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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
3 files changed, 46 insertions, 132 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")
}