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https://github.com/golang/go
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faf83c64e9
Fixes golang/go#32091 Change-Id: I1399a596169384f48d9f2409988226708dcd3473 Reviewed-on: https://go-review.googlesource.com/c/tools/+/177937 Run-TryBot: Ian Cottrell <iancottrell@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Rebecca Stambler <rstambler@golang.org>
77 lines
1.9 KiB
Go
77 lines
1.9 KiB
Go
// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cmd
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import (
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"context"
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"flag"
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"fmt"
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"time"
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"golang.org/x/tools/internal/span"
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)
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// check implements the check verb for gopls.
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type check struct {
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app *Application
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}
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func (c *check) Name() string { return "check" }
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func (c *check) Usage() string { return "<filename>" }
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func (c *check) ShortHelp() string { return "show diagnostic results for the specified file" }
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func (c *check) DetailedHelp(f *flag.FlagSet) {
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fmt.Fprint(f.Output(), `
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Example: show the diagnostic results of this file:
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$ gopls check internal/lsp/cmd/check.go
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gopls check flags are:
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`)
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f.PrintDefaults()
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}
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// Run performs the check on the files specified by args and prints the
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// results to stdout.
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func (c *check) Run(ctx context.Context, args ...string) error {
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if len(args) == 0 {
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// no files, so no results
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return nil
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}
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checking := map[span.URI]*cmdFile{}
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// now we ready to kick things off
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conn, err := c.app.connect(ctx)
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if err != nil {
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return err
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}
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defer conn.terminate(ctx)
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for _, arg := range args {
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uri := span.FileURI(arg)
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file := conn.AddFile(ctx, uri)
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if file.err != nil {
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return file.err
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}
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checking[uri] = file
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}
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// now wait for results
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//TODO: maybe conn.ExecuteCommand(ctx, &protocol.ExecuteCommandParams{Command: "gopls-wait-idle"})
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for _, file := range checking {
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select {
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case <-file.hasDiagnostics:
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case <-time.Tick(30 * time.Second):
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return fmt.Errorf("timed out waiting for results from %v", file.uri)
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}
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file.diagnosticsMu.Lock()
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defer file.diagnosticsMu.Unlock()
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for _, d := range file.diagnostics {
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spn, err := file.mapper.RangeSpan(d.Range)
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if err != nil {
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return fmt.Errorf("Could not convert position %v for %q", d.Range, d.Message)
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}
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fmt.Printf("%v: %v\n", spn, d.Message)
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}
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}
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return nil
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}
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