From dd2a1c38a5a9f561d58b58da56d3230fd715fcde Mon Sep 17 00:00:00 2001
From: Gabriel Arakaki Giovanini <mail@gabrielgio.me>
Date: Sat, 26 Aug 2023 17:32:58 +0200
Subject: Initial commit

---
 main.go | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 main.go

(limited to 'main.go')

diff --git a/main.go b/main.go
new file mode 100644
index 0000000..9e64dbb
--- /dev/null
+++ b/main.go
@@ -0,0 +1,75 @@
+package main
+
+import (
+	"archive/tar"
+	"bufio"
+	"compress/gzip"
+	"errors"
+	"flag"
+	"fmt"
+	"io"
+	"net/http"
+)
+
+func fechIndex(url string) (io.ReadCloser, error) {
+	resp, err := http.Get(url)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != 200 {
+		return nil, errors.New("Invlid response")
+	}
+
+	return resp.Body, nil
+}
+
+func main() {
+	url := flag.String("url", "", "Url to the APKINDEX.tar.gz")
+	flag.Parse()
+
+	tarStream, err := fechIndex(*url)
+	if err != nil {
+		panic("Error fecthing the index: " + err.Error())
+	}
+
+	defer tarStream.Close()
+
+	archive, err := gzip.NewReader(tarStream)
+	if err != nil {
+		panic("Error creating gzip reader: " + err.Error())
+	}
+
+	tr := tar.NewReader(archive)
+
+	for {
+		h, err := tr.Next()
+		if err != nil {
+			panic("Error reading next tar entry: " + err.Error())
+		}
+
+		if h.FileInfo().Name() == "APKINDEX" {
+			break
+		}
+	}
+
+	s := bufio.NewScanner(tr)
+
+	entries := make([]*Entry, 0)
+	lines := make([]string, 0)
+
+	for s.Scan() {
+		l := s.Text()
+		if l == "" {
+			entry := Parse(lines)
+			entries = append(entries, entry)
+			lines = make([]string, 0)
+		} else {
+			lines = append(lines, l)
+		}
+	}
+
+	for _, e := range entries {
+		fmt.Printf("%+v\n", e)
+	}
+}
-- 
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