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Bump github.com/hashicorp/terraform-plugin-sdk/v2 from 2.24.1 to 2.26.0

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Bumps [github.com/hashicorp/terraform-plugin-sdk/v2](https://github.com/hashicorp/terraform-plugin-sdk) from 2.24.1 to 2.26.0.
- [Release notes](https://github.com/hashicorp/terraform-plugin-sdk/releases)
- [Changelog](https://github.com/hashicorp/terraform-plugin-sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/terraform-plugin-sdk/compare/v2.24.1...v2.26.0)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/terraform-plugin-sdk/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
This commit is contained in:
dependabot[bot]
2023-03-20 20:25:53 +00:00
committed by GitHub
parent 4f33464489
commit 84c9110a24
502 changed files with 39722 additions and 9679 deletions
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27
vendor/golang.org/x/mod/LICENSE generated vendored Normal file
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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.

22
vendor/golang.org/x/mod/PATENTS generated vendored Normal file
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Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

78
vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go generated vendored Normal file
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// Copyright 2018 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 lazyregexp is a thin wrapper over regexp, allowing the use of global
// regexp variables without forcing them to be compiled at init.
package lazyregexp
import (
"os"
"regexp"
"strings"
"sync"
)
// Regexp is a wrapper around regexp.Regexp, where the underlying regexp will be
// compiled the first time it is needed.
type Regexp struct {
str string
once sync.Once
rx *regexp.Regexp
}
func (r *Regexp) re() *regexp.Regexp {
r.once.Do(r.build)
return r.rx
}
func (r *Regexp) build() {
r.rx = regexp.MustCompile(r.str)
r.str = ""
}
func (r *Regexp) FindSubmatch(s []byte) [][]byte {
return r.re().FindSubmatch(s)
}
func (r *Regexp) FindStringSubmatch(s string) []string {
return r.re().FindStringSubmatch(s)
}
func (r *Regexp) FindStringSubmatchIndex(s string) []int {
return r.re().FindStringSubmatchIndex(s)
}
func (r *Regexp) ReplaceAllString(src, repl string) string {
return r.re().ReplaceAllString(src, repl)
}
func (r *Regexp) FindString(s string) string {
return r.re().FindString(s)
}
func (r *Regexp) FindAllString(s string, n int) []string {
return r.re().FindAllString(s, n)
}
func (r *Regexp) MatchString(s string) bool {
return r.re().MatchString(s)
}
func (r *Regexp) SubexpNames() []string {
return r.re().SubexpNames()
}
var inTest = len(os.Args) > 0 && strings.HasSuffix(strings.TrimSuffix(os.Args[0], ".exe"), ".test")
// New creates a new lazy regexp, delaying the compiling work until it is first
// needed. If the code is being run as part of tests, the regexp compiling will
// happen immediately.
func New(str string) *Regexp {
lr := &Regexp{str: str}
if inTest {
// In tests, always compile the regexps early.
lr.re()
}
return lr
}

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vendor/golang.org/x/mod/modfile/print.go generated vendored Normal file
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// Copyright 2018 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.
// Module file printer.
package modfile
import (
"bytes"
"fmt"
"strings"
)
// Format returns a go.mod file as a byte slice, formatted in standard style.
func Format(f *FileSyntax) []byte {
pr := &printer{}
pr.file(f)
return pr.Bytes()
}
// A printer collects the state during printing of a file or expression.
type printer struct {
bytes.Buffer // output buffer
comment []Comment // pending end-of-line comments
margin int // left margin (indent), a number of tabs
}
// printf prints to the buffer.
func (p *printer) printf(format string, args ...interface{}) {
fmt.Fprintf(p, format, args...)
}
// indent returns the position on the current line, in bytes, 0-indexed.
func (p *printer) indent() int {
b := p.Bytes()
n := 0
for n < len(b) && b[len(b)-1-n] != '\n' {
n++
}
return n
}
// newline ends the current line, flushing end-of-line comments.
func (p *printer) newline() {
if len(p.comment) > 0 {
p.printf(" ")
for i, com := range p.comment {
if i > 0 {
p.trim()
p.printf("\n")
for i := 0; i < p.margin; i++ {
p.printf("\t")
}
}
p.printf("%s", strings.TrimSpace(com.Token))
}
p.comment = p.comment[:0]
}
p.trim()
p.printf("\n")
for i := 0; i < p.margin; i++ {
p.printf("\t")
}
}
// trim removes trailing spaces and tabs from the current line.
func (p *printer) trim() {
// Remove trailing spaces and tabs from line we're about to end.
b := p.Bytes()
n := len(b)
for n > 0 && (b[n-1] == '\t' || b[n-1] == ' ') {
n--
}
p.Truncate(n)
}
// file formats the given file into the print buffer.
func (p *printer) file(f *FileSyntax) {
for _, com := range f.Before {
p.printf("%s", strings.TrimSpace(com.Token))
p.newline()
}
for i, stmt := range f.Stmt {
switch x := stmt.(type) {
case *CommentBlock:
// comments already handled
p.expr(x)
default:
p.expr(x)
p.newline()
}
for _, com := range stmt.Comment().After {
p.printf("%s", strings.TrimSpace(com.Token))
p.newline()
}
if i+1 < len(f.Stmt) {
p.newline()
}
}
}
func (p *printer) expr(x Expr) {
// Emit line-comments preceding this expression.
if before := x.Comment().Before; len(before) > 0 {
// Want to print a line comment.
// Line comments must be at the current margin.
p.trim()
if p.indent() > 0 {
// There's other text on the line. Start a new line.
p.printf("\n")
}
// Re-indent to margin.
for i := 0; i < p.margin; i++ {
p.printf("\t")
}
for _, com := range before {
p.printf("%s", strings.TrimSpace(com.Token))
p.newline()
}
}
switch x := x.(type) {
default:
panic(fmt.Errorf("printer: unexpected type %T", x))
case *CommentBlock:
// done
case *LParen:
p.printf("(")
case *RParen:
p.printf(")")
case *Line:
p.tokens(x.Token)
case *LineBlock:
p.tokens(x.Token)
p.printf(" ")
p.expr(&x.LParen)
p.margin++
for _, l := range x.Line {
p.newline()
p.expr(l)
}
p.margin--
p.newline()
p.expr(&x.RParen)
}
// Queue end-of-line comments for printing when we
// reach the end of the line.
p.comment = append(p.comment, x.Comment().Suffix...)
}
func (p *printer) tokens(tokens []string) {
sep := ""
for _, t := range tokens {
if t == "," || t == ")" || t == "]" || t == "}" {
sep = ""
}
p.printf("%s%s", sep, t)
sep = " "
if t == "(" || t == "[" || t == "{" {
sep = ""
}
}
}

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vendor/golang.org/x/mod/modfile/read.go generated vendored Normal file
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// Copyright 2018 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 modfile
import (
"bytes"
"errors"
"fmt"
"os"
"strconv"
"strings"
"unicode"
"unicode/utf8"
)
// A Position describes an arbitrary source position in a file, including the
// file, line, column, and byte offset.
type Position struct {
Line int // line in input (starting at 1)
LineRune int // rune in line (starting at 1)
Byte int // byte in input (starting at 0)
}
// add returns the position at the end of s, assuming it starts at p.
func (p Position) add(s string) Position {
p.Byte += len(s)
if n := strings.Count(s, "\n"); n > 0 {
p.Line += n
s = s[strings.LastIndex(s, "\n")+1:]
p.LineRune = 1
}
p.LineRune += utf8.RuneCountInString(s)
return p
}
// An Expr represents an input element.
type Expr interface {
// Span returns the start and end position of the expression,
// excluding leading or trailing comments.
Span() (start, end Position)
// Comment returns the comments attached to the expression.
// This method would normally be named 'Comments' but that
// would interfere with embedding a type of the same name.
Comment() *Comments
}
// A Comment represents a single // comment.
type Comment struct {
Start Position
Token string // without trailing newline
Suffix bool // an end of line (not whole line) comment
}
// Comments collects the comments associated with an expression.
type Comments struct {
Before []Comment // whole-line comments before this expression
Suffix []Comment // end-of-line comments after this expression
// For top-level expressions only, After lists whole-line
// comments following the expression.
After []Comment
}
// Comment returns the receiver. This isn't useful by itself, but
// a Comments struct is embedded into all the expression
// implementation types, and this gives each of those a Comment
// method to satisfy the Expr interface.
func (c *Comments) Comment() *Comments {
return c
}
// A FileSyntax represents an entire go.mod file.
type FileSyntax struct {
Name string // file path
Comments
Stmt []Expr
}
func (x *FileSyntax) Span() (start, end Position) {
if len(x.Stmt) == 0 {
return
}
start, _ = x.Stmt[0].Span()
_, end = x.Stmt[len(x.Stmt)-1].Span()
return start, end
}
// addLine adds a line containing the given tokens to the file.
//
// If the first token of the hint matches the first token of the
// line, the new line is added at the end of the block containing hint,
// extracting hint into a new block if it is not yet in one.
//
// If the hint is non-nil buts its first token does not match,
// the new line is added after the block containing hint
// (or hint itself, if not in a block).
//
// If no hint is provided, addLine appends the line to the end of
// the last block with a matching first token,
// or to the end of the file if no such block exists.
func (x *FileSyntax) addLine(hint Expr, tokens ...string) *Line {
if hint == nil {
// If no hint given, add to the last statement of the given type.
