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play with fetching repo root for import path

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dmitshur committed Jun 29, 2019
1 parent 9dee89b commit 8a6ef1ecabbdbc09f37524c5233fad660fe15a1a
Showing with 2,250 additions and 0 deletions.
  1. +27 −0 263/auth/LICENSE
  2. +23 −0 263/auth/auth.go
  3. +111 −0 263/auth/netrc.go
  4. +27 −0 263/base/LICENSE
  5. +15 −0 263/base/env.go
  6. +27 −0 263/cfg/LICENSE
  7. +13 −0 263/cfg/cfg.go
  8. +27 −0 263/get/LICENSE
  9. +97 −0 263/get/discovery.go
  10. +195 −0 263/get/path.go
  11. +1,159 −0 263/get/vcs.go
  12. +28 −0 263/main.go
  13. +128 −0 263/web/api.go
  14. +214 −0 263/web/http.go
  15. +95 −0 263/web/url.go
  16. +21 −0 263/web/url_other.go
  17. +43 −0 263/web/url_windows.go
@@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,23 @@
// Copyright 2019 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 auth provides access to user-provided authentication credentials.
package auth

import "net/http"

// AddCredentials fills in the user's credentials for req, if any.
// The return value reports whether any matching credentials were found.
func AddCredentials(req *http.Request) (added bool) {
// TODO(golang.org/issue/26232): Support arbitrary user-provided credentials.
netrcOnce.Do(readNetrc)
for _, l := range netrc {
if l.machine == req.URL.Host {
req.SetBasicAuth(l.login, l.password)
return true
}
}

return false
}
@@ -0,0 +1,111 @@
// Copyright 2019 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 auth

import (
"io/ioutil"
"os"
"path/filepath"
"runtime"
"strings"
"sync"
)

type netrcLine struct {
machine string
login string
password string
}

var (
netrcOnce sync.Once
netrc []netrcLine
netrcErr error
)

func parseNetrc(data string) []netrcLine {
// See https://www.gnu.org/software/inetutils/manual/html_node/The-_002enetrc-file.html
// for documentation on the .netrc format.
var nrc []netrcLine
var l netrcLine
inMacro := false
for _, line := range strings.Split(data, "\n") {
if inMacro {
if line == "" {
inMacro = false
}
continue
}

f := strings.Fields(line)
i := 0
for ; i < len(f)-1; i += 2 {
// Reset at each "machine" token.
// “The auto-login process searches the .netrc file for a machine token
// that matches […]. Once a match is made, the subsequent .netrc tokens
// are processed, stopping when the end of file is reached or another
// machine or a default token is encountered.”
switch f[i] {
case "machine":
l = netrcLine{machine: f[i+1]}
case "default":
break
case "login":
l.login = f[i+1]
case "password":
l.password = f[i+1]
case "macdef":
// “A macro is defined with the specified name; its contents begin with
// the next .netrc line and continue until a null line (consecutive
// new-line characters) is encountered.”
inMacro = true
}
if l.machine != "" && l.login != "" && l.password != "" {
nrc = append(nrc, l)
l = netrcLine{}
}
}

if i < len(f) && f[i] == "default" {
// “There can be only one default token, and it must be after all machine tokens.”
break
}
}

return nrc
}

func netrcPath() (string, error) {
if env := os.Getenv("NETRC"); env != "" {
return env, nil
}
dir, err := os.UserHomeDir()
if err != nil {
return "", err
}
base := ".netrc"
if runtime.GOOS == "windows" {
base = "_netrc"
}
return filepath.Join(dir, base), nil
}

func readNetrc() {
path, err := netrcPath()
if err != nil {
netrcErr = err
return
}

data, err := ioutil.ReadFile(path)
if err != nil {
if !os.IsNotExist(err) {
netrcErr = err
}
return
}

netrc = parseNetrc(string(data))
}
@@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,15 @@
// 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 base

// EnvForDir returns a modified environment suitable for running in the given
// directory.
// The environment is the supplied base environment but with an updated $PWD, so
// that an os.Getwd in the child will be faster.
func EnvForDir(dir string, base []string) []string {
// Internally we only use rooted paths, so dir is rooted.
// Even if dir is not rooted, no harm done.
return append(base, "PWD="+dir)
}
@@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,13 @@
// 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 cfg holds configuration shared by multiple parts
// of the go command.
package cfg

// These are general "build flags" used by build and other commands.
var (
BuildV bool = true // -v flag
BuildX bool = true // -x flag
)
@@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@@ -0,0 +1,97 @@
// Copyright 2012 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 get

import (
"encoding/xml"
"fmt"
"io"
"strings"
)

// charsetReader returns a reader for the given charset. Currently
// it only supports UTF-8 and ASCII. Otherwise, it returns a meaningful
// error which is printed by go get, so the user can find why the package
// wasn't downloaded if the encoding is not supported. Note that, in
// order to reduce potential errors, ASCII is treated as UTF-8 (i.e. characters
// greater than 0x7f are not rejected).
func charsetReader(charset string, input io.Reader) (io.Reader, error) {
switch strings.ToLower(charset) {
case "ascii":
return input, nil
default:
return nil, fmt.Errorf("can't decode XML document using charset %q", charset)
}
}

// parseMetaGoImports returns meta imports from the HTML in r.
// Parsing ends at the end of the <head> section or the beginning of the <body>.
func parseMetaGoImports(r io.Reader, mod ModuleMode) (imports []metaImport, err error) {
d := xml.NewDecoder(r)
d.CharsetReader = charsetReader
d.Strict = false
var t xml.Token
for {
t, err = d.RawToken()
if err != nil {
if err == io.EOF || len(imports) > 0 {
err = nil
}
break
}
if e, ok := t.(xml.StartElement); ok && strings.EqualFold(e.Name.Local, "body") {
break
}
if e, ok := t.(xml.EndElement); ok && strings.EqualFold(e.Name.Local, "head") {
break
}
e, ok := t.(xml.StartElement)
if !ok || !strings.EqualFold(e.Name.Local, "meta") {
continue
}
if attrValue(e.Attr, "name") != "go-import" {
continue
}
if f := strings.Fields(attrValue(e.Attr, "content")); len(f) == 3 {
imports = append(imports, metaImport{
Prefix: f[0],
VCS: f[1],
RepoRoot: f[2],
})
}
}

// Extract mod entries if we are paying attention to them.
var list []metaImport
var have map[string]bool
if mod == PreferMod {
have = make(map[string]bool)
for _, m := range imports {
if m.VCS == "mod" {
have[m.Prefix] = true
list = append(list, m)
}
}
}

// Append non-mod entries, ignoring those superseded by a mod entry.
for _, m := range imports {
if m.VCS != "mod" && !have[m.Prefix] {
list = append(list, m)
}
}
return list, nil
}

// attrValue returns the attribute value for the case-insensitive key
// `name', or the empty string if nothing is found.
func attrValue(attrs []xml.Attr, name string) string {
for _, a := range attrs {
if strings.EqualFold(a.Name.Local, name) {
return a.Value
}
}
return ""
}

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