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cmd/go: remove import path debugging hooks

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These are no longer needed.

Change-Id: Ie42a84f2bd24d2f59324bb66551c46e6af60c302
Reviewed-on: https://go-review.googlesource.com/109339
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
This commit is contained in:
Russ Cox 2018-04-25 09:38:56 -04:00
parent 5bd88b028b
commit 670cb7603a
3 changed files with 7 additions and 108 deletions
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78
src/cmd/go/internal/load/icfg.go
View File

@ -1,78 +0,0 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package load
import (
"bytes"
"encoding/json"
"errors"
"io/ioutil"
)
// DebugDeprecatedImportcfg is installed as the undocumented -debug-deprecated-importcfg build flag.
// It is useful for debugging subtle problems in the go command logic but not something
// we want users to depend on. The hope is that the "deprecated" will make that clear.
// We intend to remove this flag in Go 1.11.
var DebugDeprecatedImportcfg debugDeprecatedImportcfgFlag
type debugDeprecatedImportcfgFlag struct {
enabled bool
Import map[string]string
Pkg map[string]*debugDeprecatedImportcfgPkg
}
type debugDeprecatedImportcfgPkg struct {
Dir string
Import map[string]string
}
var (
debugDeprecatedImportcfgMagic = []byte("# debug-deprecated-importcfg\n")
errImportcfgSyntax = errors.New("malformed syntax")
)
func (f *debugDeprecatedImportcfgFlag) String() string { return "" }
func (f *debugDeprecatedImportcfgFlag) Set(x string) error {
if x == "" {
*f = debugDeprecatedImportcfgFlag{}
return nil
}
data, err := ioutil.ReadFile(x)
if err != nil {
return err
}
if !bytes.HasPrefix(data, debugDeprecatedImportcfgMagic) {
return errImportcfgSyntax
}
data = data[len(debugDeprecatedImportcfgMagic):]
f.Import = nil
f.Pkg = nil
if err := json.Unmarshal(data, &f); err != nil {
return errImportcfgSyntax
}
f.enabled = true
return nil
}
func (f *debugDeprecatedImportcfgFlag) lookup(parent *Package, path string) (dir, newPath string) {
newPath = path
if p := f.Import[path]; p != "" {
newPath = p
}
if parent != nil {
if p1 := f.Pkg[parent.ImportPath]; p1 != nil {
if p := p1.Import[path]; p != "" {
newPath = p
}
}
}
if p2 := f.Pkg[newPath]; p2 != nil {
return p2.Dir, newPath
}
return "", ""
}

36
src/cmd/go/internal/load/pkg.go
View File

@ -423,14 +423,8 @@ func LoadImport(path, srcDir string, parent *Package, stk *ImportStack, importPo
importPath := path
origPath := path
isLocal := build.IsLocalImport(path)
var debugDeprecatedImportcfgDir string
if isLocal {
importPath = dirToImportPath(filepath.Join(srcDir, path))
} else if DebugDeprecatedImportcfg.enabled {
if d, i := DebugDeprecatedImportcfg.lookup(parent, path); d != "" {
debugDeprecatedImportcfgDir = d
importPath = i
}
} else if mode&UseVendor != 0 {
// We do our own vendor resolution, because we want to
// find out the key to use in packageCache without the
@ -452,26 +446,17 @@ func LoadImport(path, srcDir string, parent *Package, stk *ImportStack, importPo
// Load package.
// Import always returns bp != nil, even if an error occurs,
// in order to return partial information.
var bp *build.Package
var err error
if debugDeprecatedImportcfgDir != "" {
bp, err = cfg.BuildContext.ImportDir(debugDeprecatedImportcfgDir, 0)
} else if DebugDeprecatedImportcfg.enabled {
bp = new(build.Package)
err = fmt.Errorf("unknown import path %q: not in import cfg", importPath)
} else {
buildMode := build.ImportComment
if mode&UseVendor == 0 || path != origPath {
// Not vendoring, or we already found the vendored path.
buildMode |= build.IgnoreVendor
}
bp, err = cfg.BuildContext.Import(path, srcDir, buildMode)
buildMode := build.ImportComment
if mode&UseVendor == 0 || path != origPath {
// Not vendoring, or we already found the vendored path.
buildMode |= build.IgnoreVendor
}
bp, err := cfg.BuildContext.Import(path, srcDir, buildMode)
bp.ImportPath = importPath
if cfg.GOBIN != "" {
bp.BinDir = cfg.GOBIN
}
if debugDeprecatedImportcfgDir == "" && err == nil && !isLocal && bp.ImportComment != "" && bp.ImportComment != path &&
if err == nil && !isLocal && bp.ImportComment != "" && bp.ImportComment != path &&
!strings.Contains(path, "/vendor/") && !strings.HasPrefix(path, "vendor/") {
err = fmt.Errorf("code in directory %s expects import %q", bp.Dir, bp.ImportComment)
}
@ -480,7 +465,7 @@ func LoadImport(path, srcDir string, parent *Package, stk *ImportStack, importPo
p = setErrorPos(p, importPos)
}
if debugDeprecatedImportcfgDir == "" && origPath != cleanImport(origPath) {
if origPath != cleanImport(origPath) {
p.Error = &PackageError{
ImportStack: stk.Copy(),
Err: fmt.Sprintf("non-canonical import path: %q should be %q", origPath, pathpkg.Clean(origPath)),
@ -557,13 +542,6 @@ func isDir(path string) bool {
// x/vendor/path, vendor/path, or else stay path if none of those exist.
// VendoredImportPath returns the expanded path or, if no expansion is found, the original.
func VendoredImportPath(parent *Package, path string) (found string) {
if DebugDeprecatedImportcfg.enabled {
if d, i := DebugDeprecatedImportcfg.lookup(parent, path); d != "" {
return i
}
return path
}
if parent == nil || parent.Root == "" {
return path
}

1
src/cmd/go/internal/work/build.go
View File

@ -229,7 +229,6 @@ func AddBuildFlags(cmd *base.Command) {
// Undocumented, unstable debugging flags.
cmd.Flag.StringVar(&cfg.DebugActiongraph, "debug-actiongraph", "", "")
cmd.Flag.Var(&load.DebugDeprecatedImportcfg, "debug-deprecated-importcfg", "")
}
// fileExtSplit expects a filename and returns the name