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-rw-r--r--go/internal/packagesdriver/sizes.go102
-rw-r--r--go/packages/golist.go48
-rw-r--r--go/packages/packagestest/modules.go28
-rw-r--r--internal/gocommand/invoke.go92
-rw-r--r--internal/imports/fix.go45
-rw-r--r--internal/imports/mod.go4
-rw-r--r--internal/imports/mod_112_test.go3
-rw-r--r--internal/imports/mod_test.go10
-rw-r--r--internal/lsp/cache/mod.go23
-rw-r--r--internal/lsp/cache/view.go19
-rw-r--r--internal/lsp/command.go17
-rw-r--r--internal/lsp/source/errors.go40
12 files changed, 206 insertions, 225 deletions
diff --git a/go/internal/packagesdriver/sizes.go b/go/internal/packagesdriver/sizes.go
index db0c9a7ea..5ee692d38 100644
--- a/go/internal/packagesdriver/sizes.go
+++ b/go/internal/packagesdriver/sizes.go
@@ -11,11 +11,10 @@ import (
"encoding/json"
"fmt"
"go/types"
- "log"
- "os"
"os/exec"
"strings"
- "time"
+
+ "golang.org/x/tools/internal/gocommand"
)
var debug = false
@@ -78,97 +77,42 @@ func GetSizes(ctx context.Context, buildFlags, env []string, dir string, usesExp
}
func GetSizesGolist(ctx context.Context, buildFlags, env []string, dir string, usesExportData bool) (types.Sizes, error) {
- args := []string{"list", "-f", "{{context.GOARCH}} {{context.Compiler}}"}
- args = append(args, buildFlags...)
- args = append(args, "--", "unsafe")
- stdout, stderr, err := invokeGo(ctx, env, dir, usesExportData, args...)
+ inv := gocommand.Invocation{
+ Verb: "list",
+ Args: []string{"-f", "{{context.GOARCH}} {{context.Compiler}}", "--", "unsafe"},
+ Env: env,
+ BuildFlags: buildFlags,
+ WorkingDir: dir,
+ }
+ stdout, stderr, friendlyErr, rawErr := inv.RunRaw(ctx)
var goarch, compiler string
- if err != nil {
- if strings.Contains(err.Error(), "cannot find main module") {
+ if rawErr != nil {
+ if strings.Contains(rawErr.Error(), "cannot find main module") {
// User's running outside of a module. All bets are off. Get GOARCH and guess compiler is gc.
// TODO(matloob): Is this a problem in practice?
- envout, _, enverr := invokeGo(ctx, env, dir, usesExportData, "env", "GOARCH")
+ inv := gocommand.Invocation{
+ Verb: "env",
+ Args: []string{"GOARCH"},
+ Env: env,
+ WorkingDir: dir,
+ }
+ envout, enverr := inv.Run(ctx)
if enverr != nil {
- return nil, err
+ return nil, enverr
}
goarch = strings.TrimSpace(envout.String())
compiler = "gc"
} else {
- return nil, err
+ return nil, friendlyErr
}
} else {
fields := strings.Fields(stdout.String())
if len(fields) < 2 {
- return nil, fmt.Errorf("could not parse GOARCH and Go compiler in format \"<GOARCH> <compiler>\" from stdout of go command:\n%s\ndir: %s\nstdout: <<%s>>\nstderr: <<%s>>",
- cmdDebugStr(env, args...), dir, stdout.String(), stderr.String())
+ return nil, fmt.Errorf("could not parse GOARCH and Go compiler in format \"<GOARCH> <compiler>\":\nstdout: <<%s>>\nstderr: <<%s>>",
+ stdout.String(), stderr.String())
}
goarch = fields[0]
compiler = fields[1]
}
return types.SizesFor(compiler, goarch), nil
}
-
-// invokeGo returns the stdout and stderr of a go command invocation.
-func invokeGo(ctx context.Context, env []string, dir string, usesExportData bool, args ...string) (*bytes.Buffer, *bytes.Buffer, error) {
- if debug {
- defer func(start time.Time) { log.Printf("%s for %v", time.Since(start), cmdDebugStr(env, args...)) }(time.Now())
- }
- stdout := new(bytes.Buffer)
- stderr := new(bytes.Buffer)
- cmd := exec.CommandContext(ctx, "go", args...)