Loop:
for i := len(x.Stmt) - 1; i >= 0; i-- {
stmt := x.Stmt[i]
switch stmt := stmt.(type) {
case *Line:
if stmt.Token != nil && stmt.Token[0] == tokens[0] {
hint = stmt
break Loop
}
case *LineBlock:
if stmt.Token[0] == tokens[0] {
hint = stmt
break Loop
}
}
}
}
newLineAfter := func(i int) *Line {
new := &Line{Token: tokens}
if i == len(x.Stmt) {
x.Stmt = append(x.Stmt, new)
} else {
x.Stmt = append(x.Stmt, nil)
copy(x.Stmt[i+2:], x.Stmt[i+1:])
x.Stmt[i+1] = new
}
return new
}
if hint != nil {
for i, stmt := range x.Stmt {
switch stmt := stmt.(type) {
case *Line:
if stmt == hint {
if stmt.Token == nil || stmt.Token[0] != tokens[0] {
return newLineAfter(i)
}
// Convert line to line block.
stmt.InBlock = true
block := &LineBlock{Token: stmt.Token[:1], Line: []*Line{stmt}}
stmt.Token = stmt.Token[1:]
x.Stmt[i] = block
new := &Line{Token: tokens[1:], InBlock: true}
block.Line = append(block.Line, new)
return new
}
case *LineBlock:
if stmt == hint {
if stmt.Token[0] != tokens[0] {
return newLineAfter(i)
}
new := &Line{Token: tokens[1:], InBlock: true}
stmt.Line = append(stmt.Line, new)
return new
}
for j, line := range stmt.Line {
if line == hint {
if stmt.Token[0] != tokens[0] {
return newLineAfter(i)
}
// Add new line after hint within the block.
stmt.Line = append(stmt.Line, nil)
copy(stmt.Line[j+2:], stmt.Line[j+1:])
new := &Line{Token: tokens[1:], InBlock: true}
stmt.Line[j+1] = new
return new
}
}
}
}
}
new := &Line{Token: tokens}
x.Stmt = append(x.Stmt, new)
return new
}
func (x *FileSyntax) updateLine(line *Line, tokens ...string) {
if line.InBlock {
tokens = tokens[1:]
}
line.Token = tokens
}
// markRemoved modifies line so that it (and its end-of-line comment, if any)
// will be dropped by (*FileSyntax).Cleanup.
func (line *Line) markRemoved() {
line.Token = nil
line.Comments.Suffix = nil
}
// Cleanup cleans up the file syntax x after any edit operations.
// To avoid quadratic behavior, (*Line).markRemoved marks the line as dead
// by setting line.Token = nil but does not remove it from the slice
// in which it appears. After edits have all been indicated,
// calling Cleanup cleans out the dead lines.
func (x *FileSyntax) Cleanup() {
w := 0
for _, stmt := range x.Stmt {
switch stmt := stmt.(type) {
case *Line:
if stmt.Token == nil {
continue
}
case *LineBlock:
ww := 0
for _, line := range stmt.Line {
if line.Token != nil {
stmt.Line[ww] = line
ww++
}
}
if ww == 0 {
continue
}
if ww == 1 {
// Collapse block into single line.
line := &Line{
Comments: Comments{
Before: commentsAdd(stmt.Before, stmt.Line[0].Before),
Suffix: commentsAdd(stmt.Line[0].Suffix, stmt.Suffix),
After: commentsAdd(stmt.Line[0].After, stmt.After),
},
Token: stringsAdd(stmt.Token, stmt.Line[0].Token),
}
x.Stmt[w] = line
w++
continue
}
stmt.Line = stmt.Line[:ww]
}
x.Stmt[w] = stmt
w++
}
x.Stmt = x.Stmt[:w]
}
func commentsAdd(x, y []Comment) []Comment {
return append(x[:len(x):len(x)], y...)
}
func stringsAdd(x, y []string) []string {
return append(x[:len(x):len(x)], y...)
}
// A CommentBlock represents a top-level block of comments separate
// from any rule.
type CommentBlock struct {
Comments
Start Position
}
func (x *CommentBlock) Span() (start, end Position) {
return x.Start, x.Start
}
// A Line is a single line of tokens.
type Line struct {
Comments
Start Position
Token []string
InBlock bool
End Position
}
func (x *Line) Span() (start, end Position) {
return x.Start, x.End
}
// A LineBlock is a factored block of lines, like
//
// require (
// "x"
// "y"
// )
type LineBlock struct {
Comments
Start Position
LParen LParen
Token []string
Line []*Line
RParen RParen
}
func (x *LineBlock) Span() (start, end Position) {
return x.Start, x.RParen.Pos.add(")")
}
// An LParen represents the beginning of a parenthesized line block.
// It is a place to store suffix comments.
type LParen struct {
Comments
Pos Position
}
func (x *LParen) Span() (start, end Position) {
return x.Pos, x.Pos.add(")")
}
// An RParen represents the end of a parenthesized line block.
// It is a place to store whole-line (before) comments.
type RParen struct {
Comments
Pos Position
}
func (x *RParen) Span() (start, end Position) {
return x.Pos, x.Pos.add(")")
}
// An input represents a single input file being parsed.
type input struct {
// Lexing state.
filename string // name of input file, for errors
complete []byte // entire input
remaining []byte // remaining input
tokenStart []byte // token being scanned to end of input
token token // next token to be returned by lex, peek
pos Position // current input position
comments []Comment // accumulated comments
// Parser state.
file *FileSyntax // returned top-level syntax tree
parseErrors ErrorList // errors encountered during parsing
// Comment assignment state.
pre []Expr // all expressions, in preorder traversal
post []Expr // all expressions, in postorder traversal
}
func newInput(filename string, data []byte) *input {
return &input{
filename: filename,
complete: data,
remaining: data,
pos: Position{Line: 1, LineRune: 1, Byte: 0},
}
}
// parse parses the input file.
func parse(file string, data []byte) (f *FileSyntax, err error) {
// The parser panics for both routine errors like syntax errors
// and for programmer bugs like array index errors.
// Turn both into error returns. Catching bug panics is
// especially important when processing many files.
in := newInput(file, data)
defer func() {
if e := recover(); e != nil && e != &in.parseErrors {
in.parseErrors = append(in.parseErrors, Error{
Filename: in.filename,
Pos: in.pos,
Err: fmt.Errorf("internal error: %v", e),
})
}
if err == nil && len(in.parseErrors) > 0 {
err = in.parseErrors
}
}()
// Prime the lexer by reading in the first token. It will be available
// in the next peek() or lex() call.
in.readToken()
// Invoke the parser.
in.parseFile()
if len(in.parseErrors) > 0 {
return nil, in.parseErrors
}
in.file.Name = in.filename
// Assign comments to nearby syntax.
in.assignComments()
return in.file, nil
}
// Error is called to report an error.
// Error does not return: it panics.
func (in *input) Error(s string) {
in.parseErrors = append(in.parseErrors, Error{
Filename: in.filename,
Pos: in.pos,
Err: errors.New(s),
})
panic(&in.parseErrors)
}
// eof reports whether the input has reached end of file.
func (in *input) eof() bool {
return len(in.remaining) == 0
}
// peekRune returns the next rune in the input without consuming it.
func (in *input) peekRune() int {
if len(in.remaining) == 0 {
return 0
}
r, _ := utf8.DecodeRune(in.remaining)
return int(r)
}
// peekPrefix reports whether the remaining input begins with the given prefix.
func (in *input) peekPrefix(prefix string) bool {
// This is like bytes.HasPrefix(in.remaining, []byte(prefix))
// but without the allocation of the []byte copy of prefix.
for i := 0; i < len(prefix); i++ {
if i >= len(in.remaining) || in.remaining[i] != prefix[i] {
return false
}
}
return true
}
// readRune consumes and returns the next rune in the input.
func (in *input) readRune() int {
if len(in.remaining) == 0 {
in.Error("internal lexer error: readRune at EOF")
}
r, size := utf8.DecodeRune(in.remaining)
in.remaining = in.remaining[size:]
if r == '\n' {
in.pos.Line++
in.pos.LineRune = 1
} else {
in.pos.LineRune++
}
in.pos.Byte += size
return int(r)
}
type token struct {
kind tokenKind
pos Position
endPos Position
text string
}
type tokenKind int
const (
_EOF tokenKind = -(iota + 1)
_EOLCOMMENT
_IDENT
_STRING
_COMMENT
// newlines and punctuation tokens are allowed as ASCII codes.
)
func (k tokenKind) isComment() bool {
return k == _COMMENT || k == _EOLCOMMENT
}
// isEOL returns whether a token terminates a line.
func (k tokenKind) isEOL() bool {
return k == _EOF || k == _EOLCOMMENT || k == '\n'
}
// startToken marks the beginning of the next input token.
// It must be followed by a call to endToken, once the token's text has
// been consumed using readRune.
func (in *input) startToken() {
in.tokenStart = in.remaining
in.token.text = ""
in.token.pos = in.pos
}
// endToken marks the end of an input token.
// It records the actual token string in tok.text.
// A single trailing newline (LF or CRLF) will be removed from comment tokens.
func (in *input) endToken(kind tokenKind) {
in.token.kind = kind
text := string(in.tokenStart[:len(in.tokenStart)-len(in.remaining)])
if kind.isComment() {
if strings.HasSuffix(text, "\r\n") {
text = text[:len(text)-2]
} else {
text = strings.TrimSuffix(text, "\n")
}
}
in.token.text = text
in.token.endPos = in.pos
}
// peek returns the kind of the next token returned by lex.
func (in *input) peek() tokenKind {
return in.token.kind
}
// lex is called from the parser to obtain the next input token.
func (in *input) lex() token {
tok := in.token
in.readToken()
return tok
}
// readToken lexes the next token from the text and stores it in in.token.
func (in *input) readToken() {
// Skip past spaces, stopping at non-space or EOF.
for !in.eof() {
c := in.peekRune()
if c == ' ' || c == '\t' || c == '\r' {
in.readRune()
continue
}
// Comment runs to end of line.
if in.peekPrefix("//") {
in.startToken()
// Is this comment the only thing on its line?
