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scraper.go
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/
scraper.go
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package main
import (
"bufio"
"fmt"
"github.com/PuerkitoBio/goquery"
"os"
"os/exec"
_ "strconv"
"time"
)
func main() {
//loop
for {
dateString := dateString()
filename := dateString + ".md"
//create markdown file
createMarkDown(dateString, filename)
//TODO: use goroutinez
scrape("objective-c", filename)
scrape("go", filename)
scrape("javascript", filename)
gitPull()
gitAddAll()
gitCommit(dateString)
gitPush()
time.Sleep(time.Duration(24) * time.Hour)
}
}
func dateString() string {
y, m, d := time.Now().Date()
mStr := fmt.Sprintf("%d", m)
dStr := fmt.Sprintf("%d", d)
if m < 10 {
mStr = fmt.Sprintf("0%d", m)
}
if d < 10 {
dStr = fmt.Sprintf("0%d", d)
}
return fmt.Sprintf("%d-%s-%s", y, mStr, dStr)
}
func createMarkDown(date string, filename string) {
// open output file
fo, err := os.Create(filename)
if err != nil {
panic(err)
}
// close fo on exit and check for its returned error
defer func() {
if err := fo.Close(); err != nil {
panic(err)
}
}()
// make a write buffer
w := bufio.NewWriter(fo)
w.WriteString("###" + date + "\n")
w.Flush()
}
func scrape(language string, filename string) {
var doc *goquery.Document
var e error
// var w *bufio.Writer
f, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY, 0600)
if err != nil {
panic(err)
}
defer f.Close()
if _, err = f.WriteString(fmt.Sprintf("\n####%s\n", language)); err != nil {
panic(err)
}
if doc, e = goquery.NewDocument(fmt.Sprintf("https://github.com/trending?l=%s", language)); e != nil {
panic(e.Error())
}
doc.Find("li.repo-leaderboard-list-item").Each(func(i int, s *goquery.Selection) {
title := s.Find("div h2 a").Text()
owner := s.Find("span.owner-name").Text()
repoName := s.Find("strong").Text()
description := s.Find("p.repo-leaderboard-description").Text()
url, _ := s.Find("h2 a").Attr("href")
url = "https://github.com" + url
fmt.Println("owner: ", owner)
fmt.Println("repo: ", repoName)
fmt.Println("URL: ", url)
if _, err = f.WriteString("* [" + title + "](" + url + "): " + description + "\n"); err != nil {
panic(err)
}
})
}
func gitPull() {
app := "git"
arg0 := "pull"
arg1 := "origin"
arg2 := "master"
cmd := exec.Command(app, arg0, arg1, arg2)
out, err := cmd.Output()
if err != nil {
println(err.Error())
return
}
print(string(out))
}
func gitAddAll() {
app := "git"
arg0 := "add"
arg1 := "."
cmd := exec.Command(app, arg0, arg1)
out, err := cmd.Output()
if err != nil {
println(err.Error())
return
}
print(string(out))
}
func gitCommit(date string) {
app := "git"
arg0 := "commit"
arg1 := "-am"
arg2 := date
cmd := exec.Command(app, arg0, arg1, arg2)
out, err := cmd.Output()
if err != nil {
println(err.Error())
return
}
print(string(out))
}
func gitPush() {
app := "git"
arg0 := "push"
arg1 := "origin"
arg2 := "master"
cmd := exec.Command(app, arg0, arg1, arg2)
out, err := cmd.Output()
if err != nil {
println(err.Error())
return
}
print(string(out))
}