- // On darwin the cwd gets resolved to the real path, which breaks anything that
- // expects the working directory to keep the original path, including the
- // go command when dealing with modules.
- // The Go stdlib has a special feature where if the cwd and the PWD are the
- // same node then it trusts the PWD, so by setting it in the env for the child
- // process we fix up all the paths returned by the go command.
- cmd.Env = append(append([]string{}, env...), "PWD="+dir)
- cmd.Dir = dir
- cmd.Stdout = stdout
- cmd.Stderr = stderr
- if err := cmd.Run(); err != nil {
- exitErr, ok := err.(*exec.ExitError)
- if !ok {
- // Catastrophic error:
- // - executable not found
- // - context cancellation
- return nil, nil, fmt.Errorf("couldn't exec 'go %v': %s %T", args, err, err)
- }
-
- // Export mode entails a build.
- // If that build fails, errors appear on stderr
- // (despite the -e flag) and the Export field is blank.
- // Do not fail in that case.
- if !usesExportData {
- return nil, nil, fmt.Errorf("go %v: %s: %s", args, exitErr, stderr)
- }
- }
-
- // As of writing, go list -export prints some non-fatal compilation
- // errors to stderr, even with -e set. We would prefer that it put
- // them in the Package.Error JSON (see https://golang.org/issue/26319).
- // In the meantime, there's nowhere good to put them, but they can
- // be useful for debugging. Print them if $GOPACKAGESPRINTGOLISTERRORS
- // is set.
- if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTGOLISTERRORS") != "" {
- fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(env, args...), stderr)
- }
-
- // debugging
- if false {
- fmt.Fprintf(os.Stderr, "%s stdout: <<%s>>\n", cmdDebugStr(env, args...), stdout)
- }
-
- return stdout, stderr, nil
-}
-
-func cmdDebugStr(envlist []string, args ...string) string {
- env := make(map[string]string)
- for _, kv := range envlist {
- split := strings.Split(kv, "=")
- k, v := split[0], split[1]
- env[k] = v
- }
-
- return fmt.Sprintf("GOROOT=%v GOPATH=%v GO111MODULE=%v PWD=%v go %v", env["GOROOT"], env["GOPATH"], env["GO111MODULE"], env["PWD"], args)
-}
diff --git a/go/packages/golist.go b/go/packages/golist.go
index 459f4addf..b4a13ef45 100644
--- a/go/packages/golist.go
+++ b/go/packages/golist.go
@@ -20,10 +20,10 @@ import (
"strconv"
"strings"
"sync"
- "time"
"unicode"
"golang.org/x/tools/go/internal/packagesdriver"
+ "golang.org/x/tools/internal/gocommand"
"golang.org/x/tools/internal/packagesinternal"
)
@@ -707,29 +707,17 @@ func golistargs(cfg *Config, words []string) []string {
func (state *golistState) invokeGo(verb string, args ...string) (*bytes.Buffer, error) {
cfg := state.cfg
- stdout := new(bytes.Buffer)
- stderr := new(bytes.Buffer)
- goArgs := []string{verb}
- if verb != "env" {
- goArgs = append(goArgs, cfg.BuildFlags...)
- }
- goArgs = append(goArgs, args...)
- cmd := exec.CommandContext(state.ctx, "go", goArgs...)
- // On darwin the cwd gets resolved to the real path, which breaks anything that
- // expects the working directory to keep the original path, including the
- // go command when dealing with modules.
- // The Go stdlib has a special feature where if the cwd and the PWD are the
- // same node then it trusts the PWD, so by setting it in the env for the child
- // process we fix up all the paths returned by the go command.
- cmd.Env = append(append([]string{}, cfg.Env...), "PWD="+cfg.Dir)
- cmd.Dir = cfg.Dir
- cmd.Stdout = stdout
- cmd.Stderr = stderr
- defer func(start time.Time) {
- cfg.Logf("%s for %v, stderr: <<%s>> stdout: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, goArgs...), stderr, stdout)
- }(time.Now())
-
- if err := cmd.Run(); err != nil {
+ inv := &gocommand.Invocation{
+ Verb: verb,
+ Args: args,
+ BuildFlags: cfg.BuildFlags,
+ Env: cfg.Env,
+ Logf: cfg.Logf,
+ WorkingDir: cfg.Dir,
+ }
+
+ stdout, stderr, _, err := inv.RunRaw(cfg.Context)
+ if err != nil {
// Check for 'go' executable not being found.
if ee, ok := err.(*exec.Error); ok && ee.Err == exec.ErrNotFound {
return nil, fmt.Errorf("'go list' driver requires 'go', but %s", exec.ErrNotFound)
@@ -739,7 +727,7 @@ func (state *golistState) invokeGo(verb string, args ...string) (*bytes.Buffer,
if !ok {
// Catastrophic error:
// - context cancellation
- return nil, fmt.Errorf("couldn't exec 'go %v': %s %T", args, err, err)
+ return nil, fmt.Errorf("couldn't run 'go': %v", err)
}
// Old go version?
