Add support for Zypper

internal/index/common.go

@@ -0,0 +1,20 @@
+package index
+
+import "strings"
+
+type repomd struct {
+	Locations []location `xml:"data>location"`
+}
+
+type location struct {
+	Href string `xml:"href,attr"`
+}
+
+func (r repomd) getFilelists() string {
+	for _, loc := range r.Locations {
+		if strings.Contains(loc.Href, "filelists.xml") {
+			return loc.Href
+		}
+	}
+	return ""
+}

internal/index/dnf.go

@@ -27,7 +27,6 @@ import (
 	"context"
 	"encoding/xml"
 	"errors"
-	"fmt"
 	"io"
 	"net/http"
 	"net/url"
@@ -37,23 +36,6 @@ import (
 	"go.elara.ws/distrohop/internal/tags"
 )
 
-type repomd struct {
-	Locations []location `xml:"data>location"`
-}
-
-type location struct {
-	Href string `xml:"href,attr"`
-}
-
-func (r repomd) getGzipFile() string {
-	for _, loc := range r.Locations {
-		if strings.HasSuffix(loc.Href, "filelists.xml.gz") {
-			return loc.Href
-		}
-	}
-	return ""
-}
-
 type DNF struct{}
 
 func (DNF) Name() string {
@@ -65,10 +47,9 @@ func (DNF) IndexURL(baseURL, version, repo, arch string) ([]string, error) {
 	if err != nil {
 		return nil, err
 	}
-	repomdPath := fmt.Sprintf("/pub/fedora/linux/releases/%s/%s/%s/os/repodata/repomd.xml", version, repo, arch)
-	u.Path = repomdPath
-
-	res, err := http.Get(u.String())
+	
+	repomdURL := u.JoinPath("linux/releases", version, repo, arch, "os/repodata/repomd.xml")
+	res, err := http.Get(repomdURL.String())
 	if err != nil {
 		return nil, err
 	}
@@ -80,13 +61,13 @@ func (DNF) IndexURL(baseURL, version, repo, arch string) ([]string, error) {
 		return nil, err
 	}
 
-	gzipFile := data.getGzipFile()
-	if gzipFile == "" {
-		return nil, errors.New("no gzip file found in repomd.xml")
+	filelists := data.getFilelists()
+	if filelists == "" {
+		return nil, errors.New("no filelists found in repomd.xml")
 	}
-
-	u.Path = fmt.Sprintf("/pub/fedora/linux/releases/%s/%s/%s/os/%s", version, repo, arch, gzipFile)
-	return []string{u.String()}, nil
+	
+	filelistsURL := u.JoinPath("linux/releases", version, repo, arch, "os", filelists)
+	return []string{filelistsURL.String()}, nil
 }
 
 func (DNF) ReadPkgData(r io.Reader, out chan Record) {

internal/index/index.go

@@ -47,6 +47,7 @@ var importers = []Importer{
 	APT{},
 	DNF{},
 	Pacman{},
+	Zypper{},
 }
 
 // GetImporter gets an importer by its name

internal/index/zypper.go

@@ -0,0 +1,69 @@
+/*
+ * distrohop - A utility for correlating and identifying equivalent software
+ * packages across different Linux distributions
+ *
+ * Copyright (C) 2025 Elara Ivy <elara@elara.ws>
+ *
+ * This file is part of distrohop.
+ *
+ * distrohop 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.
+ *
+ * distrohop 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 distrohop.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package index
+
+import (
+	"encoding/xml"
+	"errors"
+	"io"
+	"net/http"
+	"net/url"
+)
+
+ type Zypper struct{}
+ 
+ func (Zypper) Name() string {
+	return "zypper"
+ }
+ 
+ func (Zypper) IndexURL(baseURL, version, repo, _ string) ([]string, error) {
+	u, err := url.ParseRequestURI(baseURL)
+	if err != nil {
+		return nil, err
+	}
+	
+	repomdURL := u.JoinPath(version, "repo", repo, "repodata/repomd.xml")
+	res, err := http.Get(repomdURL.String())
+	if err != nil {
+		return nil, err
+	}
+	defer res.Body.Close()
+ 
+	var data repomd
+	err = xml.NewDecoder(res.Body).Decode(&data)
+	if err != nil {
+		return nil, err
+	}
+ 
+	gzipFile := data.getFilelists()
+	if gzipFile == "" {
+		return nil, errors.New("no filelists found in repomd.xml")
+	}
+ 
+	filelistURL := u.JoinPath(version, "repo", repo, gzipFile)
+	return []string{filelistURL.String()}, nil
+ }
+ 
+ func (Zypper) ReadPkgData(r io.Reader, out chan Record) {
+ 	DNF{}.ReadPkgData(r, out)
+ }