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go/internal/lsp/command.go
Rebecca Stambler 57610eddc9 internal/lsp: rework snapshots and cache FileHandles per-snapshot
This change does not complete the work to handle snapshots correctly,
but it does implement the behavior of re-building the snapshot on each
file invalidation.

It also moves to the approach of caching the FileHandles on the snapshot,
rather than in the goFile object, which is now not necessary.

Finally, this change shifts the logic of metadata invalidation into the
content invalidation step, so there is less logic to decide if we should
re-load a package or not.

Change-Id: I18387c385fb070da4db1302bf97035ce6328b5c3
Reviewed-on: https://go-review.googlesource.com/c/tools/+/197799
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Cottrell <iancottrell@google.com>
2019-10-01 16:26:22 +00:00

36 lines
1011 B
Go

package lsp
import (
"context"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/span"
errors "golang.org/x/xerrors"
)
func (s *Server) executeCommand(ctx context.Context, params *protocol.ExecuteCommandParams) (interface{}, error) {
switch params.Command {
case "tidy":
if len(params.Arguments) == 0 || len(params.Arguments) > 1 {
return nil, errors.Errorf("expected one file URI for call to `go mod tidy`, got %v", params.Arguments)
}
// Confirm that this action is being taken on a go.mod file.
uri := span.NewURI(params.Arguments[0].(string))
view := s.session.ViewOf(uri)
f, err := view.GetFile(ctx, uri)
if err != nil {
return nil, err
}
fh := view.Snapshot().Handle(ctx, f)
if fh.Identity().Kind != source.Mod {
return nil, errors.Errorf("%s is not a mod file", uri)
}
// Run go.mod tidy on the view.
if err := source.ModTidy(ctx, view); err != nil {
return nil, err
}
}
return nil, nil
}