@@ -860,16 +848,6 @@ func (state *golistState) invokeGo(verb string, args ...string) (*bytes.Buffer,
return nil, fmt.Errorf("go %v: %s: %s", args, exitErr, stderr)
}
}
-
- // As of writing, go list -export prints some non-fatal compilation
- // errors to stderr, even with -e set. We would prefer that it put
- // them in the Package.Error JSON (see https://golang.org/issue/26319).
- // In the meantime, there's nowhere good to put them, but they can
- // be useful for debugging. Print them if $GOPACKAGESPRINTGOLISTERRORS
- // is set.
- if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTGOLISTERRORS") != "" {
- fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(cmd, args...), stderr)
- }
return stdout, nil
}
diff --git a/go/packages/packagestest/modules.go b/go/packages/packagestest/modules.go
index e393cdca0..8bf830ad4 100644
--- a/go/packages/packagestest/modules.go
+++ b/go/packages/packagestest/modules.go
@@ -6,17 +6,16 @@ package packagestest
import (
"archive/zip"
- "bytes"
+ "context"
"fmt"
"io/ioutil"
"os"
- "os/exec"
"path"
"path/filepath"
"regexp"
"strings"
- "golang.org/x/tools/go/packages"
+ "golang.org/x/tools/internal/gocommand"
)
// Modules is the exporter that produces module layouts.
@@ -170,7 +169,14 @@ func (modules) Finalize(exported *Exported) error {
// Run go mod download to recreate the mod cache dir with all the extra
// stuff in cache. All the files created by Export should be recreated.
- if err := invokeGo(exported.Config, "mod", "download"); err != nil {
+ inv := gocommand.Invocation{
+ Verb: "mod",
+ Args: []string{"download"},
+ Env: exported.Config.Env,
+ BuildFlags: exported.Config.BuildFlags,
+ WorkingDir: exported.Config.Dir,
+ }
+ if _, err := inv.Run(context.Background()); err != nil {
return err
}
return nil
@@ -237,20 +243,6 @@ func writeModuleProxy(dir, module, ver string, files map[string]string) error {
return nil
}
-func invokeGo(cfg *packages.Config, args ...string) error {
- stdout := new(bytes.Buffer)
- stderr := new(bytes.Buffer)
- cmd := exec.Command("go", args...)
- cmd.Env = append(append([]string{}, cfg.Env...), "PWD="+cfg.Dir)
- cmd.Dir = cfg.Dir
- cmd.Stdout = stdout
- cmd.Stderr = stderr
- if err := cmd.Run(); err != nil {
- return fmt.Errorf("go %v: %s: %s", args, err, stderr)
- }
- return nil
-}
-
func modCache(exported *Exported) string {
return filepath.Join(exported.temp, "modcache/pkg/mod")
}
diff --git a/internal/gocommand/invoke.go b/internal/gocommand/invoke.go
new file mode 100644
index 000000000..26cf7b18e
--- /dev/null
+++ b/internal/gocommand/invoke.go
@@ -0,0 +1,92 @@
+// Package gocommand is a helper for calling the go command.
+package gocommand
+
+import (
+ "bytes"
+ "context"
+ "fmt"
+ "os/exec"
+ "strings"
+ "time"
+)
+
+// An Invocation represents a call to the go command.
+type Invocation struct {
+ Verb string
+ Args []string
+ BuildFlags []string
+ Env []string
+ WorkingDir string
+ Logf func(format string, args ...interface{})
+}
+
+// Run runs the invocation, returning its stdout and an error suitable for
+// human consumption, including stderr.
+func (i *Invocation) Run(ctx context.Context) (*bytes.Buffer, error) {
+ stdout, _, friendly, _ := i.RunRaw(ctx)
+ return stdout, friendly
+}
+
+// RunRaw is like Run, but also returns the raw stderr and error for callers
+// that want to do low-level error handling/recovery.
