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package main
import (
"archive/tar"
"bufio"
"compress/gzip"
"errors"
"io"
"net/http"
"os"
flag "github.com/spf13/pflag"
)
func main() {
url := flag.StringP("url", "u", "", "Url to the APKINDEX.tar.gz")
output := flag.StringP("output", "o", "index.md", "Output path")
templateType := flag.StringP("template-type", "p", "text", "Template system to be used, options: html, text")
templateFile := flag.StringP("template-file", "t", "text", "Template file to be used")
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)
}
}
outputFile, err := getOutputFile(*output)
if err != nil {
panic("Error openning output file: " + err.Error())
}
tmpl, err := GetTemplate(*templateType, *templateFile)
if err != nil {
panic("Error loading template file: " + err.Error())
}
tmpl.Execute(outputFile, entries)
}
func getOutputFile(output string) (*os.File, error) {
if output != "" {
outputFile, err := os.Create(output)
if err != nil {
return nil, err
}
return outputFile, nil
} else {
return os.Stdout, nil
}
}
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
}
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