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internal/lsp/cache: move mod-related functions and file
This is a pure move with no code changes. Rename parse_mod.go to mod_tidy.go since it's changed a bit. Move the modfile.go functions into view.go since (1) Heschi doesn't like spreading methods into multiple files and (2) it only has 2 functions in it anyway. Change-Id: If0d7e4b50ac22c57302d90d68c2181dbb3ca8b87 Reviewed-on: https://go-review.googlesource.com/c/tools/+/216142 Reviewed-by: Rohan Challa <rohan@golang.org> Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Rebecca Stambler
Rohan Challa
parent
9778d966fa
commit
e0a7ba33ca
102
internal/lsp/cache/modfiles.go
vendored
102
internal/lsp/cache/modfiles.go
vendored
@ -1,102 +0,0 @@
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// 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 cache
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import (
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"context"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"golang.org/x/tools/internal/lsp/source"
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"golang.org/x/tools/internal/lsp/telemetry"
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"golang.org/x/tools/internal/span"
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"golang.org/x/tools/internal/telemetry/log"
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errors "golang.org/x/xerrors"
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)
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// This function will return the main go.mod file for this folder if it exists and whether the -modfile
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// flag exists for this version of go.
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func (v *view) modfileFlagExists(ctx context.Context, env []string) (bool, error) {
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// Check the go version by running "go list" with modules off.
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// Borrowed from internal/imports/mod.go:620.
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const format = `{{range context.ReleaseTags}}{{if eq . "go1.14"}}{{.}}{{end}}{{end}}`
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folder := v.folder.Filename()
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stdout, err := source.InvokeGo(ctx, folder, append(env, "GO111MODULE=off"), "list", "-e", "-f", format)
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if err != nil {
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return false, err
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}
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// If the output is not go1.14 or an empty string, then it could be an error.
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lines := strings.Split(stdout.String(), "\n")
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if len(lines) < 2 && stdout.String() != "" {
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log.Error(ctx, "unexpected stdout when checking for go1.14", errors.Errorf("%q", stdout), telemetry.Directory.Of(folder))
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return false, nil
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}
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return lines[0] == "go1.14", nil
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}
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func (v *view) setModuleInformation(ctx context.Context, gomod string, modfileFlagEnabled bool) error {
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modFile := strings.TrimSpace(gomod)
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if modFile == os.DevNull {
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return nil
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}
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v.mod = moduleInformation{
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realMod: span.FileURI(modFile),
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}
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// The user has disabled the use of the -modfile flag.
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if !modfileFlagEnabled {
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return nil
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}
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if modfileFlag, err := v.modfileFlagExists(ctx, v.Options().Env); err != nil {
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return err
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} else if !modfileFlag {
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return nil
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}
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// Copy the current go.mod file into the temporary go.mod file.
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// The file's name will be of the format go.1234.mod.
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// It's temporary go.sum file should have the corresponding format of go.1234.sum.
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tempModFile, err := ioutil.TempFile("", "go.*.mod")
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if err != nil {
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return err
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}
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defer tempModFile.Close()
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origFile, err := os.Open(modFile)
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if err != nil {
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return err
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}
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defer origFile.Close()
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if _, err := io.Copy(tempModFile, origFile); err != nil {
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return err
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}
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v.mod.tempMod = span.FileURI(tempModFile.Name())
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// Copy go.sum file as well (if there is one).
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sumFile := filepath.Join(filepath.Dir(modFile), "go.sum")
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stat, err := os.Stat(sumFile)
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if err != nil || !stat.Mode().IsRegular() {
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return nil
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}
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contents, err := ioutil.ReadFile(sumFile)
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if err != nil {
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return err
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}
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if err := ioutil.WriteFile(tempSumFile(tempModFile.Name()), contents, stat.Mode()); err != nil {
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return err
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}
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return nil
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}
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// tempSumFile returns the path to the copied temporary go.sum file.
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// It simply replaces the extension of the temporary go.mod file with "sum".