+func (i *Invocation) RunRaw(ctx context.Context) (stdout *bytes.Buffer, stderr *bytes.Buffer, friendlyError error, rawError error) {
+ log := i.Logf
+ if log == nil {
+ log = func(string, ...interface{}) {}
+ }
+
+ goArgs := []string{i.Verb}
+ switch i.Verb {
+ case "mod":
+ // mod needs the sub-verb before build flags.
+ goArgs = append(goArgs, i.Args[0])
+ goArgs = append(goArgs, i.BuildFlags...)
+ goArgs = append(goArgs, i.Args[1:]...)
+ case "env":
+ // env doesn't take build flags.
+ goArgs = append(goArgs, i.Args...)
+ default:
+ goArgs = append(goArgs, i.BuildFlags...)
+ goArgs = append(goArgs, i.Args...)
+ }
+ cmd := exec.CommandContext(ctx, "go", goArgs...)
+ stdout = &bytes.Buffer{}
+ stderr = &bytes.Buffer{}
+ cmd.Stdout = stdout
+ cmd.Stderr = stderr
+ // On darwin the cwd gets resolved to the real path, which breaks anything that
+ // expects the working directory to keep the original path, including the
+ // go command when dealing with modules.
+ // The Go stdlib has a special feature where if the cwd and the PWD are the
+ // same node then it trusts the PWD, so by setting it in the env for the child
+ // process we fix up all the paths returned by the go command.
+ cmd.Env = append(append([]string{}, i.Env...), "PWD="+i.WorkingDir)
+ cmd.Dir = i.WorkingDir
+
+ defer func(start time.Time) { log("%s for %v", time.Since(start), cmdDebugStr(cmd)) }(time.Now())
+
+ rawError = cmd.Run()
+ friendlyError = rawError
+ if rawError != nil {
+ // Check for 'go' executable not being found.
+ if ee, ok := rawError.(*exec.Error); ok && ee.Err == exec.ErrNotFound {
+ friendlyError = fmt.Errorf("go command required, not found: %v", ee)
+ }
+ if ctx.Err() != nil {
+ friendlyError = ctx.Err()
+ }
+ friendlyError = fmt.Errorf("err: %v: stderr: %s", rawError, stderr)
+ }
+ return
+}
+
+func cmdDebugStr(cmd *exec.Cmd) string {
+ env := make(map[string]string)
+ for _, kv := range cmd.Env {
+ split := strings.Split(kv, "=")
+ k, v := split[0], split[1]
+ env[k] = v
+ }
+
+ return fmt.Sprintf("GOROOT=%v GOPATH=%v GO111MODULE=%v GOPROXY=%v PWD=%v go %v", env["GOROOT"], env["GOPATH"], env["GO111MODULE"], env["GOPROXY"], env["PWD"], cmd.Args)
+}
diff --git a/internal/imports/fix.go b/internal/imports/fix.go
index ee01d34b1..5e0c9dff0 100644
--- a/internal/imports/fix.go
+++ b/internal/imports/fix.go
@@ -14,7 +14,6 @@ import (
"go/token"
"io/ioutil"
"os"
- "os/exec"
"path"
"path/filepath"
"reflect"
@@ -22,11 +21,11 @@ import (
"strconv"
"strings"
"sync"
- "time"
"unicode"
"unicode/utf8"
"golang.org/x/tools/go/ast/astutil"
+ "golang.org/x/tools/internal/gocommand"
"golang.org/x/tools/internal/gopathwalk"
)
@@ -792,7 +791,7 @@ func (e *ProcessEnv) GetResolver() Resolver {
if e.resolver != nil {
return e.resolver
}
- out, err := e.invokeGo("env", "GOMOD")
+ out, err := e.invokeGo(context.TODO(), "env", "GOMOD")
if err != nil || len(bytes.TrimSpace(out.Bytes())) == 0 {
e.resolver = newGopathResolver(e)
return e.resolver
@@ -823,38 +822,16 @@ func (e *ProcessEnv) buildContext() *build.Context {
return &ctx
}
-func (e *ProcessEnv) invokeGo(verb string, args ...string) (*bytes.Buffer, error) {
- goArgs := []string{verb}
- if verb != "env" {
- goArgs = append(goArgs, e.BuildFlags...)
