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main.go
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main.go
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package main
import (
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
"strings"
"github.com/PuerkitoBio/goquery"
"github.com/go-yaml/yaml"
)
type Pubspec struct {
Dependencies map[string]interface{} `yaml:"dependencies,omitempty"`
DevDependencies map[string]interface{} `yaml:"dev_dependencies,omitempty"`
}
func main() {
if len(os.Args) != 2 {
log.Fatalln("you must specify a path to one pubspec.yaml")
}
file, err := os.Open(os.Args[1])
if err != nil {
log.Fatal(err)
}
pubspec := Pubspec{}
bytes, err := ioutil.ReadAll(file)
if err != nil {
log.Fatal(err)
}
err = yaml.Unmarshal(bytes, &pubspec)
if err != nil {
log.Fatal(err)
}
fmt.Println("-- dependencies updates --\n")
iterateDependencies(pubspec.Dependencies)
fmt.Println("-- dev_dependencies updates --\n")
iterateDependencies(pubspec.DevDependencies)
}
func iterateDependencies(deps map[string]interface{}) {
for pkg, version := range deps {
version, ok := version.(string)
if !ok {
continue
}
version = strings.TrimPrefix(version, "^")
newestVersion, err := getNewestVersion(pkg)
if err != nil {
log.Println(err)
}
if version != newestVersion {
fmt.Printf("%s: %s\n\tnew version: %s\n\tchangelog: %s#-changelog-tab-\n\n",
pkg, version, newestVersion, getPackageUrl(pkg))
}
}
}
func getNewestVersion(pkg string) (version string, err error) {
// Request the HTML page.
res, err := http.Get(getPackageUrl(pkg))
if err != nil {
return "", err
}
defer res.Body.Close()
if res.StatusCode != 200 {
return "", fmt.Errorf("status code error: %d %s", res.StatusCode, res.Status)
}
// Load the HTML document
doc, err := goquery.NewDocumentFromReader(res.Body)
if err != nil {
return "", err
}
title := doc.Find(".package-header").Find(".title").Text()
version = strings.Split(title, " ")[1]
return version, nil
}
func getPackageUrl(pkg string) string {
return "https://pub.dev/packages/" + pkg
}