// Find the last \n before this // and see if it's all
// spaces from there to here.
i := bytes.LastIndex(in.complete[:in.pos.Byte], []byte("\n"))
suffix := len(bytes.TrimSpace(in.complete[i+1:in.pos.Byte])) > 0
in.readRune()
in.readRune()
// Consume comment.
for len(in.remaining) > 0 && in.readRune() != '\n' {
}
// If we are at top level (not in a statement), hand the comment to
// the parser as a _COMMENT token. The grammar is written
// to handle top-level comments itself.
if !suffix {
in.endToken(_COMMENT)
return
}
// Otherwise, save comment for later attachment to syntax tree.
in.endToken(_EOLCOMMENT)
in.comments = append(in.comments, Comment{in.token.pos, in.token.text, suffix})
return
}
if in.peekPrefix("/*") {
in.Error("mod files must use // comments (not /* */ comments)")
}
// Found non-space non-comment.
break
}
// Found the beginning of the next token.
in.startToken()
// End of file.
if in.eof() {
in.endToken(_EOF)
return
}
// Punctuation tokens.
switch c := in.peekRune(); c {
case '\n', '(', ')', '[', ']', '{', '}', ',':
in.readRune()
in.endToken(tokenKind(c))
return
case '"', '`': // quoted string
quote := c
in.readRune()
for {
if in.eof() {
in.pos = in.token.pos
in.Error("unexpected EOF in string")
}
if in.peekRune() == '\n' {
in.Error("unexpected newline in string")
}
c := in.readRune()
if c == quote {
break
}
if c == '\\' && quote != '`' {
if in.eof() {
in.pos = in.token.pos
in.Error("unexpected EOF in string")
}
in.readRune()
}
}
in.endToken(_STRING)
return
}
// Checked all punctuation. Must be identifier token.
if c := in.peekRune(); !isIdent(c) {
in.Error(fmt.Sprintf("unexpected input character %#q", c))
}
// Scan over identifier.
for isIdent(in.peekRune()) {
if in.peekPrefix("//") {
break
}
if in.peekPrefix("/*") {
in.Error("mod files must use // comments (not /* */ comments)")
}
in.readRune()
}
in.endToken(_IDENT)
}
// isIdent reports whether c is an identifier rune.
// We treat most printable runes as identifier runes, except for a handful of
// ASCII punctuation characters.
func isIdent(c int) bool {
switch r := rune(c); r {
case ' ', '(', ')', '[', ']', '{', '}', ',':
return false
default:
return !unicode.IsSpace(r) && unicode.IsPrint(r)
}
}
// Comment assignment.
// We build two lists of all subexpressions, preorder and postorder.
// The preorder list is ordered by start location, with outer expressions first.
// The postorder list is ordered by end location, with outer expressions last.
// We use the preorder list to assign each whole-line comment to the syntax
// immediately following it, and we use the postorder list to assign each
// end-of-line comment to the syntax immediately preceding it.
// order walks the expression adding it and its subexpressions to the
// preorder and postorder lists.
func (in *input) order(x Expr) {
if x != nil {
in.pre = append(in.pre, x)
}
switch x := x.(type) {
default:
panic(fmt.Errorf("order: unexpected type %T", x))
case nil:
// nothing
case *LParen, *RParen:
// nothing
case *CommentBlock:
// nothing
case *Line:
// nothing
case *FileSyntax:
for _, stmt := range x.Stmt {
in.order(stmt)
}
case *LineBlock:
in.order(&x.LParen)
for _, l := range x.Line {
in.order(l)
}
in.order(&x.RParen)
}
if x != nil {
in.post = append(in.post, x)
}
}
// assignComments attaches comments to nearby syntax.
func (in *input) assignComments() {
const debug = false
// Generate preorder and postorder lists.
in.order(in.file)
// Split into whole-line comments and suffix comments.
var line, suffix []Comment
for _, com := range in.comments {
if com.Suffix {
suffix = append(suffix, com)
} else {
line = append(line, com)
}
}
if debug {
for _, c := range line {
fmt.Fprintf(os.Stderr, "LINE %q :%d:%d #%d\n", c.Token, c.Start.Line, c.Start.LineRune, c.Start.Byte)
}
}
// Assign line comments to syntax immediately following.
for _, x := range in.pre {
start, _ := x.Span()
if debug {
fmt.Fprintf(os.Stderr, "pre %T :%d:%d #%d\n", x, start.Line, start.LineRune, start.Byte)
}
xcom := x.Comment()
for len(line) > 0 && start.Byte >= line[0].Start.Byte {
if debug {
fmt.Fprintf(os.Stderr, "ASSIGN LINE %q #%d\n", line[0].Token, line[0].Start.Byte)
}
xcom.Before = append(xcom.Before, line[0])
line = line[1:]
}
}
// Remaining line comments go at end of file.
in.file.After = append(in.file.After, line...)
if debug {
for _, c := range suffix {
fmt.Fprintf(os.Stderr, "SUFFIX %q :%d:%d #%d\n", c.Token, c.Start.Line, c.Start.LineRune, c.Start.Byte)
}
}
// Assign suffix comments to syntax immediately before.
for i := len(in.post) - 1; i >= 0; i-- {
x := in.post[i]
start, end := x.Span()
if debug {
fmt.Fprintf(os.Stderr, "post %T :%d:%d #%d :%d:%d #%d\n", x, start.Line, start.LineRune, start.Byte, end.Line, end.LineRune, end.Byte)
}
// Do not assign suffix comments to end of line block or whole file.
// Instead assign them to the last element inside.
switch x.(type) {
case *FileSyntax:
continue
}
// Do not assign suffix comments to something that starts
// on an earlier line, so that in
//
// x ( y
// z ) // comment
//
// we assign the comment to z and not to x ( ... ).
if start.Line != end.Line {
continue
}
xcom := x.Comment()
for len(suffix) > 0 && end.Byte <= suffix[len(suffix)-1].Start.Byte {
if debug {
fmt.Fprintf(os.Stderr, "ASSIGN SUFFIX %q #%d\n", suffix[len(suffix)-1].Token, suffix[len(suffix)-1].Start.Byte)
}
xcom.Suffix = append(xcom.Suffix, suffix[len(suffix)-1])
suffix = suffix[:len(suffix)-1]
}
}
// We assigned suffix comments in reverse.
// If multiple suffix comments were appended to the same
// expression node, they are now in reverse. Fix that.
for _, x := range in.post {
reverseComments(x.Comment().Suffix)
}
// Remaining suffix comments go at beginning of file.
in.file.Before = append(in.file.Before, suffix...)
}
// reverseComments reverses the []Comment list.
func reverseComments(list []Comment) {
for i, j := 0, len(list)-1; i < j; i, j = i+1, j-1 {
list[i], list[j] = list[j], list[i]
}
}
func (in *input) parseFile() {
in.file = new(FileSyntax)
var cb *CommentBlock
for {
switch in.peek() {
case '\n':
in.lex()
if cb != nil {
in.file.Stmt = append(in.file.Stmt, cb)
cb = nil
}
case _COMMENT:
tok := in.lex()
if cb == nil {
cb = &CommentBlock{Start: tok.pos}
}
com := cb.Comment()
com.Before = append(com.Before, Comment{Start: tok.pos, Token: tok.text})
case _EOF:
if cb != nil {
in.file.Stmt = append(in.file.Stmt, cb)
}
return
default:
in.parseStmt()
if cb != nil {
in.file.Stmt[len(in.file.Stmt)-1].Comment().Before = cb.Before
cb = nil
}
}
}
}
func (in *input) parseStmt() {
tok := in.lex()
start := tok.pos
end := tok.endPos
tokens := []string{tok.text}
for {
tok := in.lex()
switch {
case tok.kind.isEOL():
in.file.Stmt = append(in.file.Stmt, &Line{
Start: start,
Token: tokens,
End: end,
})
return
case tok.kind == '(':
if next := in.peek(); next.isEOL() {
// Start of block: no more tokens on this line.
in.file.Stmt = append(in.file.Stmt, in.parseLineBlock(start, tokens, tok))
return
} else if next == ')' {
rparen := in.lex()
if in.peek().isEOL() {
// Empty block.
in.lex()
in.file.Stmt = append(in.file.Stmt, &LineBlock{
Start: start,
Token: tokens,
LParen: LParen{Pos: tok.pos},
RParen: RParen{Pos: rparen.pos},
})
return
}
// '( )' in the middle of the line, not a block.
tokens = append(tokens, tok.text, rparen.text)
} else {
// '(' in the middle of the line, not a block.
tokens = append(tokens, tok.text)
}
default:
tokens = append(tokens, tok.text)
end = tok.endPos
}
}
}
func (in *input) parseLineBlock(start Position, token []string, lparen token) *LineBlock {
x := &LineBlock{
Start: start,
Token: token,
LParen: LParen{Pos: lparen.pos},
}
var comments []Comment
for {
switch in.peek() {
case _EOLCOMMENT:
// Suffix comment, will be attached later by assignComments.
in.lex()
case '\n':
// Blank line. Add an empty comment to preserve it.
in.lex()
if len(comments) == 0 && len(x.Line) > 0 || len(comments) > 0 && comments[len(comments)-1].Token != "" {
comments = append(comments, Comment{})
}
case _COMMENT:
tok := in.lex()
comments = append(comments, Comment{Start: tok.pos, Token: tok.text})
case _EOF:
in.Error(fmt.Sprintf("syntax error (unterminated block started at %s:%d:%d)", in.filename, x.Start.Line, x.Start.LineRune))
case ')':
rparen := in.lex()
x.RParen.Before = comments
x.RParen.Pos = rparen.pos
if !in.peek().isEOL() {
in.Error("syntax error (expected newline after closing paren)")
}
in.lex()
return x
default:
l := in.parseLine()
x.Line = append(x.Line, l)
l.Comment().Before = comments
comments = nil
}
}
}
func (in *input) parseLine() *Line {
tok := in.lex()
if tok.kind.isEOL() {
in.Error("internal parse error: parseLine at end of line")
}
start := tok.pos
end := tok.endPos
tokens := []string{tok.text}
for {
tok := in.lex()
if tok.kind.isEOL() {
return &Line{
Start: start,
Token: tokens,
End: end,
InBlock: true,
}
}
tokens = append(tokens, tok.text)
end = tok.endPos
}
}
var (
slashSlash = []byte("//")
moduleStr = []byte("module")
)
// ModulePath returns the module path from the gomod file text.
// If it cannot find a module path, it returns an empty string.
// It is tolerant of unrelated problems in the go.mod file.
func ModulePath(mod []byte) string {
for len(mod) > 0 {
line := mod
mod = nil
if i := bytes.IndexByte(line, '\n'); i >= 0 {
line, mod = line[:i], line[i+1:]
}
if i := bytes.Index(line, slashSlash); i >= 0 {
line = line[:i]
}
line = bytes.TrimSpace(line)
if !bytes.HasPrefix(line, moduleStr) {
continue
}
line = line[len(moduleStr):]
n := len(line)
line = bytes.TrimSpace(line)
if len(line) == n || len(line) == 0 {
continue
}
if line[0] == '"' || line[0] == '`' {
p, err := strconv.Unquote(string(line))
if err != nil {
return "" // malformed quoted string or multiline module path
}
return p
}
return string(line)
}
return "" // missing module path
}

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vendor/golang.org/x/mod/modfile/work.go generated vendored Normal file
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// Copyright 2021 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 modfile
import (
"fmt"
"sort"
"strings"
)
// A WorkFile is the parsed, interpreted form of a go.work file.
type WorkFile struct {
Go *Go
Use []*Use
Replace []*Replace
Syntax *FileSyntax
}
// A Use is a single directory statement.
type Use struct {
Path string // Use path of module.