+func (e *ProcessEnv) invokeGo(ctx context.Context, verb string, args ...string) (*bytes.Buffer, error) {
+ inv := gocommand.Invocation{
+ Verb: verb,
+ Args: args,
+ BuildFlags: e.BuildFlags,
+ Env: e.env(),
+ Logf: e.Logf,
+ WorkingDir: e.WorkingDir,
}
- goArgs = append(goArgs, args...)
- cmd := exec.Command("go", goArgs...)
- stdout := &bytes.Buffer{}
- stderr := &bytes.Buffer{}
- cmd.Stdout = stdout
- cmd.Stderr = stderr
- cmd.Env = e.env()
- cmd.Dir = e.WorkingDir
-
- if e.Debug {
- defer func(start time.Time) { e.Logf("%s for %v", time.Since(start), cmdDebugStr(cmd)) }(time.Now())
- }
- if err := cmd.Run(); err != nil {
- return nil, fmt.Errorf("running go: %v (stderr:\n%s)", err, stderr)
- }
- return stdout, nil
-}
-
-func cmdDebugStr(cmd *exec.Cmd) string {
- env := make(map[string]string)
- for _, kv := range cmd.Env {
- split := strings.Split(kv, "=")
- k, v := split[0], split[1]
- env[k] = v
- }
-
- return fmt.Sprintf("GOROOT=%v GOPATH=%v GO111MODULE=%v GOPROXY=%v PWD=%v go %v", env["GOROOT"], env["GOPATH"], env["GO111MODULE"], env["GOPROXY"], env["PWD"], cmd.Args)
+ return inv.Run(ctx)
}
func addStdlibCandidates(pass *pass, refs references) {
diff --git a/internal/imports/mod.go b/internal/imports/mod.go
index c0310e6fb..28d4b1ff3 100644
--- a/internal/imports/mod.go
+++ b/internal/imports/mod.go
@@ -146,7 +146,7 @@ func (r *ModuleResolver) init() error {
}
func (r *ModuleResolver) initAllMods() error {
- stdout, err := r.env.invokeGo("list", "-m", "-json", "...")
+ stdout, err := r.env.invokeGo(context.TODO(), "list", "-m", "-json", "...")
if err != nil {
return err
}
@@ -699,7 +699,7 @@ func getMainModuleAnd114(env *ProcessEnv) (*ModuleJSON, bool, error) {
{{.GoVersion}}
{{range context.ReleaseTags}}{{if eq . "go1.14"}}{{.}}{{end}}{{end}}
`
- stdout, err := env.invokeGo("list", "-m", "-f", format)
+ stdout, err := env.invokeGo(context.TODO(), "list", "-m", "-f", format)
if err != nil {
return nil, false, nil
}
diff --git a/internal/imports/mod_112_test.go b/internal/imports/mod_112_test.go
index 0305f489f..106db7c61 100644
--- a/internal/imports/mod_112_test.go
+++ b/internal/imports/mod_112_test.go
@@ -3,6 +3,7 @@
package imports
import (
+ "context"
"testing"
)
@@ -13,7 +14,7 @@ func TestNoMainModule(t *testing.T) {
package x
`, "")
defer mt.cleanup()
- if _, err := mt.env.invokeGo("mod", "download", "rsc.io/quote@v1.5.1"); err != nil {
+ if _, err := mt.env.invokeGo(context.Background(), "mod", "download", "rsc.io/quote@v1.5.1"); err != nil {
t.Fatal(err)
}
diff --git a/internal/imports/mod_test.go b/internal/imports/mod_test.go
index 4df9c0212..8df024fd0 100644
--- a/internal/imports/mod_test.go
+++ b/internal/imports/mod_test.go
@@ -231,10 +231,10 @@ import _ "rsc.io/sampler"
mt.assertModuleFoundInDir("rsc.io/sampler", "sampler", `pkg.*mod.*/sampler@.*$`)
// Populate vendor/ and clear out the mod cache so we can't cheat.
- if _, err := mt.env.invokeGo("mod", "vendor"); err != nil {
+ if _, err := mt.env.invokeGo(context.Background(), "mod", "vendor"); err != nil {
t.Fatal(err)
}
- if _, err := mt.env.invokeGo("clean", "-modcache"); err != nil {
+ if _, err := mt.env.invokeGo(context.Background(), "clean", "-modcache"); err != nil {
t.Fatal(err)
}
@@ -259,7 +259,7 @@ import _ "rsc.io/sampler"
defer mt.cleanup()
// Populate vendor/.
