48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
|
// 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.
|
||
|
|
|
||
|
|
// TODO: Figure out what gopkg.in should do.
|
||
|
|
|
||
|
|
package modfile
|
||
|
|
|
||
|
|
import "strings"
|
||
|
|
|
||
|
|
// ParseGopkgIn splits gopkg.in import paths into their constituent parts
|
||
|
|
func ParseGopkgIn(path string) (root, repo, major, subdir string, ok bool) {
|
||
|
|
if !strings.HasPrefix(path, "gopkg.in/") {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
f := strings.Split(path, "/")
|
||
|
|
if len(f) >= 2 {
|
||
|
|
if elem, v, ok := dotV(f[1]); ok {
|
||
|
|
root = strings.Join(f[:2], "/")
|
||
|
|
repo = "github.com/go-" + elem + "/" + elem
|
||
|
|
major = v
|
||
|
|
subdir = strings.Join(f[2:], "/")
|
||
|
|
return root, repo, major, subdir, true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if len(f) >= 3 {
|
||
|
|
if elem, v, ok := dotV(f[2]); ok {
|
||
|
|
root = strings.Join(f[:3], "/")
|
||
|
|
repo = "github.com/" + f[1] + "/" + elem
|
||
|
|
major = v
|
||
|
|
subdir = strings.Join(f[3:], "/")
|
||
|
|
return root, repo, major, subdir, true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
func dotV(name string) (elem, v string, ok bool) {
|
||
|
|
i := len(name) - 1
|
||
|
|
for i >= 0 && '0' <= name[i] && name[i] <= '9' {
|
||
|
|
i--
|
||
|
|
}
|
||
|
|
if i <= 2 || i+1 >= len(name) || name[i-1] != '.' || name[i] != 'v' || name[i+1] == '0' && len(name) != i+2 {
|
||
|
|
return "", "", false
|
||
|
|
}
|
||
|
|
return name[:i-1], name[i:], true
|
||
|
|
}
|