ModulePath string // Module path in the comment.
Syntax *Line
}
// ParseWork parses and returns a go.work file.
//
// file is the name of the file, used in positions and errors.
//
// data is the content of the file.
//
// fix is an optional function that canonicalizes module versions.
// If fix is nil, all module versions must be canonical (module.CanonicalVersion
// must return the same string).
func ParseWork(file string, data []byte, fix VersionFixer) (*WorkFile, error) {
fs, err := parse(file, data)
if err != nil {
return nil, err
}
f := &WorkFile{
Syntax: fs,
}
var errs ErrorList
for _, x := range fs.Stmt {
switch x := x.(type) {
case *Line:
f.add(&errs, x, x.Token[0], x.Token[1:], fix)
case *LineBlock:
if len(x.Token) > 1 {
errs = append(errs, Error{
Filename: file,
Pos: x.Start,
Err: fmt.Errorf("unknown block type: %s", strings.Join(x.Token, " ")),
})
continue
}
switch x.Token[0] {
default:
errs = append(errs, Error{
Filename: file,
Pos: x.Start,
Err: fmt.Errorf("unknown block type: %s", strings.Join(x.Token, " ")),
})
continue
case "use", "replace":
for _, l := range x.Line {
f.add(&errs, l, x.Token[0], l.Token, fix)
}
}
}
}
if len(errs) > 0 {
return nil, errs
}
return f, nil
}
// Cleanup cleans up the file f after any edit operations.
// To avoid quadratic behavior, modifications like DropRequire
// clear the entry but do not remove it from the slice.
// Cleanup cleans out all the cleared entries.
func (f *WorkFile) Cleanup() {
w := 0
for _, r := range f.Use {
if r.Path != "" {
f.Use[w] = r
w++
}
}
f.Use = f.Use[:w]
w = 0
for _, r := range f.Replace {
if r.Old.Path != "" {
f.Replace[w] = r
w++
}
}
f.Replace = f.Replace[:w]
f.Syntax.Cleanup()
}
func (f *WorkFile) AddGoStmt(version string) error {
if !GoVersionRE.MatchString(version) {
return fmt.Errorf("invalid language version string %q", version)
}
if f.Go == nil {
stmt := &Line{Token: []string{"go", version}}
f.Go = &Go{
Version: version,
Syntax: stmt,
}
// Find the first non-comment-only block that's and add
// the go statement before it. That will keep file comments at the top.
i := 0
for i = 0; i < len(f.Syntax.Stmt); i++ {
if _, ok := f.Syntax.Stmt[i].(*CommentBlock); !ok {
break
}
}
f.Syntax.Stmt = append(append(f.Syntax.Stmt[:i:i], stmt), f.Syntax.Stmt[i:]...)
} else {
f.Go.Version = version
f.Syntax.updateLine(f.Go.Syntax, "go", version)
}
return nil
}
func (f *WorkFile) AddUse(diskPath, modulePath string) error {
need := true
for _, d := range f.Use {
if d.Path == diskPath {
if need {
d.ModulePath = modulePath
f.Syntax.updateLine(d.Syntax, "use", AutoQuote(diskPath))
need = false
} else {
d.Syntax.markRemoved()
*d = Use{}
}
}
}
if need {
f.AddNewUse(diskPath, modulePath)
}
return nil
}
func (f *WorkFile) AddNewUse(diskPath, modulePath string) {
line := f.Syntax.addLine(nil, "use", AutoQuote(diskPath))
f.Use = append(f.Use, &Use{Path: diskPath, ModulePath: modulePath, Syntax: line})
}
func (f *WorkFile) SetUse(dirs []*Use) {
need := make(map[string]string)
for _, d := range dirs {
need[d.Path] = d.ModulePath
}
for _, d := range f.Use {
if modulePath, ok := need[d.Path]; ok {
d.ModulePath = modulePath
} else {
d.Syntax.markRemoved()
*d = Use{}
}
}
// TODO(#45713): Add module path to comment.
for diskPath, modulePath := range need {
f.AddNewUse(diskPath, modulePath)
}
f.SortBlocks()
}
func (f *WorkFile) DropUse(path string) error {
for _, d := range f.Use {
if d.Path == path {
d.Syntax.markRemoved()
*d = Use{}
}
}
return nil
}
func (f *WorkFile) AddReplace(oldPath, oldVers, newPath, newVers string) error {
return addReplace(f.Syntax, &f.Replace, oldPath, oldVers, newPath, newVers)
}
func (f *WorkFile) DropReplace(oldPath, oldVers string) error {
for _, r := range f.Replace {
if r.Old.Path == oldPath && r.Old.Version == oldVers {
r.Syntax.markRemoved()
*r = Replace{}
}
}
return nil
}
func (f *WorkFile) SortBlocks() {
f.removeDups() // otherwise sorting is unsafe
for _, stmt := range f.Syntax.Stmt {
block, ok := stmt.(*LineBlock)
if !ok {
continue
}
sort.SliceStable(block.Line, func(i, j int) bool {
return lineLess(block.Line[i], block.Line[j])
})
}
}
// removeDups removes duplicate replace directives.
//
// Later replace directives take priority.
//
// require directives are not de-duplicated. That's left up to higher-level
// logic (MVS).
//
// retract directives are not de-duplicated since comments are
// meaningful, and versions may be retracted multiple times.
func (f *WorkFile) removeDups() {
removeDups(f.Syntax, nil, &f.Replace)
}

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// Copyright 2018 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 module defines the module.Version type along with support code.
//
// The module.Version type is a simple Path, Version pair:
//
// type Version struct {
// Path string
// Version string
// }
//
// There are no restrictions imposed directly by use of this structure,
// but additional checking functions, most notably Check, verify that
// a particular path, version pair is valid.
//
// # Escaped Paths
//
// Module paths appear as substrings of file system paths
// (in the download cache) and of web server URLs in the proxy protocol.
// In general we cannot rely on file systems to be case-sensitive,
// nor can we rely on web servers, since they read from file systems.
// That is, we cannot rely on the file system to keep rsc.io/QUOTE
// and rsc.io/quote separate. Windows and macOS don't.
// Instead, we must never require two different casings of a file path.
// Because we want the download cache to match the proxy protocol,
// and because we want the proxy protocol to be possible to serve
// from a tree of static files (which might be stored on a case-insensitive
// file system), the proxy protocol must never require two different casings
// of a URL path either.
//
// One possibility would be to make the escaped form be the lowercase
// hexadecimal encoding of the actual path bytes. This would avoid ever
// needing different casings of a file path, but it would be fairly illegible
// to most programmers when those paths appeared in the file system
// (including in file paths in compiler errors and stack traces)
// in web server logs, and so on. Instead, we want a safe escaped form that
// leaves most paths unaltered.
//
// The safe escaped form is to replace every uppercase letter
// with an exclamation mark followed by the letter's lowercase equivalent.
//
// For example,
//
// github.com/Azure/azure-sdk-for-go -> github.com/!azure/azure-sdk-for-go.
// github.com/GoogleCloudPlatform/cloudsql-proxy -> github.com/!google!cloud!platform/cloudsql-proxy
// github.com/Sirupsen/logrus -> github.com/!sirupsen/logrus.
//
// Import paths that avoid upper-case letters are left unchanged.
// Note that because import paths are ASCII-only and avoid various
// problematic punctuation (like : < and >), the escaped form is also ASCII-only
// and avoids the same problematic punctuation.
//
// Import paths have never allowed exclamation marks, so there is no
// need to define how to escape a literal !.
//
// # Unicode Restrictions
//
// Today, paths are disallowed from using Unicode.
//
// Although paths are currently disallowed from using Unicode,
// we would like at some point to allow Unicode letters as well, to assume that
// file systems and URLs are Unicode-safe (storing UTF-8), and apply
// the !-for-uppercase convention for escaping them in the file system.
// But there are at least two subtle considerations.
//
// First, note that not all case-fold equivalent distinct runes
// form an upper/lower pair.
// For example, U+004B ('K'), U+006B ('k'), and U+212A ('K' for Kelvin)
// are three distinct runes that case-fold to each other.
// When we do add Unicode letters, we must not assume that upper/lower
// are the only case-equivalent pairs.
// Perhaps the Kelvin symbol would be disallowed entirely, for example.
// Or perhaps it would escape as "!!k", or perhaps as "(212A)".
//
// Second, it would be nice to allow Unicode marks as well as letters,
// but marks include combining marks, and then we must deal not
// only with case folding but also normalization: both U+00E9 ('é')
// and U+0065 U+0301 ('e' followed by combining acute accent)
// look the same on the page and are treated by some file systems
// as the same path. If we do allow Unicode marks in paths, there
// must be some kind of normalization to allow only one canonical
// encoding of any character used in an import path.
package module
// IMPORTANT NOTE
//
// This file essentially defines the set of valid import paths for the go command.
// There are many subtle considerations, including Unicode ambiguity,
// security, network, and file system representations.
//
// This file also defines the set of valid module path and version combinations,
// another topic with many subtle considerations.
//
// Changes to the semantics in this file require approval from rsc.
import (
"errors"
"fmt"
"path"
"sort"
"strings"
"unicode"
"unicode/utf8"
"golang.org/x/mod/semver"
)
// A Version (for clients, a module.Version) is defined by a module path and version pair.
// These are stored in their plain (unescaped) form.
type Version struct {
// Path is a module path, like "golang.org/x/text" or "rsc.io/quote/v2".
Path string
// Version is usually a semantic version in canonical form.
// There are three exceptions to this general rule.
// First, the top-level target of a build has no specific version
// and uses Version = "".