- if _, err := mt.env.invokeGo("mod", "vendor"); err != nil {
+ if _, err := mt.env.invokeGo(context.Background(), "mod", "vendor"); err != nil {
t.Fatal(err)
}
@@ -686,7 +686,7 @@ func setup(t *testing.T, main, wd string) *modTest {
t.Fatalf("checking if go.mod exists: %v", err)
}
if err == nil {
- if _, err := env.invokeGo("mod", "download"); err != nil {
+ if _, err := env.invokeGo(context.Background(), "mod", "download"); err != nil {
t.Fatal(err)
}
}
@@ -868,7 +868,7 @@ import _ "rsc.io/quote"
`, "")
defer mt.cleanup()
- if _, err := mt.env.invokeGo("mod", "download", "rsc.io/quote/v2@v2.0.1"); err != nil {
+ if _, err := mt.env.invokeGo(context.Background(), "mod", "download", "rsc.io/quote/v2@v2.0.1"); err != nil {
t.Fatal(err)
}
diff --git a/internal/lsp/cache/mod.go b/internal/lsp/cache/mod.go
index 1241c8b68..54a0749b2 100644
--- a/internal/lsp/cache/mod.go
+++ b/internal/lsp/cache/mod.go
@@ -15,6 +15,7 @@ import (
"golang.org/x/mod/modfile"
"golang.org/x/tools/go/packages"
+ "golang.org/x/tools/internal/gocommand"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/lsp/telemetry"
@@ -169,10 +170,14 @@ func dependencyUpgrades(ctx context.Context, cfg *packages.Config, folder string
return nil, nil
}
// Run "go list -u -m all" to be able to see which deps can be upgraded.
- args := []string{"list"}
- args = append(args, cfg.BuildFlags...)
- args = append(args, []string{"-u", "-m", "all"}...)
- stdout, err := source.InvokeGo(ctx, folder, cfg.Env, args...)
+ inv := gocommand.Invocation{
+ Verb: "list",
+ Args: []string{"-u", "-m", "all"},
+ BuildFlags: cfg.BuildFlags,
+ Env: cfg.Env,
+ WorkingDir: folder,
+ }
+ stdout, err := inv.Run(ctx)
if err != nil {
return nil, err
}
@@ -273,8 +278,14 @@ func (s *snapshot) ModTidyHandle(ctx context.Context, realfh source.FileHandle)
}
// We want to run "go mod tidy" to be able to diff between the real and the temp files.
- args := append([]string{"mod", "tidy"}, cfg.BuildFlags...)
- if _, err := source.InvokeGo(ctx, folder, cfg.Env, args...); err != nil {
+ inv := gocommand.Invocation{
+ Verb: "mod",
+ Args: []string{"tidy"},
+ BuildFlags: cfg.BuildFlags,
+ Env: cfg.Env,
+ WorkingDir: folder,
+ }
+ if _, err := inv.Run(ctx); err != nil {
// Ignore concurrency errors here.
if !modConcurrencyError.MatchString(err.Error()) {
data.err = err
diff --git a/internal/lsp/cache/view.go b/internal/lsp/cache/view.go
index 739f7c448..2922460b1 100644
--- a/internal/lsp/cache/view.go
+++ b/internal/lsp/cache/view.go
@@ -21,6 +21,7 @@ import (
"time"
"golang.org/x/tools/go/packages"
+ "golang.org/x/tools/internal/gocommand"
"golang.org/x/tools/internal/imports"
"golang.org/x/tools/internal/lsp/source"
"golang.org/x/tools/internal/lsp/telemetry"
@@ -685,12 +686,18 @@ func (v *view) getGoEnv(ctx context.Context, env []string) (string, error) {
gopackagesdriver = true
}
}
- b, err := source.InvokeGo(ctx, v.folder.Filename(), env, "env", "-json")
+ inv := gocommand.Invocation{
+ Verb: "env",
+ Args: []string{"-json"},
+ Env: env,
+ WorkingDir: v.Folder().Filename(),
+ }
+ stdout, err := inv.Run(ctx)
if err != nil {
return "", err
}
envMap := make(map[string]string)
- decoder := json.NewDecoder(b)
+ decoder := json.NewDecoder(stdout)
if err := decoder.Decode(&envMap); err != nil {
return "", err
}
@@ -769,7 +776,13 @@ func (v *view) modfileFlagExists(ctx context.Context, env []string) (bool, error
// Borrowed from internal/imports/mod.go:620.
