diff options
Diffstat (limited to 'vendor/golang.org/x/mod')
| -rw-r--r-- | vendor/golang.org/x/mod/LICENSE | 27 | ||||
| -rw-r--r-- | vendor/golang.org/x/mod/PATENTS | 22 | ||||
| -rw-r--r-- | vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go | 78 | ||||
| -rw-r--r-- | vendor/golang.org/x/mod/module/module.go | 841 | ||||
| -rw-r--r-- | vendor/golang.org/x/mod/module/pseudo.go | 250 | ||||
| -rw-r--r-- | vendor/golang.org/x/mod/semver/semver.go | 401 |
6 files changed, 0 insertions, 1619 deletions
diff --git a/vendor/golang.org/x/mod/LICENSE b/vendor/golang.org/x/mod/LICENSE deleted file mode 100644 index 2a7cf70da..000000000 --- a/vendor/golang.org/x/mod/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright 2009 The Go Authors. - -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 LLC 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. diff --git a/vendor/golang.org/x/mod/PATENTS b/vendor/golang.org/x/mod/PATENTS deleted file mode 100644 index 733099041..000000000 --- a/vendor/golang.org/x/mod/PATENTS +++ /dev/null @@ -1,22 +0,0 @@ -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. diff --git a/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go b/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go deleted file mode 100644 index 150f887e7..000000000 --- a/vendor/golang.org/x/mod/internal/lazyregexp/lazyre.go +++ /dev/null @@ -1,78 +0,0 @@ -// 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 -} diff --git a/vendor/golang.org/x/mod/module/module.go b/vendor/golang.org/x/mod/module/module.go deleted file mode 100644 index 2a364b229..000000000 --- a/vendor/golang.org/x/mod/module/module.go +++ /dev/null @@ -1,841 +0,0 @@ -// 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] 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 -} diff --git a/vendor/golang.org/x/mod/module/pseudo.go b/vendor/golang.org/x/mod/module/pseudo.go deleted file mode 100644 index 9cf19d325..000000000 --- a/vendor/golang.org/x/mod/module/pseudo.go +++ /dev/null @@ -1,250 +0,0 @@ -// 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 -} diff --git a/vendor/golang.org/x/mod/semver/semver.go b/vendor/golang.org/x/mod/semver/semver.go deleted file mode 100644 index 9a2dfd33a..000000000 --- a/vendor/golang.org/x/mod/semver/semver.go +++ /dev/null @@ -1,401 +0,0 @@ -// 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:] -} |