// Second, during MVS calculations the version "none" is used
// to represent the decision to take no version of a given module.
// Third, filesystem paths found in "replace" directives are
// represented by a path with an empty version.
Version string `json:",omitempty"`
}
// String returns a representation of the Version suitable for logging
// (Path@Version, or just Path if Version is empty).
func (m Version) String() string {
if m.Version == "" {
return m.Path
}
return m.Path + "@" + m.Version
}
// A ModuleError indicates an error specific to a module.
type ModuleError struct {
Path string
Version string
Err error
}
// VersionError returns a ModuleError derived from a Version and error,
// or err itself if it is already such an error.
func VersionError(v Version, err error) error {
var mErr *ModuleError
if errors.As(err, &mErr) && mErr.Path == v.Path && mErr.Version == v.Version {
return err
}
return &ModuleError{
Path: v.Path,
Version: v.Version,
Err: err,
}
}
func (e *ModuleError) Error() string {
if v, ok := e.Err.(*InvalidVersionError); ok {
return fmt.Sprintf("%s@%s: invalid %s: %v", e.Path, v.Version, v.noun(), v.Err)
}
if e.Version != "" {
return fmt.Sprintf("%s@%s: %v", e.Path, e.Version, e.Err)
}
return fmt.Sprintf("module %s: %v", e.Path, e.Err)
}
func (e *ModuleError) Unwrap() error { return e.Err }
// An InvalidVersionError indicates an error specific to a version, with the
// module path unknown or specified externally.
//
// A ModuleError may wrap an InvalidVersionError, but an InvalidVersionError
// must not wrap a ModuleError.
type InvalidVersionError struct {
Version string
Pseudo bool
Err error
}
// noun returns either "version" or "pseudo-version", depending on whether
// e.Version is a pseudo-version.
func (e *InvalidVersionError) noun() string {
if e.Pseudo {
return "pseudo-version"
}
return "version"
}
func (e *InvalidVersionError) Error() string {
return fmt.Sprintf("%s %q invalid: %s", e.noun(), e.Version, e.Err)
}
func (e *InvalidVersionError) Unwrap() error { return e.Err }
// An InvalidPathError indicates a module, import, or file path doesn't
// satisfy all naming constraints. See CheckPath, CheckImportPath,
// and CheckFilePath for specific restrictions.
type InvalidPathError struct {
Kind string // "module", "import", or "file"
Path string
Err error
}
func (e *InvalidPathError) Error() string {
return fmt.Sprintf("malformed %s path %q: %v", e.Kind, e.Path, e.Err)
}
func (e *InvalidPathError) Unwrap() error { return e.Err }
// Check checks that a given module path, version pair is valid.
// In addition to the path being a valid module path
// and the version being a valid semantic version,
// the two must correspond.
// For example, the path "yaml/v2" only corresponds to
// semantic versions beginning with "v2.".
func Check(path, version string) error {
if err := CheckPath(path); err != nil {
return err
}
if !semver.IsValid(version) {
return &ModuleError{
Path: path,
Err: &InvalidVersionError{Version: version, Err: errors.New("not a semantic version")},
}
}
_, pathMajor, _ := SplitPathVersion(path)
if err := CheckPathMajor(version, pathMajor); err != nil {
return &ModuleError{Path: path, Err: err}
}
return nil
}
// firstPathOK reports whether r can appear in the first element of a module path.
// The first element of the path must be an LDH domain name, at least for now.
// To avoid case ambiguity, the domain name must be entirely lower case.
func firstPathOK(r rune) bool {
return r == '-' || r == '.' ||
'0' <= r && r <= '9' ||
'a' <= r && r <= 'z'
}
// modPathOK reports whether r can appear in a module path element.
// Paths can be ASCII letters, ASCII digits, and limited ASCII punctuation: - . _ and ~.
//
// This matches what "go get" has historically recognized in import paths,
// and avoids confusing sequences like '%20' or '+' that would change meaning
// if used in a URL.
//
// TODO(rsc): We would like to allow Unicode letters, but that requires additional
// care in the safe encoding (see "escaped paths" above).
func modPathOK(r rune) bool {
if r < utf8.RuneSelf {
return r == '-' || r == '.' || r == '_' || r == '~' ||
'0' <= r && r <= '9' ||
'A' <= r && r <= 'Z' ||
'a' <= r && r <= 'z'
}
return false
}
// importPathOK reports whether r can appear in a package import path element.
//
// Import paths are intermediate between module paths and file paths: we allow
// disallow characters that would be confusing or ambiguous as arguments to
// 'go get' (such as '@' and ' ' ), but allow certain characters that are
// otherwise-unambiguous on the command line and historically used for some
// binary names (such as '++' as a suffix for compiler binaries and wrappers).
func importPathOK(r rune) bool {
return modPathOK(r) || r == '+'
}
// fileNameOK reports whether r can appear in a file name.
// For now we allow all Unicode letters but otherwise limit to pathOK plus a few more punctuation characters.
// If we expand the set of allowed characters here, we have to
// work harder at detecting potential case-folding and normalization collisions.
// See note about "escaped paths" above.
func fileNameOK(r rune) bool {
if r < utf8.RuneSelf {
// Entire set of ASCII punctuation, from which we remove characters:
// ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | } ~
// We disallow some shell special characters: " ' * < > ? ` |
// (Note that some of those are disallowed by the Windows file system as well.)
// We also disallow path separators / : and \ (fileNameOK is only called on path element characters).
// We allow spaces (U+0020) in file names.
const allowed = "!#$%&()+,-.=@[]^_{}~ "
if '0' <= r && r <= '9' || 'A' <= r && r <= 'Z' || 'a' <= r && r <= 'z' {
return true
}
return strings.ContainsRune(allowed, r)
}
// It may be OK to add more ASCII punctuation here, but only carefully.
// For example Windows disallows < > \, and macOS disallows :, so we must not allow those.
return unicode.IsLetter(r)
}
// CheckPath checks that a module path is valid.
// A valid module path is a valid import path, as checked by CheckImportPath,
// with three additional constraints.
// First, the leading path element (up to the first slash, if any),
// by convention a domain name, must contain only lower-case ASCII letters,
// ASCII digits, dots (U+002E), and dashes (U+002D);
// it must contain at least one dot and cannot start with a dash.
// Second, for a final path element of the form /vN, where N looks numeric
// (ASCII digits and dots) must not begin with a leading zero, must not be /v1,
// and must not contain any dots. For paths beginning with "gopkg.in/",
// this second requirement is replaced by a requirement that the path
// follow the gopkg.in server's conventions.
// Third, no path element may begin with a dot.
func CheckPath(path string) (err error) {
defer func() {
if err != nil {
err = &InvalidPathError{Kind: "module", Path: path, Err: err}
}
}()
if err := checkPath(path, modulePath); err != nil {
return err
}
i := strings.Index(path, "/")
if i < 0 {
i = len(path)
}
if i == 0 {
return fmt.Errorf("leading slash")
}
if !strings.Contains(path[:i], ".") {
return fmt.Errorf("missing dot in first path element")
}
if path[0] == '-' {
return fmt.Errorf("leading dash in first path element")
}
for _, r := range path[:i] {
if !firstPathOK(r) {
return fmt.Errorf("invalid char %q in first path element", r)
}
}
if _, _, ok := SplitPathVersion(path); !ok {
return fmt.Errorf("invalid version")
}
return nil
}
// CheckImportPath checks that an import path is valid.
//
// A valid import path consists of one or more valid path elements
// separated by slashes (U+002F). (It must not begin with nor end in a slash.)
//
// A valid path element is a non-empty string made up of
// ASCII letters, ASCII digits, and limited ASCII punctuation: - . _ and ~.
// It must not end with a dot (U+002E), nor contain two dots in a row.
//
// The element prefix up to the first dot must not be a reserved file name
// on Windows, regardless of case (CON, com1, NuL, and so on). The element
// must not have a suffix of a tilde followed by one or more ASCII digits
// (to exclude paths elements that look like Windows short-names).
//
// CheckImportPath may be less restrictive in the future, but see the
// top-level package documentation for additional information about
// subtleties of Unicode.
func CheckImportPath(path string) error {
if err := checkPath(path, importPath); err != nil {
return &InvalidPathError{Kind: "import", Path: path, Err: err}
}
return nil
}
// pathKind indicates what kind of path we're checking. Module paths,
// import paths, and file paths have different restrictions.
type pathKind int
const (
modulePath pathKind = iota
importPath
filePath
)
// checkPath checks that a general path is valid. kind indicates what
// specific constraints should be applied.
//
// checkPath returns an error describing why the path is not valid.
// Because these checks apply to module, import, and file paths,
// and because other checks may be applied, the caller is expected to wrap
// this error with InvalidPathError.
func checkPath(path string, kind pathKind) error {
if !utf8.ValidString(path) {
return fmt.Errorf("invalid UTF-8")
}
if path == "" {
return fmt.Errorf("empty string")
}
if path[0] == '-' && kind != filePath {
return fmt.Errorf("leading dash")
}
if strings.Contains(path, "//") {
return fmt.Errorf("double slash")
}
if path[len(path)-1] == '/' {
return fmt.Errorf("trailing slash")
}
elemStart := 0
for i, r := range path {
if r == '/' {
if err := checkElem(path[elemStart:i], kind); err != nil {
return err
}
elemStart = i + 1
}
}
if err := checkElem(path[elemStart:], kind); err != nil {
return err
}
return nil
}
// checkElem checks whether an individual path element is valid.
func checkElem(elem string, kind pathKind) error {
if elem == "" {
return fmt.Errorf("empty path element")
}
if strings.Count(elem, ".") == len(elem) {
return fmt.Errorf("invalid path element %q", elem)
}
if elem[0] == '.' && kind == modulePath {
return fmt.Errorf("leading dot in path element")
}
if elem[len(elem)-1] == '.' {
return fmt.Errorf("trailing dot in path element")
}
for _, r := range elem {
ok := false
switch kind {
case modulePath:
ok = modPathOK(r)
case importPath:
ok = importPathOK(r)
case filePath:
ok = fileNameOK(r)
default:
panic(fmt.Sprintf("internal error: invalid kind %v", kind))
}
if !ok {
return fmt.Errorf("invalid char %q", r)
}
}
// Windows disallows a bunch of path elements, sadly.
