mirror of
https://github.com/golang/go
synced 2024-11-18 21:24:44 -07:00
f558378bf8
instead of driving the source pacakge directly, it indirects through the lsp protocol (the same way check does) We are normalizing on all the command lines doing this, so that server mode is more viable in the future. Change-Id: Ib5f2a059a44a5c60a53129c554e3cc14ca72c4a8 Reviewed-on: https://go-review.googlesource.com/c/tools/+/170577 Run-TryBot: Ian Cottrell <iancottrell@google.com> Reviewed-by: Rebecca Stambler <rstambler@golang.org>
98 lines
2.2 KiB
Go
98 lines
2.2 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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"golang.org/x/tools/internal/lsp/protocol"
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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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type checkClient struct {
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baseClient
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diagnostics chan entry
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}
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type entry struct {
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uri span.URI
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diagnostics []protocol.Diagnostic
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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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client := &checkClient{
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diagnostics: make(chan entry),
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}
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checking := map[span.URI]*protocol.ColumnMapper{}
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// now we ready to kick things off
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_, err := c.app.connect(ctx, client)
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if err != nil {
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return err
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}
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for _, arg := range args {
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uri := span.FileURI(arg)
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m, err := client.AddFile(ctx, uri)
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if err != nil {
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return err
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}
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checking[uri] = m
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}
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// now wait for results
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for entry := range client.diagnostics {
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//TODO:timeout?
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m, found := checking[entry.uri]
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if !found {
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continue
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}
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for _, d := range entry.diagnostics {
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spn, err := m.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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delete(checking, entry.uri)
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if len(checking) == 0 {
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return nil
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}
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}
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return fmt.Errorf("did not get all results")
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}
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func (c *checkClient) PublishDiagnostics(ctx context.Context, p *protocol.PublishDiagnosticsParams) error {
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c.diagnostics <- entry{
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uri: span.URI(p.URI),
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diagnostics: p.Diagnostics,
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}
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return nil
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}
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