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func tempSumFile(filename string) string {
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if filename == "" {
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return ""
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}
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return filename[:len(filename)-len("mod")] + "sum"
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}
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85
internal/lsp/cache/view.go
vendored
85
internal/lsp/cache/view.go
vendored
@ -11,6 +11,8 @@ import (
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"fmt"
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"go/ast"
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"go/token"
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"io"
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"io/ioutil"
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stdlog "log"
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"os"
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"path/filepath"
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@ -23,6 +25,7 @@ import (
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"golang.org/x/tools/internal/imports"
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"golang.org/x/tools/internal/lsp/debug"
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"golang.org/x/tools/internal/lsp/source"
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"golang.org/x/tools/internal/lsp/telemetry"
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"golang.org/x/tools/internal/memoize"
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"golang.org/x/tools/internal/span"
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"golang.org/x/tools/internal/telemetry/log"
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@ -660,3 +663,85 @@ func (v *view) setGoEnv(ctx context.Context, dir string, env []string) (string,
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}
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return "", nil
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}
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// This function will return the main go.mod file for this folder if it exists and whether the -modfile
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// flag exists for this version of go.
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func (v *view) modfileFlagExists(ctx context.Context, env []string) (bool, error) {
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// Check the go version by running "go list" with modules off.
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// Borrowed from internal/imports/mod.go:620.
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const format = `{{range context.ReleaseTags}}{{if eq . "go1.14"}}{{.}}{{end}}{{end}}`
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folder := v.folder.Filename()
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stdout, err := source.InvokeGo(ctx, folder, append(env, "GO111MODULE=off"), "list", "-e", "-f", format)
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if err != nil {
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return false, err
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}
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// If the output is not go1.14 or an empty string, then it could be an error.
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lines := strings.Split(stdout.String(), "\n")
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if len(lines) < 2 && stdout.String() != "" {
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log.Error(ctx, "unexpected stdout when checking for go1.14", errors.Errorf("%q", stdout), telemetry.Directory.Of(folder))
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return false, nil
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}
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return lines[0] == "go1.14", nil
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}
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func (v *view) setModuleInformation(ctx context.Context, gomod string, modfileFlagEnabled bool) error {
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modFile := strings.TrimSpace(gomod)
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if modFile == os.DevNull {
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return nil
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}
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v.mod = moduleInformation{
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realMod: span.FileURI(modFile),
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}
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// The user has disabled the use of the -modfile flag.
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if !modfileFlagEnabled {
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return nil
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}
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if modfileFlag, err := v.modfileFlagExists(ctx, v.Options().Env); err != nil {
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return err
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} else if !modfileFlag {
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return nil
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}
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// Copy the current go.mod file into the temporary go.mod file.
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// The file's name will be of the format go.1234.mod.
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// It's temporary go.sum file should have the corresponding format of go.1234.sum.
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tempModFile, err := ioutil.TempFile("", "go.*.mod")
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if err != nil {
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return err
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}
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defer tempModFile.Close()
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origFile, err := os.Open(modFile)
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if err != nil {
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return err
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}
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defer origFile.Close()
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if _, err := io.Copy(tempModFile, origFile); err != nil {
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return err
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}
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v.mod.tempMod = span.FileURI(tempModFile.Name())
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// Copy go.sum file as well (if there is one).
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sumFile := filepath.Join(filepath.Dir(modFile), "go.sum")
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stat, err := os.Stat(sumFile)
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if err != nil || !stat.Mode().IsRegular() {
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return nil
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}
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contents, err := ioutil.ReadFile(sumFile)
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if err != nil {
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return err
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}
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if err := ioutil.WriteFile(tempSumFile(tempModFile.Name()), contents, stat.Mode()); err != nil {
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return err
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}
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return nil
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}
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// tempSumFile returns the path to the copied temporary go.sum file.
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// It simply replaces the extension of the temporary go.mod file with "sum".
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func tempSumFile(filename string) string {
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if filename == "" {
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return ""
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}
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return filename[:len(filename)-len("mod")] + "sum"
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}
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