// See https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file
short := elem
if i := strings.Index(short, "."); i >= 0 {
short = short[:i]
}
for _, bad := range badWindowsNames {
if strings.EqualFold(bad, short) {
return fmt.Errorf("%q disallowed as path element component on Windows", short)
}
}
if kind == filePath {
// don't check for Windows short-names in file names. They're
// only an issue for import paths.
return nil
}
// Reject path components that look like Windows short-names.
// Those usually end in a tilde followed by one or more ASCII digits.
if tilde := strings.LastIndexByte(short, '~'); tilde >= 0 && tilde < len(short)-1 {
suffix := short[tilde+1:]
suffixIsDigits := true
for _, r := range suffix {
if r < '0' || r > '9' {
suffixIsDigits = false
break
}
}
if suffixIsDigits {
return fmt.Errorf("trailing tilde and digits in path element")
}
}
return nil
}
// CheckFilePath checks that a slash-separated file path is valid.
// The definition of a valid file path is the same as the definition
// of a valid import path except that the set of allowed characters is larger:
// all Unicode letters, ASCII digits, the ASCII space character (U+0020),
// and the ASCII punctuation characters
// “!#$%&()+,-.=@[]^_{}~”.
// (The excluded punctuation characters, " * < > ? ` ' | / \ and :,
// have special meanings in certain shells or operating systems.)
//
// CheckFilePath may be less restrictive in the future, but see the
// top-level package documentation for additional information about
// subtleties of Unicode.
func CheckFilePath(path string) error {
if err := checkPath(path, filePath); err != nil {
return &InvalidPathError{Kind: "file", Path: path, Err: err}
}
return nil
}
// badWindowsNames are the reserved file path elements on Windows.
// See https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file
var badWindowsNames = []string{
"CON",
"PRN",
"AUX",
"NUL",
"COM1",
"COM2",
"COM3",
"COM4",
"COM5",
"COM6",
"COM7",
"COM8",
"COM9",
"LPT1",
"LPT2",
"LPT3",
"LPT4",
"LPT5",
"LPT6",
"LPT7",
"LPT8",
"LPT9",
}
// SplitPathVersion returns prefix and major version such that prefix+pathMajor == path
// and version is either empty or "/vN" for N >= 2.
// As a special case, gopkg.in paths are recognized directly;
// they require ".vN" instead of "/vN", and for all N, not just N >= 2.
// SplitPathVersion returns with ok = false when presented with
// a path whose last path element does not satisfy the constraints
// applied by CheckPath, such as "example.com/pkg/v1" or "example.com/pkg/v1.2".
func SplitPathVersion(path string) (prefix, pathMajor string, ok bool) {
if strings.HasPrefix(path, "gopkg.in/") {
return splitGopkgIn(path)
}
i := len(path)
dot := false
for i > 0 && ('0' <= path[i-1] && path[i-1] <= '9' || path[i-1] == '.') {
if path[i-1] == '.' {
dot = true
}
i--
}
if i <= 1 || i == len(path) || path[i-1] != 'v' || path[i-2] != '/' {
return path, "", true
}
prefix, pathMajor = path[:i-2], path[i-2:]
if dot || len(pathMajor) <= 2 || pathMajor[2] == '0' || pathMajor == "/v1" {
return path, "", false
}
return prefix, pathMajor, true
}
// splitGopkgIn is like SplitPathVersion but only for gopkg.in paths.
func splitGopkgIn(path string) (prefix, pathMajor string, ok bool) {
if !strings.HasPrefix(path, "gopkg.in/") {
return path, "", false
}
i := len(path)
if strings.HasSuffix(path, "-unstable") {
i -= len("-unstable")
}
for i > 0 && ('0' <= path[i-1] && path[i-1] <= '9') {
i--
}
if i <= 1 || path[i-1] != 'v' || path[i-2] != '.' {
// All gopkg.in paths must end in vN for some N.
return path, "", false
}
prefix, pathMajor = path[:i-2], path[i-2:]
if len(pathMajor) <= 2 || pathMajor[2] == '0' && pathMajor != ".v0" {
return path, "", false
}
return prefix, pathMajor, true
}
// MatchPathMajor reports whether the semantic version v
// matches the path major version pathMajor.
//
// MatchPathMajor returns true if and only if CheckPathMajor returns nil.
func MatchPathMajor(v, pathMajor string) bool {
return CheckPathMajor(v, pathMajor) == nil
}
// CheckPathMajor returns a non-nil error if the semantic version v
// does not match the path major version pathMajor.
func CheckPathMajor(v, pathMajor string) error {
// TODO(jayconrod): return errors or panic for invalid inputs. This function
// (and others) was covered by integration tests for cmd/go, and surrounding
// code protected against invalid inputs like non-canonical versions.
if strings.HasPrefix(pathMajor, ".v") && strings.HasSuffix(pathMajor, "-unstable") {
pathMajor = strings.TrimSuffix(pathMajor, "-unstable")
}
if strings.HasPrefix(v, "v0.0.0-") && pathMajor == ".v1" {
// Allow old bug in pseudo-versions that generated v0.0.0- pseudoversion for gopkg .v1.
// For example, gopkg.in/yaml.v2@v2.2.1's go.mod requires gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405.
return nil
}
m := semver.Major(v)
if pathMajor == "" {
if m == "v0" || m == "v1" || semver.Build(v) == "+incompatible" {
return nil
}
pathMajor = "v0 or v1"
} else if pathMajor[0] == '/' || pathMajor[0] == '.' {
if m == pathMajor[1:] {
return nil
}
pathMajor = pathMajor[1:]
}
return &InvalidVersionError{
Version: v,
Err: fmt.Errorf("should be %s, not %s", pathMajor, semver.Major(v)),
}
}
// PathMajorPrefix returns the major-version tag prefix implied by pathMajor.
// An empty PathMajorPrefix allows either v0 or v1.
//
// Note that MatchPathMajor may accept some versions that do not actually begin
// with this prefix: namely, it accepts a 'v0.0.0-' prefix for a '.v1'
// pathMajor, even though that pathMajor implies 'v1' tagging.
func PathMajorPrefix(pathMajor string) string {
if pathMajor == "" {
return ""
}
if pathMajor[0] != '/' && pathMajor[0] != '.' {
panic("pathMajor suffix " + pathMajor + " passed to PathMajorPrefix lacks separator")
}
if strings.HasPrefix(pathMajor, ".v") && strings.HasSuffix(pathMajor, "-unstable") {
pathMajor = strings.TrimSuffix(pathMajor, "-unstable")
}
m := pathMajor[1:]
if m != semver.Major(m) {
panic("pathMajor suffix " + pathMajor + "passed to PathMajorPrefix is not a valid major version")
}
return m
}
// CanonicalVersion returns the canonical form of the version string v.
// It is the same as semver.Canonical(v) except that it preserves the special build suffix "+incompatible".
func CanonicalVersion(v string) string {
cv := semver.Canonical(v)
if semver.Build(v) == "+incompatible" {
cv += "+incompatible"
}
return cv
}
// Sort sorts the list by Path, breaking ties by comparing Version fields.
// The Version fields are interpreted as semantic versions (using semver.Compare)
// optionally followed by a tie-breaking suffix introduced by a slash character,
// like in "v0.0.1/go.mod".
func Sort(list []Version) {
sort.Slice(list, func(i, j int) bool {
mi := list[i]
mj := list[j]
if mi.Path != mj.Path {
return mi.Path < mj.Path
}
// To help go.sum formatting, allow version/file.
// Compare semver prefix by semver rules,
// file by string order.
vi := mi.Version
vj := mj.Version
var fi, fj string
if k := strings.Index(vi, "/"); k >= 0 {
vi, fi = vi[:k], vi[k:]
}
if k := strings.Index(vj, "/"); k >= 0 {
vj, fj = vj[:k], vj[k:]
}
if vi != vj {
return semver.Compare(vi, vj) < 0
}
return fi < fj
})
}
// EscapePath returns the escaped form of the given module path.
// It fails if the module path is invalid.
func EscapePath(path string) (escaped string, err error) {
if err := CheckPath(path); err != nil {
return "", err
}
return escapeString(path)
}
// EscapeVersion returns the escaped form of the given module version.
// Versions are allowed to be in non-semver form but must be valid file names
// and not contain exclamation marks.
func EscapeVersion(v string) (escaped string, err error) {
if err := checkElem(v, filePath); err != nil || strings.Contains(v, "!") {
return "", &InvalidVersionError{
Version: v,
Err: fmt.Errorf("disallowed version string"),
}
}
return escapeString(v)
}
func escapeString(s string) (escaped string, err error) {
haveUpper := false
for _, r := range s {
if r == '!' || r >= utf8.RuneSelf {
// This should be disallowed by CheckPath, but diagnose anyway.
// The correctness of the escaping loop below depends on it.
return "", fmt.Errorf("internal error: inconsistency in EscapePath")
}
if 'A' <= r && r <= 'Z' {
haveUpper = true
}
}
if !haveUpper {
return s, nil
}
var buf []byte
for _, r := range s {
if 'A' <= r && r <= 'Z' {
buf = append(buf, '!', byte(r+'a'-'A'))
} else {
buf = append(buf, byte(r))
}
}
return string(buf), nil
}
// UnescapePath returns the module path for the given escaped path.
// It fails if the escaped path is invalid or describes an invalid path.
func UnescapePath(escaped string) (path string, err error) {
path, ok := unescapeString(escaped)
if !ok {
return "", fmt.Errorf("invalid escaped module path %q", escaped)
}
if err := CheckPath(path); err != nil {
return "", fmt.Errorf("invalid escaped module path %q: %v", escaped, err)
}
return path, nil
}
// UnescapeVersion returns the version string for the given escaped version.
// It fails if the escaped form is invalid or describes an invalid version.
