mirror of
https://github.com/golang/go
synced 2024-11-18 16:54:43 -07:00
bdfa187a52
Now that the view can report its own validity, we no longer need to have an extra function to handle that. Change-Id: Icd22f9b08601bd0fe18be064c43d21be2d6782e7 Reviewed-on: https://go-review.googlesource.com/c/tools/+/216144 Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com>
41 lines
1.3 KiB
Go
41 lines
1.3 KiB
Go
package source
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import (
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"bytes"
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"context"
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"fmt"
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"os/exec"
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errors "golang.org/x/xerrors"
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)
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// InvokeGo returns the output of a go command invocation.
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// It does not try to recover from errors.
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func InvokeGo(ctx context.Context, dir string, env []string, args ...string) (*bytes.Buffer, error) {
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stdout := new(bytes.Buffer)
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stderr := new(bytes.Buffer)
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cmd := exec.CommandContext(ctx, "go", args...)
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// On darwin the cwd gets resolved to the real path, which breaks anything that
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// expects the working directory to keep the original path, including the
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// go command when dealing with modules.
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// The Go stdlib has a special feature where if the cwd and the PWD are the
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// same node then it trusts the PWD, so by setting it in the env for the child
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// process we fix up all the paths returned by the go command.
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cmd.Env = append(append([]string{}, env...), "PWD="+dir)
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cmd.Dir = dir
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cmd.Stdout = stdout
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cmd.Stderr = stderr
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if err := cmd.Run(); err != nil {
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// Check for 'go' executable not being found.
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if ee, ok := err.(*exec.Error); ok && ee.Err == exec.ErrNotFound {
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return nil, fmt.Errorf("'gopls requires 'go', but %s", exec.ErrNotFound)
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}
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if ctx.Err() != nil {
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return nil, ctx.Err()
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}
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return stdout, errors.Errorf("err: %v: stderr: %s", err, stderr)
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}
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return stdout, nil
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}
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