Move http code into http.go

cmd/fdroidcl/http.go

@@ -0,0 +1,46 @@
+/* Copyright (c) 2015, Daniel Martí <mvdan@mvdan.cc> */
+/* See LICENSE for licensing information */
+
+package main
+
+import (
+	"errors"
+	"io/ioutil"
+	"net/http"
+	"os"
+)
+
+var errNotModified = errors.New("etag matches, file was not modified")
+
+func downloadEtag(url, path string) error {
+	client := &http.Client{}
+	req, err := http.NewRequest("GET", url, nil)
+
+	etagPath := path + "-etag"
+	if _, err := os.Stat(path); err == nil {
+		etag, _ := ioutil.ReadFile(etagPath)
+		req.Header.Add("If-None-Match", string(etag))
+	}
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode == http.StatusNotModified {
+		return errNotModified
+	}
+	jar, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	err = ioutil.WriteFile(path, jar, 0644)
+	err2 := ioutil.WriteFile(etagPath, []byte(resp.Header["Etag"][0]), 0644)
+	if err != nil {
+		return err
+	}
+	if err2 != nil {
+		return err2
+	}
+	return nil
+}

cmd/fdroidcl/main.go

@@ -4,12 +4,9 @@
 package main
 
 import (
-	"errors"
 	"flag"
 	"fmt"
-	"io/ioutil"
 	"log"
-	"net/http"
 	"os"
 	"strings"
 
@@ -160,41 +157,6 @@ func init() {
 	}
 }
 
-var errNotModified = errors.New("etag matches, file was not modified")
-
-func downloadEtag(url, path string) error {
-	client := &http.Client{}
-	req, err := http.NewRequest("GET", url, nil)
-
-	etagPath := path + "-etag"
-	if _, err := os.Stat(path); err == nil {
-		etag, _ := ioutil.ReadFile(etagPath)
-		req.Header.Add("If-None-Match", string(etag))
-	}
-
-	resp, err := client.Do(req)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode == http.StatusNotModified {
-		return errNotModified
-	}
-	jar, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return err
-	}
-	err = ioutil.WriteFile(path, jar, 0644)
-	err2 := ioutil.WriteFile(etagPath, []byte(resp.Header["Etag"][0]), 0644)
-	if err != nil {
-		return err
-	}
-	if err2 != nil {
-		return err2
-	}
-	return nil
-}
-
 func indexPath(repoName string) string {
 	return repoName + ".jar"
 }