// Versions are allowed to be in non-semver form but must be valid file names
// and not contain exclamation marks.
func UnescapeVersion(escaped string) (v string, err error) {
v, ok := unescapeString(escaped)
if !ok {
return "", fmt.Errorf("invalid escaped version %q", escaped)
}
if err := checkElem(v, filePath); err != nil {
return "", fmt.Errorf("invalid escaped version %q: %v", v, err)
}
return v, nil
}
func unescapeString(escaped string) (string, bool) {
var buf []byte
bang := false
for _, r := range escaped {
if r >= utf8.RuneSelf {
return "", false
}
if bang {
bang = false
if r < 'a' || 'z' < r {
return "", false
}
buf = append(buf, byte(r+'A'-'a'))
continue
}
if r == '!' {
bang = true
continue
}
if 'A' <= r && r <= 'Z' {
return "", false
}
buf = append(buf, byte(r))
}
if bang {
return "", false
}
return string(buf), true
}
// MatchPrefixPatterns reports whether any path prefix of target matches one of
// the glob patterns (as defined by path.Match) in the comma-separated globs
// list. This implements the algorithm used when matching a module path to the
// GOPRIVATE environment variable, as described by 'go help module-private'.
//
// It ignores any empty or malformed patterns in the list.
// Trailing slashes on patterns are ignored.
func MatchPrefixPatterns(globs, target string) bool {
for globs != "" {
// Extract next non-empty glob in comma-separated list.
var glob string
if i := strings.Index(globs, ","); i >= 0 {
glob, globs = globs[:i], globs[i+1:]
} else {
glob, globs = globs, ""
}
glob = strings.TrimSuffix(glob, "/")
if glob == "" {
continue
}
// A glob with N+1 path elements (N slashes) needs to be matched
// against the first N+1 path elements of target,
// which end just before the N+1'th slash.
n := strings.Count(glob, "/")
prefix := target
// Walk target, counting slashes, truncating at the N+1'th slash.
for i := 0; i < len(target); i++ {
if target[i] == '/' {
if n == 0 {
prefix = target[:i]
break
}
n--
}
}
if n > 0 {
// Not enough prefix elements.
continue
}
matched, _ := path.Match(glob, prefix)
if matched {
return true
}
}
return false
}

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vendor/golang.org/x/mod/module/pseudo.go generated vendored Normal file
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@ -0,0 +1,250 @@
// Copyright 2018 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.
// Pseudo-versions
//
// Code authors are expected to tag the revisions they want users to use,
// including prereleases. However, not all authors tag versions at all,
// and not all commits a user might want to try will have tags.
// A pseudo-version is a version with a special form that allows us to
// address an untagged commit and order that version with respect to
// other versions we might encounter.
//
// A pseudo-version takes one of the general forms:
//
// (1) vX.0.0-yyyymmddhhmmss-abcdef123456
// (2) vX.Y.(Z+1)-0.yyyymmddhhmmss-abcdef123456
// (3) vX.Y.(Z+1)-0.yyyymmddhhmmss-abcdef123456+incompatible
// (4) vX.Y.Z-pre.0.yyyymmddhhmmss-abcdef123456
// (5) vX.Y.Z-pre.0.yyyymmddhhmmss-abcdef123456+incompatible
//
// If there is no recently tagged version with the right major version vX,
// then form (1) is used, creating a space of pseudo-versions at the bottom
// of the vX version range, less than any tagged version, including the unlikely v0.0.0.
//
// If the most recent tagged version before the target commit is vX.Y.Z or vX.Y.Z+incompatible,
// then the pseudo-version uses form (2) or (3), making it a prerelease for the next
// possible semantic version after vX.Y.Z. The leading 0 segment in the prerelease string
// ensures that the pseudo-version compares less than possible future explicit prereleases
// like vX.Y.(Z+1)-rc1 or vX.Y.(Z+1)-1.
//
// If the most recent tagged version before the target commit is vX.Y.Z-pre or vX.Y.Z-pre+incompatible,
// then the pseudo-version uses form (4) or (5), making it a slightly later prerelease.
package module
import (
"errors"
"fmt"
"strings"
"time"
"golang.org/x/mod/internal/lazyregexp"
"golang.org/x/mod/semver"
)
var pseudoVersionRE = lazyregexp.New(`^v[0-9]+\.(0\.0-|\d+\.\d+-([^+]*\.)?0\.)\d{14}-[A-Za-z0-9]+(\+[0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*)?$`)
const PseudoVersionTimestampFormat = "20060102150405"
// PseudoVersion returns a pseudo-version for the given major version ("v1")
// preexisting older tagged version ("" or "v1.2.3" or "v1.2.3-pre"), revision time,
// and revision identifier (usually a 12-byte commit hash prefix).
func PseudoVersion(major, older string, t time.Time, rev string) string {
if major == "" {
major = "v0"
}
segment := fmt.Sprintf("%s-%s", t.UTC().Format(PseudoVersionTimestampFormat), rev)
build := semver.Build(older)
older = semver.Canonical(older)
if older == "" {
return major + ".0.0-" + segment // form (1)
}
if semver.Prerelease(older) != "" {
return older + ".0." + segment + build // form (4), (5)
}
// Form (2), (3).
// Extract patch from vMAJOR.MINOR.PATCH
i := strings.LastIndex(older, ".") + 1
v, patch := older[:i], older[i:]
// Reassemble.
return v + incDecimal(patch) + "-0." + segment + build
}
// ZeroPseudoVersion returns a pseudo-version with a zero timestamp and
// revision, which may be used as a placeholder.
func ZeroPseudoVersion(major string) string {
return PseudoVersion(major, "", time.Time{}, "000000000000")
}
// incDecimal returns the decimal string incremented by 1.
func incDecimal(decimal string) string {
// Scan right to left turning 9s to 0s until you find a digit to increment.
digits := []byte(decimal)
i := len(digits) - 1
for ; i >= 0 && digits[i] == '9'; i-- {
digits[i] = '0'
}
if i >= 0 {
digits[i]++
} else {
// digits is all zeros
digits[0] = '1'
digits = append(digits, '0')
}
return string(digits)
}
// decDecimal returns the decimal string decremented by 1, or the empty string
// if the decimal is all zeroes.
func decDecimal(decimal string) string {
// Scan right to left turning 0s to 9s until you find a digit to decrement.
digits := []byte(decimal)
i := len(digits) - 1
for ; i >= 0 && digits[i] == '0'; i-- {
digits[i] = '9'
}
if i < 0 {
// decimal is all zeros
return ""
}
if i == 0 && digits[i] == '1' && len(digits) > 1 {
digits = digits[1:]
} else {
digits[i]--
}
return string(digits)
}
// IsPseudoVersion reports whether v is a pseudo-version.
func IsPseudoVersion(v string) bool {
return strings.Count(v, "-") >= 2 && semver.IsValid(v) && pseudoVersionRE.MatchString(v)
}
// IsZeroPseudoVersion returns whether v is a pseudo-version with a zero base,
// timestamp, and revision, as returned by ZeroPseudoVersion.
func IsZeroPseudoVersion(v string) bool {
return v == ZeroPseudoVersion(semver.Major(v))
}
// PseudoVersionTime returns the time stamp of the pseudo-version v.
// It returns an error if v is not a pseudo-version or if the time stamp
// embedded in the pseudo-version is not a valid time.
func PseudoVersionTime(v string) (time.Time, error) {
_, timestamp, _, _, err := parsePseudoVersion(v)
if err != nil {
return time.Time{}, err
}
t, err := time.Parse("20060102150405", timestamp)
if err != nil {
return time.Time{}, &InvalidVersionError{
Version: v,
Pseudo: true,
Err: fmt.Errorf("malformed time %q", timestamp),
}
}
return t, nil
}
// PseudoVersionRev returns the revision identifier of the pseudo-version v.
// It returns an error if v is not a pseudo-version.
func PseudoVersionRev(v string) (rev string, err error) {
_, _, rev, _, err = parsePseudoVersion(v)
return
}
// PseudoVersionBase returns the canonical parent version, if any, upon which
// the pseudo-version v is based.
//
// If v has no parent version (that is, if it is "vX.0.0-[…]"),
// PseudoVersionBase returns the empty string and a nil error.
func PseudoVersionBase(v string) (string, error) {
base, _, _, build, err := parsePseudoVersion(v)
if err != nil {
return "", err
}
switch pre := semver.Prerelease(base); pre {
case "":
// vX.0.0-yyyymmddhhmmss-abcdef123456 → ""
if build != "" {
// Pseudo-versions of the form vX.0.0-yyyymmddhhmmss-abcdef123456+incompatible
// are nonsensical: the "vX.0.0-" prefix implies that there is no parent tag,
// but the "+incompatible" suffix implies that the major version of
// the parent tag is not compatible with the module's import path.
//
// There are a few such entries in the index generated by proxy.golang.org,
// but we believe those entries were generated by the proxy itself.
return "", &InvalidVersionError{
Version: v,
Pseudo: true,
Err: fmt.Errorf("lacks base version, but has build metadata %q", build),
}
}
return "", nil
case "-0":
// vX.Y.(Z+1)-0.yyyymmddhhmmss-abcdef123456 → vX.Y.Z
// vX.Y.(Z+1)-0.yyyymmddhhmmss-abcdef123456+incompatible → vX.Y.Z+incompatible
base = strings.TrimSuffix(base, pre)
i := strings.LastIndexByte(base, '.')
if i < 0 {
panic("base from parsePseudoVersion missing patch number: " + base)
}
patch := decDecimal(base[i+1:])
if patch == "" {
// vX.0.0-0 is invalid, but has been observed in the wild in the index
// generated by requests to proxy.golang.org.
