/
gopath.go
78 lines (67 loc) · 1.68 KB
/
gopath.go
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// Copyright (C) 2023 Shanhu Tech Inc.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU Affero General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
// for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package smake
import (
"fmt"
"go/build"
"path/filepath"
"sort"
"strings"
"shanhu.io/g/goenv"
"shanhu.io/g/goload"
)
func absGOPATH() (string, error) {
gopath, err := goenv.GOPATH()
if err != nil {
return "", err
}
abs, err := filepath.Abs(gopath)
if err != nil {
return "", err
}
return abs, nil
}
type relPkg struct {
abs string
rel string
pkg *build.Package
}
func relPkgs(rootPkg string, scanRes *goload.ScanResult) ([]*relPkg, error) {
var pkgs []string
for pkg := range scanRes.Pkgs {
pkgs = append(pkgs, pkg)
}
sort.Strings(pkgs)
var ret []*relPkg
prefix := rootPkg + "/"
for _, pkg := range pkgs {
rel := &relPkg{
abs: pkg,
pkg: scanRes.Pkgs[pkg].Build,
}
if pkg == rootPkg {
rel.rel = "."
ret = append(ret, rel)
continue
}
if strings.HasPrefix(pkg, prefix) {
rel.rel = "./" + strings.TrimPrefix(pkg, prefix)
ret = append(ret, rel)
continue
}
return nil, fmt.Errorf("%q is not in %q", pkg, rootPkg)
}
return ret, nil
}