const format = `{{range context.ReleaseTags}}{{if eq . "go1.14"}}{{.}}{{end}}{{end}}`
folder := v.folder.Filename()
- stdout, err := source.InvokeGo(ctx, folder, append(env, "GO111MODULE=off"), "list", "-e", "-f", format)
+ inv := gocommand.Invocation{
+ Verb: "list",
+ Args: []string{"-e", "-f", format},
+ Env: append(env, "GO111MODULE=off"),
+ WorkingDir: v.Folder().Filename(),
+ }
+ stdout, err := inv.Run(ctx)
if err != nil {
return false, err
}
diff --git a/internal/lsp/command.go b/internal/lsp/command.go
index a7907e67f..4c0ad878d 100644
--- a/internal/lsp/command.go
+++ b/internal/lsp/command.go
@@ -3,6 +3,7 @@ package lsp
import (
"context"
+ "golang.org/x/tools/internal/gocommand"
"golang.org/x/tools/internal/lsp/protocol"
"golang.org/x/tools/internal/lsp/source"
errors "golang.org/x/xerrors"
@@ -20,7 +21,13 @@ func (s *Server) executeCommand(ctx context.Context, params *protocol.ExecuteCom
return nil, err
}
// Run go.mod tidy on the view.
- if _, err := source.InvokeGo(ctx, snapshot.View().Folder().Filename(), snapshot.Config(ctx).Env, "mod", "tidy"); err != nil {
+ inv := gocommand.Invocation{
+ Verb: "mod",
+ Args: []string{"tidy"},
+ Env: snapshot.Config(ctx).Env,
+ WorkingDir: snapshot.View().Folder().Filename(),
+ }
+ if _, err := inv.Run(ctx); err != nil {
return nil, err
}
case "upgrade.dependency":
@@ -34,7 +41,13 @@ func (s *Server) executeCommand(ctx context.Context, params *protocol.ExecuteCom
}
dep := params.Arguments[1].(string)
// Run "go get" on the dependency to upgrade it to the latest version.
- if _, err := source.InvokeGo(ctx, snapshot.View().Folder().Filename(), snapshot.Config(ctx).Env, "get", dep); err != nil {
+ inv := gocommand.Invocation{
+ Verb: "get",
+ Args: []string{dep},
+ Env: snapshot.Config(ctx).Env,
+ WorkingDir: snapshot.View().Folder().Filename(),
+ }
+ if _, err := inv.Run(ctx); err != nil {
return nil, err
}
}
diff --git a/internal/lsp/source/errors.go b/internal/lsp/source/errors.go
deleted file mode 100644
index 585860357..000000000
--- a/internal/lsp/source/errors.go
+++ /dev/null
@@ -1,40 +0,0 @@
-package source
-
-import (
- "bytes"
- "context"
- "fmt"
- "os/exec"
-
- errors "golang.org/x/xerrors"
-)
-
-// InvokeGo returns the output of a go command invocation.
-// It does not try to recover from errors.
-func InvokeGo(ctx context.Context, dir string, env []string, args ...string) (*bytes.Buffer, error) {
- stdout := new(bytes.Buffer)
- stderr := new(bytes.Buffer)
- cmd := exec.CommandContext(ctx, "go", args...)
- // On darwin the cwd gets resolved to the real path, which breaks anything that
- // expects the working directory to keep the original path, including the
- // go command when dealing with modules.
- // The Go stdlib has a special feature where if the cwd and the PWD are the
- // same node then it trusts the PWD, so by setting it in the env for the child
- // process we fix up all the paths returned by the go command.
- cmd.Env = append(append([]string{}, env...), "PWD="+dir)
- cmd.Dir = dir
- cmd.Stdout = stdout
- cmd.Stderr = stderr
-
- if err := cmd.Run(); err != nil {
- // Check for 'go' executable not being found.
- if ee, ok := err.(*exec.Error); ok && ee.Err == exec.ErrNotFound {
- return nil, fmt.Errorf("'gopls requires 'go', but %s", exec.ErrNotFound)
- }
- if ctx.Err() != nil {
- return nil, ctx.Err()
- }
- return stdout, errors.Errorf("err: %v: stderr: %s", err, stderr)
- }
- return stdout, nil
-}