doc/codelab/wiki: replace curl with a Go program

R=rsc, bradfitzgo
CC=golang-dev
https://golang.org/cl/4087043

doc/codelab/wiki/Makefile

@@ -13,9 +13,9 @@ CLEANFILES+=index.html srcextract.bin htmlify.bin
 index.html: srcextract.bin htmlify.bin
 	awk '/^!/{system(substr($$0,2)); next} {print}' "$$@" < wiki.html > index.html
 
-test: final.bin
+test: final.bin get.bin
 	bash ./test.sh
-	rm -f final.6 final.bin
+	rm -f final.6 final.bin get.6 get.bin
 
 %.bin: %.$O
 	$(LD) -o $@ $<

doc/codelab/wiki/get.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"http"
+	"flag"
+	"io"
+	"log"
+	"os"
+	"strings"
+)
+
+var post = flag.String("post", "", "urlencoded form data to POST")
+
+func main() {
+	flag.Parse()
+	url := flag.Arg(0)
+	if url == "" {
+		log.Exit("no url supplied")
+	}
+	var r *http.Response
+	var err os.Error
+	if *post != "" {
+		b := strings.NewReader(*post)
+		r, err = http.Post(url, "application/x-www-form-urlencoded", b)
+	} else {
+		r, _, err = http.Get(url)
+	}
+	if err != nil {
+		log.Exit(err)
+	}
+	defer r.Body.Close()
+	_, err = io.Copy(os.Stdout, r.Body)
+	if err != nil {
+		log.Exit(err)
+	}
+}

doc/codelab/wiki/test.sh

@@ -12,11 +12,11 @@ trap cleanup INT
 
 sleep 1
 
-curl -s -o test_edit.out http://localhost:8080/edit/Test 
+./get.bin http://localhost:8080/edit/Test > test_edit.out
 diff -u test_edit.out test_edit.good || cleanup 1
-curl -s -o /dev/null -d body=some%20content http://localhost:8080/save/Test
+./get.bin -post=body=some%20content http://localhost:8080/save/Test
 diff -u Test.txt test_Test.txt.good || cleanup 1
-curl -s -o test_view.out http://localhost:8080/view/Test
+./get.bin http://localhost:8080/view/Test > test_view.out
 diff -u test_view.out test_view.good || cleanup 1
 
 echo "Passed"