//
// NOTE(bcmills): I cannot find a historical bug that accounts for
// pseudo-versions of this form, nor have I seen such versions in any
// actual go.mod files. If we find actual examples of this form and a
// reasonable theory of how they came into existence, it seems fine to
// treat them as equivalent to vX.0.0 (especially since the invalid
// pseudo-versions have lower precedence than the real ones). For now, we
// reject them.
return "", &InvalidVersionError{
Version: v,
Pseudo: true,
Err: fmt.Errorf("version before %s would have negative patch number", base),
}
}
return base[:i+1] + patch + build, nil
default:
// vX.Y.Z-pre.0.yyyymmddhhmmss-abcdef123456 → vX.Y.Z-pre
// vX.Y.Z-pre.0.yyyymmddhhmmss-abcdef123456+incompatible → vX.Y.Z-pre+incompatible
if !strings.HasSuffix(base, ".0") {
panic(`base from parsePseudoVersion missing ".0" before date: ` + base)
}
return strings.TrimSuffix(base, ".0") + build, nil
}
}
var errPseudoSyntax = errors.New("syntax error")
func parsePseudoVersion(v string) (base, timestamp, rev, build string, err error) {
if !IsPseudoVersion(v) {
return "", "", "", "", &InvalidVersionError{
Version: v,
Pseudo: true,
Err: errPseudoSyntax,
}
}
build = semver.Build(v)
v = strings.TrimSuffix(v, build)
j := strings.LastIndex(v, "-")
v, rev = v[:j], v[j+1:]
i := strings.LastIndex(v, "-")
if j := strings.LastIndex(v, "."); j > i {
base = v[:j] // "vX.Y.Z-pre.0" or "vX.Y.(Z+1)-0"
timestamp = v[j+1:]
} else {
base = v[:i] // "vX.0.0"
timestamp = v[i+1:]
}
return base, timestamp, rev, build, nil
}

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vendor/golang.org/x/mod/semver/semver.go generated vendored Normal file
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@ -0,0 +1,401 @@
// Copyright 2018 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 semver implements comparison of semantic version strings.
// In this package, semantic version strings must begin with a leading "v",
// as in "v1.0.0".
//
// The general form of a semantic version string accepted by this package is
//
// vMAJOR[.MINOR[.PATCH[-PRERELEASE][+BUILD]]]
//
// where square brackets indicate optional parts of the syntax;
// MAJOR, MINOR, and PATCH are decimal integers without extra leading zeros;
// PRERELEASE and BUILD are each a series of non-empty dot-separated identifiers
// using only alphanumeric characters and hyphens; and
// all-numeric PRERELEASE identifiers must not have leading zeros.
//
// This package follows Semantic Versioning 2.0.0 (see semver.org)
// with two exceptions. First, it requires the "v" prefix. Second, it recognizes
// vMAJOR and vMAJOR.MINOR (with no prerelease or build suffixes)
// as shorthands for vMAJOR.0.0 and vMAJOR.MINOR.0.
package semver
import "sort"
// parsed returns the parsed form of a semantic version string.
type parsed struct {
major string
minor string
patch string
short string
prerelease string
build string
}
// IsValid reports whether v is a valid semantic version string.
func IsValid(v string) bool {
_, ok := parse(v)
return ok
}
// Canonical returns the canonical formatting of the semantic version v.
// It fills in any missing .MINOR or .PATCH and discards build metadata.
// Two semantic versions compare equal only if their canonical formattings
// are identical strings.
// The canonical invalid semantic version is the empty string.
func Canonical(v string) string {
p, ok := parse(v)
if !ok {
return ""
}
if p.build != "" {
return v[:len(v)-len(p.build)]
}
if p.short != "" {
return v + p.short
}
return v
}
// Major returns the major version prefix of the semantic version v.
// For example, Major("v2.1.0") == "v2".
// If v is an invalid semantic version string, Major returns the empty string.
func Major(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
return v[:1+len(pv.major)]
}
// MajorMinor returns the major.minor version prefix of the semantic version v.
// For example, MajorMinor("v2.1.0") == "v2.1".
// If v is an invalid semantic version string, MajorMinor returns the empty string.
func MajorMinor(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
i := 1 + len(pv.major)
if j := i + 1 + len(pv.minor); j <= len(v) && v[i] == '.' && v[i+1:j] == pv.minor {
return v[:j]
}
return v[:i] + "." + pv.minor
}
// Prerelease returns the prerelease suffix of the semantic version v.
// For example, Prerelease("v2.1.0-pre+meta") == "-pre".
// If v is an invalid semantic version string, Prerelease returns the empty string.
func Prerelease(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
return pv.prerelease
}
// Build returns the build suffix of the semantic version v.
// For example, Build("v2.1.0+meta") == "+meta".
// If v is an invalid semantic version string, Build returns the empty string.
func Build(v string) string {
pv, ok := parse(v)
if !ok {
return ""
}
return pv.build
}
// Compare returns an integer comparing two versions according to
// semantic version precedence.
// The result will be 0 if v == w, -1 if v < w, or +1 if v > w.
//
// An invalid semantic version string is considered less than a valid one.
// All invalid semantic version strings compare equal to each other.
func Compare(v, w string) int {
pv, ok1 := parse(v)
pw, ok2 := parse(w)
if !ok1 && !ok2 {
return 0
}
if !ok1 {
return -1
}
if !ok2 {
return +1
}
if c := compareInt(pv.major, pw.major); c != 0 {
return c
}
if c := compareInt(pv.minor, pw.minor); c != 0 {
return c
}
if c := compareInt(pv.patch, pw.patch); c != 0 {
return c
}
return comparePrerelease(pv.prerelease, pw.prerelease)
}
// Max canonicalizes its arguments and then returns the version string
// that compares greater.
//
// Deprecated: use Compare instead. In most cases, returning a canonicalized
// version is not expected or desired.
func Max(v, w string) string {
v = Canonical(v)
w = Canonical(w)
if Compare(v, w) > 0 {
return v
}
return w
}
// ByVersion implements sort.Interface for sorting semantic version strings.
type ByVersion []string
func (vs ByVersion) Len() int { return len(vs) }
func (vs ByVersion) Swap(i, j int) { vs[i], vs[j] = vs[j], vs[i] }
func (vs ByVersion) Less(i, j int) bool {
cmp := Compare(vs[i], vs[j])
if cmp != 0 {
return cmp < 0
}
return vs[i] < vs[j]
}
// Sort sorts a list of semantic version strings using ByVersion.
func Sort(list []string) {
sort.Sort(ByVersion(list))
}
func parse(v string) (p parsed, ok bool) {
if v == "" || v[0] != 'v' {
return
}
p.major, v, ok = parseInt(v[1:])
if !ok {
return
}
if v == "" {
p.minor = "0"
p.patch = "0"
p.short = ".0.0"
return
}
if v[0] != '.' {
ok = false
return
}
p.minor, v, ok = parseInt(v[1:])
if !ok {
return
}
if v == "" {
p.patch = "0"
p.short = ".0"
return
}
if v[0] != '.' {
ok = false
return
}
p.patch, v, ok = parseInt(v[1:])
if !ok {
return
}
if len(v) > 0 && v[0] == '-' {
p.prerelease, v, ok = parsePrerelease(v)
if !ok {
return
}
}
if len(v) > 0 && v[0] == '+' {
p.build, v, ok = parseBuild(v)
if !ok {
return
}
}
if v != "" {
ok = false
return
}
ok = true
return
}
func parseInt(v string) (t, rest string, ok bool) {
if v == "" {
return
}
if v[0] < '0' || '9' < v[0] {
return
}
i := 1
for i < len(v) && '0' <= v[i] && v[i] <= '9' {
i++
}
if v[0] == '0' && i != 1 {
return
}
return v[:i], v[i:], true
}
func parsePrerelease(v string) (t, rest string, ok bool) {
// "A pre-release version MAY be denoted by appending a hyphen and
// a series of dot separated identifiers immediately following the patch version.
// Identifiers MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-].
// Identifiers MUST NOT be empty. Numeric identifiers MUST NOT include leading zeroes."
if v == "" || v[0] != '-' {
return
}
i := 1
start := 1
for i < len(v) && v[i] != '+' {
if !isIdentChar(v[i]) && v[i] != '.' {
return
}
if v[i] == '.' {
if start == i || isBadNum(v[start:i]) {
return
}
start = i + 1
}
i++
}
if start == i || isBadNum(v[start:i]) {
return
}
return v[:i], v[i:], true
}
func parseBuild(v string) (t, rest string, ok bool) {
if v == "" || v[0] != '+' {
return
}
i := 1
start := 1
for i < len(v) {
if !isIdentChar(v[i]) && v[i] != '.' {
return
}
if v[i] == '.' {
if start == i {
return
}
start = i + 1
}
i++
}
if start == i {
return
}
return v[:i], v[i:], true
}
func isIdentChar(c byte) bool {
return 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' || c == '-'
}
func isBadNum(v string) bool {
i := 0
for i < len(v) && '0' <= v[i] && v[i] <= '9' {
i++
}
return i == len(v) && i > 1 && v[0] == '0'
}
func isNum(v string) bool {
i := 0
for i < len(v) && '0' <= v[i] && v[i] <= '9' {
i++
}
return i == len(v)
}
func compareInt(x, y string) int {
if x == y {
return 0
}
if len(x) < len(y) {
return -1
}
if len(x) > len(y) {
return +1
}
if x < y {
return -1
} else {
return +1
}
}
func comparePrerelease(x, y string) int {
// "When major, minor, and patch are equal, a pre-release version has
// lower precedence than a normal version.
// Example: 1.0.0-alpha < 1.0.0.
// Precedence for two pre-release versions with the same major, minor,
// and patch version MUST be determined by comparing each dot separated
// identifier from left to right until a difference is found as follows:
// identifiers consisting of only digits are compared numerically and
// identifiers with letters or hyphens are compared lexically in ASCII
// sort order. Numeric identifiers always have lower precedence than
// non-numeric identifiers. A larger set of pre-release fields has a
// higher precedence than a smaller set, if all of the preceding
// identifiers are equal.
// Example: 1.0.0-alpha < 1.0.0-alpha.1 < 1.0.0-alpha.beta <
// 1.0.0-beta < 1.0.0-beta.2 < 1.0.0-beta.11 < 1.0.0-rc.1 < 1.0.0."
if x == y {
return 0
}
if x == "" {
return +1
}
if y == "" {
return -1
}
for x != "" && y != "" {
x = x[1:] // skip - or .
y = y[1:] // skip - or .
var dx, dy string
dx, x = nextIdent(x)
dy, y = nextIdent(y)
if dx != dy {
ix := isNum(dx)
iy := isNum(dy)
if ix != iy {
if ix {
return -1
} else {
return +1
}
}
if ix {
if len(dx) < len(dy) {
return -1
}
if len(dx) > len(dy) {
return +1
}
}
if dx < dy {
return -1
} else {
return +1
}
}
}
if x == "" {
return -1
} else {
return +1
}
}
func nextIdent(x string) (dx, rest string) {
i := 0
for i < len(x) && x[i] != '.' {
i++
}
return x[:i], x[i:]
}