(params) => {
if(params.command === 'vscode-gherkin-lint.executeLint') {
validateAll()
}
return {}
})
documents.listen(connection)
connection.listen()