forked from mirror/pkger
67 lines
1.0 KiB
Go
67 lines
1.0 KiB
Go
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package paths
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import (
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"fmt"
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"regexp"
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"strings"
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"sync"
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"github.com/markbates/pkger/pkgs"
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)
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var cache = pathsMap{
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data: &sync.Map{},
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}
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var pathrx = regexp.MustCompile("([^:]+)(:(/.+))?")
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func Parse(p string) (Path, error) {
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pt, ok := cache.Load(p)
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if ok {
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return pt, nil
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}
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if len(p) == 0 {
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return build(p, "", "")
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}
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res := pathrx.FindAllStringSubmatch(p, -1)
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if len(res) == 0 {
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return pt, fmt.Errorf("could not parse %q", p)
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}
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matches := res[0]
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if len(matches) != 4 {
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return pt, fmt.Errorf("could not parse %q", p)
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}
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return build(p, matches[1], matches[3])
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}
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func build(p, pkg, name string) (Path, error) {
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pt := Path{
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Pkg: pkg,
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Name: name,
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}
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info, err := pkgs.Current()
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if err != nil {
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return pt, err
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}
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if strings.HasPrefix(pt.Pkg, "/") || len(pt.Pkg) == 0 {
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pt.Name = pt.Pkg
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pt.Pkg = info.ImportPath
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}
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if pt.Pkg == pt.Name || len(pt.Name) == 0 {
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pt.Pkg = info.ImportPath
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}
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if !strings.HasPrefix(pt.Name, "/") {
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pt.Name = "/" + pt.Name
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}
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cache.Store(p, pt)
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return pt, nil
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}
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