mirror of
https://github.com/mudler/luet.git
synced 2025-06-30 09:12:15 +00:00
131 lines
3.7 KiB
Go
131 lines
3.7 KiB
Go
// Copyright © 2019 Ettore Di Giacinto <mudler@gentoo.org>
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program; if not, see <http://www.gnu.org/licenses/>.
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package gentoo
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// NOTE: Look here as an example of the builder definition executor
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// https://gist.github.com/adnaan/6ca68c7985c6f851def3
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import (
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"context"
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"errors"
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"fmt"
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"os"
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"path/filepath"
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"regexp"
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"strings"
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. "github.com/mudler/luet/pkg/logger"
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pkg "github.com/mudler/luet/pkg/package"
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"mvdan.cc/sh/expand"
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"mvdan.cc/sh/shell"
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"mvdan.cc/sh/syntax"
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)
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// SimpleEbuildParser ignores USE flags and generates just 1-1 package
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type SimpleEbuildParser struct {
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World pkg.PackageDatabase
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}
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func SourceFile(ctx context.Context, path string) (map[string]expand.Variable, error) {
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f, err := os.Open(path)
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if err != nil {
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return nil, fmt.Errorf("could not open: %v", err)
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}
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defer f.Close()
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file, err := syntax.NewParser(syntax.StopAt("src")).Parse(f, path)
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if err != nil {
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return nil, fmt.Errorf("could not parse: %v", err)
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}
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return shell.SourceNode(ctx, file)
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}
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// ScanEbuild returns a list of packages (always one with SimpleEbuildParser) decoded from an ebuild.
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func (ep *SimpleEbuildParser) ScanEbuild(path string, tree pkg.Tree) ([]pkg.Package, error) {
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defer func() {
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if r := recover(); r != nil {
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Error(r)
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}
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}()
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file := filepath.Base(path)
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file = strings.Replace(file, ".ebuild", "", -1)
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decodepackage, err := regexp.Compile(`^([<>]?\~?=?)((([^\/]+)\/)?(?U)(\S+))(-(\d+(\.\d+)*[a-z]?(_(alpha|beta|pre|rc|p)\d*)*(-r\d+)?))?$`)
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if err != nil {
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return []pkg.Package{}, errors.New("Invalid regex")
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}
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v := strings.Replace(path, filepath.Base(file)+".ebuild", "", -1)
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pName := filepath.Base(v)
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cat := filepath.Base(strings.Replace(v, pName, "", -1))
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packageInfo := decodepackage.FindAllStringSubmatch(filepath.Join(cat, file), -1)
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if len(packageInfo) != 1 || len(packageInfo[0]) != 12 {
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return []pkg.Package{}, errors.New("Failed decoding ebuild: " + path)
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}
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pack := &pkg.DefaultPackage{Name: packageInfo[0][5], Version: packageInfo[0][7], Category: cat}
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vars, err := SourceFile(context.TODO(), path)
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if err != nil {
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return []pkg.Package{pack}, nil
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// return []pkg.Package{}, err
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}
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// TODO: Handle this a bit better
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rdepend, ok := vars["RDEPEND"]
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if ok {
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rdepends := strings.Split(rdepend.String(), "\n")
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pack.PackageConflicts = []*pkg.DefaultPackage{}
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pack.PackageRequires = []*pkg.DefaultPackage{}
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for _, rr := range rdepends {
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rr = strings.TrimSpace(rr)
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conflicts := false
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if strings.HasPrefix(rr, "~") {
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rr = rr[1:]
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}
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if strings.HasPrefix(rr, "!") {
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rr = rr[1:]
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conflicts = true
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}
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if strings.HasSuffix(rr, "-") {
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rr = rr[0 : len(rr)-1]
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}
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deppackageInfo := decodepackage.FindAllStringSubmatch(rr, -1)
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if len(deppackageInfo) != 1 || len(deppackageInfo[0]) != 12 {
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continue
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}
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//TODO: Resolve to db or create a new one.
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dep := &pkg.DefaultPackage{Name: deppackageInfo[0][5], Version: deppackageInfo[0][7], Category: deppackageInfo[0][4]}
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if conflicts {
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pack.PackageConflicts = append(pack.PackageConflicts, dep)
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} else {
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pack.PackageRequires = append(pack.PackageRequires, dep)
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}
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}
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}
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//TODO: Deps and conflicts
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return []pkg.Package{pack}, nil
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}
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